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Page 4520, results 112976 - 113000

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Estimation of the recharge area of a pumped, stratified-drift aquifer in Connecticut by simulation modeling
D. L. Mazzaferro
1989, Water-Resources Investigations Report 87-4124
Groundwater quality management plans in Connecticut require information about the size and shape of recharge areas that contribute flow to pumping centers in extensive, stratified-drift aquifers. Flow models of a hypothetical aquifer , and a stratified-drift aquifer in Farmington are used to evaluate how contributing areas change in response to...
Potentiometric surface of the Magothy Aquifer in southern Maryland during the fall of 1987
Frederick K. Mack, David C. Andreasen, Stephen E. Curtin, Judith C. Wheeler
1989, Water-Resources Investigations Report 89-4013
A map showing the potentiometric surface of the Magothy aquifer in the Cretaceous Magothy Formation in southern Maryland during the fall of 1987 was prepared by using water level measurements in 85 observation wells. The potentiometric surface was highest near the northwestern boundary and outcrop area of the aquifer in...
Potentiometric surface of the Black Creek Aquifer in the central coastal plain of North Carolina, December 1986
William L. Lyke, M. D. Winner Jr., Allen Richard Brockman
1989, Water-Resources Investigations Report 87-4233
Water level measurements were made in 95 wells open to the Black Creek aquifer at the end of 1986 to determine the configuration of its potentiometric surface over an area of about 4,900 sq mi in the central Coastal Plain of North Carolina. The altitude of the potentiometric surface of...
Preliminary hydrogeologic evaluation of the Cincinnati Arch region for underground high-level radioactive waste disposal, Indiana, Kentucky, and Ohio
O. B. Lloyd, R. W. Davis
1989, Water-Resources Investigations Report 88-4098
Preliminary interpretation of available hydrogeologic data suggests that some areas underlying eastern Indiana, north-central Kentucky, and western Ohio might be worthy of further study regarding the disposal of high-level radioactive waste in Precambrian crystalline rocks buried beneath Paleozoic sedimentary rocks in the area. The data indicate that (1) largest areas...
Quality-assurance data for routine water analysis in the National Water-Quality Laboratory of the US Geological Survey for water year 1988
K.J. Lucey
1989, Water-Resources Investigations Report 89-4166
The US Geological Survey maintains a quality assurance program based on the analysis of reference samples for its National Water Quality Laboratory located in Denver, Colorado. Reference samples containing selected inorganic, nutrient, and precipitation (low-level concentration) constituents are prepared at the Survey 's Water Quality Services Unit in Ocala, Florida,...
Tritium concentrations in flow from selected springs that discharge to the Snake River, Twin Falls-Hagerman area, Idaho
L. J. Mann
1989, Water-Resources Investigations Report 89-4156
Concern has been expressed that some of the approximately 30,900 curies of tritium disposed to the Snake River Plain aquifer from 1952 to 1988 at the INEL (Idaho National Engineering Laboratory) have migrated to springs discharging to the Snake River in the Twin Falls-Hagerman area. To document tritium concentrations in...
Ground-water data for Georgia, 1988
Charles N. Joiner, Michael F. Peck, Mark S. Reynolds, Welby L. Stayton
1989, Open-File Report 89-408
Continuous water-level records from 144 wells and water-level measurements from an additional 617 wells in Georgia during 1988 provide the basic data for this report. Daily mean water-level hydrographs for selected wells illustrate the effects that changes ln recharge and discharge have had on the ground-water reservoirs in the State...
Calibration and use of an interactive-accounting model to simulate dissolved solids, streamflow, and water-supply operations in the Arkansas River basin, Colorado
A.W. Burns
1989, Water-Resources Investigations Report 88-4214
An interactive-accounting model was used to simulate dissolved solids, streamflow, and water supply operations in the Arkansas River basin, Colorado. Model calibration of specific conductance to streamflow relations at three sites enabled computation of dissolved-solids loads throughout the basin. To simulate streamflow only, all water supply operations were incorporated in...
Continuous seismic-reflection survey of the Great Salt Lake, Utah– East of Antelope and Fremont Islands
P. M. Lambert, J. C. West
1989, Water-Resources Investigations Report 88-4157
A continuous seismic-reflection survey of the Great Salt Lake, Utah, was conducted east of Fremont and Antelope Islands in 1984 by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources and produced data along approximately 80 miles of seismic lines. The survey was conducted to determine...
Hydrology of the Prospector Square area, Summit County, Utah
J. L. Mason
1989, Water-Resources Investigations Report 88-4156
The Silver Creek tailings site is in Prospector Square, a commercial development and residential community in Summit County, Utah. This study assessed the presence of metals and the movement of groundwater in the unconsolidated valley-fill and consolidated-rock aquifers underlying the tailings. The unconsolidated valley fill is a poorly sorted mixture...
Streamflow statistics for streams on the Puyallup Indian Reservation, Washington
D. L. Kresch, E. A. Prych
1989, Water-Resources Investigations Report 87-4228
Streamflow statistics consisting of low flows, high flows, mean monthly flows, mean annual flows, flow durations, and peak flows were estimated for 16 sites on small streams on the Puyallup Indian Reservation, Washington. Drainage areas ranged from 0.62 to 16.7 sq mi. Streamflow statistics were also computed for the Puyallup...
Habitat Suitability Index Models: Black-tailed prairie dog
Norman W. Clippinger
1989, FWS/OBS 82/10.156
A review and synthesis of existing information were used to develop a Habitat Suitability Index (HSI) model for the black-tailed prairie dog (Cynomus ludovicianus). The model consolidates habitat use information into a framework appropriate for field application, and is scaled to produce an index between 0.0 (unsuitable habitat) to 1.0...