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Potential for ground-water contamination from movement of wastewater through the unsaturated zone, upper Mojave River Basin, California
A.M. Umari, P. M. Martin, R. A. Schroeder, L. F. Duell Jr., R.G. Fay
1993, Water-Resources Investigations Report 93-4137
Septic-tank wastewater disposed in 30-foot-deep seepage pits (dry wells) at 46,000 residences is estimated to equal 18 percent of the natural recharge to the sole-source aquifer in the rapidly developing upper Mojave River Basin (Victor Valley) in the high desert northeast of Los Angeles. Vertical rates of movement of the...
Hydrogeologic framework of U.S. Marine Corps Base at Camp Lejeune, North Carolina
A. P. Cardinell Jr., S. A. Berg, O. B. Lloyd Jr.
1993, Water-Resources Investigations Report 93-4049
The hydrogeologic framework at Camp Lejeune consists of the surficial, Castle Hayne, Beaufort, and Peedee aquifers and intervening confining units. The Castle Hayne aquifer furnishes about 7 million gallons of water per day to Camp Lejeune, but the surficial, Beaufort, and Peedee aquifers, which contain freshwater in places, are not...
Sediment-transport characteristics of Cane Creek, Lauderdale County, Tennessee
W. P. Carey
1993, Water-Resources Investigations Report 93-4067
An investigation of the sediment-transport characteristics of Cane Creek in Lauderdale County, Tennessee, was conducted from 1985-88 to evaluate the potential for channel erosion induced by modifications (realignment and enlargement) and the potential ability of different flows to move bed and bank stabilizing material. Frequently occurring flows in Cane Creek...
Measurement of evapotranspiration in phreatophyte areas, Smith Creek Valley and Carson Desert, west-central Nevada, 1983
R. L. Carman
1993, Water-Resources Investigations Report 89-4118
Evaporation from bare soils and evapotranspiration from phreatophyte areas are major sources of natural groundwater loss in the Great Basin region of Nevada, Utah, and adjacent states. This study evaluated three methods for determining evapotrans- piration under natural conditions and provides quantitative estimates of evapotranspiration. Two of the methods used,...
Reconnaissance of quality of water from farmstead wells in Tennessee, 1989-90
J. K. Carmichael, M. W. Bennett
1993, Water-Resources Investigations Report 92-4186
Data for fecal bacteria, nitrate, organic compounds, iron, manganese, and pH were collected during 1989-90 as part of a statewide reconnaissance of ground-water quality in 150 domestic farm wells in Tennessee. The biological and chemical data for each well were grouped according to eight of the nine principal aquifers in...
Hydrology of Park County, Wyoming, exclusive of Yellowstone National Park
M.E. Lowry, M.L. Smalley, K. L. Mora, R.G. Stockdale, M.W. Martin
1993, Water-Resources Investigations Report 93-4183
The climate of Park County, Wyoming, ranges from desert to alpine tundra. Average annual precipitation ranges from 6 to 40 inches. Ground water is present throughout most of the county, but supplies adequate for stock or domestic use are not readily available in areas of greatest need. The chemical quality...
Hydrology, vegetation, and soils of four north Florida River flood plains with an evaluation of state and federal wetland determinations
H.M. Light, M. R. Darst, M.T. MacLaughlin, S.W. Sprecher
1993, Water-Resources Investigations Report 93-4033
A study of hydrologic conditions, vegetation, and soils was made in wetland forests of four north Florida streams from 1987 to 1990. The study was conducted by the U.S. Geological Survey in cooperation with the Florida Department of Environmental Regulation to support State and Federal efforts to improve wetland delineation...
Laboratory procedures and data reduction techniques to determine rheologic properties of mass flows
Robert R. Holmes Jr., R.J. Huizinga, S.M. Brown, H.E. Jobson
1993, Water-Resources Investigations Report 93-4123
Determining the rheologic properties of coarse- grained mass flows is an important step to mathematically simulate potential inundation zones. Using the vertically rotating flume designed and built by the U.S. Geological Survey, laboratory procedures and subsequent data reduction have been developed to estimate shear stresses and strain rates of various...
Geology and ground-water resources in the Zebulon area, Georgia
M. J. Chapman, B.J. Milby, M.F. Peck
1993, Water-Resources Investigations Report 93-4161
The current (1991) surface-water source of drinking-water supply for the city of Zebulon, Pike County, Georgia, no longer provides an adequate water supply and periodically does not meet water-quality standards. The hydrogeology of crystalline rocks in the Zebulon area was evaluated to assess the potential of ground-water resources as a...
