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Page 1938, results 48426 - 48450

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Streamflow and water quality of the Grand Calumet River, Lake County, Indiana, and Cook County, Illinois, October 1984
Charles G. Crawford, David J. Wangsness
1987, Water-Resources Investigations Report 86-4208
A diel (24-hour) water-quality survey was done to investigate the sources of dry-weather waste inputs attributable to other than permitted point-source effluent and to evaluate the waste-load assimilative capacity of the Grand Calumet River, Lake County, Indiana, and Cook County, Illinois, in October 1984. Flow in the Grand Calumet River...
Hydrogeology, chemical quality, and availability of ground water in the Upper Floridan aquifer, Albany area, Georgia
D.W. Hicks, H.E. Gill, S.A. Longsworth
1987, Water-Resources Investigations Report 87-4145
Large withdrawals of groundwater in the 1500 sq mi Albany area of southwestern Georgia have lowered water levels in deep aquifers as much as 140 ft. This study was conducted to evaluate the development potential of the shallow Upper Floridan aquifer as an alternate source of groundwater, especially for public...
Magnitude and frequency of floods in Arkansas
B.L. Neely
1987, Water-Resources Investigations Report 86-4335
The magnitude and frequency of peak discharges on streams in Arkansas, were estimated through the use of comprehensive regression analyses, in which physical characteristics of streams were related to flood characteristics at gaging stations. Equations derived from the regression analyses provide estimates of peak discharges with selected recurrence intervals from...
Documentation of computer program VS2D to solve the equations of fluid flow in variably saturated porous media
E.G. Lappala, R. W. Healy, E.P. Weeks
1987, Water-Resources Investigations Report 83-4099
This report documents FORTRAN computer code for solving problems involving variably saturated single-phase flow in porous media. The flow equation is written with total hydraulic potential as the dependent variable, which allows straightforward treatment of both saturated and unsaturated conditions. The spatial derivatives in the flow equation are approximated by...
Method for estimating the magnitude and frequency of floods at ungaged sites on unregulated rural streams in Iowa
O. G. Lara
1987, Water-Resources Investigations Report 87-4132
This report provides techniques and procedures for estimating the probable magnitude and frequency of floods at ungaged sites on Iowa streams. Physiographic characteristics were used to define the boundaries of five hydrologic regions. Regional regression equations that relate the size of the drainage area to flood magnitude are defined for...
Water quality of Calero Reservoir, Santa Clara County, California, 1981-83
D.G. Clifton, I.S. Gloege
1987, Water-Resources Investigations Report 86-4105
Data were collected from December 1980 to September 1983 to describe water quality conditions of Calero Reservoir and the Almaden-Calero canal, Santa Clara County, California. Results show that water in Calero Reservoir and the canal generally met water quality criteria, as identified by the California Regional Water Quality Control Board...
Analysis of sediment production from two small semiarid basins in Wyoming
J.G. Rankl
1987, Water-Resources Investigations Report 85-4314
Data were collected at two small, semiarid basins in Wyoming to determine the relation between rainfall, runoff, and sediment production. The basins were Dugout Creek tributary and Saint Marys Ditch tributary. Sufficient rainfall and runoff data were collected at Dugout Creek tributary to determine the source of sediment and the...
Hydrology and water-quality at the Weldon Spring radioactive waste-disposal sites, St. Charles County, Missouri
M. J. Kleeschulte, L. F. Emmett
1987, Water-Resources Investigations Report 87-4169
Water samples from five monitoring wells adjacent to raffinate pits storing low-level radioactive waste contained concentrations of nitrate as nitrogen ranging from 53 to 990 milligrams per liter. Most samples also had maximum concentrations of calcium (900 milligrams per liter), sodium (340 milligrams per liter), sulfate (320 milligrams per liter),...
