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Page 1918, results 47926 - 47950

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Preliminary assessment of water quality in the alluvial aquifer of the Puerco River basin, Northeastern Arizona
R. H. Webb, G.R. Rink, D. B. Radtke
1987, Water-Resources Investigations Report 87-4126
The quality of groundwater in the alluvial aquifer of the Puerco River basin, northeastern Arizona, was evaluated in order to assess potential contamination from uranium mining and milling operations in New Mexico. A total of 14 wells and 1 spring were sampled to determine if a contaminant plume of radionuclides...
Trace organic compounds in wet atmospheric deposition: an overview
T.R. Steinheimer, S.M. Johnson
1987, Water-Resources Investigations Report 87-4033
An overview of the occurrence of organic compounds in wet atmospheric deposition is given. Multiplicity of sources and problems associated with source identification are discussed. Available literature is reviewed by using citations from Chemical Abstracts and Water Resources Abstracts through June 1985 and includes reports published through December 1984 that...
Water resources data, New Mexico, water year 1986
Linda V. Beal, Robert L. Gold
1987, Water Data Report NM-86-1
Water resources data for the 1986 water year for New Mexico consist of records of discharge and water quality of streams; stage, contents and water quality of lakes and reservoirs; and water levels and water quality in wells and springs. This report contains discharge records for 166 gaging stations; stage...
Simulation of ground-water flow near the nuclear-fuel reprocessing facility at the Western New York Nuclear Service Center, Cattaraugus County, New York
R. M. Yager
1987, Water-Resources Investigations Report 85-4308
A two-dimensional finite-difference model was developed to simulate groundwater flow in a surficial sand and gravel deposit underlying the nuclear fuel reprocessing facility at Western New York Nuclear Service Center near West Valley, N.Y. The sand and gravel deposit overlies a till plateau that abuts an upland area of siltstone...
Water resources data, Massachusetts and Rhode Island, water year 1985
R. A. Gadoury, D. J. Kent, Kernell G. Ries III, H. L. White
1987, Water Data Report MA-RI-85-1
Water-resources data for the 1985 water year for Massachusetts and Rhode Island consist of records of stage, discharge, and water quality of streams; contents of lakes and reservoirs; and ground-water levels. This report contains discharge records for 97 gaging stations, monthend contents for 31 lakes and reservoirs, water quality for...
Water resources data for Alabama, water year 1986
H.C. Rollins, F.C. Sedberry, J. L. Pearman, T.R. Duvall
1987, Water Data Report AL-86-1
The Water Resources Division of the U.S. Geological Survey, in cooperation with State and Federal agencies, obtains a large amount of data pertaining to the water resources of Alabama each water year. These data, accumulated during many water years, constitute a valuable data base for developing an improved understanding of...
Overview of surface-water quality in Ohio's coal regions
Susan Westover, Michael Eberle
1987, Water-Resources Investigations Report 84-4061
This report is designed to provide the nontechnical audience with some of the results of an 'Assessment of Water Quality in Streams Draining Coal-Producing Areas in Ohio,' by Christine L. Pfaff and others (published by the U.S. Geological Survey in 1981). The purpose of the assessment was to document the...
Activities of the Water Resources Division, California District, in the 1986 fiscal year
C. A. Griner (compiler), P.W. Anttila
1987, Open-File Report 87-236
This report summarizes the progress of water resources studies in California by the U.S. Geological Survey during the fiscal yr 1986. Much of the work was done in cooperation with State and local agencies. Additional supporting funds were transferred from other Federal agencies or appropriated directly to the Geological Survey....
Preliminary water-use estimates in the United States in 1985
W.B. Solley, R.R. Pierce, C.F. Merk
1987, Open-File Report 87-692
Preliminary 1985 water use estimates are tabulated by State for the Und States, Puerto Rico, the Virgin Islands, and the District of Columbia. Preliminary estimates of water withdrawn from surface water and groundwater sources for offstream water use categories are presented prior to publication of the final estimates in a...
Techniques for estimating flood-depth frequency relations for streams in West Virginia
J.B. Wiley
1987, Water-Resources Investigations Report 87-4111
Multiple regression analyses are applied to data from 119 U.S. Geological Survey streamflow stations to develop equations that estimate baseline depth (depth of 50% flow duration) and 100-yr flood depth on unregulated streams in West Virginia. Drainage basin characteristics determined from the 100-yr flood depth analysis were used to develop...
Hydrogeology, degradation of ground-water quality, and simulation of infiltration from the Delaware River into the Potomac aquifers, northern Delaware
S.W. Phillips
1987, Water-Resources Investigations Report 87-4185
Brackish water is infiltrating from the Delaware River into the underlying Potomac aquifers in the Cretaceous Potomac Formation in northern Delaware. Evidence that infiltration at the river is actually occurring includes chloride concentrations in the aquifers that are above ambient levels and chemical characteristics of groundwater and river water that...
Estimates of consumptive use and ground-water return flow using water budgets in Palo Verde Valley, California
Sandra J. Owen-Joyce, Steven L. Kimsey
1987, Water-Resources Investigations Report 87-4070
Palo Verde Valley, California, is an agricultural area in the flood plain of the Colorado River where irrigation water is diverted from the river and groundwater is discharged to a network of drainage ditches and (or) the river. Consumptive use by vegetation and groundwater return flow were calculated using water...
Comparison of estimates of evapotranspiration and consumptive use in Palo Verde Valley, California
Lee H. Raymond, Sandra J. Owen-Joyce
1987, Water-Resources Investigations Report 87-4071
Estimates of evapotranspiration and consumptive use by vegetation in Palo Verde Valley, California, were compared for calendar years 1981 to 1984. Vegetation types were classified, and the areas covered by each type were computed from Landsat satellite digital-image analysis. Evapotranspiration was calculated by multiplying the area of each vegetation type...