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Page 1813, results 45301 - 45325

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Availability and suitability of municipal wastewater information for use in a National Water-Quality Assessment; a case study of the upper Illinois River basin in Illinois, Indiana, and Wisconsin
John S. Zogorski, S.F. Blanchard, R.D. Romack, F. A. Fitzpatrick
1990, Open-File Report 90-375
The availability and suitability of existing information on municipal wastewater-treatment practices and effluent characteristics for use in a national water-quality assessment were evaluated. The information will be used to determine the effects of changes in wastewater-treatment practices on stream quality and ecosystem health. A large amount of information on treatment...
Environmental changes in the Tule Lake basin, Siskiyou and Modoc Counties, California, from 3 to 2 million years before present
David P. Adam, J. Platt Bradbury, Hugh J. Rieck, Andrei M. Sarna-Wojcicki
1990, Bulletin 1933
Pollen and diatom analyses of a core from the town of Tulelake, Siskiyou County, California, for the period between 3 and 2 Ma reveal a paleoclimatic and paleolimnologic sequence recording a long, warm time interval that lasted from about 2.9 to 2.6 Ma and had a short, cooler interval within...
Flow characteristics of streams that drain the Fort Apache and San Carlos Indian reservations, east-central Arizona, 1930-86
Stanley Baldys, J.A. Bayles
1990, Water-Resources Investigations Report 90-4053
Streamflow characteristics of the Salt River and Gila River basins in the Fort Apache and San Carlos Indian Reservations, were studied in response to pending adjudication of water resources in those basins. Statistical summaries were compiled for 28 streamflow-gaging stations in and near the reservation. Mean annual streamflow for 1930-86...
Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in and near Stillwater Wildlife Management Area, Churchill County, Nevada, 1986-87
R.J. Hoffman, R.J. Hallock, T.G. Rowe, M.S. Lico, H.L. Burge, S.P. Thompson
1990, Water-Resources Investigations Report 89-4105
A reconnaissance was initiated in 1986 to determine whether the quality of irrigation-drainage water in and near the Stillwater Wildlife Management Area, Nevada, has caused or has potential to cause harmful effects on human health, fish, wildlife, or other beneficial uses of water. Samples of surface and groundwater, bottom sediment,...
Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86
J. L. Barker, E. C. Witt III
1990, Water-Resources Investigations Report 89-4113
Five headwater streams in the Laurel Hill area in southwestern Pennsylvania were investigated from September 1983 through February 1986 to determine possible effects of acidic precipitation on water quality. Precipitation in the Laurel Hill area is among the most acidic in the Nation, with a mean volume-weighted pH of 4.06....
Cost effectiveness of the stream-gaging program in Nevada
F.E. Arteaga
1990, Water-Resources Investigations Report 87-4213
The stream-gaging network in Nevada was evaluated as part of a nationwide effort by the U.S. Geological Survey to define and document the most cost-effective means of furnishing streamflow information. Specifically, the study dealt with 79 streamflow gages and 2 canal-flow gages that were under the direct operation of Nevada...
Geohydrologic characteristics and simulated response to pumping stresses in the Sparta aquifer in East-Central Arkansas
Daniel J. Fitzpatrick, John M. Kilpatrick, Harry McWreath
1990, Water-Resources Investigations Report 88-4201
A finite difference digital model of the Sparta aquifer system in Arkansas was developed to aid in assessing the geohydrologic characteristics of the aquifer as well as the impact of withdrawals on water-level declines in the aquifer. The model consists of two layers. The Cockfield aquifer, represented by layer 1,...
Geohydrology and simulated effects of large ground-water withdrawals on the Mississippi River alluvial aquifer in northwestern Mississippi
D. M. Sumner, Billie E. Wasson
1990, Water Supply Paper 2292
The 7,000-square-mile Mississippi River alluvial plain in northwestern Mississippi, locally known as the 'Delta,' is underlain by a prolific aquifer that yielded about 1,100 million gallons per day of water to irrigation wells in 1983. About 20 feet of clay underlying the Delta land surface commonly is underlain by about...
Simulation of ground-water flow in aquifers in Cretaceous rocks in the central Coastal Plain, North Carolina
J. L. Eimers, W.L. Lyke, A. R. Brockman
1990, Water-Resources Investigations Report 89-4153
The principal sources of water-supply in Cretaceous rocks in the central Coastal Plain of North Carolina are the Peedee, Black Creek, and upper Cape Fear aquifers. Ground-water withdrawals from these aquifers have increased from about 0.25 million gallons per day in 1910 to over 29 million gallons per day in...