Note: This page contains sample records for the topic portneuf river idaho from Science.gov.
While these samples are representative of the content of Science.gov,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of Science.gov
to obtain the most current and comprehensive results.
Last update: November 12, 2013.
1

LOWER PORTNEUF RIVER, IDAHO - WATER QUALITY STATUS REPORT, 1977  

EPA Science Inventory

This paper describes the results of a 12 month, bi-weekly water quality sampling program on the Lower Portneuf River, Idaho (17040208). Samples were collected at 7 river stations, 5 effluents, and a major stream. The results indicate that Marsh Creek, a major tributary draining...

2

Surface- and Ground-Water Relations on the Portneuf River, and Temporal Changes in Ground-Water Levels in the Portneuf Valley, Caribou and Bannock Counties, Idaho, 2001-02.  

National Technical Information Service (NTIS)

The State of Idaho and local water users are concerned that streamflow depletion in the Portneuf River in Caribou and Bannock Counties is linked to ground-water withdrawals for irrigated agriculture. A year-long field study during 2001-02 that focused on ...

G. J. Barton

2004-01-01

3

SOURCE APPORTIONMENT OF SECONDARY SULFATE IN PORTNEUF VALLEY, IDAHO PM-10 NONATTAINMENT AREA  

EPA Science Inventory

Region 10 will use Chemical Mass Balance (CMB) modeling in a effort to apportion secondary sulfate that significantly contributes to the total PM-10 mass observed on ambient filters in the Pocatello, Idaho area. This study will investigate whether it is reasonable to apportion ...

4

Raptor Ecology of Raft River Valley, Idaho.  

National Technical Information Service (NTIS)

Raptor data were gathered in the 988-km exp 2 Raft River Valley in southcentral Idaho while conducting a tolerance study on the nesting Ferruginous Hawk (Buteo regalis) near the Department of Energy's Raft River Geothermal Site. Prior research from 1972 t...

T. L. Thurow C. M. White R. P. Howard J. F. Sullivan

1980-01-01

5

Ecosystem Structure and Function are Complementary Measures of Water Quality in a Polluted, Spring-Influenced River  

Microsoft Academic Search

We tested how ecosystem structure (macroinvertebrate community and primary producers) and functions (leaf decay and open-water\\u000a metabolism) are related to water quality in the Portneuf River, southeast Idaho. This river is polluted with excess nutrients\\u000a and fine sediment and simultaneously demonstrates a range of hydrologic conditions due to a variety of groundwater and spring\\u000a inputs. Macroinvertebrate abundance, functional feeding group

Jessica M. Hopkins; Amy M. Marcarelli; Heather A. Bechtold

2011-01-01

6

Geothermal features of Snake River plain, Idaho  

SciTech Connect

The Snake River plain is the track of a hot spot beneath the continental lithosphere. The track has passed through southern Idaho as the continental plate has moved over the hot spot at a rate of about 3.5 cm/yr. The present site of the hot spot is Yellowstone Park. As a consequence of the passage, a systematic sequence of geologic and tectonic events illustrates the response of the continental lithosphere to this hotspot event. The three areas that represent various time slices in the evolution are the Yellowstone Plateau, the Eastern Snake River plain downwarp, and the Western Snake River plain basin/Owhyee Plateau. In addition to the age of silicic volcanic activity, the topographic profile of the Snake River plain shows a systematic variation from the high elevations in the east to lowest elevations on the west. The change in elevation follows the form of an oceanic lithosphere cooling curve, suggesting that temperature change is the dominant effect on the elevation.

Blackwell, D.D.

1987-08-01

7

Salmon Supplementation Studies in Idaho Rivers; Idaho Supplementation Studies, 2000-2001 Annual Report  

Microsoft Academic Search

This report summarizes brood year 1999 juvenile production and emigration data and adult return information for 2000 for streams studied by the Nez Perce Tribe for the cooperative Idaho Salmon Supplementation Studies in Idaho Rivers (ISS) project. In order to provide inclusive juvenile data for brood year 1999, we include data on parr, presmolt, smolt and yearling captures. Therefore, our

Chris Beasley; R. A. Tabor; Ryan Kinzer

2003-01-01

8

KOOTENAI RIVER, BOUNDARY COUNTY, IDAHO - WATER QUALITY STATUS REPORT, 1977  

EPA Science Inventory

The Kootenai River (17010104) is a major tributary to the Columbia River, draining southern British Columbia, northwestern Montana, and portions of northern Idaho. One-third of the river lies in the United States, its source and mouth are in Canada. The vast majority of the dra...

9

Ecological Risk Assessment for the Middle Snake River, Idaho.  

National Technical Information Service (NTIS)

An ecological risk assessment was completed for the Middle Snake River, Idaho. In this assessment, mathematical simulations and field observations were used to analyze exposure and ecological effects and to estimate risk.

D. W. Karna J. R. Yearsley M. Falter P. A. Cirone T. V. Royer

2002-01-01

10

UPPER SNAKE RIVER, MAIN STEM (LAKE WALCOTT TO IDAHO-WYOMING BORDER), IDAHO. WATER QUALITY STATUS REPORT 1977  

EPA Science Inventory

This study sampled 17 water quality stations in the Upper Snake River, Idaho (1704) on a bi-weekly basis. The area extended from Heise and Rexburg to the Raft River. Two point sources (Idaho Falls and Blackfoot Sewage Treatment Plants) and 2 tributaries (Blackfoot and Raft Rive...

11

Shrub-steppe vegetation trend, Middle Fork Salmon River, Idaho  

Treesearch

Title: Shrub-steppe vegetation trend, Middle Fork Salmon River, Idaho ... Wilderness science in a time of change conference—Volume 3: Wilderness as a place for scientific inquiry; 1999 May 23–27; Missoula, MT. ... Last Modified: July 21, 2013.

12

[UPPER POTLATCH RIVER STUDY, LATAH COUNTY, IDAHO. 1979  

EPA Science Inventory

In Water Year 1979, a water quality study was conducted on the Upper Potlatch River near Bovill in Latah County, Idaho (17060306) to determine the present water quality of the stream and to obtain background information to determine effluent limitations for the City of Bovill sew...

13

WEISER RIVER STUDY, ADAMS AND WASHINGTON COUNTIES, IDAHO, 1979  

EPA Science Inventory

During the 1979 water year, a water quality study was conducted on the Weiser and Little Weiser Rivers (17050124) in Washington and Adams Counties, Idaho. The study was completed to obtain background information on effluent limitations for the cities of Cambridge and Council and...

14

Shallow faults mapped with seismic reflections: Lost River Fault, Idaho  

Microsoft Academic Search

A high-resolution seismic-reflection survey, conducted at the intersection of Arentson Gulch road and the western splay of the Lost River fault scarp in central Idaho, defines a bedrock surface about 80 m deep which is segmented by several faults forming graben structures. Six meters of total fault displacement can be interpreted on the bedrock reflector while only 1 to 2

Mubarik Ali; Richard D. Miller; Don W. Steeples

1991-01-01

15

Geology and Wine 11. Terroir of the Western Snake River Plain, Idaho, USA  

Technology Transfer Automated Retrieval System (TEKTRAN)

This article explores unique factors that shape the terroir of Idaho’s principal wine grape-growing district. Most Idaho wine grape vineyards are located in the Western Snake River Plain (WSRP) rift basin (~43°N, ~114°W) on soils derived from lake, river, or wind-blown sediments, volcanic events, a...

16

Water geochemistry of hydrothermal systems, Wood River District, Idaho  

SciTech Connect

Hydrothermal systems of the Wood River District, central Idaho, have been studied by geologic mapping of thermal spring areas and geochemical investigations of thermal and non-thermal waters. This report summarizes the new geochemical data gathered during the study. Integration of the results of geological and geochemical studies has led to development of a target model for hydrothermal resources on the margin of the Idaho Batholith. Warfield Hot Springs, with temperatures up to 58/sup 0/C, flow from a major shear zone along the margin of an apophysis of the batholith. Hailey Hot Springs, with temperatures up to 60/sup 0/C, occur in an area of multiple thrust faults and newly recognized, closely spaced normal faults in the Paleozoic Milligen and Wood River Formations, 2.5 km from a highly brecciated batholith contact. Other Wood River district hydrothermal systems also occur along the margins of batholith apophyses or in adjacent highly fractured Paleozoic rocks, where there are indications of batholith rocks at shallow depths (100 to 300 m) in water wells.

Zeisloft, J.; Foley, D.; Blackett, R.

1983-08-01

17

Hydrothermal injection experiments at the Raft River KGRA, Idaho  

SciTech Connect

The optimal development and management of a geothermal resource requires a knowledge of the hydrological characteristics of the reservoir. Reservoir engineering analysis techniques for permeable aquifers have been undergoing development for several decades but little attention has been paid to fracture-dominated systems. A program to test the ability of Huff-Puff tests to help characterize a fracture-dominated reservoir is presented. Several series of these injection (Huff)-backflow (Puff) tests were conducted at the Raft River KGRA in Southern Idaho. These test series are described and preliminary results and interpretations are discussed.

Downs, W.F.; McAtee, R.E.; Capuano, R.M.; Sill, W.

1982-12-14

18

Evaluate Status of Pacific Lamprey in the Clearwater River and Salmon River Drainages, Idaho, 2009 Technical Report.  

SciTech Connect

Pacific lamprey Lampetra tridentata have received little attention in fishery science until recently, even though abundance has declined significantly along with other anadromous fish species in Idaho. Pacific lamprey in Idaho have to navigate over eight lower Snake River and Columbia River hydroelectric facilities for migration downstream as juveniles to the Pacific Ocean and again as adults migrating upstream to their freshwater spawning grounds in Idaho. The number of adult Pacific lamprey annually entering the Snake River basin at Ice Harbor Dam has declined from an average of over 18,000 during 1962-1969 to fewer than 600 during 1998-2006. Based on potential accessible streams and adult escapement over Lower Granite Dam on the lower Snake River, we estimate that no more than 200 Pacific lamprey adult spawners annually utilize the Clearwater River drainage in Idaho for spawning. We utilized electrofishing in 2000-2006 to capture, enumerate, and obtain biological information regarding rearing Pacific lamprey ammocoetes and macropthalmia to determine the distribution and status of the species in the Clearwater River drainage, Idaho. Present distribution in the Clearwater River drainage is limited to the lower sections of the Lochsa and Selway rivers, the Middle Fork Clearwater River, the mainstem Clearwater River, the South Fork Clearwater River, and the lower 7.5 km of the Red River. In 2006, younger age classes were absent from the Red River.

Cochnauer, Tim; Claire, Christopher [Idaho Department of Fish and Game

2009-05-07

19

Salmon Supplementation Studies in Idaho Rivers; Idaho Supplementation Studies, 2000-2001 Annual Report.  

SciTech Connect

This report summarizes brood year 1999 juvenile production and emigration data and adult return information for 2000 for streams studied by the Nez Perce Tribe for the cooperative Idaho Salmon Supplementation Studies in Idaho Rivers (ISS) project. In order to provide inclusive juvenile data for brood year 1999, we include data on parr, presmolt, smolt and yearling captures. Therefore, our reporting period includes juvenile data collected from April 2000 through June 2001 for parr, presmolts, and smolts and through June 2002 for brood year 1999 yearling emigrants. Data presented in this report include; fish outplant data for treatment streams, snorkel and screw trap estimates of juvenile fish abundance, juvenile emigration profiles, juvenile survival estimates to Lower Granite Dam (LGJ), redd counts, and carcass data. There were no brood year 1999 treatments in Legendary Bear or Fishing Creek. As in previous years, snorkeling methods provided highly variable population estimates. Alternatively, rotary screw traps operated in Lake Creek and the Secesh River provided more precise estimates of juvenile abundance by life history type. Juvenile fish emigration in Lake Creek and the Secesh River peaked during July and August. Juveniles produced in this watershed emigrated primarily at age zero, and apparently reared in downstream habitats before detection as age one or older fish at the Snake and Columbia River dams. Over the course of the ISS study, PIT tag data suggest that smolts typically exhibit the highest relative survival to Lower Granite Dam (LGJ) compared to presmolts and parr, although we observed the opposite trend for brood year 1999 juvenile emigrants from the Secesh River. SURPH2 survival estimates for brood year 1999 Lake Creek parr, presmolt, and smolt PIT tag groups to (LGJ) were 27%, 39%, and 49% respectively, and 14%, 12%, and 5% for the Secesh River. In 2000, we counted 41 redds in Legendary Bear Creek, 4 in Fishing Creek, 5 in Slate Creek, 153 in the Secesh River, and 180 in Lake Creek. We recovered 19 carcasses (11 natural 8 hatchery) in Legendary Bear Creek, one hatchery carcass in Fishing Creek, zero carcasses in Slate Creek, 82 carcasses (19 of unknown origin and 63 natural) in the Secesh River, and 178 carcasses (2 hatchery 176 natural) from Lake Creek. In 2000 the majority (82%) of carcasses were recovered in index spawning reaches. Preliminary analysis of brood year 1997 PIT tag return data for the Secesh River and Lake Creek yields LGJ to Lower Granite Dam (LGD) juvenile to adult survival rates of, 0.00% for parr, 0.20% for presmolts, and 3.13% for smolts. LGJ to LGD juvenile to adult return rates for brood year 1997 Legendary Bear Creek were 2.98% for naturally produced PIT tagged smolts and 0.89% for PIT tagged supplementation smolts. No adults were detected at LGD from brood year 1997 parr released in Fishing Creek.

Beasley, Chris; Tabor, R.A.; Kinzer, Ryan (Nez Perce Tribe, Department of Fisheries Resource Management, Lapwai, ID)

2003-04-01

20

Thermal springs in the Salmon River basin, central Idaho  

SciTech Connect

The Salmon River basin within the study area occupies an area of approximately 13,000 square miles in central Idaho. Geologic units in the basin are igneous, sedimentary, and metamorphic rocks; however, granitic rocks of the Idaho batholith are predominant. Water from thermal springs ranges in temperature from 20.5/sup 0/ to 94.0/sup 0/ Celsius. The waters are slightly alkaline and are generally a sodium carbonate or bicarbonate type. Dissolved-solids concentrations are variable and range from 103 to 839 milligrams per liter. Estimated reservoir temperatures determined from the silicic acid-corrected silica, sodium-potassium-calcium, and sulfate-water isotope geothermometers range from 30/sup 0/ to 184/sup 0/ Celsius. Tritium concentrations in sampled thermal waters are near zero and indicate the waters are at least 100 years old. Stable-isotope data indicate it is unlikely that a single hot-water reservoir supplies hot springs in the basin. Thermal springs discharged at least 15,800 acre-feet of water in 1980. Associated convective heat flux is 2.7 x 10/sup 7/ calories per second.

Young, H.W.; Lewis, R.E.

1982-02-01

21

Discovery of a Balkan fresh-water fauna in the Idaho formation of Snake River Valley, Idaho  

USGS Publications Warehouse

In 1866 Gabb described Melania taylori and Lithasia antiqua "from a fresh-water deposit on Snake River, Idaho Territory, on the road from Fort Boise to the Owyhee mining country. Collected by A. Taylor." He states that a small bivalve, perhaps a Sphaerium, was associated with them.

Dall, W. H.

1925-01-01

22

Progressive Neogene Drainage Capture by Western Snake River System, Idaho and Nevada  

NASA Astrophysics Data System (ADS)

Detrital zircon provenance analysis of Holocene and Neogene fluvial systems in the western Snake River Plain demonstrate the eastward and southward migration of a topographic divide during the 17 to 0 Ma passage of the Yellowstone-Snake River Plain volcanic high. Initial fluvial sands (16-10 Ma) of the western Snake River Plain and Oregon-Idaho graben were sourced in the Idaho batholith to the north. Late Miocene (7 to 4 Ma) sands deposited on the shores of Lake Idaho received input from streams draining late Eocene volcanic terranes in northern Nevada, demonstrating the southward migration of the drainage divide. Pliocene fluvial sands near Twin Falls contain diverse recycled Proterozoic zircon grains, derived from erosion of the central and eastern Idaho thrust belts. These appear in the central and western Snake River Plain only after the east- migrating drainage divide, centered on the hotspot, crossed into Phanerozoic rocks of these thrust belts.

Link, P. K.; Beranek, L. P.

2006-12-01

23

POTLATCH RIVER, LATAH, CLEARWATER, AND NEZ PERCE COUNTIES, IDAHO - PRELIMINARY INVESTIGATION REPORT, 1994  

EPA Science Inventory

The Latah Soil and Water Conservation District requested assistance from the Soil Conservation Service in the development of appropriate criteria for prioritizing subwatersheds in the Potlatch River Basin, Idaho (17060306) for the implementation of a long term watershed treatment...

24

Evaluate Status of Pacific Lamprey in the Clearwater River Drainage, Idaho, Annual Report 2002.  

SciTech Connect

In 2002 Idaho Department of Fish and Game continued investigation into the status of Pacific lamprey populations in Idaho's Clearwater River drainage. Trapping, electrofishing, and spawning ground redd surveys were used to determine Pacific lamprey distribution, life history strategies, and habitat requirements in the South Fork Clearwater River, Lochsa River, Selway River, and Middle Fork Clearwater River subbasins. Five-hundred forty-one ammocoetes were captured electroshocking 70 sites in the South Fork Clearwater River, Lochsa River, Selway River, Middle Fork Clearwater River, Clearwater River, and their tributaries in 2002. Habitat utilization surveys in Red River support previous work indicating Pacific lamprey ammocoete densities are greater in lateral scour pool habitats compared to riffles and rapids. Presence-absence survey findings in 2002 augmented 2000 and 2001 indicating Pacific lamprey macrothalmia and ammocoetes are not numerous or widely distributed. Pacific lamprey distribution was confined to the lower reaches of Red River below rkm 8.0, the South Fork Clearwater River, Lochsa River (Ginger Creek to mouth), Selway River (Race Creek to mouth), Middle Fork Clearwater River, and the Clearwater River (downstream to Potlatch River).

Cochnauer, Tim; Claire, Christopher

2003-10-01

25

Adult Chinook Salmon Abundance Monitoring in the Secesh River and Lake Creek, Idaho, 2000 Annual Report  

Microsoft Academic Search

Underwater time-lapse video technology has been used to monitor adult spring and summer chinook salmon (Oncorhynchus tshawytscha) escapement into the Secesh River and Lake Creek, Idaho, since 1998. Underwater time-lapse videography is a passive methodology that does not trap or handle this Endangered Species Act listed species. Secesh River chinook salmon represent a wild spawning aggregate that has not been

Dave Faurot; Paul A. Kucera

2001-01-01

26

Electrofishing Effort Required to Estimate Biotic Condition in Southern Idaho Rivers  

Microsoft Academic Search

An important issue surrounding biomonitoring in large rivers is the minimum sampling effort required to collect an adequate number of fish for accurate and precise determinations of biotic condition. During the summer of 2002, we sampled 15 randomly selected large-river sites in southern Idaho to evaluate the effects of sampling effort on an index of biotic integrity (IBI). Boat electrofishing

Terry R. Maret; Douglas S. Ott; Alan T. Herlihy

2007-01-01

27

Update of Hydrologic Conditions and Distribution of Selected Constituents in Water, Snake River Plain Aquifer and Perched-Water Zones, Idaho National Laboratory, Idaho, Emphasis 2002-05.  

National Technical Information Service (NTIS)

Radiochemical and chemical wastewater discharged since 1952 to infiltration ponds, evaporation ponds, and disposal wells at the Idaho National Laboratory (INL) has affected water quality in the Snake River Plain aquifer and perched-water zones underlying ...

L. C. Davis

2008-01-01

28

Water Quality and Biological Conditions in the Lower Boise River, Ada and Canyon Counties, Idaho, 1994-2002.  

National Technical Information Service (NTIS)

The water quality and biotic integrity of the lower Boise River between Lucky Peak Dam and the river's mouth near Parma, Idaho, have been affected by agricultural land and water use, wastewater treatment facility discharge, urbanization, reservoir operati...

D. E. MacCoy

2004-01-01

29

Stratigraphy of the unsaturated zone and the Snake River Plain aquifer at and near the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

The unsaturated zone and the Snake River Plain aquifer at and near the Idaho National Engineering Laboratory (INEL) are made up of at least 178 basalt-flow groups, 103 sedimentary interbeds, 6 andesite-flow groups, and 4 rhyolite domes. Stratigraphic units identified in 333 wells in this 890-mile{sup 2} area include 121 basalt-flow groups, 102 sedimentary interbeds, 6 andesite-flow groups, and 1 rhyolite dome. Stratigraphic units were identified and correlated using the data from numerous outcrops and 26 continuous cores and 328 natural-gamma logs available in December 1993. Basalt flows make up about 85% of the volume of deposits underlying the area.

Anderson, S.R.; Liszewski, M.J.

1997-08-01

30

THE CHANNELS AND WATERS OF THE UPPER SALMON RIVER AREA, IDAHO. (HYDROLOGIC EVALUATION OF THE UPPER SALMON RIVER AREA)  

EPA Science Inventory

The upper 1,800 square miles of the Salmon River drainage basin (17060201) in south-central Idaho is an area of great scenic beauty and little-disturbed natural environment. Proper development and use of this land and its natural resources are contingent on a multifaceted and de...

31

Unique Allacustrine Migration Patterns of a Bull Trout Population in the Pend Oreille River Drainage, Idaho  

Microsoft Academic Search

We captured and radio-tagged six adult bull trout Salvelinus confluentus in a spawning tributary of the East River basin, Idaho. These fish were tracked for a year to determine the type of migration they endured to reach their overwintering and spawning locations. Our tracking efforts revealed that the fish made complex postspawning migrations downstream and then upstream either towards or

Joseph M. DuPont; Richard S. Brown; David R. Geist

2007-01-01

32

Heat flow and seismicity patterns in the vicinity of the eastern Snake River Plain, Idaho  

Microsoft Academic Search

New heat flow data and thermal modeling are used to calculate crustal temperatures in and adjacent to the eastern Snake River Plain (SRP). The estimated crustal temperature are then used to investigate the relationship between crustal strength and the observed parabolic pattern of seismicity around the SRP. Heat flow below the SRP aquifer in deep wells on the Idaho National

Blackwell; S. A. D. D. Kelley; J. L. Steele

1993-01-01

33

Incidence of Human Dental Fluorosis in the Raft River Geothermal Area in Southern Idaho. Final Report.  

National Technical Information Service (NTIS)

A total of 270 school aged individuals representing 151 families living in the vicinity of the Raft River Geothermal area of Idaho were examined for evidence of dental fluorosis. Of these 132 had some dental anomaly. Fifty-two individuals from 45 families...

J. L. Shupe A. E. Olson H. B. Peterson

1978-01-01

34

A REEXAMINATION OF THE COEUR D'ALENE RIVER, IDAHO, 1971  

EPA Science Inventory

The Environmental Protection Agency has periodically examined the quality of the Coeur dAlene River, Idaho (17010301, 17010303) to determine the effects of mine and mill wastes. This examination was conducted on September 22 and 23, 1971 as a supplement to the examination and re...

35

Assessing landslide potential using GIS, soil wetness modeling and topographic attributes, Payette River, Idaho  

Microsoft Academic Search

This study utilizes GIS modeling to determine if the location of 559 landslides in the 875 km2 catchment of the Middle Fork of the Payette River, Idaho can be predicted based on topographic attributes and a wetness index generated by the DYNWET model. Slope and elevation were significantly related to landslide occurrence at this landscape scale. Aspect was also retained

Mandy Lineback Gritzner; W. Andrew Marcus; Richard Aspinall; Stephan G. Custer

2001-01-01

36

Preliminary delineation of natural geochemical reactions, Snake River Plain aquifer system, Idaho National Engineering Laboratory and vicinity, Idaho  

SciTech Connect

The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, is conducting a study to determine the natural geochemistry of the Snake River Plain aquifer system at the Idaho National Engineering Laboratory (INEL), Idaho. As part of this study, a group of geochemical reactions that partially control the natural chemistry of ground water at the INEL were identified. Mineralogy of the aquifer matrix was determined using X-ray diffraction and thin-section analysis and theoretical stabilities of the minerals were used to identify potential solid-phase reactants and products of the reactions. The reactants and products that have an important contribution to the natural geochemistry include labradorite, olivine, pyroxene, smectite, calcite, ferric oxyhydroxide, and several silica phases. To further identify the reactions, analyses of 22 representative water samples from sites tapping the Snake River Plain aquifer system were used to determine the thermodynamic condition of the ground water relative to the minerals in the framework of the aquifer system. Principal reactions modifying the natural geochemical system include congruent dissolution of olivine, diopside, amorphous silica, and anhydrite; incongruent dissolution of labradorite with calcium montmorillonite as a residual product; precipitation of calcite and ferric oxyhydroxide; and oxidation of ferrous iron to ferric iron. Cation exchange reactions retard the downward movement of heavy, multivalent waste constituents where infiltration ponds are used for waste disposal.

Knobel, L.L.; Bartholomay, R.C.; Orr, B.R.

1997-05-01

37

BOISE RIVER STUDY IN ADA COUNTY IDAHO, 1978  

EPA Science Inventory

The purpose of this study was to assess the impact of present point sources on the river and to obtain background information to develop effluent limitations for the City of Boise wastewater treatment facilities. The study was conducted on the Boise River (Ada County, ID) from L...

38

Beta-thalassemia genes in French-Canadians: haplotype and mutation analysis of Portneuf chromosomes.  

PubMed Central

beta-Thalassemia minor occurs at approximately 1% frequency in French-Canadians--in families residing in Portneuf County (population approximately 40,000) of Quebec province. We found eight different RFLP haplotypes at the beta-globin gene cluster in 37 normal persons and in 12 beta-thalassemia heterozygotes from six families. beta-Thalassemia genes in these families associated with two haplotypes only: Mediterranean I and Mediterranean II. There were two different beta-thalassemia mutations segregating in the Portneuf population: an RNA processing mutation (beta(+)IVS-1,nt110) on haplotype I (five families) and a point mutation leading to chain termination (beta(0) nonsense codon 39) on haplotype II (one family). The distribution of 5' haplotypes on normal beta A Portneuf chromosomes compared with other European populations was most similar to that in British subjects (data for French subjects have not yet been reported). Genealogical reconstructions traced the ancestry of carrier couples to settlers emigrating from several different regions of France to New France in the 17th century. These findings indicate genetic diversity of a greater degree among French-Canadians than recognized heretofore. Images Figure 4

Kaplan, F; Kokotsis, G; DeBraekeleer, M; Morgan, K; Scriver, C R

1990-01-01

39

Bathymetric surveys of the Kootenai River near Bonners Ferry, Idaho, water year 2011  

USGS Publications Warehouse

In 2009, the Kootenai Tribe of Idaho released and implemented the Kootenai River Habitat Restoration Master Plan. This plan aimed to restore, enhance, and maintain the Kootenai River habitat and landscape to support and sustain habitat conditions for aquatic species and animal populations. In support of these restoration efforts, the U.S. Geological Survey, in cooperation with the Kootenai Tribe of Idaho, conducted high-resolution multibeam echosounder bathymetric surveys in May, June, and July 2011, as a baseline bathymetric monitoring survey on the Kootenai River near Bonners Ferry, Idaho. Three channel patterns or reaches exist in the study area—braided, meander, and a transitional zone connecting the braided and meander reaches. Bathymetric data were collected at three study areas in 2011 to provide: (1) surveys in unmapped portions of the meander reach; (2) monitoring of the presence and extent of sand along planned lines within a section of the meander reach; and (3) monitoring aggradation and degradation of the channel bed at specific cross sections within the braided reach and transitional zone. The bathymetric data will be used to update and verify flow models, calibrate and verify sediment transport modeling efforts, and aid in the biological assessment in support of the Kootenai River Habitat Restoration Master Plan. The data and planned lines for each study reach were produced in ASCII XYZ format supported by most geospatial software.

Fosness, Ryan L.

2013-01-01

40

The relation of Holocene fluvial terraces to changes in climate and sediment supply, South Fork Payette River, Idaho  

Microsoft Academic Search

Well-preserved Holocene terraces along the South Fork Payette River in central Idaho provide a record of fluvial system behavior in a steep mountain watershed characterized by weathered and erodible Idaho Batholith granitic rocks. Terrace deposit ages were provided by 14C dating of charcoal fragments and optically stimulated luminescence (OSL) dating of sandy sediments. Along with pairing of many terrace tread

Jennifer L. Pierce; Grant A. Meyer; Tammy Rittenour

2011-01-01

41

Big Game-Livestock Relationships on the Big Horn Sheep Winter Range, East Fork Salmon River, Idaho.  

National Technical Information Service (NTIS)

An historical record, description of habitat, and outline of winter range use patterns and relationships of bighorn sheep to mule deer and livestock are presented for the East Fork Salmon River, Idaho. Competition among bighorn sheep, mule deer, and cattl...

J. L. Lauer J. M. Peek

1976-01-01

42

Estimation of hydraulic properties and development of a layered conceptual model for the Snake River plain aquifer at the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

The Idaho INEL Oversight Program, in association with the University of Idaho, Idaho Geological Survey, Boise State University, and Idaho State University, developed a research program to determine the hydraulic properties of the Snake River Plain aquifer and characterize the vertical distribution of contaminants. A straddle-packer was deployed in four observation wells near the Idaho Chemical Processing Plant at the Idaho National Engineering Laboratory. Pressure transducers mounted in the straddle-packer assembly were used to monitor the response of the Snake River Plain aquifer to pumping at the ICPP production wells, located 2600 to 4200 feet from the observation wells. The time-drawdown data from these tests were used to evaluate various conceptual models of the aquifer. Aquifer properties were estimated by matching time-drawdown data to type curves for partially penetrating wells in an unconfined aquifer. This approach assumes a homogeneous and isotropic aquifer. The hydraulic properties of the aquifer obtained from the type curve analyses were: (1) Storativity = 3 x 10{sup -5}, (2) Specific Yield = 0.01, (3) Transmissivity = 740 ft{sup 2}/min, (4) Anisotropy (Kv:Kh)= 1:360.

Frederick, D.B.; Johnson, G.S.

1996-02-01

43

WATER QUALITY STUDY: MIDDLE SNAKE RIVER, IDAHO, 1970  

EPA Science Inventory

A water quality study of the Middle Snake River (17060103, 17060101, 17050201) was initiated in July 1968 to gather data in support of Department of the interior testimony presented before the Federal Power Commission license application hearings on High Mountain Sheep Dam. Unus...

44

Resource partitioning among forest owls in the River of No Return Wilderness, Idaho  

Microsoft Academic Search

We studied resource partitioning among the forest owls in the River of No Return Wilderness, Idaho, during the winter and spring of 1980 and 1981. The owl assemblage consisted of five abundant species: pygmy (Glaucidium gnoma), saw-whet (Aegolius acadicus), boreal (A. funereus), western screech (Otus kennicottii), and great-horned (Bubo virginianus). Long-eared (Asio otus) and flammulated (O. flammeolus) owls were rarely

G. D. Hayward; E. O. Garton

1988-01-01

45

THE VALUE OF SPORT FISHING IN THE SNAKE RIVER BASIN OF CENTRAL IDAHO  

Microsoft Academic Search

The value of sportfishing in the Snake River Basin in Central Idaho was measured using a two-stage\\/disequilibrium travel model. The two-stage\\/disequilibrium model does not require monetization of recreationists? travel time as required of traditional equilibrium labor market travel cost models. The model was estimated using Poisson regression, appropriate for count data when over-dispersion is absent, and adjusted for endogenous stratification

John R. McKean; Donn M. Johnson; R. Garth Taylor

2001-01-01

46

Ground-water quality in northern Ada County, lower Boise River basin, Idaho, 1985-96  

USGS Publications Warehouse

In October 1992, the U.S. Geological Survey (USGS), in cooperation with the Idaho Division of Environmental Quality, Boise Regional Office (IDEQ-BRO), began a comprehensive study of ground-water quality in the lower Boise River Basin. The study in northern Ada County has been completed, and this report presents selected results of investigations in that area. Results and discussion presented herein are based on information in publications listed under “References Cited” on the last page of this Fact Sheet.

Parliman, D. J.; Spinazola, Joseph M.

1998-01-01

47

Fish communities and related environmental conditions of the lower Boise River, southwestern Idaho, 1974-2004  

USGS Publications Warehouse

Within the last century, the lower Boise River has been transformed from a meandering, braided, gravel-bed river that supported large runs of salmon to a channelized, regulated, urban river that provides flood control and irrigation water to more than 1,200 square miles of land. An understanding of the current status of the river's fish communities and related environmental conditions is important to support the ongoing management of the Boise River. Therefore, fish community data from the U.S. Geological Survey and the Idaho Department of Fish and Game collected since 1974 were analyzed to describe the status of fish communities in the lower Boise River. Each set of data was collected to address different study objectives, but is combined here to provide an overall distribution of fish in the lower Boise River over the last 30 years. Twenty-two species of fish in 7 families have been identified in the lower Boise River-3 salmonidae, trout and whitefish; 2 cottidae, sculpins; 3 catostomidae, suckers; 7 cyprinidae, minnows; 4 centrarchidae, sunfish; 2 ictaluridae, catfish; and 1 cobitidae, loach. Analysis of fish community data using an Index of Biotic Integrity (IBI) for Northwest rivers shows a decrease in the biotic integrity in a downstream direction, with the lowest IBI near the mouth of the Boise River. The number of tolerant and introduced fish were greater in the lower reaches of the river. Changes in land use, habitat, and water quality, as well as regulated streamflow have affected the lower Boise River fish community. IBI scores were negatively correlated with maximum instantaneous water temperature, specific conductance, and suspended sediment; as well as the basin land-use metrics, area of developed land, impervious surface area, and the number of major diversions upstream of a site. Fish communities in the upstream reaches were dominated by piscivorous fish, whereas the downstream reaches were dominated by tolerant, omnivorous fish. The percentage of sculpin in the river decreased in a downstream direction, and sculpin disappear completely at sites downstream of Glenwood Bridge. The sculpin population increased downstream of the Lander wastewater-treatment facility within the last decade, possibly as a result of improved wastewater treatment. The condition of the mountain whitefish (Prosopium williamsoni) throughout the lower Boise River was good and was similar both to the condition of mountain whitefish from least-disturbed rivers in southern Idaho and to the North American standard weight for mountain whitefish.

MacCoy, Dorene E.

2006-01-01

48

Winter foraging ecology of bald eagles on a regulated river in southwest Idaho  

USGS Publications Warehouse

We studied Bald Eagle foraging ecology on the South Fork Boise River,Idaho, during the winters of 1990-92. We compared habitat variables at 29 foraging sites, 94 perch sites, and 131 random sites.Habitat variables included river habitat (pool, riffle, run), distance to the nearest change in river habitat, distance to nearest available perch, number and species of surrounding perches, and average river depth and flow. Eagles foraged more at pools than expected, and closer( (15 m) to changes in river habitat than expected. Where eagles foraged at riffles, those riffles were slower than riffles where they perched or riffles that were available at random. Where eagles foraged at runs, those runs were shallower than runs at either perch or random sites. Eagles perched less at riffles and more at sites where trees were available than expected. Changes in river habitat represent habitat edges where river depth and flow change, making fish more vulnerable to eagle predation. Fish are more susceptible to predation at shallower river depths and slower flows. Slower river flows may be related to decreased surface turbulence, which also increases vulnerability of fish to aerial predation.

Kaltenecker, Gregory S.; Steenhof, Karen; Bechard, Marc J.; Munger, James C.

1998-01-01

49

Bimodal basalt-rhyolite magmatism in the central and western Snake River Plain, Idaho and Oregon  

USGS Publications Warehouse

The purpose of this trip is to examine Miocene to Pleistocene basalt and rhyolite flows, ignimbrites and hypabyssal intrusions in a transect from the western Snake River Plain graben across the older part of the Snake River Plain "hot-spot-track." The earlier, dominantly explosive rhyolitic phase of volcanism will be examined primarily in the Cassia Mountains, near Twin Falls, Idaho. The second day of the field trip will focus on the Graveyard Point intrusion, a strongly differentiated diabase sill in easternmost Oregon. This late Tertiary sill is well exposed from floor to roof in sections up to 150 m thick, and is an example of the type of solidified shallow magma chamber that may be present beneath some Snake River Plain basalt volcanoes. The field trip will conclude with an examination of the diverse styles of effusive and explosive basaltic volcanism in the central and western Snake River Plain.

McCurry, M.; Bonnichsen, B.; White, C.; Godchaux, M. M.; Hughes, S. S.

1997-01-01

50

Capacity of the Diversion Channel Below the Flood-Control Dam on the Big Lost River at the Idaho National Engineering Laboratory, Idaho.  

National Technical Information Service (NTIS)

Stage-discharge relations were computed for two selected cross sections of a diversion channel at the Idaho National Engineering Laboratory for discharges between 2000 and 7200 cubic feet per second. The channel diverts water from the Big Lost River into ...

C. M. Bennett

1986-01-01

51

Characterization of Surface-Water/Ground-Water Interaction Along the Spokane River, Idaho and Washington  

NASA Astrophysics Data System (ADS)

Historical mining in the Coeur d'Alene River basin of northern Idaho has resulted in elevated concentrations of some trace metals (particularly Cd, Pb, and Zn) in water and sediments of Coeur d'Alene Lake and downstream in the Spokane River. On average during 1999 and 2000, about 20,000 kg/yr of whole-water lead (particulate plus dissolved), 2,100 kg/yr of whole-water cadmium, and 450,000 kg/yr of whole-water zinc flowed out of Coeur d'Alene Lake into the Spokane River. These elevated trace-metal concentrations in the Spokane River have raised concerns about potential contamination of ground water in the underlying Spokane Valley/Rathdrum Prairie aquifer, the primary source of drinking water for the city of Spokane and surrounding areas. A study conducted as part of the U.S. Geological Survey's National Water-Quality Assessment Program examined the interaction of the river and aquifer using hydrologic and chemical data along a losing reach of the Spokane River. The river and ground water were extensively monitored over a range of hydrologic conditions at 3 stream gages and 25 monitoring wells (including 18 wells installed for this study) ranging from 8 to 1,000 m from the river. River stage, ground-water level, water temperature, and specific conductance were measured hourly to biweekly, and water samples were collected 8 times. Additional regional ground-water data were collected from more than 190 wells within 5 km of the study reach. Hydrologic and chemical data indicate that the Spokane River recharges the Spokane Valley/Rathdrum Prairie aquifer along a 35-km reach between Coeur d'Alene Lake and Spokane. Ground-water levels in near-river (<125 m from the river) wells responded rapidly to variations in river stage and indicated the presence of an unsaturated zone beneath the river and a ground-water flow gradient away from the river. Chemical data indicated that river recharge may influence ground-water chemistry as far as 900 m from the river. The chemistry and temperature of river water and ground water from near-river wells were similar and exhibited similar temporal trends, whereas ground water from wells located farther from the river had higher ionic strength and more stable temperature and chemistry. Lag time between variations of water temperature and water chemistry in the river and response of near-river wells may prove useful for estimating ground-water velocity and time of travel of chemical constituents to and through the aquifer. Although concentrations of Cd and Pb were elevated in bed sediment, dissolved (<0.45 um) Cd and Pb were generally less than 1 ug/L in the river and ground water. Dissolved Zn concentrations were similar in near-river wells (17 to 71 ug/L) and the river (22 to 66 ug/L), but were less than detection levels in wells farther from the river. In 1999 and 2000, the dissolved Zn load in the Spokane River decreased by about 72,000 kg/yr, or 17%, within the losing reach from Post Falls to downstream from Spokane. Part of this Zn load likely is transported to and stored in the near-river zone of the aquifer because the Zn is not returned farther downstream near Spokane where the aquifer discharges to the river.

Caldwell, R. R.; Bowers, C. L.; Hein, K. L.

2002-12-01

52

Inventory and Monitoring of Bald Eagles and Other Raptorial Birds of the Snake River, Idaho (1998-2000).  

National Technical Information Service (NTIS)

The Snake River Bald Eagle and Raptor Project, a five-year effort, was initiated in 1994 with two primary objectives: (1) to monitor bald eagle productivity in Southeast Idaho, and (2) to develop a monitoring program for raptorial birds in the Snake River...

M. B. Whitfield

2000-01-01

53

Compressional Wave Velocity Structure of the Upper 350 km Under the Eastern Snake River Plain Near Rexburg, Idaho  

Microsoft Academic Search

Relative travel time residuals for teleseismic P and PKIKP are used to determine the compressional velocity structure under the eastern Snake River Plain at Rexburg, Idaho. Damped least squares inversion of travel time residuals (modified from the method of Aki) indicates a large body of 3.5 +2.5% low relative velocity material centered under the northwest edge of the Snake River

John R. Evans

1982-01-01

54

Movements of Adult Chinook Salmon during Spawning Migration in a Metals-Contaminated System, Coeur d'Alene River, Idaho  

Microsoft Academic Search

Spawning migration of adult male chinook salmon Oncorhynchus tshawytscha was monitored by radio telemetry to determine their response to the presence of metals contamination in the South Fork of the Coeur d'Alene River, Idaho. The North Fork of the Coeur d'Alene River is relatively free of metals contamination and was used as a control. In all, 45 chinook salmon were

J. N. Goldstein; D. F. Woodward; A. M. Farag

1999-01-01

55

Inventory and Monitoring of Bald Eagles and Other Raptorial Birds of the Snake River, Idaho. 1996-1997 Progress Report.  

National Technical Information Service (NTIS)

The Snake River Bald Eagle and Raptor Project, a five-year effort, was initiated in 1994 with two primary objectives: (1) to monitor bald eagle productivity in Southeast Idaho, and (2) to develop a monitoring program for raptorial birds in the Snake River...

M. B. Whitfield M. E. Maj

1998-01-01

56

LOWER COEUR D'ALENE RIVER, IDAHO. TOXICITY AND BIOAVAILABILITY STUDIES OF LEAD AND OTHER ELEMENTS, 1989  

EPA Science Inventory

This study was done following reported high waterfowl deaths and illnesses in the Coeur dAlene River and Lake system, Idaho (17010301, 17010303). Abundant evidence documents extensive contamination of the Lower Coeur dAlene River drainage with mining and milling wastes. The dep...

57

Thermal springs in the Payette River basin, west-central Idaho  

SciTech Connect

The Payette River basin, characterized by steep, rugged mountains and narrow river valleys, occupies an area of about 3300 square miles in west-central Idaho. Predominant rock types in the basin include granitic rocks of the Idaho batholith and basalt flows of the Columbia River Basalt Group. Waters from thermal springs in the basin, temperatures of which range from 34/sup 0/ to 86/sup 0/ Celsius, are sodium bicarbonate type and are slightly alkaline. Dissolved-solids concentrations range from 173 to 470 milligrams per liter. Reservoir temperatures determined from the sodium-potassium-calcium, silicic acid-corrected silica, and sulfate-water isotope geothermometers range from 53/sup 0/ to 143/sup 0/ Celsius. Tritium, present in concentrations between 0 and 2 tritium units, indicate that sampled thermal waters are at least 100 years and possibly more than 1000 years old. Stable-isotope data indicate it is unlikely any of the nonthermal waters sampled are representative of precipitation that recharges the thermal springs in the basin. Thermal springs discharged about 5700 acre-feet of water in 1979. Associated convective heat flux is 1.1 x 10/sup 7/ calories per second.

Lewis, R.E.; Young, H.W.

1980-10-01

58

Seismic facies, sedimentology, and significance of a lacustrine delta in Neogene Lake Idaho' deposits: Western Snake River Plain, Idaho and Oregon  

SciTech Connect

The top of a buried fine-grained delta system of paleo- Lake Idaho' is detected by high-resolution seismic profiles, 300 m beneath the western Snake River Plain near Caldwell, Idaho. Characteristic 3--5[degree] dip of seismic reflectors in the prodelta-mud facies plus electrical-resistivity logs and cuttings from a 670-m well show a 150-m coarsening-upward prodelta sequence overlain by well-sorted fine sand and thin mud layers. Slope and vertical relief (compaction corrected) of prodelta clinoforms indicate the delta was prograding north into a lake basin 250-m deep. Elevation of the top of the delta front is a measure of a paleolake stand. The detected buried delta front is presently at 405 m elevation, about 500 m below what is regarded as the last high lake stand (elev. 850--975 m). The present low elevation of the delta front is partly explained by about 300 m of downward tectonic movement on faults and about 200 m of subsidence by basin-sediment compaction with respect to the basin margins. Distribution of lake deposits around the northwest end of the lake indicates the lake level reached 850--975 m elevation about 2 million years ago. Location of the former outlet of Lake Idaho' and the ancestral Snake River is still a puzzle. Present geomorphology suggests that about 2 million years ago a southward-migrating, ancestral Hells Canyon tributary of the Columbia-Salmon Rivers system captured the lake drainage by overflow of a sill at Dead Indian Ridge near Weiser, Idaho. Hells Canyon and the enlarged Snake River subsequently cut down about 215 m to the present river elevation of 635 m at Dead Indian Ridge.

Wood, S.H. (Boise State Univ., ID (United States))

1993-04-01

59

Fluorite equilibria in thermal springs of the Snake River Basin, Idaho  

USGS Publications Warehouse

Some thermal water sources of the Snake River basin, Idaho, are near saturation with respect to fluorite. That mineral was identified by X-ray diffraction in precipitates induced in three water samples by adding sodium fluoride. The derived solubility product (KS0) for zero ionic strength was close to that calculated from Latimer's thermodynamic data (10-9.7 7). The relative ease of precipitation of fluorite from these water samples indicates that equilibrium with respect to fluorite may occur in some ground-water systems.

Roberson, C. E.; Schoen, Robert

1973-01-01

60

Snake River Plain, Idaho: Representative of a new category of volcanism  

SciTech Connect

Studies of the volcanic geology of the Snake River Plain, Idaho, and comparison with other basaltic regions suggest a new category of volcanic activity, termed basaltic plains volcanism. Typified by the Snake River Plain, this style of volcanism is intermediate between basaltic flood (or plateau) eruptions and Hawaiian volcanism. Characteristics that are common to both Hawaiian and plains volcanism are: multiple lava flow units which erupt primarily from point sources, formation of low shields, and frequent emplacement through lava tubes channels. Characteristics that are common to both flood basalts and plains volcanism are: high volume flows, vents aligned along rift zones, and planar surfaces. The recognition of plains in other areas provides a means to interpret the style of eruption and volcanic history.

Greeley, R.

1982-04-10

61

Salmon Supplementation Studies in Idaho Rivers, 1999-2000 Progress Report.  

SciTech Connect

As part of the Idaho Supplementation Studies, fisheries crews from the Shoshone-Bannock Tribes have been snorkeling tributaries of the Salmon River to estimate chinook salmon (Oncorhynchus tshawytscha) parr abundance; conducting surveys of spawning adult chinook salmon to determine the number of redds constructed and collect carcass information; operating a rotary screw trap on the East Fork Salmon River and West Fork Yankee Fork Salmon River to enumerate and PIT-tag emigrating juvenile chinook salmon; and collecting and PIT-tagging juvenile chinook salmon on tributaries of the Salmon River. The Tribes work in the following six tributaries of the Salmon River: Bear Valley Creek, East Fork Salmon River, Herd Creek, South Fork Salmon River, Valley Creek, and West Fork Yankee Fork Salmon River. Snorkeling was used to obtain parr population estimates for ISS streams from 1992 to 1997. However, using the relatively vigorous methods described in the ISS experimental design to estimate summer chinook parr populations, results on a project-wide basis showed extraordinarily large confidence intervals and coefficients of variation. ISS cooperators modified their sampling design over a few years to reduce the variation around parr population estimates without success. Consequently, in 1998 snorkeling to obtain parr population estimates was discontinued and only General Parr Monitoring (GPM) sites are snorkeled. The number of redds observed in SBT-ISS streams has continued to decline as determined by five year cycles. Relatively weak strongholds continue to occur in the South Fork Salmon River and Bear Valley Creek. A rotary screw trap was operated on the West Fork Yankee Fork during the spring and fall of 1999 and the spring of 2000 to monitor juvenile chinook migration. A screw trap was also operated on the East Fork of the Salmon River during the spring and fall from 1993 to 1997 and 1999 (fall only) to 2000. Significant supplementation treatments have occurred in the South Fork Salmon River (IDFG). The East Fork Salmon River received supplementation treatments yearly through 1995. There have been no treatments since 1995, and no significant future treatments from local broodstock are conceivable due to extremely poor escapement. The West Fork Yankee Fork received a single presmolt treatment in 1994. Similarly, no significant future treatments are planned for the WFYF due to extremely poor escapement. However, small scale experimental captive rearing and broodstock techniques are currently being tested with populations from the EFSR and WFYF. Captive rearing/broodstock techniques could potentially provide feedback for evaluation of supplementation. The other three SBT-ISS streams are control streams and do not receive hatchery treatments.

Kohler, Andy; Taki, Doug; Teton, Angelo

2001-11-01

62

Estimating Post-Wildfire Catchment Sediment Budgets, South Fork Salmon River, Idaho  

NASA Astrophysics Data System (ADS)

Fire is an important agent of hydrological, biological and geomorphological change in Idaho forests. Vegetation mortality, loss of root strength, and increased soil hydrophobicity contribute to increase post-fire hillslope erosion rates. Over longer time scales, warmer, drier periods are linked to more frequent forest fires, which in turn helps to drive long-term sediment flux. Increasing annual temperature and drought occurrence associated with current climate change have the potential to amplify forest fire frequency and severity, and thus to increase hillslope erosion rates. Hillslope erosion rates affect forest vegetation recovery and the sediment supplied to channels, which impacts aquatic habitat and downstream reservoir longevity. Severe fires in 2007 on the Payette National Forest, Idaho, affected much of the South Fork Salmon River basin. This research estimates the quantity of sediment delivered to the channel of a small catchment within the South Fork Salmon River basin. For this event, sediment volumes delivered by landslides and debris flows were measured using ground surveys, and overland flow input is being measured using 210Pb and 137Cs soil profiles. Our results suggest that in the absence of major landslides or debris flows, the contribution of overland flow may be a major component of post-wildfire sediment budgets in steep alluvial valleys. Basin-wide disturbances like the 2007 fires have the potential to contribute substantially to long-term catchment-scale sediment budgets, and may occur more frequently as an effect of current climate change.

Perreault, L. M.; Yager, E. M.; Aalto, R. E.

2009-12-01

63

Adult Chinook Salmon Abundance Monitoring in the Secesh River and Lake Creek, Idaho, 2000 Annual Report.  

SciTech Connect

Underwater time-lapse video technology has been used to monitor adult spring and summer chinook salmon (Oncorhynchus tshawytscha) escapement into the Secesh River and Lake Creek, Idaho, since 1998. Underwater time-lapse videography is a passive methodology that does not trap or handle this Endangered Species Act listed species. Secesh River chinook salmon represent a wild spawning aggregate that has not been directly supplemented with hatchery fish. The Secesh River is also a control population under the Idaho Salmon Supplementation study. This project has demonstrated the successful application of underwater video adult salmon abundance monitoring technology in Lake Creek in 1998 and 1999. Emphasis of the project in 2000 was to determine if the temporary fish counting station could be installed early enough to successfully estimate adult spring and summer chinook salmon abundance in the Secesh River (a larger stream). Snow pack in the drainage was 93% of the average during the winter of 1999/2000, providing an opportunity to test the temporary count station structure. The temporary fish counting station was not the appropriate technology to determine adult salmon spawner abundance in the Secesh River. Due to its temporary nature it could not be installed early enough, due to high stream discharge, to capture the first upstream migrating salmon. A more permanent structure used with underwater video, or other technology needs to be utilized for accurate salmon escapement monitoring in the Secesh River. A minimum of 813 adult chinook salmon spawners migrated upstream past the Secesh River fish counting station to spawning areas in the Secesh River drainage. Of these fish, more than 324 migrated upstream into Lake Creek. The first upstream migrating adult chinook salmon passed the Secesh River and Lake Creek sites prior to operation of the fish counting stations on June 22. This was 17 and 19 days earlier than the first fish arrival at Lake Creek in 1998 and 1999 respectively. Peak net upstream adult movement at the Secesh River site occurred June 28 and at the Lake Creek site on June 27. Peak of total movement was August 16 at Secesh River and August 7 at Lake Creek. The last fish passed through the Lake Creek fish counting station on August 31 and on September 8 at the Secesh River site. Migrating salmon in the Secesh River and Lake Creek exhibited two behaviorally distinct segments of fish movement. The first segment of movement was characterized, mainly, by upstream movement only. The second segment consisted of upstream and downstream movement with very little net upstream movement. The fish counting stations did not impede salmon movements, nor was spawning displaced downstream. Fish moved freely upstream and downstream through the fish counting structures. Fish movement was greatest between the period of 5:00 p.m. and 4:00 a.m. There appeared to be a segment of ''nomadic'' males that moved into and out of the spawning area, apparently seeking other mates to spawn with. The downstream movement of salmon allowed by this fish counting station design may be an important factor affecting reproductive success as male salmon seek other females to spawn with. Traditional weirs operated for broodstock collection do not allow for downstream movement of adults. This methodology has the potential to provide more consistent and accurate salmon spawner abundance information than single-pass and multiple-pass spawning ground surveys. Accurate adult abundance would allow managers to determine if recovery actions were benefiting these salmon spawning aggregates and if recovery goals were being met.

Faurot, Dave; Kucera, Paul A.

2001-05-01

64

Pennsylvanian and Permian paleogeography of south-central Idaho: The Wood River basin  

SciTech Connect

The Sun Valley Assemblage (Wood River, Dollarhide, and Grand Prize formations) was deposited in the Wood Rover basin in what is now south-central Idaho, north of the Snake River Plain, from the Atokan to Wolfcampian and Leonardian( ). Atokan and Des Moinesian deposition occurred in braided deltas and overlying clear water carbonate shoals. The rocks of this depositional system vary in thickness from tens to several hundreds of meters reflecting irregularities in the erosional surface on the underlying foundered Antler highland. This basal unconformity has been sheared during Mesozoic and Paleogene deformation. Significant regional subsidence of the Wood River basin began in the Des Moinesian, was most rapid in the Virgilian, and slowed in the Wolfcampian, resulting in total thickness of over 2,000 m for each of the three formations. In the central part of the basin (Wood River Formation) a sub-wave-base ramp system with southeastern paleoslope was fed by turbidite flows of mixed carbonate-siliciclastic fine-grained sediment that had been thoroughly mixed on a shelf area to the north and east. The carbonate fraction may have been derived from the Snaky Canyon Formation carbonate platform to the east. To the north, a siliciclastic fan or ramp system (Grand Prize Formation) was present. Virgilian and Wolfcampian strata represent highstand systems tracts and a lowstand tract is present in strata deposited near the Virgilian-Wolfcampian boundary.

