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Page 1953, results 48801 - 48825

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Limnological characteristics of selected lakes in the Nebraska sandhills, U.S.A., and their relation to chemical characteristics of adjacent ground water
J.W. La Baugh
1986, Journal of Hydrology (86) 279-298
Limnological characteristics of Crane, Hackberry, Island and Roundup Lakes, and chemical characteristics of shallow ground water, within the Crescent Lake National Wildlife Refuge, western Nebraska, were determined during a preliminary investigation of the interaction between lakes and ground water in this study area between 1980 and 1984. When ice cover...
Determining gold in water by anion-exchange batch extraction
J. B. McHugh
1986, Talanta (33) 349-351
This paper describes a batch procedure for determining gold in natural waters. It is completely adaptable to field operations. The water samples are filtered and acidified before they are equilibrated with an anion-exchange resin by shaking. The gold is then eluted with acetone-nitric acid solution, and the eluate evaporated to...
National water summary 1985: Hydrologic events and surface-water resources
United States Geological Survey
1986, Water Supply Paper 2300
The surface-water resources of the United States, the focal point for this National Water Summary, are extensively developed and managed to provide water supplies, hydroelectric power, navigation, recreational opportunities, and sufficient instream flows to maintain fish and wildlife habitats and adequate water quality. Surface water represents 77 percent of the...
Quaternary geologic map of the Jacksonville 4 degrees x 6 degrees quadrangle, United States
M.S. Knapp, M. S. Friddell, David L. Weide, David S. Fullerton
Gerald M. Richmond, editor(s)
1986, IMAP 1420(NH-17)
This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1986. The geologic data have now been captured digitally and are presented here along with images of the printed map sheet and component parts as PDF files. The...
Water resources data for Georgia, water year 1985
W.R. Stokes, T.W. Hale, J. L. Pearman, G. R. Buell
1986, Water Data Report GA-85-1
Water resources data for the 1985 water year for Georgia 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 of 109 gaging stations; stage for 11 gaging stations; stage and contents for 18...
Ground water in the Long Meadow area and its relation with that in the General Sherman Tree area, Sequoia National Park, California
J. P. Akers
1986, Water-Resources Investigations Report 85-4178
Westward movement of ground water from the Long Meadow area of Sequoia National Park, California, to the General Sherman Tree area is prevented by an eastward hydraulic gradient and low fracture permeability of a granodiorite ridge separating the two areas. Clay beds present in the alluvium in the Long Meadow...
Hydrogeology and leachate movement near two chemical-waste sites in Oswego County, New York
H. R. Anderson, Todd S. Miller
1986, Water-Resources Investigations Report 84-4148
Forty-five observation wells and test holes were installed at two chemical waste disposal sites in Oswego County, New York, to evaluate the hydrogeologic conditions and the rate and direction of leachate migration. At the site near Oswego groundwater moves northward at an average velocity of 0.4 ft/day through unconsolidated glacial...
Planning report for the Edwards-Trinity Regional Aquifer-System analysis in central Texas, southeast Oklahoma, and southwest Arkansas
Peter W. Bush
1986, Water-Resources Investigations Report 86-4343
The Edwards-Trinity regional aquifer system supplies more than 0.78 million acre-feet per year (700 million gallons per day) of water for central Texas and small adjacent parts of southeast Oklahoma and southwest Arkansas. The system consists of three major aquifers and at least three minor aquifers in predominantly Cretaceous rocks,...
Sediment discharge in the Colorado River near De Beque, Colorado
D. L. Butler
1986, Water-Resources Investigations Report 85-4266
A study was conducted to determine annual-sediment discharge at the site of a proposed reservoir on the Colorado River at Una, located 3 miles upstream from De Beque, Colorado. Eleven suspended sediment samples were collected during 1984 at the De Beque bridge. These data were combined with suspended sediment data...
Selected aquifer-test information for the coastal plain aquifers of South Carolina
W. R. Aucott, Roy Newcome
1986, Water-Resources Investigations Report 86-4159
Aquifer and well hydraulic characteristics were determined from more than 100 multiple-well and single-well aquifer tests in the Coastal Plain of South Carolina and tabulated by county. Multiple-well aquifer tests were analyzed by the This method for nonleaky aquifers and the Hantush-Jacob method for leaky aquifers. Single-well tests were analyzed...
Preliminary delineation and description of the regional aquifers of Tennessee– Tertiary aquifer system
J. V. Brahana, M. W. Bradley, Dolores Mulderink
1986, Water-Resources Investigations Report 83-4011
The Tertiary aquifer system in Tennessee is composed of sands and clays of Quaternary and Tertiary age. The aquifer system occurs in west Tennessee from the Mississippi River east to the outcrop of the Porters Creek Clay. Groundwater in the Tertiary aquifer system is recharged at outcrops and through overlying...
Preliminary delineation and description of the regional aquifers of Tennessee– The Cretaceous aquifer system of west-Tennessee
J. V. Brahana, Dolores Mulderink, M. W. Bradley
1986, Water-Resources Investigations Report 83-4039
The Cretaceous aquifer in Tennessee is composed of sand and clay of Cretaceous age. The aquifer occurs in west Tennessee from the Mississippi River east to the Tennessee River. Groundwater in the Cretaceous aquifer is recharged at outcrops and through overlying permeable deposits. The overlying Porter 's Creek clay acts...
Benthic invertebrate population characteristics as affected by water quality in coal-bearing regions of Tennessee
A.D. Bradfield
1986, Water-Resources Investigations Report 85-4227
Benthic invertebrate and water quality data collected during previous U.S. Geological Survey studies to provide background hydrologic information on streams draining Tennessee coal reserves, were evaluated to identify possible relations between stream biota and water quality. Linear regressions produced low correlation coefficients relating the number of taxa/sample, total number of...
Regionalization of winter low-flow characteristics of Tennessee streams
R.H. Bingham
1986, Water-Resources Investigations Report 86-4007
Procedures were developed for estimating winter (December-April) low flows at ungaged stream sites in Tennessee based on surface geology and drainage area size. One set of equations applies to West Tennessee streams, and another set applies to Middle and East Tennessee streams. The equations do not apply to streams where...
Techniques for estimating flood-peak discharges from urban basins in Missouri
L.D. Becker
1986, Water-Resources Investigations Report 86-4322
Techniques are defined for estimating the magnitude and frequency of future flood peak discharges of rainfall-induced runoff from small urban basins in Missouri. These techniques were developed from an initial analysis of flood records of 96 gaged sites in Missouri and adjacent states. Final regression equations are based on a...
Low-flow profiles of the upper Ocmulgee and Flint rivers in Georgia
R.F. Carter, E. H. Hopkins, H. Perlman
1986, Water-Resources Investigations Report 86-4176
This report provides low-flow information for use in evaluating the capacity of streams to supply withdrawals or to accept waste loads from potential new industries without exceeding the limits of State water-quality standards. The report is the first phase of a study of all stream basins north of the Fall...
Occurrence of dissolved sodium in ground waters in basalts underlying the Columbia Plateau, Washington
Gilbert C. Bortleson, S.E. Cox
1986, Water-Resources Investigations Report 85-4005
Basalt aquifers of the Columbia River Basalt Group are a principal source of water for agricultural, domestic, and municipal use. Concern has been expressed in this agriculture-dependent region about problems associated with the use of groundwaters with a high sodium concentration relative to the calcium and magnesium content (high sodium-adsorption...