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Page 1645, results 41101 - 41125

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Approximate changes in water levels in wells completed in the Chicot and Evangeline aquifers, 1977-94 and 1993-94, and measured compaction, 1973-93, in the Houston-Galveston region, Texas
Mark C. Kasmarek, L.S. Coplin, Horacio X. Santos
1994, Open-File Report 94-346
This report is one in a series of reports that depict water-level changes since 1977 and compaction of subsurface material since 1973.  The report was prepared in cooperation with the City of Houston and the Harris-Galveston Coastal Subsidence District, and presents maps showing the approximate changes in water levels in...
Ground-water flow and quality, and geochemical processes, in Indian Wells Valley, Kern, Inyo, and San Bernardino counties, California, 1987-88
Charles Berenbrock, R. A. Schroeder
1994, Water-Resources Investigations Report 93-4003
An existing water-quality data base for the 300- square-mile Indian Wells Valley was updated by means of chemical and isotopic analysis of ground water. The wide range in measured concentrations of major ions and of minor constituents such as fluoride, borate, nitrate, manganese, and iron is attributed to geochemical reactions...
Water levels in wells J-11 and J-12, 1989-91, Yucca Mountain area, Nevada
Michelle S. Boucher
1994, Open-File Report 94-303
Water levels have been measured in the Yucca Mountain area, Nevada, since 1981 in order to gain a better understanding of the gound-water flow system in the area. Water level in wells J-11 and J-12 have been periodically measured using calibrated reeled steel tapes since 1989, however, calculation of water-level...
Geologic history and hydrogeologic setting of the Edwards-Trinity aquifer system, west-central Texas
R.A. Barker, P. W. Bush, E.T. Baker
1994, Water-Resources Investigations Report 94-4039
The Edwards-Trinity aquifer system underlies about 42,000 square miles of west-central Texas. Nearly flat-lying, mostly Comanche (Lower Cretaceous) strata of the aquifer system thin northwestward atop massive pre-Cretaceous rocks that are comparatively impermeable and structurally complex. From predominately terrigenous clastic sediments in the east and fluvialdeltaic (terrestrial) deposits in the...
Hydrologic data for the alluvium and terrace deposits of the Cimarron River from Freedom to Guthrie, Oklahoma
Gregory P. Adams, D. L. Bergman, D.J. Pruitt, J.E. May, J. K. Kurklin
1994, Open-File Report 94-504
Ground water in the Quaternary alluvium and terrace deposits associated with the Cimarron River in northwestern Oklahoma is used extensively for irrigation, municipal, stock, and domestic supplies. The data in this report were collected as part of an investigation to provide State water managers with the quantitative knowledge necessary to...
Ground-water quality and trends at two industrial wastewater-injection sites in northwestern Florida, 1975-91
W. J. Andrews
1994, Water-Resources Investigations Report 93-4224
Industrial wastewater from two synthetic-fiber manufacturing plants has been injected into the Lower Floridan aquifer near Pensacola, Florida, since 1963, and near Milton, Florida, since 1975. Trend analysis of selected water-quality characteristics in water from four monitoring wells at each of these plants indicates that injected wastewater has affected ground-water...
Interactions of metallic substances and acidic ground water in the New Jersey Coastal Plan
J. L. Barringer
1994, Water-Resources Investigations Report 90-4095
Four ancillary studies were undertaken in support of an investigation into the extent and distribution of corrosive ground water in the Kirkwood- Cohansey aquifer system of southern New Jersey.The ancillary studies were (1) analysis of tap-water samples for metals and the acquisition of metal data from a county study, (2)...
Refining 1970's Land-Use Data With 1990 Population Data to Indicate New Residential Development
Kerie J. Hitt
1994, Water-Resources Investigations Report 94-4250
A procedure using a geographic information system was developed to define urban land use representative of the 1990's by overlaying U.S. Bureau of the Census 1990 population density at the block group level on 1970's digital land-use data from 1:250,000-and 1: 100,000scale maps. Any area having a population density of...