Mahoney, J.B. (Univ. of British Columbia, Vancouver (Canada)); Burton, B.R. (Norcen Energy Resources Ltd., Calgary, Alberta (Canada)); O'Brien, J.P.; Link, P.K. (Idaho State Univ., Pocatello (United States))

1991-02-01

65

Electrofishing effort required to estimate biotic condition in Southern Idaho Rivers  

USGS Publications Warehouse

An important issue surrounding biomonitoring in large rivers is the minimum sampling effort required to collect an adequate number of fish for accurate and precise determinations of biotic condition. During the summer of 2002, we sampled 15 randomly selected large-river sites in southern Idaho to evaluate the effects of sampling effort on an index of biotic integrity (IBI). Boat electrofishing was used to collect sample populations of fish in river reaches representing 40 and 100 times the mean channel width (MCW; wetted channel) at base flow. Minimum sampling effort was assessed by comparing the relation between reach length sampled and change in IBI score. Thirty-two species of fish in the families Catostomidae, Centrarchidae, Cottidae, Cyprinidae, Ictaluridae, Percidae, and Salmonidae were collected. Of these, 12 alien species were collected at 80% (12 of 15) of the sample sites; alien species represented about 38% of all species (N = 32) collected during the study. A total of 60% (9 of 15) of the sample sites had poor IBI scores. A minimum reach length of about 36 times MCW was determined to be sufficient for collecting an adequate number of fish for estimating biotic condition based on an IBI score. For most sites, this equates to collecting 275 fish at a site. Results may be applicable to other semiarid, fifth-order through seventh-order rivers sampled during summer low-flow conditions. ?? Copyright by the American Fisheries Society 2007.

Maret, T. R.; Ott, D. S.; Herlihy, A. T.

2007-01-01

66

Geophysical logging case history of the Raft River geothermal system, Idaho  

SciTech Connect

Drilling to evaluate the geothermal resource in the Raft River Valley began in 1974 and resulted in the discovery of a geothermal reservoir at a depth of approximately 1523 m (500 ft). Several organizations and companies have been involved in the geophysical logging program. There is no comprehensive report on the geophysical logging, nor has there been a complete interpretation. The objectives of this study are to make an integrated interpretation of the available data and compile a case history. Emphasis has been on developing a simple interpretation scheme from a minimum of data sets. The Raft River geothermal system occurs in the Raft River Valley, which is a portion of the Basin and Range geomorphic province located in south central Idaho, south of the Snake River Plain. The valley is a late Cenozoic structural downwarp bounded by faults on the west, south, and east. The downwarp is filled with Tertiary and Paleozoic sediments, metasediments, and volcanics that overlie Precambrian rocks. The variety of rock types, the presence of alteration products, and the variability of fracturing make reliable interpretations difficult. However, the cross plotting of various parameters has allowed a determination of rock types and an analysis of the degree of alteration and the density of fractures. Thus, one can determine the relevant data necessary to assess a geothermal reservoir in similar rock types and use cross plots to potentially define the producing zones.

Applegate, J.K.; Moens, T.A.

1980-04-01

67

Depth and temporal variations in water quality of the Snake River Plain aquifer in well USGS59 near the Idaho Chemical Processing Plant at the Idaho National Engineering and Environmental Laboratory  

Microsoft Academic Search

In-situ measurements of the specific conductance and temperature of ground water in the Snake River Plain aquifer were collected in observation well USGS-59 near the Idaho Chemical Processing Plant at the Idaho National Engineering and Environmental Laboratory. These parameters were monitored at various depths in the aquifer from October 1994 to August 1995. The specific conductance of ground water in

D. B. Frederick; G. S. Johnson

1997-01-01

68

Lead accumulation and osprey production near a mining site on the coeur d'Alene River, Idaho  

Microsoft Academic Search

Mining and smelting at Kellogg-Smelterville, Idaho, resulted in high concentrations of lead in Coeur d'Alene (CDA) River sediments 15–65 km downstream, where ospreys (Pandion haliaetus) nested. Adult and nestling ospreys living along the CDA River had significantly higher blood lead concentrations than those at Lake Coeur d'Alene (intermediate area) or Pend Oreille and Flathead Lakes (reference areas). Lead concentrations in

Charles J. Henny; Lawrence J. Blus; David J. Hoffman; Robert A. Grove; Jeff S. Hatfield

1991-01-01

69

Preliminary evaluation of materials for fluidized bed technology in geothermal wells at Raft River, Idaho, and East Mesa, California  

Microsoft Academic Search

Corrosion tests of candidate materials for heat exchangers using liquid fluidized bed technology were conducted at the U.S. Department of Energy's geothermal wells at Raft River, Idaho, and at the Geothermal Components Test Facility (GCTF) in East Mesa, Calif. These investigations deal with moderate temperature ranges of 135 to 163 \\/degree\\/C for electrical generation and nonelectrical applications. The corrosion, erosion,

W. J. Dirk; C. A. Allen; R. E. McAtee

1980-01-01

70

Inventory and Monitoring of Bald Eagles and Other Raptorial Birds of the Snake River, Idaho, April 1995.  

National Technical Information Service (NTIS)

The South Fork Raptor Project, a five-year effort, was initiated in 1994 with two primary objectives: (1) to monitor bald eagle productivity in southeast Idaho, and (2) to develop a monitoring program for all raptors in the Snake River study area. In 1994...

M. B. Whitfield P. Munholland M. E. Maj

1995-01-01

71

Inventory and Monitoring of Bald Eagles and Other Raptorial Birds of the Snake River, Idaho. 1995 Progress Report.  

National Technical Information Service (NTIS)

The Snake River Raptor Project, a five-year effort, was initiated in 1994, with two primary objectives: (1) to monitor bald eagle productivity in Southeast Idaho, and (2) to develop a monitoring program for raptorial birds in the study area. The Snake Riv...

M. B. Whitfield M. E. Maj

1996-01-01

72

WATER QUALITY ASSESSMENT OF THE UPPER SNAKE RIVER BASIN, IDAHO AND WESTERN WYOMING - ENVIRONMENTAL SETTING, 1980-92.  

EPA Science Inventory

Data summarized in this report are used in companion reports to help define the relations among land use, water use, water quality, and biological conditions. The upper Snake River Basin (1704) is located in southeastern Idaho and northwestern Wyoming and includes small parts of...

73

Bedrock erosion in the lower Big Wood River channel, southcentral Idaho  

SciTech Connect

The Big Wood River, which is fed from the mountains to the north of the Snake River Plain, cuts through 0.8 m.y. old basalt in an area north and east of Shoshone, Idaho. The basalt channel carved by the Big Wood River exhibits remarkable and unusual bedrock erosional features. Approximately 10,000 years ago, nearby Black Butte shield volcano erupted basaltic lave which rerouted the Big Wood River. At the time the new river channel formed 10,000 years ago, alpine glaciers in the mountains were also beginning to melt. High flows of water from the melting glaciers during the next few thousand years carried large sediment loads and were instrumental in developing the spectacular potholes now found in the channel. Most of the scouring agents are pebbles and cobbles derived from quartzite, granitic, and gneissic rocks. As potholes began to develop, they were closely spaced and generally less than 1 m apart. However, as the potholes enlarged and expanded both horizontally and vertically, they coalesced with one another. The merging process occurred when the walls of two or more adjacent potholes were breached by the outward expansion of each pothole. The deeper of the two potholes captured the pebbles of the adjacent pothole. When pebbles are captured, pothole growth is terminated and the more shallow pothole was gradually cannibalized. All of the features within the channel are overprinted with a strong asymmetry caused by the current-driven pebbles against the upstream side of the features. Consequently, the upstream side of the features tends to be smooth, convex and rounded; whereas, the downstream side tends to be concave with the leading edge of the feature pointing in the downstream direction.

Maley, T.S.; Oberlindacher, P. (Bureau of Land Management, Boise, ID (United States))

1993-04-01

74

Hydrochemistry of selected parameters at the Raft River KGRA, Cassia County, Idaho  

SciTech Connect

Low to moderate temperature (< 150/sup 0/C) geothermal fluids are being developed in the southern Raft River Valley of Idaho. Five deep geothermal wells ranging in depth from 4911 feet to 6543 feet (1490 to 1980 meters) and two intermediate depth (3858 feet or 1170 meters) injection wells have been drilled within the Raft River KGRA. Several shallower (1423-500 feet or 430-150 meters) wells have also been constructed to monitor the environmental effects of geothermal development of the shallower aquifer systems. Sampling of water from wells within the KGRA has been conducted since the onset of the project in 1974. Five analytical laboratories have conducted analyses on waters from the KGRA. Charge-balance error calculations conducted on the data produced from these laboratories indicated that data from three laboratories were reliable while two were not. A method of equating all data was established by using linear regression analyses on sets of paired data from various laboratories. The chemical data collected from the deep geothermal wells indicates that a two reservoir system exists within the Raft River KGRA. Each reservoir is associated with a major structural feature. These features are known as the Bridge Fault System (BFS) and the Narrows Structure (NS).

Graham, D.L.; Ralston, D.R.; Allman, D.W.

1981-01-01

75

Hydrothermal Injection Program: Raft River (KGRA) Idaho, 1982 test data index  

SciTech Connect

Presented is an index for the Hydrothermal Injection Program test data collected over a three-month testing and monitoring period, starting September 1, 1982 at the Raft River Geothermal Site located in Southern Idaho. The test program consisted of injecting tracer solutions into a geothermal well, and the withdrawing the fluid from the same well, either immediately, or after a quiescent period. These data, stored on tape at the National Technical Information Service (NTIS), US Department of Commerce, Springfield, Virginia, consist of concentrations of injected tracer solutions, natural water chemistry, wellhead temperature, pressure and flow, downhole temperature and conductivity, caliper and spinner data along with wellhead pressure responses of the monitoring wells. The stored data have been screened to ensure that they are reasonable and internally consistent.

Freiburger, R.M.; Hull, L.C.; Clemo, T.M.

1985-04-01

76

Resistivity measurements before and after injection Test 5 at Raft River KGRA, Idaho. Final report  

SciTech Connect

Resistivity measurements were made prior to, and after an injection test at Raft River KGRA, Idaho. The objectives of the resistivity measurements were to determine if measureable changes could be observed and whether they could be used to infer the direction of fluid flow. Most of the apparent resistivity changes observed after the injection phase of Test 5 are smaller than the estimated standard deviation of the measurements. However, the contour map of the changes suggest an anomalous trend to the northeast which is similar to the trend in the self-potential data. The numerical modeling of the resistivity data is marginal for changes as small as those observed but the results suggest that changes of a few percent could be expected from a fracture zone extending from depth to within 100 m of the surface.

Sill, W.R.

1983-09-01

77

Interpretation of self-potential measurements during injection tests at Raft River, Idaho. Final report  

SciTech Connect

Self-potential measurements before and during injection tests at Raft River KGRA, Idaho indicate a small negative change. The magnitude of the change (5 to 10 mV) is near the noise level (5 mV) but they extend over a fairly broad area. The presence of a cathodic protection system clouds the issue of the validity of the changes, however the form of the observed changes cannot be explained by any simple change in the current strength of the protection system. Furthermore, similar changes are observed for two separate tests, months apart. Modeling of the changes indicate that they are likely caused by a fracture extending from the reservoir (1400 m) to close to the surface.

Sill, W.R.

1983-09-01

78

Geology and geomorphology of Bear Lake Valley and upper Bear River, Utah and Idaho  

USGS Publications Warehouse

Bear Lake, on the Idaho-Utah border, lies in a fault-bounded valley through which the Bear River flows en route to the Great Salt Lake. Surficial deposits in the Bear Lake drainage basin provide a geologic context for interpretation of cores from Bear Lake deposits. In addition to groundwater discharge, Bear Lake received water and sediment from its own small drainage basin and sometimes from the Bear River and its glaciated headwaters. The lake basin interacts with the river in complex ways that are modulated by climatically induced lake-level changes, by the distribution of active Quaternary faults, and by the migration of the river across its fluvial fan north of the present lake. The upper Bear River flows northward for ???150 km from its headwaters in the northwestern Uinta Mountains, generally following the strike of regional Laramide and late Cenozoic structures. These structures likely also control the flow paths of groundwater that feeds Bear Lake, and groundwater-fed streams are the largest source of water when the lake is isolated from the Bear River. The present configuration of the Bear River with respect to Bear Lake Valley may not have been established until the late Pliocene. The absence of Uinta Range-derived quartzites in fluvial gravel on the crest of the Bear Lake Plateau east of Bear Lake suggests that the present headwaters were not part of the drainage basin in the late Tertiary. Newly mapped glacial deposits in the Bear River Range west of Bear Lake indicate several advances of valley glaciers that were probably coeval with glaciations in the Uinta Mountains. Much of the meltwater from these glaciers may have reached Bear Lake via groundwater pathways through infiltration in the karst terrain of the Bear River Range. At times during the Pleistocene, the Bear River flowed into Bear Lake and water level rose to the valley threshold at Nounan narrows. This threshold has been modified by aggradation, downcutting, and tectonics. Maximum lake levels have decreased from as high as 1830 m to 1806 m above sea level since the early Pleistocene due to episodic downcutting by the Bear River. The oldest exposed lacustrine sediments in Bear Lake Valley are probably of Pliocene age. Several high-lake phases during the early and middle Pleistocene were separated by episodes of fluvial incision. Threshold incision was not constant, however, because lake highstands of as much as 8 m above bedrock threshold level resulted from aggradation and possibly landsliding at least twice during the late-middle and late Pleistocene. Abandoned stream channels within the low-lying, fault-bounded region between Bear Lake and the modern Bear River show that Bear River progressively shifted northward during the Holocene. Several factors including faulting, location of the fluvial fan, and channel migration across the fluvial fan probably interacted to produce these changes in channel position. Late Quaternary slip rates on the east Bear Lake fault zone are estimated by using the water-level history of Bear Lake, assuming little or no displacement on dated deposits on the west side of the valley. Uplifted lacustrine deposits representing Pliocene to middle Pleistocene highstands of Bear Lake on the footwall block of the east Bear Lake fault zone provide dramatic evidence of long-term slip. Slip rates during the late Pleistocene increased from north to south along the east Bear Lake fault zone, consistent with the tectonic geomorphology. In addition, slip rates on the southern section of the fault zone have apparently decreased over the past 50 k.y. Copyright ?? 2009 The Geological Society of America.

Reheis, M. C.; Laabs, B. J. C.; Kaufman, D. S.

2009-01-01

79

Use of multidimensional modeling to evaluate a channel restoration design for the Kootenai River, Idaho  

USGS Publications Warehouse

River channel construction projects aimed at restoring or improving degraded waterways have become common but have been variously successful. In this report a methodology is proposed to evaluate channel designs before channels are built by using multidimensional modeling and analysis. This approach allows detailed analysis of water-surface profiles, sediment transport, and aquatic habitat that may result if the design is implemented. The method presented here addresses the need to model a range of potential stream-discharge and channel-roughness conditions to best assess the function of the design channel for a suite of possible conditions. This methodology is demonstrated by using a preliminary channel-restoration design proposed for a part of the Kootenai River in northern Idaho designated as critical habitat for the endangered white sturgeon (Acipenser transmontanus) and evaluating the design on the basis of simulations with the Flow and Sediment Transport with Morphologic Evolution of Channels (FaSTMECH) model. This evaluation indicated substantial problems with the preliminary design because boundary conditions used in the design were inconsistent with best estimates of future conditions. As a result, simulated water-surface levels did not meet target levels that corresponded to the designed bankfull surfaces; therefore, the flood plain would not function as intended. Sediment-transport analyses indicated that both the current channel of the Kootenai River and the design channel are largely unable to move the bed material through the reach at bankfull discharge. Therefore, sediment delivered to the design channel would likely be deposited within the reach instead of passing through it as planned. Consequently, the design channel geometry would adjust through time. Despite these issues, the design channel would provide more aquatic habitat suitable for spawning white sturgeon (Acipenser transmontanus) at lower discharges than is currently available in the Kootenai River. The evaluation methodology identified potential problems with the design channel that can be addressed through design modifications to better meet project objectives before channel construction.

Logan, B. L.; McDonald, R. R.; Nelson, J. M.; Kinzel, P. J.; Barton, G. J.

2011-01-01

80

Can superior natural amenities create high-quality employment opportunities? The case of nonconsumptive river recreation in central Idaho  

USGS Publications Warehouse

Central Idaho has superior environmental amenities, as evidenced by exceptionally high-value tourism, such as guided whitewater rafting. The focus of our study concerns the attainment of high-quality jobs in a high-quality natural environment. We estimate cumulative wage rate effects unique to nonconsumptive river recreation in central Idaho for comparison with other sectors. The cumulative effects are based on a detailed survey of recreation spending and a modified synthesized input-output model. Cumulative wage rate effects support using the abundance of environmental amenities to expand and attract high-wage, environmentally sensitive firms, as opposed to expanded tourism to improve employment quality. Copyright ?? 2005 Taylor & Francis Inc.

McKean, J. R.; Johnson, D. M.; Johnson, R. L.; Taylor, R. G.

2005-01-01

81

Salmon Supplementation Studies in Idaho Rivers, 1996-1998 Progress Report.  

SciTech Connect

Information contained in this report summarizes the work that has been done by the Shoshone-Bannock Tribes Fisheries Department under BPA Project No. 89-098-3, Contract Number 92-BI-49450. Relevant data generated by the Shoshone-Bannock Tribe will be collated with other ISS cooperator data collected from the Salmon and Clearwater rivers and tributary streams. A summary of data presented in this report and an initial project-wide level supplementation evaluation will be available in the ISS 5 year report that is currently in progress. The Shoshone-Bannock Tribal Fisheries Department is responsible for monitoring a variety of chinook salmon (Oncorhynchus tshawytscha) production parameters as part of the Idaho Supplementation Studies (BPA Project No. 89-098-3, Contract Number 92-BI-49450). Parameters include parr abundance in tributaries to the upper Salmon River; adult chinook salmon spawner abundance, redd counts, and carcass collection. A rotary screw trap is operated on the East Fork Salmon River and West Fork Yankee Fork Salmon River to enumerate and PIT-tag chinook smolts. These traps are also used to monitor parr movement, and collect individuals for the State and Tribal chinook salmon captive rearing program. The SBT monitors fisheries parameters in the following six tributaries of the Salmon River: Bear Valley Creek, East Fork Salmon River, Herd Creek, South Fork Salmon River, Valley Creek, and West Fork Yankee Fork. Chinook populations in all SBT-ISS monitored streams continue to decline. The South Fork Salmon River and Bear Valley Creek have the strongest remaining populations. Snorkel survey methodology was used to obtain parr population estimates for ISS streams from 1992 to 1997. Confidence intervals for the parr population estimates were large, especially when the populations were low. In 1998, based on ISS cooperator agreement, snorkeling to obtain parr population estimates was ceased due to the large confidence intervals. A rotary screw trap was operated on the West Fork Yankee Fork during the spring, summer, and fall of 1998 to monitor juvenile chinook migration. A screw trap was also operated on the East Fork of the Salmon River during the spring and fall from 1993 to 1997. Supplementation treatments have occurred on the South Fork Salmon River (IDFG), the East Fork Salmon River (EFSR), and the West Fork Yankee Fork of the Salmon River (WFYF). The EFSR received supplementation treatments yearly through 1995. There have been no treatments since 1995, and no significant future treatments from local broodstock are planned due to extremely poor escapement. The WFYF received a single presmolt treatment in 1994. There was an egg and adult release treatment in 1998 from the captive rearing program, not part of the original ISS study. Similarly, no significant future treatments are planned for the West Fork Yankee Fork due to extremely poor escapement. However, small scale experimental captive rearing and broodstock techniques are currently being tested with populations from the EFSR and WFYF. Captive rearing/broodstock techniques could potentially provide feedback for evaluation of supplementation. The other three SBT-ISS streams are control streams and do not receive supplementation treatments.

Reighn, Christopher A.; Lewis, Bert; Taki, Doug

1999-06-01

82

Geothermal resource analysis in the Big Wood River Valley, Blaine County, Idaho  

SciTech Connect

A geochemical investigation of both thermal and nonthermal springs in the Wood River area was conducted to determine possible flowpaths, ages of the waters, and environmental implications. Seven thermal springs and five cold springs were sampled for major cations and anions along with arsenic, lithium, boron, deuterium and oxygen-18. Eight rocks, representative of outcrops at or near the thermal occurrences were sampled and analyzed for major and trace elements. The Wood River area hydrothermal springs are dilute Na-HCO{sub 3}-SiO{sub 2} type waters. Calculated reservoir temperatures do not exceed 100{degree}C, except for Magic Hot Springs Landing well (108{degree}C with Mg correction). The isotope data suggest that the thermal water is not derived from present-day precipitation, but from precipitation when the climate was much colder and wetter. Intrusive igneous rocks of the Idaho batholith have reacted with the hydrothermal fluids at depth. The co-location of the thermal springs and mining districts suggests that the structures acting as conduits for the present-day hydrothermal fluids were also active during the emplacement of the ore bodies.

Street, L.V.

1990-10-01

83

PHYSICAL AND CHEMICAL WATER QUALITY OF THE SPOKANE RIVER OUTLET REACH OF LAKE COEUR D'ALENE, KOOTENAI COUNTY, IDAHO. 1990 AND 1991  

EPA Science Inventory

The University of Idaho conducted a water quality study on the Spokane River outlet arm of Lake Coeur dAlene (17010305, 17010303) from June 1990 through September 1991. Objectives of the study were: to characterize baseline river water quality; to determine seasonal river water ...

84

Steelhead Supplementation Studies; Steelhead Supplementation in Idaho Rivers, Annual Report 2002.  

SciTech Connect

The Steelhead Supplementation Study (SSS) has two broad objectives: (1) investigate the feasibility of supplementing depressed wild and natural steelhead populations using hatchery populations, and (2) describe the basic life history and genetic characteristics of wild and natural steelhead populations in the Salmon and Clearwater Basins. Idaho Department of Fish and Game (IDFG) personnel stocked adult steelhead from Sawtooth Fish Hatchery into Frenchman and Beaver creeks and estimated the number of age-1 parr produced from the outplants since 1993. On May 2, 2002, both Beaver and Frenchman creeks were stocked with hatchery adult steelhead. A SSS crew snorkeled the creeks in August 2002 to estimate the abundance of age-1 parr from brood year (BY) 2001. I estimated that the yield of age-1 parr per female stocked in 2001 was 7.3 and 6.7 in Beaver and Frenchman creeks, respectively. SSS crews stocked Dworshak hatchery stock fingerlings and smolts from 1993 to 1999 in the Red River drainage to assess which life stage produces more progeny when the adults return to spawn. In 2002, Clearwater Fish Hatchery personnel operated the Red River weir to trap adults that returned from these stockings. Twelve PIT-tagged adults from the smolt releases and one PIT-tagged adult from fingerling releases were detected during their migration up the mainstem Columbia and Snake rivers, but none from either group were caught at the weir. The primary focus of the study has been monitoring and collecting life history information from wild steelhead populations. An adult weir has been operated annually since 1992 in Fish Creek, a tributary of the Lochsa River. The weir was damaged by a rain-on-snow event in April 2002 and although the weir remained intact, some adults were able to swim undetected through the weir. Despite damage to the weir, trap tenders captured 167 adult steelhead, the most fish since 1993. The maximum likelihood estimate of adult steelhead escapement was 242. A screw trap has been operated annually in Fish Creek since 1994 to estimate the number of emigrating parr and smolts. I estimated that 18,687 juvenile steelhead emigrated from Fish Creek in 2002, the lowest number of migrants since 1998. SSS crews snorkeled three streams in the Selway River drainage and 10 streams in the Lochsa River drainage to estimate juvenile steelhead densities. The densities of age-1 steelhead parr declined in all streams compared to the densities observed in 2001. The age-1 densities in Fish Creek and Gedney Creek were the lowest observed since this project began monitoring those populations in 1994. The SSS crews and other cooperators tagged more than 12,000 juvenile steelhead with passive integrated transponder (PIT) tags in 2002. In 2002, technicians mounted and aged steelhead scales that were collected from 1998 to 2001. A consensus was reached among technicians for age of steelhead juveniles from Fish Creek. Scales that were collected in other streams were aged by at least one reader; however, before a final age is assigned to these fish, the age needs to be verified by another reader and any age differences among readers resolved. Dr. Jennifer Nielsen, at the U.S. Geological Survey Alaska Biological Science Center, Anchorage continued the microsatellite analysis of the steelhead tissue samples that were collected from Idaho streams in 2000. Two thousand eighteen samples from 40 populations were analyzed. The analysis of the remaining 39 populations is continuing.

Byrne, Alan

2003-03-01

85

Straddle-packer aquifer test analyses of the Snake River Plain aquifer at the Idaho National Engineering Laboratory  

SciTech Connect

The State of Idaho INEL Oversight Program, with the University of Idaho, Idaho State University, Boise State University, and the Idaho Geologic Survey, used a straddle-packer system to investigate vertical variations in characteristics of the Snake River Plain aquifer at the Idaho National Engineering Laboratory in southeast Idaho. Sixteen single-well aquifer tests were conducted on.isolated intervals in three observation wells. Each of these wells has approximately 200 feet of open borehole below the water table, penetrating the E through G and I basalt flow groups and interbedded sediments of the Snake River Plain aquifer. The success of the aquifer tests was limited by the inability to induce measurable drawdown in several zones. Time-drawdown data from aquifer tests were matched to type curves for 8 of the 16 zones tested. A single aquifer test at the water table exhibited greater curvature than those at depth. The increased degree of curvature suggests an unconfined response and resulted in an estimate of specific yield of 0.03. Aquifer tests below the water table generally yielded time-drawdown graphs with a rapid initial response followed by constant drawdown throughout the duration of the tests; up to several hours in length. The rapid initial response implies that the aquifer responds as a confined system during brief pumping periods. The nearly constant drawdown suggests a secondary source of water, probably vertical flow from overlying and underlying aquifer layers. Three analytical models were applied for comparison to the conceptual model and to provide estimates of aquifer properties. This, Hantush-Jacob leaky aquifer, and the Moench double-porosity fractured rock models were fit to time-drawdown data. The leaky aquifer type curves of Hantush and Jacob generally provided the best match to observed drawdown. A specific capacity regression equation was also used to estimate hydraulic conductivity.

Johnson, G.S.; Frederick, D.B.

1997-01-01

86

Characteristics and origin of Earth-mounds on the Eastern Snake River Plain, Idaho  

SciTech Connect

Earth-mounds are common features on the Eastern Snake River Plain, Idaho. The mounds are typically round or oval in plan view, <0.5 m in height, and from 8 to 14 m in diameter. They are found on flat and sloped surfaces, and appear less frequently in lowland areas. The mounds have formed on deposits of multiple sedimentary environments. Those studied included alluvial gravel terraces along the Big Lost River (late Pleistocene/early Holocene age), alluvial fan segments on the flanks of the Lost River Range (Bull Lake and Pinedale age equivalents), and loess/slopewash sediments overlying basalt flows. Backhoe trenches were dug to allow characterization of stratigraphy and soil development. Each mound has features unique to the depositional and pedogenic history of the site; however, there are common elements to all mounds that are linked to the history of mound formation. Each mound has a {open_quotes}floor{close_quotes} of a sediment or basement rock of significantly different hydraulic conductivity than the overlying sediment. These paleosurfaces are overlain by finer-grained sediments, typically loess or flood-overbank deposits. Mounds formed in environments where a sufficient thickness of fine-grained sediment held pore water in a system open to the migration to a freezing front. Heaving of the sediment occurred by the growth of ice lenses. Mound formation occurred at the end of the Late Pleistocene or early in the Holocene, and was followed by pedogenesis. Soils in the mounds were subsequently altered by bioturbation, buried by eolian deposition, and eroded by slopewash runoff. These secondary processes played a significant role in maintaining or increasing the mound/intermound relief.

Tullis, J.A.

1995-09-01

87

Sediment Characteristics and Transport in the Kootenai River White Sturgeon Critical Habitat near Bonners Ferry, Idaho  

USGS Publications Warehouse

Recovery efforts for the endangered Kootenai River population of white sturgeon require an understanding of the characteristics and transport of suspended and bedload sediment in the critical habitat reach of the river. In 2007 and 2008, the U.S. Geological Survey in cooperation with the Kootenai Tribe of Idaho, conducted suspended- and bedload-sediment sampling in the federally designated critical habitat of the endangered Kootenai River white sturgeon population. Three sediment-sampling sites were selected that represent the hydraulic differences in the critical habitat. Suspended- and bedload-sediment samples along with acoustic Doppler current profiles were collected at these sites during specific river discharges. Samples were analyzed to determine suspended- and bedload-sediment characteristics and transport rates. Sediment transport data were analyzed to provide total loading estimates for suspended and bedload sediment in the critical habitat reach. Total suspended-sediment discharge primarily occurred as fine material that moved through the system in suspension. Total suspended-sediment discharge ranged from about 300 metric tons per day to more than 23,000 metric tons per day. Total suspended sediment remained nearly equal throughout the critical habitat, with the exception of a few cases where mass wasting of the banks may have caused sporadic spikes in total suspended sediment. Bedload-sediment discharge averaged 0-3 percent of the total loading. These bedload discharges ranged from 0 to 271 tons per day. The bedload discharge in the upper part of the critical habitat primarily consisted of fine to coarse gravel. A decrease in river competence in addition to an armored channel may be the cause of this limited bedload discharge. The bedload discharge in the middle part of the white sturgeon critical habitat varied greatly, depending on the extent of the backwater from Kootenay Lake. A large quantity of fine-to-coarse gravel is present in the braided reach, but the duration of transport for these gravels is limited by the encroaching backwater of Kootenay Lake. Bedload discharge in the lower part of the white sturgeon critical habitat primarily consisted of fine to coarse sand due to decreased velocities as a result of the backwater from Kootenay Lake.

Fosness, Ryan L.; Williams, Marshall L.

2009-01-01

88

Hydrologic Conditions and Distribution of Selected Constituents in Water, Snake River Plain Aquifer, Idaho National Engineering and Environmental Laboratory, Idaho, 1996 through 1998  

SciTech Connect

Radiochemical and chemical wastewater discharged since 1952 to infiltration ponds and disposal wells at the Idaho National Engineering and Environmental Laboratory (INEEL) has affected water quality in the Snake River Plain aquifer. The US Geological Survey, in cooperation with the US Department of Energy, maintains a monitoring network at the INEEL to determine hydrologic trends and to delineate the movement to radiochemical and chemical wastes in the aquifer. This report presents an analysis of water-level and water-quality data collected from the Snake River Plain aquifer during 1996-98. Detectable concentrations of radiochemical constituents in water samples from wells in the Snake River Plain aquifer at the INEEL decreased or remained constant during 1996-98. Decreased concentrations are attributed to reduced rates of radioactive-waste disposal, sorption process, radioactive decay, and changes in waste-disposal practices. Detectable concentrations of chemical constituents in water from the Snake River Plain aquifer at the INEEL were variable during 1996-98.

R. C. Bartholomay; B. J. Tucker; L. C. Davis; M. R. Greene

2000-09-01

89

Channel Morphology of the Hells Canyon Reach of the Snake River, Idaho/Oregon Boarder, USA  

NASA Astrophysics Data System (ADS)

The Hells Canyon reach of the Snake River extends 103 river miles below Hells Canyon Dam along the Idaho/Oregon boarder. The channel morphology of this reach was evaluated through a variety of data, including bathymetric and LIDAR surveys, aerial photography and low-elevation videography, sediment sampling, and one-dimensional hydraulic modeling using MIKE 11 [DHI, 2001]. Through the canyon, the Snake River is narrowly confined by valley walls and directly coupled to hillslope processes and sediment inputs. Due to the strong valley-wall confinement, the river lacks the floodplain morphology and alluvial character typical of other lowland rivers of comparable gradient (< 0.003) and drainage area (270,000 km2). Much of the river morphology is forced by large-scale geologic and geomorphic controls that significantly reduce the range of fluvial processes and types of channel adjustment found in other lowland alluvial rivers. Nevertheless, the study reach shares some morphologic similarity with rivers of comparable gradient. In particular, the channel has an alluvial bed with a pool-riffle morphology and an average pool spacing of 6 channel widths, typical of self-formed pool-riffle channels. However, 91% of the 175 pools inventoried are either forced by tributary debris fans or bedrock projections, illustrating the influence of external forcing on the observed channel morphology. Moreover, many of the bars are composed of cobble- and boulder-sized material that may be relict deposits from paleofloods: 73% of the 105 sediment samples obtained from bar surfaces are predicted to be immobile (Shields stress < 0.03) during the 1.5-year discharge (a surrogate for bankfull flow), and many of the bar sediments have worn grooves into underlying particles from years of in situ chattering during high flow events. Despite large-scale external controls on channel morphology, downstream hydraulic geometry relationships in the Hells Canyon reach are similar to those reported for floodplain channels of comparable drainage area. Recent investigations by Montgomery and Gran [2001] indicate that typical hydraulic geometry relationships reported for alluvial channels may also apply to bedrock reaches (confined channels with few degrees of freedom, similar to the study reach). Moreover, a state diagram modified from Parker [1990] reveals that data from the Hells Canyon reach plot alongside data from floodplain pool-riffle channels in North America and Britain, but are distinct from other reach-scale channel types (step-pool, cascade, plane-bed) plotted in the same framework. These results support arguments made by Buffington et al. [2002] that different reach-scale channel morphologies arise from mutual adjustment of channel characteristics (width, grain size, bed slope, etc.) to imposed watershed conditions (discharge, sediment supply, valley slope, etc.). Consequently, one would expect that data from a given channel type (e.g., pool-riffle channels) should plot near one another in a regime diagram that relates imposed watershed conditions to channel characteristics, even when some channel characteristics (such as pool frequency or grain size) are forced by external controls or legacy events.

Buffington, J. M.; Milligan, J. H.; Anderson, K.; Doran, S. E.; Glanzman, R. K.; Miller, S. D.; Parkinson, S.

2002-12-01

90

Geochemistry of Central Snake River Plain Basalts From Camas Prairie to Glenns Ferry, Southern Idaho  

NASA Astrophysics Data System (ADS)

The Snake River Plain (SRP) of southern Idaho represents the track of a hot-spot (mantle plume) which links voluminous flood basalts of the Miocene Columbia River province to Quaternary volcanic centers at Island Park and Yellowstone. However, much of the volcanism associated with this province either lies off the main volcanic trend or differs in age from the postulated plume passage. The Camas Prairie and the Mount Bennett Hills lie north of the Snake River-Yellowstone plume track, near the intersection of the eastern and western Snake River Plain trends. Young basalt flows cap highlands overlooking the Snake River near King Hill, but farther north in the Mount Bennett Hills and Camas Prairie these young lava flows are juxtaposed against older basalts along a series of WNW trending normal faults. These older basalt flows rest directly on rhyolite of the Mount Bennett Hills, making them the oldest basalts known in outcrop in this area. The older basalts in the Mount Bennett Hills include at least six major flows with a total thickness of 110 m. Although they have been strongly dissected by erosion, they still cover an outcrop area of 300 km2 . Eighty samples were collected as part of our petrologic survey of basaltic volcanism in the central Snake River Plain. These samples were studied petrographically and analyzed for their major elements, trace elements, and REE. The basalts consist of plagioclase and olivine microphenocrysts set in a groundmass of olivine, plagioclase, clinopyroxene, oxides and interstitial glass. The majority of samples have Mg# ranging from 50- 59. However there are samples that are more evolved as indicated by Mg# ranging from less than 50 to 29. The high Mg# samples have the following chemical ranges: TiO2 0.87 - 2.6 wt.%; FeO 9.95 - 13.7 wt.%; Nb 8 to 23 ppm; Zr 111 to 243 ppm; Ni 81 to 151 ppm; La 10.9 to 26.9 ppm. The more evolved samples have TiO2 1.4 3.93 wt.%; FeO 9.7 16.8 wt%; Nb 11 to 40 ppm; Zr 110 to 500 ppm; Ni 4 to 85 ppm; La 67 to 97 ppm. All magmas exhibit the typical SRP LREE enrichment. The high Mg# samples have La = 35 to 85x chondrite and Lu = 14 to 25x chondrite. The evolved samples have La = 200 to 300x chondrite and Lu = 30 to 40x chondrite. The high Mg# basalts resemble older off-axis basalts of the Boise River Group [Vetter and Shervais, 1992, JGR]. Rayleigh fractionation modeling of incompatible elements shows >80% olivine and plagioclase fractionation is needed to create the evolved magmas from the high Mg# basalts. Presents of these older basalts north of the main SRP trend maybe associated with the tilt of the plume as imaged by seismic tomography.

Vetter, S. K.; Johnston, S. A.; Shervais, J.; Hanan, B.

2006-12-01

91

DATA RECOVERY EFFORTS AT IDAHO NATIONAL LABORATORY, OAK RIDGE NATIONAL LABORATORY, AND SAVANNAH RIVER NATIONAL LABORATORY  

SciTech Connect

Abstract was already submitted. Could not find the previous number. Would be fine with attaching/update of old number. Abstract Below: Modern nuclear facilities will have significant process monitoring capability for their operators. These systems will also be used for domestic safeguards applications, which has led to research over new diversion-detection algorithms. Curiously missing from these efforts are verification and validation data sets. A tri-laboratory project to locate the existing data sets and recover their data has yielded three major potential sources of data. The first is recovery of the process monitoring data of the Idaho Chemical Processing Plant, which now has a distributable package for algorithm developers. The second data set is extensive sampling and process data from Savannah River National Laboratory’s F- and H-canyon sites. Finally, high fidelity data from the start-up tests at the Barnwell Reprocessing Facility is in recovery. This paper details the data sets and compares their relative attributes.

Richard Metcalf; Saleem Salaymeh; Michael Ehinger

2010-07-01

92

Carbonate pseudomatrix in siliciclastic-carbonate turbidites from the Oquirrh-Wood River basin, southern Idaho  

SciTech Connect

Upper Pennsylvanian to Lower Permian mixed siliciclastic-carbonate sandy turbidites from the Oquirrh-Wood River basin in southern Idaho contain 20 to 60 modal percent microspar and pseudospar. Previous interpretations suggested that neomorphism of detrital lime mud produced the observed carbonate textures. The original detrital lime mud produced the observed carbonate textures. The original detrital lime mud content, based on these interpretations, indicates matrix-rich, poorly sorted turbidite deposits. However, observed turbidite hydrodynamics, and grain-size data from experimental and naturally occurring sandy turbidite deposits, indicate that T[sub n]-T[sub c] intervals of sandy turbidites are generally moderately well sorted, with low matrix content. Fluorescence microscopy reveals that the carbonate fraction of these mixed siliciclastic-carbonate turbidites contains micritized skeletal grains and fusulinids, and algal peloids. These micritized grains and peloids were physically compacted and neomorphosed to form a carbonate pseudomatrix. Formation of carbonate pseudomatrix is analogous to formation of pseudomatrix in siliciclastic lithic sands, which includes crushing and recrystallization of lithic grains. Grain-size analysis of siliciclastic and slightly compacted carbonate grains indicates that these are moderately well sorted turbidite deposits with similar grain-size populations in both fractions. Lack of recognition of carbonate pseudomatrix could lead to erroneous interpretations of carbonate petrology. Identification of carbonate pseudomatrix is important to the study of mixed siliciclastic-carbonate gravity-flow deposits. This study demonstrates the value of fluorescence microscopy in the recognition of carbonate pseudomatrix.

Geslin, J.K. (Univ. of California, Los Angeles, CA (United States). Dept. of Earth and Space Sciences)

1994-01-01

93

Multiscale Genetic Structure of Yellowstone Cutthroat Trout in the Upper Snake River Basin.  

SciTech Connect

Populations of Yellowstone cutthroat trout Oncorhynchus clarkii bouvierii have declined throughout their native range as a result of habitat fragmentation, overharvest, and introductions of nonnative trout that have hybridized with or displaced native populations. The degree to which these factors have impacted the current genetic population structure of Yellowstone cutthroat trout populations is of primary interest for their conservation. In this study, we examined the genetic diversity and genetic population structure of Yellowstone cutthroat trout in Idaho and Nevada with data from six polymorphic microsatellite loci. A total of 1,392 samples were analyzed from 45 sample locations throughout 11 major river drainages. We found that levels of genetic diversity and genetic differentiation varied extensively. The Salt River drainage, which is representative of the least impacted migration corridors in Idaho, had the highest levels of genetic diversity and low levels of genetic differentiation. High levels of genetic differentiation were observed at similar or smaller geographic scales in the Portneuf River, Raft River, and Teton River drainages, which are more altered by anthropogenic disturbances. Results suggested that Yellowstone cutthroat trout are naturally structured at the major river drainage level but that habitat fragmentation has altered this structuring. Connectivity should be restored via habitat restoration whenever possible to minimize losses in genetic diversity and to preserve historical processes of gene flow, life history variation, and metapopulation dynamics. However, alternative strategies for management and conservation should also be considered in areas where there is a strong likelihood of nonnative invasions or extensive habitat fragmentation that cannot be easily ameliorated.

Cegelski, Christine C.; Campbell, Matthew R.

2006-05-30

94

Hydrogeologic framework of the Wood River Valley aquifer system, south-central Idaho  

USGS Publications Warehouse

The Wood River Valley contains most of the population of Blaine County and the cities of Sun Valley, Ketchum, Hailey, and Bellevue. This mountain valley is underlain by the alluvial Wood River Valley aquifer system, which consists primarily of a single unconfined aquifer that underlies the entire valley, an underlying confined aquifer that is present only in the southernmost valley, and the confining unit that separates them. The entire population of the area depends on groundwater for domestic supply, either from domestic or municipal-supply wells, and rapid population growth since the 1970s has caused concern about the long-term sustainability of the groundwater resource. As part of an ongoing U.S. Geological Survey effort to characterize the groundwater resources of the Wood River Valley, this report describes the hydrogeologic framework of the Wood River Valley aquifer system. Although most of the Wood River Valley aquifer system is composed of Quaternary-age sediments and basalts of the Wood River Valley and its tributaries, older igneous, sedimentary, or metamorphic rocks that underlie these Quaternary deposits also are used for water supply. It is unclear to what extent these rocks are hydraulically connected to the main part of Wood River Valley aquifer system and thus whether they constitute separate aquifers. Paleozoic sedimentary rocks in and near the study area that produce water to wells and springs are the Phi Kappa and Trail Creek Formations (Ordovician and Silurian), the Milligen Formation (Devonian), and the Sun Valley Group including the Wood River Formation (Pennsylvanian-Permian) and the Dollarhide Formation (Permian). These sedimentary rocks are intruded by granitic rocks of the Late Cretaceous Idaho batholith. Eocene Challis Volcanic Group rocks overlie all of the older rocks (except where removed by erosion). Miocene Idavada Volcanics are found in the southern part of the study area. Most of these rocks have been folded, faulted, and metamorphosed to some degree, thus rock types and their relationships vary over distance. Quaternary-age sediment and basalt compose the primary source of groundwater in the Wood River Valley aquifer system. These Quaternary deposits can be divided into three units: a coarse-grained sand and gravel unit, a fine-grained silt and clay unit, and a single basalt unit. The fine- and coarse-grained units were primarily deposited as alluvium derived from glaciation in the surrounding mountains and upper reaches of tributary canyons. The basalt unit is found in the southeastern Bellevue fan area and is composed of two flows of different ages. Most of the groundwater produced from the Wood River Valley aquifer system is from the coarse-grained deposits. The altitude of the pre-Quaternary bedrock surface in the Wood River Valley was compiled from about 1,000 well-driller reports for boreholes drilled to bedrock and about 70 Horizontal-to-Vertical Spectral Ratio (HVSR) ambient-noise measurements. The bedrock surface generally mimics the land surface by decreasing down tributary canyons and the main valley from north to south; it ranges from more than 6,700 feet in Baker Creek to less than 4,600 feet in the central Bellevue fan. Most of the south-central portion of the Bellevue fan is underlain by an apparent topographically closed area on the bedrock surface that appears to drain to the southwest towards Stanton Crossing. Quaternary sediment thickness ranges from less than a foot on main and tributary valley margins to about 350 feet in the central Bellevue fan. Hydraulic conductivity for 81 wells in the study area was estimated from well-performance tests reported on well-driller reports. Estimated hydraulic conductivity for 79 wells completed in alluvium ranges from 1,900 feet per day (ft/d) along Warm Springs Creek to less than 1 ft/d in upper Croy Canyon. A well completed in bedrock had an estimated hydraulic conductivity value of 10 ft/d, one well completed in basalt had a value of 50 ft/d, and three wells completed in the confined system had values ranging from 32 to 52 ft/

Bartolino, James R.; Adkins, Candice B.

2012-01-01

95

Sediment transport by streams in the Palouse River basin, Washington and Idaho, July 1961-June 1965  

USGS Publications Warehouse

The Palouse River basin covers about 3,300 square miles in southeastern Washington and northwestern Idaho. The eastern part of the basin is composed of steptoes and foothills which are generally above an altitude of 2,600 feet; the central part is of moderate local relief and is mantled chiefly by thick loess deposits; and the western part is characterized by low relief and scabland topography and is underlain mostly by basalt. Precipitation increases eastward across the study area. It ranges annually from 12 to 18 inches in the western part and from 14 to 23 inches in the central part, and it exceeds 40 inches in the eastern part. Surface runoff from the basin for the 4-year period of study (July 1961-June 1965) averaged 408,000 acre-feet per year, compared with 445,200 acre-feet per year for the 27-year period of record. The eastern part of the basin contributed about 55 percent of the total, whereas the central and western parts contributed 37 percent and 8 percent, respectively. Most sediment transport from the Palouse River basin and the highest sediment concentrations in streams occurred in the winter. Of the several storms during the study period, those of February 3-9, 1963, December 22-27, 1964, and January 27-February 4, 1965, accounted for 81 percent of the total 4-year suspended-sediment load; the storm of February 3-9, 1963, accounted for nearly one-half the total load. The discharge-weighted mean concentration of suspended sediment carried in the Palouse River past Hooper during the study period was 2,970 milligrams per liter. The average annual sediment discharge of the Palouse River at its mouth was about 1,580,000 tons per year, and the estimated average annual sediment yield was 480 tons per square mile. The yield ranged from 5 tons per square mile from the western part of the basin to 2,100 tons per square mile from the central part. The high yield from the central part is attributed to a scarcity of vegetal cover, to the fine-grained loess soils, and to rapid runoff during winter storms. Sediment yield from the eastern part of the basin ranged from 460 to more than 1,000 tons per square mile. During high flow, silt particles make up the largest part of the suspended-sediment load, whereas during low flow, clay particles represent the greatest part. On the average, the suspended sediment transported by the Palouse River past Hooper contained 3 percent sand, 68 percent silt, and 29 percent clay. Unmeasured sediment discharge was estimated to have been 5 percent of the total sediment discharge. Data collected during the 4-year period of study show that sediment loads were higher than those recorded by V. G. Kaiser during the longer period 1939-65. Whereas Kaiser's study showed an average annual soil loss of 9.6 million tons, the average annual loss during the recent study was 14.2 million tons. The factor that has had the greatest effect on the increase of sediment yields is land use. Lands once covered and protected by natural vegetation have been extensively, cultivated, and much of the soil has become susceptible to erosion, particularly in areas mantled by loessal soils.

Boucher, P. R.

1970-01-01

96

Surface-Water/Ground-Water Interaction of the Spokane River and the Spokane Valley/Rathdrum Prairie Aquifer, Idaho and Washington.  

National Technical Information Service (NTIS)

Historical mining in the Coeur d'Alene River Basin of northern Idaho has resulted in elevated concentrations of some trace metals (particularly cadmium, lead, and zinc) in water and sediment of Coeur d'Alene Lake and downstream in the Spokane River in Ida...

R. R. Caldwell C. L. Bowers

2003-01-01

97

Seismic Reflection Project Near the Southern Terminations of the Lost River and Lemhi Faults, Eastern Snake River Plain, Idaho  

SciTech Connect

Thirteen seismic reflection lines were processed and interpreted to determine the southern terminations of the Lost River and Lemhi faults along the northwest boundary of the eastern Snake River Plain (ESRP). The southernmost terminations of the Arco and Howe segments were determined to support characterization of the Lost River and Lemhi fault sources, respectively, for the INL probabilistic seismic hazard analysis. Keywords:Keywords are required forExternal Release Review*Keywords  Keywords *Contacts (Type and Name are required for each row) Type ofContactContact Name  POC Editor RecordFour commercial seismic reflection lines (Arco lines 81-1 and 81-2; Howe lines 81-3 and 82-2) were obtained from the Montana Power Company. The seismic data were collected in the early 1980’s using a Vibroseis source with station and shot point locations that resulted in 12-fold data. Arco lines 81?1 and 81?2 and Howe lines 81?3 and 82?2 are located within the basins adjacent to the Arco and Howe segments, respectively. Seven seismic lines (Arco lines A1, A2, A3, and A4 and Howe lines H1, H2, and H3) were acquired by EG&G Idaho, Inc. Geosciences for this study using multiple impacts with an accelerated weight drop source. Station and shot point locations yielded 12-fold data. The seismic reflection lines are oriented perpendicular to and at locations along the projected extensions of the Arco and Howe fault segments within the ESRP. Two seismic lines (Arco line S2 and Howe line S4) were obtained from Sierra Geophysics. In 1984, they acquired seismic reflection data using an accelerated weight drop source with station and shot point locations that yielded 6-fold data. The two seismic reflection lines are oriented perpendicular to and at locations along the projected extensions of the Arco and Howe fault segments within the ESRP. In 1992 for this study, Geotrace Technologies Inc. processed all of the seismic reflection data using industry standard processing techniques. The southern termination of the Howe segment of the Lemhi fault was placed between Howe lines H1 and H2, 2.2 km south of the fault’s southernmost surface expression. In the adjacent basin, south-dipping normal faults at the northern end of Howe line 81-3 and two southwest-dipping normal faults at the northeastern end of Howe line 82-2 that can be correlated with Howe segment. South of the surface expression, two southwest-dipping normal faults on Howe line H1 can be correlated with the Howe segment. Further into the ESRP, Howe lines H2, H3, and S4 show continuous flat lying reflectors and indicate no fault offset. The southern termination of the Arco segment of the Lost River fault was placed between Arco lines S2 and A3, a distance of 4.6 km south of the fault’s southernmost surface expression. Within the basin, west-dipping normal faults interpreted on Arco lines 81-1 and 81-2 can be correlated with the Arco segment. Further south within the Arco volcanic rift zone (VRZ), three seismic lines (Arco lines A2, S2, and A3) permit two interpretations. The west- and south-dipping normal faults on Arco lines A2 and S2 could be associated with slip along the Arco segment. These normal faults have an opposite dip to an east-dipping fault on Arco line A3. The observed small-offsets (< 85 m) along the oppositely dipping normal faults can be interpreted as a graben structure that resulted from dike intrusion within the Arco VRZ. Arco line A4 further south within the Arco VRZ shows flat lyin

S. M. Jackson; G. S. Carpenter; R. P. Smith; J. L. Casper

2006-10-01

98

Spawning Success of Hatchery Spring Chinook Salmon Outplanted as Adults in the Clearwater River Basin, Idaho, 2001.  

SciTech Connect

The study described in this report evaluated spawning distribution, overlap with naturally-arriving spawners, and pre-spawning mortality of spring chinook salmon, Oncorhynchus tshawytscha, outplanted as adults in the Clearwater River Subbasin in 2001. Returns of spring chinook salmon to Snake River Basin hatcheries and acclimation facilities in 2001 exceeded needs for hatchery production goals in Idaho. Consequently, management agencies including the U.S. Fish and Wildlife Service (FWS), Idaho Department of Fish and Game (IDFG) and Nez Perce Tribe (NPT) agreed to outplant chinook salmon adults as an adaptive management strategy for using hatchery adults. Adult outplants were made in streams or stream sections that have been typically underseeded with spawners. This strategy anticipated that outplanted hatchery chinook salmon would spawn successfully near the areas where they were planted, and would increase natural production. Outplanting of adult spring chinook salmon from hatcheries is likely to be proposed in years when run sizes are similar to those of the 2001 run. Careful monitoring of results from this year's outplanting can be used to guide decisions and methods for future adult outplanting. Numbers of spring chinook salmon outplanted was based on hatchery run size, hatchery needs, and available spawning habitat. Hatcheries involved in outplanting in the Clearwater Basin included Dworshak National Fish Hatchery, Kooskia National Fish Hatchery, Clearwater Anadromous Fish Hatchery, and Rapid River Fish Hatchery. The NPT, IDFG, FWS, and the National Marine Fisheries Service (NMFS) agreed upon outplant locations and a range of numbers of spring chinook salmon to be outplanted (Table 1). Outplanting occurred mainly in the Selway River Subbasin, but additional outplants were made in tributaries to the South Fork Clearwater River and the Lochsa River (Table 1). Actual outplanting activities were carried out primarily by the NPT with supplemental outplanting done in the Lochsa basin by IDFG. Fish were trucked from the hatcheries to outplant sites.

Cramer, Steven P.; Ackerman, Nichlaus; Witty, Kenneth L.

