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Page 4660, results 116476 - 116500

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Publication Extents

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Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife Refuge, Texas, 1986-87
Frank C. Wells, Gerry A. Jackson, William J. Rogers
1988, Water-Resources Investigations Report 87-4277
In 1986, the Department of the Interior conducted reconnaissance investigations in nine areas of the western conterminous United States to determine whether irrigation drainage has caused or has the potential to cause harmful effects to human health, fish, and wildlife, or may adversely affect the suitability of water for beneficial...
Nitrogen transport in a shallow outwash aquifer at Olean, Cattaraugus County, New York
R. M. Yager, M. P. Bergeron
1988, Water-Resources Investigations Report 87-4043
Groundwater beneath an industrial park at Olean, New York, contained nitrogen compounds in concentrations that in 1983 ranged from 10 to 1,280 mg/L as nitrogen, mainly in the form of ammonium. Continuous pumping from an industrial well field creates a cone of depression that prevents the nitrogen compounds from migrating...
National water-information clearinghouse activities; ground-water perspective
C.A. Haupt, R.A. Jensen
1988, Open-File Report 88-114
The US Geological Survey (USGS) has functioned for many years as an informal clearinghouse for water resources information, enabling users to access groundwater information effectively. Water resources clearinghouse activities of the USGS are conducted through several separate computerized water information programs that are involved in the collection, storage, retrieval, and...
Subsurface geology of Paleozoic, Mesozoic, and Cenozoic units in southeast Missouri
T. O. Mesko
1988, IMAP 1875
The U.S. Geological Survey is conducting a regional water-resources investigation of the Gulf Costal Plain, which includes all of the Mississippi Alluvial Plain of southeastern Missouri, locally known as the southeast lowlands. The purpose of the regional study is to describe and evaluate the major aquifer systems in sediments of...
Ground-water flow and solute transport at a municipal landfill site on Long Island, New York — Part 2: Simulation of ground-water flow
E. J. Wexler, P. E. Maus
1988, Water-Resources Investigations Report 86-4106
Data on the hydrogeology of a 26-sq-mi area surrounding the Brookhaven landfill site in central Suffolk County were collected as part of a hydrologic investigation of solute transport from the site. These data were used to develop a steady-state groundwater flow model of the upper glacial (water table) aquifer in...
U.S. Geological Survey ground-water studies in Utah
Joseph S. Gates
1988, Open-File Report 88-157
Ground water is an important natural resource in Utah. In the basins west of the Wasatch Front, and in many other parts of Utah, ground water is the primary source of water. In many of the basins of the western desert and in parts of the Colorado Plateau, ground water...
Ground-water flow and solute transport at a municipal landfill site on Long Island, New York. Part 3, simulation of solute transport
E. J. Wexler
1988, Water-Resources Investigations Report 86-4207
A solute transport model representing a 2.3-sq mi area surrounding and downgradient from a municipal landfill site in the Town of Brookhaven, N.Y. was used to simulate migration of a conservative solute (chloride) in the upper glacial aquifer. Aquifer values used in the model were: hydraulic conductivity, 200 ft/day; effective...