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Page 3604, results 90076 - 90100

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Water withdrawal and use in Maryland, 1992-93
J. C. Wheeler
1997, Water-Resources Investigations Report 96-4314
During 1992, about 1,430 million gallons per day (Mgal/d) of freshwater was withdrawn from surface-water and ground-water sources in Maryland. Total freshwater withdrawals increased during 1993 to about 1,480 Mgal/d. Saline surface- water withdrawals for cooling condensers increased from about 5,350 Mgal/d during 1992 to...
Significant metalliferous and selected non-metalliferous lode deposits and placer districts for the Russian Far East, Alaska, and the Canadian Cordillera
Warren J. Nokleberg, Thomas K. Bundtzen, Kenneth M. Dawson, Roman A. Eremin, Nikolai A. Goryachev, Richard D. Koch, Vladimir V. Ratkin, Ilya S. Rozenblum, Vladimir I. Shpikerman, Yuri F. Frolov, Mary E. Gorodinsky, Vladimir D. Melnikov, Michael F. Diggles, Nikolai V. Ognyanov, Eugene D. Petrachenko, Rimma I. Petrachenko, Anany I. Pozdeev, Katherina V. Ross, Douglas H. Wood, Donald Grybeck, Alexander I. Khanchuk, Lidiya I. Kovbas, Ivan Ya. Nekrasov, Anatoly A. Sidorov
1997, Open-File Report 96-513-B
No abstract available....
Hydrogeologic investigation of the Malvern TCE Superfund Site, Chester County, Pennsylvania
Ronald A. Sloto
1997, Water-Resources Investigations Report 96-4286
The Malvern TCE Superfund Site, a former solvent recycling facility that now stores and sells solvents, consists of a plant and disposal area, which are approximately 1,900 ft (feet) apart. The site is underlain by an unconfined carbonate bedrock aquifer in which permeability has been enhanced in places by solution....
Introgression and susceptibility to disease in a wild population of rainbow trout
K.P. Currens, A.R. Hemmingsen, R.A. French, D.V. Buchanan, C.B. Schreck, H.W. Li
1997, North American Journal of Fisheries Management (17) 1065-1078
We examined susceptibility of wild rainbow trout Oncorhynchus mykiss from the Metolius River, a tributary of the Deschutes River, Oregon, to genetic introgression and cerato myxosis as a result of stocking nonnative hatchery rainbow trout. Ceratomyxa shasta, an enzootic myxosporean parasite that can be lethal to nonnative hatchery rainbow trout, might have been...
Episodic acidification and changes in fish diversity in Pennsylvania headwater streams
R.M. Heard, W.E. Sharpe, R.F. Carline, William G. Kimmel
1997, Transactions of the American Fisheries Society (126) 977-984
Current water chemistry and fish communities in 70 Pennsylvania streams were compared with historical records to determine whether fish species richness had declined and, if so, the possible role of acidification. First‐, second‐, and third‐order streams were selected, and stream sites sampled during the 1961–1971 survey were...
Results of the application of seismic-reflection and electromagnetic techniques for near-surface hydrogeologic and environmental investigations at Fort Bragg, North Carolina
M. T. Meyer, J.M. Fine
1997, Water-Resources Investigations Report 97-4042
As part of the U.S. Geological Survey's Resource Conservation and Recovery Act, Facilities Investigations at Fort Bragg, North Carolina, selected geophysical techniques were evaluated for their usefulness as assessment tools for determining subsurface geology, delineating the areal extent of potentially contaminated landfill sites, and locating buried objects and debris of...
Effects of highway deicing chemicals on shallow unconsolidated aquifers in Ohio, interim report, 1988-93
A.L. Jones, B.N. Sroka
1997, Water-Resources Investigations Report 97-4027
Effects of the application of highway deicing chemicals during winter months on ground- water quality are being studied by the U.S. Geological Survey in cooperation with the Ohio Department of Transportation and the Federal Highway Administration. Eight sites throughout the State were selected along major undivided highways where drainage is...
Ground-water development and the effects on ground-water levels and water quality in the town of Atherton, San Mateo County, California
Loren F. Metzger, John L. Fio
1997, Water-Resources Investigations Report 97-4033
The installation of at least 100 residential wells in the town of Atherton, California, during the 198792 drought has raised concerns about the increased potential for land subsidence and salt water intrusion. Data were collected and monitor ing networks were established to assess current processes and to monitor future conditions...