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Page 3059, results 76451 - 76475

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Not all publications have extents, not all extents are completely accurate
Relation of Mercury to Other Chemical Constituents in Ground Water in the Kirkwood-Cohansey Aquifer System, New Jersey Coastal Plain, and Mechanisms for Mobilization of Mercury from Sediments to Ground Water
Julia L. Barringer, Cecilia L. MacLeod
2001, Water-Resources Investigations Report 2000-4230
Water from 265 domestic wells that tap the unconfined Kirkwood-Cohansey aquifer system in the Coastal Plain of New Jersey contained concentrations of mercury that are equal to or exceed the U.S. Environmental Protection Agency maximum contaminant level (MCL) of 2 ug/L (micrograms per liter). The wells range in depth from...
2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies
James V. Gardner, Peter Dartnell
2001, Data Series 72
In the summer of 2000, the U.S. Geological Survey, Pacific Seafloor Mapping Project in cooperation with the National Park Service, and the Center for Coastal and Ocean Mapping, University of New Hampshire used a state-of-the-art multibeam sonar system to collect high-resolution bathymetry and calibrated, co-registered acoustic backscatter to support both...
Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000
Valerie J. Kelly, Richard P. Hooper, Brent T. Aulenbach, Mary Janet
2001, Water-Resources Investigations Report 2001-4255
This report contains concentrations and annual mass fluxes (loadings) for a broad range of water-quality constituents measured during 1996-2000 as part of the U.S. Geological Survey National Stream Quality Accounting Network (NASQAN). During this period, NASQAN operated a network of 40-42 stations in four of the largest river basins of...
Beyond the Golden Gate: Oceanography, geology, biology, and environmental issues in the Gulf of the Farallones
John L. Chin, Edward Ueber, Peter H. Stauffer, James W. Hendley II
Herman A. Karl, editor(s)
2001, Circular 1198
In the 1990's, the U.S. Geological Survey sponsored a multidisciplinary, multiagency investigation of the Gulf of the Farallones, which lies offshore of the San Francisco Bay region. This book discussess the results of the endeavor, covering the topics of oceanography and geology, biology and ecological niches, and issues of environmental...
Algal Data from Selected Sites in the Upper Colorado River Basin, Colorado, Water Years 1996-97
Scott V. Mize, Jeffrey R. Deacon
2001, Open-File Report 2000-266
Algal community samples were collected at 15 sites in the Upper Colorado River Basin in Colorado as part of the National Water-Quality Assessment Program during water years 1996-97. Sites sampled were located in two physiographic provinces, the Southern Rocky Mountains and the Colorado Plateaus, and represented agricultural, mining, urban, and...
Baseline channel morphology and bank erosion inventory of South Fork Campbell Creek at Campbell Tract, Anchorage, Alaska, 1999 and 2000
Janet H. Curran
2001, Open-File Report 2001-288
South Fork Campbell Creek drains largely undeveloped land in Anchorage, Alaska, but supports heavy use near the Bureau of Land Management (BLM) Campbell Tract facility for recreation and environmental education. To help assess the impacts of human activities in the basin on biological communities, particularly aquatic and terrestrial biota, morphological...
Water resources of the Lake Traverse Reservation, South and North Dakota, and Roberts County, South Dakota
Ryan F. Thompson
2001, Water-Resources Investigations Report 2001-4219
In 1994, the U.S. Geological Survey, in cooperation with the Sisseton-Wahpeton Sioux Tribe; Roberts County; and the South Dakota Department of Environment and Natural Resources, Geological Survey Program, began a 6-year investigation to describe and quantify the water resources of the area within the 1867 boundary of the Lake Traverse...
Hydrologic considerations for estimation of storage-capacity requirements of impounding and side-channel reservoirs for water supply in Ohio
G. F. Koltun
2001, Water-Resources Investigations Report 2001-4256
This report provides data and methods to aid in the hydrologic design or evaluation of impounding reservoirs and side-channel reservoirs used for water supply in Ohio. Data from 117 streamflow-gaging stations throughout Ohio were analyzed by means of nonsequential-mass-curve-analysis techniques to develop relations between storage requirements, water demand, duration, and...
A field conference on Impacts of coalbed methane development in the Powder River basin, Wyoming
Romeo M. Flores, Gary D. Stricker, Joseph F. Meyer, Thomas E. Doll, Pierce H. Norton, Robert J. Livingston, M. Craig Jennings, Scott Kinney, Heather Mitchell, Steve Dunn
2001, Open-File Report 2001-126
Coalbed methane (CBM) development from the Paleocene Fort Union Formation coal beds in the Powder River Basin in Wyoming has been rapidly expanding since 1993.  During the past ten years the number of CBM producing wells rose to about 4,000 wells as of October, 2000.  About 3,500 of these wells...
Mineral potential modelling of gold and silver mineralization in the Nevada Great Basin — A GIS-based analysis using weights of evidence
Mark J. Mihalasky
2001, Open-File Report 2001-291
The distribution of 2,690 gold-silver-bearing occurrences in the Nevada Great Basin was examined in terms of spatial association with various geological phenomena. Analysis of these relationships, using GIS and weights of evidence modelling techniques, has predicted areas of high mineral potential where little or no mining activity exists. Mineral potential...
Potentiometric surfaces of the intermediate aquifer system, west-central Florida, September 2000
A. D. Duerr
2001, Open-File Report 2001-114
The intermediate aquifer system underlies a 5,000-square-mile area within the Southwest Florida Water Management District including De Soto, Sarasota, Hardee, Manatee, and parts of Charlotte, Hillsborough, Highlands, Polk, and Lee Counties.  The intermediate aquifer system is overlain by the surficial aquifer system and is underlain by the Floridan aquifer system....
Publications of Volcano Hazards Program 2000
Manuel Nathenson
2001, Open-File Report 2001-464
The Volcano Hazards Program of the U.S. Geological Survey (USGS) is part of the Geologic Hazards Assessments subactivity as funded by Congressional appropriation. Investigations are carried out in the Geology and Hydrology Disciplines of the USGS and with cooperators at the Alaska Division of Geological and Geophysical Surveys, University of...
Results of chemical and stable isotopic analyses of water samples collected in the Patagonia Mountains, southern Arizona
Richard B. Wanty, Wayne C. Shanks III, Paul Lamothe, A. L. Meier, Fred Lichte, Paul H. Briggs, Byron R. Berger
2001, Open-File Report 2001-463
Water samples were collected in the Patagonia Mountains in February, 1997. Most of the samples were collected from portals of abandoned mines, or from stream drainages immediately downstream from abandoned mines. Most of the samples have low pH ( 1000 mg/L). Anion composition of...
Geologic map of the Steele Peak 7.5' quadrangle, Riverside County, California
Douglas M. Morton, Rachel M. Alvarez, Van M. Diep
2001, Open-File Report 2001-449
Open-File Report 01-449 contains a digital geologic map database of the Steele Peak 7.5’ quadrangle, Riverside County, California that includes: ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. A Postscript file to plot the geologic map on a topographic base, and containing a...