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Page 2196, results 54876 - 54900

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Chemical and physical characteristics of natural ground waters in Michigan: A preliminary report
T. Ray Cummings
1980, Open-File Report 80-953
Wide variations occur in the chemical and physical characteristics of natural groundwaters in Michigan. Dissolved-solids concentrations range from 23 to 2,100 milligrams per liter. Waters having low dissolved-solids concentrations are calcium bicarbonate waters. Sodium, sulfate, and chloride increase as mineralization increases. Iron, aluminum, and titanium are higher at some locations...
Summary of water-quality data for selected streams in Colorado
M.W. Gaydos
1980, Open-File Report 80-682
This report presents the first statewide summary of water-quality data for selected streams in Colorado. Included in the report are a tabulation of the 165 surface-water-sampling sites for which five or more analyses of major chemical constituents were available at the end of the 1978 water year and a tabulation...
Altitude of the water table in the alluvial and Wilcox aquifers in the vicinity of Richland and Tehuacana creeks and the Trinity River, Texas, December 1979
Sergio Garza
1980, Open-File Report 80-1007
This map shows the altitude of the water table in the alluvial and Wilcox aquifers in the vicinity of Richland and Tehuacana Creeks and the Trinity River, Tex., in December 1979. The water-table contours were constructed on the basis of water-level control derived from an inventory of shallow wells in...
A procedure for predicting concentrations of dissolved solids and sulfate ion in streams draining areas strip mined for coal
Hugh E. Bevans
1980, Open-File Report 80-764
Current trends in increased coal production neccessitate the development of techniques to appraise the environmental degradation that results from strip mining. A procedure is introduced for the prediction of dissolved-solids and sulfate-ion concentrations in streams draining strip-mined areas as functions of the percentage of the drainage area that has been...
Quality of runoff from small watersheds in the Twin Cities Metropolitan Area, Minnesota - A project plan
M. A. Ayers, G. A. Payne, Gary L. Oberts
1980, Open-File Report 80-592
A program of water-quality sampling to define the relationships between land use, watershed characteristics, and the quantity, quality, and timing of runoff has been started for the Twin Cities metropolitan area of Minnesota. Ten major watersheds were chosen as representative of conditions in the metropolitan area. Each will be sampled...
Effect of pumpage on ground-water levels as modeled in Laramie County, Wyoming
Marvin A. Crist
1980, Open-File Report 80-1104
Groundwater is being extensively developed for domestic, agricultural, and industrial use in a 2,320-square mile area in Laramie County, WY., bounded approximately by Horse Creek on the north, Nebraska on the east, Colorado on the south, and pre-Tertiary outcrops on the west. Currently (1977) about 47,300 acres of land are...
Probable high ground-water levels on Cape Cod, Massachusetts
Michael H. Frimpter
1980, Open-File Report 80-1008
Water-level records from 146 short-term (1 year) observation wells and 13 long-term (16-28 years) observation wells were used to estimate the probable high ground-water level that could occur at any site on Cape Cod. The estimation was based on correlation of a single water-level measurement from a test site with...
Water-quality characteristics of selected lakes and reservoirs in Colorado
Linda J. Britton, Dennis A. Wentz
1980, Open-File Report 80-436
During the summers and autumns of 1973, 1974, and 1975, water-quality data were collected and compiled for 56 lakes and reservoirs in Colorado. The lakes and reservoirs sampled range from large reservoirs in the eastern part of the State to smaller natural lakes in the higher western parts of the...
Preliminary field geotechnical and geophysical logs from a drill hole in the Capps coal field, Cook Inlet region, Alaska
Alan F. Chleborad, Lynn A. Yehle, Henry R. Schmoll, Cynthia A. Gardner
1980, Open-File Report 80-393
The drilling and logging activity described in this report was undertaken in August 1979, as part of the Energy Lands program of the U.S. Geological Survey. The general objectives of the project, of which this work is a part, are to provide an understanding of the nature, location, and extent...
Water-quality assessment of the Porter County watershed, Kankakee River basin, Porter County, Indiana
Linda L. Bobo, Danny E. Renn
1980, Open-File Report 80-331
Water type in the 241-square mile Porter County watershed in Indiana, was calcium bicarbonate or mixed calcium bicarbonate and calcium sulfate. Concentrations of dissolved chemical constituents in surface water and contents of chlorinated hydrocarbons in streambed samples in the watershed were generally less than water-quality alert limits set by the...
Hydrologic data for North Creek, Trinity River basin, Texas, 1978
C.C. Kidwell
1980, Open-File Report 80-573
The U.S. Soil Conservation Service is actively engaged in the installation of flood- and soil-erosion reducing structures in Texas under the authority of "The Flood Control Act of 1936 and 1944" and "Watershed Protection and Flood Prevention Act" (Public Law 566), as amended. The U.S. Soil Conservation Service has found...
Analyses of water, bank material, bottom material, and elutriate samples collected near Belzoni, Mississippi (upper Yazoo projects)
David B. Brightbill, Joseph B. Treadway
1980, Open-File Report 80-758
Four core-material-sampling sites and one bottom-material site were chosen by the U.S. Army Corps of Engineers to represent areas of proposed dredging activity along a 24.9-mile reach of the upper Yazoo River. Five receiving-water sites also were selected to represent the water that will contact the proposed dredged material. Chemical...
Planning and design of studies for river-quality assessment in the Truckee and Carson River basins, California and Nevada
Jon O. Nowlin, W. M. Brown, L. H. Smith, R.J. Hoffman
1980, Open-File Report 80-435
The objectives of the Geological Survey 's river-quality assessment in the Truckee and Carson River basins in California and Nevada are to identify the significant resource management problems; to develop techniques to assess the problems; and to effectively communicate results to responsible managers. Six major elements of the assessment to...
Hydrologic data for Okaloosa, Walton, and southeastern Santa Rosa counties, Florida
Jeffrey R. Wagner, L. R. Hayes, C.E. Lewis, D. E. Barr
1980, Open-File Report 80-741
This report presents hydrologic and water-quality data collected within Okaloosa, Walton, and southeastern Santa Rosa Counties in northwest Florida. The data are presented in graphs and tables. Groundwater data include descriptions of wells and test holes, analyses of water quality, water level measurements, hydrographs of water levels and chloride concentrations...
Water-supply assessment of the Laramie-Fox Hills aquifer in parts of Adams, Boulder, Jefferson, and Weld Counties, Colorado
Paul A. Schneider
1980, Open-File Report 80-327
Groundwater in the Laramie-Fox Hills aquifer is a potential source of supplemental municipal water supplies for the communities of Erie, Lafayette, Louisville, and Superior in Colorado. The present water supplies for these communities are not always adequate to meet current demands. The U.S. Geological Survey made a water-supply assessment of...
Flood magnitude and frequency of small streams in Indiana: Preliminary estimating equations
Robert L. Gold
1980, Open-File Report 80-759
This interim report presents preliminary estimating equations developed for the ongoing study, "Flood Frequency of Small Streams in Indiana." The equations were developed by the multiple-regression technique from data collected at 57 crest-stage-gage and 15 rainfall-runoff sites in the study and from 133 streamflow stations in Indiana and 11 in...