Ground-water quality of the Upper Floridan Aquifer near an abandoned manufactured gas plant in Albany, Georgia
M. J. Chapman
1993, Water-Resources Investigations Report 93-4038
Manufactured gas plants produced gas for heating and lighting in the United States from as early as 1816 into the 1960's. By-products including, but not limited to, oil residues and tar, were generated during the gas-manufacturing process. Organic compounds (hydrocarbons) were detected in water in the upper water-bearing zone of...
Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program
Thomas F. Cuffney, Martin E. Gurtz, Michael R. Meador
1993, Open-File Report 93-406
Benthic invertebrate communities are evaluated as part of the ecological survey component of the U.S. Geological Survey's National Water-Quality Assessment Program. These biological data are collected along with physical and chemical data to assess water-quality conditions and to develop an understanding of the factors that affect water-quality conditions locally, regionally,...
Data from core analyses, aquifer testing, and geophysical logging of Denver Basin bedrock aquifers at Castle Pines, Colorado
S. G. Robson, E. R. Banta
1993, Open-File Report 93-442
This report contains data pertaining to the geologic and hydrologic characteristics of the bedrock aquifers of the Denver basin at a site near Castle Pines, Colorado. Data consist of a lithologic- description of about 2,400 ft of drill core and laboratory determinations of mineralogy, grain size, bulk and grain density,...
Physical-property, water-quality, plankton, and bottom-material data for Devils Lake and East Devils Lake, North Dakota, September 1988 through October 1990
Steven K. Sando, Bradley A. Sether
1993, Open-File Report 93-66
Physical-properties were measured and water-quality, plankton, and bottom-material samples were collected at 10 sites in Devils Lake and East Devils Lake during September 1988 through October 1990 to study water-quality variability and water-quality and plankton relations in Devils Lake and East Devils Lake. Physical properties measured include specific conductance, pH,...
Documentation of model input and output values for simulation of regional ground-water flow, carbonate-rock province, Nevada, Utah, and adjacent states
Donald H. Schaefer
1993, Open-File Report 93-420
Documentation of model input values and sample output used during a conceptual evaluation of the regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states, was revised from previously published Open-File Report 91-479. The documentation, consisting of a listing of input values and sample...
Chemical, isotopic, and microbiological evidence for denitrification during transport of domestic wastewater through a thick unsaturated zone in the Mojave Desert, San Bernardino County, California
R. A. Schroeder, P. M. Martin, J.K. Böhlke
1993, Open-File Report 93-414
Nitrogen in downward-infiltrating wastewater discharged from seepage pits (dry wells) at residences in the upper Mojave River Basin, California represents a significant potential source of nitrate contamination to the underlying ground water. However, increases in nitrate concentration in the ground water have not yet been observed. The low nitrate concentration...
Physical, chemical, and biological data for detailed study of irrigation drainage in the Salton Sea area, California, 1988-90
R. A. Schroeder, Mick Rivera
1993, Open-File Report 93-83
This report contains physical, chemical, and biological data associated with irrigation drainage in the Salton Sea area collected during the late 1980's. The data were collected in support of the u.S. Department of the Interior's National Irrigation Water Quality Program in the Western United States to evaluate effects on the...
Geochemistry and migration of contaminants at the Weldon Spring chemical plant site, St. Charles County, Missouri, 1989-91
John G. Schumacher
1993, Open-File Report 93-433
The geochemistry of the shallow aquifer and geochemical controls on the migration of uranium and other constituents from raffinate pits were determined at the Weldon Spring chemical plant site. Surface-water samples from the raffinate pits con- tained large concentrations of calcium, magnesium, sodium, potassium, sulfate, nitrite, lithium, moly- bdenum, strontium,...
Estimation of peak-frequency relations, flood hydrographs, and volume-duration-frequency relations of ungaged small urban streams in Ohio
J. M. Sherwood
1993, Open-File Report 93-135
Methods are presented to estimate peak-frequency relations, flood hydrographs, and volume-duration-frequency relations of urban streams in Ohio with drainage areas less than 6.5 square miles. The methods were developed to assist planners in the design of hydraulic structures for which hydrograph routing is required or where the temporary storage of...