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Page 1696, results 42376 - 42400

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Not all publications have extents, not all extents are completely accurate
Data-collection methods and data summary for verification of a one-dimensional, unsteady-flow model of the Fox River in northeastern Illinois, October-November 1990
M.J. Turner
1993, Open-File Report 93-483
Synoptic-study measurements of unsteady streamflow and dye concentrations were collected on a 49.4-mile reach of the Fox River in south-eastern Wisconsin and northeastern Illinois in October and November 1990. The study area included the Fox River and its major tributaries from Wilmot, Wis., downstream to South Elgin, Ill. The measurements...
Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states
David E. Prudic, J. R. Harrill, T. J. Burbey
1993, Open-File Report 93-170
The regional groundwater flow system in the carbonate rocks of Nevada and Utah is conceptualized as shallow systems superimposed on deeper systems, which transmit water primarily through carbonate rocks. A computer model was used to simulate the two systems. The regional model includes simplifying assumptions that are probably valid for...
Compilation of surface-water and water-quality data-collection sites on selected streams in Virginia
Byron Prugh Jr., C.G. Humphrey
1993, Open-File Report 93-462
This report presents a listing of about 8,900 selected surface-water and water-quality data sites in Virginia where hydrologic and water-quality measurements have been made for the past 100 yr. The listing includes the agency station/site identification number and name, drainage area, datum, source agency, type of data collected, period of...
Ground-water concerns for the Eastern Shore, Virginia
D.L. Richardson
1993, Open-File Report 93-93
The Eastern Shore of Virginia is a peninsula that is surrounded on three sides by salty water and has no major fresh surface-water sources; groundwater provides the sole freshwater supply. Beginning in about 1965, increases in groundwater withdrawals for agricultural, commercial, urban, and industrial uses have caused water-level declines and...
Hydrologic conditions in the Jacobs Creek, Stony Brook, and Beden Brook drainage basins, west-central New Jersey, 1986-88
Eric Jacobsen, M. A. Hardy, B. A. Kurtz
1993, Water-Resources Investigations Report 91-4164
Data on the quantity and quality of groundwater and surface water in the drainage basins of Jacobs Creek, Stony Brook, and Beden Brook upstream from U.S. Route 206 in west-central New Jersey were collected from October 1, 1986, through September 30, 1988. Water levels measured in 74 wells ranged from...
Hydrology, water quality, trophic status, and aquatic plants of Fowler Lake, Wisconsin
P.E. Hughes
1993, Water-Resources Investigations Report 91-4076
The U.S. Geological Survey, in cooperation with the Fowler Lake Management District, completed a hydrologic and water-quality study of Fowler Lake in southeastern Wisconsin during calendar year 1984. Data on temperature, pH, specific conductance, and concentrations of dissolved oxygen, total phosphorus, dissolved orthophosphate phosphorus, and various nitrogen species were collected...
Hydrogeology and soil gas at J-Field, Aberdeen Proving Ground, Maryland
W.B. Hughes
1993, Water-Resources Investigations Report 92-4087
Disposal of chemical warfare agents, munitions, and industrial chemicals in J-Field, Aberdeen Proving Ground, Maryland, has contaminated soil, groundwater and surface water. Seven exploratory borings and 38 observation wells were drilled to define the hydrogeologic framework at J-Field and to determine the type, extent, and movement of contaminants. The geologic...
Escherichia coli and fecal-coliform bacteria as indicators of recreational water quality
D.S. Francy, Donna N. Myers, K.D. Metzker
1993, Water-Resources Investigations Report 93-4083
In 1986, the U.S. Environmental Protection Agency (USEPA) recommended that Escherichia coli (E. coli) be used in place of fecal-coliform bacteria in State recreational water-quality standards as an indicator of fecal contamination. This announcement followed an epidemiological study in which E. coli concentration was shown to be a better predictor...
Estimating net drawdown resulting from episodic withdrawals at six well fields in the coastal plain physiographic province of Virginia
M. J. Focazio, G. K. Speiran
1993, Water-Resources Investigations Report 93-4159
The groundwater-flow system of the Virginia Coastal Plain consists of areally extensive and interconnected aquifers. Large, regionally coalescing cones of depression that are caused by large withdrawals of water are found in these aquifers. Local groundwater systems are affected by regional pumping, because of the interactions within the system of...