2002-04-16

99

Climatic and Tectonic Controls on Alluvial Fan Evolution: The Lost River Range, Idaho  

NASA Astrophysics Data System (ADS)

In the northern Basin &Range, alluvial fans developed along the Lost River range-front consist of several distinct inset fan segments with concave-up radial profiles. Multiple large radius (>5 km), shallow (2- 3°), alluvial fans extend across and beyond the active, ~140-km-long, normal Lost River fault. These large fans are relict features, formed by major sheetfloods that occurred intermittently between ~15-180 ka. More recent deposition has been dominated by debris-flows that form small-radius (<2 km), steep (8- 17°), fans closely confined to the mountain front [1,2]. In order to determine the timing of fan surface stabilization, we have undertaken precise mass spectrometric 230Th/U dating of pedogenic carbonate from calcic soils that mantle fan surfaces on the Arco fault segment. Careful selection of mg-size samples of dense soil carbonate pebble coats, from within a trench that cuts through gravelly fan deposits, indicates that the fan soils are geochemically suitable for uranium-series dating (median U=7ppm, 232Th=0.09ppm, 232Th/230Th=154). 230Th/U analysis of these calcic soils can thus provide precise temporal constraints on intervals of surface stability and subsequent soil formation. The oldest fan surface (Qfo1, 178+/-8 ka), exposed within the footwall of the trench, suggests an interval of surface stability, indicating that the fan was likely abandoned due to incision early in MIS 6. Incision may have resulted from surface faulting along the Arco segment of the Lost River fault, but could relate to changes in stream power or sediment supply associated with climatic change or with auto-cyclic variations within the drainage basin. A younger incised and faulted fan surface (Qfo2, 69+/-6 ka), likely represents active alluviation at the beginning of MIS 4 and, since it formed as hanging-wall alluvial gravel, provides age limits on an episode of fault displacement between Qfo1 and Qfo2. In situ pedogenic carbonate coats on sub-angular gravels within the colluvial fault wedge date at 68+/-2 ka, suggesting that either faulting occurred soon after Qfo2 stabilized or that soil carbonate coats were recycled into the colluvial wedge from the faulted surface. Further studies in the Lost River Range will assess the timing of fan deposition, surface stabilization and fault activity since the late Pleistocene using coupled application of Optically Stimulated Thermoluminescence (OSL) dating of loess and fine-sands, and 230Th/U-dating of pedogenic carbonate formed within well- exposed fan stratigraphy. Defining intervals of erosion, deposition and stability within the context of regional records of Quaternary climate change will yield new insights into the interplay between faulting, climate change and alluvial fan deposition and incision in semi-arid environments. [1] Pierce, K.L., Scott, W.E., 1982. Idaho Mines &Geol. Bull. 26. [2] Patterson, S.J., 2006. M.S. Thesis, Montana State University

Phillips, R. J.; Pierce, J. L.; Sharp, W. D.; Pierce, K. L.

2006-12-01

100

Laboratory-Measured and Property-Transfer Modeled Saturated Hydraulic Conductivity of Snake River Plain Aquifer Sediments at the Idaho National Laboratory, Idaho  

USGS Publications Warehouse

Sediments are believed to comprise as much as 50 percent of the Snake River Plain aquifer thickness in some locations within the Idaho National Laboratory. However, the hydraulic properties of these deep sediments have not been well characterized and they are not represented explicitly in the current conceptual model of subregional scale ground-water flow. The purpose of this study is to evaluate the nature of the sedimentary material within the aquifer and to test the applicability of a site-specific property-transfer model developed for the sedimentary interbeds of the unsaturated zone. Saturated hydraulic conductivity (Ksat) was measured for 10 core samples from sedimentary interbeds within the Snake River Plain aquifer and also estimated using the property-transfer model. The property-transfer model for predicting Ksat was previously developed using a multiple linear-regression technique with bulk physical-property measurements (bulk density [pbulk], the median particle diameter, and the uniformity coefficient) as the explanatory variables. The model systematically underestimates Ksat,typically by about a factor of 10, which likely is due to higher bulk-density values for the aquifer samples compared to the samples from the unsaturated zone upon which the model was developed. Linear relations between the logarithm of Ksat and pbulk also were explored for comparison.

Perkins, Kim S.

2008-01-01

101

Stratigraphy of the unsaturated zone and uppermost part of the Snake River Plain aquifer at test area north, Idaho National Engineering Laboratory, Idaho  

SciTech Connect

A complex sequence of basalt flows and sedimentary interbeds underlies Test Area North (TAN) at the Idaho National Engineering Laboratory in eastern Idaho. Wells drilled to depths of at least 500 feet penetrate 10 basalt-flow groups and 5 to 10 sedimentary interbeds that range in age from about 940,000 to 1.4 million years. Each basalt-flow group consists of one or more basalt flows from a brief, single or compound eruption. All basalt flows of each group erupted from the same vent, and have similar ages, paleomagnetic properties, potassium contents, and natural-gamma emissions. Sedimentary interbeds consist of fluvial, lacustrine, and eolian deposits of clay, silt, sand, and gravel that accumulated for hundreds to hundreds of thousands of years during periods of volcanic quiescence. Basalt and sediment are elevated by hundreds of feet with respect to rocks of equivalent age south and cast of the area, a relation that is attributed to past uplift at TAN. Basalt and sediment are unsaturated to a depth of about 200 feet below land surface. Rocks below this depth are saturated and make up the Snake River Plain aquifer. The effective base of the aquifer is at a depth of 885 feet below land surface. Detailed stratigraphic relations for the lowermost part of the aquifer in the depth interval from 500 to 885 feet were not determined because of insufficient data. The stratigraphy of basalt-flow groups and sedimentary interbeds in the upper 500 feet of the unsaturated zone and aquifer was determined from natural-gamma logs, lithologic logs, and well cores. Basalt cores were evaluated for potassium-argon ages, paleomagnetic properties, petrographic characteristics, and chemical composition. Stratigraphic control was provided by differences in ages, paleomagnetic properties, potassium content, and natural-gamma emissions of basalt-flow groups and sedimentary interbeds.

Anderson, S.R.; Bowers, B.

1995-06-01

102

OSL dating without sand lenses: Late Pleistocene alluvial fan aggradation in the Lost River Range, Idaho  

NASA Astrophysics Data System (ADS)

Along the western front of the Lost River Range (LRR) in Idaho, USA, numerous sheetflood-dominated alluvial fans extend 2-6 km from the mountain front. Despite their geomorphic significance within the basin, these fans are largely inactive under modern conditions and are hypothesized to be remnants of glacial climate (e.g. Pierce and Scott, 1982). To investigate climate and glaciation as potential drivers of fan aggradation, the first goal of this study was determining how best to apply optically stimulated luminescence (OSL) dating as deposits lacked sand lenses and were predominately clast-supported sheetflood gravels with a sandy matrix. The second goal of the study was to investigate the Quaternary climate conditions that promote alluvial fan aggradation, including the importance of glacial activity vs. general glacial climate conditions as drivers of sedimentation. Five fans that represent the variation in late Pleistocene glaciation within contributing basins (0-80% of basin area) were selected for dating and geomorphic mapping. Samples for OSL dating were largely collected by excavating material from under light-safe tarps or at night, with samples for equivalent dose estimates sieved to retain the <2mm portion. Sediment chemistry for dose rate (DR) estimation was analyzed for numerous grain sizes. Sand grain size fractions (<2 mm and 0.15-2.0 mm) produced the highest DR estimates, pebbles (>5 mm) the lowest, with results from bulk samples generally in between. Bulk sample DR estimates were preferred, likely providing the best estimate of the average dose from the sediment. Partial bleaching is not suggested by equivalent dose distributions, but overdispersion values of >20% for some samples may result from the heterogeneity in the sediment DR. Despite potential DR problems, resulting ages are consistent with fan morphology and multiple ages from single surfaces show good agreement. Ages from 31 OSL samples ranged from ~4-60 ka and with mapped fan surfaces suggest aggradation during four distinct intervals: 0-10 ka, 10-20 ka, 20-35 ka and 35-60 ka. Surprisingly, the timing of deposition is similar for all fans, regardless of past glacial extent within contributing basins. The majority of fan aggradation occurred during the late Pleistocene, with deposition during the Holocene limited to ~10% of total fan surface area. The greater extent of late Pleistocene surfaces, steeper slopes and dominance of coarser sheetflood facies suggests greater transport capacity of streams and sediment delivery to fans between 10-60 ka. Regional climate records indicate generally cold climate in the LRR throughout 10-60 ka, but more variable moisture delivery. Cold conditions may have increased transport capacity with greater effective moisture and higher spring discharges in response to increased winter snowpacks . Concurrently, sediment delivery may have increased by mobilization of stored hillslope sediment, decreased vegetation cover or increased sediment production by glaciation, enhanced weathering rates and more effective frost weathering. Overall, this research shows that glacial climate conditions, not necessarily glaciation, enhance hillslope sediment supply and fan aggradation in the LRR of Idaho.

Kenworthy, M.; Rittenour, T. M.; Pierce, J. L.

2011-12-01

103

Additional mineral resources assessment of the Battle Creek, Bruneau River, Deep Creek-Owyhee River, Jarbidge River, Juniper Creek, Little Owyhee River, North Fork Owyhee River, Owyhee River Canyon, South Fork Owyhee River, Upper Deep Creek, and Yatahoney Creek Wilderness Study Areas, Owyhee County, Idaho  

USGS Publications Warehouse

From 1984 to 1986, studies were conducted to assess the potential for undiscovered mineral resources in wilderness study areas on the Owyhee Plateau. The results of these studies have been published in a series of U.S. Geological Survey Bulletins. Since that time, low-grade, high-tonnage epithermal hot-spring gold-silver deposits have been recognized in the region north of the wilderness study areas. The recognition that this mineral-deposit model is applicable in the region, coupled with new data that has become available to the U.S. Geological Survey, reinterpretation of existing geochemical data, and known-deposit data suggest that similar deposits may be present elsewhere on the Owyhee Plateau. This report is an additional assessment of the Battle Creek, Bruneau River, Deep Creek-Owyhee River, Jarbidge River, Juniper Creek, Little Owyhee River, North Fork Owyhee River, Owyhee River Canyon, South Fork Owyhee River (ID-016-053), Upper Deep Creek, and Yatahoney Creek Wilderness Study Areas in Idaho Wilderness Study Areas in Idaho in light of those new data.

Diggles, Michael F.; Berger, Byron R.; Vander Meulen, Dean B.; Minor, Scott A.; Ach, Jay A.; Sawlan, Michael G.

1989-01-01

104

Kinematics of the Snake River Plain and Centennial Shear Zone, Idaho, from GPS and earthquatte data  

NASA Astrophysics Data System (ADS)

New horizontal Global Positioning System (GPS) velocities at 405 sites using GPS phase data collected from 1994 to 2010 along with earthquakes, faults, and volcanic features reveal how contemporary strain is accommodated in the Northern Basin and Range Province. The 1994-2010 velocity field has observable gradients arising from both rotation and strain. Kinematic interpretations are guided by using a block-model approach and inverting velocities, earthquake slip vector azimuths, and dike-opening rates to simultaneously solve for angular velocities of the blocks and uniform horizontal strain rate tensors within selected blocks. The Northern Basin and Range block model has thirteen blocks representing tectonic provinces based on knowledge of geology, seismicity, volcanism, active tectonic faults, and regions with differences in observed velocities. Ten variations of the thirteen blocks are tested to assess the statistical significance of boundaries for tectonic provinces, motions along those boundaries, and estimates of long-term deformation within the provinces. From these tests, a preferred model with seven tectonic provinces is determined by applying a maximum confidence level of ?99% probability to F-distribution tests between two models to indicate one model with added boundaries has a better fit to the data over a second model. The preferred model is varied to test hypotheses of post-seismic viscoelastic relaxation, significance of dikes in accommodating extension, and bookshelf faulting in accommodating shear. Six variations of the preferred model indicate time-varying components due to viscoelastic relaxation from the 1959 Hebgen Lake, Montana and 1983 Borah Peak, Idaho earthquakes have either ceased as of 2002 or are too small to be evident in the observed velocities. Inversions with dike-opening models indicate that the previously hypothesized rapid extension by dike intrusion in volcanic rift zones to keep pace with normal faulting is not currently occurring in the Snake River Plain. Alternatively, the preferred model reveals a low deforming region (-0.1 +/- 0.4 x 10-9 yr -1, which is not discernable from zero) covering 125 km x 650 km within the Snake River Plain and Owyhee-Oregon Plateau that is separated from the actively extending adjacent Basin and Range regions by narrow belts of localized shear. Velocities reveal rapid extension occurs to the north of the Snake River Plain in the Centennial Tectonic Belt (5.6 +/- 0.7 x 10 -9 yr-1) and to the south in the Intermountain Seismic Belt and Great Basin (3.5 +/- 0.2 x 10-9 yr-1). The "Centennial Shear Zone" is a NE-trending zone of up to 1.5 mm yr -1 of right-lateral shear and is the result of rapid extension in the Centennial Tectonic Belt adjacent to the low deforming region of the Snake River Plain. Variations of the preferred model that test the hypothesis of bookshelf faulting demonstrate shear does not drive Basin and Range extension in the Centennial Tectonic Belt. Instead, the velocity gradient across the Centennial Shear Zone indicates that shear is distributed and deformation is due to strike-slip faulting, distributed simple shear, regional-scale rotation, or any combination of these. Near the fastest rates of right-lateral slip, focal mechanisms are observed with strike-slip components of motion consistent with right-lateral shear. Here also, the segment boundary between two E-trending Basin and Range faults, which are oriented subparallel to the NE-trending shear zone, provides supporting Holocene to mid-Pleistocene geologic evidence for accommodation of right-lateral shear in the Centennial Shear Zone. The southernmost ends of NW-trending Basin and Range faults in the Centennial Tectonic Belt at their juncture with the eastern Snake River Plain could accommodate right-lateral shear through components of left-lateral oblique slip. Right-lateral shear may be accommodated by components of strike-slip motion on multiple NE-trending faults since geologic evidence does not support slip along one continuous NE-trending fault along the boundary

Payne, Suzette J.

105

76 FR 17341 - Idaho Roadless Rule  

Federal Register 2010, 2011, 2012, 2013

...Forest Service 36 CFR Part 294 Idaho Roadless Rule AGENCY: Forest Service, USDA. ACTION...Scenic River). During the Idaho rulemaking, Forest Plan Special Areas were identified...Forest Idaho roadless area Number...

2011-03-29

106

Seismic Reflection Project Near the Southern Terminations of the Lost River and Lemhi Faults, Eastern Snake River Plan, Idaho.  

National Technical Information Service (NTIS)

Thirteen seismic reflection lines were processed and interpreted to determine the southern terminations of the Lost River and Lemhi faults along the northwest boundary of the eastern Snake River Plain (ESRP). The southernmost terminations of the Arco and ...

G. S. Carpenter J. L. Casper R. P. Smith S. M. Jackson

2006-01-01

107

Movements of adult chinook salmon during spawning migration in a metals-contaminated system, Coeur d'Alene River, Idaho  

USGS Publications Warehouse

Spawning migration of adult male chinook salmon Oncorhynchus tshawytscha was monitored by radio telemetry to determine their response to the presence of metals contamination in the South Fork of the Coeur d'Alene River, Idaho. The North Fork of the Coeur d'Alene River is relatively free of metals contamination and was used as a control. In all, 45 Chinook salmon were transported from their natal stream. Wolf Lodge Creek, tagged with radio transmitters, and released in the Coeur d'Alene River 2 km downstream of the confluence of the South Fork and the North Fork of the Coeur d'Alene River. Fixed telemetry receivers were used to monitor the upstream movement of the tagged chinook salmon through the confluence area for 3 weeks after release. During this period, general water quality and metals concentrations were monitored in the study area. Of the 23 chinook salmon observed to move upstream from the release site and through the confluence area, the majority (16 fish, 70%) moved up the North Fork, and only 7 fish (30%) moved up the South Fork, where greater metals concentrations were observed. Our results agree with laboratory findings and suggest that natural fish populations will avoid tributaries with high metals contamination.

Goldstein, J. N.; Woodward, D. F.; Farag, A. M.

1999-01-01

108

WATER QUALITY INVESTIGATIONS OF SNAKE RIVER AND PRINCIPAL TRIBUTARIES FROM WALTERS FERRY TO WEISER, IDAHO. 1971  

EPA Science Inventory

Stream surveys conducted from 18 October to 10 November 1971 revealed that water upstream of the Boise River was relatively unpolluted, however, bacterial standards were violated. In the reach of the Snake River between the mouth of the Boise River and Weiser (170501), gross vio...

109

Pliocene and early Pleistocene environments and climates of the western Snake River Plain, Idaho  

Microsoft Academic Search

Sedimentological, palynological, and magnetic susceptibility data provide paleoenvironmental and paleoclimatic information from a 989 ft (301 m) core of sediments from the upper Glenns Ferry and Bruneau Formations from near the town of Bruneau in Owyhee County, Idaho. Chronology is based on stratigraphic position, paleomagnetism, and biostratigraphic data, which collectively suggest a late Gauss Normal-Polarity Chron age for the Glenns

Robert S. Thompson

1996-01-01

110

RANGE VEGETATION ASSESSMENT IN THE BIG DESERT, UPPER SNAKE RIVER PLAIN, IDAHO 2005  

Microsoft Academic Search

Vegetation data was collected at 305 randomly located sample points between June 1 and July 15, 2005 (206 in the USDI BLM Big Desert Region and 99 in the O'Neal Study area located 3 miles north of McCammon, Idaho). We collected data describing percent cover of grasses and shrubs, dominant weed and shrub species, fuel load, sagebrush age, GAP vegetation

Jed Gregory; Luke Sander; Keith T. Weber

2005-01-01

111

Estimating Post-Wildfire Catchment Sediment Budgets, South Fork Salmon River, Idaho  

Microsoft Academic Search

Fire is an important agent of hydrological, biological and geomorphological change in Idaho forests. Vegetation mortality, loss of root strength, and increased soil hydrophobicity contribute to increase post-fire hillslope erosion rates. Over longer time scales, warmer, drier periods are linked to more frequent forest fires, which in turn helps to drive long-term sediment flux. Increasing annual temperature and drought occurrence

L. M. Perreault; E. M. Yager; R. E. Aalto

2009-01-01

112

Annual Trace-Metal Load Estimates and Flow-Weighted Concentrations of Cadmium, Lead, and Zinc, in the Spokane River Basin, Idaho and Washington, 1999-2004.  

National Technical Information Service (NTIS)

Streamflow and trace-metal concentration data collected at 10 locations in the Spokane River basin of northern Idaho and eastern Washington during 1999-2004 were used as input for the U.S. Geological Survey software, LOADEST, to estimate annual loads and ...

M. M. Donato

2006-01-01

113

Coolwater culmination: Sensitive high-resolution ion microprobe (SHRIMP) UPb and isotopic evidence for continental delamination in the Syringa Embayment, Salmon River suture, Idaho  

Microsoft Academic Search

During dextral oblique translation along Laurentia in western Idaho, the Blue Mountains superterrane underwent clockwise rotation and impinged into the Syringa embayment at the northern end of the Salmon River suture. Along the suture, the superterrane is juxtaposed directly against western Laurentia, making this central Cordilleran accretionary-margin segment unusually attenuated. In the embayment, limited orthogonal contraction produced a crustal wedge

Karen Lund; J. N. Aleinikoff; E. Y. Yacob; D. M. Unruh; C. M. Fanning

2008-01-01

114

Development of a regional groundwater flow model for the area of the Idaho National Engineering Laboratory, Eastern Snake River Plain Aquifer.  

National Technical Information Service (NTIS)

This report documents a study conducted to develop a regional groundwater flow model for the Eastern Snake River Plain Aquifer in the area of the Idaho National Engineering Laboratory. The products of this study are this report and a set of computational ...

J. M. McCarthy R. C. Arnett R. M. Neupauer

1995-01-01

115

Using Environmental Isotopes, Geochemistry, and Aquifer Temperature to Address Flow Regimes Within the Eastern Snake River Plain Aquifer at the Idaho National Engineering and Environmental Laboratory  

Microsoft Academic Search

Beginning in 1997 a series of studies utilizing uranium and strontium isotopes were undertaken to characterize the Eastern Snake River Plain (ESRP) aquifer at the Idaho National Engineering and Environmental Laboratory (INEEL). These studies identified fast flow and slow flow zones within the ESRP aquifer at the INEEL. The work presented here is the result of continued study to characterize

T. L. McLing; R. P. Smith; R. C. Roback; J. G. Elizabeth; D. D. Blackwell

2002-01-01

116

BIOLOGICAL METRIC DEVELOPMENT FOR THE ASSESSMENT OF NONPOINT POLLUTION IN THE SNAKE RIVER ECOREGION OF SOUTHERN IDAHO, 1990-91 FINAL REPORT  

EPA Science Inventory

The purpose of this project was to develop and test a biological assessment program for representative streams in the Snake River Basin ecoregion of southern Idaho. A habitat analysis component was included to provide an independent measure of environmental conditions. The over...

117

PHYSICAL, CHEMICAL, AND BIOLOGICAL CHARACTERISTICS OF THE BOISE RIVER FROM VETERANS MEMORIAL PARKWAY, BOISE TO STAR, IDAHO, OCTOBER 1987 TO MARCH 1987  

EPA Science Inventory

Chemical and physical data were collected at 6 sites and biological data at 5 sites on the Boise River between Veterans Memorial Parkway in Boise and Star, Idaho (17050114), from October 1987 to March 1988. Data were collected to determine whether trace elements from effluents d...

118

Salmon Supplementation Studies in Idaho Rivers; Field Activities Conducted on Clear and Pete King Creeks, 2002 Annual Report.  

SciTech Connect

In 2002 the Idaho Fisheries Resource Office continued working as a cooperator on the Salmon Supplementation Studies in Idaho Rivers (ISS) project on Pete King and Clear creeks. Data relating to supplementation treatment releases, juvenile sampling, juvenile PIT tagging, broodstock spawning and rearing, spawning ground surveys, and snorkel surveys were used to evaluate the project data points and augment past data. Supplementation treatments included the release of 51,329 left ventral-clipped smolts into Clear Creek (750 were PIT tagged), and 12,000 unmarked coded-wire tagged parr into Pete King Creek (998 were PIT tagged). Using juvenile collection methods, Idaho Fisheries Resource Office staff PIT tagged and released 579 naturally produced spring chinook juveniles in Clear Creek, and 54 on Pete King Creek, for minimum survival estimates to Lower Granite Dam. For Clear Creek, minimum survival estimates to Lower Granite Dam of hatchery produced supplementation and naturally produced PIT tagged smolts, were 36.0%, and 53.1%, respectively. For Pete King Creek, minimum survival estimates to Lower Granite Dam, of hatchery produced supplementation smolts and naturally produced smolts PIT tagged as parr and presmolts, were 18.8%, and 8.3%, respectively. Adults collected for broodstock in 2002 represented the final adult broodstock group collected for the ISS project. Twenty-six ventral clipped, and 28 natural adult spring chinook were transported above the weir. Monitoring and evaluation of spawning success was continued on Clear and Pete King creeks. A total of 69 redds were counted and 79 carcasses were recovered on Clear Creek. Two redds were observed and no carcasses were collected on Pete King Creek.

Bretz, Justin K.; Olson, Jill M. (US Fish and Wildlife Service, Idaho Fishery Resource Office, Ahsahka, ID)

2003-03-01

119

Salmon Supplementation Studies in Idaho Rivers; Field Activities Conducted on Clear and Pete King Creeks, 2001 Annual Report.  

SciTech Connect

In 2001 the Idaho Fisheries Resource Office continued as a cooperator on the Salmon Supplementation Studies in Idaho Rivers (ISS) project on Pete King and Clear creeks. Data relating to supplementation treatment releases, juvenile sampling, juvenile PIT tagging, brood stock spawning and rearing, spawning ground surveys, and snorkel surveys were used to evaluate project data points and augment past data. Due to low adult spring Chinook returns to Kooskia National Fish Hatchery (KNFH) in brood year 1999 there was no smolt supplementation treatment release into Clear Creek in 2001. A 17,014 spring Chinook parr supplementation treatment (containing 1000 PIT tags) was released into Pete King Creek on July 24, 2001. On Clear Creek, there were 412 naturally produced spring Chinook parr PIT tagged and released. Using juvenile collection methods, Idaho Fisheries Resource Office staff PIT tagged and released 320 naturally produced spring Chinook pre-smolts on Clear Creek, and 16 natural pre-smolts on Pete King Creek, for minimum survival estimates to Lower Granite Dam. There were no PIT tag detections of brood year 1999 smolts from Clear or Pete King creeks. A total of 2261 adult spring Chinook were collected at KNFH. Forty-three females were used for supplementation brood stock, and 45 supplementation (ventral fin-clip), and 45 natural (unmarked) adults were released upstream of KNFH to spawn naturally. Spatial and temporal distribution of 37 adults released above the KNFH weir was determined through the use of radio telemetry. On Clear Creek, a total of 166 redds (8.2 redds/km) were observed and data was collected from 195 carcasses. Seventeen completed redds (2.1 redds/km) were found, and data was collected data from six carcasses on Pete King Creek.

Gass, Carrie; Olson, Jim M. (US Fish and Wildlife Service, idaho Fishery Resource Office, Ahsahka, ID)

2004-11-01

120

Geologic Controls of Hydraulic Conductivity in the Snake River Plain Aquifer At and Near the Idaho National Engineering and Environmental Laboratory, Idaho  

SciTech Connect

The effective hydraulic conductivity of basalt and interbedded sediment that compose the Snake River Plain aquifer at and near the Idaho National Engineering and Environmental Laboratory (INEEL) ranges from about 1.0x10 -2 to 3.2x10 4 feet per day (ft/d). This six-order-of-magnitude range of hydraulic conductivity was estimated from single-well aquifer tests in 114 wells, and is attributed mainly to the physical characteristics and distribution of basalt flows and dikes. Hydraulic conductivity is greatest in thin pahoehoe flows and near-vent volcanic deposits. Hydraulic conductivity is least in flows and deposits cut by dikes. Estimates of hydraulic conductivity at and near the INEEL are similar to those measured in similar volcanic settings in Hawaii. The largest variety of rock types and the greatest range of hydraulic conductivity are in volcanic rift zones, which are characterized by numerous aligned volcanic vents and fissures related to underlying dikes. Three broad categories of hydraulic conductivity corresponding to six general types of geologic controls can be inferred from the distribution of wells and vent corridors. Hydraulic conductivity of basalt flows probably is increased by localized fissures and coarse mixtures of interbedded sediment, scoria, and basalt rubble. Hydraulic conductivity of basalt flows is decreased locally by abundant alteration minerals of probable hydrothermal origin. Hydraulic conductivity varies as much as six orders of magnitude in a single vent corridor and varies from three to five orders of magnitude within distances of 500 to 1,000 feet. Abrupt changes in hydraulic conductivity over short distances suggest the presence of preferential pathways and local barriers that may greatly affect the movement of ground water and the dispersion of radioactive and chemical wastes downgradient from points of waste disposal.

S. R. Anderson; M. A. Kuntz; L. C. Davis

1999-02-01

121

Escapement Monitoring of Adult Chinook Salmon in the Secesh River and Lake Creek, Idaho, 1999 Annual Report.  

SciTech Connect

Underwater time-lapse video technology was used to monitor adult spring and summer chinook salmon abundance in spawning areas in Lake Creek and the Secesh River, Idaho, in 1999. This technique is a passive methodology that does not trap or handle this Endangered Species Act listed species. This was the third year of testing the remote application of this methodology in the Secesh River drainage. Secesh River chinook salmon represent a wild salmon spawning aggregate that has not been directly supplemented with hatchery fish. Adult chinook salmon spawner abundance was estimated in Lake Creek with the remote time-lapse video application. Adult spawner escapement into Lake Creek in 1999 was 67 salmon. Significant upstream and downstream spawner movement affected the ability to determine the number of fish that contributed to the spawning population. The first passage on Lake Creek was recorded on July 11, two days after installation of the fish counting station. Peak net upstream adult movement occurred at the Lake Creek site on July 20, peak of total movement activity was August 19 with the last fish observed on August 26. A minimum of 133 adult chinook salmon migrated upstream past the Secesh River fish counting station to spawning areas in the Secesh River drainage. The first upstream migrating adult chinook salmon passed the Secesh River site prior to the July 15 installation of the fish counting station. Peak net upstream adult movement at the Secesh River site occurred July 19, peak of total movement was August 15, 17 and 18 and the last fish passed on September 10. Migrating salmon in the Secesh River and Lake Creek exhibited two behaviorally distinct segments of fish movement. Mainly upstream only, movement characterized the first segment. The second segment consisted of upstream and downstream movement with very little net upstream movement. Estimated abundance was compared to single and multiple-pass redd count surveys within the drainage. There were differences between the two methodologies. The fish counting stations did not impede salmon movements, nor was spawning displaced downstream. Fish moved freely upstream and downstream through the fish counting structures. Fish movement was greatest between the period of 10:00 p. m. and 4:00 a. m. There appeared to be a segment of ''nomadic'' males that moved into and out of the spawning area, apparently seeking other mates to spawn with. This methodology has the potential to provide more consistent and accurate salmon spawner abundance information than single-pass and multiple-pass spawning ground surveys. Accurate adult escapement information would allow managers to determine if recovery actions benefited listed chinook salmon in tributary streams.

Faurot, Dave; Kucera, Paul A. (Nez Perce Tribe, Lapwai, ID)

2001-04-01

122

WATER QUALITY STATUS REPORT, SALMON RIVER, MAIN STEM (HEADWATERS TO BELOW MIDDLE FORK), IDAHO, 1977  

EPA Science Inventory

Fifteen water quality stations in the Salmon River Basin (17060201, 17060203) were sampled bi-weekly for a year. Eight of the stations were on the Main Salmon River and the remaining seven represented the major tributaries. This portion of the study extended from Stanley to bel...

123

Gas Bubble Trauma Monitoring in the Clearwater River Drainage Idaho 1999.  

National Technical Information Service (NTIS)

A team of two people electroshocked 39 miles of the lower Clearwater River and 1.5 miles of the North Fork Clearwater River below Dworshak Dam during the spring and summer months of 1999. This team monitored gas bubble trauma (GBT) on resident fish specie...

E. Schriever T. Cochnauer T. Feldner

2000-01-01

124

Data summary report on short-term turbidity monitoring of pipeline river crossings in the Moyie River, Boundary County, Idaho: PGT-PG&E Pipeline Expansion Project  

SciTech Connect

A water-quality monitoring program was implemented for Bechtel Corporation to measure the short-term increases in turbidity in the Moyie River caused by construction activities of the Pacific Gas Transmission-Pacific Gas & Electric Pipeline Expansion Project. Construction of the buried, 42-in.-diameter, steel pipeline, during the summer of 1992, involved eight wet crossings of the Moyie River along the 13-mi section of pipeline immediately south of the Canadian-United States border in Boundary County, Idaho. This report summarizes the sampling and analysis protocol used and gives the results and observations for each of the eight crossings. The data obtained from this monitoring program, in addition to satisfying regulatory requirements for the Pipeline Expansion Project, will contribute to an ongoing long-term study of the Moyie River crossings being performed for the Gas Research Institute by Argonne National Laboratory. The purpose of this document is strictly limited to reporting the results of the monitoring program. Interpretation of the data is not within the scope of this report.

Gowdy, M.J.; Smits, M.P.; Wilkey, P.L.; Miller, S.F.

1994-03-01

125

Steady-State and Transient Groundwater Flow and Advective Transport, Eastern Snake River Plain Aquifer, Idaho National Laboratory and Vicinity, Idaho  

NASA Astrophysics Data System (ADS)

Three-dimensional steady-state and transient models of groundwater flow and advective transport through the fractured basalts and interbedded sediments of the Eastern Snake River Plain (ESRP) aquifer were developed by the U.S. Geological Survey in cooperation with the U.S. Department of Energy. The model domain covers an area of 1,940 square miles that includes most of the Idaho National Laboratory (INL). A 50-year history of waste disposal at the INL has resulted in measurable concentrations of waste contaminants in the aquifer. Numerical models simulated 1980 steady-state conditions and transient flow for 1980-95. In the transient model, streamflow infiltration was the major stress. The models were calibrated using the parameter-estimation program incorporated in MODFLOW-2000. The steady-state model reasonably simulated the observed water-table altitude and gradients. Simulation of transient conditions reproduced changes in the flow system resulting from episodic infiltration from the Big Lost River. Analysis of simulations shows that flow is (1) dominantly horizontal through interflow zones in basalt, vertical anisotropy resulting from contrasts in hydraulic conductivity of different types of basalt and the interbedded sediments, (2) temporally variable due to streamflow infiltration from the Big Lost River, and (3) moving downward downgradient of the INL. Particle-tracking simulations were used to evaluate how simulated groundwater flow paths and travel times differ between the steady-state and transient flow models, and how well model-derived groundwater flow directions and velocities compare to independently-derived estimates. Particle tracking also was used to simulate the growth of tritium plumes originating at two INL facilities over a 16 year period under steady-state and transient flow conditions (1953-68). The shape, dimensions, and areal extent of these plumes were compared to a map of the plumes for 1968 from tritium releases beginning in 1952. Collectively, the particle-tracking simulations indicate that groundwater flow paths and velocities, based on uncalibrated estimates of porosity, are influenced by the dynamic character of the water table and the large contrasts in the hydraulic properties of the media, primarily hydraulic conductivity. Simulation results also indicate that temporal changes in the local hydraulic gradient can account for some of the observed dispersion of contaminants in the aquifer near the major sources of contamination and perhaps the majority of the observed dispersion several miles downgradient of these facilities. The distance downgradient of the facilities where simulated particle plumes were able to reasonably reproduce the 1968 tritium plume extended only to the boundary separating sediment-rich from sediment-poor aquifer layers about 4 mi downgradient of the contaminant source. Particle plumes simulated beyond this boundary were narrow and long, and did not reasonably reproduce the shape, dimensions, or position of the leading edge of the tritium plume; however, few data were available to characterize its true areal extent and shape.

Fisher, J. C.; Ackerman, D. J.; Rousseau, J. P.; Rattray, G. W.

2009-12-01

126

Paleomagnetic correlation of the surface and subsurface stratigraphy in the southern part of the Idaho National Laboratory, eastern Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

To refine the geologic framework used in conceptual and numerical models of groundwater flow and contaminant transport at and near the Idaho National Laboratory (INL), cross sections of the subsurface stratigraphy have been created using paleomagnetic inclination and polarity measurements on basalt flows from 51 coreholes and 83 surface sites. Paleomagnetic data were used to correlate surface and subsurface basalt stratigraphy, determine relative ages, and, in conjunction with other studies, determine the absolute age of some basalt flows. From stratigraphic top to bottom, key results include: Quaking Aspen Butte flows erupted from Quaking Aspen Butte south of the INL, flowed northeast, and are found in the subsurface in corehole USGS 132. Vent 5206 flows, erupted near the southwestern border of the INL, flowed north and east, and are found in the subsurface in coreholes USGS 132, USGS 129, USGS 131, USGS 127, USGS 130, USGS 128, and STF-AQ-01. Mid Butte flows erupted north of U.S. Highway 20, flowed northwest, and are found in the subsurface at coreholes ARA-COR-005 and STF-AQ-01. High K20 flows erupted from a vent near the Idaho Nuclear Technology and Engineering Center, flowed south and east, and are found in the subsurface in coreholes USGS 131, USGS 127, USGS 130, USGS 128, USGS 123, STF-AQ-01, and ARA-COR-005. Vent 5252 flows erupted just south of U.S. Highway 20 near Middle and East Buttes, flowed northwest and are found in the subsurface in coreholes ARA-COR-005, STF-AQ-01, USGS 130, USGS 128, ICPP 214, USGS 123, ICPP 023, USGS 121, USGS 127, and USGS 131. The Big Lost Reversed Polarity Cryptochron flows erupted from a now-buried vent near the Radioactive Waste Management Complex, flowed southwest to corehole USGS 135, and northeast to coreholes USGS 132, USGS 129, USGS 131, USGS 127, USGS 130, STF-AQ-01, and ARA-COR-005. AEC Butte flows erupted from AEC Butte near the Advanced Test Reactor Complex and flowed south to corehole Middle 1823, northwest to corehole USGS 134, northeast to coreholes USGS 133 and NRF 7P, and south to coreholes USGS 121, ICPP 023, USGS 123, and USGS 128. These results demonstrate that coreholes a few kilometers apart have stratigraphic successions that correlate over tens to hundreds of meters of depth. Correlations between coreholes separated by greater distances are less consistent since some stratigraphic sequences are missing and (or) added, or are at different depths. The Big Lost, AEC Butte, and flows of similar age show subsidence towards the Big Lost Trough. Cross-sections in the southwestern INL, through the unsaturated zone and the top of the saturated zone of the eastern Snake River Plain aquifer show very slight tilting to the southeast towards the Axial Volcanic Zone.

Hodges, M. K.; Davis, L. C.; Champion, D. E.

2010-12-01

127

Sediment Transport Data and Related Information for Selected Coarse-Bed Streams and Rivers in Idaho.  

National Technical Information Service (NTIS)

This report and associated web site files provide sediment transport and related data for coarse-bed streams and rivers to potential users. Information on bedload and suspended sediment transport, streamflow, channel geometry, channel bed material, floodp...

J. G. King W. W. Emmett P. J. Whiting R. P. Kenworthy J. Barry

2004-01-01

128

Streamflow Trends in the Spokane River and Tributaries, Spokane Valley/Rathdrum Prairie, Idaho and Washington.  

National Technical Information Service (NTIS)

A clear understanding of the aquifer and river dynamics within the Spokane Valley/Rathdrum Prairie (SVRP) is essential in making proper management decisions concerning ground-water and surface-water appropriations. Management of the Spokane Valley/Rathdru...

J. E. Hortness J. J. Covert

2005-01-01

129

Climatic and Tectonic Controls on Alluvial Fan Evolution: The Lost River Range, Idaho  

Microsoft Academic Search

In the northern Basin &Range, alluvial fans developed along the Lost River range-front consist of several distinct inset fan segments with concave-up radial profiles. Multiple large radius (>5 km), shallow (2- 3°), alluvial fans extend across and beyond the active, ~140-km-long, normal Lost River fault. These large fans are relict features, formed by major sheetfloods that occurred intermittently between ~15-180

R. J. Phillips; J. L. Pierce; W. D. Sharp; K. L. Pierce

2006-01-01

130

Thrust segment from the Antler orogeny identified north of the Snake River Plain, south-central Idaho  

SciTech Connect

A small segment of folded thrust fault places silicified, cleaved, folded, graptolite-bearing black mudstone, sandstone, and minor granule conglomerate of the Ordovician Phi Kappa Formation over unnamed cleaved, yellow, calcareous siltstone and silty limestone of Devonian to Silurian age in the Long Canyon area near Fish Creek Reservoir, within a kilometer of the north-central margin of the Snake River Plain. The thrust fault and rocks of both hanging wall and footwall are overlain by sandy limestone and pebble conglomerate of the Middle Pennsylvanian Hailey Member of the Wood River Formation along a locally faulted unconformable contact. Thus, the age of the thrust is bracketed as post-Devonian and pre-Middle Pennsylvanian, a period that encompasses the Antler orogeny. The Long Canyon thrust fault is the first direct evidence of contraction within rocks of the postulated Mississippian Antler highland in western Idaho. Indirect evidence such as penetrative axial plane cleavage in Devonian argillites of the Milligen Formation, not present in younger argillites, has been recognized for several years. The entire sequence of Ordovician through Pennsylvanian rocks constitutes the southernmost exposure of the hanging wall of the Mesozoic Pioneer thrust fault system. In this area, the footwall of the Pioneer thrust comprises Silurian through Devonian platform carbonate rocks overlain unconformably by Mississippian orogenic detritus derived from the western Antler highland.

Skipp, B. (Geological Survey, Denver, CO (United States))

1993-04-01

131

Lead in hawks, falcons and owls downstream from a mining site on the Coeur D'Alene river, Idaho  

USGS Publications Warehouse

Mining and smelting at Kellogg-Smelterville, Idaho, resulted in high concentrations of lead in Coeur d'Alene (CDA) River sediments and the floodplain downstream, where American Kestrels (Falco sparverius), Northern Harriers (Circus cyaneus), Red-tailed Hawks (Buteo jamaicensis), Great Horned Owls (Bubo virginianus), and Western Screech-owls (Otus kennicotti) nested. Nestling American Kestrels contained significantly higher (P=0.0012) blood lead concentrations along the CDA River (0.24 ?g/g, wet wt) than the nearby reference area (0.087 ?g/g). A 35% inhibition of blood *-aminolevulinic acid dehydratase (ALAD) in nestling Northern Harriers (P=0.0001), 55% in nestling American Kestrels (P=0.0001) and 81% in adult American Kestrels (P=0.0004) provided additional evidence of lead exposure in the CDA River population. In nestling American Kestrels and Northern Harriers, ALAD activity was negatively correlated with lead in blood. An earlier report on Ospreys (Pandion haliaetus) showed slightly less inhibition of ALAD than in American Kestrels, but no significant reduction in hemoglobin or hematocrit and no negative influence on production rates. The adult and nestling American Kestrels along the CDA River contained about twice as much blood lead as Ospreys during the same years (adult 0.46 vs. 0.20 ?g/g, and nestling 0.24 vs. 0.09 ?g/g), but adults showed a 7.5% reduction in hemoglobin (P=0.0356) and nestlings an 8.2% reduction in hemoglobin (P=0.0353) and a 5.8% reduction in hematocrit (P=0.0482). We did not observe raptor deaths related to lead, and although the production rate for American Kestrels was slightly lower along the CDA River, we found no significant negative relation between productivity and lead. Limited data on the other raptors provide evidence of exposure to lead along the CDA River. Several traits of raptors apparently reduce their potential for accumulating critical levels of lead which is primarily stored in bones of prey species.

Henny, C. J.; Blus, L. J.; Hoffman, D. J.; Grove, R. A.

1994-01-01

132

Numerical Model of Channel and Aquatic Habitat Response to Sediment Pulses in Mountain Rivers of Central Idaho  

NASA Astrophysics Data System (ADS)

Mountain rivers in central Idaho receive pulsed sediment inputs from a variety of mass wasting processes (side-slope landslides, rockfalls, and tributary debris flows). Tributary debris flows and hyperconcentrated flows are particularly common due to winter "rain-on-snow" events and summer thunderstorms, the effects of which are amplified by frequent wildfire and resultant changes in vegetation, soil characteristics, and basin hydrology. Tributary confluences in the study area are commonly characterized by debris fans built by these repeated sediment pulses, providing long-term controls on channel slope, hydraulics and sediment transport capacity in the mainstem channel network. These long-term impacts are magnified during debris-flow events, which deliver additional sediment and wood debris to the fan and may block the mainstem river. These changes in physical conditions also influence local and downstream habitat for aquatic species, and can impact local human infrastructure (roads, bridges). Here, we conduct numerical simulations using a modified version of Cui's [2005] network routing model to examine bedload transport and debris-fan evolution in medium- sized watersheds (65-570 km2) of south-central Idaho. We test and calibrate the model using data from a series of postfire debris-flow events that occurred from 2003-4. We investigate model sensitivity to different controlling factors (location of the pulse within the stream network, volume of the pulse, and size distribution of the input material). We predict that on decadal time scales, sediment pulses cause a local coarsening of the channel bed in the vicinity of the sediment input, and a wave of downstream fining over several kilometers of the river (as long as the pulse material is not coarser than the stream bed itself). The grain-size distribution of the pulse influences its rate of erosion, the rate and magnitude of downstream fining, and the time required for system recovery. The effects of textural fining on spawning habitat depend on the size of sediment in the wave relative to that of the downstream channel; fining can improve spawning habitat availability in channels that are otherwise too coarse, or degrade habitat availability in finer-grained channels. Despite the perceived negative effects of sediment pulses, they can be important sources of gravel and wood debris, creating downstream spawning sites and productive wood-forced habitats. Field observations illustrate that opportunistic salmonids will spawn along the margins of recently deposited debris fans, emphasizing the biological value of such disturbances and the plasticity of salmonids to natural disturbances.

Lewicki, M.; Buffington, J. M.; Thurow, R. F.; Isaak, D. J.

2006-12-01

133

Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon  

SciTech Connect

Three geochemical methods were used to determine chemical reactions that control solute concentrations in the Snake River Plain regional aquifer system: (1) calculation of a regional solute balance within the aquifer and of mineralogy in the aquifer framework to identify solute reactions, (2) comparison of thermodynamic mineral saturation indices with plausible solute reactions, and (3) comparison of stable isotope ratios of the groundwater with those in the aquifer framework. The geothermal groundwater system underlying the main aquifer system was examined by calculating thermodynamic mineral saturation indices, stable isotope ratios of geothermal water, geothermometry, and radiocarbon dating. Water budgets, hydrologic arguments, and isotopic analyses for the eastern Snake River Plain aquifer system demonstrate that most, if not all, water is of local meteoric and not juvenile or formation origin. Solute balance, isotopic, mineralogic, and thermodynamic arguments suggest that about 20% of the solutes are derived from reactions with rocks forming the aquifer framework. Reactions controlling solutes in the western Snake river basin are believed to be similar to those in the eastern basin but the regional geothermal system that underlies the Snake river Plain contains total dissolved solids similar to those in the overlying Snake River Plain aquifer system but contains higher concentrations of sodium, bicarbonate, silica, fluoride, sulfate, chloride, arsenic, boron, and lithium, and lower concentrations of calcium, magnesium, and hydrogen. 132 refs., 30 figs., 27 tabs.

Wood, W.W.; Low, W.H.

1987-01-01

134

NON POINT SOURCE BASIN STATUS EVALUATION, LOWER SNAKE RIVER BASIN, IDAHO, JULY 1976  

EPA Science Inventory

Region 10 has developed a nonpoint source assessment approach to assist EPA planners, land agencies, and state and local agencies in identifying probable nonpoint sources and determining their effect upon the fishable-swimmable aspect of Regional streams and rivers. Generally th...

135

Solute geochemistry of the Snake River Plain regional aquifer system, Idaho and eastern Oregon  

Microsoft Academic Search

Three geochemical methods were used to determine chemical reactions that control solute concentrations in the Snake River Plain regional aquifer system: (1) calculation of a regional solute balance within the aquifer and of mineralogy in the aquifer framework to identify solute reactions, (2) comparison of thermodynamic mineral saturation indices with plausible solute reactions, and (3) comparison of stable isotope ratios

W. W. Wood; W. H. Low

1987-01-01

136

Evaluate status of pacific lamprey in the Clearwater River drainage, Idaho: annual report 2000.  

National Technical Information Service (NTIS)

Recent decline of Pacific lamprey Lampetra tridentata adult migrants to the Snake River drainage has focused attention on the species. Adult returns in 1995-1999 were more than ten magnitudes less than returns in the early 1960's. Human activities in the ...

T. Cochnauer C. Claire

2000-01-01

137

Geophysical Logging Case History of the Raft River Geothermal System, Idaho.  

National Technical Information Service (NTIS)

Drilling to evaluate the geothermal resource in the Raft River Valley began in 1974 and resulted in the discovery of a geothermal reservoir at a depth of approximately 1523 m (500 ft). Several organizations and companies have been involved in the geophysi...

J. K. Applegate T. A. Moens

1980-01-01

138

Geophysical logging case history of the Raft River geothermal system, Idaho  

Microsoft Academic Search

Drilling to evaluate the geothermal resource in the Raft River Valley began in 1974 and resulted in the discovery of a geothermal reservoir at a depth of approximately 1523 m (500 ft). Several organizations and companies have been involved in the geophysical logging program. There is no comprehensive report on the geophysical logging, nor has there been a complete interpretation.

J. K. Applegate; T. A. Moens

1980-01-01

139

CROOKED RIVER, IDAHO STREAM SURVEY AND IN-SITU TOXICITY RESULTS, 1986  

EPA Science Inventory

This report summarizes results from an investigation of Crooked River (17060305) and adjacent dredge ponds. Chemical and physical water quality parameters and in-situ toxicity were characterized for 9 sites throughout the reach. The work was conducted at the request of ID Depar...

140

Characterize and Quantify Residual Steelhead in the Clearwater River, Idaho, 1999-2000 Progress Report.  

SciTech Connect

During 1999-2002 we determined whether size at release and release site influenced emigration success and survival of hatchery steelhead smolts raised at Dworshak National Fish Hatchery and released into the Clearwater River drainage. We marked 4,500 smolts each year with Passive Integrated Transponder Tags (PIT-tags) which enabled us to track emigration and estimate survival through mainstem Snake and Columbia river dams. Hatchery steelhead raised in System I freshwater were significantly smaller than those raised in warmer System II re-use water (196 mm, 206 mm, 198 mm and 201 mm System I; 215 mm, 213 mm, 206 mm and 209 mm System II). However, there was no significant difference in detection rates to mainstem observation sites between the two groups (65%, 58%, 78% and 55% System I; 69%, 59%, 74% and 53% System II). Survival estimates to Lower Granite Dam were also not significant between the two groups (72%, 81%, 80% and 77% System I; 77%, 79%, 77%, and 72% System II). Smolts less than 180 mm FL were less likely to be detected than larger smolts. Hatchery steelhead smolts released into Clear Creek, the South Fork Clearwater River and the Clearwater River at Dworshak National Fish Hatchery had significantly different lengths each year, but there was no discernible pattern due to random egg takes and rearing systems. Detection rates to mainstem observation sites for smolts released into Clear Creek were significantly less than the other two groups in all years except 2002 (62%, 57%, 71%, and 57% Clear Creek; 68%, 63%, 73% and 61% South Fork Clearwater River; 70%, 59%, 78% and 55% Clearwater River). However, survival rates to Lower Granite Dam were not significantly different (73%, 65%, 78%, and 77% Clear Creek; 79%, 72%, 79% and 76% South Fork Clearwater River; 81%, 76%, 80% and 83% Clearwater River). Similar to the size at release group, smolts less than 180 mm FL were less likely to get detected than larger smolts. Smolts from both size at release and release site groups that were mature at tagging rarely migrated downstream. If smolts migrated they did it in the same year they were released, as less than 0.02% were observed migrating the second year. We sampled the Clearwater River, North Fork Clearwater River, Bedrock Creek, Big Canyon Creek, Cottonwood Creek, Jacks Creek and the Dworshak National Fish Hatchery adult ladder to collect residual hatchery steelhead. We PIT-tagged and released 3,651 hatchery steelhead and collected 645 hatchery steelhead for coded wire tags. Most residual hatchery steelhead were caught within 4 rkm of Dworshak National Fish Hatchery. Hatchery steelhead sampled in the North Fork Clearwater River and the Dworshak Hatchery adult ladder were significantly larger than those sampled in the Clearwater River and lower tributaries in all years except 2001 (205 mm, 205 mm, 223 mm and 238 mm North Fork Clearwater River; 190 mm, 182 mm, 226 mm and 189 mm Clearwater River). Of the hatchery steelhead we PIT-tagged, only 12% were observed at downstream observation sites. Most migrants were tagged in the Clearwater River (91%) and were smaller than hatchery steelhead that were tagged but were not detected. Most migrants were detected in the same year they were tagged, but 14% held over and migrated in the second year after tagging. We documented migration outside of the normal window, as one detection occurred on October 31 at Lower Granite Dam. We recaptured 130 individual hatchery steelhead that we had tagged during sampling. Over 77% of the recaptures were within one km of where they were tagged, and 67% of the recaptures were tagged in the North Fork Clearwater River and the Dworshak Hatchery adult ladder. We calculated a mean growth rate of 0.27 mm/day for fish we recaptured. For those hatchery steelhead we PIT-tagged, the proportion of males was 13%, the rest we could not ascertain gender. All the males were precocious. Over 97% of the coded-wire tag recoveries came from hatchery steelhead released at Dworshak National Fish Hatchery. The Contribution group (random egg take and rearing system) comp

Brostrom, Jody K. (US Fish and Wildlife Service, Idaho Fishery Resource Office, Ahsahka, ID)

2006-08-01

141

WATER QUALITY STATUS REPORT, LITTLE SALMON RIVER, ADAMS COUNTY, IDAHO, 1976  

EPA Science Inventory

This survey was conducted to determine the point source impact of treatment sewage discharged from the New Meadows Wastewater Treatment lagoons on the Little Salmon River (17060210). Water quality data was collected semiannually from June 1970 to May 1975. Some of this data is ...

142

Evidence for Right-lateral Shear Along the Northwest Margin of the Eastern Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

Previous investigators have proposed that extension within the eastern Snake River Plain (ESRP) is accommodated by intrusion of dikes at a rate similar to the rate of extension in the surrounding Basin and Range. This hypothesis is primarily based on the lack of strike-slip offset along the northwest physiographic boundary of the ESRP, the lack of seismicity within the ESRP relative to the surrounding active Basin and Range, and the presence of NW-trending volcanic rift zones within the ESRP. The ESRP is a 400-km long region within the track of the Yellowstone Hotspot that extends from southern Idaho northeast into northwestern Wyoming. GPS data compiled for this study are used to test this hypothesis. Several institutions including the Idaho National Laboratory, National Geodetic Survey, Rensselaer Polytechnic Institute, and University of Utah observed GPS stations from 1994 to 2007 within the ESRP and surrounding region. The GPS velocities show the average orientation of horizontal GPS velocities in the adjacent northwest Basin and Range region is similar to the average orientation for the ESRP (N113°W vs N91°W, respectively), but the average magnitude of horizontal GPS velocities in the Basin and Range (1.4 ± 0.3 mm/yr) is less than that for the ESRP (2.2 ± 0.3 mm/yr). Additionally, the adjacent northwest Basin and Range extends at about 9 x 10-9 /yr with most of the deformation localized along three NW-trending normal faults (Lost River, Lemhi, and Beaverhead). In contrast, the ESRP extends at a rate that is an order of magnitude lower than the adjacent northwest Basin and Range and we see little indication of extension along the Great Rift or other volcanic rift zones over the 400 km length. The GPS differential motion along the region of the ESRP adjacent to the northwest Basin and Range indicates a NE-trending zone of right-lateral shear. Preliminary inversions of GPS velocities, earthquakes, faults, and volcanic features indicate this zone of right-lateral shear is located 10-20 km from the physiographic boundary between the ESRP and adjacent Basin and Range.

Payne, S. J.; McCaffrey, R.; King, R. W.

2007-12-01

143

Influences of Hatchery Supplementation, Spawner Distribution, and Habitat on Genetic Structure of Chinook Salmon in the South Fork Salmon River, Idaho  

Microsoft Academic Search

We evaluated the genetic influence of hatchery supplementation on distinct naturally spawning populations of Chinook salmon Oncorhynchus tshawytscha in the South Fork Salmon River (SFSR), Idaho. Genetic tissue samples were collected from unmarked natural-origin and McCall Fish Hatchery (MFH)-reared Chinook salmon carcasses, and fish were identified by an adipose fin clip at five main-stem sites located both upstream and downstream

Andrew P. Matala; Shawn R. Narum; William Young; Jason L. Vogel

2012-01-01

144

Movement, Swimming Speed, and Oxygen Consumption of Juvenile White Sturgeon in Response to Changing Flow, Water Temperature, and Light Level in the Snake River, Idaho  

Microsoft Academic Search

The flow of the Snake River downstream of Hells Canyon Dam, Idaho, frequently fluctuates as dam operators alter the amount of electrical load generated in response to moment-to-moment power needs (termed load-following). Flow fluctuations due to load-following have the potential to increase the energy used by juvenile white sturgeon Acipenser transmontanus that move to avoid unfavorable habitat or that alter

David R. Geist; Richard S. Brown; Valerie Cullinan; Steve R. Brink; Ken Lepla; Phil Bates; James A. Chandler

2005-01-01

145

Characterize and Quantify Residual Steelhead in the Clearwater River, Idaho, 1999 Annual Report.  

