Water Resources Division, U.S. Geological Survey
1980, Land Use and Land Cover 184
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Publication Extents
Not all publications have extents, not all extents are completely accurateWater Resources Division, U.S. Geological Survey
1980, Land Use and Land Cover 117
Water Resources Division, U.S. Geological Survey
1980, Land Use and Land Cover 191
Water Resources Division, U.S. Geological Survey
1980, Land Use and Land Cover 95
Water Resources Division, U.S. Geological Survey
1980, Land Use and Land Cover 125
Water Resources Division, U.S. Geological Survey
1980, Land Use and Land Cover 170
William F. Lichtler, David I. Stannard, Edwin Kouma
1980, Water-Resources Investigations Report 80-93
Large withdrawals of ground water for irrigation are causing progressive declines of ground-water levels in some areas of Nebraska. An investigation was conducted to determine the technical feasibility of artificially recharging aquifers through wells and through surface spreading by means of impoundments, pits, and canals. Information gained from a literature...
David J. Lang, David Grason
1980, Water-Resources Investigations Report 80-78
The U.S. Geological Survey is monitoring the water quality of three major tributaries to Chesapeake Bay at their fall lines to obtain estimates of constituent inputs potentially available to the bay. The monitoring sites are: Susquehanna River at Conowingo, Md.; Potomac River at Washington, D.C.; and James River at Cartersville,...
Larry F. Land
1980, Water-Resources Investigations Report 80-44
J. R. Knapton, Rodger F. Ferreira
1980, Water-Resources Investigations Report 80-40
Since 1974 a network of water-quality stations has been operated in the coal area of southeastern Montana. This report updates a previous report with 2 years of additional data collection and presents statistics and regression equations for water-quality variables. The most apparent feature of the study is the variability of...
J. R. Knapton, M.A. Jacobson
1980, Water-Resources Investigations Report 80-76
Modification of sampling programs at some water-quality stations in the Missouri River basin in Montana has eliminated the means by which solute loads have been directly obtained in past years. To compensate for this loss, water-quality and streamflow data were statistically analyzed and solute loads were simulated using computer techniques.Functional...
John M. Klein, Wesley L. Bradford
1980, Water-Resources Investigations Report 80-48
Nitrogen in the unsaturated soil zone in the Highland-East Highlands area of San Bernardino County, Calif., has been suspected as the source of nitrate in water from wells. Plans to recharge the local aquifers with imported surface water would raise the water table and intercept that nitrogen. This study was...
Holly Clyde Wagner, M. C. Wiley
1980, Open-File Report 80-548
No abstract available....
Kaye M. Walz
1980, Open-File Report 80-906
Art F. White, H.C. Claassen, Larry V. Benson
1980, Water Supply Paper 1535-Q
Geochemistry of ground water associated with the Tertiary tuffs within Rainier Mesa, southern Nevada, was investigated to determine the relative importance of glass dissolution in controlling water chemistry. Water samples were obtained both from interstitial pores in core sections and from free-flowing fractures. Cation com- positions showed that calcium and...
Gary A. Younse
1980, Open-File Report 80-318
No abstract available....
C. D. Farrar
1980, Water-Resources Investigations Report 80-59
A water-quality monitoring network is proposed to detect the presence of and trace the movement of radioisotopes in the hydrologic system in the vicinity of the Vallecitos Nuclear Center. The source of the radioisotopes is treated industrial wastewater from the Vallecitos Nuclear Center that is discharged into an unnamed tributary...
Wayne R. Berkas
1980, Water-Resources Investigations Report 80-27
Statistical analysis on water-quality parameters from James River upstream and downstream from the confluence of Wilsons Creek shows a significant difference for all parameters except temperature and dissolved silica at the 0.05 probability level. Regression analysis shows correlation for discharge with dissolved sodium, dissolved chloride, and dissolved potassium, and for...
William S. Dockins, G.J. Olson, Gordon A. McFeters, S.C. Turbak, Roger W. Lee
1980, Water-Resources Investigations Report 80-9
Ground water in southeastern Montana was investigated to determine if sulfide production was bacterially mediated. Sulfate—reducing bacteria were detected in 25 of 26 ground—water samples in numbers ranging from 2.0 x 101 to greater than 2.4 x 104 bacteria per 100 milliliters. Stable sulfur isotope fractionation studies indicate a biological...
Jeffrey C. Wynn, W.P. Hasbrouck
1980, Open-File Report 80-936
Bruce Wright
1980, Open-File Report 80-170
Thomas S. Ahlbrandt, S.G. Fryberger, John H. Hanley, J. Platt Bradbury
1980, Professional Paper 1120-A-C
No abstract available....
Water Resources Division, U.S. Geological Survey
1980, Water Data Report GA-80-1
Water resources data for the 1980 water year for Georgia consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and ground-water levels. This report contains discharge records for 105 gaging stations; stage for 9 gaging stations; stage and contents for 17...
C. W. Stover, B.G. Reagor, S. T. Algermissen
1980, Miscellaneous Field Studies Map 1228
The earthquake data shown on this map and listed in table 1 are a list of earthquakes that were originally used in preparing the Seismic Risk Studies in the United States in the United States (Algermissen, 1969) which have been recompiled and updated through 1977. These data have been reexamined...
Charles E. Wassinger, Douglas M. Koza
1980, Open-File Report 80-490
No abstract available....