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Page 4863, results 121551 - 121575

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Changes in quality of ground water in the Lincoln area, Montana, 1974-79
Robert B. Leonard, Wayne A. Wood, Arnold J. Boettcher
1981, Open-File Report 80-1108
Water samples from representative shallow wells in the vicinity of Lincoln, Montana, were collected during March and June 1979 for analysis to evaluate changes in quality since 1974-75 and possible contamination by domestic or agricultural waste. All samples were suitable for drinking water with respect to the constituents tested. Tests...
Discharge data at water-quality monitoring stations in Arkansas, 1980 water year
R.K. Knott
1981, Open-File Report 82-157
Discharge data were computed for a network of water-quality monitoring stations operated by the Arkansas Department of Pollution Control and Ecology. Some of the sites are located at U.S. Geological Survey of U.S. Army Corps of Engineers daily-discharge stations, but most sites are at points where discharges are not regularly...
Geochemistry of spring water, southeastern Uinta Basin, Utah and Colorado
Briant A. Kimball
1981, Water Supply Paper 2074
The chemical quality of water in the southeastern Uinta Basin, Utah and Colorado, is important to the future development of the abundant oil-shale resources of the area. This report examines the observed changes in chemistry as water circulates in both shallow and deep ground-water systems. Mass-balance and mass- transfer calculations...
Description and preliminary interpretation of core CL-80-1, Clear Lake, Lake County, California
John D. Sims, Michael J. Rymer, James A. Perkins
1981, Open-File Report 81-751
Coring operations were conducted in the west basin of Clear Lake during July and August 1980 to produce a regional Quaternary reference section. A 177-m-long core (CL-80-1) was taken, which also augments and extends a previous study of eight shorter cores collected from Clear Lake in 1973. Core CL-80-1 was...
Phytoplankton productivity, respiration, and nutrient uptake and regeneration in the Potomac River, August 1977 - August 1978
B.E. Cole, D.D. Harmon
1981, Open-File Report 81-700
Rates of phytoplankton productivity, respiration, and nutrient uptake and regeneration are presented. These observations were made on the Potomac River estuary (POTE) during four cruises between August 1977 and August 1978. Four experimental methods were used: carbon uptake using carbon-14, carbon uptake and respiration by a pH method, productivity and...