Hydrology and water quality of Whitewater and Rice lakes in southeastern Wisconsin, 1990-91
Gerald Goddard, S. J. Field
1994, Water-Resources Investigations Report 94-4101
The hydrology and water quality of Whitewater and Rice Lakes was studied by the U.S. Geological Survey during November 15, 1990November 14, 1991, in cooperation with the Whitewater-Rice Lakes Management District, Walworth County, Wis. Whitewater and Rice Lakes are small, shallow lakes; surface areas are 697 and 162 acres and...
Low-flow and flow-duration characteristics of Alabama streams
J.B. Atkins, J. L. Pearman
1994, Water-Resources Investigations Report 93-4186
Estimates of minimum 7-day average discharges with recurrence intervals of 2 and 10 years for 228 continuous-record gaging stations are presented in this report. Low-flow frequency discharge estimates for 447 partial-record stations are also presented. These discharge estimates were computed by relating base-flow discharge measurements at the partial- record stations...
Radioactivity in the environment; a case study of the Puerco and Little Colorado River basins, Arizona and New Mexico
Laurie Wirt
1994, Water-Resources Investigations Report 94-4192
This report, written for the nontechnical reader, summarizes the results of a study from 1988-91 of the occurrence and transport of selected radionuclides and other chemical constituents in the Puerco and Little Colorado River basins, Arizona and New Mexico. More than two decades of uranium mining and the 1979 failure...
Characterization of ground-water discharge from bedrock aquifers to the Mississippi and Minnesota Rivers at three areas, Minneapolis-St. Paul area, Minnesota
M.E. Schoenberg
1994, Water-Resources Investigations Report 94-4163
The hydrogeology at three areas along the Mississippi and Minnesota Rivers in the Minneapolis-St. Paul area were studied to characterize ground-water discharge from bedrock aquifers to the two rivers. Along the Mississippi River between Fridley and Brooklyn Center, a buried valley underlying the Mississippi River cuts through the overlying terrace...
Effects of water-control structures on hydrologic and water-quality characteristics in selected agricultural drainage canals in eastern North Carolina
M.W. Treece Jr., M.L. Jaynes
1994, Water-Resources Investigations Report 94-4226
November of water into and out of tidally affected canals in eastern North Carolina was documented before and after the installation of water-control structures. Water levels in five of the canals downstream from the water-control structures were controlled primarily by water-level fluctuations in estuarine receiving waters. Water-control structures also altered...
Methodology for the assessment of scour at bridge sites in Missouri
Richard J. Huizinga, Loyd A. Waite
1994, Open-File Report 94-544
A field inspection methodology, a scour- susceptibility ranking procedure, and a data base management system were developed for the Missouri Highway and Transportation Department to use for scour inspection and assessment at bridges throughout the State. Because scour can cause bridge failure, federal statute mandates that the approximately 4,700 state-owned...
Summary and interpretation of dye-tracer tests to investigate the hydraulic connection of fractures at a ridge-and-valley-wall site, near Fishtrap Lake, Pike County, Kentucky
Charles J. Taylor
1994, Water-Resources Investigations Report 94-4189
Dye-tracer tests were done during 1985-92 to investigate the hydraulic connection between fractures in Pennsylvanian coal-bearing strata at a ridge-and-valley-wall site near Fishtrap Lake, Pike County, Ky. Fluorescent dye was injected into a core hole penetrating near-surface and mining-induced fractures near the crest of the ridge. The rate and direction...
Contributing recharge areas to water-supply wells at Wright-Patterson Air Force Base, Ohio
R. A. Sheets
1994, Water-Resources Investigations Report 94-4231
Wright-Patterson Air Force Base, in southwestern Ohio, has operated three well fields--Area B, Skeel Road, and the East Well Fields--to supply potable water for consumption and use for base activities. To protect these well fields from contamination and to comply with the Ohio Wellhead Protection Plan, the Base is developing...
Cyclic injection, storage, and withdrawal of heated water in a sandstone aquifer at St. Paul, Minnesota: Analysis of thermal data and nonisothermal modeling of short-term test cycles
Robert T. Miller, G. N. Delin
1994, Open-File Report 93-435
In May 1980, the University of Minnesota began a project to evaluate the feasibility of storing heated water (150 degrees Celsius) in the Franconia-Ironton-Galesville aquifer (180 to 240 meters below land surface) and later recovering it for space heating. The University's steam-generation facilities supplied high-temperature water for injection. The Aquifer...