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Page 4722, results 118026 - 118050

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Not all publications have extents, not all extents are completely accurate
Drainage areas in the James River basin in eastern South Dakota
Rick D. Benson, M.E. Freese, Frank D. Amundson, V.J. Wipf
1987, Open-File Report 87-572
The James River of eastern South Dakota contains an important surface-water supply for the agricultural economy within the basin. Proposed water-resource development has prompted numerous hydrologic studies of the James River. To aid in planning for future development, the map delineates all named stream basins, and all unnamed basins larger...
Analysis and interpretation of water-quality trends in major U.S. rivers, 1974-81
Richard A. Smith, Richard B. Alexander, M. Gordon Wolman
1987, Water Supply Paper 2307
Water-quality records from two nationwide sampling networks are now of sufficient length to permit nationally consistent analysis of long-term water-quality trends at more than 300 locations on major U.S. rivers. Observed trends in 24 water-quality measures for the period 1974--81 provide evidence of both improvement and deterioration in stream quality...
Data on ground-water quality for the Winnemucca 1° x 2° quadrangle, central Nevada
Alan H. Welch, Rhea P. Williams
1987, Open-File Report 85-648-G
Water quality data for groundwater has been compiled for the Winnemucca 1 degree x 2 degree quadrangle which covers a portion of central Nevada. Chemical characteristics of the water are shown on a map (at a scale of 1:250,000) and on trilinear diagrams for the major ions. The data for...
Schlumberger sounding results near Twin Falls, Idaho, 1987
R.J. Bisdorf
1987, Open-File Report 87-166
The U.S. Geological Survey has made 85 Schlumberger soundings near Twin Falls, Idaho since 1982. These soundings were made in support of the Water Resources Division Regional Aquifer-Systems Analysis study.  The soundings were made to estimate the thickness of the basalt, which is the main aquifer in this area....
Directory of member organizations of the National Water Data Exchange (NAWDEX)
C.D. Blackwell
1987, Open-File Report 87-469
The National Water Data Exchange (NAWDEX) is a national confederation of water-oriented organizations working together to improve access to water data. It consists of member organizations from all sectors of the water data community. This Directory provides the names, addresses, and telephone numbers of all NAWDEX member organizations and their...
U.S. Geological Survey program on toxic waste--ground-water contamination; proceedings of the Third technical meeting, Pensacola, Florida, March 23-27, 1987
Bernard J. Franks, editor(s)
1987, Open-File Report 87-109
Problems of ground-water contamination from leaking surface impoundments are common in surficial aquifers, and are a subject of increasing concern and attention. A potentially widespread contamination problem involves organic chemicals used in wood-preserving processes. Creosote is the most extensively used industrial preservative in the United States today, with more than...
Discharge ratings for control gates at Mississippi River lock and dam 20, Canton, Missouri
A.J. Heinitz
1987, Water-Resources Investigations Report 87-4149
The water levels of the navigation pools on the Mississippi River are maintained by the operation of tainter and roller gates at the locks and dams. Discharge ratings for the gates on Lock and Dam 20, at Canton, Missouri, were developed from current meter discharge measurements made in the forebays...
Ground-water levels in Wyoming, 1976 through 1985
H.I. Kennedy, C.B. Oberender
1987, Open-File Report 87-456
Groundwater levels are measured periodically in a network of 84 observation wells in Wyoming, mostly in areas where groundwater is used in large quantities for irrigation or municipal purposes. The program is conducted by the U.S. Geological Survey in cooperation with the Wyoming State Engineer and the Wyoming Economic Development...