SciTech Connect

Although sample sizes were small during the 1999 field season, we were able to verify at least some residual steelhead survive the winter to persist in the Clearwater River. Hatchery steelhead were found in low numbers migrating up tributaries of the Clearwater River where wild A-run steelhead spawn. Data from this first year did not indicate differences in survival due to size, release site, or rearing system for steelhead reared at Dworshak National Fish Hatchery. This information needs to be compared over several (at least three) years for meaningful analysis. Final analysis will also include influences of water flow and temperature in emigration success. Based on one year of data, the majority of steelhead which do not emigrate during the first couple of weeks after release, are unlikely to emigrate at all.

Bigelow, Patricia E.; Larsen, Chris A. (US Fish and Wildlife Service, Idaho Fishery Resource Office, Ahsahka, ID)

2003-03-01

146

Drainage Basin Influences on Alluvial Fan Processes in the Lost River Range, Idaho  

Microsoft Academic Search

by many large (radius > 5 km) low angle (2-3 degree) alluvial fans developed across and beyond the ~140 km active Lost River normal fault (Crone et al., 1987). Stratigraphic exposures of fan sediments reveal these large fans are sheetflood-dominated (Patterson, 2006). Preliminary field observations indicate ~20-30 cm thick couplets of alternating ~5-15 cm and ~2-5 cm sub-angular, imbricated limestone-dominated

Michael Poulos

2009-01-01

147

Fish assemblages and environmental variables associated with hard-rock mining in the Coeur d'Alene River basin, Idaho  

USGS Publications Warehouse

As part of the U.S. Geological Survey's National Water Quality Assessment Program, fish assemblages, environmental variables, and associated mine densities were evaluated at 18 test and reference sites during the summer of 2000 in the Coeur d'Alene and St. Regis river basins in Idaho and Montana. Multimetric and multivariate analyses were used to examine patterns in fish assemblages and the associated environmental variables representing a gradient of mining intensity. The concentrations of cadmium (Cd), lead (Pb), and zinc (Zn) in water and streambed sediment found at test sites in watersheds where production mine densities were at least 0.2 mines/km2 (in a 500-m stream buffer) were significantly higher than the concentrations found at reference sites. Many of these metal concentrations exceeded Ambient Water Quality Criteria (AWQC) and the Canadian Probable Effect Level guidelines for streambed sediment. Regression analysis identified significant relationships between the production mine densities and the sum of Cd, Pb, and Zn concentrations in water and streambed sediment (r2 = 0.69 and 0.66, respectively; P < 0.01). Zinc was identified as the primary metal contaminant in both water and streambed sediment. Eighteen fish species in the families Salmonidae, Cottidae, Cyprinidae, Catostomidae, Centrarchidae, and Ictaluridae were collected. Principal components analysis of 11 fish metrics identified two distinct groups of sites corresponding to the reference and test sites, predominantly on the basis of the inverse relationship between percent cottids and percent salmonids (r = -0.64; P < 0.05). Streams located downstream from the areas of intensive hard-rock mining in the Coeur d'Alene River basin contained fewer native fish and lower abundances as a result of metal enrichment, not physical habitat degradation. Typically, salmonids were the predominant species at test sites where Zn concentrations exceeded the acute AWQC. Cottids were absent at these sites, which suggests that they are more severely affected by elevated metals than are salmonids.

Maret, T. R.; MacCoy, D. E.

2002-01-01

148

Lead exposure in passerines inhabiting lead-contaminated floodplains in the Coeur d'Alene River Basin, Idaho, USA  

USGS Publications Warehouse

Blood collected from song sparrows (Melospiza melodia) and American robins (Turdus migratorius) captured with mist nets in a lead-contaminated (assessment) area and nearby uncontaminated (reference) areas within the Coeur d'Alene Basin in northern Idaho was analyzed for d-aminolevulinic acid dehydratase activity (ALAD) and hematocrit levels, and livers were analyzed for lead. Mean ALAD inhibition in the assessment area was 51% in song sparrows and 75% in American robins. The proportion of the sampled population with ALAD inhibition >50% was calculated to be 43% for song sparrows and 83% for American robins. Assessment area hematocrit values for song sparrows (0 = 39.9) and American robins (0 = 39.5) were lower than in reference areas (0 = 42.4 for song sparrows and 40.2 for American robins); however, differences were not statistically significant (p > 0.05). Significantly higher levels of lead (wet weight) were found in livers from song sparrows captured on the assessment area (0 = 1.93 ppm) than on reference areas (0 = 0.10 ppm) (p = 0.0079). Study results indicate that 43% (95% confidence interval [CI] = 12.9-77.5%) of the song sparrows and 83% (95% CI = 41.8-99.2%) of the American robins inhabiting the floodplain along the Coeur d'Alene River in the assessment area are being exposed to lead at levels sufficient to inhibit ALAD by > 50%. Variability in lead exposure indicators was attributed to high variability in environmental lead concentrations in the Coeur d'Alene River Basin.

Johnson, G.D.; Audet, D.J.; Kern, J.W.; LeCaptain, L.J.; Strickland, M.D.; Hoffman, D.J.; McDonald, L.L.

1999-01-01

149

Assessing the accuracy of thermoluminescence for dating baked sediments beneath late Quaternary lava flows, Snake River Plain, Idaho  

SciTech Connect

Baked sediments beneath lava flows on the Snake River Plain, Idaho, with independent age control by either {sup 14}C or K/Ar dating were analyzed to evaluate the accuracy of the thermoluminescence (TL) technique. The age of flows ranges from {approximately}2 to 100 ka and multiple TL analyses by the total bleach method yielded ages that overlap at one sigma with independent chronologic control. The TL signal of one sample of baked sediment beneath a lava flow with an inferred age of at least 641 {plus_minus} 54 ka was near saturation, perhaps reflecting a relatively high environmental dose rate, and is not datable by TL. This study underscores several major limitations of luminescence geochronology, the natural spatial and temporal variability in environmental radioactivity and the susceptibility of silicate minerals to the growth and retention of a luminescence signal. Despite these limitations, the results demonstrate the utility of luminescence geochronology to date volcanic eruptive events during the Quaternary. 39 refs., 7 figs., 4 tabs.

Forman, S.L.; Pierson, J. [Ohio State Univ., Columbus, OH (United States); Valentine, G. [Los Alamos National Lab., NM (United States)] [and others

1994-08-10

150

Implications of spatial reservoir uncertainty for CO2 sequestration in the east Snake River Plain, Idaho (USA)  

NASA Astrophysics Data System (ADS)

Basalt-hosted hydrogeologic systems have been proposed for geologic CO2 sequestration based on laboratory research suggesting rapid mineralization rates. However, despite this theoretical appeal, little is known about the impacts of basalt fracture heterogeneity on CO2 migration at commercial scales. Evaluating the suitability of basalt reservoirs is complicated by incomplete knowledge of in-situ fracture distributions at depths required for CO2 sequestration. In this work, a numerical experiment is used to investigate the effects of spatial reservoir uncertainty for geologic CO2 sequestration in the east Snake River Plain, Idaho (USA). Two criteria are investigated: (1) formation injectivity and (2) confinement potential. Several theoretical tools are invoked to develop a field-based approach for geostatistical reservoir characterization and their implementation is illustrated. Geologic CO2 sequestration is simulated for 10 years of constant-rate injection at ~680,000 tons per year and modeled by Monte Carlo simulation such that model variability is a function of spatial reservoir heterogeneity. Results suggest that the spatial distribution of heterogeneous permeability structures is a controlling influence on formation injectivity. Analysis of confinement potential is less conclusive; however, in the absence of confining sedimentary interbeds within the basalt pile, rapid mineralization may be necessary to reduce the risk of escape.

Pollyea, Ryan M.; Fairley, Jerry P.

2012-06-01

151

Analysis of steady-state flow and advective transport in the Eastern Snake River Plain Aquifer System, Idaho  

SciTech Connect

The regional aquifer system of the eastern Snake River Plain is an important component of the hydrologic system in eastern Idaho. The aquifer was thought to be the largest unified ground-water reservoir on the North American continent but is probably second to the Floridian aquifer in the southeastern United States. Flow in the aquifer is from major recharge areas in the northeastern part of the plain to discharge areas in the southwestern part. A comprehensive analysis of the occurrence and movement of water in the aquifer was presented by Garabedian. The analysis included a description of the recharge and discharge, the hydraulic properties, and a numerical model of the aquifer. The purposes of this report are to: (1) describe compartments in the aquifer that function as intermediate and regional flow systems, (2) describe pathlines for flow originating at or near the water table, and (3) quantify traveltimes for adjective transport originating at or near the water table. The model constructed for this study and described in this report will aid those concerned with the management and protection of the aquifer. The model will serve as a tool to further our understanding of the aquifer and will aid in assessing the needs for future flow and transport studies of the aquifer.

Ackerman, D.J.

1995-10-01

152

A comparative evaluation of conceptual models for the Snake River Plain aquifer at the Idaho Chemical Processing Plant, INEL  

SciTech Connect

Geologic and hydrologic data collected by the United States Geological Survey (USGS) are used to evaluate the existing ground water monitoring well network completed in the upper portion of the Snake River Plain aquifer (SRPA) beneath the Idaho Chemical Processing Plant (ICPP). The USGS data analyzed and compared in this study include: (a) lithologic, geophysical, and stratigraphic information, including the conceptual geologic models intrawell, ground water flow measurement (Tracejector tests) and (c) dedicated, submersible, sampling group elevations. Qualitative evaluation of these data indicate that the upper portion of the SRPA is both heterogeneous and anisotropic at the scale of the ICPP monitoring well network. Tracejector test results indicate that the hydraulic interconnection and spatial configuration of water-producing zones is extremely complex within the upper portion of the SRPA. The majority of ICPP monitoring wells currently are equipped to sample ground water only the upper lithostratigraphic intervals of the SRPA, primarily basalt flow groups E, EF, and F. Depth-specific hydrogeochemical sampling and analysis are necessary to determine if ground water quality varies significantly between the various lithostratigraphic units adjacent to individual sampling pumps.

Prahl, C.J.

1992-01-01

153

Characterize and Quantify Residual Steelhead in the Clearwater River, Idaho, 2001 Annual Report.  

SciTech Connect

We tagged 4,505 hatchery steelhead from Dworshak National Fish Hatchery (NFH), with Passive Integrated Transponder (PIT) tags to evaluate factors contributing to residualism. Steelhead lengths from typical growth ponds (System I) averaged 8 mm less than those in System II and travel times were two days faster. Steelhead were released into Clear Creek, South Fork Clearwater River and directly from Dworshak NFH; detection rates were 75.7%, 77.9%, and 76.4%, respectively. The mean detection rates of steelhead by rearing system were 75.8%, 78.4%, and 74.7% for System I, System II, and System III. We PIT tagged an additional 1,131 hatchery steelhead in the North Fork and mainstem Clearwater rivers between April 9 and September 19. In the four tributaries sampled, 85 steelhead were PIT tagged and released, 57.6% were detected emigrating downstream. A total of 149 coded-wire tags were recovered; 18 were tagged at Dworshak NFH in 2000 and two in 1999. Additionally, 20 were released from the Clearwater Fish Hatchery and nine were released in Oregon. Although sample sizes were small, we were able to verify that at least 52 residual steelhead survived the winter to persist in the Clearwater River. These 52 steelhead were PIT tagged in 2000 and detected at Lower Granite Dam emigrating in 2001. Based on this years data, the majority of steelhead, which do not emigrate during the first couple of weeks after release, are unlikely to emigrate. Final analysis will also include influences of water flow and temperature in emigration success. This information needs to be compared over several years for meaningful analysis.

Larsen, Chris A.; Faler, Michael P. (US Fish and Wildlife Service, Idaho Fishery Resource Office, Ahsahka, ID)

2003-03-01

154

An integrated surface water-groundwater modeling in the Upper Snake River Basin, Idaho  

NASA Astrophysics Data System (ADS)

The Upper Snake River Basin area has a strong interaction between the river and the aquifer beneath that augments the water supply for irrigation, hydropower and minimal flows among others. It is important to quantify the flows under current and future climate conditions by integrating the surface and groundwater systems in order to partition the water balance components reasonably well. Both precipitation and irrigation return flows recharge the groundwater via infiltration and percolation when the unsaturated soil zone becomes saturated and the groundwater supplements the baseflow. The Variable Infiltration Capacity (VIC) model is a widely used macroscale hydrological model that assesses the hydrological impacts in the continental United States. MODFLOW is a popular groundwater model to calculate the groundwater flow. It also incorporates an algorithm to solve the unsaturated zone (UZF). In this study, a dynamic coupling will be developed between VIC and MODFLOW to predict the surface runoff and groundwater recharge in the basin. The available long-term historical streamflow and groundwater elevation data will be used to calibrate and validate the model.

Jin, X.; Sridhar, V. R.

2010-12-01

155

Quality of groundwater and surface water, Wood River Valley, south-central Idaho, July and August 2012  

USGS Publications Warehouse

Residents and resource managers of the Wood River Valley of south-central Idaho are concerned about the effects that population growth might have on the quality of groundwater and surface water. As part of a multi-phase assessment of the groundwater resources in the study area, the U.S. Geological Survey evaluated the quality of water at 45 groundwater and 5 surface-water sites throughout the Wood River Valley during July and August 2012. Water samples were analyzed for field parameters (temperature, pH, specific conductance, dissolved oxygen, and alkalinity), major ions, boron, iron, manganese, nutrients, and Escherichia coli (E.coli) and total coliform bacteria. This study was conducted to determine baseline water quality throughout the Wood River Valley, with special emphasis on nutrient concentrations. Water quality in most samples collected did not exceed U.S. Environmental Protection Agency standards for drinking water. E. coli bacteria, used as indicators of water quality, were detected in all five surface-water samples and in two groundwater samples collected. Some analytes have aesthetic-based recommended drinking water standards; one groundwater sample exceeded recommended iron concentrations. Nitrate plus nitrite concentrations varied, but tended to be higher near population centers and in agricultural areas than in tributaries and less populated areas. These higher nitrate plus nitrite concentrations were not correlated with boron concentrations or the presence of bacteria, common indicators of sources of nutrients to water. None of the samples collected exceeded drinking-water standards for nitrate or nitrite. The concentration of total dissolved solids varied considerably in the waters sampled; however a calcium-magnesium-bicarbonate water type was dominant (43 out of 50 samples) in both the groundwater and surface water. Three constituents that may be influenced by anthropogenic activity (chloride, boron, and nitrate plus nitrite) deviate from this pattern and show a wide distribution of concentrations in the unconfined aquifer, indicating possible anthropogenic influence. Time-series plots of historical water-quality data indicated that nitrate does not seem to be increasing or decreasing in groundwater over time; however, time-series plots of chloride concentrations indicate that chloride may be increasing in some wells. The small amount of temporal variability in nitrate concentrations indicates a lack of major temporal changes to groundwater inputs.

Hopkins, Candice B.; Bartolino, James R.

2013-01-01

156

Project Hotspot: Mineral chemistry of high-MgO basalts from the Kimama core, Snake River Scientific Drilling Project, Idaho  

NASA Astrophysics Data System (ADS)

Mineral compositions can be used to deduce magma crystallization temperatures and to infer key characteristics of magma source regions including delving into the plume or no-plume sources of intraplate basalts. To this end, mineral compositions in basalt acquired by the Snake River Scientific Drilling Project have been analyzed by electron microprobe. The samples are from the Kimama drill hole on the axis of the Central Snake River Plain, Idaho which was drilled through 1912 m of basalt and interbedded sediments. Five of the least evolved basalt flows (i.e., low Fe, Ti, and high Ni and Cr) were chosen based on semiquantitative analyses using a Bruker Tracer IV handheld X-ray fluorescence spectrometer. Phenocryst phases include olivine and plagioclase; many olivine phenocrysts also contain inclusions of Cr-Al-rich spinel. Groundmass phases are olivine, plagioclase, clinopyroxene, magnetite, and ilmenite. Olivine phenocrysts are normally zoned with cores of Fo 81-70; the rims of Fo 70-50 overlap with the compositions of olivine in the groundmass. Spinels included in olivines in the most MgO-rich lavas are Al-rich (up to 34 wt% Al2O3), similar to those in ocean island basalts (Barnes and Roeder, 2001) and some zone to higher Fe and Ti. Plagioclase phenocryst cores (An 76-65) overlap significantly with the compositions of groundmass plagioclase (An 72-40). Clinopyroxene is confined to the groundmass and creates an ophitic texture. Pyroxene compositions are typically: Wo 45-37, En 42-30, Fs 30-15 and more evolved pyroxenes trend towards Craters of the Moon pyroxenes which have lower Ca. Temperature and oxygen fugacity were calculated from magnetite-ilmenite pairs using QUILF (Anderson et al., 1993), which yielded temperatures of 750-1000°C and fO2 near or just below the QFM buffer. The magnetite-ilmenite pairs are all groundmass phases; thus, these are post-eruption temperatures and fO2 estimates. Olivine compositions were used to test if the source of the Snake River Plain basalts contains a subducted oceanic crustal component as suggested by Sobolev et al. (2005) and Herzberg (2011). The olivines in the Kimama core have Mn, Fe/Mn, and Ca concentrations that are similar to Hawaiian shield-building basalts, and are consistent with derivation of their parent magmas from pyroxenite sources, such as those hypothesized for some mantle plumes. However, Ni concentrations (500-1500 ppm) in olivines from Kimama are relatively low, and the olivines are too evolved (Fo <81) to be definitive with regard to the presence or absence of pyroxenite in the source.

Bradshaw, R. W.; Christiansen, E. H.; Dorais, M. J.; Potter, K. E.; Shervais, J. W.

2011-12-01

157

Víz alatti volt-e a mio-pliocén vulkánosság a Snake-síksági vulkánvidéken (Idaho, USA)? — Terepi megfigyelések, mint az ?skörnyezeti rekonstrukció eszközei How subaqueous was the volcanism in the Mio\\/Pliocene Snake River Plain (Idaho, USA) volcanic field? — Volcanological field observations as tools to reconstruct palaeoenvironments  

Microsoft Academic Search

The western Snake River Plain volcanic field in South-west Idaho is considered to be an extensive Mio-Pliocene volcanic field that formed voluminous lava shields, pahoehoe lava fields, scoria cones, and great variety of phreatomagmatic volcanoes. In many ways the Snake River Plain volcanic field is considered as a special type of volcanic fields, where broad, large volume shield volcanoes form

NÉMETH KÁROLY; CRAIG WHITE

158

Bimodal magmatism, basaltic volcanic styles, tectonics, and geomorphic processes of the eastern Snake River Plain, Idaho  

USGS Publications Warehouse

Geology presented in this field guide covers a wide spectrum of internal and surficial processes of the eastern Snake River Plain, one of the largest components of the combined late Cenozoic igneous provinces of the western United States. Focus is on widespread Quaternary basaltic plains volcanism that produced coalescent shields and complex eruptive centers that yielded compositionally evolved magmas. The guide is constructed in several parts beginning with discussion sections that provide an overview of the geology followed by road directions, with explanations, for specific locations. The geology overview briefly summarizes the collective knowledge gained, and petrologic implications made, over the past few decades. The field guide covers plains volcanism, lava flow emplacement, basaltic shield growth, phreatomagmatic eruptions, and complex and evolved eruptive centers. Locations and explanations are also provided for the hydrogeology, groundwater contamination, and environmental issues such as range fires and cataclysmic floods associated with the region.

Hughes, S. S.; Smith, R. P.; Hackett, W. R.; McCurry, M.; Anderson, S. R.; Ferdock, G. C.

1997-01-01

159

Gas Bubble Trauma Monitoring in the Clearwater River Drainage, Idaho 1998.  

SciTech Connect

Select portions of the Clearwater and North Fork of the Clearwater rivers were electroshocked to estimate the incidence of gas bubble trauma (GBT) occurring in resident fish populations for the spring and summer months of 1998. The study area was divided into four sections and sampled weekly during periods of spill and non-spill from Dworshak Dam. Five thousand five hundred and forty one fish, representing 22 different species, were captured and examined for GBT. Two fish were detected with signs of GBT; exhibiting the lowest incidence of GBT in the last four years (0.04%). Reduced discharge and lower levels of total dissolved gases may have resulted in lower incidence of GBT in the 1998 monitoring period.

Cochnauer, Tim

1998-12-01

160

Regional geophysical setting of the Yellowstone Hotspot track along the Snake River Plain, Idaho, USA.  

NASA Astrophysics Data System (ADS)

We present an overview of the regional geophysical setting of the Yellowstone Hotspot track along the Snake River Plain (SRP) and surrounding regions in support of a proposed scientific drilling program for one of the world's youngest, best-preserved intra-continental hotspots. The preliminary scientific drilling plan is to core a series of intermediate-depth drill holes near the axes of the western and eastern regions of SRP to understand the lithospheric response to the influence of the Yellowstone Hotspot. Geophysics plays an important role in all aspects of the proposed drilling activities: site selection prior to drilling, measuring physical rock properties during drilling, and perhaps long-term monitoring within one of the completed drill holes. To aid in the site- selection process, we compile existing geophysical data that includes seismic, gravity, magnetic, heat flow, and magnetotelluric data. We also compiled rock property measurements (e.g., density, magnetic susceptibility, and magnetic remanence) and geologic data from maps and boreholes. Based on this compilation, we perform a regional assessment of major geophysically-defined structural features in the mid to upper crust of the SRP that may be specific targets for drilling. Such features include the prominent linear magnetic and gravity anomalies in the western SRP that may represent important feeders to early SRP volcanism. In the eastern Snake River Plain, the features include linear and curvilinear magnetic and gravity anomalies that may represent upwelling of mantle material or caldera rims. We present preliminary suggestions for possible areas of drill sites and identify the type of detailed geophysical surveys needed to select a suitable location. Additionally, this data set may serve as the start of a project-wide drilling database.

Glen, J. M.; Payne, S. J.; Bouligand, C.; Helm-Clark, C. M.; Champion, D. E.

2006-12-01

161

Oxygen and strontium isotopic studies of basaltic lavas from the Snake River plain, Idaho  

USGS Publications Warehouse

The Snake Creek-Williams Canyon pluton of the southern Snake Range crops out over an area of about 30 km2, about 60 km southeast of Ely, Nev. This Jurassic intrusion displays large and systematic chemical and mineralogical zonation over a horizontal distance of 5 km. Major-element variations compare closely with Dalyls average andesite-dacite-rhyolite over an SiO2 range of 63 to 76 percent. For various reasons it was originally thought that assimilation played a dominant role in development of the Snake Creek-Williams Canyon pluton. However, based on modeling of more recently obtained trace element and isotopic data, we have concluded that the zonation is the result of in-situ fractional crystallization, with little assimilation at the level of crystallization. This report summarizes data available for each of the mineral species present in the zoned intrusion. Special attention has been paid to trends We present oxygen and strontium isotopic data for olivine tholeiites, evolved (that is, differentiated and (or) contaminated) lavas, rhyolites, and crustal- derived xenoliths from the Snake River Plain. These data show that the olivine tholeiites are fairly uniform in d80 (5.1 to 6.2) and 87Sr/86Sr (0.7056 to 0.7076) and reveal no correlation between these ratios. The tholeiites are considered representative of mantle-derived magmas that have not interacted significantly with crustal material or meteoric water. The evolved lavas display a wider range in d 80 (5.6 to 7.6) and 87Sr/86Sr (0.708 to 0.717) with positive correlations between these ratios in some suites but not in others. Crustal xenoliths have high and variable 8?Sr/86Sr (0.715 to 0.830) and d80 values that vary widely (6.7 to 9.2) and are a few permil greater than d80 values of the Snake River basalts. Thus, isotopic data for the evolved lavas are permissive of small degrees of contamination by crustal rocks similar to the most d80-depleted xenoliths. The d80 enrichments in some evolved lavas also are consistent with crystal fractionation processes and do not necessarily require bulk interaction with crustal rocks. Enrichment in d80 but not in 87Sr/86Sr in one suite of evolved lavas suggests that crustal contamination may not be essential to the petrogenesis of those lavas. Other suites of evolved lavas display large variations in 87Sr/86Sr that reflect at least some selective contamination with 87St. Bulk solid/liquid oxygen-isotope fractionation factors (a's) calculated for the evolved lavas from Craters of the Moon National Monument are comparatively large. These a's are dependent upon the nature and proportions of phases removed by crystal fractionation; basaltic lava a's differ from latitic lava a?s in accordance with different phenocryst assemblages in these rocks. Snake River Plain rhyolites are isotopically distinct from both the analyzed crustal xenoliths and olivine tholeiites. Their origin remains poorly understood, but crustal or sub-crustal sources may be viable. In the first case, they must be derived by anatexis of material distinct from the analyzed crustal xenoliths. In the second case, they must be derived from material unlike the source for tholeiites. No cogenetic relation with the tholeiites seems likely on the basis of available data. that might relate to the variation in the chemical petrology of the pluton.

Leeman, William P.; Whelan, Joseph F.

1983-01-01

162

Application of a parameter-estimation technique to modeling the regional aquifer underlying the eastern Snake River plain, Idaho  

USGS Publications Warehouse

A nonlinear, least-squares regression technique for the estimation of ground-water flow model parameters was applied to the regional aquifer underlying the eastern Snake River Plain, Idaho. The technique uses a computer program to simulate two-dimensional, steady-state ground-water flow. Hydrologic data for the 1980 water year were used to calculate recharge rates, boundary fluxes, and spring discharges. Ground-water use was estimated from irrigated land maps and crop consumptive-use figures. These estimates of ground-water withdrawal, recharge rates, and boundary flux, along with leakance, were used as known values in the model calibration of transmissivity. Leakance values were adjusted between regression solutions by comparing model-calculated to measured spring discharges. In other simulations, recharge and leakance also were calibrated as prior-information regression parameters, which limits the variation of these parameters using a normalized standard error of estimate. Results from a best-fit model indicate a wide areal range in transmissivity from about 0.05 to 44 feet squared per second and in leakance from about 2.2x10 -9 to 6.0 x 10 -8 feet per second per foot. Along with parameter values, model statistics also were calculated, including the coefficient of correlation between calculated and observed head (0.996), the standard error of the estimates for head (40 feet), and the parameter coefficients of variation (about 10-40 percent). Additional boundary flux was added in some areas during calibration to achieve proper fit to ground-water flow directions. Model fit improved significantly when areas that violated model assumptions were removed. It also improved slightly when y-direction (northwest-southeast) transmissivity values were larger than x-direction (northeast-southwest) transmissivity values. The model was most sensitive to changes in recharge, and in some areas, to changes in transmissivity, particularly near the spring discharge area from Milner Dam to King Hill.

Garabedian, Stephen P.

1986-01-01

163

Climate-driven changes in scour regime and potential risks to salmonid survival in the Middle Fork Salmon River, Idaho  

NASA Astrophysics Data System (ADS)

The timing and magnitude of streamflow in the Pacific Northwest show measurable changes to twentieth century climate change. How the physical characteristics of fluvial systems in this region will respond, and how such changes will affect salmonid species remain unresolved questions. Flow and sediment transport conditions during the spawning and incubation periods are of particular concern. To enhance survival, the depth of egg burial must exceed the depth to which the bed scours during flows within the incubation period. Here, we investigate whether climate-driven shifts in the timing and depth of bed scour will impact salmonid spawning success in the Middle Fork Salmon River (MFSR), Idaho. The MFSR is a snowmelt-dominated system that supports federally listed salmonids, and is the largest unregulated basin in the conterminous US. As a first-order analysis, we ask whether changes in the magnitude and timing of the typical annual flood (i.e., bankfull) will affect scour risk for incubating salmonids. The spatial distribution of critical scour (that which exceeds egg burial depths for different salmonid populations of interest) is predicted at basin scales using current bed material grain size and bankfull shear stress. Grain size and bankfull shear stress are predicted from empirical functions of drainage area and slope determined from field surveys of 121 channel reaches, coupled with digital elevation models to extrapolate these relationships across the landscape. The spatial distribution of critical scour for predicted changes in bankfull flow (altered magnitude and timing) are compared to known salmonid spawning sites within the basin to assess location of scour risk. Future work will examine predicted changes in the magnitude and variability of flows during the incubation period, as well as differences in predicted impacts across a range of hydroclimates (snowmelt- vs. rainfall-dominated basins) in the western US and Europe.

Goode, J.; Buffington, J. M.; Isaak, D.; Tonina, D.; Tetzlaff, D.; Soulsby, C.; Tockner, K.; Thurow, R.; McKean, J. A.; Luce, C.; Wenger, S.; Nagel, D.

2010-12-01

164

Patterns of hybridization of nonnative cutthroat trout and hatchery rainbow trout with native redband trout in the Boise River, Idaho  

USGS Publications Warehouse

Hybridization is one of the greatest threats to native fishes. Threats from hybridization are particularly important for native trout species as stocking of nonnative trout has been widespread within the ranges of native species, thus increasing the potential for hybridization. While many studies have documented hybridization between native cutthroat trout Oncorhynchus clarkii and nonnative rainbow trout O. mykiss, fewer have focused on this issue in native rainbow trout despite widespread threats from introductions of both nonnative cutthroat trout and hatchery rainbow trout. Here, we describe the current genetic (i.e., hybridization) status of native redband trout O. mykiss gairdneri populations in the upper Boise River, Idaho. Interspecific hybridization was widespread (detected at 14 of the 41 sampled locations), but high levels of hybridization between nonnative cutthroat trout and redband trout were detected in only a few streams. Intraspecific hybridization was considerably more widespread (almost 40% of sampled locations), and several local populations of native redband trout have been almost completely replaced with hatchery coastal rainbow trout O. mykiss irideus; other populations exist as hybrid swarms, some are in the process of being actively invaded, and some are maintaining genetic characteristics of native populations. The persistence of some redband trout populations with high genetic integrity provides some opportunity to conserve native genomes, but our findings also highlight the complex decisions facing managers today. Effective management strategies in this system may include analysis of the specific attributes of each site and population to evaluate the relative risks posed by isolation versus maintaining connectivity, identifying potential sites for control or eradication of nonnative trout, and long-term monitoring of the genetic integrity of remaining redband trout populations to track changes in their status.

Neville, Helen M.; Dunham, Jason B.

2011-01-01

165

Hafnium Isotope Composition of Archean Zircons from Xenoliths of the Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

The composition, structure, spatial extent, and history of Archean crust buried beneath the Snake River Plain (SRP) are important for assessing the role of the lithosphere in regional igneous and tectonic activity. We report the U-Pb age and Hf isotope composition of Archean zircons from xenoliths entrained in Snake River Plain basalts. The xenoliths come from three localities on the SRP: Square Mountain (SM), Craters of the Moon National Monument (COM) and the Spencer-Kilgore (SK) volcanic field. Cathodoluminescence imaging and previous age dating of the zircons show that many are complexly zoned and for this reason a majority of the Hf isotope data was determined via laser ablation MC-ICPMS. We used a New Wave UP-213 Nd-YAG laser interfaced with a Thermo-Finnigan Neptune MC-ICPMS and Element II HR-ICPMS for Hf isotope determinations U-Pb age dating, respectively. Previous U-Pb age dating has shown that the zircons vary from having simple age systematics (e.g., SM xenolith DM103 has a single zircon age population of ~ 2.58 Ga) to highly complex (e.g., COM xenoliths have zircons with ages populations from 2.7 to 3.2 Ga). All these zircons are Archean in age, although some have young low-U overgrowths jacketing their Archean cores which yield 206Pb/238U ages of ~19-25 Ma. There is no evidence in any of the xenoliths for zircon growth between late Archean and these young ages which attests to the stability of the lithosphere during this span of time. The Hf isotopic compositions of the Archean zircon grains are extremely unradiogenic consistent with their old age. For example, a SM xenolith (DM103) has present-day ?Hf values of -61 to -58 (initial ?Hf values at 2.56 Ga of -5 to -2), comparable with data determined by conventional solution-based methods. Another zircon from a COM xenolith (COM22) has an Archean core (2.7 Ga) and a large overgrowth with an age of ~20 Ma. Remarkably the present day ?Hf values of the core and overgrowth are identical within analytical uncertainties, -76 and -73, respectively. This indicates the young overgrowth consists entirely of recycled Archean crust with no detectable involvement of mantle derived Hf. The low ?Hf values imply little material exchange between Archean crust and SRP melts (typical ?Hf between -10 and +10). The ages (~20 Ma) and the lack of a mantle component of the zircon overgrowths seem to preclude that young zircon growth was produced during SRP magmatism. However, the recent transfer of heat into the Archean basement may provide important clues concerning the processes operative in the lithosphere prior to and perhaps during SRP magmatism.

Dufrane, S. A.; Vervoort, J. D.; Leeman, W. P.; Wolf, D. E.

2007-12-01

166

Response of Ponderosa Pine to Variable Scale Climate Influences, Salmon River Canyon, Idaho  

NASA Astrophysics Data System (ADS)

Growth of trees in sparse stands on low-productivity sites is often strongly controlled by climate variation. We examined tree rings in cores collected from 73 ponderosa pine trees (Pinus ponderosa) at a dry upland site near the confluence of French Creek and the main fork of the Salmon River. Cores were mounted, processed, and visually and statistically cross-dated following standard dendrochronological methods. Ultimately, 41 tree-ring measurement series with a continuous time span of 278 years were used to create ring-width indices of tree growth for the site. These indices were tested against annual and monthly climatic variables. Simultaneous dating of fires scars from trees and snags at the site enabled reconstruction of a 160-year fire history. There were strong (p<0.01) positive correlations between ring width indices and annual Palmer Drought Severity Index (PDSI) and precipitation, indicating trees grew best in wet years. Strongest correlations with monthly climate variables were for prior-year fall and winter temperature and precipitation, as well as November to April snow water equivalent (SWE). The seasonal variable found most strongly correlated with tree growth was September-January total precipitation, most of which falls as snow at this site, which explained 34 percent of the total variance in annual ring widths. The strong relationship with monthly SWE is corollary to the relationship observed in the fall-winter precipitation, but high correlation with SWE in April and May underscores the positive influence of late season snowpack on current year summer growth. The occurrence of fires was greater during years with low precipitation and high PDSI, but growth responses to climate variables were not affected by fires. Although no significant correlation existed between tree growth and Pacific Decadal Oscillation Index, teleconnections with oceanic climatic influences were present in a positive relationship with the Atlantic Multidecadal Oscillation Index. The AMO was also correlated to fire recurrence at the site; all fires occurred during the AMO negative (cool) phase. The warm phase of the AMO was also correlated warmer winter temperatures that could lead to greater winter precipitation. Variance in tree ring growth indices was lower during the 20th century than in earlier years, suggesting greater amplitude in the AMO before about 1850.

Wilkins, D. E.; Kaplan, S. W.; Keim, R.; Grissino-Mayer, H.

2005-12-01

167

Earthquake catalog for the eastern Snake River Plain region, Idaho (43. 0°-44. 5°N, 111. 5°-114. 0°W), October 1972June 1982  

Microsoft Academic Search

The Idaho National Engineering Laboratory (INEL) has deployed a network of short-period high-gain vertical seismographs since December 1971 to monitor earthquake activity on and about the eastern Snake River Plain (ESRP), Idaho. This report summarizes the earthquakes located within a designated Special Study Area (43.0° - 44.5°N, 111.5° - 114.0°W) from October 1972 to June 1982. Seventy-eight events were located

J. J. King; T. E. Doyle

1982-01-01

168

Movement of bull trout in the upper Jarbidge River watershed, Idaho and Nevada, 2008-09--A supplement to Open-File Report 2010-1033  

USGS Publications Warehouse

We monitored bull trout (Salvelinus confluentus) in 2008 and 2009 as a continuation of our work in 2006 and 2007, which involved the tagging of 1,536 bull trout with passive integrated transponder (PIT) tags in the East Fork Jarbidge River and West Fork Jarbidge River and their tributaries in northeastern Nevada and southern Idaho. We installed PIT tag interrogation systems (PTISs) at established locations soon after ice-out, and maintained the PTISs in order to collect information on bull trout movements through December of each year. We observed a marked increase of movement in 2008 and 2009. Bull trout tagged in the uppermost portions of the East Fork Jarbidge River at altitudes greater than 2,100 meters moved to the confluence of the East Fork Jarbidge River and West Fork Jarbidge River in summer and autumn. Ten bull trout tagged upstream of the confluence of Pine Creek and the West Fork Jarbidge River moved downstream and then upstream in the East Fork Jarbidge River, and then past the PTIS at Murphy Hot Springs (river kilometer [rkm] 4.1). Two of these fish ascended Dave Creek, a tributary of the East Fork Jarbidge River, past the PTIS at rkm 0.4. One bull trout that was tagged at rkm 11 in Dave Creek on June 28, 2007 moved downstream to the confluence of the East Fork Jarbidge River and West Fork Jarbidge River (rkm 0) on July 28, 2007, and it was then detected in the West Fork Jarbidge River moving past our PTIS at rkm 15 on May 4, 2008. Combined, the extent and types of bull trout movements observed indicated that the primarily age-1 and age-2 bull trout that we tagged in 2006 and 2007 showed increased movement with age and evidence of a substantial amount of fluvial life history. The movements suggest strong connectivity between spawning areas and downstream mainstem areas, as well as between the East Fork Jarbidge River and West Fork Jarbidge River.

Munz, Carrie S.; Allen, M. Brady; Connolly, Patrick J.

2011-01-01

169

Depth and temporal variations in water quality of the Snake River Plain aquifer in well USGS-59 near the Idaho Chemical Processing Plant at the Idaho National Engineering and Environmental Laboratory  

SciTech Connect

In-situ measurements of the specific conductance and temperature of ground water in the Snake River Plain aquifer were collected in observation well USGS-59 near the Idaho Chemical Processing Plant at the Idaho National Engineering and Environmental Laboratory. These parameters were monitored at various depths in the aquifer from October 1994 to August 1995. The specific conductance of ground water in well USGS-59, as measured in the borehole, ranged from about 450 to 900 {micro}S/cm at standard temperature (25 C). The pumping cycle of the production wells at the Idaho Chemical Processing Plant causes changes in borehole circulation patterns, and as a result the specific conductance of ground water at some depths in the well varies by up to 50% over a period of about 14 hours. However, these variations were not observed at all depths, or during each pumping cycle. The temperature of ground water in the well was typically between 12.8 and 13.8 C. The results of this study indicate that temporal variations in specific conductance of the ground water at this location are caused by an external stress on the aquifer--pumping of a production well approximately 4,000 feet away. These variations are believed to result from vertical stratification of water quality in the aquifer and a subsequent change in intrawell flow related to pumping. When sampling techniques that do not induce a stress on the aquifer (i.e., thief sampling) are used, knowledge of external stresses on the system at the time of sampling may aid in the interpretation of geochemical data.

Frederick, D.B. [Idaho INEL Oversight Program, Boise, ID (United States); Johnson, G.S. [Univ. of Idaho, Moscow, ID (United States). Dept. of Geology and Geological Engineering

1997-03-01

170

Plume-Lithosphere Interaction beneath the Snake River Plain, Idaho: Constraints from Pb, Sr, Nd, and Hf Isotopes  

NASA Astrophysics Data System (ADS)

The Yellowstone-Snake River Plain (YSRP) volcanic province links 17 million years of volcanic activity that extends from the Owyhee Plateau in western Idaho/eastern Oregon to its current terminus underlying the Yellowstone Plateau. This investigation presents new Strontium, Neodymium, Lead, and Hafnium isotopic compositions of 25 basalts that represent four distinct areas of the YSRP (i.e., eastern province, central province, western province, Owyhee Plateau), which transect the ancient cratonic boundary of North America. The purpose of this study is to test and refine models for plume-lithosphere interaction and determines the mantle origin for YSRP basalts. New results shows: (1) low-K tholeiites from the eastern, central, and western SRP have ?Nd (-2 to -5.5), 87Sr/86Sr (0.7060-0.7071) and similar Pb-isotopes [206Pb/204Pb (17.8-18.6), 207Pb/204Pb (15.5-15.66), 208Pb/204Pb (38.4-39.1)]; (2) central SRP tholeiites are enriched in 208Pb/204Pb (~38.5-38.9), relative to eastern SRP basalts and define a 208Pb/204Pb trend, intermediate between the eastern SRP and Craters of the Moon lavas; (3) western SRP high-K basalts are depleted in ?Nd (> -1) and 87Sr/86Sr (0.7050-0.7057), relative to low-K tholeiites, and plot closer to "bulk silicate earth," but are enriched in 206Pb/204Pb (18.66-18.71), and have 207Pb/204Pb (15.62-15.65) and 208Pb/204Pb (39.1-39.2) isotope ratios similar to high-K basalts of Smith Prairie (Boise River Group 2); (4) Silver City basalt (>16.6 Ma) overlaps in Pb-isotope space with Imnaha basalt compositions (Columbia River Basalt Group); (5) new 177Hf/176Hf isotopic data lie above and parallel to the Mantle array in Nd and Hf isotope space and define a linear trend between Leucite Hills lavas and OIB basalts (i.e., Steens and Hawaii); (6) these basalts follow a systematic geographic pattern: eastern and central plain low-K tholeiites have low ?Nd (-3 to -5) and intermediate 206Pb/204Pb (~17.7-18.5), while western plain low-K tholeiites are enriched, i.e., ?Nd (-2 to -4) and 206Pb/204Pb (~18.2-18.6). The geochemical and geospatial observations can be modeled as a mixture between an OIB-like plume source that mixes with subduction-rejuvenated subcontinental lithosphere that varies in age and Sr and Pb isotopic composition from west to east beneath the SRP. The SCLM in the east is indicative of the ancient Wyoming Craton underlying the Yellowstone Plateau (i.e., 87Sr/86Sr (>0.706) and 206Pb/204Pb <18). The SCLM in the west has less radiogenic 87Sr/86Sr (<0.706) and more radiogenic Pb-isotopes (206Pb/204Pb >19), typical of the Mesozoic-Paleozoic margin of the North American craton. The model shows that eastern, central, and western plain low-K tholeiites can be modeled with ~ 97-98% plume component, as opposed to western SRP high-K lavas, which requires ? 99% plume component, while the Silver City basalt has essentially the isotopic composition of the plume component. Yellowstone Plateau basalts have the lowest plume component (< 90%). Additionally, the architecture beneath the SRP allows plume material to flow westward and potentially decompress, thus accounting for high-K volcanism millions of years after the North American continent overrode the plume.

Jean, M. M.; Hanan, B. B.; Shervais, J. W.

2011-12-01

171

Metal Transport, Heavy Metal Speciation and Microbial Fixation Through Fluvial Subenvironments, Lower Coeur D'Alene River Valley, Idaho  

NASA Astrophysics Data System (ADS)

The lower Coeur d'Alene River Valley of northern Idaho is the site of extensive lead and zinc contamination resulting from both direct riverine tailings disposal and flood remobilization of contaminated sediments derived from the Coeur d'Alene mining district upstream. Variations in the hydrologic regime, redox conditions, porosity/permeability, organic content and microbial activity results in complicated metal transport pathways. Documentation of these pathways is a prerequisite to effective remediation, and requires accurate analysis of lateral and vertical variations. An analytical approach combining sequential extraction, electron microscopy, and microanalysis provides a comprehensive assessment of particulate speciation in this complex hydrologic system. Rigorously controlled sample preparation and a new sequential extraction protocol provide unprecedented insight into the role of metal sequestration in fluvial subenvironments. Four subenvironments were investigated: bedload, overbank (levee), marsh, and lacustrine. Periodic floods remobilize primary ore minerals and secondary minerals from upstream tailings (primarily oxyhydroxides, sulfides and carbonates). The bedload in the lower valley is a reducing environment and acts as a sink for detrital carbonates and sulfides moving downstream. In addition, authigenic/biogenic Fe, Pb and Zn sulfides and phosphates are common in bedload sediments near the sediment/water interface. Flood redistribution of oxide, sulfide and carbonate phases results in periodic contaminant recharge generating a complex system of metal dissolution, mobilization, migration and precipitation. In levee environments, authigenic sulfides from flood scouring are quickly oxidized resulting in development of oxide coated grain surfaces. Stability of detrital minerals on the levee is variable depending on sediment permeability, grain size and mineralogy resulting in a complex stratigraphy of oxide zones mottled with zones dominated by detrital and authigenic carbonate and sulfide phases. Marshes subjected to periodic subaerial exposure/flooding are even more complex and dominated by authigenic and biogenic mineralization. Lacustrine environments are dominated by nanocrystalline inorganic and biogenic sulfide minerals in the upper third of the contaminated sediment column with increasing amounts of silt sized detrital sulfides (especially sphalerite) closer to the premining surface. In pH-neutral subenvironments within the wetlands and lateral lakes of the lower Coeur d'Alene River Valley, microbial fixation plays a critical role in sequestering metals. Complex metal oxyhydroxide phases provided via flood recharge to river edge, marsh and lacustrine environments rapidly dissolve upon encountering anoxic conditions. Microbial activity is extremely effective in removing heavy metals from the water column, producing a nanocrystalline biofilm substrate characterized by ZnS (sphalerite) and non-stoichiometric PbS, FeS, and mixed metal sulfides. These solid phases are inherently unstable, and the sequestered metals become readily available through changes in redox or pH conditions, particularly dam-controlled annual fluctuations in base level, or during removal by bottom-feeding aquatic water fowl. The recognition of the inherent complexity and instability of microbially produced sulfidic material in a pH-neutral environment has important implications for remediation efforts utilizing wetland filtration methods.

Hooper, R. L.; Mahoney, J. B.

2001-12-01

172

Further Analysis of 22 Prehistoric Sites within the Teton Replacement Farmland, Snake River Plain, Jefferson County, Idaho.  

National Technical Information Service (NTIS)

Intensive surface collection and mapping were conducted on 22 previously recorded prehistoric sites in the proposed Teton Replacement Farmland in Jefferson County, Idaho. The work was conducted for Water and Power Resources Service so they may fulfill the...

W. M. McCallum

1981-01-01

173

Geology of the Arco-Big Southern Butte area, eastern Snake River Plain, and volcanic hazards to the radioactive waste management complex, and other waste storage and reactor facilities at the Idaho National Engineering Laboratory, Idaho  

USGS Publications Warehouse

The Arco-Big Southern Butte area of the eastern Snake River Plain, Idaho, includes a volcanic rift zone and more than 70 Holocene and late Quaternary basalt volcanoes. The Arco volcanic rift zone extends southeast for 50 km from Arco to about 10 km southeast of Big Southern Butte. The rift zone is the locus of extensional faults, graben, fissure basaltic volcanic vents, several rhyolite domes at Big Southern Butte, and a ferrolatite volcano at Cedar Butte. Limited radiometric age data and geological field criteria suggest that all volcanism in the area is younger than 700,000 years; at least 67 separate basaltic eruptions are estimated to have occurred within the last 200,000 years. The average volcanic recurrence interval for the Arco-Big Southern Butte area is approximately one eruption per 3,000 years. Radioactive waste storage and reactor facilities at the Idaho National Engineering Laboratory may be subject to potential volcanic hazards. The geologic history and inferred past volcanic events in the Arco-Big Southern Butte area provide a basis for assessing the volcanic hazard. It is recommended that a radiometric age-dating study be performed on rocks in cored drill holes to provide a more precise estimate of the eruption recurrence interval for the region surrounding and including the Radioactive Waste Management Complex. It is also recommended that several geophysical monitoring systems (dry tilt and seismic) be installed to provide adequate warning of future volcanic eruptions.

Kuntz, Mel A.; Kork, John O.

1978-01-01

174

Joint Fire Modeling Project for Clark County, Idaho Bureau of Land Management, Upper Snake River District GIS And Idaho State University GIS Training and Research Center  

Microsoft Academic Search

Wildland\\/Urban Interface (WUI) fires and Communities at Risk (CAR) projects are high priorities to federal land management agencies. It is important that the federal government help educate homeowners, firefighters, local officials and land managers regarding the value and risk of wildland fire. The Bureau of Land Management's (BLM) Upper Snake River District (USRD) Geographic Information Systems (GIS) team and the

Chad Gentry; Dan Narsavage

175

Analysis of steady-state flow and advective transport in the eastern Snake River Plain aquifer system, Idaho  

USGS Publications Warehouse

Quantitative estimates of ground-water flow directions and traveltimes for advective flow were developed for the regional aquifer system of the eastern Snake River Plain, Idaho. The work included: (1) descriptions of compartments in the aquifer that function as intermediate and regional flow systems, (2) descriptions of pathlines for flow originating at or near the water table, and (3) quantitative estimates of traveltimes for advective transport originating at or near the water table. A particle-tracking postprocessing program was used to compute pathlines on the basis of output from an existing three-dimensional steady-state flow model. The flow model uses 1980 conditions to approximate average annual conditions for 1950-80. The advective transport model required additional information about the nature of flow across model boundaries, aquifer thickness, and porosity. Porosity of two types of basalt strata has been reported for more than 1,500 individual cores from test holes, wells, and outcrops near the south side of the Idaho National Engineering Laboratory. The central 80 percent of samples had porosities of 0.08 to 0.25, the central 50 percent of samples, O. 11 to 0.21. Calibration of the model involved choosing a value for porosity that yielded the best solution. Two radiologic contaminants, iodine-129 and tritium, both introduced to the flow system about 40 years ago, are relatively conservative tracers. Iodine- 129 was considered to be more useful because of a lower analytical detection limit, longer half-life, and longer flow path. The calibration value for porosity was 0.21. Most flow in the aquifer is contained within a regional-scale compartment and follows paths that discharge to the Snake River downstream from Milner Dam. Two intermediate-scale compartments exist along the southeast side of the aquifer and near Mud Lake.One intermediate-scale compartment along the southeast side of the aquifer discharges to the Snake River near American Fails Reservoir and covers an area of nearly 1,000 square miles. This compartment, which receives recharge from an area of intensive surface-water irrigation, is apparently fairly stable. The other intermediate-scale compartment near Mud Lake covers an area of 300 square miles. The stability and size of this compartment are uncertain, but are assumed to be in a state of change. Traveltimes for advective flow from the water table to discharge points in the regional compartment ranged from 12 to 350 years for 80 percent of the particles; in the intermediate-scale flow compartment near American Falls Reservoir, from 7 to 60 years for 80 percent of the particles; and in the intermediate-scale compartment near Mud Lake, from 25 to 100 years for 80 percent of the particles. Traveltimes are sensitive to porosity and assumptions regarding the importance of the strength of internal sinks, which represent ground-water pumpage. A decrease in porosity results in shorter traveltimes but not a uniform decrease in traveltime, because the porosity and thickness is different in each model layer. Most flow was horizontal and occurred in the top 500 feet of the aquifer. An important limitation of the model is the assumption of steady-state flow. The most recent trend in the flow system has been a decrease in recharge since 1987 because of an extended drought and changes in land use. A decrease in flow through the system will result in longer traveltimes than those predicted for a greater flow. Because the interpretation of the model was limited to flow on a larger scale, and did not consider individual wells or well fields, the interpretations were not seriously limited by the discretization of well discharge. The interpretations made from this model also were limited by the discretization of the major discharge areas. Near discharge areas, pathlines might not be representative at the resolution of the grid. Most improvement in the estimates of ground-waterflow directions and travelt

Ackerman, D. J.

1995-01-01

176

High-precision provenance determination using detrital-zircon ages and petrography of Quaternary sands on the eastern Snake River Plain, Idaho  

SciTech Connect

The Big Lost trough is an upper Pliocene to Holocene sedimentary basin containing volcanic sills in the northeastern Snake River Plain, Idaho. The basin receives sediment primarily from Basin and Range fluvial systems of the Big Lost River, Little Lost River, and Birch Creek. The Big Lost trough contains a >200-m-thick succession of lacustrine, fluvial, eolian, and playa sediments, recording high-frequency Quaternary climatic fluctuations interbedded with basalt flows. Alternating deposition of clay-rich lacustrine sediments and sandy fluvial and eolian sediments in the central part of the basin was in response to the interaction of fluvial and eolian systems with Pleistocene Lake Terreton. The source areas for modern sands from the fluvial systems can be differentiated by using both petrography and U/Pb age spectra from detrital-zircon populations. Provenance data from subsurface sands indicate that the Big Lost trough was supplied with sand largely deposited by the Big Lost River, with local redeposition by eolian processes, similar to the modern depositional system. Provenance and stratigraphic data suggest that during Pleistocene wet climate cycles, the center of the basin was dominated by lacustrine sedimentation; during dry climate cycles, the base level dropped, the Big Lost River prograded across the basin, and the eolian system became active. At least seven climate oscillations are recorded in strata deposited between {approximately}140 and {approximately}1250 ka.

Geslin, J.K.; Link, P.K. [Idaho State Univ., Pocatello, ID (United States). Dept. of Geology; Fanning, C.M. [Australian National Univ., Canberra (Australia). Research School of Earth Sciences

1999-04-01

177

Predicted climate change effects on streambed scour and risks to Chinook salmon survival in the Middle Fork Salmon River, Idaho  

NASA Astrophysics Data System (ADS)

In response to recent climate warming trends in the Pacific Northwest, the frequency and magnitude of winter floods is expected to increase in some areas where rain-on-snow events occur. Eggs of fall spawning salmonids are incubating in the streambed at this time of year and may be at risk if streambed scour exceeds typical egg burial depths. We investigated how projected trends in streamflow associated with climate change may alter the probability of streambed scour below documented egg burial depths (15-50 cm) for Chinook salmon (Oncorhynchus tshawytscha) in the Middle Fork Salmon River (MFSR), central Idaho. Predictions are made for the magnitude and timing of current and future bankfull flows (approximated by the 2-year flood, Q2) at the basin scale by coupling digital elevation models with empirical predictions of grain size and bankfull shear stress, determined from field surveys of 120 channel reaches distributed throughout the basin. Historic and future values of Q2 were derived from the Variable Infiltration Capacity (VIC) hydrologic model at the scale of 1/16th degree cells. Future predictions of Q2 were derived from the VIC model using output from an ensemble of Global Climate Models under an A1B emissons scenario for the 2040s and 2080s. Predicted changes in both bankfull flow and the probability of scour to egg burial depths were examined at recent spawning sites (1995-2004 surveys) to assess ecological risk. We found that in the low gradient reaches (Slope <3%) where most spawning occurs, the probability of critical scour was consistently <0.1 under the historic scenario. Future scenarios indicated only a small increase in the length of streams subject to scour in the MFSR, and suggested that this high-elevation system could be largely resistant to climate-driven changes in flow, except under extreme warming scenarios. We are currently extending these analyses to lower elevation basins in rain-dominated and transitional (rain and snow) hydroclimates to assess relative scour sensitivities over a wider range of environmental conditions across the Pacific Northwest.

