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Page 3935, results 98351 - 98375

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Are streams in agricultural and urban areas contaminated by pesticides?
R. A. Kimbrough
1995, Fact Sheet 104-95
To answer this question, a study of pesticides in streams in a small agricultural area and a small urban area in Colorado was conducted in 1993 by the U.S. Geological Survey (USGS) as part of the National Water-Quality Assessment (NAWQA) program. The results indicate that pesticides are present in streams,...
Denver's urban ground-water quality: Nutrients, pesticides, and volatile organic compounds
Breton W. Bruce
1995, Fact Sheet 106-95
A recent study by the U.S. Geological Survey (USGS) under the National Water-Quality Assessment (NAWQA) program characterized the ground-water quality in a part of the Denver, Colorado, metropolitan area. The study provides an assessment of water-quality conditions in an alluvial aquifer that drains into the South Platte River. Thirty wells...
Geologic map of Arsia Mons Volcano, Mars
David Holcomb Scott, James R. Zimbelman
1995, IMAP 2480
The geologic map shows the flanks and summit caldera of Arsia Mons, the southernmost of three large shield volcanoes (Arsia, Pavonis, and Ascraeus<span...
United States Geological Survey, programs in Nevada
Water Resources Division, U.S. Geological Survey
1995, Fact Sheet 028-95
The U.S. Geological Survey (USGS) has been collecting and interpreting natural-resources data in Nevada for more than 100 years. This long-term commitment enables planners to manage better the resources of a State noted for paradoxes. Although Nevada is one of the most sparsely populated States in the Nation, it has...
United States Geological Survey: Programs in Utah
Water Resources Division, U.S. Geological Survey
1995, Fact Sheet 044-95
The U.S. Geological Survey (USGS) has been collecting hydrologic data relating to the occurrence, quantity, and quality of water resources in Utah since 1889. The USGS maintains a network of about 200 gaging stations on rivers, streams, lakes, and reservoirs in Utah and parts of Wyoming, Idaho, and Arizona and...
Nitrate in ground water in the Great Valley carbonate subunit of the Potomac River Basin
Matthew J. Ferrari, Scott W. Ator
1995, Water-Resources Investigations Report 95-4099
Agriculture is the major land use in the carbonate part of the Great Valley of the Potomac River Basin. Applied fertilizer and manure are potential sources of nitrate that can contaminate Groundwater. Nitrate concentrations in Groundwater increased with increasing percentage of cropland but did not decrease with increasing well depth,...
Seasonal/yearly salinity variations in San Francisco Bay
David H. Peterson, Daniel R. Cayan, Michael D. Dettinger, Jeanne Sandra DiLeo, Stephen E. Hager, Noah Knowles, Frederic H. Nichols, Laurence E. Schemel, Richard E. Smith, Reginald J. Uncles
1995, Fact Sheet 213-95
The ability of resource agencies to manage fish, wildlife and freshwater supplies of San Francisco Bay estuary requires an integrated knowledge of the relations between the biota and their physical environment. A key factor in these relations is the role of salinity in determining both the physical and the biological...
Water Resources Data, California, Water Year 1994. Volume 2. Pacific Slope Basins from Arroyo Grande to Oregon State Line except Central Valley
Wendell Y. Ayers
1995, Water Data Report CA-94-2
Water-resources data for the 1994 water year for California consist of records of stage, discharge, and water quality of streams; stage and contents in lakes and reservoirs; and water levels and water quality in wells. Volume 2 contains discharge records for 113 streamflow-gaging stations, 1 low-flow partial-record streamflow station, and...
Ground-water resources of Kings and Queens Counties, Long Island, New York
Herbert T. Buxton, Peter K. Shernoff
1995, Open-File Report 92-76
The aquifers beneath Kings and Queens Counties supplied an average of more than 120 Mgal/d (million gallons per day) for industrial and public water supply during 1904-47, but this pumping caused saltwater intrusion and a deterioration of water quality that led to the cessation of pumping for public supply in...
Water resources data, Michigan, water year 1994
S. P. Blumer, T.E. Behrendt, J.M. Ellis, R. J. Minnerick, R.L. LeuVoy, C.R. Whited
1995, Water Data Report MI-94-1
Water resources data for the 1994 water year for Michigan consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and ground water levels. This report contains discharge records for 145 streamflow-gaging stations; stage only records for 2 river-gaging stations and 11...