Preliminary hydrologic data for wells tested in Nash Draw, near the proposed Waste Isolation Pilot Plant site, southeastern New Mexico
S. F. Richey
1987, Open-File Report 87-37
Hydrologic testing was conducted at wells WIPP-25, WIPP-26, WIPP-27, WIPP-28, WIPP-29, and WIPP-30 in Nash Draw near the Waste Isolation Pilot Plant site in southeastern New Mexico. The three water-bearing zones tested were the Magenta Dolomite Member of the Rustler Formation, Culebra Dolomite Member of the Rustler Formation, and the...
Floods in Kansas and techniques for estimating their magnitude and frequency on unregulated streams
R.W. Clement
1987, Water-Resources Investigations Report 87-4008
Techniques are presented for generalizing the skewness coefficient of log-Pearson Type III distributions of annual maximum discharges and for flood magnitudes that have selected recurrence intervals from 2 to 100 yr. A weighted least-square (WLS) regression model was used to generalize the coefficients of station skewness that resulted in a...
Water resources of Walworth County, South Dakota
Jack Kume, Lewis Howells
1987, Water-Resources Investigations Report 85-4015
The water resources of Walworth County, South Dakota are for the most part undeveloped. In 1978, only about 10,000 acre-feet of water was used for irrigation, stock, domestic, and public supplies; most of this water came form Lake Oahe on the Missouri River, and was used for irrigation. The lake...
Flow model for open-channel reach or network
R.W. Schaffranek
1987, Professional Paper 1384
Formulation of a one-dimensional model for simulating unsteady flow in a single open-channel reach or in a network of interconnected channels is presented. The model is both general and flexible in that it can be used to simulate a wide range of flow conditions for various channel configurations. It is...
Movement and fate of ethylene dibromide (EDB) in ground water in Seminole County, Georgia
J. B. McConnell
1987, Water-Resources Investigations Report 87-4030
An investigation to assess the movement and fate of ethylene dibromide (EDB) in the Upper Floridan aquifer (formerly the principal artesian aquifer) was conducted, because a previous investigation conducted in August 1983, had found EDB contamination of the aquifer in about a 4 sq mi area in central Seminole County,...
Changes in water quality of Michigan streams near urban areas, 1973-84
D. J. Holtschlag
1987, Water-Resources Investigations Report 87-4035
Monthly water-quality monitoring of streams was begun by Michigan Department of Natural Resources in 1973 to (1) determine temporal and spatial variability, (2) detect long-term trends, and (3) describe changes in water quality near urban areas. This report provides a statistical analysis and summary of data collected from 1973 through...
Hydrogeology and ground-water quality of the northern part of the Town of Oyster Bay, Nassau County, New York, in 1980
Chabot Kilburn, R.K. Krulikas
1987, Water-Resources Investigations Report 85-4051
This report presents geohydrologic and water quality data from the northern part of the Town of Oyster Bay, in the north-shore area of Long Island. The groundwater reservoir underlying the area consists of clay, silt, sand, and gravel layers that form six geohydrologic units; from bottom to top: the Lloyd...
Effects on water quality due to flood-water detention by Barker and Addicks Reservoirs, Houston, Texas
Fred Liscum, R.L. Goss, E.M. Paul
1987, Water-Resources Investigations Report 86-4356
The Barker and Addicks Reservoirs, located about 16 miles west of Houston, Texas, provide flood-detention storage for storm runoff. Of interest are the water-quality characteristics in the study area and changes in water quality during detention. Study area sampling sites were selected upstream along Buffalo Bayou for Barker Reservoir and...
Ground-water resources of Flagler County, Florida
A. S. Navoy, L. A. Bradner
1987, Water-Resources Investigations Report 87-4021
Groundwater is the only significant source of potable water in Flagler County. Usable water occurs in the Upper Floridan aquifer, the intermediate population is expected to place stresses on the water resources of the county. Although rainfall averages almost 50 in/yr, most of the water leaves as evapotranspiration and streamflow....