Goode, J.; Buffington, J. M.; Tonina, D.; Isaak, D.; Tetzlaff, D.; Soulsby, C.; Wenger, S.; Thurow, R.; Nagel, D.; Luce, C.

2011-12-01

178

Estimated 100-year peak flows and flow volumes in the Big Lost River and Birch Creek at the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

The purpose of this report is to provide estimates of the 100-year peak flows and flow volumes that could enter the INEL area from the Big Lost River and Brich Creek are needed as input data for models that will be used to delineate the extent of the 100-year flood plain at the INEL. The methods, procedures and assumptions used to estimate the 100-year peak flows and flow volumes are described in this report.

Kjelstrom, L.C.; Berenbrock, C.

1996-12-31

179

Time-dependent inversion of three-component GPS time series for steady and transient effects of the Yellowstone Hotspot on the Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

Crustal deformation in the Northern Basin and Range and Snake River Plain results from extension overprinted by volcanism associated with the Yellowstone Hotspot. The Snake River Plain is a seismically quiet, low-relief physiographic feature that extends from eastern Oregon through southern Idaho and into northwestern Wyoming. The Northern Basin and Range surrounds the Snake River Plain and is distinguished by its higher elevations, higher rates of seismicity, and active normal faulting. Horizontal GPS velocities indicate the strain rate in the Snake River Plain is an order of magnitude lower than in the Northern Basin and Range and that a zone of right-lateral shear extends along the northern Snake River Plain boundary to accommodate the different strain rates. The 2004-2009 inflation of the Yellowstone caldera and subsidence adjacent to northern caldera rim resulting from magma intrusion and withdrawal are transient effects embedded in GPS velocities and may impact interpretations of regional kinematics. We invert continuous GPS time series from Plate Boundary Observatory (PBO) along with survey-mode GPS site time series to estimate simultaneously the long-term steady motions and short-term transient magma intrusion in the Snake River Plain and Northern Basin and Range. We model the magma intrusion as Mogi sources beneath the Yellowstone caldera at shallow depths. The steady motions are described by crustal block rotations and strain rates that together predict spatially smooth variations in surface velocities. We estimate fault locking and block rotations that have been corrected for transient motions resulting from magma intrusion. From this we estimate that the magmatic deformation outside of the caldera at distances of 160-180 km, where we observe the largest differential strain rates, contributes less than about 0.3 mm/yr to the overall velocities and does not contribute to the difference in strain rates currently observed.

Payne, S. J.; McCaffrey, R.; King, R. W.

2009-12-01

180

A Journey of Surprises: Rivers Reveal Their Secrets to Idaho Students Researching Water Quality through Rigorous Scientific Inquiry.  

ERIC Educational Resources Information Center

Idaho secondary students learn the scientific method through outdoor environmental projects related to water quality monitoring. A program trains teachers to design project-based learning and provides extensive followup support. Five-day summer workshops immerse teachers in the types of projects they will orchestrate with their own students.…

Boss, Suzie

2002-01-01

181

Idaho Yesterdays  

NSDL National Science Digital Library

Idaho is a state of many different moods and climates, and since 1957 Idaho Yesterdays has documented the state's history and transformation through articles, book reviews, and commentary. In 2009, the journal switched to life as a digital peer-reviewed publication. Today, visitors can read the digital issues of the journal, and they will find a range of articles here. Visitors can find full-length articles like "Idaho and the Development of the JCPenney Chain" and "Virgin Forest to Modern Farm: Picturing Ecological Change in Northern Idaho's Cutover Land". Finally, visitors can also register on the site, read announcements, and learn about the Idaho State Historical Society.

182

Simulation of Streamflow Using a Multidimensional Flow Model for White Sturgeon Habitat, Kootenai River near Bonners Ferry, Idaho - Supplement to Scientific Investigations Report 2005-5230  

USGS Publications Warehouse

During 2005, the U.S. Geological Survey (USGS) developed, calibrated, and validated a multidimensional flow model for simulating streamflow in the white sturgeon spawning habitat of the Kootenai River in Idaho. The model was developed as a tool to aid understanding of the physical factors affecting quality and quantity of spawning and rearing habitat used by the endangered white sturgeon (Acipenser transmontanus) and for assessing the feasibility of various habitat-enhancement scenarios to re-establish recruitment of white sturgeon. At the request of the Kootenai Tribe of Idaho, the USGS extended the two-dimensional flow model developed in 2005 into a braided reach upstream of the current white sturgeon spawning reach. Many scientists consider the braided reach a suitable substrate with adequate streamflow velocities for re-establishing recruitment of white sturgeon. The 2005 model was extended upstream to help assess the feasibility of various strategies to encourage white sturgeon to spawn in the reach. At the request of the Idaho Department of Fish and Game, the USGS also extended the two-dimensional flow model several kilometers downstream of the white sturgeon spawning reach. This modified model can quantify the physical characteristics of a reach that white sturgeon pass through as they swim upstream from Kootenay Lake to the spawning reach. The USGS Multi-Dimensional Surface-Water Modeling System was used for the 2005 modeling effort and for this subsequent modeling effort. This report describes the model applications and limitations, presents the results of a few simple simulations, and demonstrates how the model can be used to link physical characteristics of streamflow to the location of white sturgeon spawning events during 1994-2001. Model simulations also were used to report on the length and percentage of longitudinal profiles that met the minimum criteria during May and June 2006 and 2007 as stipulated in the U.S. Fish and Wildlife Biological Opinion.

Barton, Gary J.; McDonald, Richard R.; Nelson, Jonathan M.

2009-01-01

183

Lead exposure in passerines inhabiting lead-contaminated floodplains in the Coeur d'Alene River Basin, Idaho, USA  

Microsoft Academic Search

Blood collected from song sparrows (Melospiza melodia) and American robins (Turdus migratorius) captured with mist nets in a lead-contaminated (assessment) area and nearby uncontaminated (reference) areas within the Coeur d'Alene Basin in northern Idaho was analyzed for [delta]-aminolevulinic acid dehydratase activity (ALAD) and hematocrit levels, and livers were analyzed for lead. Mean ALAD inhibition in the assessment area was 51%

Gregory D. Johnson; J. W. Kern; M. D. Strickland; L. L. McDonald; D. J. Audet; L. J. LeCaptain; D. J. Hoffman

1999-01-01

184

Stream-sediment geochemistry in mining-impacted streams : sediment mobilized by floods in the Coeur d'Alene-Spokane River system, Idaho and Washington  

USGS Publications Warehouse

Environmental problems associated with the dispersion of metal-enriched sediment into the Coeur d'Alene-Spokane River system downstream from the Coeur d'Alene Mining District in northern Idaho have been a cause of litigation since 1903, 18 years after the initiation of mining for lead, zinc, and silver. Although direct dumping of waste materials into the river by active mining operations stopped in 1968, metal-enriched sediment continues to be mobilized during times of high runoff and deposited on valley flood plains and in Coeur d'Alene Lake (Horowitz and others, 1993). To gauge the geographic and temporal variations in the metal contents of flood sediment and to provide constraints on the sources and processes responsible for those variations, we collected samples of suspended sediment and overbank deposits during and after four high-flow events in 1995, 1996, and 1997 in the Coeur d'Alene-Spokane River system with estimated recurrence intervals ranging from 2 to 100 years. Suspended sediment enriched in lead, zinc, silver, antimony, arsenic, cadmium, and copper was detected over a distance of more than 130 mi (the downstream extent of sampling) downstream of the mining district. Strong correlations of all these elements in suspended sediment with each other and with iron and manganese are apparent when samples are grouped by reach (tributaries to the South Fork of the Coeur d'Alene River, the South Fork of the Coeur d'Alene River, the main stem of the Coeur d'Alene River, and the Spokane River). Elemental correlations with iron and manganese, along with observations by scanning electron microscopy, indicate that most of the trace metals are associated with Fe and Mn oxyhydroxide compounds. Changes in elemental correlations by reach suggest that the sources of metal-enriched sediment change along the length of the drainage. Metal contents of suspended sediment generally increase through the mining district along the South Fork of the Coeur d'Alene River, decrease below the confluence of the North and South Forks, and then increase again downstream of the gradient flattening below Cataldo. Metal contents of suspended sediment in the Spokane River below Coeur d'Alene Lake were comparable to those of suspended sediment in the main stem of the Coeur d'Alene River above the lake during the 1997 spring runoff, but with somewhat higher Zn contents. Daily suspended-sediment loads were about 100 times larger in the 1996 flood (50-100-year recurrence interval) than in the smaller 1997 floods (2-5-year recurrence intervals). Significant differences in metal ratios and contents are also apparent between the two flood types. The predominant source of suspended sediment in the larger 1996 flood was previously deposited, metal-enriched flood-plain sediment, identified by its Zn/Pb ratio less than 1. Suspended sediment in the smaller 1997 floods had metal ratios distinct from those of the flood-plain deposits and was primarily derived from metal-enriched sediment stored within the stream channel, identified by a Zn/Pb ratio greater than 1. Sediment deposited during overbank flooding on the immediate streambank or natural levee of the river typically consists of sandy material with metal ratios and contents similar to those of the sandy streambed sediment in the adjacent river reach. Samples of overbank deposits in backlevee marshes collected after the 1996 flood have metal ratios similar to those of peak-flow suspended sediment in the same river reach, but generally lower metal contents.

Box, Stephen E.; Bookstrom, Arthur A.; Ikramuddin, Mohammed

2005-01-01

185

Geothermal investigations in Idaho. Part 12. Stable isotopic evaluation of thermal water occurrences in the Weiser and Little Salmon River drainage basins and adjacent areas, west-central Idaho with attendant gravity and magnetic data on the Weiser area  

SciTech Connect

Fifteen thermal springs, two thermal wells, and eight cold springs in the Weiser and Little Salmon river drainages were sampled for deuterium and oxygen-18 analysis during the fall of 1981. The straight-line fit of delta D and delta /sup 18/O versus latitude and longitude observed in the data is what would be expected if the recharge areas for the thermal and non-thermal waters were in close proximity to their respective discharge points. The discrete values of delta D and delta /sup 18/O for each thermal discharge suggest that none of the sampled thermal systems have common sources. The depleted deuterium and oxygen-18 contents of most thermal relative to non-thermal waters sampled suggests that the thermal waters might be Pleistocene age precipitation. The isotopic data suggest little or no evidence for mixing of thermal and non-thermal water for the sampled discharges. Thermal waters from Weiser, Crane Creek, Cove Creek, and White Licks hot springs show enrichment in oxygen-18 suggesting that these waters have been at elevated temperatures relative to other sampled thermal discharges in the area. Gravity and magnetic data gathered by the Idaho State University Geology Department in the Weiser Hot Springs area suggest that southeastward plunging synclinal-anticlinal couples, which underlie the hot springs, are cut south of the springs by a northeast trending boundary fault.

Mitchell, J.C.; Bideganeta, K.; Palmer, M.A.

1984-12-01

186

Organochlorine compounds and trace elements in fish tissue and bed sediments in the lower Snake River basin, Idaho and Oregon  

USGS Publications Warehouse

Fish-tissue and bed-sediment samples were collected to determine the occurrence and distribution of organochlorine compounds and trace elements in the lower Snake River Basin. Whole-body composite samples of suckers and carp from seven sites were analyzed for organochlorine compounds; liver samples were analyzed for trace elements. Fillets from selected sportfish were analyzed for organochlorine compounds and trace elements. Bed-sediment samples from three sites were analyzed for organochlorine compounds and trace elements. Twelve different organochlorine compounds were detected in 14 fish-tissue samples. All fish-tissue samples contained DDT or its metabolites. Concentrations of total DDT ranged from 11 micrograms per kilogram wet weight in fillets of yellow perch from C.J. Strike Reservoir to 3,633 micrograms per kilogram wet weight in a whole-body sample of carp from Brownlee Reservoir at Burnt River. Total DDT concentrations in whole-body samples of sucker and carp from the Snake River at C.J. Strike Reservoir, Snake River at Swan Falls, Snake River at Nyssa, and Brownlee Reservoir at Burnt River exceeded criteria established for the protection of fish-eating wildlife. Total PCB concentrations in a whole-body sample of carp from Brownlee Reservoir at Burnt River also exceeded fish-eating wildlife criteria. Concentrations of organochlorine compounds in whole-body samples, in general, were larger than concentrations in sportfish fillets. However, concentrations of dieldrin and total DDT in fillets of channel catfish from the Snake River at Nyssa and Brownlee Reservoir at Burnt River, and concentrations of total DDT in fillets of smallmouth bass and white crappie from Brownlee Reservoir at Burnt River exceeded a cancer risk screening value of 10-6 established by the U.S. Environmental Protection Agency. Concentrations of organochlorine compounds in bed sediment were smaller than concentrations in fish tissue. Concentrations of p,p'DDE, the only compound detected in all three bed-sediment samples, ranged from 1.1 micrograms per kilogram dry weight in C.J. Strike Reservoir to 11 micrograms per kilogram dry weight in Brownlee Reservoir at Burnt River. Data from this study, compared with data collected in the upper Snake River Basin from 1992 to 1994, indicates that, in general, organochlorine concentrations in fish tissue and bed sediment increased from the headwaters of the Snake River in Wyoming downstream to Brownlee Reservoir. The largest trace-element concentrations in fish tissue were in liver samples from carp from Brownlee Reservoir at Burnt River and suckers from the Boise River near Twin Springs. Concentrations of most trace elements were larger in livers than in the sport- fish fillets. However, mercury concentrations were generally larger in the sportfish fillets; they ranged from 0.08 microgram per gram wet weight in yellow perch from C.J. Strike Reservoir to 0.32 microgram per gram wet weight in channel catfish from Brownlee Reservoir at Burnt River. None of the trace-element concentrations in fillets exceeded median international standards or U.S. Food and Drug Administration action levels. Large trace-element concentrations in the upper Snake River Basin were reported in liver samples from suckers from headwater streams, probably a result of historical mining and weathering of metal-rich rocks. Concentrations of most trace elements in the bed-sediment samples were largest in Brownlee Reservoir at Mountain Man Lodge. Concentrations of arsenic, cadmium, chromium, copper, nickel, and zinc in bed sediment from the Mountain Man Lodge site exceeded either the threshold effect level or probable effect level established by the Canadian Government for the protection of benthic life. Arsenic, chromium, copper, and nickel concentrations in bed sediment from Brownlee Reservoir at Burnt River and chromium, copper, and nickel in bed sediment from C.J. Strike Reservoir also exceeded the threshold effect level.

Clark, Gregory M.; Maret, Terry R.

1998-01-01

187

Simulation of flow and sediment mobility using a multidimensional flow model for the White Sturgeon critical-habitat reach, Kootenai River near Bonners Ferry, Idaho  

USGS Publications Warehouse

In 1994, the Kootenai River white sturgeon (Acipenser transmontanus) was listed as an Endangered Species as a direct result of two related observations. First, biologists observed that the white sturgeon population in the Kootenai River was declining. Second, they observed a decline in recruitment of juvenile sturgeon beginning in the 1950s with an almost total absence of recruitment since 1974, following the closure of Libby Dam in 1972. This second observation was attributed to changes in spawning and (or) rearing habitat resulting from alterations in the physical habitat, including flow regime, sediment-transport regime, and bed morphology of the river. The Kootenai River White Sturgeon Recovery Team was established to find and implement ways to improve spawning and rearing habitat used by white sturgeon. They identified the need to develop and apply a multidimensional flow model to certain reaches of the river to quantify physical habitat in a spatially distributed manner. The U.S. Geological Survey has addressed these needs by developing, calibrating, and validating a multidimensional flow model used to simulate streamflow and sediment mobility in the white sturgeon critical-habitat reach of the Kootenai River. This report describes the model and limitations, presents the results of a few simple simulations, and demonstrates how the model can be used to link physical characteristics of streamflow to biological or other habitat data. This study was conducted in cooperation with the Kootenai Tribe of Idaho along a 23-kilometer reach of the Kootenai River, including the white sturgeon spawning reach near Bonners Ferry, Idaho that is about 108 to 131 kilometers below Libby Dam. U.S. Geological Survey's MultiDimensional Surface-Water Modeling System was used to construct a flow model for the critical-habitat reach of the Kootenai River white sturgeon, between river kilometers 228.4 and 245.9. Given streamflow, bed roughness, and downstream water-surface elevation, the model computes the velocity field, water-surface elevations, and boundary shear stress throughout the modeled reach. The 17.5 kilometer model reach was subdivided into two segments on the basis of predominant grain size: a straight reach with a sand, gravel, and cobble substrate located between the upstream model boundary at river kilometer 245.9 and the upstream end of Ambush Rock at river kilometer 244.6, and a meandering reach with a predominately sand substrate located between upstream end of Ambush Rock and the downstream model boundary at river kilometer 228.4. Model cell size in the x and y (horizontal) dimensions is 5 meters by 5 meters along the computational grid centerline with 15 nodes in the z (vertical) dimension. The model was calibrated to historical streamflows evenly distributed between 141.6 and 2,548.9 cubic meters per second. The model was validated by comparing simulated velocities with velocities measured at 15 cross sections during steady streamflow. These 15 cross sections were each measured multiple (7-13) times to obtain velocities suitable for comparison to the model results. Comparison of modeled and measured velocities suggests that the model does a good job of reproducing flow patterns in the river, although some discrepancies were noted. The model was used to simulate water-surface elevation, depth, velocity, bed shear stress, and sediment mobility for Kootenai River streamflows of 170, 566, 1,130, 1,700, and 2,270 cubic meters per second (6,000, 20,000, 40,000, 60,000, and 80,000 cubic feet per second). The three lowest streamflow simulations represent a range of typical river conditions before and since the construction of Libby Dam, and the highest streamflow simulation (2,270 cubic meters per second) is approximately equal to the annual median peak streamflow prior to emplacement of Libby Dam in 1972. Streamflow greater than 566 cubic meters per second were incrementally increased by 570 cubic meters per second. For each

Barton, Gary J.; McDonald, Richard R.; Nelson, Jonathan M.; Dinehart, Randal L.

2005-01-01

188

Effects of the Cabinet Gorge Kokanee Hatchery on Wintering Bald Eagles in the Lower Clark Fork River and Lake Pend, Oreille, Idaho: 1986 Final Report.  

SciTech Connect

The abundance and distribution of bald eagles (Haliaeetus leucocephalus) on the lower Clark Fork River, Lake Pend Oreille, and the upper Pend Oreille River, Idaho, were documented during the winters of 1985--86 and 1986--87. Peak counts of bald eagles in weekly aerial censuses were higher in 1985--86 (274) and 1986--87 (429) than previously recorded in mid-winter surveys. Differences in eagle distribution within and between years were apparently responses to changes in prey availability. Eight bald eagles were captured and equipped with radio transmitters in the winter and spring of 1986. Residencies within the study area averaged 13.9 days in 1985--86 and 58.3 days for the four eagles that returned in 1986-87. The eagles exhibited considerable daily movement throughout the study area. After departing the area, one eagle was later sighted approximately 1185 km to the southwest in northern California. Eagle behavioral activity was recorded at time budget sessions at areas of heavy use. Perching in live trees was the most common behavior observed. 34 refs., 39 figs., 17 tabs.

Crenshaw, John G.

1987-12-01

189

In Situ Production of Chlorine-36 in the Eastern Snake River Plain Aquifer, Idaho: Implications for Describing Ground-Water Contamination Near a Nuclear Facility  

SciTech Connect

The purpose of this report is to describe the calculated contribution to ground water of natural, in situ produced 36Cl in the eastern Snake River Plain aquifer and to compare these concentrations in ground water with measured concentrations near a nuclear facility in southeastern Idaho. The scope focused on isotopic and chemical analyses and associated 36Cl in situ production calculations on 25 whole-rock samples from 6 major water-bearing rock types present in the eastern Snake River Plain. The rock types investigated were basalt, rhyolite, limestone, dolomite, shale, and quartzite. Determining the contribution of in situ production to 36Cl inventories in ground water facilitated the identification of the source for this radionuclide in environmental samples. On the basis of calculations reported here, in situ production of 36Cl was determined to be insignificant compared to concentrations measured in ground water near buried and injected nuclear waste at the INEEL. Maximum estimated 36Cl concentrations in ground water from in situ production are on the same order of magnitude as natural concentrations in meteoric water.

L. D. Cecil; L. L. Knobel; J. R. Green (USGS); S. K. Frape (University of Waterloo)

2000-06-01

190

Development of a regional groundwater flow model for the area of the Idaho National Engineering Laboratory, Eastern Snake River Plain Aquifer  

SciTech Connect

This report documents a study conducted to develop a regional groundwater flow model for the Eastern Snake River Plain Aquifer in the area of the Idaho National Engineering Laboratory. The model was developed to support Waste Area Group 10, Operable Unit 10-04 groundwater flow and transport studies. The products of this study are this report and a set of computational tools designed to numerically model the regional groundwater flow in the Eastern Snake River Plain aquifer. The objective of developing the current model was to create a tool for defining the regional groundwater flow at the INEL. The model was developed to (a) support future transport modeling for WAG 10-04 by providing the regional groundwater flow information needed for the WAG 10-04 risk assessment, (b) define the regional groundwater flow setting for modeling groundwater contaminant transport at the scale of the individual WAGs, (c) provide a tool for improving the understanding of the groundwater flow system below the INEL, and (d) consolidate the existing regional groundwater modeling information into one usable model. The current model is appropriate for defining the regional flow setting for flow submodels as well as hypothesis testing to better understand the regional groundwater flow in the area of the INEL. The scale of the submodels must be chosen based on accuracy required for the study.

McCarthy, J.M.; Arnett, R.C.; Neupauer, R.M. [and others

1995-03-01

191

Structural analysis of compressional and extensional deformation within the Wood River and Milligen Formations, south-central, Idaho  

SciTech Connect

The Pennsylvanian to Permian Wood River Formation consists of calcareous and siliciclastic rocks that were deposited unconformably on argillaceous rocks of the Devonian Milligen Formation. The original depositional contact between the two formations is preserved locally; however, the contact was also mapped as a thrust, a normal fault, a reactivated thrust with a normal sense of movement, and as a sheared unconformity with an indeterminate sense of movement. Early reverse movement with northeast tectonic transport along the Milligen-Wood River contact is documented by mesoscopic and microscopic field evidence, including Riedel shears, drag folds, angular relations of cleavage in the fault plane, and oriented thin sections. Faults that separate middle Wood River in the upper plate from upper Wood River in the lower plate are also associated with this early phase of thrusting. Tertiary extensional deformation resulted in high-angle and low-angle normal faulting with some reactivation of Mesozoic thrusts. High-angle fault have normal, dip-slip or normal, obliquie-slip movements. Low-angle normal faults with north-west to southwest tectonic transport cut the Milligen and Wood River Formations, as well as units within the Tertiary Challis Volcanics. The movement sense on the normal faults in documented by drag folds, the angular relation of extension joints relative to the fault plane, shear steps, and oriented thin sections. Faults that separate younger sequences of the Wood River in the upper plate from older sequences in the lower plate are also associated with this phase of normal faulting.

Ratchford, M.E.; Reid, R.R. (Univ. of Idaho, Moscow, ID (United States). Dept. of Geology and Geological Engineering)

1993-04-01

192

Depth of emplacement of the Payette River tonalite and tectonic implications for the arc-continent boundary in west-central Idaho  

SciTech Connect

A major lithospheric boundary known as the Salmon River Suture Zone (SRSZ), trends north-south through west-central Idaho, juxtaposing Paleozoic and Proterozoic cratonally-derived sedimentary material to the east against phanerozoic arc-derived material to the west. This boundary zone is the subject of complex and disputed tectonic history. A field, petrographic and geothermobarometric study of a cratonally-derived metasedimentary unit of migmatized pods within the Payette River tonalite (PRT) sheds light on the compressional history and P-T conditions to the east of the SRSZ relative to the time of PRT emplacement as 90[+-]5Ma (Manduca, 1988). The migmitized material is composed of pelitic and calc-silicate metamorphosed sediments of upper amphibolite grade, and quartzite. The migmatites within the PRT show structural evidence of east-west compression both during and after emplacement of the tonalite. Pressure and temperature conditions preserved by the pelitic migmatites at the time of PRT emplacement are at least 5.8 kbar and 700 C, according to GASP barometry and garnet-biotite thermometry coupled with petrographic information. The work of Selverstone et al. (1991) on the Pollack Mountain and Rapid River plates to the west of the suture zone indicates that these units were at pressures less than 4 kbar at 90 Ma. Pressures of >5.8 kbar at 90 Ma determined from rocks east of the suture indicates that the east side of the SRSZ moved upward relative to the west side after 90 Ma. Rocks on both sides of the suture are believed to have reached near-surface conditions by 65 Ma.

Weston, P.; Manduca, C.A. (Carleton College, Northfield, MN (United States)); Selverstone, J. (Univ. of Colorado, Boulder, CO (United States). Dept. of Geological Sciences)

1993-04-01

193

Geochronology, paleomagnetism and petrology of the Upper Cenozoic Bruneau Formation in the Western Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

The combined application of potassium-argon and paleomagnetic techniques revealed an understanding of the sequence of geologic events during the last 2.2 m.y. in the western part of the Snake River Plain. Two factors introduce large errors in the whole-rock K-Ar dating of fine-grained, glass-rich, geologically young Snake River basalts: a low potassium content which is not uniformly distributed; and the presence of large amounts of extraneous, occluded and atmospheric argon. Therefore, paleomagnetism has been applied as a supporting technique. Basalts of the Bruneau Formation display field, petrographic, and petrologic characteristics similar to other Snake River basalts. Olivine has undergone no reaction with the residual liquid, and the sole pyroxene is a Ca-rich augite. They contain both olivine and hypersthene in the norm and display characteristics transitional between tholeiitic and alkali basalts. Accordingly they have been classified as hypersthene-normative alkalic basalts.

Amini, M. H.

194

Liver lead burden in hunter-killed ducks from the Coeur d'Alene River Valley of northern Idaho  

SciTech Connect

Liver lead burden was evaluated in ducks from an area in northern Idaho contaminated with mining waste and lead shot. Hunter-killed ducks with lead shot in their gizzard had a mean liver lead concentration of 15.18 {plus minus} 2.51 micrograms/g wet-weight (N = 23) and ducks without lead shot had a mean liver lead concentration of 4.21 {plus minus} 0.47 micrograms/g wet-weight (N = 85). The most hazardous source of lead for waterfowl in this area has been thought to be mining waste-contaminated soils and sediments. Three sediment samples had a mean concentration of 4,520 micrograms lead/g wet-weight.

Casteel, S.W.; Nigh, J.; Neufeld, J.; Thomas, B.R. (Department of Veterinary Science, University of Idaho, Moscow (USSR))

1991-06-01

195

Impacts of Fire and Mass Wasting on Channel Morphology and Stream Temperature in Mountain Rivers of Central Idaho  

NASA Astrophysics Data System (ADS)

Debris flows and hyperconcentrated flows immediately impact streams by changing channel morphology, grain size, sediment storage and transport, amount of incision, riparian vegetation, large woody debris dynamics, and extirpating fish, amphibian, and insect populations. In central Idaho, these disturbances are commonly triggered by intense thunderstorms or rain-on-snow events, and are exacerbated by wildfires which alter basin hydrology and sediment supply by removing vegetation and creating hydrophobic soils. While the immediate effect of these flows is dramatic, the time to recovery of the physical habitat is poorly understood and the long-term significance of these disturbances to aquatic organisms is unknown. Stream temperature is a key variable of stream ecosystems and has been shown to control the distribution of salmonids in our study area of the Idaho Batholith. Previous research in 10 recently disturbed streams shows a systematic increase in stream temperature across three stream types representing progressively greater disturbance: undisturbed; burned; and those impacted by both fire and mass-wasting events. Here, we test the hypothesis that the observed pattern of warming is due to increased solar radiation loading caused by wider, shallower streams and the removal of vegetative shade by fires and mass-wasting events. We examine channel conditions across several treatment classes (undisturbed, post-fire debris flow, debris flow without fire) and time since disturbance (1964 to present). In 32 streams, 200-600 meter reaches were surveyed and upstream and downstream temperatures were monitored throughout the summer, the solar load was estimated as a function of shading (measured with hemispherical photo analysis), stream width and depth, and average velocity estimated with salt tracers. Preliminary results indicate that while recent disturbances (1995-2003) significantly increase the solar load and stream temperatures, older disturbances (1964) are similar to undisturbed streams.

Welcker, C. W.; Buffington, J. M.; Rieman, B. E.; Luce, C. H.; McKean, J.

2004-12-01

196

Field evaluation of lead effects on Canada geese and mallards in the Coeur d'Alene River Basin, Idaho  

USGS Publications Warehouse

Hatch year (HY) mallards (Anas platyrhynchos) in the Coeur d'Alene (CDA) River Basin had higher concentrations of lead in their blood than HY Western Canada geese (Branta canadensis moffitti) (geometric means 0.98 versus 0.28 I?g/g, wet weight). The pattern for adults of both species was similar, although geometric means (1.77 versus 0.41 I?g/g) were higher than in HY birds. HY mallards captured in the CDA River Basin in 1987 contained significantly lower lead concentrations in their blood than in 1994a??95 (0.36 versus 0.98 I?g/g); however, some very young mallards were sampled in 1987, and concentrations in adults were not significantly different in 1987, 1994, or 1995 (1.52, 2.07, 1.55 I?g/g, respectively). Both species in the CDA River Basin in 1994a??95 showed significantly reduced red blood cell delta-aminolevulinic acid dehydratase (ALAD) activity compared to the reference areas: Canada geese (HY a??65.4 to a??86.0%, adults a??82.3%), and mallards (HY a??90.7 to a??95.5%, adults a??94.1%). Canada goose goslings were divided into size classes, and the two smaller classes from the CDA River Basin had significantly elevated free erythrocyte protoporphyrin (protoporphyrin) levels compared to the reference area (15.2?? and 6.9??). HY and adult mallards both had significantly elevated protoporphyrin (5.9?? and 7.5??). Recognizing that interspecific differences exist in response and sensitivity to lead, it appears (at least for hemoglobin and hematocrit) that Canada geese were more sensitive to lead than mallards, i.e., adverse hematologic effects occur at lower blood lead concentrations. Only Canada geese from the CDA River Basin, in spite of lower blood lead concentrations, had significantly reduced mean hemoglobin and hematocrit values. No euthanized Canada geese (all HYs) from CDA River Basin were classified as clinically lead poisoned, but 38 Canada geese found dead in the CDA River Basin during a concurrent study succumbed to lead poisoning between 1992 and 1997. Only 6 (15.8%) of these 38 contained ingested lead shot, which contrasts greatly with the 75a??94% incidence of ingested lead shot when mortality was due to lead shot ingestion. Lead from other contaminated sources (i.e., sediments and vegetation) in the CDA River Basin was strongly implicated in most Canada goose deaths. Based on the 31 live mallards and Canada geese collected in the CDA River Basin, which were representative of the live populations blood sampled only, the prevalence of subclinical and clinical lead poisoning (as determined by liver lead concentrations, excluding birds with ingested lead shot) was higher in mallards: subclinical (4 of 8, 50% HYs and 6 of 11, 55% adults); clinical (0% HYs and 4 of 11, 36% adults), with less data available for Canada geese (only 1 of 9, 11% HYs marginally subclinical). The clinically lead-poisoned mallards had extremely high concentrations of lead in blood (2.69a??8.82 I?g/g) and liver (6.39a??17.89 I?g/g). Eight mallards found dead in the CDA River Basin during a concurrent study were diagnosed as lead poisoned, and only one (12.5%) contained ingested lead shot, which again strongly implicates other lead sources. The finding of dead lead poisoned Canada geese together with the high percentage of live mallards classified as subclinically or clinically lead poisoned, in combination with the low incidence of ingested lead shot causes us concern for both of these species, which live in association with lead-contaminated sediment in the CDA River Basin.

Henny, Charles J.; Blus, L. J.; Hoffman, D. J.; Sileo, L.; Audet, Daniel J.; Snyder, Mark R.

2000-01-01

197

WATER QUALITY CONDITIONS IN THE MILNER REACH, SNAKE RIVER, SOUTH-CENTRAL IDAHO, OCTOBER 18-21 1977  

EPA Science Inventory

During late October 1977, water discharge form Minidoka Dam into the Milner reach of the Snake River was less than 22 cubic meters per second, compared to normal flows for that time of year of about 42 cubic meters per second or more. To determine if impared water-wquality condi...

198

Influences of Habitat and Hybridization on the Genetic Structure of Redband Trout in the Upper Snake River Basin, Idaho  

Microsoft Academic Search

The genetic structure of redband trout Oncorhynchus mykiss gairdnerii in the upper Snake River basin was investigated at various scales using 13 microsatellite loci. The majority of the genetic variation was partitioned between streams, although differentiation among watersheds was significant. This diversity was probably historically partitioned at the watershed scale when steelhead O. mykiss (anadromous rainbow trout) were present, with

Christine C. Kozfkay; Matthew R. Campbell; Kevin A. Meyer; Daniel J. Schill

2011-01-01

199

Applications of medium range to seasonal\\/interannual climate forecasts for water resources management in the Yakima River basin, Idaho  

Microsoft Academic Search

The Yakima River system supplies the primary inflows for a multi-reservoir project that is managed to support irrigation, environmental flows, and hydropower production. The US Bureau of Reclamation (USBR) coordinates water allocations and reservoir operations based on evolving storage levels and forecasts of summer period streamflow. Streamflow forecasts are currently taken from several sources, including regression-based predictions from the NWS

A. W. Wood; A. C. Steinemann; D. Alexander; S. Shukla

2006-01-01

200

Squaw Creek Culvert Fish Passage Improvement Project. Squaw Creek, Little Salmon River Subbasin North Central Idaho. Completion Report.  

National Technical Information Service (NTIS)

The Squaw Creek culvert fish passage improvement project replaced a perched corrugated metal pipe culvert that was impeding fish passage in Squaw Creek, a tributary to the Little Salmon River, with a bottomless arch culvert. The project was approved and i...

2008-01-01

201

Ground-Water Budgets for the Wood River Valley Aquifer System, South-Central Idaho, 1995-2004.  

National Technical Information Service (NTIS)

This report describes the development of ground-water budgets for the Wood River Valley aquifer system for the 10-year period 1995-2004, as well as for a wet year (1995), and a dry year (2001) within that period. The report also includes discussions of th...

J. R. Bartolino

2009-01-01

202

Digital modeling of radioactive and chemical waste transport in the aquifer underlying the Snake River Plain at the National Reactor Testing Station, Idaho  

USGS Publications Warehouse

Industrial and low-level radioactive liquid wastes at the National Reactor Testing Station (NRTS) in Idaho have been disposed to the Snake River Plain aquifer since 1952. Monitoring studies have indicated that tritium and chloride have dispersed over a 15-square mile (39-square kilometer) area of the aquifer in low but detectable concentrations and have only migrated as far as 5 miles (8 kilometers) downgradient from discharge points. The movement of cationic waste solutes, particularly 90Sr and 137Cs, has been significantly retarded due to sorption phenomena, principally ion exchange. 137Cs has shown no detectable migration in the aquifer and 90Sr has migrated only about 1.5 miles (2 kilometers) from the Idaho Chemical Processing Plant (ICPP) discharge well, and is detectable over an area of only 1.5 square miles ( 4 square kilometers) of the aquifer. Digital modeling techniques have been applied successfully to the analysis of the complex waste-transport system by utilizing numerical solution of the coupled equations of groundwater motion and mass transport. The model includes the effects of convective transport, flow divergence, two-dimensional hydraulic dispersion, radioactive decay, and reversible linear sorption. The hydraulic phase of the model uses the iterative, alternating direction, implicit finite-difference scheme to solve the groundwater flow equations, while the waste-transport phase uses a modified method of characteristics to solve the solute transport equations simulated by the model. The modeling results indicate that hydraulic dispersion (especially transverse) is a much more significant influence than previously suggested by earlier studies. The model has been used to estimate future waste migration patterns for varied assumed hydrological and waste conditions up through the year 2000. The hydraulic effects of recharge from the Big Lost River have an important (but not predominant) influence on the simulated future migration patterns. For the assumed conditions, the model indicates that detectable concentrations of waste chloride and tritium could move as much as 15 miles (24 kilometers) downgradient from the original discharge points by the year 2000. However, the model shows 90Sr moving only 2 to 3 miles (3 to 5 kilometers) downgradient in the same time. The model may also be used to estimate the effects of the various future waste disposal practices and hydrologic conditions on subsequent migration of waste products.

Robertson, J. B.

1974-01-01

203

Relationships between Water, Otolith, and Scale Chemistries of Westslope Cutthroat Trout from the Coeur d'Alene River, Idaho: The Potential Application of Hard-Part Chemistry to Describe Movements in Freshwater  

Microsoft Academic Search

We quantified Mg:Ca, Mn:Ca, Sr:Ca, and Ba:Ca molar ratios from an area representing the summer 2000 growth season on otoliths and scales from 1-year-old westslope cutthroat trout Oncorhyncus clarki lewisi collected from three streams in the Coeur d'Alene River, Idaho, system. We also quantified Mg:Ca, Sr:Ca, and Ba:Ca molar ratios in the water during summer 2000 and used regressions to

Brian K. Wells; Bruce E. Rieman; James L. Clayton; Dona L. Horan; Cynthia M. Jones

2003-01-01

204

Relationships between Water, Otolith, and Scale Chemistries of Westslope Cutthroat Trout from the Coeur d'Alene River, Idaho: The Potential Application of Hard-Part Chemistry to Describe Movements in Freshwater  

Microsoft Academic Search

We quantified Mg:Ca, Mn:Ca, Sr:Ca, and Ba:Ca molar ratios from an area representing the summer 2000 growth season on otoliths and scales from 1-year-old westslope cutthroat trout Oncorhyncus clarki lewisicollected from three streams in the Coeur d'Alene River, Idaho, system. We also quantified Mg:Ca, Sr:Ca, and Ba:Ca molar ratios in the water during summer 2000 and used regressions to model

Brian K. Wells; Bruce E. Rieman; James L. Clayton; Dona L. Horan; Cynthia M. Jones

2003-01-01

205

Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate plus nitrate as nitrogen in ground water in the Idaho part of the western Snake River Plain  

USGS Publications Warehouse

As ground water continues to provide an ever-growing proportion of Idaho?s drinking water, concerns about the quality of that resource are increasing. Pesticides (most commonly, atrazine/desethyl-atrazine, hereafter referred to as atrazine) and nitrite plus nitrate as nitrogen (hereafter referred to as nitrate) have been detected in many aquifers in the State. To provide a sound hydrogeologic basis for atrazine and nitrate management in southern Idaho—the largest region of land and water use in the State—the U.S. Geological Survey produced maps showing the probability of detecting these contaminants in ground water in the upper Snake River Basin (published in a 1998 report) and the western Snake River Plain (published in this report). The atrazine probability map for the western Snake River Plain was constructed by overlaying ground-water quality data with hydrogeologic and anthropogenic data in a geographic information system (GIS). A data set was produced in which each well had corresponding information on land use, geology, precipitation, soil characteristics, regional depth to ground water, well depth, water level, and atrazine use. These data were analyzed by logistic regression using a statistical software package. Several preliminary multivariate models were developed and those that best predicted the detection of atrazine were selected. The multivariate models then were entered into a GIS and the probability maps were produced. Land use, precipitation, soil hydrologic group, and well depth were significantly correlated with atrazine detections in the western Snake River Plain. These variables also were important in the 1998 probability study of the upper Snake River Basin. The effectiveness of the probability models for atrazine might be improved if more detailed data were available for atrazine application. A preliminary atrazine probability map for the entire Snake River Plain in Idaho, based on a data set representing that region, also was produced. In areas where this map overlaps the 1998 map of the upper Snake River Basin, the two maps show broadly similar probabilities of detecting atrazine. Logistic regression also was used to develop a preliminary statistical model that predicts the probability of detecting elevated nitrate in the western Snake River Plain. A nitrate probability map was produced from this model. Results showed that elevated nitrate concentrations were correlated with land use, soil organic content, well depth, and water level. Detailed information on nitrate input, specifically fertilizer application, might have improved the effectiveness of this model.

Donato, Mary M.

2000-01-01

206

Applications of medium range to seasonal/interannual climate forecasts for water resources management in the Yakima River basin, Idaho  

NASA Astrophysics Data System (ADS)

The Yakima River system supplies the primary inflows for a multi-reservoir project that is managed to support irrigation, environmental flows, and hydropower production. The US Bureau of Reclamation (USBR) coordinates water allocations and reservoir operations based on evolving storage levels and forecasts of summer period streamflow. Streamflow forecasts are currently taken from several sources, including regression-based predictions from the NWS and NRCS, and internally-generated Ensemble Streamflow Prediction outputs from an MMS hydrology model. The University of Washington is collaborating with the USBR to evaluate the uses of experimental streamflow forecasts that are derived from medium to long lead climate forecasts from NCEP and CPC, and generated by a water and energy balance land surface model, VIC, that was developed as part of the NOAA/NASA NLDAS initiative. This presentation focuses on the initial results from the project, and more generally on the uses of climate forecast information in the Yakima River basin water management setting.

Wood, A. W.; Steinemann, A. C.; Alexander, D.; Shukla, S.

2006-12-01

207

Field Evaluation of Lead Effects on Canada Geese and Mallards in the Coeur d'Alene River Basin, Idaho  

Microsoft Academic Search

Hatch year (HY) mallards (Anas platyrhynchos) in the Coeur d'Alene (CDA) River Basin had higher concentrations of lead in their blood than HY Western Canada geese (Branta canadensis moffitti) (geometric means 0.98 versus 0.28 ?g\\/g, wet weight). The pattern for adults of both species was similar, although geometric\\u000a means (1.77 versus 0.41 ?g\\/g) were higher than in HY birds. HY

C. J. Henny; L. J. Blus; D. J. Hoffman; L. Sileo; D. J. Audet; M. R. Snyder

2000-01-01

208

Two-station comparison of peak flows to improve flood-frequency estimates for seven streamflow-gaging stations in the Salmon and Clearwater River Basins, Central Idaho  

USGS Publications Warehouse

Improved flood-frequency estimates for short-term (10 or fewer years of record) streamflow-gaging stations were needed to support instream flow studies by the U.S. Forest Service, which are focused on quantifying water rights necessary to maintain or restore productive fish habitat. Because peak-flow data for short-term gaging stations can be biased by having been collected during an unusually wet, dry, or otherwise unrepresentative period of record, the data may not represent the full range of potential floods at a site. To test whether peak-flow estimates for short-term gaging stations could be improved, the two-station comparison method was used to adjust the logarithmic mean and logarithmic standard deviation of peak flows for seven short-term gaging stations in the Salmon and Clearwater River Basins, central Idaho. Correlation coefficients determined from regression of peak flows for paired short-term and long-term (more than 10 years of record) gaging stations over a concurrent period of record indicated that the mean and standard deviation of peak flows for all short-term gaging stations would be improved. Flood-frequency estimates for seven short-term gaging stations were determined using the adjusted mean and standard deviation. The original (unadjusted) flood-frequency estimates for three of the seven short-term gaging stations differed from the adjusted estimates by less than 10 percent, probably because the data were collected during periods representing the full range of peak flows. Unadjusted flood-frequency estimates for four short-term gaging stations differed from the adjusted estimates by more than 10 percent; unadjusted estimates for Little Slate Creek and Salmon River near Obsidian differed from adjusted estimates by nearly 30 percent. These large differences probably are attributable to unrepresentative periods of peak-flow data collection.

Berenbrock, Charles

2003-01-01

209

Ground-Water Budgets for the Wood River Valley Aquifer System, South-Central Idaho, 1995-2004  

USGS Publications Warehouse

The Wood River Valley contains most of the population of Blaine County and the cities of Sun Valley, Ketchum, Haley, and Bellevue. This mountain valley is underlain by the alluvial Wood River Valley aquifer system which consists of a single unconfined aquifer that underlies the entire valley, an underlying confined aquifer that is present only in the southernmost valley, and the confining unit that separates them. The entire population of the area depends on ground water for domestic supply, either from domestic or municipal-supply wells, and rapid population growth since the 1970s has caused concern about the long-term sustainability of the ground-water resource. To help address these concerns this report describes a ground-water budget developed for the Wood River Valley aquifer system for three selected time periods: average conditions for the 10-year period 1995-2004, and the single years of 1995 and 2001. The 10-year period 1995-2004 represents a range of conditions in the recent past for which measured data exist. Water years 1995 and 2001 represent the wettest and driest years, respectively, within the 10-year period based on precipitation at the Ketchum Ranger Station. Recharge or inflow to the Wood River Valley aquifer system occurs through seven main sources (from largest to smallest): infiltration from tributary canyons, streamflow loss from the Big Wood River, areal recharge from precipitation and applied irrigation water, seepage from canals and recharge pits, leakage from municipal pipes, percolation from septic systems, and subsurface inflow beneath the Big Wood River in the northern end of the valley. Total estimated mean annual inflow or recharge to the aquifer system for 1995-2004 is 270,000 acre-ft/yr (370 ft3/s). Total recharge for the wet year 1995 and the dry year 2001 is estimated to be 270,000 acre-ft/yr (370 ft3/s) and 220,000 acre-ft/yr (300 ft3/s), respectively. Discharge or outflow from the Wood River Valley aquifer system occurs through five main sources (from largest to smallest): Silver Creek streamflow gain, ground-water pumpage, Big Wood River streamflow gain, direct evapotranspiration from riparian vegetation, and subsurface outflow (treated separately). Total estimated mean 1995-2004 annual outflow or discharge from the aquifer system is 250,000 acre-ft/yr (350 ft3/s). Estimated total discharge is 240,000 acre-ft/yr (330 ft3/s) for both the wet year 1995 and the dry year 2001. The budget residual is the difference between estimated ground-water inflow and outflow and encompasses subsurface outflow, ground-water storage change, and budget error. For 1995-2004, mean annual inflow exceeded outflow by 20,000 acre-ft/yr (28 ft3/s); for the wet year 1995, mean annual inflow exceeded outflow by 30,000 acre-ft/yr (41 ft3/s); for the dry year 2001, mean annual outflow exceeded inflow by 20,000 acre-ft/yr (28 ft3/s). These values represent 8, 13, and 8 percent, respectively, of total outflows for the same periods. It is difficult to differentiate the relative contributions of the three residual components, although the estimated fluctuations between the wet and dry year budgets likely are primarily caused by changes in ground-water storage. The individual components in the wet and dry year ground-water budgets responded in a consistent manner to changes in precipitation and temperature. Although the ground-water budgets for the three periods indicated that ground-water storage is replenished in wet years, statistical analyses by Skinner and others (2007) suggest that such replenishment is not complete and over the long term more water is removed from storage than is replaced. In other words, despite restoration of water to ground-water storage in wet years, changes have occurred in either recharge and (or) discharge to cause ground-water storage to decline over time. Such changes may include, but are not limited to: lining or abandoning canals and ditches, conversion of surface-water irriga

Bartolino, James R.

2009-01-01

210

Genetic interpretation of lead-isotopic data from the Columbia River basalt group, Oregon, Washington, and Idaho.  

USGS Publications Warehouse

Lead-isotopic data for the high-alumina olivine plateau basalts and most of the Colombia River basalt group plot within the Cascade Range mixing array. The data for several of the formations form small, tight clusters and the Nd and Sr isotopic data show discrete variation between these basalt groups. The observed isotopic and trace-element data from most of the Columbia River basalt group can be accounted for by a model which calls for partial melting of the convecting oceanic-type mantle and contamination by fluids derived from continental sediments which were subducted along the trench. These sediments were transported in the low-velocity zone at least 400 km behind the active arc into a back-arc environment represented by the Columbia Plateau province. With time, the zone of melting moved up, resulting in the formation of the Saddle Mt basalt by partial melting of a 2600 m.y.-old sub-continental lithosphere characterized by high Th/U, Th/Pb, Rb/Sr and Nd/Sm ratios and LREE enrichment. Partial melting of old sub-continental lithosphere beneath the continental crust may be an important process in the formation of continental tholeiite flood basalt sequences world-wide. -L.di H.

Church, S. E.

1985-01-01

211

Water-Resource Trends and Comparisons Between Partial-Development and October 2006 Hydrologic Conditions, Wood River Valley, South-Central Idaho  

USGS Publications Warehouse

This report analyzes trends in ground-water and surface-water data, documents 2006 hydrologic conditions, and compares 2006 and historic ground-water data of the Wood River Valley of south-central Idaho. The Wood River Valley extends from Galena Summit southward to the Timmerman Hills. It is comprised of a single unconfined aquifer and an underlying confined aquifer present south of Baseline Road in the southern part of the study area. Streams are well-connected to the shallow unconfined aquifer. Because the entire population of the area depends on ground water for domestic supply, either from domestic or municipal-supply wells, rapid population growth since the 1970s has raised concerns about the continued availability of ground and surface water to support existing uses and streamflow. To help address these concerns, this report evaluates ground- and surface-water conditions in the area before and during the population growth that started in the 1970s. Mean annual water levels in three wells (two completed in the unconfined aquifer and one in the confined aquifer) with more than 50 years of semi-annual measurements showed statistically significant declining trends. Mean annual and monthly streamflow trends were analyzed for three gaging stations in the Wood River Valley. The Big Wood River at Hailey gaging station (13139500) showed a statistically significant trend of a 25-percent increase in mean monthly base flow for March over the 90-year period of record, possibly because of earlier snowpack runoff. Both the 7-day and 30-day low-flow analyses for the Big Wood River near Bellevue gaging station (13141000) show a mean decrease of approximately 15 cubic feet per second since the 1940s, and mean monthly discharge showed statistically significant decreasing trends for December, January, and February. The Silver Creek at Sportsman Access near Picabo gaging station (13150430) also showed statistically significant decreasing trends in annual and mean monthly discharge for July through February and April from 1975 to 2005. Comparisons of partial-development (ground-water conditions from 1952 to 1986) and 2006 ground-water resources in the Wood River Valley using a geographic information system indicate that most ground-water levels for the unconfined aquifer in the study area are either stable or declining. Declines are predominant in the southern part of the study area south of Hailey, and some areas exceed what is expected of natural fluctuations in ground-water levels. Some ground-water levels rose in the northern part of the study area; however, these increases are approximated due to a lack of water-level data in the area. Ground-water level declines in the confined aquifer exceed the range of expected natural fluctuations in large areas of the confined aquifer in the southern part of the study area in the Bellevue fan. However, the results in this area are approximated due to limited available water-level data.

Skinner, Kenneth D.; Bartolino, James R.; Tranmer, Andrew W.

2007-01-01

212

Pressure-temperature-time paths, prograde garnet growth, and protolith of tectonites from a polydeformational, polymetamorphic terrane: Salmon River suture zone, west-central Idaho  

NASA Astrophysics Data System (ADS)

The metamorphic rocks of the Salmon River suture zone (SRSZ) in west-central Idaho provide a unique glimpse into mid-lower crustal processes during continental growth by island arc accretion. The SRSZ, which separates island arc terranes of the Blue Mountains Province (BMP) from the Mesozoic margin of North America, contains medium to high grade tectonites that record multiple metamorphic and deformation events. The SRSZ is divided by the Pollock Mountain thrust fault (PMtf) into two structural blocks: the higher-grade Pollock Mountain plate (PMp), and the lower-grade, underlying Rapid River plate (RRp). Previous studies interpreted pre-144 Ma metamorphism within the SRSZ related to assembly of the BMP. Counter-clockwise P-T paths for metamorphism within the RRp [peak=8--9 kbar ˜600°C, retrograde=5--7 kbar, 450--525°C] were inferred to include prograde garnet growth during pre-144 Ma loading followed by garnet growth during rapid cooling due to lithospheric delamination. The PMp was interpreted to have subsequently been buried to increasing depth and metamorphosed again at 128 Ma as a result of the BMP docking with North America. New P-T-t paths for the RRp and PMp constructed from geochronology, geothermobarometry, pseudosections, and petrography suggest that after loading, slow cooling rates caused diffusion in garnet rims, which produced counter-clockwise P-T paths. Garnet Sm-Nd ages of 112.5+/-1.5 Ma from the RRp, and 141--124 Ma from the PMp suggest that metamorphism within the SRSZ is diachronous and that crustal thickening was protracted occurring between 141--112 Ma. P-T-t paths between both plates indicate that the PMp reached peak metamorphism prior to peak metamorphism of the RRp. This suggests that the PMp was buried prior to the development of the PMtf. The RRp was subsequently buried along the PMtf, which was followed by development of the Rapid River thrust fault, which juxtaposed RRp schists onto the Wallowa terrane of the BMP. This model suggests that metamorphism in the SRSZ was controlled by individual thrust faults instead of recording collisions between terranes and is consistent with a prolonged burial of rocks in the SRSZ followed by slow cooling that does not require lithospheric delamination to account for retrograde P-T estimates.

McKay, Matthew Paul

213

Lithologic and hydraulic controls on network-scale variations in sediment yield: Big Wood and North Fork Big Lost Rivers, Idaho  

NASA Astrophysics Data System (ADS)

Channel morphology and sediment textures in streams and rivers are a product of the flux of sediment and water conveyed to channel networks. Differences in sediment supply between watersheds should thus be reflected by differences in channel and bed-material properties. In order to address this directly, field measurements of channel morphology, substrate lithology, and bed sediment textures were made at 35 sites distributed evenly across two adjacent watersheds in south-central Idaho, the Big Wood River (BW) and N. Fork Big Lost River (NBL). Measurements of sediment transport indicate a five-fold difference in sediment yields between these basins, despite their geographic proximity. Three dominant lithologic modes (an intrusive and extrusive volcanic suite and a sedimentary suite) exist in different proportions between these basins. The spatial distribution of lithologies exhibits a first-order control on the variation in sediment supply, bed sediment textures, and size distribution of the bed load at the basin outlet. Here we document the coupled hydraulic and sedimentologic structuring of these stream channel networks to differences in sediment supply. The results show that width and depth are remarkably similar between the two basins across a range in channel gradient and drainage area, with the primary difference being decreased bed armoring in the NBL. As a result, dimensionless shear stress (?*) increases downstream in the NBL with an average value of 0.073, despite declining slope. The opposite is true in the BW where ?* averages 0.048. Lithologic characterization of the substrate indicates that much of the discrepancy in bed armoring can be attributed to an increasing downstream supply of resistant intrusive granitic rocks to the BW, whereas the NBL is dominated by erodible extrusive volcanic and sedimentary rocks. A simple modeling approach using an excess shear stress-based bed load transport equation and observed channel geometry shows that subtle changes in sediment texture can reproduce the marked difference in sediment yield between basins. This suggests that in gravel-bed streams the flux of sediment through the channel network is governed as much by textural changes as by morphological changes, and that these textural changes are tightly coupled to source area lithology.

