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Page 4942, results 123526 - 123550

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Chemical quality of ground water in Yolo and Solano counties, California
K. D. Evenson
1985, Water-Resources Investigations Report 84-4244
Ground-water-quality conditions were investigated in Yolo and Solano Counties during the summers of 1980 and 1981 by sampling 188 representative wells. Chemical analyses of the water samples show that the ground water is suitable for domestic and most agricultural purposes. Water samples from wells near the Sacramento River generally contained...
Determination of roughness coefficients for streams in Colorado
R.D. Jarrett
1985, Water-Resources Investigations Report 85-4004
Most hydraulic calculations of flow in channels and overbank areas require an evaluation of flow resistance, generally expressed as Manning 's roughness coefficient. The degree of roughness depends on many factors. The report summarizes and relates several methods of estimating roughness and presents additional channel-roughness verification data on higher-gradient streams...
Water Resources Research Grant Program project descriptions, fiscal year 1985
U.S. Geological Survey Branch of Research Grants and Contracts
1985, Open-File Report 85-687
Information on each of the 24 projects funded by the U.S. Geological Survey in FY 1985 under section 105 of Public Law 93-242 (the Water Resources Research Act of 1984) is presented, including the grant number, organization, the period of performance, and a brief description of the work to be...
The hydrologic bench-mark program; a standard to evaluate time-series trends in selected water-quality constituents for streams in Georgia
G. R. Buell, S.C. Grams
1985, Water-Resources Investigations Report 84-4318
Significant temporal trends in monthly pH, specific conductance, total alkalinity, hardness, total nitrite-plus-nitrite nitrogen, and total phosphorus measurements at five stream sites in Georgia were identified using a rank correlation technique, the seasonal Kendall test and slope estimator. These sites include a U.S. Geological Survey Hydrologic Bench-Mark site, Falling Creek...
Streamflow and sediment data collected at seven stream-gaging stations in the James River basin downstream from Forestburg, South Dakota, from October 1, 1982 to September 30, 1983
J.R. Little
1985, Open-File Report 85-156
A compilation of streamflow and suspended-sediment data collected from October 1, 1982, to September 30, 1983, at seven gaging stations in the James River basin downstream from Forestburg, South Dakota, is presented in tabular and graphic form. Three of the gaging stations are on the main stem and four are...
Ground-water levels in Arkansas, spring 1985
Joe Edds, J.L. Spencer
1985, Open-File Report 85-478
The report contains 622 ground-water level measurements made in observation wells in Arkansas in the spring of 1985. In addition , the report contains well hydrographs relating to the Quaternary aquifer and the Sparta Sand aquifers, the most important aquifers with respect to ground-water availability and use in Arkansas. (USGS)...
Generalized configuration of the base of the High Plains Aquifer in Kansas
Kenneth R. Watts, Lloyd E. Stullken
1985, Open-File Report 81-344
The High Plains aquifer in Kansas is part of a regional system that extends from South Dakota to Texas. In Kansas, the aquifer underlies an area of 30,900 square miles in the western and south-central part. The aquifer is a hydraulically connected aggregation of unconsolidated water-bearing deposits. The High Plains...
Hydrologic data for urban studies in the Houston, Texas, metropolitan area, 1981
Fred Liscum
1985, Open-File Report 85-163
Hydro! oqic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas-Fort Worth and San Antonio areas. The U.S. Geological Survey, in cooperation with the city of Houston, began studies...
Effects of wetlands on quality of runoff entering lakes in the Twin Cities Metropolitan Area, Minnesota
R. G. Brown
1985, Water-Resources Investigations Report 85-4170
Four wetlands were compared with respect to their effectiveness in decreasing suspended solids and nutrient concentrations in runoff to lakes immediately downstream from the wetlands. An artificial impoundment in one of the wetlands increased settling of suspended solids. A decrease of nutrients in this wetland was probably the result of...