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Page 439, results 10951 - 10975

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Concentrations of mercury and other trace elements in walleye, smallmouth bass, and rainbow trout in Franklin D. Roosevelt Lake and the upper Columbia River, Washington, 1994
M.D. Munn, S.E. Cox, C.J. Dean
1995, Open-File Report 95-195
Three species of sportfish--walleye, smallmouth bass, and rainbow trout--were collected from Franklin D. Roosevelt Lake and the upstream reach of the Columbia River within the state of Washington, to determine the concentrations of mercury and other selected trace elements in fish tissue. Concentrations of total mercury in walleye fillets ranged...
Ground-water flow, geochemistry, and effects of agricultural practices on nitrogen transport at study sites in the Piedmont and Coastal Plain physiographic provinces, Patuxent River Basin, Maryland
Randolph E. McFarland
1995, Open-File Report 94-507
The effects of agricultural practices on nitrogen transport were assessed at two 10-acre study sites in the Patuxent River Basin, Maryland, during 1986- 92. Nitrogen load was larger in ground water than in surface runoff at both sites. Denitrification and (or) long traveltimes of ground water at the study site...
Statistical summaries of surface-water hydrologic data collected in the Suwannee River Water Management District, Florida, 1906-93
M.A. Franklin, G. L. Giese, P.R. Mixson
1995, Open-File Report 94-709-W
Since 1906, hydrologic data have been collected systematically on streams and lakes in the Suwannee River Water Management District (SRWMD) by the U.S. Geological Survey (USGS), the SRWMD, and other agencies. Records of stream discharge and stream and lake stage in the SRWMD (fig. 1), collected largely in cooperation with...
Results of geophysical surveys of glacial deposits near a former waste-disposal site, Nashua, New Hampshire
Joseph D. Ayotte, Tracy H. Dorgan
1995, Open-File Report 95-142
Geophysical investigations were done near a former waste-disposal site in Nashua, New Hampshire to determine the thickness and infer hydraulic characteristics of the glacial sediments that underlie the area. Approximately 5 miles of ground- penetrating radar (GPR) data were collected in the study area by use of dual-80 Megahertz antennas....
Multichannel seismic-reflection profiling on the R/V Maurice Ewing during the Los Angeles Region Seismic Experiment (LARSE), California
Thomas M. Brocher, Robert W. Clayton, Kim D. Klitgord, Robert G. Bohannon, Ray Sliter, John K. McRaney, James V. Gardner, J.B. Keene
1995, Open-File Report 95-228
This report describes the acquisition of deep-crustal multichannel seismic-reflection data in the Inner California Borderland aboard the R/V Maurice Ewing, conducted in October 1994 as part of the Los Angeles Regional Seismic Experiment (LARSE). LARSE is a cooperative study of the crustal structure of southern California involving earth scientists from...
Collection of short papers on Beaver Creek watershed studies in West Tennessee, 1989-94
W. Harry. Doyle (compiler), Eva G. Baker
1995, Open-File Report 95-156
In 1989, the U.S. Geological Survey began a scientific investigation to evaluate the effect of agricultural activities on water quality and the effectiveness of agricultural best management practices in the Beaver Creek watershed, West Tennessee. The project is being conducted jointly with other Federal, State, county agencies, the farming community,...
Characterizing water quality in the North Fork-Fall Creek Hydrologic Unit Area, Tennessee
Thomas Duane Byl, H. C. Mattraw
1995, Open-File Report 95-372
The North Fork-Fall Creek Watershed in Bedford County, Tennessee is a karst terrain with a complex interconnection between ground water and the surface water-drainage network. Multiple sources of agricultural and domestic contamination make the effective design of best management practices difficult. Ongoing investigations by the U.S. Geological Survey and several...
Cerro Prieto geothermal field, Mexico; chemical analyses and other data for 58 samples collected in 1977-1979
James D. Bliss, editor(s)
1995, Open-File Report 95-514
This report releases the results of selected chemical analyses by the USGS of fluids collected from geothennal power production wells at the Cerro Prieto Geothennal Field, Mexico. Cerro Prieto, the world's largest producing hot-water geothennal field, is located 32 km southeast of Mexicali, Baja California. Comision Federal de Electricidad de...
Benthic macrofauna data for San Francisco Bay, California, September 1986
Laurence E. Schemel, J.K. Thompson, J.G. Harmon, B. T. Yost
1995, Open-File Report 95-291
Benthic macrofauna were collected during September 1986 to evaluate locations for long-term monitoring stations as part of the U.S. Geological Survey Regional Effects Monitoring Program in San Francisco Bay, California. Three to ten replicate samples were collected with a modified Van Veen sampler (0.05 m2 area) at ten locations. One...
Geohydrology of the Flints Pond Aquifer, Hollis, New Hampshire
Joseph D. Ayotte, Tracy H. Dorgan
1995, Open-File Report 95-363
Flints pond has been subjected to accelerated eutrophication as a result of watershed development (building of new homes and conversion of summer cottages into permanent homes) since the 1930's. Ground-water flow is the primary recharge and discharge mechanism for Flints Pond. The saturated thickness, transmissive properties, and altitude of the...