Mueller, E. R.; Pitlick, J.; Smith, M. E.

2008-12-01

214

Preliminary Multi-Isotopic Data and Potential Regional Connections for Late Cenozoic Basalts of the Western Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

Previous research regarding the origin and evolution of Snake River Plain (SRP) basalts west of the 116° meridian has utilized field mapping, petrographic and geochemical data, and some Sr-isotopic analyses. These studies showed that in the past 2 m.y. at least three suites of chemically and isotopically distinct basalts were produced. The oldest (1.0 Ma to 1.6 Ma) are iron-rich tholeiitic basalts (N-tholeiities); the intermediate suite (0.90 Ma) is tholeiitic with an usually high phosphorus content (P-tholeiites); and the youngest basalts (< 0.50 Ma) are mildly alkaline (A-lavas). The current study presents Sr, Nd, and Pb isotopic data for basalts collected from each of these suites. Temporal trends in isotopic systematics of western SRP basalts, from N-tholeiites (87Sr/86Sr > 0.707, epsilon Nd < -4, 206Pb/204Pb < 18.5) to younger P-tholeiites and A-lavas (87Sr/86Sr < 0.706, epsilon Nd from -2 to 0, 206Pb/204Pb > 18.5), are comparable to Late Cenozoic basalts of nearby provinces. These trends are nearly identical to those exhibited by the Boise River Group (BRG) northeast of the study area. In eastern Oregon, the Jordan Valley Volcanic Field (JVVF) also displays similar trends; however the JVVF data are slightly offset to less radiogenic Sr and more radiogenic Nd. This may be controlled by differences in the character of the underlying lithospheric mantle across the western boundary of the North American craton. Further comparisons show the N-tholeiites are isotopically similar to the Saddle Mountain basalts of the Columbia River Group (CRG), which are attributed a subcontinental lithospheric mantle source. In contrast, the P- tholeiites and A-lavas trend toward the isotopically depleted Imnaha basalts of the CRG. These, and the younger alkaline rocks of the BRG and JVVF, are interpreted to be derived from a deeper asthenospheric source. We interpret our data as recording a similar lithospheric to asthenospheric source transition for basalt magma genesis in the western SRP. The similarities in evolution of basaltic volcanism across this area imply that similar processes generate and modify magmas on a regional scale.

Rivera, T. A.; White, C. M.; Schmitz, M. D.

2007-12-01

215

Geothermal resources of southern Idaho  

SciTech Connect

The geothermal resource of southern Idaho as assessed by the U.S. Geological Survey in 1978 is large. Most of the known hydrothermal systems in southern Idaho have calculated reservoir temperatures of less than 150 C. Water from many of these systems is valuable for direct heat applications. A majority of the known and inferred geothermal resources of southern Idaho underlie the Snake River Plain. However, major uncertainties exist concerning the geology and temperatures beneath the plain. The largest hydrothermal system in Idaho is in the Bruneau-Grang View area of the western Snake River Plain with a calculated reservoir temperature of 107 C and an energy of 4.5 x 10 to the 20th power joules. No evidence of higher temperature water associated with this system was found. Although the geology of the eastern Snake River Plain suggests that a large thermal anomaly may underlie this area of the plain, direct evidence of high temperatures was not found. Large volumes of water at temperatures between 90 and 150 C probably exist along the margins of the Snake River Plain and in local areas north and south of the plain.

Mabey, D.R.

1983-01-01

216

Origin of magmatic sulfides in a Proterozoic island arc—an example from the Portneuf-Mauricie Domain, Grenville Province, Canada  

NASA Astrophysics Data System (ADS)

The Portneuf-Mauricie Domain (PMD), located in the south-central part of the Grenville province, contains Mesoproterozoic Ni-Cu ± platinum-group element (PGE) prospects hosted in a variety of plutonic intrusions (layered, with simple structures, or zoned) and emplaced in a mature island arc setting. A two-stage model is envisaged to explain the formation of magmatic sulfides. An early loss of a small amount of sulfides in the conduits of primitive, hydrous mantle-derived melts under high fO2, resulted in depletion of the magmas in chalcophile and precious metals (Cu/Pd ratios vary from initial mantle values up to 1.6 × 106). Then, nearer the mineralized zones, the magmas interacted with sulfide-bearing country rocks, resulting in felsification of the magmas, assimilation of crustal sulfur ( ? 34S values up to +5.5‰), and the formation of an immiscible sulfide liquid. Liquid-sulfide formation was followed by variable interactions between the silicate and sulfide magmas, which were responsible for the enrichment of sulfides in Ni, Cu, and, locally, PGE. Indeed, low R factors are found for prospects hosted in intrusions with a simple internal structure and in layered intrusions whereas high R factors are found for prospects hosted in zoned intrusions. Finally, sulfide melt may have been partly incorporated into later pulses of magma and injected into shallow magma chambers to form the PMD prospects. The PMD prospects share common characteristics with other well-known deposits (Aguablanca, Vammala, Stormyrplunen, and deposits in Alaskan/Ural-type intrusions), attesting to the Ni, Cu, and PGE potential of deposits associated with subduction-zone settings.

Sappin, Anne-Aurélie; Constantin, Marc; Clark, Thomas

2011-03-01

217

Origin of magmatic sulfides in a Proterozoic island arc—an example from the Portneuf-Mauricie Domain, Grenville Province, Canada  

NASA Astrophysics Data System (ADS)

The Portneuf-Mauricie Domain (PMD), located in the south-central part of the Grenville province, contains Mesoproterozoic Ni-Cu ± platinum-group element (PGE) prospects hosted in a variety of plutonic intrusions (layered, with simple structures, or zoned) and emplaced in a mature island arc setting. A two-stage model is envisaged to explain the formation of magmatic sulfides. An early loss of a small amount of sulfides in the conduits of primitive, hydrous mantle-derived melts under high fO2, resulted in depletion of the magmas in chalcophile and precious metals (Cu/Pd ratios vary from initial mantle values up to 1.6 × 106). Then, nearer the mineralized zones, the magmas interacted with sulfide-bearing country rocks, resulting in felsification of the magmas, assimilation of crustal sulfur (? 34S values up to +5.5‰), and the formation of an immiscible sulfide liquid. Liquid-sulfide formation was followed by variable interactions between the silicate and sulfide magmas, which were responsible for the enrichment of sulfides in Ni, Cu, and, locally, PGE. Indeed, low R factors are found for prospects hosted in intrusions with a simple internal structure and in layered intrusions whereas high R factors are found for prospects hosted in zoned intrusions. Finally, sulfide melt may have been partly incorporated into later pulses of magma and injected into shallow magma chambers to form the PMD prospects. The PMD prospects share common characteristics with other well-known deposits (Aguablanca, Vammala, Stormyrplunen, and deposits in Alaskan/Ural-type intrusions), attesting to the Ni, Cu, and PGE potential of deposits associated with subduction-zone settings.

Sappin, Anne-Aurélie; Constantin, Marc; Clark, Thomas

2010-12-01

218

Magma Flow and the Redistribution of Crystals in Shallow Intrusions at Sinker Butte Volcano, Western Snake River Plain, Idaho  

NASA Astrophysics Data System (ADS)

Sinker Butte is the erosional remnant of one of the largest tholeiitic volcanoes in the western Snake River Plain. Because the edifice was dissected by the Snake River, a nearly complete record of its eruptions is exposed in the walls and alcoves of the canyon. The stratigraphy indicates that initial eruptions produced a shield cone composed of many thin pahoehoe flows. The effusive phase was followed by a series of phreatomagmatic explosions that built a very large tuff cone with a summit crater complex up to 1 km across. A final series of magmatic eruptions filled the tuff cone crater with lava and produced at least 20 radial dikes and other small intrusions, some of which appear to have fed late stage flank eruptions. About 80 oriented drill cores collected from 7 of the radial dikes were analyzed for anisotropy of magnetic susceptibility (AMS). Average magnetic lineations, which are assumed to reflect flow directions, are nearly horizontal for two of the dikes; the others plunge downward and away from the crater area at angles of 45o to 70o. The AMS data are consistent with the propagation of radial dikes outward from a column of magma in the upper part of the edifice, possibly beneath a lava lake. Steeply dipping flow directions in some of the dikes may indicate late downward flow in response to draining of magma during breakouts on the lower flanks of the tuff cone. Crystal clots composed of plagioclase and olivine are abundant in many of the lavas and intrusive sheets, and chemical variations throughout the suite can be attributed to the redistribution of these minerals. Microprobe analyses of olivines in samples in known stratigraphic order indicate at least one recharge event took place during the life of the volcano. It is suggested here that pulses of ascending magma disrupted mushy cumulates along the walls and floors of the shallow plumbing system. Crystal clots in the lavas and dikes are interpreted to be fragments of these cumulates. High abundances of clots in the interiors of some of the radial dikes suggest they were concentrated by flowage differentiation. This process, operating in small conduits throughout the edifice, may have contributed to the overall chemical diversity observed in the suite of lavas and tephras at Sinker Butte.

White, C. M.; Kurz, K. R.

2007-12-01

219

Determination of Background Uranium Concentration in the Snake River Plain Aquifer under the Idaho National Engineering and Environmental Laboratory's Radioactive Waste Management Complex  

SciTech Connect

Uranium occurs naturally in the environment and is also a contaminant that is disposed of at the Radioactive Waste Management Complex (RWMC) at the Idaho National Engineering and Environmental Laboratory. To determine whether uranium concentrations in the Snake River Plain Aquifer, which underlies the laboratory, are elevated as a result of migration of anthropogenic uranium from the Subsurface Disposal Area in the RWMC, uranium background concentrations are necessary. Guideline values are calculated for total uranium, 234U, 235U, and 238U from analytical results from up to five datasets. Three of the datasets include results of samples analyzed using isotope dilution thermal ionization mass spectrometry (ID-TIMS) and two of the datasets include results obtained using alpha spectrometry. All samples included in the statistical testing were collected from aquifer monitoring wells located within 10 miles of the RWMC. Results from ID-TIMS and alpha spectrometry are combined when the data are not statistically different. Guideline values for total uranium were calculated using four of the datasets, while guideline values for 234U were calculated using only the alpha spectrometry results (2 datasets). Data from all five datasets were used to calculate 238U guideline values. No limit is calculated for 235U because the ID-TIMS results are not useful for comparison with routine monitoring data, and the alpha spectrometry results are too close to the detection limit to be deemed accurate or reliable for calculating a 235U guideline value. All guideline values presented represent the upper 95% coverage 95% confidence tolerance limits for background concentration. If a future monitoring result is above this guideline, then the exceedance will be noted in the quarterly monitoring report and assessed with respect to other aquifer information. The guidelines (tolerance limits) for total U, 234U, and 238U are 2.75 pCi/L, 1.92 pCi/L, and 0.90 pCi/L, respectively.

Molly K. Leecaster; L. Don Koeppen; Gail L. Olson

2003-06-01

220

The timing of tertiary metamorphism and deformation in the Albion-Raft River-Grouse Creek metamorphic core complex, Utah and Idaho  

USGS Publications Warehouse

The Albion-Raft River-Grouse Creek metamorphic core complex of southern Idaho and northern Utah exposes 2.56-Ga orthogneisses and Neoproterozoic metasedimentary rocks that were intruded by 32-25-Ma granitic plutons. Pluton emplacement was contemporaneous with peak metamorphism, ductile thinning of the country rocks, and top-to-thewest, normal-sense shear along the Middle Mountain shear zone. Monazite and zircon from an attenuated stratigraphic section in the Middle Mountain were dated with U-Pb, using a SHRIMP-RG (reverse geometry) ion microprobe. Zircons from the deformed Archean gneiss preserve a crystallization age of 2532 ?? 33 Ma, while monazites range from 32.6 ?? 0.6 to 27.1 ?? 0.6 Ma. In the schist of the Upper Narrows, detrital zircons lack metamorphic overgrowths, and monazites produced discordant U-Pb ages that range from 52.8 ?? 0.6 to 37.5 ?? 0.3 Ma. From the structurally and stratigraphically highest unit sampled, the schist of Stevens Spring, narrow metamorphic rims on detrital zircons yield ages from 140-110 Ma, and monazite grains contained cores that yield an age of 141 ??2 Ma, whereas rims and some whole grains ranged from 35.5 ?? 0.5 to 30.0 ?? 0.4 Ma. A boudinaged pegmatite exposed in Basin Creek is deformed by the Middle Mountains shear zone and yields a monazite age of 27.6 ?? 0.2 Ma. We interpret these data to indicate two periods of monazite and metamorphic zircon growth: a poorly preserved Early Cretaceous period (???140 Ma) that is strongly overprinted by Oligocene metamorphism (???32-27 Ma) related to regional plutonism and extension. ?? 2011 by The University of Chicago.

Strickland, A.; Miller, E. L.; Wooden, J. L.

2011-01-01

221

Distinct Regimes: Using Hypsometry and Field Observations to Predict the Hydrologic and Geomorphic Response to Changes in Precipitation Phases within the Salmon River, Idaho  

NASA Astrophysics Data System (ADS)

Increases in surface temperatures caused by climate warming threaten the availability of water resources within snow-dominated catchments by altering the phase of precipitation, decreasing seasonal snow accumulation, and causing earlier spring runoff. Because increased surface temperatures elevate snow lines, we explore how this change can decrease the volume of seasonal snow accumulation and alter the timing and magnitude of water delivery to channels. To investigate how precipitation regime dictates stream hydrographs and morphology, we first completed a hypsometric analysis on 30m DEM datasets to identify twelve tributary study catchments located along the Salmon River in central Idaho. These sites were selected because they fall into distinct elevation bands and are either uniquely sensitive (or insensitive) to changing snowline. The elevation zones are as follows; high (2200 - 3200 m), mid (1000 - 2200 m), and low (400 - 1800 m). The extents of these elevation bands were chosen because they correspond to three distinct climatic regimes found within the Salmon River watershed. Low elevations are dominated by liquid precipitation. Mid elevations receive mixed precipitation, alternating between rain and snow depending on the year and the season. High elevations are dominated by snow precipitation. Each catchment’s hydrograph is constructed by measuring stage with high temporal resolution pressure transducers. A stage-discharge relationship was established through frequent measurements over a broad range of flows. Basins with a large percentage of their total area, in isolated elevation ranges close to the current snowline, are more likely to experience drastic changes in their hydrographs. For example, preliminary winter-time snow cover estimates indicate Teleher Creek Basin, a low elevation basin, to have a total cumulative area of 75% that is snow-covered under current snow line elevations. If, however, the snow line rises 100 meters in elevation, the basin would experience a 35% reduction in snow covered area. If the snowline increases 200 meters in elevation, there would be a 65% reduction in basin area covered by snow. Our data indicate that each elevation zone produces a unique hydrologic signature that seems to be somewhat independent of basin size. This complicates the common hydrologic principle that discharge scales with drainage area. We also find that the timing of peak annual discharge for streams in low elevations is significantly offset from those in high elevations. These results have the important implication for predictive hydrologic models that the topographic form and elevation distribution of a watershed can explicitly determine its sensitivity to warming temperatures.

Tennant, C. J.; Crosby, B. T.

2009-12-01

222

The role of episodic fire-related debris flows on long-term (103-104) sediment yields in the Middle Fork Salmon River Watershed, in central Idaho  

NASA Astrophysics Data System (ADS)

Episodic fire-related debris flows contribute large amounts of sediment and large woody debris to streams. This study evaluates fire-related sedimentation from small steep tributaries of the Middle Fork Salmon River (MFSR) in central Idaho to evaluate the timing, frequency, and magnitude of episodic fire-related sedimentation on long-term (10 3-10 4) sediment yields. The MFSR lies within the Northern Rocky Mountains and encompasses a range of ecosystems including high elevation (~3,000 -1,700 m) subalpine pine and spruce forests, mid-elevation (2650 - 1130 m) montane Douglas-fir and ponderosa pine-dominated forests and low elevation (~ 1,800 - 900 m) sagebrush steppe. Recent debris flow events in tributaries of the MFSR appear to primarily result from increased surface runoff, rilling, and progressive sediment bulking following high severity fires. This study estimates: 1) the volume of sediment delivered by four recent (1997-2008) fire-related debris flow events using real time kinematic GPS surveys, and 2) the timing of Holocene fire-related debris flow events determined by 14C dating charcoal fragments preserved in buried burned soils and within fire-related deposits. Our measured volumes of the four recent debris flow events are compared to two empirically derived volume estimates based on remotely sensed spatial data (burn severity and slope), measured geometric data (longitudinal profile, cross sectional area, flow banking angle), and precipitation records. Preliminary stratigraphic profiles in incised alluvial fans suggest that a large percentage of alluvial fan thickness is composed of fire-related deposits suggesting fire-related hillslope erosion is a major process delivering sediment to alluvial fans and to the MFSR. Fire-related deposits from upper basins compose ~71% of total alluvial fan thickness, while fire-related deposits from lower basins make up 36% of alluvial fan thickness. However, lower basins are less densely vegetated with small diameter woody material, which reduces size and preservation of charcoal fragments in lower elevation deposits. We hypothesize that fires burn during dry and/or variable climate conditions; therefore aggradation on alluvial fans, incision and abandonment of fan surfaces, and sediment yields are increased during dry and/or variable climate conditions. Preliminary results indicate that periods of fire and accelerated sedimentation vary with ecosystem type. Lower basins burned ~6500, ~900, and ~400 cal yr BP, while fire in upper basins occurred ~8200, 5400, 3800, 1300, and 500 cal yr BP. These preliminary results suggest different ecosystems respond to different climate drivers. Regional estimates of long-term (6,300 yr) sediment yields derived from cosmogenic nuclides (Kirchner et al., 2001) compared with episodic fire-related sedimentation (Meyer and Pierce 2003) indicate episodic events are orders of magnitude higher than long-term average rates, suggesting that large fire-related debris flows occur on average once every ~400 yr. Determining the timing, frequency, and magnitude of fire-related sedimentation events over the past ~ 8 ka help us assess the impact of episodic fire-related events on long-term (Holocene) average sediment yields in central Idaho.

Riley, K. E.; Pierce, J. L.; Hopkins, A.

2010-12-01

223

Movement, swimming speed, and oxygen consumption of juvenile white sturgeon in response to changing flows, water temperatures, and light level in the Snake River, Idaho  

SciTech Connect

The flow of the Snake River downstream of Hells Canyon Dam, Idaho, frequently fluctuates as the dam responds to power production requirements. These flow fluctuations have the potential to increase the energy used by individual juvenile white sturgeon (Acipenser transmontanus) that move to avoid unfavorable habitat or that alter their swimming speeds to maintain position over a range of velocities. Following swimming respirometry experiments, a field study using electromyogram (EMG) and sonic telemetry evaluated whether sturgeon were being negatively affected by operations of Hells Canyon Dam during three study periods where flows were artificially fluctuated (247 to 856 m3/s), held high and stable (438 to 600 m3/s), or held low and stable (275 to 284 m3/s). Respirometry results confirmed that oxygen consumption of juvenile sturgeon increased with swim speed and was temperature dependent, and when corrected for fish mass, ranged from 140.2 to 306.5 mg O2 kg-1 h-1. The telemetry study showed that movements and activity levels, as measured by swimming speeds and oxygen consumption, of sturgeon were variable among fish and across study periods. When flows were held low and stable, sturgeon movement increased while activity levels decreased when compared to the study periods when flows were variable or were high and stable. Although the overall trend was for activity levels to be less during the study period when flows were low and stable, the majority of differences between study periods appeared to be due to differences in water temperature and light levels that changed during the three-month investigation. The results suggest high flows, even those of relatively short durations such as what occurs during load-following operations, restrict the movement of juvenile sturgeon, but do not result in an increase of energy expenditure, possibly because of morphological and behavioral adaptations to living in a high-velocity environment. This may have significant implications to sturgeon survival by altering foraging behavior or inter and intra-specific competition.

Geist, David R.; Brown, Richard S.; Cullinan, Valerie I.; Brink, Steve R.; Lepla, Kenneth B.; Bates, Phil; Chandler, James A.

2005-07-01

224

The effect of mining and related activities on the sediment-trace element geochemistry of Lake Coeur d'Alene, Idaho, USA. Part III. Downstream effects: The Spokane River Basin  

USGS Publications Warehouse

During 1998/1999, surface and subsurface sediment samples were collected along the entire length of the Spokane River from its outlet at the northern end of Lake Coeur d'Alene (CDA), Idaho, to Lake Roosevelt on the Columbia River, Washington. The study was conducted to determine if the trace element enrichments observed in Lake CDA and on the floodplain and in the CDA River extend through the Spokane River Basin (SRB). As in Lake CDA, surface sediments in the SRB are enriched in Pb, Zn, As, Cd, Sb and Hg relative to local background levels. Pb, Cd and Zn are the most elevated, with maximum enrichment occurring in the upper Spokane River in close proximity to Lake CDA. On average, enrichment decreases downstream, apparently reflecting both increased distance from the inferred source (the CDA River Basin), as well as increased dilution by locally derived but unenriched materials. Only Cd and Zn display marked enrichment throughout the SRB. Pb, Zn and Cd seem to be associated mainly with an operationally defined iron oxide phase, whereas the majority of the As and Sb seem to be matrix-held. Subsurface sediments also are enriched in Pb, Zn, As, Cd, Sb and Hg relative to background levels. Based on 137Cs and excess 210Pb dating, trace element enrichment began in the middle part of the SRB (Long Lake) between 1900 and 1920. This is contemporaneous with similar enrichments observed in Lake CDA, as well as the completion of Long Lake Dam (1913). In the most downstream part of the basin (Spokane River Arm of Lake Roosevelt), enrichment began substantially later, between 1930 and 1940. The temporal difference in enrichment between Long Lake and the River Arm may reflect the latter's greater distance from the presumed source of the enrichment (the CDA River Basin); however, the difference is more likely the result of the completion of Grand Coulee Dam (1934-1941), which formed Lake Roosevelt, backed up the Spokane River, and increased water levels in the River Armby about 30 m.

Grosbois, C. A.; Horowitz, A. J.; Smith, J. J.; Elrick, K. A.

2001-01-01

225

Contaminant Monitoring Strategy for Henrys Lake, Idaho  

Microsoft Academic Search

Henrys Lake, located in southeastern Idaho, is a large, shallow lake (6,600 acres, â 17.1 feet maximum depth) located at 6,472 feet elevation in Fremont Co., Idaho at the headwaters of the Henrys Fork of the Snake River. The upper watershed is comprised of high mountains of the Targhee National Forest and the lakeshore is surrounded by extensive flats and

John S. Irving; R. P. Breckenridge

1992-01-01

226

From Snow to Rain: Assessing streamflow sensitivity to changes in climate using a hydrologic model for the Salmon River Basin, Idaho  

Microsoft Academic Search

A study of the influences of climate changes in water resource in Salmon River Basin (SRB) is presented. The Salmon River starts in high elevation, mountainous, forest headwaters as an unimpaired river system. Accelerated Climate models for the next 100 years in western North America consistently predict progressive increase in temperature. This change in temperature in mountainous environments will drive

C. Tang; B. T. Crosby; J. M. Wheaton

2009-01-01

227

Wildland\\/Urban Interface and Communities at Risk Joint Fire Modeling Project for Bannock County, Idaho Bureau of Land Management, Upper Snake River District GIS And Idaho State University GIS Training and Research Center  

Microsoft Academic Search

Wildland\\/Urban Interface (WUI) fires and Communities at Risk (CAR) projects are high priorities to federal land management agencies. It is important that the federal government help educate homeowners, firefighters, local officials, and land managers regarding the risk of wildland fire. The Bureau of Land Management's (BLM) Upper Snake River District (USRD) Geographic Information Systems (GIS) team and the GIS Training

Chad Gentry

228

Fire, storms, and erosional events in the Idaho batholith  

Microsoft Academic Search

In late December 1996, the South Fork Payette River basin in west-central Idaho experienced a prolonged storm that culminated on January 1, 1997, with intense rain on melting snow that triggered slide failures, producing debris flows and sediment-charged floods. Failures occurred in saturated, cohesionless, grussy colluvium derived from weathered Idaho batholith granitic rocks. Many failures along the South Fork Payette

G. A. Meyer; J. L. Pierce; S. H. Wood; A. J. T. Jull

2001-01-01

229

Impeller flow-meter logging of vertical cross flow between basalt aquifers through wells at the Idaho National Engineering Laboratory, Eastern Snake River Plain, Idaho. Progress report, June 22, 1992  

SciTech Connect

An impeller flowmeter was used with a COLOG digital acquisition system to determine existing borehole flows, to compare with previous logging results, and to acquire flow measurements of vertical cross-flow of water in the wells between permeable zones in the open-hole intervals. The direction of flow found was predominantly downward with velocities ranging from 0-30 ft/min. Some flow reversals were noted and attributed to nearby pumping wells. USGS wells 44 and 46 were studied in September, 1991 near the Idaho Chemical Processing Plant (ICPP). The results showed a usual overall flow direction downward with flow entering the wells at around 510 to 600 ft. below the land surface. Water exited these wells at lower levels around 550 to 580 ft. Flow velocities ranged up to 24 ft/min. Using published aquifer parameters, the rate of propagation of a pressure change in an aquifer was calculated for the well CPP-2 turning on and off, at 3100 gpm.

Bennecke, W.M.; Wood, S.H.

1992-12-31

230

Tectonic evolution of the Priest River complex, northern Idaho and Washington: A reappraisal of the Newport fault with new insights on metamorphic core complex formation  

Microsoft Academic Search

New geologic mapping, 40Ar\\/39Ar thermochronometry, and geobarometry in the Middle Eocene Priest River metamorphic core complex provide the basis for unraveling the role of en echelon fault systems in core complex formation and for determining the scale of crustal fragments that form during continental extension. Four faults occur in the Priest River complex. The east verging Purcell Trench fault zone

P. Ted Doughty; Raymond A. Price

1999-01-01

231

Scale-dependent genetic structure of the Idaho giant salamander ...  

Treesearch

... of streams and rivers constrains evolutionary, demographic and ecological processes of freshwater organisms. ... We examined genetic structure and gene flow in the facultatively paedomorphic Idaho giant ... Last Modified: April 3, 2013.

232

Idaho Field Experiment 1981. Volume 1. Experimental design and measurement systems  

Microsoft Academic Search

The Idaho Field Experiment is reported in three volumes and supplemented by special contractor reports. Volume I describes the design and goals of the measurement program and the measurement systems utilized during the field program. The measurement systems layouts are described as well. The 1981 Idaho Field Experiment was conducted in South East Idaho over the Upper Snake River Plain.

G. E. Start; J. H. Cate; C. R. Dickson; J. F. Sagendorf; G. R. Ackermann

1983-01-01

233

Summary of analytical results for hydrologic studies of wells open through large intervals of the Snake River plain aquifer at the Idaho National Engineering Laboratory, project 1  

SciTech Connect

This report summarizes results of groundwater analyses for samples collected from wells USGS-44, -45, -46 and -59 in conjunction with the INEL Oversight Program straddle-packer project between 1992 and 1995. The purpose of this project was to develop and deploy a high-quality straddle-packer system for characterization of the three-dimensional geometry of solute plumes and aquifer hydrology near the Idaho Chemical Processing Plant (ICPP). Principle objectives included (1) characterizing vertical variations in aquifer chemistry; (2) documenting deviations in aquifer chemistry from that monitored by the existing network, and (3) making recommendations for improving monitoring efforts.

McCurry, M.; Welhan, J.A.

1996-07-01

234

Idaho Fish Screening Improvements Final Status Report.  

SciTech Connect

This project funds two Idaho Department of Fish and Game (IDFG) fish habitat biologists to develop, secure funding for, and implement on-the-ground fish habitat improvement projects in the lower Clearwater River drainage and the upper Salmon River drainage. This report summarizes project activity during the first year of funding. The Clearwater Region fish habitat biologist began work on January 28, 2008 and the Salmon Region habitat biologist began on February 11, 2008.

Leitzinger, Eric J.

2008-11-12

235

Status of Yellowstone Cutthroat Trout in Idaho  

Microsoft Academic Search

In this study, we electrofished 961 study sites to estimate the abundance of trout (in streams only) throughout the upper Snake River basin in Idaho (and portions of adjacent states) to determine the current status of Yellowstone cutthroat trout Oncorhynchus clarkii bouvierii and other nonnative salmonids and to assess introgressive hybridization between Yellowstone cutthroat trout and rainbow trout O. mykiss.

Kevin A. Meyer; Daniel J. Schill; James A. Lamansky Jr; Matthew R. Campbell; Christine C. Kozfkay

2006-01-01

236

Idaho Geothermal Commercialization Program. Idaho geothermal handbook  

SciTech Connect

The following topics are covered: geothermal resources in Idaho, market assessment, community needs assessment, geothermal leasing procedures for private lands, Idaho state geothermal leasing procedures - state lands, federal geothermal leasing procedures - federal lands, environmental and regulatory processes, local government regulations, geothermal exploration, geothermal drilling, government funding, private funding, state and federal government assistance programs, and geothermal legislation. (MHR)

Hammer, G.D.; Esposito, L.; Montgomery, M.

1980-03-01

237

WEISER-LOWER PAYETTE WATER QUALITY SURVEYS, IDAHO, AUGUST - DECEMBER 1975  

EPA Science Inventory

In 1975, cooperative water quality surveys were conducted on the Weiser and Payette Rivers (17050122, 17050124) by Idaho Department of Health and Welfare and the Environmental Protection Agency. The area is located in the Middle Snake River Basin in Idaho. Surveys were done dur...

238

Contaminant Pathways and Metal Sequestration Patterns in the Lower Coeur d'Alene River Valley, Idaho: Mechanics of Trace Metal Mobility  

NASA Astrophysics Data System (ADS)

Remediating fluvial systems impacted by sulfide mining requires characterization of contaminant mobility and the pathways of trace metal transport. Variations in sediment mobility, mineral stability, organic content, redox conditions, microbial activity and other factors between fluvial subenvironments leads to complex metal sequestration patterns. Precise characterization of contaminants requires a detailed assessment of the physical characteristics of mineral species together with an understanding of the chemical stability of these species under various conditions. An integrated analytical methodology including calibrated sequential extraction and electron microscopy (SEM and TEM) provides unprecedented insight into metal speciation and behavior in different fluvial subenvironments. Three transects, including river channel, levee, wetland and lacustrine environments, along the 30km length of the lower Coeur d'Alene (CdA) River valley demonstrate both the lateral consistency within various fluvial subenvironments and the dramatic variations between subenvironments. The lower CdA River valley is a low gradient (<5m/km) meandering stream with a well-developed river channel contained by 1-3m levees. The combination of low gradient and an artificially controlled base level results in a quiescent, stratified water mass and anaerobic river channel sediments. The river channel sediments contain abundant detrital and authigenic sulfide minerals (PbS, FeS2, ZnS) and carbonates (PbCO3, FeCO3) and locally, sulfide encrusted organic matter. The river is the main conduit of contaminated sediment derived from the mining district upstream, but more importantly, remobilized anoxic river bottom sediments are responsible for ongoing trace metal contamination throughout the fluvial system. Sulfide rich channel sediments are remobilized during flood events, and redistributed into adjacent levee, wetland, and lacustrine environments. Detrital and authigenic sulfides are rapidly oxidized within the levee environment, resulting in extensive precipitation of Zn-Pb-Mn-Fe oxy-hydroxides on stable silicate substrates. On levees, carbonate minerals (primarily PbCO3, FeCO3) undergo dissolution coincident with the oxidation of FeS2. Oxy-hydroxides are then easily remobilized and transported into adjacent wetland and lacustrine environments during subsequent high flow events, where they are rapidly dissociated under anoxic conditions. Both detrital and authigenic sulfides from the river channel and oxy-hydroxides from the levee supply trace metals to the wetland and lacustrine environments during washover events. The low oxygen values, high organic content and high microbial activity produce anaerobic conditions yielding abundant microcrystalline, nanocrystalline, and amorphous sulfides (ZnS, PbS, FeS2, mixed sulfides). The degree of crystallinity, and therefore the degree of bioavailability, seems to be a function of recharge intervals and periodic changes in the redox conditions. Analysis of three transects along the length of the lower CdA system indicates that there is minimal downstream variation within any single fluvial subenvironment. Trace metal mobility is primarily a function of flood-generated remobilization of anoxic river channel sediments, and subsequent oxidation-reduction reactions occurring during episodic transport across the flood plain. Lacustrine environments display differences in speciation patterns resulting from the relative degree of isolation from flood recharge. Effective remediation in the lower CdA river valley requires limiting the disturbance of river bottom sediments during flood events.

Strumness, L. A.; Hooper, R. L.; Mahoney, J. B.

2004-05-01

239

Use of Dual Frequency Identification Sonar to Determine Adult Chinook Salmon (Oncorhynchus tshawytscha) Escapement in the Secesh River, Idaho ; Annual Report, January 2008 – December 2008.  

SciTech Connect

Chinook salmon in the Snake River basin were listed as threatened under the Endangered Species Act in 1992 (NMFS 1992). The Secesh River represents the only stream in the Snake River basin where natural origin (wild) salmon escapement monitoring occurs at the population level, absent a supplementation program. As such the Secesh River has been identified as a long term salmon escapement and productivity monitoring site by the Nez Perce Tribe Department of Fisheries Resources Management. Salmon managers will use this data for effective population management and evaluation of the effect of conservation actions on a natural origin salmon population. The Secesh River also acts as a reference stream for supplementation program comparison. Dual frequency identification sonar (DIDSON) was used to determine adult spring and summer Chinook salmon escapement in the Secesh River in 2008. DIDSON technology was selected because it provided a non-invasive method for escapement monitoring that avoided listed species trapping and handling incidental mortality, and fish impedance related concerns. The DIDSON monitoring site was operated continuously from June 13 to September 14. The first salmon passage was observed on July 3. DIDSON site total estimated salmon escapement, natural and hatchery fish, was 888 fish {+-} 65 fish (95% confidence interval). Coefficient of variation associated with the escapement estimate was 3.7%. The DIDSON unit was operational 98.1% of the salmon migration period. Adult salmon migration timing in the Secesh River occurred over 74 days from July 3 to September 14, with 5,262 total fish passages observed. The spawning migration had 10%, median, and 90% passage dates of July 8, July 16, and August 12, respectively. The maximum number of net upstream migrating salmon was above the DIDSON monitoring site on August 27. Validation monitoring of DIDSON target counts with underwater optical cameras occurred for species identification. A total of 860 optical camera identified salmon passage observations were identical to DIDSON target counts. However, optical cameras identified eight jack salmon (3 upstream, 5 downstream) less than 55 cm in length that DIDSON did not count as salmon because of the length criteria employed ({ge} 55 cm). Precision of the DIDSON technology was evaluated by comparing estimated net upstream salmon escapement and associated 95% confidence intervals between two DIDSON sonar units operated over a five day period. The DIDSON 1 salmon escapement was 145.7 fish ({+-} 2.3), and the DIDSON 2 escapement estimate was 150.5 fish ({+-} 5). The overlap in the 95% confidence intervals suggested that the two escapement estimates were not significantly different from each other. Known length salmon carcass trials were conducted in 2008 to examine the accuracy of manually measured lengths, obtained using DIDSON software, on high frequency files at a 5 m window length. Linear regression demonstrated a highly significant relationship between known lengths and manually measured salmon carcass lengths (p < 0.0001). A positive bias in manual length measurement of 6.8% to 8% existed among the two observers in the analysis. Total Secesh River salmon escapement (natural origin and hatchery) in 2008 was 912 fish. Natural origin salmon escapement in the entire Secesh River drainage was 847 fish. The estimated natural origin spawner abundance was 836 fish. Salmon spawner abundance in 2008 increased by three fold compared to 2007 abundance levels. The 10 year geometric mean natural origin spawner abundance was 538 salmon and was below the recommended viable population threshold level established by the ICTRT (2007). One additional Snake River basin salmon population was assessed for comparison of natural origin salmon spawner abundance. The Johnson Creek/EFSF Salmon River population had a 10 year geometric mean natural origin spawner abundance of 254 salmon. Salmon spawner abundance levels in both streams were below viable population thresholds. DIDSON technology has been used in the Secesh River to determine salmo

Kucera, Paul A. [Nez Perce Tribe Department of Fisheries Resources Management

2009-06-26

240

From Snow to Rain: Assessing streamflow sensitivity to changes in climate using a hydrologic model for the Salmon River Basin, Idaho  

NASA Astrophysics Data System (ADS)

A study of the influences of climate changes in water resource in Salmon River Basin (SRB) is presented. The Salmon River starts in high elevation, mountainous, forest headwaters as an unimpaired river system. Accelerated Climate models for the next 100 years in western North America consistently predict progressive increase in temperature. This change in temperature in mountainous environments will drive snowline upward and ultimately influence the timing and magnitude of streamflow. In this study we explore the influences of climate changes on water resource in the unimpacted Salmon River Basin (SRB). The SRB starts in high elevation, snow-dominated headwaters and flows across a steep elevation gradient to a low elevation, rain-dominated region near its confluence with the Snake River. To explore the effect of changes in climate on a basin with variable precipitation phases, we employ a large scale, long term distributed hydrological model, (the Variable Infiltration Capacity (VIC) model) to simulate SRB streamflow and generate a downscaled climate output. Simulation was performed on 1/16 degree spatial resolution at daily timesteps over a 30-yr period. Model outputs reveal how streamflows within the SRB behave under three different climate scenarios: 1) the current meteorological condition; 2) temperature increase; and 3) precipitation decrease. The distributed model allows us to extract hydrographs along the entire length of the mainstem, thus evaluating the spatial and temporal distribution of tributary contributions to the Salmon River. These results help map out how the topographic character of a watershed determines the sensitivity of both mainstem and tributary flows to changes in precipitation phase. These results improve streamflow forcasting for both fisheries and hydroelectric applications.

Tang, C.; Crosby, B. T.; Wheaton, J. M.

2009-12-01

241

Chinook Salmon Adult Abundance Monitoring; Hydroacoustic Assessment of Chinook Salmon Escapement to the Secesh River, Idaho, 2002-2004 Final Report.  

SciTech Connect

Accurate determination of adult salmon spawner abundance is key to the assessment of recovery actions for wild Snake River spring/summer Chinook salmon (Onchorynchus tshawytscha), a species listed as 'threatened' under the Endangered Species Act (ESA). As part of the Bonneville Power Administration Fish and Wildlife Program, the Nez Perce Tribe operates an experimental project in the South Fork of the Salmon River subbasin. The project has involved noninvasive monitoring of Chinook salmon escapement on the Secesh River between 1997 and 2000 and on Lake Creek since 1998. The overall goal of this project is to accurately estimate adult Chinook salmon spawning escapement numbers to the Secesh River and Lake Creek. Using time-lapse underwater video technology in conjunction with their fish counting stations, Nez Perce researchers have successfully collected information on adult Chinook salmon spawner abundance, run timing, and fish-per-redd numbers on Lake Creek since 1998. However, the larger stream environment in the Secesh River prevented successful implementation of the underwater video technique to enumerate adult Chinook salmon abundance. High stream discharge and debris loads in the Secesh caused failure of the temporary fish counting station, preventing coverage of the early migrating portion of the spawning run. Accurate adult abundance information could not be obtained on the Secesh with the underwater video method. Consequently, the Nez Perce Tribe now is evaluating advanced technologies and methodologies for measuring adult Chinook salmon abundance in the Secesh River. In 2003, the use of an acoustic camera for assessing spawner escapement was examined. Pacific Northwest National Laboratory, in a collaborative arrangement with the Nez Perce Tribe, provided the technical expertise to implement the acoustic camera component of the counting station on the Secesh River. This report documents the first year of a proposed three-year study to determine the efficacy of using an acoustic camera to count adult migrant Chinook salmon as they make their way to the spawning grounds on the Secesh River and Lake Creek. A phased approach to applying the acoustic camera was proposed, starting with testing and evaluation in spring 2003, followed by a full implementation in 2004 and 2005. The goal of this effort is to better assess the early run components when water clarity and night visibility preclude the use of optical techniques. A single acoustic camera was used to test the technology for enumerating adult salmon passage at the Secesh River. The acoustic camera was deployed on the Secesh at a site engineered with an artificial substrate to control the river bottom morphometry and the passage channel. The primary goal of the analysis for this first year of deployment was to validate counts of migrant salmon. The validation plan involved covering the area with optical video cameras so that both optical and acoustic camera images of the same viewing region could be acquired simultaneously. A secondary test was contrived after the fish passage was complete using a controlled setting at the Pacific Northwest National Laboratory in Richland, Washington, in which we tested the detectability as a function of turbidity levels. Optical and acoustic camera multiplexed video recordings of adult Chinook salmon were made at the Secesh River fish counting station from August 20 through August 29, 2003. The acoustic camera performed as well as or better than the optical camera at detecting adult Chinook salmon over the 10-day test period. However, the acoustic camera was not perfect; the data reflected adult Chinook salmon detections made by the optical camera that were missed by the acoustic camera. The conditions for counting using the optical camera were near ideal, with shallow clear water and good light penetration. The relative performance of the acoustic camera is expected to be even better than the optical camera in early spring when water clarity and light penetration are limited. Results of the laboratory tests at the Pacific North

Johnson, R.; McKinstry, C.; Mueller, R.

2004-01-01

242

Chinook Salmon Adult Abundance Monitoring; Hydroacoustic Assessment of Chinook Salmon Escapement to the Secesh River, Idaho, 2002-2004 Final Report  

Microsoft Academic Search

Accurate determination of adult salmon spawner abundance is key to the assessment of recovery actions for wild Snake River spring\\/summer Chinook salmon (Onchorynchus tshawytscha), a species listed as 'threatened' under the Endangered Species Act (ESA). As part of the Bonneville Power Administration Fish and Wildlife Program, the Nez Perce Tribe operates an experimental project in the South Fork of the

R. Johnson; C. McKinstry; R. Mueller

2004-01-01

243

Geology, Geochemistry, and Mineral Resources of the Lower Part of the Middle Fork Boise River Drainage Basin, Boise and Elmore Counties, Idaho.  

National Technical Information Service (NTIS)

Geologic mapping of the western part of the Hailey 1DGOE2DG quadrangle an geochemical sampling of sediments from various streams that drain into the Middle Fork of the Boise River indicate that three areas in the drainage basin contain anomalous amounts o...

C. L. Smith T. H. Kiilsgaard

2010-01-01

244

2. SNAKE RIVER VALLEY IRRIGATION DISTRICT DAM, PHOTOGRAPHIC COPY OF ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. SNAKE RIVER VALLEY IRRIGATION DISTRICT DAM, PHOTOGRAPHIC COPY OF DRAWING, PLAN, SHEET 5 OF 5, 1924 (on file at the Idaho State Office of Water Resources, Boise, Idaho) - Snake River Valley Irrigation District, East Side of Snake River (River Mile 796), Shelley, Bingham County, ID

245

Chemical composition of selected core samples, Idaho National Engineering Laboratory, Idaho  

SciTech Connect

This report presents chemical compositions determined from 84 subsamples and 5 quality-assurance split subsamples of basalt core from the eastern Snake River Plain. The 84 subsamples were collected at selected depths from 5 coreholes located on the Idaho National Engineering Laboratory, Idaho. This report was jointly prepared by Lockheed Idaho Technologies Company and the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, Idaho Operations Office. Ten major elements and as many as 32 trace elements were determined for each subsample either by wavelength dispersive X-ray fluorescence spectrometry, inductively coupled plasma mass spectrometry, or by both methods. Descriptive statistics for each element were calculated and tabulated by analytical method for each corehole.

Knobel, L.L.; Cecil, L.D.; Wood, T.R.

1995-11-01

246

Activities of the National Water-Quality Assessment Program in the upper Snake River Basin, Idaho and western Wyoming, 1991-2001  

USGS Publications Warehouse

In 1991, the U.S. Geological Survey (USGS) began a full-scale National Water-Quality Assessment (NAWQA) Program. The long-term goals of the NAWQA Program are to describe the status and trends in the water quality of a large part of the Nation's rivers and aquifers and to improve understanding of the primary natural and human factors that affect water-quality conditions. In meeting these goals, the program will produce water-quality, ecological, and geographic information that will be useful to policy makers and managers at the national, State, and local levels. A major component of the program is study-unit investigations, upon which national-level assessment activities are based. The program's 60 study-unit investigations are associated with principal river basins and aquifer systems throughout the Nation. Study units encompass areas from 1,200 to more than 65,000 mi2 (square miles) and incorporate about 60 to 70 percent of the Nation's water use and population served by public water supply. In 1991, the upper Snake River Basin was among the first 20 NAWQA study units selected for implementation. From 1991 to 1995, a high-intensity data-collection phase of the upper Snake River Basin study unit (fig. 1) was implemented and completed. Components of this phase are described in a report by Gilliom and others (1995). In 1997, a low-intensity phase of data collection began, and work continued on data analysis, report writing, and data documentation and archiving activities that began in 1996. Principal data-collection activities during the low-intensity phase will include monitoring of surface-water and ground-water quality, assessment of aquatic biological conditions, and continued compilation of environmental setting information.

Low, Walton H.

1997-01-01

247

Estimates of gains and losses for reservoirs on the Snake River from Blackfoot to Milner, Idaho, for selected periods, 1912 to 1983  

USGS Publications Warehouse

Croplands in the semiarid central part of the Snake River Plain are dependent on the availability of irrigation water, most of which comes from the Snake River. Allocation of irrigation water from the river requires that gains and losses be determined for American Falls Reservoir, Lake Walcott, and Milner Lake. From 1912 to 1983, average ungaged inflow to American Falls Reservoir , determined from monthly water budgets, was 2,690 cu ft/sec. About 94% of this inflow was spring discharge and groundwater seepage; the remainder was from small tributaries and irrigation-return flow. Ungaged inflow estimated from water budgets for various periods correlated favorably with measured discharge of two springs and water levels in two wells. Discharge of Spring Creek was a better indicator of ungaged inflow than groundwater levels. Therefore, correlation with Spring Creek discharge was used in estimating ungaged inflow to American Falls Reservoir in 1983. Daily water budget calculations of ungaged inflow to American Falls Reservoir are less variable when storage changes are determined by using three stage-recording stations rather than one. Water budgets do not indicate large amounts of leakage from American Falls Reservoir, but small amounts of leakage are indicated because flow in downstream springs increased about 25% after reservoir storage began in 1926. Water budgets for Lake Walcott and Milner Lake show average annual net gains (1951-83) to Lake Walcott and Milner Lake of 245 and 290 cu ft/sec. These amounts are verified by monthly water budgets when discharge in the Snake River is low, and measured and estimated sources of inflow. Gains and losses estimated from daily water budgets are variable, owing to inadequate determination of (1) changes in reservoir storage, (2) streamflow, (3) lake surface precipitation, and (4) lake surface evaporation. Backwater effects are accounted for in the process used to determine storage in Milner Lake. (Author 's abstract)

Kjelstrom, L. C.

1988-01-01

248

Assessment of nutrients, suspended sediment, and pesticides in surface water of the upper Snake River basin, Idaho and western Wyoming, water years 1991-95  

USGS Publications Warehouse

A water-quality investigation of the upper Snake River Basin began in 1991 as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Sampling and analysis focused on nutri-ents, suspended sediments, and pesticides. Concentrations of nutrients and suspended sediment in the upper Snake River Basin, in general, increased towards the outlet of the basin. Median concentrations of dissolved nitrite plus nitrate at 19sites ranged from less than 0.05 to 1.60 milligrams per liter; total phosphorus as phosphorus, less than 0.01 to 0.11 milligrams per liter; and suspended sediment, 4 to 72 milligrams per liter. Significantdifferences (p<0.05) in nutrient and suspended sediment concentrations were noted among groups of sites categorized by the quantity of agri-cultural land in their upstream drainage basins. Concentrations of dissolved nitrite plus nitrate were largest during the nonirrigation season, October through March. Concentrations of total phosphorus and suspended sediment, in general, were largest during high streamflow, April through June. The pesticides EPTC (eptam), atrazine, desethylatrazine, metolachlor (dual), and alachlor (lasso) were the most commonly detected in theupper Snake River Basin and accounted for about 75 percent of all pesticide detections. All pesticides detected were at concentrations less than 1 microgram per liter and below maximum contaminant levels established by the U.S. Environmental Protection Agency. The largestnumber and concentrations of pesticides were detected in May and June following early growing season applications.

Clark, G. M.

1997-01-01

249

Geohydrology and simulation of flow and water levels in the aquifer system in the Mud Lake area of the eastern Snake River plain, eastern Idaho  

USGS Publications Warehouse

Surface and ground water is used to irrigate crops and maintain lakes on wildlife refuges in the 2,200-square-mile Mud Lake study area of eastern Idaho. Ground-water withdrawals increased from about 240,000 acre-feet in 1983 to about 370,000 acre-feet in 1990. Of the 660,000 acre-feet total estimated recharge from precipitation and irrigation in the study area in 1980, half was in an area where, according to an independent study, recharge was predicted to decline by 95,000 acre-feet. Water managers need the ability to evaluate effects of water-use changes on the future supply of surface and ground water. A five-layer, three-dimensional, finite-difference, numerical ground-water flow model was calibrated by trial and error to assumed 1980 steady-state hydrologic conditions to obtain a better understanding of the geohydrology and provide a tool to evaluate water-use alternatives. Water-level gradients simulated by the model were similar to gradients measured in 1980. Simulated underflow across model boundaries for 1980 was 932,000 acre-feet. Simulated losses from and gains to most streams and lakes were within 2 percent of values calculated using streamflow measurements and estimates. Simulated discharge from flowing wells matched measurements for 1980. An attempt to calibrate the numerical model to transient hydrologic conditions in monthly increments from 1981 to 1990 was discontinued because of data limitations.

Spinazola, J. M.

1993-01-01

250

A Long-Term Comparison of Redband Trout Distribution, Density, and Size Structure in Southwestern Idaho  

Microsoft Academic Search

During 1993–2003, we reexamined the density and size structure of populations of Columbia River redband trout Oncorhynchus mykiss gairdneri at 43 sites in sagebrush desert basins of southwestern Idaho. Trout density had originally been sampled at these sites during 1977–1982. Populations were sampled in four major drainages of the Snake River basin: Bruneau River, Jordan Creek, Owyhee River, and Snake

Bruce W. Zoellick; Dale B. Allen; Brian J. Flatter

2005-01-01

251

Concentrations and loads of cadmium, zinc, and lead in the main stem Coeur d'Alene River, Idaho—March, June, September, and October 1999  

USGS Publications Warehouse

of the effects of different river discharges and lake levels of Coeur d'Alene Lake on the transport of cadmium, zinc, and lead within the main stem Coeur d'Alene River. In particular, water-quality data and loads during a broad range of hydrologic conditions were examined to determine if the river channel, flood plain, and associated ground water along the main stem Coeur d'Alene River acted as sources or sinks of trace elements. Water-quality samples were collected at six riverine stations and one lake station along a 35-mile reach during March, June, September, and October of 1999. Samples were analyzed for whole-water recoverable, filtered (0.45 micrometer), and dissolved (0.01 micrometer) concentrations of cadmium, zinc, and lead. Concentrations and loads of cadmium and zinc measured during the four sampling trips were predominately in the filtered and dissolved fraction ,rather than particulate. The smallest concentrations were measured during the June sampling trip when flows were high and snowmelt runoff diluted riverine concentrations. Conversely, the largest concentrations were measured during the latter two sampling trips when flows were low because a larger proportion of the river's discharge was contributed by ground-water inflow. During each sampling trip, cadmium and zinc concentrations generally decreased in a downstream directioeven as discharge increased in a downstream direction. Spatial and temporal trends exhibited by lead concentrations and loads during the four sampling trips were different from those of cadmium and zinc because of the propensity for lead to adsorb to sediment particles. Whole-water recoverable lead concentrations and loads during the four sampling trips were predominantly in the particulate fraction, with filtered and dissolved concentrations and loads composing a much smaller proportion of the recoverable fraction compared to cadmium and zinc. Filtered lead concentrations generally increased at a faster rate in the downstream direction than dissolved lead concentrations; thus, colloidallead either was being formed by complexation reactions or being added by sediment erosion in the downstream direction.

Woods, P. F.

2001-01-01

252

Evaluation of Quality-Assurance\\/Quality-Control Data Collected by the U.S. Geological Survey from Wells and Springs between the Southern Boundary of the Idaho National Engineering and Environmental Laboratory and the Hagerman Area, Idaho, 1989 through 1995  

Microsoft Academic Search

The U.S. Geological (USGS) and the Idaho Department of Water Resources, in cooperation with the U.S. Department of Energy, collected and analyzed water samples to monitor the water quality of the Snake River Plain aquifer from the southern boundary of the Idaho National Engineering and Environmental Laboratory to the Hagerman area, Idaho. Concurrently, replicate samples and blank samples were collected

L. M. Williams; R. C. Bartholomay; L. J. Campbell

1998-01-01

253

Analysis of data on nutrients and organic compounds in ground water in the upper Snake River basin, Idaho and western Wyoming, 1980-91  

USGS Publications Warehouse

Nutrient and organic compound data from the U.S. Geological Survey and the U.S. Environmental Protection Agency STORET data bases provided information for development of a preliminary conceptual model of spatial and temporal ground- water quality in the upper Snake River Basin. Water from domestic wells contained the highest median nitrate (nitrite plus nitrate as nitrogen) concen- trations; water from industrial and public-supply wells contained the lowest. Nitrate concentrations decreased with increasing well depth, increasing depth to water (unsaturated thickness), and increasing depth below water table (saturated thickness). Nitrate concentrations were statistically higher in areas of irrigated agriculture than in areas of dryland agriculture and rangeland. Concentrations increased in areas north of Burley and northwest of Pocatello between 1980 and 1990. The following organic compounds were detected in ground water in the upper Snake River Basin: cyanazine, 2,4-D, DDT, dacthal, diazinon, dichloropropane, dieldrin, malathion, and metribuzin. Of 211 wells sampled for organic compounds, water from 17 contained detectable concentrations.

Rupert, M. G.

