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Page 5023, results 125551 - 125575

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Spectrographic and chemical analyses of whole-rock and insoluble-residue samples, Rolla 1° by 2° quadrangle, Missouri: Drill hole No. 22
Elwin L. Mosier, J.G. Viets, M. S. Erickson, S.K. McDanal
1980, Open-File Report 80-701
Geochemical studies of the Rolla, Mo., 1° x 2° quadrangle were begun in 1977 as part of a joint multidisciplinary study of the quadrangle by the U.S. Geological Survey and the Division of Geology and Land Survey, Missouri Department of Natural Resources. The study is to access the mineral-resource potential...
Water quality of Bear Creek basin, Jackson County, Oregon
Loren A. Wittenberg, Stuart W. McKenzie
1980, Open-File Report 80-158
Water-quality data identify surface-water-quality problems in Bear Creek basin, Jackson County, Oreg., where possible, their causes or sources. Irrigation and return-flow data show pastures are sources of fecal coliform and fecal streptococci bacteria and sinks for suspended sediment and nitrite-plus-nitrate nitrogen. Bear Creek and its tributaries have dissolved oxygen and...
Approximate water-level changes in wells in the Chicot and Evangeline aquifers in the Houston-Galveston region, Texas, 1977-80 and 1979-80
R.K. Gabrysch, C.E. Ranzau Jr.
1980, Open-File Report 80-337
This report, which was prepared in cooperation with the cities of Houston and Galveston, the Harris Galveston Coastal Subsidence Distract, and the Texas Department of Water Resources, presents data on water-level changes during 1977-80 and 1979-80 in the Chicot and Evangelina aquifers (figs. 1-4).  During these periods, ground water pumping...
Hurricane Frederic tidal floods of September 12–13, 1979, along the Gulf Coast, Gulf Breeze-Fort Barrancas quadrangles, Florida
Marvin A. Franklin, John C. Scott
1980, Hydrologic Atlas 640
Shown on the Gulf Breeze-Fort Barrancas topographic map are floodmark elevations and approximate areas flooded by Hurricane Frederic tides of September 12-13, 1979, along the shores of Big Lagoon, Pensacola Bay, Santa Rosa Sound, and the Gulf of Mexico from Seaglades eastward to Pensacola Beach, Florida. The still water elevations...
Basic elements of ground-water hydrology with reference to North Carolina
Ralph Carr Heath
1980, Open-File Report 80-44
This report was prepared as an aid to developing a better understanding of the groundwater resources of North Carolina. It consists of 46 essays grouped into five parts. The topics covered by these essays range from the most basic aspects of ground-water hydrology to the identification and correction of problems...
Mathematical model of the Tesuque aquifer system underlying Pojoaque River basin and vicinity, New Mexico
Glenn A. Hearne
1980, Open-File Report 80-1023
A three-dimensional digital model of ground-water flow was constructed to represent the dipping anisotropic beds of the Tesuque aquifer system underlying the Pojoaque River basin and vicinity, New Mexico. Simulations of steady-state conditions and historical ground-water withdrawals were consistent with observed data. The model was used to simulate the response...
Evaluation of planning alternatives for maintaining desirable dissolved-oxygen concentrations in the Willamette River, Oregon
David A. Rickert, F. A. Rinella, W. G. Hines, S. W. McKenzie
1980, Circular 715-K
For nearly half a century the Willamette River in Oregon experienced severe dissolved-oxygen problems related to large loads of organically rich waste waters from industries and municipalities. Since the mid-1950 's dissolved oxygen quality has gradually improved owing to low-flow augmentation, the achievement of basinwide secondary treatment, and the use...
Quality of ground water in Routt County, northwestern Colorado
Kenneth J. Covay, R.L. Tobin
1980, Water-Resources Investigations Report 80-956
Chemical and bacteriological data were collected to describe the quality of water from selected geologic units in Routt County, Colo. Calcium bicarbonate was the dominant water-chemistry type; magnesium, sodium, and sulfate frequently occurred as codominant ions. Specific conductance values ranged from 50 to 6,000 micromhos. Mean values of specific conductance,...
Waterfowl status report, 1976
1980, Special Scientific Report - Wildlife 227
This report contains information from the 1975-76 midwinter waterfowl survey, the 1976 waterfowl breeding population and production surveys, and the waterfowl harvest surveys for the 1975-76 hunting season. This information was provided by the U.S. Fish and Wildlife Service, the Canadian Wildlife Service, and various cooperating State wildlife conservation agencies....
Waterfowl status report, 1975.
James R. Goldsberry, Sharon L. Rhoades, Lonnie D. Schroeder, Morton M. Smith
1980, Special Scientific Report - Wildlife 226
No abstract available....