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Page 1514, results 37826 - 37850

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Not all publications have extents, not all extents are completely accurate
Ground-water data for Georgia, 1986
J.S. Clarke, S.A. Longsworth, C. N. Joiner, M.F. Peck, K.W. McFadden, B.J. Milby
1987, Open-File Report 87-376
Continuous water level records from 152 wells and water level measurements from an additional 750 wells in Georgia during 1986 provide the basic data for this report. Hydrographs for selected wells illustrate the effects that changes in recharge and discharge have had on the groundwater reservoirs in the State. Daily...
Determination of benthic-invertebrate indices and water-quality trends of selected streams in Chester County, Pennsylvania, 1969-80
C.R. Moore
1987, Water-Resources Investigations Report 85-4177
The trends of biological and chemical data collected for 12 years (1969-80) from 46 sites in Chester County were evaluated by using the sea- sonal Kendall test. Brillouin's diversity index was calculated and plotted against time for each site. The diversity index at 7 sites had upward trends significant at...
Hydrologic and geologic data for the Edwards Aquifer Recharge Zone near Georgetown, Williamson County, Texas, 1986-87
M.E. Dorsey, Diana L. Slagle
1987, Open-File Report 87-691
This report presents a compilation and summary of data related to the interchange of water between the Edwards aquifer and streams, and to the hydraulics of vertical movement of water in the Georgetown Limestone in the Georgetown area of Williamson County. It presents hydrologic, geologic, hydraulic, physical, geophysical, and water-quality...
Water-resources report prepared by the U.S. Geological Survey, Texas District, 1973-1986
1987, Open-File Report 87-228
Since 1973, personnel of the Texas District, Water Resources Division of the U.S. Geological Survey have written and published approximately 300 reports concerning the water resources of Texas. These reports vary considerably in subject matter, complexity, format, desired audience, and publication outlet. Some of the reports have been published in...
Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984
M. H. Brooks, L.J. Schroder, T. C. Willoughby
1987, Water-Resources Investigations Report 87-4050
The U.S. Geological Survey operated a blind audit sample program during 1974 to test the effects of the sample handling and shipping procedures used by the National Atmospheric Deposition Program and National Trends Network on the quality of wet deposition data produced by the combined networks. Blind audit samples, which...
Ground-penetrating radar study of the thickness and extent of sediments beneath Silver Lake, Berlin and Meriden, Connecticut
F.P. Haeni, D. K. McKeegan, D.R. Capron
1987, Water-Resources Investigations Report 85-4108
A short-pulse ground-penetrating radar system was used to determine the extent and thickness of organic-rich lake-bottom sediments in Silver Lake in south-central Connecticut. Four mi of ground-penetrating radar profiles were obtained along traverses of the frozen lake during March 1984. The radar waves penetrated 6 inches of snow, 1 ft...
Geohydrology of the Antelope Valley Area, California and design for a ground-water-quality monitoring network
L.F. Duell
1987, Water-Resources Investigations Report 84-4081
A basinwide ideal network and an actual network were designed to identify ambient groundwater quality, trends in groundwater quality, and degree of threat from potential pollution sources in Antelope Valley, California. In general, throughout the valley groundwater quality has remained unchanged, and no specific trends are apparent. The main source...
Data-base development for water-quality modeling of the Patuxent River basin, Maryland
G. T. Fisher, R.M. Summers
1987, Open-File Report 87-379
Procedures and rationale used to develop a data base and data management system for the Patuxent Watershed Nonpoint Source Water Quality Monitoring and Modeling Program of the Maryland Department of the Environment and the U.S. Geological Survey are described. A detailed data base and data management system has been developed...
Quality-assurance data for routine water analysis in the laboratories of the US Geological Survey for water-year 1984
Dale B. Peart, Hoyt B. Sutphin
1987, Water-Resources Investigations Report 87-4077
The U.S. Geological Survey maintains a quality-assurance program based on the analysis of reference samples for its two water-analysis laboratories located in Atlanta, Georgia, and Denver, Colorado. Reference samples containing selected inorganic constituents are prepared at the U.S. Geological Survey's Ocala, Florida, office, disguised as routine samples, and sent daily...
Trace-metal leaching from plumbing materials exposed to acidic ground water in three areas of the coastal plain of New Jersey
G. R. Kish, J. A. Macy, R.T. Mueller
1987, Water-Resources Investigations Report 87-4146
The U.S. Geological Survey analyzed trace metal concentrations in tap water from domestic wells in newly constructed homes in Berkeley Township, Ocean County and Galloway Township, Atlantic County, N. J. The potable water distribution systems in all of the homes sampled are constructed primarily of copper with lead-based solder points....
Plan for the design, development, and implementation, and operation of the National Water Information System
M.D. Edwards
1987, Open-File Report 87-29
The Water Resources Division of the U.S. Geological Survey is developing a National Water Information System (NWIS) that will integrate and replace its existing water data and information systems of the National Water Data Storage and Retrieval System, National Water Data Exchange, National Water-Use Information, and Water Resources Scientific Information...
The U.S. Geological Survey Federal-State Cooperative Water-Resources Program, fiscal year 1986
B.K. Gilbert, W.B. Mann
1987, Open-File Report 87-27
The U.S. Geological Survey 's Federal-State Cooperative Water Resources Program has been in operation for 91 years as of fiscal year (FY) 1986. Hydrologic data collection and interpretive investigations are underway in every State, Puerto Rico, and several territories in cooperation with more than 900 State, regional and local agencies....
Map showing geochemical data for panned stream sediments from the Bread Loaf Further Planning Area, Addison and Washington counties, Vermont
A. E. Grosz, P. G. Schruben, P.J. Atelsek
1987, Miscellaneous Field Studies Map 1625-D
A geochemical survey of bedrock samples in the Bread Loaf Roadless Area (index map; fig. 1) was conducted by the U.S. Geological Survey (USGS) during October, 1981 in order to outline areas that may contain undiscovered mineral deposits. This report describes the results of a geochemical analysis of panned concentrates...
Statistical analysis of surface-water-quality data in and near the coal-mining region of southwestern Indiana, 1957-80
Jeffrey D. Martin, Charles G. Crawford
1987, Water Supply Paper 2291
The Surface Mining Control and Reclamation Act of 1977 requires that applications for coal-mining permits contain information about the water quality of streams at and near a proposed mine. To meet this need for information, streamflow, specific conductance, pH, and concentrations of total alkalinity, sulfate, dissolved solids, suspended solids, total...
Laboratory data on coarse-sediment transport for bedload-sampler calibrations
David Wellington Hubbell, H.H. Stevens Jr., J. V. Skinner, J.P. Beverage
1987, Water Supply Paper 2299
A unique facility capable of recirculating and continuously measuring the transport rates of sediment particles ranging in size from about 1 to 75 millimeters in diameter was designed and used in an extensive program involving the calibration of bedload samplers. The facility consisted of a 9-footwide by 6-foot-deep by 272-foot-long...