1994-01-01

254

Chemical and radiochemical constituents in water from wells in the vicinity of the Naval Reactors Facility, Idaho National Engineering Laboratory, Idaho, 1994--95  

Microsoft Academic Search

The US Geological Survey, in response to a request from the US Department of Energy`s Pittsburgh Naval Reactors Office, Idaho Branch Office, sampled water from 14 wells during 1994--95 as part of a long-term project to monitor water quality of the Snake River Plain aquifer in the vicinity of the Naval Reactors Facility, Idaho National Engineering Laboratory, Idaho. Water samples

R. C. Bartholomay; L. L. Knobel; B. J. Tucker

1997-01-01

255

Tectonic evolution of the Priest River complex, northern Idaho and Washington: A reappraisal of the Newport fault with new insights on metamorphic core complex formation  

NASA Astrophysics Data System (ADS)

New geologic mapping, 40Ar/39Ar thermochronometry, and geobarometry in the Middle Eocene Priest River metamorphic core complex provide the basis for unraveling the role of en echelon fault systems in core complex formation and for determining the scale of crustal fragments that form during continental extension. Four faults occur in the Priest River complex. The east verging Purcell Trench fault zone on the eastern side consists of two distinct en echelon fault segments separated by an unfaulted homocline. The U-shaped Newport fault system on the northwestern side is a conjugate normal fault set. The west verging eastern Newport fault terminates within the Silver Point Wrencoe pluton, which was intruded syntectonically into the fault zone. The east verging western Newport fault merges with the east verging Spokane dome mylonite zone in the underlying infrastructure. New geobarometric data show that this midcrustal shear zone, which evidently forms part of the regional basal décollement of the Cordilleran fold and thrust belt, also records significant Eocene extensional shearing. Rocks that formed beneath the mylonite zone at a depth of 30-35 km are juxtaposed against rocks that formed at a depth of 10 km above the zone. Eocene 40Ar/39Ar chrontours in the southern part of the infrastructure record progressive exhumation and quenching that becomes younger eastward. In the northern fragment of the infrastructure, alternating domains of progressive westward exhumation/quenching and progressive eastward exhumation/quenching occur beneath the eastern Newport fault and the northern Purcell Trench fault, respectively. These relationships form the basis for a new model of the evolution of the Priest River complex. The southern part of the infrastructure was exhumed by a major east verging detachment system comprising the western Newport fault and the reactivated eastern part of the Spokane dome mylonite zone, into which the western Newport fault merges. This master detachment fault, which roots in the southern Purcell Trench on the east side of the core complex, plunges beneath the northern part of the infrastructure (the Selkirk Crest block). Below the detachment, the infrastructure appears to be intact; above the detachment, the crust extended along a set of relaying conjugate detachment faults. These faults are the eastern Newport fault and the north and south Purcell Trench faults. Kinematic analysis shows that the Selkirk Crest block is a crustal-scale extensional horse that was stranded as continued extension moved the underlying metamorphic infrastructure out from beneath it and toward the west along the master detachment. This study shows that large tracts of midcrustal rocks can be translated and stranded as allochthonous fragments during continental crustal extension.

Doughty, P. Ted; Price, Raymond A.

1999-06-01

256

Idaho field experiment 1981. Volume 2: measurement data  

Microsoft Academic Search

The 1981 Idaho Field Experiment was conducted in southeastern Idaho over the upper Snake River Plain. Nine test-day case studies were conducted between July 15 and 30, 1981. Releases of SF gaseous tracer were made for 8-hour periods from 46m above ground. Tracer was sampled hourly, for 12 sequential hours, at about 100 locations within an area 24km square. Also,

G. E. Start; J. F. Sagendorf; G. R. Ackermann; J. H. Cate; N. F. Hukari; C. R. Dickson

1984-01-01

257

The Influence of ENSO and PDO on Idaho's Snowpack  

Microsoft Academic Search

Idaho's snowpacks build up in the winter and slowly release water into rivers and lakes throughout the spring and summer providing critical seasonal to multi-annual water storage. Initial results indicate El-Niño-Southern- Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO) influence the quantity and timing of snowmelt in all Idaho watersheds but the magnitude of these effects vary regionally. Twenty-five plus

M. L. Kunkel; J. L. Pierce

2006-01-01

258

Rivers  

NSDL National Science Digital Library

This site features pages to more than twenty NASA radar images of the world's major river systems. The image pages contain a brief description of the respective processes and setting, and are available for download. The images were created with the Spaceborne Imaging Radar-C and X-Band Synthetic Aperture Radar (SIR-C/X-SAR) as part of NASA's Mission to Planet Earth. The radars illuminate Earth with microwaves allowing detailed observations at any time, regardless of weather or sunlight conditions. The multi-frequency data will be used by the international scientific community to better understand the global environment and how it is changing.

Pavlovsky, Rich

259

College of Idaho Geothermal System, Caldwell, Idaho.  

National Technical Information Service (NTIS)

There appears to be a good potential for a 160 exp 0 F resource at the College of Idaho site. Both existing well data and recent geologic and hydrologic investigations suggest that such a temperature should be available at a depth of approximately 3500 fe...

K. Rafferty

1984-01-01

260

Fire protection review, Westinghouse Idaho Nuclear Company, Idaho Falls, Idaho  

SciTech Connect

A fire protection survey was conducted for the Department of Energy at the Westinghouse Idaho Nuclear Company, INC., Idaho Falls, Idaho, on April 24--27, April 30--May 4, June 4--8, and June 11--15, 1990. The purpose of the survey was to review the facility's fire protection program and to make recommendations according to the following criteria established by the Department of Energy: (1) Recommendations which would be made as the result of an improved risk or Highly Protected Risk (HPR) fire inspection of an industrial insured facility. (2) Identification of areas which are presently not protected or are inadequately protected where provision of automatic protection would reduce a fire or explosion loss to less than $1 million. (3) Identification of areas where loss potentials exceed $50 million assuming a failure of automatic protection systems and subsequent reliance only on separation and fire walls. (4) Evaluation of adequacy of compliance with recommendations made in prior surveys. Findings and recommendations in this report reflect to some degree the relative importance of the operation and the time to restore it to useful condition in the event that a loss were to occur.

Dobson, P.H.

1990-10-01

261

Idaho Industrial Survey. 1973.  

National Technical Information Service (NTIS)

Results of a 1973 survey to determine the occupational health hazards to which Idaho workers are exposed are reported as the basis for a comprehensive occupational health program. The survey of manufacturing plants and selected service businesses was cond...

1973-01-01

262

Idaho's Forests, 1991.  

National Technical Information Service (NTIS)

Presents highlights of Idaho's forest resources as of 1991. Describes the extent, condition, and location of the State's forests, focusing on timberland. Includes statistical tables providing data by area, ownership, forest type, species, volume, mortalit...

M. J. Brown D. C. Chojnacky

1996-01-01

263

Raft River Geoscience Case Study.  

National Technical Information Service (NTIS)

The Raft River Geothermal Site has been evaluated over the past eight years by the United States Geological Survey and the Idaho National Engineering Laboratory as a moderate-temperature geothermal resource. The geoscience data gathered in the drilling an...

M. R. Dolenc L. C. Hull S. A. Mizell B. F. Russell P. A. Skiba

1981-01-01

264

Idaho Field Experiment 1981. Volume 3. Comparison of trajectories, tracer concentration patterns and MESODIF model calculations  

Microsoft Academic Search

The 1981 Idaho Field Experiment was conducted in southeast Idaho over the Upper Snake River Plain. Nine test-day case studies were conducted between July 15 and 30, 1981. Releases of SF gaseous tracer were made for 8-hour periods from 46 m above ground. Tracer was sampled hourly, for 12 sequential hours, at about 100 locations within an area 24 km

G. E. Start; J. H. Cate; J. F. Sagendorf; G. R. Ackermann; C. R. Dickson; N. H. Nukari; L. G. Thorngren

1985-01-01

265

Probability of detecting atrazine/desethyl-atrazine and elevated concentrations of nitrate (NO2+NO3-N) in ground water in the Idaho part of the upper Snake River basin  

USGS Publications Warehouse

Draft Federal regulations may require that each State develop a State Pesticide Management Plan for the herbicides atrazine, alachlor, cyanazine, metolachlor, and simazine. This study developed maps that the Idaho State Department of Agriculture might use to predict the probability of detecting atrazine and desethyl-atrazine (a breakdown product of atrazine) in ground water in the Idaho part of the upper Snake River Basin. These maps can be incorporated in the State Pesticide Management Plan and help provide a sound hydrogeologic basis for atrazine management in the study area. Maps showing the probability of detecting atrazine/desethyl-atrazine in ground water were developed as follows: (1) Ground-water monitoring data were overlaid with hydrogeologic and anthropogenic data using a geographic information system to produce a data set in which each well had corresponding data on atrazine use, depth to ground water, geology, land use, precipitation, soils, and well depth. These data then were downloaded to a statistical software package for analysis by logistic regression. (2) Individual (univariate) relations between atrazine/desethyl-atrazine in ground water and atrazine use, depth to ground water, geology, land use, precipitation, soils, and well depth data were evaluated to identify those independent variables significantly related to atrazine/ desethyl-atrazine detections. (3) Several preliminary multivariate models with various combinations of independent variables were constructed. (4) The multivariate models which best predicted the presence of atrazine/desethyl-atrazine in ground water were selected. (5) The multivariate models were entered into the geographic information system and the probability maps were constructed. Two models which best predicted the presence of atrazine/desethyl-atrazine in ground water were selected; one with and one without atrazine use. Correlations of the predicted probabilities of atrazine/desethyl-atrazine in ground water with the percent of actual detections were good; r-squared values were 0.91 and 0.96, respectively. Models were verified using a second set of groundwater quality data. Verification showed that wells with water containing atrazine/desethyl-atrazine had significantly higher probability ratings than wells with water containing no atrazine/desethylatrazine (p <0.002). Logistic regression also was used to develop a preliminary model to predict the probability of nitrite plus nitrate as nitrogen concentrations greater than background levels of 2 milligrams per liter. A direct comparison between the atrazine/ desethyl-atrazine and nitrite plus nitrate as nitrogen probability maps was possible because the same ground-water monitoring, hydrogeologic, and anthropogenic data were used to develop both maps. Land use, precipitation, soil hydrologic group, and well depth were significantly related with atrazine/desethyl-atrazine detections. Depth to water, land use, and soil drainage were signifi- cantly related with elevated nitrite plus nitrate as nitrogen concentrations. The differences between atrazine/desethyl-atrazine and nitrite plus nitrate as nitrogen relations were attributed to differences in chemical behavior of these compounds in the environment and possibly to differences in the extent of use and rates of their application.

Rupert, Michael G.

1998-01-01

266

Redband Trout ('Oncorhynchus mykiss gairdneri') Population and Stream Habitat Surveys in Southern Owyhee County, Idaho.  

National Technical Information Service (NTIS)

Seventeen stream segments were sampled by electrofishing for redband trout in stream drainages in southern Owyhee County, Idaho. Stream surveys were conducted on the South Fork Owyhee, Little Owyhee, Owyhee, West Fork Bruneau, and Jarbridge rivers and Mar...

D. B. Allen B. J. Flatter K. Fite

1997-01-01

267

Teton Dam flood of June 1976, Idaho Falls North quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification of these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Idaho Falls North quadrangle. (Woodard-USGS)

Ray, H. A.; Matthai, Howard Frederick

1976-01-01

268

Teton Dam flood of June 1976, Idaho Falls South quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification of these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Idaho Falls South quadrangle. (Woodard-USGS)

Ray, H. A.; Matthai, Howard Frederick

1976-01-01

269

78 FR 23522 - Idaho Roadless Rule  

Federal Register 2010, 2011, 2012, 2013

...Idaho Roadless Areas on the Idaho Panhandle National Forests to reflect lands acquired...shown as only located on the Idaho Panhandle National Forest instead of split between...Forest Idaho roadless area Number...

2013-04-19

270

Idaho: A Portrait  

NSDL National Science Digital Library

Divided into five sections, this site, the companion to Idaho Public Television's show by the same name, is the place for readers to go to learn all about the state: its landscape, history, recreation, and more. The first section, About Idaho, is divided into three subsections, Geology, People (which features interviews with a number of residents), and History. Those who want to find out more about a particular region can click the map in Tour the State to bring up a page of information. Idaho Adventures provides details on recreational activities (skiing, hunting, etc.) and Lewis and Clark's expedition, together with links to relevant sites. Four Photographers' Views offers a handful of breath-taking shots from each photographer, and the Resources section rounds out the site with downloadable wallpaper, a quiz, a list of related links, and more. RealPlayer clips are available throughout the site.

271

Riparian Lichens of Northern Idaho.  

National Technical Information Service (NTIS)

This study is a survey of riparian lichens including seventeen target species that lichenologists familiar with the area thought were rare in northern Idaho. Information presented here is based on data collected at 81 sites in the Idaho panhandle between ...

J. L. Hutchinson B. P. McCune

2001-01-01

272

WATER QUALITY STUDY OF THE ISLAND PARK WATERWAYS, IDAHO 1970  

EPA Science Inventory

This study was initiated to examine some chemical, physical, and bacteriological aspects of the waterways of the Island Park recreational area, Idaho (17040202) in an effort to initiate local water quality standards, to identify sources of river abuse, and where possible, to lear...

273

ROCK CREEK, IDAHO WATER QUALITY STATUS REPORT, 1970-1984  

EPA Science Inventory

The study was designed to determine the characteristics and amounts of industrial and municipal wastes discharged to Rock Creek, Idaho (17040212) and subsequently into the Snake River and to evaluate the effects of these wastes on the biota and water quality of Rock Creek. Indus...

274

Active Faulting in Idaho  

NSDL National Science Digital Library

This lesson introduces students to faulting from the Quaternary Period and the Holocene Epoch in the State of Idaho. They will examine a map showing the distribution of these faults and answer questions concerning groundwater circulation and earthquake potential, and determine which geologic province has the most neotectonically active faults (15,000 years or younger).

275

Idaho Safety Manual.  

ERIC Educational Resources Information Center

This manual is intended to help teachers, administrators, and local school boards develop and institute effective safety education as a part of all vocational instruction in the public schools of Idaho. This guide is organized in 13 sections that cover the following topics: introduction to safety education, legislation, levels of responsibility,…

Idaho State Dept. of Education, Boise. Div. of Vocational Education.

276

Idaho Steelhead Monitoring and Evaluation Studies : Annual Progress Report 2007.  

SciTech Connect

The goal of Idaho Steelhead Monitoring and Evaluation Studies is to collect monitoring data to evaluate wild and natural steelhead populations in the Clearwater and Salmon river drainages. During 2007, intensive population data were collected in Fish Creek (Lochsa River tributary) and Rapid River (Little Salmon River tributary); extensive data were collected in other selected spawning tributaries. Weirs were operated in Fish Creek and Rapid River to estimate adult escapement and to collect samples for age determination and genetic analysis. Snorkel surveys were conducted in Fish Creek, Rapid River, and Boulder Creek (Little Salmon River tributary) to estimate parr density. Screw traps were operated in Fish Creek, Rapid River, Secesh River, and Big Creek to estimate juvenile emigrant abundance, to tag fish for survival estimation, and to collect samples for age determination and genetic analysis. The estimated wild adult steelhead escapement in Fish Creek was 81 fish and in Rapid River was 32 fish. We estimate that juvenile emigration was 24,127 fish from Fish Creek; 5,632 fish from Rapid River; and 43,674 fish from Big Creek. The Secesh trap was pulled for an extended period due to wildfires, so we did not estimate emigrant abundance for that location. In cooperation with Idaho Supplementation Studies, trap tenders PIT tagged 25,618 steelhead juveniles at 18 screw trap sites in the Clearwater and Salmon river drainages. To estimate age composition, 143 adult steelhead and 5,082 juvenile steelhead scale samples were collected. At the time of this report, 114 adult and 1,642 juvenile samples have been aged. Project personnel collected genetic samples from 122 adults and 839 juveniles. We sent 678 genetic samples to the IDFG Eagle Fish Genetics Laboratory for analysis. Water temperature was recorded at 37 locations in the Clearwater and Salmon river drainages.

Copeland, Timothy; Putnam, Scott

2008-12-01

277

Rapid River Hatchery - Spring Chinook, Final Report  

SciTech Connect

This report presents the findings of the independent audit of the Rapid River Hatchery (Spring Chinook). The hatchery is located in the lower Snake River basin near Riggins Idaho. The hatchery is used for adult collection, egg incubation, and rearing of spring chinook. The audit was conducted in April 1996 as part of a two-year effort that will include 67 hatcheries and satellite facilities located on the Columbia and Snake River system in Idaho, Oregon, and Washington. The hatchery operating agencies include the US Fish and Wildlife Service, Idaho Department of Fish and Game, Oregon Department of Fish and Wildlife, and Washington Department of Fish and Wildlife.

Watson, M.

1996-05-01

278

Kootenai River Ecosystem: Finding of No Significant Impact (FONSI).  

National Technical Information Service (NTIS)

Bonneville Power Administration (BPA) is proposing to fund the Kootenai River Ecosystem Project. With this funding the Kootenai Tribe of Idaho (KTOI) and Idaho Fish and Game (IDFG) would add liquid nitrogen and phosphorus to the Kootenai River from late J...

2005-01-01

279

Idaho Explosives Detection System  

SciTech Connect

The Idaho Explosives Detection System was developed at the Idaho National Laboratory (INL) to respond to threats imposed by delivery trucks potentially carrying explosives into military bases. A full-scale prototype system has been built and is currently undergoing testing. The system consists of two racks, one on each side of a subject vehicle. Each rack includes a neutron generator and an array of NaI detectors. The two neutron generators are pulsed and synchronized. A laptop computer controls the entire system. The control software is easily operable by minimally trained staff. The system was developed to detect explosives in a medium size truck within a 5-min measurement time. System performance was successfully demonstrated with explosives at the INL in June 2004 and at Andrews Air Force Base in July 2004.

Edward L. Reber; Larry G. Blackwood; Andrew J. Edwards; J. Keith Jewell; Kenneth W. Rohde; Edward H. Seabury; Jeffery B. Klinger

2005-12-01

280

Idaho Explosives Detection System  

SciTech Connect

The Idaho Explosives Detection System (IEDS) was developed at the Idaho National Laboratory (INL) to respond to threats imposed by delivery trucks carrying explosives into military bases. A full-scale prototype system has been built and is currently undergoing testing. The system consists of two racks, one on each side of a subject vehicle. Each rack includes a neutron generator and an array of NaI detectors. The two neutron generators are pulsed and synchronized. A laptop computer controls the entire system. The control software is easily operable by minimally trained staff. The system was developed to detect explosives in a medium size truck within a 5-minute measurement time. System performance was successfully demonstrated with explosives at the INL in June 2004 and at Andrews Air Force Base in July 2004.

Edward L. Reber; J. Keith Jewell; Larry G. Blackwood; Andrew J. Edwards; Kenneth W. Rohde; Edward H. Seabury

2004-10-01

281

A speleothem record of climate variability over the last millennium in the northern Wasatch Mountains, southeast Idaho  

Microsoft Academic Search

A new speleothem isotope record from Minnetonka Cave, southeast Idaho, offers continuous decadal-resolution climate history over the last 800 years. The cave is located in the Bear River Range, the northernmost extension of the Wasatch Mountains, at an elevation of approximately 2400 meters. The Bear River Range is a primary hydrologic recharge area for the Bear River, the largest contributor

Z. Lundeen; A. Brunelle; S. J. Burns; Y. Asmerom; V. Polyak

2009-01-01

282

Adult Chinook Salmon Abundance Monitoring in Lake Creek, Idaho, Annual Report 2001  

Microsoft Academic Search

Underwater time-lapse video technology has been used to monitor adult spring and summer chinook salmon (Oncorhynchus tshawytscha) escapement into the Secesh River and Lake Creek, Idaho, since 1998. Underwater time- lapse videography is a passive methodology that does not trap or handle this Endangered Species Act listed species. Secesh River chinook salmon represent a wild spawning aggregate that has not

Faurot

2002-01-01

283

Chinook Salmon Adult Abundance Monitoring in Lake Creek, Idaho, 2002 Annual Report  

Microsoft Academic Search

Underwater time- lapse video technology has been used to monitor adult spring and summer chinook salmon (Oncorhynchus tshawytscha) escapement into the Secesh River and Lake Creek, Idaho, since 1998. Underwater time-lapse videography is a passive methodology that does not trap or handle this Endangered Species Act listed species. Secesh River chinook salmon represent a wild spawning aggregate that has not

Dave Faurot; Paul Kucera

2003-01-01

284

Evaluation and Monitoring of Idaho Habitat Enhancement and Anadromous Fish Natural Production : Annual Report 1986  

Microsoft Academic Search

The Idaho Department of Fish and Game (IDFG) has been conducting an evaluation of existing and proposed habitat improvement projects for anadromous fish in the Clearwater River and Salmon River drainages over the last 3 years. Projects included in the evaluation are funded by or proposed for funding by the Bonneville Power Administration (BPA) under the Northwest Power Planning Act

Charles E. Petrosky; Terry B. Holubetz

1987-01-01

285

Modeling the effects of anadromous fish nitrogen on the carbon balance of riparian forests in central Idaho  

Microsoft Academic Search

Wild anadromous fish such as Pacific Chinook salmon (Oncorynchus tshawytscha) and steelhead (Oncorhyncus mykiss) were once abundant in Idaho, where they deposited their carcasses, rich in marine-derived nutrients (MDN), in the tributaries of the Columbia River. Anadromous fish are believed to have been a historically important nutrient source to the relatively nutrient-poor inland ecosystems of central Idaho, but no longer

A. J. Noble Stuen; K. Kavanagh; T. Wheeler

2010-01-01

286

Snake River Aquatic Species Recovery Plan.  

National Technical Information Service (NTIS)

On December 14, 1992, the Service added 5 aquatic snails from the Snake River in south central Idaho to the Federal list of Threatened and Endangered Wildlife (57 FR 59244). The Service determined the Idaho springsnail or Homedale Creek springsnail (Pyrgu...

1995-01-01

287

Idaho Higher Education: 1994 Fact Book.  

ERIC Educational Resources Information Center

|This fact book presents information about Idaho's public four-year college, Lewis-Clark State College, and the three universities: Boise State University, Idaho State University, and the University of Idaho. The book also provides selected data on vocational education and Idaho's two community colleges: North Idaho College and the College of…

Idaho State Board of Education, Boise.

288

RIPARIAN LICHENS OF NORTHERN IDAHO  

Microsoft Academic Search

Abstract ................ ................ ................ ............... 6 Introduction ................ ................ ................ ............ 6 Study Area ................ ................ ................ ............. 7 Methods ................ ................ ................ ............... 7 Results ................ ................ ................ ............... 12 Discussion ................ ................ ................ ............ 38 Collema curtisporumDeg el. in Riparian Forests of Northern Idaho ................ ...... 42 Abstract ................ ................ ................ .............. 43 Introduction ................ ................ ................ ...........

Jenifer L. Hutchinson; Bruce P. Mccune

289

Water resources in a changing climate: An Idaho research initiative  

NASA Astrophysics Data System (ADS)

A new initiative in Idaho funded by NSF EPSCoR will build state-wide research infrastructure to address how changes in future climatic conditions may impact water resources, as well as ecological and human systems. This project is supporting complementary field studies on a highly managed river system (Snake River Plain) and a relatively unmanaged system (Salmon River Basin). The project aims to fill a critical niche in hydrology by understanding the connection between surface flow and groundwater. Research capacity is being developed in three main areas: 1) hydroclimatology to improve modeling of water resources affected by climate change, 2) integration of hydrology and economic modeling in the Snake River basin, and 3) highly interdisciplinary research in the Salmon River basin involving climate, water, fire, insect infestations, geomorphology, and stream health. The project will also enhance outreach and educational experiences in climate change and water resources. A description of the new initiative and the activities associated with it will be given.

Walden, V. P.

2009-12-01

290

College of Idaho Geothermal System, Caldwell, Idaho  

SciTech Connect

There appears to be a good potential for a 160{sup 0}F resource at the College of Idaho site. Both existing well data and recent geologic and hydrologic investigations suggest that such a temperature should be available at a depth of approximately 3500 feet. Use of a temperature in the 160{sup 0}F range would not permit a 100% displacement of present natural gas use for space and domestic hot water. Because these systems were typically designed for 200{sup 0}F water or low pressure steam (approx. 220{sup 0}F), the performance of the existing equipment would be less than peak building requirements. However, even without major system modifications (the cost of which would be unreasonable), a geothermal system based on the above resource temperature would be capable of displacing about 78% of current natural gas consumption attributable to space and domestic hot water heating. The system outlined in the report would consist of a 3500 foot production well which would supply geothermal fluid to 12 major buildings on campus. Geothermal water would be passed through heat exchangers in each building. The heat exchangers would deliver heat to the existing heating loops. Most buildings would still require a small amount of input from the existing boiler during the coldest periods of the year. After having passed through the system, the geothermal water would then be injected into a disposal well. This is a key factor in the overall economics of the system. The assumption has been made that a full depth (3550 foot) injection well would be required. It is possible, though unclear at this point, that injection could be accomplished at a shallower depth into a similar aquifer. Since the injection well amounts to 24% of the total system capital cost, this is an important factor.

Rafferty, K.

1984-10-01

291

40 CFR 81.313 - Idaho.  

Code of Federal Regulations, 2010 CFR

...AQCR 61 Eastern Idaho Intrastate ...Attainment Bannock County Bear Lake County...AQCR 61 Eastern Idaho Intrastate ...Attainment Bannock County Bear Lake County...AQCR 61 Eastern Idaho Intrastate: Bannock County...

2009-07-01

292

Salmon River Habitat Enhancement, 1990 Annual Report.  

SciTech Connect

The annual report contains three individual subproject sections detailing tribal fisheries work completed during the summer and fall of 1990. Subproject I contains summaries of evaluation/monitoring efforts associated with the Bear Valley Creek, Idaho enhancement project. Subproject II contains an evaluation of the Yankee Fork of the Salmon River habitat enhancement project. Subproject III concerns the East Fork of the Salmon River, Idaho.

Rowe, Mike

1991-12-01

293

Idaho`s forests, 1991. Forest Service resource bulletin  

SciTech Connect

Presents highlights of Idaho`s forest resources as of 1991. Describes the extent, condition, and location of the State`s forests, focusing on timberland. Includes statistical tables providing data by area, ownership, forest type, species, volume, mortality, growth, and removals for timberland.

Brown, M.J.; Chojnacky, D.C.

1996-11-01

294

Water resources data for Idaho, water year 1992. Volume 1. Great Basin and Snake River Basin above King Hill. Water-data report (Annual), 1 October 91-30 September 1992  

SciTech Connect

Water resources data for the 1992 water year for Idaho consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; discharge of irrigation diversions; and water levels and water quality of ground water. The two volumes of the report contain discharge records for 194 stream-gaging stations and 42 irrigation diversions; stage only records for 4 stream-gaging stations; stage only for 7 lakes and reservoirs; contents only for 24 lakes and reservoirs; water-quality for 50 stream-gaging stations, 400 wells, and 11 lakes; daily totals for 1 precipitation gage; and water levels for 475 observation wells.

Harenberg, W.A.; Jones, M.L.; O'Dell, I.; Brennan, T.S.; Lehmann, A.K.

1993-03-25

295

Strontium Distribution Coefficients of Basalt and Sediment Infill Samples from the Idaho National Engineering and Environmental Laboratory, Idaho  

SciTech Connect

The U.S. Geological Survey and Idaho State University, in cooperation with the U.S. Department of Energy, are conducting a study to determine and evaluate strontium distribution coefficients (Kds) of subsurface materials at the Idaho National Engineering and Environmental Laboratory (INEEL). The purpose of this study is to aid in assessing the variability of strontium Kds at the INEEL as part of an ongoing investigation of chemical transport of strontium-90 in the Snake River Plain aquifer. Batch experimental techniques were used to determine Kds of six basalt core samples, five samples of sediment infill of vesicles and fractures, and six standard material samples. Analyses of data from these experiments indicate that the Kds of the sediment infill samples are significantly larger than those of the basalt samples. Quantification of such information is essential of furthering the understanding of transport processes of strontium-90 in the Snake River Plain aquifer and in similar environments.

M. N. Pace; R. C. Bartholomay (USGS); J. J. Rosentreter (ISU)

1999-07-01

296

Idaho Habitat and Natural Production Monitoring : Annual Report 1989.  

SciTech Connect

Project 83-7 was established under the Northwest Power Planning Council's 1982 Fish and Wildlife Program to monitor natural production of anadromous fish, evaluate Bonneville Power Administration (BPA) habitat improvement projects, and develop a credit record for off-site mitigation projects in Idaho. Project 83-7 is divided into two subprojects: general and intensive monitoring. Primary objectives of the general monitoring subproject (Part 1) are to determine natural production increases due to habitat improvement projects in terms of parr production and to determine natural production status and trends in Idaho. The second objective is accomplished by combining parr density data from monitoring and evaluation of BPA habitat projects and from other Idaho Department of Fish and Game (IDFG) management and research activities. Primary objectives of the intensive monitoring subproject (Part 2) are to determine the number of returning chinook and steelhead adults necessary to achieve optimal smolt production and to develop mitigation accounting based on increases in smolt production. Two locations are being intensively studied to meet these objectives. Field work began in 1987 in the upper Salmon River and Crooked River (South Fork Clearwater River tributary). 22 refs., 10 figs., 17 tabs.

Kiefer, Russell B.; Forster, Katharine A.

1991-01-01

297

Summary of information on synthetic organic compounds and trace elements in tissue of aquatic biota, Clark Fork-Pend Oreille and Spokane River basins, Montana, Idaho, and Washington, 1974-96  

USGS Publications Warehouse

As part of the Northern Rockies Intermontane Basins study of the National Water-Quality Assessment Program, data collected between 1974 and 1996 were compiled to describe contaminants in tissue of riverine species. Tissue-contaminant data from 11 monitoring programs and studies representing 28 sites in the study area were summarized. Tissue-contaminant data for most streams generally were lacking. Many studies have focused on and around mining-affected areas on the Clark Fork and Coeur d'Alene Rivers and their major tributaries. DDT and PCBs and their metabolites and congeners were the synthetic organic contaminants most commonly detected in fish tissue. Fish collected from the Spokane River in Washington contained elevated concentrations of PCB arochlors, some of which exceeded guidelines for the protection of human health and predatory wildlife. Tissue samples of fish from the Flathead River watershed contained higher-than-expected concentrations of PCBs, which might have resulted from atmospheric transport. Trace element concentrations in fish and macroinvertebrates collected in and around mining areas were elevated compared with background concentrations. Some cadmium, copper, lead, and mercury concentrations in fish tissue were elevated compared with results from other studies, and some exceeded guidelines. Macroinvertebrates from the Coeur d'Alene River contained higher concentrations of cadmium, lead, and zinc than did macroinvertebrates from other river systems in mining-affected areas. A few sportfish fillet samples, most from the Spokane River in Washington, were collected to assess human health risk. Concentrations of PCBs in these fillets exceeded screening values for the protection of human health. At present, there is no coordinated, long-term fish tissue monitoring program for rivers in the study area, even though contaminants are present in fish at levels considered a threat to human health. Development of a coordinated, centralized national data base for contaminants in fish tissue is needed. The National Water-Quality Assessment Program can provide a framework for other agencies to evaluate tissue contaminants in the Northern Rockies Intermontane Basins study area. As of 1996, there are no fish consumption advisories or fishing restrictions as a result of elevated contaminants on any rivers within the study area.

Maret, T. R.; Dutton, D. M.

1999-01-01

298

Herpetological Survey of Southcentral Idaho.  

National Technical Information Service (NTIS)

The primary objective of this study was to provide information concerning current amphibian and reptile occurrence throughout southcentral Idaho where few historical data are available. This information will be incorporated into the Northern Intermountain...

C. R. Peterson J. P. Shive

2003-01-01

299

76 FR 13976 - Eastern Idaho Resource Advisory Committee; Caribou-Targhee National Forest, Idaho Falls, ID  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service Eastern Idaho Resource Advisory Committee; Caribou-Targhee National Forest, Idaho Falls, ID AGENCY: Forest...Caribou-Targhee National Forests' Eastern Idaho Resource Advisory...

2011-03-15

300

76 FR 22076 - Bussel 484, Idaho Panhandle National Forests, Idaho, Shoshone County  

Federal Register 2010, 2011, 2012, 2013

...AGRICULTURE Forest Service Bussel 484, Idaho Panhandle National Forests, Idaho, Shoshone County AGENCY: Forest Service...availability in the Federal Register. The Idaho Panhandle National Forests Supervisor will make a decision on...

2011-04-20

301

75 FR 11105 - Kootenai (KNF) and Idaho Panhandle National Forests (IPNF); Montana, Idaho and Washington...  

Federal Register 2010, 2011, 2012, 2013

...Forest Service Kootenai (KNF) and Idaho Panhandle National Forests (IPNF); Montana, Idaho and Washington; Revised Land and Resource...November 9, 2000, for the Kootenai and Idaho Panhandle National Forests located in Lincoln, Sanders,...

2010-03-10

302

76 FR 13345 - Eastern Idaho Resource Advisory Committee; Caribou-Targhee National Forest, Idaho Falls, ID  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service Eastern Idaho Resource Advisory Committee; Caribou-Targhee National Forest, Idaho Falls, ID AGENCY: Forest...Caribou-Targhee National Forests' Eastern Idaho Resource Advisory...

2011-03-11

303

33 CFR 117.385 - Snake River.  

Code of Federal Regulations, 2013 CFR

...Navigable Waters 1 2013-07-01 2013-07-01 false Snake River. 117.385 Section 117.385 Navigation and Navigable...REGULATIONS Specific Requirements Idaho § 117.385 Snake River. The drawspan of the U.S. 12 bridge, mile...

2013-07-01

304

Water information bulletin No. 30 geothermal investigations in Idaho  

SciTech Connect

There are 899 thermal water occurrences known in Idaho, including 258 springs and 641 wells having temperatures ranging from 20 to 93/sup 0/C. Fifty-one cities or towns in Idaho containing 30% of the state's population are within 5 km of known geothermal springs or wells. These include several of Idaho's major cities such as Lewiston, Caldwell, Nampa, Boise, Twin Falls, Pocatello, and Idaho Falls. Fourteen sites appear to have subsurface temperatures of 140/sup 0/C or higher according to the several chemical geothermometers applied to thermal water discharges. These include Weiser, Big Creek, White Licks, Vulcan, Roystone, Bonneville, Crane Creek, Cove Creek, Indian Creek, and Deer Creek hot springs, and Raft River, Preston, and Magic Reservoir areas. These sites could be industrial sites, but several are in remote areas away from major transportation and, therefore, would probably be best utilized for electrical power generation using the binary cycle or Magma Max process. Present uses range from space heating to power generation. Six areas are known where commercial greenhouse operations are conducted for growing cut and potted flowers and vegetables. Space heating is substantial in only two places (Boise and Ketchum) although numerous individuals scattered throughout the state make use of thermal water for space heating and private swimming facilities. There are 22 operating resorts using thermal water and two commercial warm-water fish-rearing operations.

Mitchell, J.C.; Johnson, L.L.; Anderson, J.E.; Spencer, S.G.; Sullivan, J.F.

1980-06-01

305

Relationships Between Landscape Habitat Characteristics and Relative Density Categories of Steelhead Trout and Chinook Salmon Parr in Idaho, 1999 Annual Report.  

SciTech Connect

This paper is an investigation into possible relationships between landscape habitat characteristics and density categories of steelhead and spring/summer chinook parr within index streams in the Snake River drainage in Idaho.

Thompson, William L.; Lee, Danny C.

1999-09-01

306

Augmented Fish Health Monitoring in Idaho, 1989-1990 Annual Report.  

SciTech Connect

The Idaho augmented fish health monitoring contract DE-A179-87BP65903 was awarded in June 1987 and fully implemented in January 1988. The third annual report of activities serviced under this contract is presented. The prevailing fish health problems in 1989 include persistent infections caused by infectious pancreatic necrosis virus (IPNV), by Myxobolus (Myxosoma) cerebralis, Renibacterium salmoninarum and drug resistant Aeromonas salmonicida at select hatcheries on Idaho's upper Columbia River tributaries. Administrative focus during the year was to fill vacant positions and still maintain the monitoring effort at levels agreed on under contract. Complete diagnostic and inspection services were provided to eleven Idaho anadromous facilities. The present report describes work done to meet contract agreements and summarizes the fish health findings of anadromous stocks reared at and returning to Idaho's facilities during 1989.

Hauck, A. K. (A. Kent)

1990-10-01

307

3. VIEW OF LANE BARN WITH LITTLE WOOD RIVER AND ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

3. VIEW OF LANE BARN WITH LITTLE WOOD RIVER AND IDAHO IRRIGATION COMPANY PUMP HOUSE ON RIGHT. CAMERA POINTED NORTHEAST. - James H. Lane Ranch, Barn, One Mile South of Richfield on Highway 26, Richfield, Lincoln County, ID

308

UPPER SNAKE RIVER BASIN WATER QUALITY ASSESSMENT, 1976  

EPA Science Inventory

This package contains information for the Upper Snake River Basin, Idaho (170402, 17040104). The report contains a water quality assessment approach which will assist EPA planners, land agencies, and state and local agencies in identifying probably nonpoint sources and determini...

309

Paleozoic carbonate buildup (reef) inventory, central and southeastern Idaho  

SciTech Connect

Knowledge of central and southeastern Idaho's Paleozoic rocks to date suggest that three styles of buildup (reef) complexes occur in Late Devonian, Mississippian, and Pennsylvanian-Permian time. The Late Devonian Jefferson Formation has stromatoporoid and coral (both rugosan and tabulate) organisms effecting a buildup in the Grandview Canyon vicinity; Early Mississippian Waulsortian-type mud mounds occur in the Lodgepole formation of southeastern Idaho; there are Late Mississippian Waulsortian-type mounds in the Surrett Canyon Formation of the Lost River Range; and cyclic Pennsylvanian-Permian algal and hydrozoan buildups occur in the Juniper gulch Member of the Snaky Canyon Formation in the Arco Hills and Lemhi Range. Late Devonian (Frasnian) carbonates of the Jefferson formation show buildup development on deep ramp sediments.

Isaacson, P.E.

1987-08-01

310

Prehistoric Rock Structures of the Idaho National Laboratory  

SciTech Connect

Over the past 13,500 years, human populations have lived in and productively utilized the natural resources offered by the cold desert environment of the northeastern Snake River Plain in eastern Idaho. Within an overall framework of hunting and gathering, groups relied on an intimate familiarity with the natural world and developed a variety of technologies to extract the resources that they needed to survive. Useful items were abundant and found everywhere on the landscape. Even the basaltic terrain and the rocks, themselves, were put to productive use. This paper presents a preliminary classification scheme for rock structures built on the Idaho National Laboratory landscape by prehistoric aboriginal populations, including discussions of the overall architecture of the structures, associated artifact assemblages, and topographic placement. Adopting an ecological perspective, the paper concludes with a discussion of the possible functions of these unique resources for the desert populations that once called the INL home.

Brenda R Pace

2007-04-01

311

Chemical Constituents in Ground Water from 39 Selected Sites with an Evaluation of Associated Quality Assurance Data, Idaho National Engineering and Environmental Laboratory and Vicinity, Idaho  

SciTech Connect

This report presents a compilation of water-quality data along with an evaluation of associated quality assurance data collected during 1990-94 from the Snake River Plain aquifer and two springs located in areas that provide recharge to the Snake River Plain aquifer. The data were collected as part of the continuing hydrogeologic investigation at the Idaho National Engineering and Environmental Laboratory (INEEL). This report is the third in a series of four reports and presents data collected to quantitatively assess the natural geochemical system at the INEEL. Ground-water quality data - collected during 1990-94 from 39 locations in the eastern Snake River Plain - are presented.

L. L. Knobel; R. C. Bartholomay; B. J. Tucker; L. M. Williams; L. D. Cecil

1999-08-01

312

Econometric Model of the State of Idaho.  

National Technical Information Service (NTIS)

The rapidly increasing complexity of Idaho's social and economic environment has required the accurate forecasting of the impact of state policies on Idaho's economic well being. It is therefore natural to find among those responsible for state planning a...

D. W. Holley P. Lichtenstein

1977-01-01

313

Idaho's Forest Products Industry: A Descriptive Analysis.  

National Technical Information Service (NTIS)

This report provides a description of the structure, capacity, and condition of Idahos primary forest products industry; traces the flow of Idahos 2001 timber harvest through the primary sectors; and quantifies volumes and uses of wood fiber. The economic...

T. A. Morgan C. E. Keegan T. P. Spoelma T. Dillon A. L. Hearst F. G. Wagner L. T. DeBlander

2004-01-01

314

Assessment of the Geothermal System Near Stanley, Idaho  

SciTech Connect

The City of Stanley, Idaho (population 63) is situated in the Salmon River valley of the central Idaho highlands. Due to its location and elevation (6270 feet amsl) it is one of the coldest locales in the continental U.S., on average experiencing frost 290 days of the year as well as 60 days of below zero (oF) temperatures. Because of high snowfall (76 inches on average) and the fact that it is at the terminus of its rural grid, the city also frequently endures extended power outages during the winter. To evaluate its options for reducing heating costs and possible local power generation, the city obtained a rural development grant from the USDA and commissioned a feasibility study through author Roy Mink to determine whether a comprehensive site characterization and/or test drilling program was warranted. Geoscience students and faculty at Idaho State University (ISU), together with scientists from the Idaho Geological Survey (IGS) and Idaho National Laboratory (INL) conducted three field data collection campaigns between June, 2011 and November, 2012 with the assistance of author Beckwith who arranged for food, lodging and local property access throughout the field campaigns. Some of the information collected by ISU and the IGS were compiled by author Mink and Boise State University in a series of progress reports (Makovsky et al., 2011a, b, c, d). This communication summarizes all of the data collected by ISU including data that were compiled as part of the IGS’s effort for the National Geothermal Data System’s (NGDS) data compilation project funded by the Department of Energy and coordinated by the Arizona Geological Survey.

Trent Armstrong; John Welhan; Mike McCurry

2012-06-01

315

Tectonic development of southwestern Montana and east-central Idaho  

SciTech Connect

The region of southwestern Montana and east-central Idaho, north of the Snake River plain and east of the Idaho batholith, has been affected by a complex sequence of orogenic events from the Proterozoic through Holocene time. Deposition of Proterozoic Belt Supergroup rocks and rocks of similar age in east-central Idaho occurred in basins that were clearly fault controlled. Many of these faults were reactivated repeatedly at later times and controlled or affected the development of younger tectonic features. This study encompasses the entire width of the Sevier orogenic belt in this part of the Cordilleran fold and thrust belt. The thrust belt comprises several major eastward-transported thrust plates that are successively younger to the east. These plates juxtapose distinct stratigraphic packages that were deposited in eugeoclinal, miogeoclinal, and continental platform settings. As a consequence, the thrust plates can be distinguished on the basis of facies and thickness distribution as well as, to some extent, structural style. In southwest Montana, Sevier-type structures overlap with, and butt against, basement-involved Laramide structures. The extension of southwest Montana basement trends into Idaho suggests that this overlap may extend into east-central Idaho. Superimposed on these older structures are mid-Tertiary to Holocene normal faults that formed present-day basins and ranges. Many of these are reactivated older fault zones, some of which can be shown to have Precambrian ancestry. The region has excellent oil and gas potential, because reservoir and source rocks and trapping mechanisms are all clearly present. However, an understanding of the effect of overlapping tectonic elements is necessary to predict accurately where favorable rock packages are preserved.

Lopez, D.A.

1984-07-01

316

Mineralogy of selected sedimentary interbeds at or near the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

The US Geological Survey`s (USGS) Project Office at the Idaho National Engineering Laboratory (INEL) analyzed 66 samples from sedimentary interbed cores during a 38-month period beginning in October 1990 to determine bulk and clay mineralogy. These cores had been collected from 19 sites in the Big Lost River Basin, 2 sites in the Birch Creek Basin, and 1 site in the Mud Lake Basin, and were archived at the USGS lithologic core library at the INEL. Mineralogy data indicate that core samples from the Big Lost River Basin have larger mean and median percentages of quartz, total feldspar, and total clay minerals, but smaller mean and median percentages of calcite than the core samples from the Birch Creek Basin. Core samples from the Mud Lake Basin have abundant quartz, total feldspar, calcite, and total clay minerals. Identification of the mineralogy of the Snake River Plain is needed to aid in the study of the hydrology and geochemistry of subsurface waste disposal.

Reed, M.F.; Bartholomay, R.C.

1994-08-01

317

Localized rotation during Paleogene Extension in east central Idaho: Paleomagnetic and geologic evidence  

Microsoft Academic Search

We collected paleomagnetic data from 137 sites in middle Eocene volcanic rocks of the northeastern Basin and Range province in order to characterize the three-dimensional kinematics of continental extension in the Lost River and Lemhi ranges, Idaho, and to test previous block rotation models. Statistically significant flattening of directions at three of 10 localities reflects either insufficient averaging of paleosecular

Susanne U. Janecke; John W. Geissman; Ronald L. Bruhn

1991-01-01

318

REPORT ON WASTE SOURCE MONITORING IN THE BURLEY, IDAHO AREA, 1974  

EPA Science Inventory

At the request of EPA Region 10, NFIC-D conducted waste source monitoring in the Burley, Idaho area (17040209) from October 21-28, 1974 to provide an input to the water quality predictive mathematical model which covers the Milner Reservoir reach of the Snake River. Each waste s...

319

Sediment sources and yields within the Idaho batholith in a changing climate  

Microsoft Academic Search

Mountain basins of the Idaho batholith are characterized by steep terrain, highly erodible granitic soils, wildfire, and rain-on-snow and summer convective storms that collectively produce naturally high sediment yields. This sediment is essential to habitat formation for aquatic organisms, but also decreases reservoir capacity and increases flood risk near the Lower Snake River dams. Climate change and land management activities

J. Goode; C. Luce; J. M. Buffington

2009-01-01

320

DEEP CREEK AND MUD CREEK, TWIN FALLS, IDAHO. WATER QUALITY STATUS REPORT, 1986  

EPA Science Inventory

Deep Creek and Mud Creek are located in Twin Falls County near Buhl, Idaho (17040212). From April through October, these creeks convey irrigation drainage water from the western part of the Twin Falls irrigation tract to the Snake River. During 1986, water quality surveys were ...

321

Neogene-Quaternary Tectonics and Volcanism of Southern Jackson Hole, Wyoming and Southeastern Idaho  

NSDL National Science Digital Library

This geology field trip guide focuses on the region south of the Snake River Plain between Pocatello, Idaho and Jackson, Wyoming. The intent was to synthesize regional tectonic relations and present new information relative to the magmatic and structural history of the region. It contains a two-day itinerary, commentary by experts, maps, and satellite images.

David, Lageson; University, Montana S.

322

WATER QUALITY STATUS REPORT, INDIAN CREEK (CANYON COUNTY), IDAHO 1976-1977  

EPA Science Inventory

The Indian Creek drainage (17050114) is located in the Boise River Basin of Southwest Idaho. This study was concerned with the portion of Indian Creek near the Nampa and Caldwell urban areas. Major land uses in the area are associated with urban development and irrigated agricu...

323

SOLE SOURCE AQUIFERS AND SOURCE AREAS IN WASHINGTON, OREGON, AND IDAHO  

EPA Science Inventory

The map shows sole source aquifers and their source areas in Washington, Oregon, and Idaho. Aquifers that have been designated are shown along with those that have been petitioned for designation. County outlines, and the Columbia river system are also shown. The aquifers.tar.g...

324

University of Idaho: Pedology Laboratory  

NSDL National Science Digital Library

This website discusses the University of Idaho's pedology laboratory's work primarily focused on the environmental factors and processes that form soils and influence their use and management. Researchers and students can learn about the volcanic ash-influenced soils in the Pacific Northwest, the hydrology of Northern Idaho, and the ability of soils in the Palouse Basin to accommodate ground water recharge. The website provides information on laboratory analysis procedures and data on andisols and andic properties. Users will also find descriptions of graduate theses and dissertations, information on the Maynard A. Fosberg Monolith Collection, and many of the laboratory's abstracts.

325

Mineralogical correlation of surficial sediment from area drainages with selected sedimentary interbeds at the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

Ongoing research by the US Geological Survey at the INEL involves investigation of the migration of radioactive elements contained in low-level radioactive waste, hydrologic and geologic factors affecting waste movement, and geochemical factors that influence the chemical composition of the waste. Identification of the mineralogy of the Snake River Plain is needed to aid in the study of the hydrology and geochemistry of subsurface waste disposal. The US Geological Surveys project office at the Idaho National Engineering Laboratory, in cooperation with the US Department of Energy, used mineralogical data to correlate surficial sediment samples from the Big Lost River, Little Lost River, and Birch Greek drainages with selected sedimentary interbed core samples taken from test holes at the RWMC (Radioactive Waste Management Complex), TRA (Test Reactors Area), ICPP (Idaho Chemical Processing Plant), and TAN (Test Area North). Correlating the mineralogy of a particular present-day drainage area with a particular sedimentary interbed provides information on historical source of sediment for interbeds in and near the INEL. Mineralogical data indicate that surficial sediment samples from the Big Lost River drainage contained a larger amount of feldspar and pyroxene and a smaller amount of calcite and dolomite than samples from the Little Lost River and Birch Creek drainages. Mineralogical data from sedimentary interbeds at the RWMC, TRA, and ICPP correlate with surficial sediment of the present-day big Lost River drainage. Mineralogical data from a sedimentary interbed at TAN correlate with surficial sediment of the present-day Birch Creek drainage. 13 refs., 5 figs., 3 tabs.

Bartholomay, R.C.

1990-08-01

326

Idaho Big Game Populations and Habitats, Idaho Wildlife: 2000.  

National Technical Information Service (NTIS)

The report discusses the habitat and populations the major big game species in Idaho, including elk, mule deer, white-tailed deer, moose, pronghorn antelope, and bighorn sheep. The discussions take a good overview of the impacts of grazing and range condi...

A. E. Thomas

1987-01-01

327

Idaho`s 1990 fuelwood harvest. Forest Service resource bulletin  

SciTech Connect

Highlights the 1990 harvest of fuelwood in Idaho by commercial fuelwood harvesters and those cutting for home consumption. Presents harvest volumes by species, county, and owner. Lists a directory of commercial fuelwood harvesters and describes the methods of data collection and compilation.

McLain, W.H.

1996-02-01

328

Contaminant Monitoring Strategy for Henrys Lake, Idaho  

SciTech Connect

Henrys Lake, located in southeastern Idaho, is a large, shallow lake (6,600 acres, {approx} 17.1 feet maximum depth) located at 6,472 feet elevation in Fremont Co., Idaho at the headwaters of the Henrys Fork of the Snake River. The upper watershed is comprised of high mountains of the Targhee National Forest and the lakeshore is surrounded by extensive flats and wetlands, which are mostly privately owned. The lake has been dammed since 1922, and the upper 12 feet of the lake waters are allocated for downriver use. Henrys Lake is a naturally productive lake supporting a nationally recognized ''Blue Ribbon'' trout fishery. There is concern that increasing housing development and cattle grazing may accelerate eutrophication and result in winter and early spring fish kills. There has not been a recent thorough assessment of lake water quality. However, the Department of Environmental Quality (DEQ) is currently conducting a study of water quality on Henrys Lake and tributary streams. Septic systems and lawn runoff from housing developments on the north, west, and southwest shores could potentially contribute to the nutrient enrichment of the lake. Many houses are on steep hillsides where runoff from lawns, driveways, etc. drain into wetland flats along the lake or directly into the lake. In addition, seepage from septic systems (drainfields) drain directly into the wetlands enter groundwater areas that seep into the lake. Cattle grazing along the lake margin, riparian areas, and uplands is likely accelerating erosion and nutrient enrichment. Also, cattle grazing along riparian areas likely adds to nutrient enrichment of the lake through subsurface flow and direct runoff. Stream bank and lakeshore erosion may also accelerate eutrophication by increasing the sedimentation of the lake. Approximately nine streams feed the lake (see map), but flows are often severely reduced or completely eliminated due to irrigation diversion. In addition, subsurface flows can occur as a result of severe cattle grazing along riparian areas and deltas. Groundwater and springs also feed the lake, and are likely critical for oxygen supply during winter stratification. During the winter of 1991, Henrys Lake experienced low dissolved oxygen levels resulting in large fish kills. It is thought that thick ice cover combined with an increase in nutrient loads created conditions resulting in poor water quality. The Idaho Department of Health and Welfare, DEQ is currently conducting a study to determine the water quality of Henrys Lake, the sources contributing to its deterioration, and potential remedial actions to correct problem areas.

John S. Irving; R. P. Breckenridge

1992-12-01

329

The Influence of ENSO and PDO on Idaho's Snowpack  

NASA Astrophysics Data System (ADS)

Idaho's snowpacks build up in the winter and slowly release water into rivers and lakes throughout the spring and summer providing critical seasonal to multi-annual water storage. Initial results indicate El-Niño-Southern- Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO) influence the quantity and timing of snowmelt in all Idaho watersheds but the magnitude of these effects vary regionally. Twenty-five plus years (~1980-2006) of snow water equivalent (SWE) data from SNOTEL data from 160 sites within the Idaho watershed are categorized as occurring during a combined phase of one of three ENSO states (El Niño, neutral or La Niña, states defined using Nino-3.4 defined years) and one of three PDO states (positive, neutral or negative, states defined using data from JIASO, University of Washington) for a total of nine possible combinations. We evaluated the total SWE received in the snowpack and the timing for final melt of that snowpack with respect to ENSO and PDO conditions. ENSO and PDO produce major regional timing fluctuations in final snowmelt dates, as well as significantly low (high) flow events based upon decreased (increased) overall snowfall accumulation. We are able to separate Idaho's watershed into five distinct climatic regions for SWE accumulation and snowmelt timing. Each region reacts differently to the combined ENSO/PDO induced climatic variability as shown by distinct dates of final snowmelt and variability in snow accumulations. This variability may indicate dissimilar moisture sources and weather patterns for each region (e.g. Pacific- dominated western regions vs. `monsoonally'-influenced southeastern regions). Since depth of snowpack and timing of snowmelt influences the timing and magnitude of low (high) flow events and drought conditions in forest canopies, variations in snowmelt have implications for Idaho's water supply, hydroelectric generation, wildfire conditions, native fish populations and economy. Future work will address the possible role of the Atlantic Multidecadal Oscillation (AMO) in controlling Idaho snowpacks and relationships between the timing of snowmelt, peak flows, and past fire activity in Idaho forests.

