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Page 4936, results 123376 - 123400

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Data on surface-water quality and quantity, Truckee River system, Nevada and California, 1979-81
R.J. La Camera, R.J. Hoffmann, J. O. Nowlin, L. H. Smith, S.M. Lima
1985, Open-File Report 84-238
Selected hydrologic data were collected between May 1979 and October 1981 at 59 sites on the Truckee River, 10 sites on selected tributaries and smaller diversions, and 9 sites on the Truckee Canal. The data were collected in support of the water-quality and hydrologic investigation components of the Truckee-Carson River-Quality...
Approximate potentiometric surface for the aquifer unit A4, southeastern coastal plain aquifer system of the United States, prior to development
V.A. Stricker, Walter R. Aucott, Robert E. Faye, John S. Williams, Michael J. Mallory
1985, Water-Resources Investigations Report 84-4364
A generalized potentiometric surface map prepared as part of a regional analysis of sand aquifer system defines the altitude of water levels under pre-development conditions for aquifer unit A4, the lowermost group of aquifers in the sand aquifer system. Aquifer unit A4, consisting of Upper and Lower Cretaceous sands, is...
Calibration procedure for a daily flow model of small watersheds with snowmelt runoff in the Green River coal region of Colorado
J. M. Norris, R. S. Parker
1985, Water-Resources Investigations Report 83-4263
A calibration procedure was developed for the U.S. Geological Survey 's Precipitation-Runoff Modeling System for watersheds in which snowmelt is the major contributor to runoff. The model uses daily values of air temperature and precipitation as input and the output is mean daily discharge. The procedure appears sufficient to calibrate...
Survey of Fena Reservoir, Island of Guam: Limnological reconnaissance
J. W. LaBaugh
1985, Water-Resources Investigations Report 83-4241
During the limnological reconnaissance of Fena Reservoir, samples of the water columns and bottom sediment were obtained and analyzed at five locations within the reservoir. Major ion analyses of filtered surface water indicated that calcium and bicarbonate are the dominant cation and anion in the reservoir. Thermal stratification was recorded...
Delineation of the outcrop of the Edwards Aquifer hydrologically associated with Barton Springs in the Austin area, Texas
Ann F. Ardis, D.L. Slagle, Fred R. Snyder
1985, Open-File Report 85-643
This report, prepared in cooperation with the City of Austin, delineates the outcrop of the Edwards aquifer that is hydrologically associated with Barton Springs.  The Edwards is a regional aquifer system in central Texas that extends in a narrow belt from Kinney County to Bell County (index map) and lies...
Low-flow data for selected partial-record stations in Ohio
R.R. Schwartz
1985, Open-File Report 84-824
Low-flow characteristics for 67 low-flow partial-record stations defined in Ohio since the 1978 water year are presented. Low-flow characteristics presented ar the 7-day 10-year low flow , the 7-day 2-year low flow, and the flow equalled or exceeded 90 percent of the time. The 7-day 10-year low-flow ranged from 0...
Map showing abundance and distribution of arsenic in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Charles L. Whittington, Reinhard W. Leinz, David J. Grimes
1985, Miscellaneous Field Studies Map 1383-J
Stream-sediment sampling in the Medford 1o x 2o quadrangle was undertaken to provide to aid in assessment of the mineral resource potential of the quadrangle. This map presents data on the abundance and distribution of copper in the oxide residues (oxalic-acid leachates) of stream sediments and in the minus-0.18-mm sieve fraction...
Ground-water data for Georgia, 1984
J.S. Clarke, S.A. Longsworth, K.W. McFadden, M.F. Peck
1985, Open-File Report 85-331
Continuous water-level records from 155 wells and more than 800 water-level measurements made in Georgia during 1984 provide the basic data for this report. Selected wells illustrate the effects that changes in recharge and pumping have had on the various ground-water resources in the State. Daily mean water levels are...
Ground-water quality data from the northern Mississippi embayment; Arkansas, Missouri, Kentucky, Tennessee, and Mississippi
J. V. Brahana, T. O. Mesko, J.F. Busby, T. F. Kraemer
1985, Open-File Report 85-683
Groundwater quality data were collected from 42 selected wells in the McNairy-Nacatoch-Ripley and the lower Wilcox aquifers of the northern Mississippi embayment. The study is part of the Gulf Coast Regional Aquifer System Analysis (GC RASA) study; the data will be used for geochemical modeling of mineral saturation and mass...
Methods for determination of inorganic substances in water and fluvial sediments
Marvin J. Fishman, Linda C. Friedman, editor(s)
1985, Open-File Report 85-495
Chapter Al of the laboratory manual contains methods used by the Geological Survey to analyze samples of water, suspended sediments, and bottom material for their content of inorganic constituents. Included are methods for determining the concentration of dissolved constituents in water, total recoverable and total of constituents in water-suspended sediment...
Hydrogeologic appraisal of five selected aquifers in Erie County, New York
Todd S. Miller, W. W. Staubitz
1985, Water-Resources Investigations Report 84-4334
Hydrogeologic conditions and water quality at four stratified-drift aquifers and a bedrock (Onondaga Limestone) aquifer were investigated by the U.S. Geological Survey in cooperation with the Erie County Department of Environment and Planning. The Clarence-Lancaster-Newstead area includes two aquifers--one is a complex of morainal, beach, and outwash sand and gravel;...