Kunkel, M. L.; Pierce, J. L.

2006-12-01

330

Biological and Physical Inventory of the Streams within the Nez Perce Reservation; Juvenile Steelhead Survey and Factors that Affect Abundance in Selected Streams in the Lower Clearwater River Basin, Idaho, 1983-1984 Final Report.  

SciTech Connect

A biological and physical inventory of selected tributaries in the lower Clearwater River basin was conducted to collect information for the development of alternatives and recommendations for the enhancement of the anadromous fish resources in streams on the Nez Perce Reservation. Five streams within the Reservation were selected for study: Bedrock and Cottonwood Creeks were investigated over a two year period (1983 to 1984) and Big Canyon, Jacks and Mission Creeks were studied for one year (1983). Biological information was collected and analyzed on the density, biomass, production and outmigration of juvenile summer steelhead trout. Physical habitat information was collected on available instream cover, stream discharge, stream velocity, water temperature, bottom substrate, embeddedness and stream width and depth. The report focuses on the relationships between physical stream habitat and juvenile steelhead trout abundance.

Kucera, Paul A.; Johnson, David B. (Nez Perce Tribe, Lapwai, ID)

1986-08-01

331

76 FR 70954 - Idaho Panhandle National Forests, Idaho; Idaho Panhandle National Forest Noxious Weed Treatment...  

Federal Register 2010, 2011, 2012, 2013

The Forest Service will prepare an Environmental Impact Statement (EIS) for a proposal to manage non-native invasive plant (NNIP) species on National Forest System (NFS) lands within the boundaries of the Idaho Panhandle National Forests (IPNF). This area is approximately 2.5 million acres in size and includes portions of the following states and counties; Benewah, Bonner, Boundary, Clearwater,......

2011-11-16

332

Kootenai River Experiment: An overview of river flow observations and modeling (Invited)  

Microsoft Academic Search

Novel river flow observations were obtained during a recent field experiment at the Kootenai River, Idaho, in August 2010. The focus of the experiment was on the 3D velocity structure of the flow, secondary circulations, and concurrent large scale turbulence as function of variation in bed level and river alignment. A combination of in-situ observations and three-dimensional (3D) modeling is

A. J. Reniers; J. H. Macmahan; W. Swick; W. Ashley; J. Brown; C. Tuggle; P. Rynne; E. B. Thornton; K. Holland

2010-01-01

333

77 FR 53192 - Environmental Management Site-Specific Advisory Board, Idaho National Laboratory  

Federal Register 2010, 2011, 2012, 2013

...Idaho Operations Office, 1955 Fremont Avenue, MS- 1203, Idaho Falls, Idaho 83415. Phone (208...Projected Execution Idaho Cleanup Project (ICP) Contract Accomplishments ICP Contract Closeout Process Public...

2012-08-31

334

Teton Dam flood of June 1976, Deer Parks quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification of these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Deer Parks quadrangle. (Woodard-USGS)

Ray, H. A.; Bennett, C. Michael; Records, Andrew W.

1976-01-01

335

Teton Dam flood of June 1976, Rigby quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification of these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Rigby quadrangle. (Woodard-USGS)

Ray, H. A.; Bigelow, B. B.

1976-01-01

336

Teton Dam flood of June 1976, Lewisville quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification of these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Lewisville quadrangle. (Woodard-USGS)

Ray, H. A.; Bigelow, B. B.

1976-01-01

337

Teton Dam flood of June 1976, Woodville quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification of these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Woodville quadrangle. (Woodard-USGS)

Matthai, Howard F.; Ray, H. A.

1976-01-01

338

Teton Dam flood of June 1976, Rexburg quadrangle, Idaho  

USGS Publications Warehouse

The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The area covered by the atlases extends from Teton Dam downstream to American Falls Reservoir, a distance of 100 miles. The extent of flooding shown on the maps was obtained by field inspections and aerial photographs made during and immediately after the flood. There may be small isolated areas within the boundaries shown that were not flooded, but the identification on these sites was beyond the scope of the study. The elevation data shown are mean-sea-level elevations of high-water marks identified in the field. This particular map (in the 17-map series) shows conditions in the Rexburg quadrangle. (Woodard-USGS)

Harenberg, W. A.; Bigelow, B. B.

1976-01-01

339

Distributed Wind Energy in Idaho  

Microsoft Academic Search

Project Objective: ;\\u000aThis project is a research and development program aimed at furthering distributed wind technology. In particular, this project addresses some of the barriers to distributed wind energy utilization in Idaho.;\\u000aBackground: ;\\u000aAt its core, the technological challenge inherent in Wind Energy is the transformation of a highly variable form of energy to one which is compatible

John Gardner; James Ferguson; Said Ahmed-Zaid; Kathryn Johnson; Todd Haynes; Keith Bennett

2009-01-01

340

Survey of Columbia River Basin streams for Columbia pebblesnail Fluminicola columbiana and shortface lanx Fisherola nuttalli  

SciTech Connect

At present, there are only two remaining sizable populations of Columbia pebblesnails Fluminicola columbiana; those in the Methow and Okanogan rivers, Washington. Smaller populations survive in the Hanford Reach of the Columbia River, Washington, and the lower Salmon River, Idaho, and possibly in the middle Snake River, Idaho; Hells Canyon of the Snake River, Idaho, Washington, and Oregon, and the Grande Ronde River, Oregon and Washington. Neither large population is at present protected, and there has been a substantial documented reduction in the species` historic range. Large populations of the shortface lanx Fisherolla nuttalli persist in four streams: the Deschutes River, Oregon; the Hanford Reach and Bonneville Dam area of the Columbia River, Washington and Oregon; Hens Canyon of the Snake River, Idaho and Oregon; and the Okanogan River, Washington. Smaller populations, or ones of uncertain size, are known from the lower Salmon and middle Snake rivers, Idaho; the Grande Ronde Washington and Oregon; Imnaha, and John Day rivers, Oregon; and the Methow River, Washington. While substantial range reduction has occurred in this species, and the large populations are not well protected, the problem is not as severe as in the case of the Columbia pebblesnail. Both species appear to have been widespread historically in the mainstem Columbia River and the Columbia River Basin prior to the installation of the current dam system. Both are now apparently reduced within the Columbia River to populations in the Hanford Reach and possibly other sites that are now separated by large areas of unsuitable habitat from those in the river`s major tributaries.

Neitzel, D.A. [Pacific Northwest Lab., Richland, WA (United States); Frest, T.J. [Deixis Consultants, Seattle, WA (United States)

1992-08-01

341

Chlorofluorocarbons, Sulfur Hexafluoride, and Dissolved Permanent Gases in Ground Water from Selected Sites In and Near the Idaho National Engineering and Environmental Laboratory, Idaho, 1994 - 1997  

Microsoft Academic Search

From July 1994 through May 1997, the U.S. Geological Survey, in cooperations with the Department of Energy, sampled 86 wells completed in the Snake River Plain aquifer at and near the Idaho National Engineering and Environmental Laboratory (INEEL). The wells were sampled for a variety of constituents including one- and two-carbon halocarbons. Concentrations of dichlorodifluoromethane (CFC-12), trichlorofluoromethane (CFC-11), and trichlorotrifluororoethane

E. Busenberg; L. N. Plummer; R. C. Bartholomay; J. E. Wayland

1998-01-01

342

Idaho CERCLA Disposal Facility Complex Waste Acceptance Criteria  

SciTech Connect

The Idaho Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Disposal Facility (ICDF) has been designed to accept CERCLA waste generated within the Idaho National Laboratory. Hazardous, mixed, low-level, and Toxic Substance Control Act waste will be accepted for disposal at the ICDF. The purpose of this document is to provide criteria for the quantities of radioactive and/or hazardous constituents allowable in waste streams designated for disposal at ICDF. This ICDF Complex Waste Acceptance Criteria is divided into four section: (1) ICDF Complex; (2) Landfill; (3) Evaporation Pond: and (4) Staging, Storage, Sizing, and Treatment Facility (SSSTF). The ICDF Complex section contains the compliance details, which are the same for all areas of the ICDF. Corresponding sections contain details specific to the landfill, evaporation pond, and the SSSTF. This document specifies chemical and radiological constituent acceptance criteria for waste that will be disposed of at ICDF. Compliance with the requirements of this document ensures protection of human health and the environment, including the Snake River Plain Aquifer. Waste placed in the ICDF landfill and evaporation pond must not cause groundwater in the Snake River Plain Aquifer to exceed maximum contaminant levels, a hazard index of 1, or 10-4 cumulative risk levels. The defined waste acceptance criteria concentrations are compared to the design inventory concentrations. The purpose of this comparison is to show that there is an acceptable uncertainty margin based on the actual constituent concentrations anticipated for disposal at the ICDF. Implementation of this Waste Acceptance Criteria document will ensure compliance with the Final Report of Decision for the Idaho Nuclear Technology and Engineering Center, Operable Unit 3-13. For waste to be received, it must meet the waste acceptance criteria for the specific disposal/treatment unit (on-Site or off-Site) for which it is destined.

W. Mahlon Heileson

2006-10-01

343

Stratigraphy of the unsaturated zone at the radioactive waste management complex, Idaho National Engineering Laboratory, Idaho  

USGS Publications Warehouse

A complex sequence of layered basalt flows, cinders, and sediment underlies the Radioactive Waste Management Complex at the Idaho National Engineering Laboratory in southeastern Idaho. Wells drilled to 700 ft penetrate a sequence of 10 basalt-flow groups and 7 major sedimentary interbeds that range in age from about 100,000 to 600,000 years old. The 10 flow groups consist of 22 separate lava flows and flow-units. Each flow group is made up of from one to five petrographically similar flows that erupted from common source areas during periods of less than 200 years. Sedimentary interbeds consist of fluvial, lacustrine, and wind-blown deposits of clay, silt, sand, and gravel that accumulated during periods of volcanic inactivity ranging from thousands to hundreds of thousands of years. Flows and sediment are unsaturated to a depth of about 600 ft. Flows and sediment below a depth of 600 ft are saturated and make up the uppermost part of the Snake River Plain aquifer. The areal extent of flow groups and interbeds was determined from well cuttings, cores, geophysical logs, potassium-argon ages, and geomagnetic properties. Stratigraphical control was provided by four sequential basalt flows near the base of the unsaturated zone that have reversed geomagnetic polarity and high emission of natural gamma radiation compared to other flows. Natural gamma logs were used as a primary correlation tool. Natural-gamma emissions, which are generally uniform in related, petrographically similar flows, increase or decrease between petrographically dissimilar flows of different age and source. (USGS)

Anderson, S. R.; Lewis, B. D.

1989-01-01

344

40 CFR 131.33 - Idaho.  

Code of Federal Regulations, 2013 CFR

...33 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) WATER PROGRAMS WATER QUALITY STANDARDS Federally Promulgated Water Quality Standards § 131.33 Idaho. (a) Temperature criteria for bull...

2013-07-01

345

Idaho`s timber production and mill residue, 1990. Forest Service resource bulletin  

SciTech Connect

Reports 1990 timber production estimates for Idaho by County, species, owner, and product. Also reports estimates of mill residue by use. Data obtained by canvassing primary wood processors in Idaho and Out-of-State mills receiving logs harvested in Idaho.

McLain, W.H.; Keegan, C.E.; Wichman, D.P.

1996-03-01

346

Survey of Columbia River Basin streams for Columbia pebblesnail Fluminicola columbiana and shortface lanx Fisherola nuttalli  

SciTech Connect

At present, there are only two remaining sizable populations of Columbia pebblesnails Fluminicola columbiana; those in the Methow and Okanogan rivers, Washington. Smaller populations survive in the Hanford Reach of the Columbia River, Washington, and the lower Salmon River, Idaho, and possibly in the middle Snake River, Idaho; Hells Canyon of the Snake River, Idaho, Washington, and Oregon, and the Grande Ronde River, Oregon and Washington. Neither large population is at present protected, and there has been a substantial documented reduction in the species' historic range. Large populations of the shortface lanx Fisherolla nuttalli persist in four streams: the Deschutes River, Oregon; the Hanford Reach and Bonneville Dam area of the Columbia River, Washington and Oregon; Hens Canyon of the Snake River, Idaho and Oregon; and the Okanogan River, Washington. Smaller populations, or ones of uncertain size, are known from the lower Salmon and middle Snake rivers, Idaho; the Grande Ronde Washington and Oregon; Imnaha, and John Day rivers, Oregon; and the Methow River, Washington. While substantial range reduction has occurred in this species, and the large populations are not well protected, the problem is not as severe as in the case of the Columbia pebblesnail. Both species appear to have been widespread historically in the mainstem Columbia River and the Columbia River Basin prior to the installation of the current dam system. Both are now apparently reduced within the Columbia River to populations in the Hanford Reach and possibly other sites that are now separated by large areas of unsuitable habitat from those in the river's major tributaries.

Neitzel, D.A. (Pacific Northwest Lab., Richland, WA (United States)); Frest, T.J. (Deixis Consultants, Seattle, WA (United States))

1992-08-01

347

Bull trout (Salvelinus confluentus) movement in a transboundary river  

Microsoft Academic Search

The bull trout (Salvelinus confluentus) is listed as a threatened species and is native to the Kootenai River, Idaho and Montana, USA, and British Columbia (BC), Canada. Little is known about its life history and movements downstream of Kootenai Falls, Montana. Between 1998 and 2006, 19 bull trout were monitored in the Kootenai River with radio and sonic transmitters. Two

Vaughn L. Paragamian; Jody P. Walters

2011-01-01

348

Distribution, Status, and Likely Future Trends of Bull Trout within the Columbia River and Klamath River Basins  

Microsoft Academic Search

We summarized existing knowledge regarding the distributionand statusof bull trout Salvelinus confluentus across 4,462 subwatersheds of the interiorColumbia River basin in Oregon, Washington, Idaho, Montana, and Nevada and of the Klamath River basin in Oregon, a region thatrepresents about 20% of the species' global range .We used classificationtreesand the patterns of association between known distributions and landscape characteristics to predict

BRUCE E. RIEMAN; DANNY C. LEE; RUSSELL F. THUROW

1997-01-01

349

Idaho Water Resources Research Institute Annual Technical Report, FY 2001.  

National Technical Information Service (NTIS)

The Idaho Water Resources Research Institute, University of Idaho is dedicated to supporting and promoting water and water-related applied investigations and solutions, education, and information transfer throughout Idaho. IWRRI collaborates with scientis...

2001-01-01

350

36 CFR 294.22 - Idaho Roadless Areas.  

Code of Federal Regulations, 2010 CFR

...and Public Property FOREST SERVICE, DEPARTMENT...AGRICULTURE SPECIAL AREAS Idaho Roadless Area Management § 294.22 Idaho Roadless Areas. ...Designations . All National Forest System lands within the State of Idaho listed in §...

2009-07-01

351

75 FR 64691 - North Central Idaho Resource Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service North Central Idaho Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting...SUMMARY: The North Central Idaho RAC will meet in Potlatch, Idaho....

2010-10-20

352

76 FR 50452 - South Central Idaho Resource Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...AGRICULTURE South Central Idaho Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION...The South Central Idaho Resource Advisory Committee...the Sawtooth National Forest, 2647 Kimberly Road East, Twin Falls, Idaho. Please call...

2011-08-15

353

36 CFR 294.22 - Idaho Roadless Areas.  

Code of Federal Regulations, 2013 CFR

...and Public Property FOREST SERVICE, DEPARTMENT...AGRICULTURE SPECIAL AREAS Idaho Roadless Area Management § 294.22 Idaho Roadless Areas. ...Designations . All National Forest System lands within the State of Idaho listed in §...

2013-07-01

354

36 CFR 294.22 - Idaho Roadless Areas.  

Code of Federal Regulations, 2010 CFR

...and Public Property FOREST SERVICE, DEPARTMENT...AGRICULTURE SPECIAL AREAS Idaho Roadless Area Management § 294.22 Idaho Roadless Areas. ...Designations . All National Forest System lands within the State of Idaho listed in §...

2010-07-01

355

Idaho ASAP Demonstration Project, Volume I. Final Report Summary (1976).  

National Technical Information Service (NTIS)

The report provides background information for the Alcohol Safety Action Project in Idaho. Countermeasures implemented to reduce the number of drunken drivers on Idaho highways are discussed. Accident trends in Idaho before the project, during the project...

1977-01-01

356

Geothermal significance of magnetotelluric sounding in the eastern Snake River Plain-Yellowstone region  

Microsoft Academic Search

Magnetotelluric sounding along a profile extending from the Raft River geothermal area in southern Idaho to Yellowstone National Park in Wyoming reveal a highly anomalous crustal structure involving a conductive zone at depths that range from 18 km in the central park of the eastern Snake River Plain to 7 km beneath the Raft River thermal area and as little

W. D. Stanley; J. E. Boehl; F. X. Bostick; H. W. Smith

1977-01-01

357

Kootenai River velocities, depth, and white sturgeon spawning site selection â?? a mystery unraveled?  

Microsoft Academic Search

Summary The Kootenai River white sturgeon Acipenser transmontanus population in Idaho, US and British Columbia (BC), Canada became recruitment limited shortly after Libby Dam became fully operational on the Kootenai River, Montana, USA in 1974. In the USA the species was listed under the Endangered Species Act in September of 1994. Kootenai River white sturgeon spawn within an 18-km reach

V. L. Paragamian; R. McDonald; G. J. Nelson; G. Barton

2009-01-01

358

Snake River Sockeye Salmon Captive Broodstock Program; Hatchery Element, 1997 Annual Report  

Microsoft Academic Search

On November 20, 1991, the National Marine Fisheries Service listed Snake River sockeye salmon Oncorhynchus nerka as endangered under the Endangered Species Act of 1973. In 1991, the Idaho Department of Fish and Game, the Shoshone-Bannock Tribes, and the National Marine Fisheries Service initiated efforts to conserve and rebuild populations in Idaho. Initial steps to recover sockeye salmon included the

Paul A. Kline; Jeff A. Heindel; Catherine Willard

2003-01-01

359

Idaho Habitat/Natural Production Monitoring Part I, 1995 Annual Report.  

SciTech Connect

The Idaho Department of Fish and Game (IDFG) has been monitoring trends in juvenile spring and summer chinook salmon, Oncorhynchus tshawytscha, and steelhead trout, O. mykiss, populations in the Salmon, Clearwater, and lower Snake River drainages for the past 12 years. This work is the result of a program to protect, mitigate, and enhance fish and wildlife affected by the development and operation of hydroelectric power plants on the Columbia River. Project 91-73, Idaho Natural Production Monitoring, consists of two subprojects: General Monitoring and Intensive Monitoring. This report updates and summarizes data through 1995 for the General Parr Monitoring (GPM) database to document status and trends of classes of wild and natural chinook salmon and steelhead trout populations. A total of 281 stream sections were sampled in 1995 to monitor trends in spring and summer chinook salmon Oncorhynchus tshawytscha and steelhead trout O. mykiss parr populations in Idaho. Percent carrying capacity and density estimates were summarized for 1985--1995 by different classes of fish: wild A-run steelhead trout, wild B-run steelhead trout, natural A-run steelhead trout, natural B-run steelhead trout, wild spring and summer chinook salmon, and natural spring and summer chinook salmon. The 1995 data were also summarized by subbasins as defined in Idaho Department of Fish and Game`s 1992--1996 Anadromous Fish Management Plan.

Hall-Griswold, J.A.; Petrosky, C.E. (Idaho Department of Fish and Game, Boise, ID)

1996-12-01

360

76 FR 18153 - Southwest Idaho Resource Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service Southwest Idaho Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice...Salmon-Challis, and Sawtooth National Forests' Southwest Idaho Resource Advisory Committee...

2011-04-01

361

76 FR 25298 - Southwest Idaho Resource Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service Southwest Idaho Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice...Salmon-Challis, and Sawtooth National Forests' Southwest Idaho Resource Advisory Committee...

2011-05-04

362

75 FR 74000 - Idaho Panhandle Resource Advisory Committee Meeting  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service Idaho Panhandle Resource Advisory Committee Meeting AGENCY: Forest Service, USDA. ACTION...The meeting location is the Idaho Panhandle National Forests' [[Page 74001

2010-11-30

363

77 FR 52310 - Central Idaho Resource Advisory Committee  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Forest Service Central Idaho Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting...SUMMARY: The Central Idaho Resource Advisory Committee will meet...

2012-08-29

364

Accumulation and effects of lead and cadmium on wood ducks near a mining and smelting complex in Idaho  

Microsoft Academic Search

A study of wood ducks (Aix sponsa) was conducted along the Coeur d'Alene River system in northern Idaho in 1986 and 1987. Most of this area has been subjected to severe contamination from lead and other metals from mining and smelting since the 1880s. In 1986, a preliminary study of wood duck nesting was conducted in the contaminated area; incubating

Lawrence J. Blus; Charles J. Henny; David J. Hoffman; Robert A. Grove

1993-01-01

365

Idaho Special Education Manual, September 2001. Revised.  

ERIC Educational Resources Information Center

This manual represents a revised version of the original 1999 Idaho Special Education Manual which is a set of guidelines to assist Idaho school districts in carrying out the provisions of the Individuals with Disabilities Education Act (IDEA) Amendments of 1997 and its implementing regulations, which were published on March 12, 1999. Additions to…

Idaho State Dept. of Education, Boise. Special Education Section.

366

Idaho Higher Education 1995 Fact Book.  

ERIC Educational Resources Information Center

|This book reports on finances, students, faculty/staff, and intercollegiate athletics at Idaho's institutions of higher education. Most information concerns the state's public four-year colleges and its three universities with selected data on institutions providing vocational education and Idaho's two community colleges. Most of the data come…

Idaho State Board of Education, Boise.

367

Weed hosts Globodera pallida from Idaho  

Technology Transfer Automated Retrieval System (TEKTRAN)

The potato cyst nematode, Globodera pallida (PCN), a restricted pest in the USA, was first reported in Bingham and Bonneville counties of Idaho in 2006. The US government and Idaho State Department of Agriculture hope to eradicate it from infested fields. Eradicating PCN will require depriving the n...

368

Minerals yearbook, 1990: Idaho. Annual report  

SciTech Connect

The 1990 Annual Report is on the Mineral Industry of Idaho. Idaho ranked 26th nationally for total mineral production value compared with 28th in 1989. The State was first in the Nation in antimony and garnet production; second in silver and vandaium production; and third in output of lead, molybdenum, and marketable phosphate rock.

Minarik, R.J.; Gillerman, V.S.

1992-09-01

369

SURVEY OF COLUMBIA RIVER BASIN STREAMS FOR COLUMBIA PEBBLESNAIL Fluminicola columbiana AND SHORTFACE LANX Fisherola nuttalli  

SciTech Connect

At present, there are only two remaining sizable populations of Columbia pebblesnail Fluminicola columbiana; those in the Methow and Okanogan rivers, Washington. Smaller populations survive in the Hanford Reach of the Columbia River, Washington; the lower Salmon River and middle Snake River, Idaho; and possibly in Hells Canyon of the Snake River, Idaho, Washington, and Oregon; and the Grande Ronde River, Oregon and Washington. Neither large population is at present protected, and there has been a substantial documented reduction in the species' historical range. Large populations of the shortface lanx Fisherola nuttalli persist in four streams: the Deschutes River, Oregon; the Hanford Reach of the Columbia River, Washington; Hells Canyon of the Snake River, Idaho and Oregon; and the Okanogan River, Washington. Smaller populations, or ones of uncertain size, are known from the lower Salmon and middle Snake rivers, Idaho; the Grande Ronde, Washington and Oregon; Imnaha and John Day rivers, Oregon; Bonneville Dam area of the Columbia River, Washington and Oregon; and the Methow River, Washington. While substantial range reduction has occurred in this species, and the large populations are not well protected, the problem is not as severe as in the case of the Columbia pebblesnail. Both species appear to have been widespread historically in the mainstem Columbia River and the Columbia River Basin prior to the installation of the current dam system. Both are now apparently reduced within the Columbia River: Columbia pebblesnail to a population in the Hanford Reach plus six other sites that are separated by large areas of unsuitable habitat from those in the river's major mbutaries shortface lanx to two populations (in the Hanford Reach and near Bonneville Dam) plus nine other sites that are separated by large areas of unsuitable habitat from those in the river's major tributaries.

Neitzel, D. A.; Frest, T. J.

1993-05-01

370

77 FR 65374 - Environmental Management Site-Specific Advisory Board, Idaho National Laboratory  

Federal Register 2010, 2011, 2012, 2013

...Operations Office, 1955 Fremont Avenue, MS- 1203, Idaho Falls, Idaho 83415. Phone...Public Involvement Idaho Cleanup Project (ICP) Progress to Date Idaho Settlement Agreement... Current Idaho National Laboratory/ICP Public Involvement/ Communications...

2012-10-26

371

Status of the Migratory Bull Trout Population in the Jarbidge River Drainage.  

National Technical Information Service (NTIS)

The Jarbridge River drainage in southern Idaho and northern Nevada supports the furthest south population of bull trout (Salvelinus confluentus) in North America. Resident populations of bull trout inhabit the headwaters of the East and West forks of the ...

B. W. Zoellick R. Armstrong J. Klott

1996-01-01

372

Ecology and Management of the South Fork Snake River Cottonwood Forest.  

National Technical Information Service (NTIS)

This report summarizes an investigation of the cottonwood ecosystem along with the South Fork Snake River from Palisades Dam to Heise, Idaho. Vegetation dynamics in time and space, with an emphasis on the cottonwood component, was the primary focus. Becau...

M. F. Merigliano

1996-01-01

373

American Falls Dam Replacement, Idaho, Upper Snake River Basin, Idaho-Wyoming.  

National Technical Information Service (NTIS)

The project would replace the existing American Falls Dam, maintain the 1.7-million-acre-foot reservoir at its present size, and construct a new 100 MW capacity powerplant just downstream. The dam, reservoir, and powerplant will be located on the Snake Ri...

1973-01-01

374

Lead toxicosis in tundra swans near a mining and smelting complex in northern Idaho  

Microsoft Academic Search

Die-offs of waterfowl have occurred in the Coeur d'Alene River system in northern Idaho since at least the early 1900's. We investigated causes of mortality and lead and cadmium contamination of 46 tundra swans (Cygnus columbianus) from 1987 to 1989; an additional 22 swans found dead in 1990 were not examined. We necropsied 43 of the 46 birds found from

Lawrence J. Blus; Charles J. Henny; David J. Hoffman; Robert A. Grove

1991-01-01

375

Effects of Increasing Zinc Levels and Habitat Degradation on Macroinvertebrate Communities in Three North Idaho Streams  

Microsoft Academic Search

A rapid bioassessment study was conducted on the South Fork of the Coeur d'Alene River and selected tributaries in northern Idaho. Species richness, Ephemeroptera-Plecoptera-Trichoptera (EPT) index, and species diversity showed strong negative correlations with habitat assessment scores (mean r-.68); whereas regression coefficients for percent dominant taxon, modified Hilsenhoff's index, and EPT\\/Chironomidae abundance were generally lower (mean r-.42) than the above.

Wade K. Hoiland; Fred W. Rabe

1992-01-01

376

A geological reconnaissance across the Bitterroot Range and Clearwater Mountains in Montana and Idaho  

USGS Publications Warehouse

This report describes, in a preliminary way, a belt of country extending westward from the Bitterroot Valley, across the dividing range and the rugged mountains of the Clearwater system, down to the fertile plateaus which border the canyon of Snake River. It thus presents a reconnaissance section from western Montana across northern Idaho, and deals chiefly with areas about which, thus far, little geological information has been available.

Lindgren, Waldemar

1904-01-01

377

South Fork Clearwater River Habitat Enhancement, Nez Perce National Forest.  

SciTech Connect

In 1984, the Nez Perce National forest and the Bonneville Power Administration entered into a contractual agreement which provided for improvement of spring chinook salmon and summer steelhead trout habitat in south Fork Clearwater River tributaries. Project work was completed in seven main locations: Crooked River, Red River, Meadow Creek Haysfork Gloryhole, Cal-Idaho Gloryhole, Fisher Placer and Leggett Placer. This report describes restoration activities at each of these sites.

Siddall, Phoebe

1992-04-01

378

Stratigraphic data for wells at and near the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

A stratigraphic data base containing 230 stratigraphic units in 333 wells was constructed for deposits that make up the unsaturated zone and the Snake River Plain aquifer at and near INEL in eastern Idaho. Stratigraphic units, which were identified and correlated using data from numerous outcrops, 26 continuous cores, and 328 natural-gamma logs available in Dec. 1993, include 121 basalt-flow groups, 102 sedimentary interbeds, 6 andesite-flow groups, and 1 rhyolite dome. By volume, basalt flows make up about 90% of the deposits underlying most of this 890 mi{sup 2} area. Basalt, sediment, andesite, and rhyolite were identified from outcrops and cores that were selectively evaluated. Stratigraphic units were correlated using these data and natural-gamma logs. Best correlations were for basalt and sediment at Test Area North, the Naval Reactors Area, the Test Reactor Area, ICPP, and the Radioactive Waste Management Complex (RWMC), where most cores and 2/3 of the logs were obtained. Correlations range from good at the RWMC to uncertain the eastern half of the study area. A computer diskette containing the data is included.

Anderson, S.R.; Ackerman, D.J.; Liszewski, M.J. [Geological Survey, Washington, DC (United States); Frieburger, R.M. [EG and G Idaho, Inc., Idaho Falls, ID (United States)

1996-05-01

379

Shrub-Steppe Vegetation Trend, Middle Fork Salmon River, Idaho  

Microsoft Academic Search

populations occurred in the 1990s. This paper describes the shrub- steppe communities inside and adjacent to exclosures in the Middle Fork. Also presented is the current vegetative appearance at sites photographed in 1925, 1968, and 1988. Comparisons of plant species composition and characteristics, plus knowledge of grazing history, provide a basis for interpreting vegetation change and relationships to herbivore populations.

James M. Peek

2000-01-01

380

Allogenic sedimentary components of Bear Lake, Utah and Idaho  

USGS Publications Warehouse

Bear Lake is a long-lived lake filling a tectonic depression between the Bear River Range to the west and the Bear River Plateau to the east, and straddling the border between Utah and Idaho. Mineralogy, elemental geochemistry, and magnetic properties provide information about variations in provenance of allogenic lithic material in last-glacial-age, quartz-rich sediment in Bear Lake. Grain-size data from the siliciclastic fraction of late-glacial to Holocene carbonate-rich sediments provide information about variations in lake level. For the quartz-rich lower unit, which was deposited while the Bear River fl owed into and out of the lake, four source areas are recognized on the basis of modern fluvial samples with contrasting properties that reflect differences in bedrock geology and in magnetite content from dust. One of these areas is underlain by hematite-rich Uinta Mountain Group rocks in the headwaters of the Bear River. Although Uinta Mountain Group rocks make up a small fraction of the catchment, hematite-rich material from this area is an important component of the lower unit. This material is interpreted to be glacial fl our. Variations in the input of glacial flour are interpreted as having caused quasi-cyclical variations in mineralogical and elemental concentrations, and in magnetic properties within the lower unit. The carbonate-rich younger unit was deposited under conditions similar to those of the modern lake, with the Bear River largely bypassing the lake. For two cores taken in more than 30 m of water, median grain sizes in this unit range from ???6 ??m to more than 30 ??m, with the coarsest grain sizes associated with beach or shallow-water deposits. Similar grain-size variations are observed as a function of water depth in the modern lake and provide the basis for interpreting the core grain-size data in terms of lake level. Copyright ?? 2009 The Geological Society of America.

Rosenbaum, J. G.; Dean, W. E.; Reynolds, R. L.; Reheis, M. C.

2009-01-01

381

Wildlife Impact Assessment Palisades Project, Idaho, Final Report.  

SciTech Connect

The Habitat Evaluation Procedures were used to evaluate pre- and post-construction habitat conditions of the US Bureau of Reclamation's Palisades Project in eastern Idaho. Eight evaluation species were selected with losses expressed in the number of Habitat Units (HU's). One HU is equivalent to one acre of prime habitat. The evaluation estimated that a loss of 2454 HU's of mule deer habitat, 2276 HU's of mink habitat, 2622 HU's of mallard habitat, 805 HU's of Canada goose habitat, 2331 HU's of ruffed grouse habitat, 5941 and 18,565 HU's for breeding and wintering bald eagles, and 1336 and 704 HU's for forested and scrub-shrub wetland nongame species occurred as a result of the project. The study area currently has 29 active osprey nests located around the reservoir and the mudflats probably provide more feeding habitat for migratory shore birds and waterfowl than was previously available along the river. A comparison of flow conditions on the South Fork of the Snake River below the dam between pre- and post-construction periods also could not substantiate claims that water releases from the dam were causing more Canada goose nest losses than flow in the river prior to construction. 41 refs., 16 figs., 9 tabs.

Sather-Blair, Signe

1985-02-01

382

Idaho Library Laws, 1996-1997. Full Edition.  

ERIC Educational Resources Information Center

|This new edition of the "Idaho Library Laws" contains changes through the 1996 legislative session and includes "Idaho Code" sections that legally affect city, school-community or district libraries, or the Idaho State Library. These sections include the basic library laws in "Idaho Code" Title 33, Chapters 25, 26, and 27, additional sections of…

Idaho State Library, Boise.

383

Idaho Library Laws, 1999-2000. Full Edition.  

ERIC Educational Resources Information Center

|This new edition of the Idaho Library Laws contains changes through the 1998 legislative session and includes Idaho Code sections that legally affect city, school-community or district libraries, or the Idaho State Library. These sections include the basic library laws in Idaho Code Title 33, Chapters 25, 26, and 27, additional sections of the…

Idaho State Library, Boise.

384

Idaho Library Laws, 1996-1997. Full Edition.  

ERIC Educational Resources Information Center

This new edition of the "Idaho Library Laws" contains changes through the 1996 legislative session and includes "Idaho Code" sections that legally affect city, school-community or district libraries, or the Idaho State Library. These sections include the basic library laws in "Idaho Code" Title 33, Chapters 25, 26, and 27, additional sections of…

Idaho State Library, Boise.

385

Radiochemical and chemical constituents in water from selected wells and springs from the southern boundary of the Idaho National Engineering Laboratory to the Hagerman area, Idaho, 1996  

SciTech Connect

The US Geological Survey and the Idaho Department of Water Resources, in cooperation with the US Department of Energy, sampled 19 sites as part of the fourth round of a long-term project to monitor water quality of the Snake river Plain aquifer from the southern boundary of the Idaho National Engineering Laboratory to the Hagerman area. Water samples were collected and analyzed for selected radiochemical and chemical constituents. The samples were collected from nine irrigation wells, three domestic wells, two dairy wells, two springs, one commercial well, one stock well, and one observation well. Two quality-assurance samples also were collected and analyzed. Additional sampling at six sites was done to complete the third round of sampling. None of the radiochemical or chemical constituents exceeded the established maximum contaminant levels for drinking water. Many of the radionuclide- and inorganic-constituent concentrations were greater than their respective reporting levels.

Bartholomay, R.C.; Williams, L.M. [Geological Survey, Idaho Falls, ID (United States); Campbell, L.J. [Idaho Dept. of Water Resources, Boise, ID (United States)

1997-06-01

386

Regional geology of eastern Idaho and western Wyoming  

SciTech Connect

The first section, Regional Synthesis, consists of a single 53-page chapter entitled The track of the Yellowstone hot spot: Volcanism faulting, and uplift.'' The authors' approach is to interpret major features or regional geology as resulting in large part from the last 16 Ma of southwesterly migration by the North American plate over a stationary thermal plume in the mantle. Evidence that may relate to the Yellowstone hot spot model is presented under headings dealing with volcanic track of the hot spot, neotectonic faulting associated with the hot spot, and regional topographic anomalies which may have resulted from hot spot-induced uplift or subsidence. The second section of the book deals with the Idaho-Wyoming thrust belt. Each chapter is a separate article by different authors, so coverage is of selected topics in the Idaho-Wyoming thrust belt rather than a comprehensive overview. Extensional tectonics is the topic of the book's third section. Field investigations of two major structures, the Grand Valley fault and the Teton normal fault, are presented in chapters eight and nine, respectively. Chapter ten focuses on surficial gravity slide sheets that are well-exposed in the area, with particular emphasis on their structural features and mechanisms of emplacement. The final 90 pages of the book make up a four-chapter section that deals with the eastern Snake River plain (ESRP). Topical coverage is quite varied, ranging from details of Quaternary stratigraphy at one site to an overview of the eastern Snake River plain basaltic volcanism and an investigation of ignimbrites of the Heise volcanic field.

Link, P.K.; Kuntz, M.A.; Platt, L.B. (eds.)

1993-01-01

387

40 CFR 131.33 - Idaho.  

Code of Federal Regulations, 2010 CFR

...Corral Creek, Cow Creek, Edna Creek, Elk Creek, Emma Creek, Feather River, Fern...Beaver Creek, Big Canyon Creek, Big Elk Creek, Blanco Creek, Boundary Creek...American River, East Fork Crooked River, Elk Creek, Fivemile Creek, Flint Creek,...

2012-07-01

388

Idor Idaho-Oregon Earthscope Project: Deformation and Modification of a Steep Continental Boundary  

NASA Astrophysics Data System (ADS)

The IDOR project is an integrated study of the tectonic boundary between Precambrian North America and accreted terranes (island arcs of the Blue Mountains) in the Idaho-Oregon region. Its goal is to determine how the accretionary edge of the continental margin formed and was subsequently modified by deformation and magmatism. The margin contains unusually sharp isotopic gradients (Sr, O) representing the edge of Precambrian continental crust. This isotopic break correlates with a lithospheric-scale shear zone (western Idaho shear zone or WISZ) that formed in the mid Cretaceous in western Idaho. The WISZ is a major deformation zone characterized by a sequence of gneisses ~5 km thick and records transpressional deformation. The sharp isotopic gradient results, at least in part, from modification of the original Late Jurassic-Early Cretaceous suturing by the extreme shortening associated with the WISZ. The Idaho batholith, based on recent geochronology, was emplaced in multiple phases and is entirely east of the WISZ. The main batholith phase has no easily recognized mantle component, which contrasts markedly from other Cordilleran batholiths. Batholith emplacement occurred simultaneously with Sevier thrusting further east. Eocene (Challis) magmatism occurred throughout the region, both as localized centers and dike swarms. Miocene deformation and magmatism occurs throughout the region. A second sharp isotopic break is denoted by Miocene basaltic rocks, and is parallel to the sharp isotopic boundary in western Idaho (the exposed WISZ) but located ~120 km to the west. One hypothesis invoked to explain the repeated isotopic boundary is that a Sevier-age detachment cut and offset the WISZ, beheading it and leaving the WISZ’s root zone in eastern Oregon. Miocene magmatism, including the extrusion of the voluminous Columbia River basalts, appears localized on the sharp isotopic boundary in eastern Oregon. Extensional deformation, in contrast, appears partly localized on the WISZ in western Idaho. The IDOR project will investigate these issues through coordinated passive and active seismic (~500 km long line) deployments, geochemistry, geochronology, and structural geology.

Tikoff, B.; Hole, J. A.; Russo, R. M.; Vervoort, J. D.; Braudy, N.; Davenport, K.; Gaschnig, R. M.; Mocanu, V. I.

2010-12-01

389

Retrofitting the Streetlights in Boise, Idaho  

ScienceCinema

Boise, Idaho is using an energy efficiency grant to retrofit hundreds of streetlights throughout the downtown area with energy-efficient LED bulbs, which will save money and improve safety and local quality of life.

390

Idaho State Science, Engineering and Technology Project.  

National Technical Information Service (NTIS)

Science, engineering, and technology (SET) resources in Idaho were examined to determine their place in the executive policy process of the State. A survey of SET resources and their availability was made, uncovering a wide range of alternatives regarding...

P. M. Cunningham

1979-01-01

391

Idaho's Forest Resources, 2004-2009.  

National Technical Information Service (NTIS)

This report presents a summary of the most recent inventory information for Idahos forest lands. The report includes descriptive highlights and tables of area, number of trees, biomass, volume, growth, mortality, and removals. Most of the tables are organ...

C. Witt J. Menlove J. D. Shaw M. T. Thompson S. A. Goeking

2012-01-01

392

Mountain Home Municipal Airport, Mountain Home, Idaho.  

National Technical Information Service (NTIS)

The report describes the proposal for land acquisition, and realignment and improvement of a general utility runway, Mountain Home, Idaho. The adverse environmental effects are noise exposure, and air pollution. (Author)

1972-01-01

393

76 FR 31388 - Idaho Disaster #ID-00014  

Federal Register 2010, 2011, 2012, 2013

...for Public Assistance Only for the State of Idaho (FEMA-- 1987--DR), dated 05/20/2011. Incident: Flooding, landslides, and mudslides. Incident Period: 03/31/2011 through 04/11/2011. Effective Date: 05/20/2011. Physical...

2011-05-31

394

WATER QUALITY IN LAKE LOWELL, IDAHO  

EPA Science Inventory

Water quality in Lake Lowell (17050114) is suitable for irrigation; recreational use is limited by dense summer algal blooms. Dissolved oxygen concentrations and fecal coliform bacteria counts occasionally exceed Idaho Water Quality Standards for primary contact recreation water...

395

Minerals yearbook, 1992: Idaho. Annual report  

SciTech Connect

Nonfuel mineral production for Idaho in 1992 was valued at $306 million, an increase of 3% from that of 1991, according to the U.S. Bureau of Mines. Increased production values for molybdenum, construction sand and gravel, industrial sand and gravel, crushed stone, and vanadium more than offset a drop in the value for lead and silver. Idaho ranked 33d nationally for total mineral production value, unchanged from 1991.

Minarik, R.J.; Gillerman, V.S.

1992-01-01

396

CONVERSION OF THE IDWR\\/UI GROUND WATER FLOW MODEL TO MODFLOW: THE SNAKE RIVER PLAIN AQUIFER  

Microsoft Academic Search

ABSTRACT The ground-water flow model of the Snake River Plain aquifer developed and used by the Idaho Department of Water Resources (IDWR) and University of Idaho has been modified and calibrated several times since its creation in the 1970s. This report documents another step in the evolution of this model. The most recent changes to the model include the conversion

Gary S. Johnson; Donna M. Cosgrove; Sherry Laney; John Lindgren

397

Raptor Electrocutions and Associated Fire Hazards in the Snake River Birds of Prey National Conservation Area. Challenge Cost Share.  

National Technical Information Service (NTIS)

In 1999, we began an assessment of raptor electrocutions on power lines in and near the Snake River Birds of Prey National Conservation Area (NCA) in southwestern Idaho. The study will allow us to estimate electrocution rates, identify electrocution hazar...

R. N. Lehman J. S. Barrett

2000-01-01

398

Hispanics in Idaho: Concerns and Challenges. Idaho Human Rights Commission, Research Report.  

ERIC Educational Resources Information Center

|A study was done of the civil rights status of Hispanics in Idaho with respect to issues raised at a series of community hearings sponsored by the Idaho Human Rights Commission. Testimony included concerns about state and local hiring practices; the perceived need for bilingual state social service providers and educators; the need for outreach…

Mabbutt, Richard

399

Survey of Columbia River Basin Streams for Giant Columbia River Spire Snail Fluminicola columbiana and Great Columbia River limpet Fisherola nuttalli  

SciTech Connect

Surveys have confirmed the survival of both the giant Columbia River spire snail Fluminicola columbiana and the great Columbia River limpet Fisherola nuttalli in the Hanford Reach of the Columbia River, Washington State, as well as other sites in Washington, Oregon, and Idaho. A review of historical collection records suggests that both species exist in still other sites of the Columbia River Basin. At present, there is insufficient information to allow adequate appraisal of either species relative to possible federal or state listing as endangered or threatened species. The results of our studies suggest that additional undiscovered populations of both species exist. There is a relatively good chance that pristine habitat required by spire snails and limpets remains in 37 streams or portions of streams in Washington, Oregon, Idaho, and Montana (British Columbia was considered outside the project scope). For a thorough survey, visits to more than 600 sites will be required. 20 refs., 5 figs., 7 tabs.

Neitzel, D.A.; Frest, T.J. (Pacific Northwest Lab., Richland, WA (USA); Washington Univ., Seattle, WA (USA))

1989-10-01

400

Hatchery Evaluation Report/Rapid River Hatchery - Spring Chinook : An Independent Audit Based on Integrated Hatchery Operations Team (IHOT) Performance Measures.  

SciTech Connect

This report presents the findings of the independent audit of the Rapid River Hatchery (Spring Chinook). The hatchery is located in the lower Snake River basin near Riggins Idaho. The hatchery is used for adult collection egg incubation, and rearing of spring chinook. The audit was conducted in April 1996 as part of a two-year effort that will include 67 hatcheries and satellite facilities located on the Columbia and Snake River system in Idaho, Oregon, and Washington. The hatchery operating agencies include the U.S Fish and Wildlife Service, Idaho Department of Fish and Game, Oregon Department of Fish and Wildlife, and Washington Department of Fish and Wildlife.

Watson, Montgomery.

1996-05-01

401

Wildlife Inventory, Craig Mountain, Idaho.  

SciTech Connect

Wildlife distribution/abundance were studied at this location during 1993 and 1994 to establish the baseline as part of the wildlife mitigation agreement for construction of Dworshak reservoir. Inventory efforts were designed to (1) document distribution/abundance of 4 target species: pileated woodpecker, yellow warbler, black-capped chickadee, and river otter, (2) determine distribution/abundance of rare animals, and (3) determine presence and relative abundance of all other species except deer and elk. 201 wildlife species were observed during the survey period; most were residents or used the area seasonally for breeding or wintering. New distribution or breeding records were established for at least 6 species. Pileated woodpeckers were found at 35% of 134 survey points in upland forests; estimated densities were 0-0.08 birds/ha, averaging 0.02 birds/ha. Yellow warblers were found in riparian areas and shrubby draws below 3500 ft elev., and were most abundant in white alder plant communities (ave. est. densities 0.2-2. 1 birds/ha). Black-capped chickadees were found in riparian and mixed tall shrub vegetation at all elevations (ave. est. densities 0-0.7 birds/ha). River otters and suitable otter denning and foraging habitat were observed along the Snake and Salmon rivers. 15 special status animals (threatened, endangered, sensitive, state species of special concern) were observed at Craig Mt: 3 amphibians, 1 reptile, 8 birds, 3 mammals. Another 5 special status species potentially occur (not documented). Ecosystem-based wildlife management issues are identified. A monitoring plant is presented for assessing effects of mitigation activities.

Cassirer, E. Frances

1995-06-01

402

A proposed ground-water quality monitoring network for Idaho  

USGS Publications Warehouse

A ground water quality monitoring network is proposed for Idaho. The network comprises 565 sites, 8 of which will require construction of new wells. Frequencies of sampling at the different sites are assigned at quarterly, semiannual, annual, and 5 years. Selected characteristics of the water will be monitored by both laboratory- and field-analysis methods. The network is designed to: (1) Enable water managers to keep abreast of the general quality of the State 's ground water, and (2) serve as a warning system for undesirable changes in ground-water quality. Data were compiled for hydrogeologic conditions, ground-water quality, cultural elements, and pollution sources. A ' hydrologic unit priority index ' is used to rank 84 hydrologic units (river basins or segments of river basins) of the State for monitoring according to pollution potential. Emphasis for selection of monitoring sites is placed on the 15 highest ranked units. The potential for pollution is greatest in areas of privately owned agricultural land. Other areas of pollution potential are residential development, mining and related processes, and hazardous waste disposal. Data are given for laboratory and field analyses, number of site visits, manpower, subsistence, and mileage, from which costs for implementing the network can be estimated. Suggestions are made for data storage and retrieval and for reporting changes in water quality. (Kosco-USGS)

Whitehead, R. L.; Parliman, D. J.

1979-01-01

403

Ground-water aspects of the lower Henrys Fork region, Idaho  

USGS Publications Warehouse

The lower Henrys Fork region includes the plains and low benches between Ashton and the junction of Henrys Fork and Snake River in eastern Idaho. The northwestern and western parts of the area are part of the Snake River lava plain. The central part of the area is occupied by alluvial plains of the Snake, Teton, and Falls Rivers, and Henrys Fork. The southeastern part of the area is a bench (Rexburg Bench), chiefly on silicic and basaltic volcanic rocks, which rises gradually to mountain peaks southeast of the area. The basalt, and the sand and gravel under the alluvial plains are good aquifers and yield large amounts of water with small drawdowns. The silicic volcanic rocks and the interbedded ash, pyroclastics, and sedimentary deposits generally yield much less water than the basalt and alluvium.

Crosthwaite, E. J.; Mundorff, M. J.; Walker, E. H.

1967-01-01

404

77 FR 76475 - Environmental Management Site-Specific Advisory Board, Idaho National Laboratory  

Federal Register 2010, 2011, 2012, 2013

...Office, 1955 Fremont Avenue, MS- 1203, Idaho Falls, Idaho...Involvement Idaho Cleanup Project (ICP) Progress to Date Advanced...Current Idaho National Laboratory/ICP Public Involvement/ Communications...Waste Treatment Plant Update ICP End State Calcine...

2012-12-28

405

77 FR 10485 - Environmental Management Site-Specific Advisory Board, Idaho National Laboratory  

Federal Register 2010, 2011, 2012, 2013

...Department of Energy, Idaho Operations Office, 1955 Fremont Avenue, MS- 1203, Idaho Falls, Idaho 83415. Phone (208) 526-6518...Outreach Progress to Cleanup Status Idaho Cleanup Project (ICP) Workforce Reductions Advanced Mixed Waste Cleanup...

2012-02-22

406

76 FR 53888 - Environmental Management Site-Specific Advisory Board, Idaho National Laboratory  

Federal Register 2010, 2011, 2012, 2013

...Department of Energy, Idaho Operations Office, 1955 Fremont Avenue, MS- 1203, Idaho Falls, Idaho 83415. Phone (208) 526-6518...Treatment Project (AMWTP) Contract. Idaho Cleanup Project (ICP) Contract Extension. EM Organizational Changes....

2011-08-30

407

Analysis of Flood Hazards for the Materials and Fuels Complex at the Idaho National Laboratory Site  

SciTech Connect

Researchers at Pacific Northwest National Laboratory conducted a flood hazard analysis for the Materials and Fuels Complex (MFC) site located at the Idaho National Laboratory (INL) site in southeastern Idaho. The general approach for the analysis was to determine the maximum water elevation levels associated with the design-basis flood (DBFL) and compare them to the floor elevations at critical building locations. Two DBFLs for the MFC site were developed using different precipitation inputs: probable maximum precipitation (PMP) and 10,000 year recurrence interval precipitation. Both precipitation inputs were used to drive a watershed runoff model for the surrounding upland basins and the MFC site. Outflows modeled with the Hydrologic Engineering Centers Hydrologic Modeling System were input to the Hydrologic Engineering Centers River Analysis System hydrodynamic flood routing model.

Skaggs, Richard; Breithaupt, Stephen A.; Waichler, Scott R.; Kim, Taeyun; Ward, Duane L.

2010-11-01

408

Measurement of Sedimentary Interbed Hydraulic Properties and Their Hydrologic Influence near the Idaho Nuclear Technology and Engineering Center at the Idaho National Engineering and Environmental Laboratory  

USGS Publications Warehouse

Disposal of wastewater to unlined infiltration ponds near the Idaho Nuclear Technology and Engineering Center (INTEC), formerly known as the Idaho Chemical Processing Plant, at the Idaho National Engineering and Environmental Laboratory (INEEL) has resulted in the formation of perched water bodies in the unsaturated zone (Cecil and others, 1991). The unsaturated zone at INEEL comprises numerous basalt flows interbedded with thinner layers of coarse- to fine-grained sediments and perched ground-water zones exist at various depths associated with massive basalts, basalt-flow contacts, sedimentary interbeds, and sediment-basalt contacts. Perched ground water is believed to result from large infiltration events such as seasonal flow in the Big Lost River and wastewater discharge to infiltration ponds. Evidence from a large-scale tracer experiment conducted in 1999 near the Radioactive Waste Management Complex (RWMC), approximately 13 km from the INTEC, indicates that rapid lateral flow of perched water in the unsaturated zone may be an important factor in contaminant transport at the INEEL (Nimmo and others, 2002b). Because sedimentary interbeds, and possibly baked-zone alterations at sediment-basalt contacts (Cecil and other, 1991) play an important role in the generation of perched water it is important to assess the hydraulic properties of these units.

Perkins, Kim S.

2003-01-01

409

Chemical and Radiochemical Constituents in Water from Wells in the Vicinity of the Naval Reactors Facility, Idaho National Engineering and Environmental Laboratory, Idaho, 1997-98  

SciTech Connect

The US Geological Survey, in response to a request from the U.S Department of Energy's Pittsburgh Naval Reactors Office, Idaho Branch Office, sampled water from 13 wells during 1997-98 as part of a long-term project to monitor water quality of the Snake River Plain aquifer in the vicinity of the Naval Reactors Facility, Idaho National Engineering and Environmental Laboratory, Idaho. Water samples were analyzed for naturally occurring constituents and man-made contaminants. A total of 91 samples were collected from the 13 monitoring wells. The routine samples contained detectable concentrations of total cations and dissolved anions, and nitrite plus nitrate as nitrogen. Most of the samples also had detectable concentrations of gross alpha- and gross beta-particle radioactivity and tritium. Fourteen quality-assurance samples were also collected and analyzed; seven were field-blank samples, and seven were replicate samples. Most of the field blank samples contained less than detectable concentrations of target constituents; however some blank samples did contain detectable concentrations of calcium, magnesium, barium, copper, manganese, nickel, zinc, nitrite plus nitrate, total organic halogens, tritium, and selected volatile organic compounds.

R. C. Bartholomay; L. L. Knobel; B. J. Tucker; B. V. Twining (USGS)

2000-06-01

410

Socioeconomic Issues for the Bear River Watershed Conservation Area Land Protection Plan.  

National Technical Information Service (NTIS)

The Bear River Watershed Conservation Area (BRWCA) is located in the Bear River Watershed, a vast basin covering fourteen counties across three states. Located in Wyoming, Utah, and Idaho, the watershed spans roughly 7,500 squares miles (mi2): 1,500 mi2 i...

C. Huber C. C. Thomas L. Koontz W. Gascoigne

2012-01-01

411

Scaling analysis for a Savannah River reactor scaled model integral system  

Microsoft Academic Search

The Savannah River Laboratory has requested that the Idaho National Engineering Laboratory perform an analysis t