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68924 results.

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Page 1932, results 48276 - 48300

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Quantity and quality of urban runoff from the Chester Creek basin Anchorage, Alaska
T. P. Brabets
1987, Water-Resources Investigations Report 86-4312
Urbanization has affected both the flow characteristics and water quality of streams in the Chester Creek basin, of Anchorage, Alaska. Peak flows are higher in the urban rather than rural parts of the basin, and the percent of effective impervious area has a significant effect on storm runoff volumes and...
Preliminary assessment of potential well yields and the potential for artificial recharge of the Elm and Middle James aquifers in the Aberdeen area, South Dakota
P.J. Emmons
1987, Water-Resources Investigations Report 87-4017
A complex hydrologic system exists in the glacial drift overlying the bedrock in the Aberdeen, South Dakota, area. The hydrologic system has been subdivided into three aquifers: the Elm, Middle James, and Deep James. These sand-and-gravel outwash aquifers generally are separated from each other by till or other fine-grained sediments....
Application of techniques to identify coal-mine and power-generation effects on surface-water quality, San Juan River basin, New Mexico and Colorado
C. L. Goetz, Cynthia G. Abeyta, E.V. Thomas
1987, Water-Resources Investigations Report 86-4076
Numerous analytical techniques were applied to determine water quality changes in the San Juan River basin upstream of Shiprock , New Mexico. Eight techniques were used to analyze hydrologic data such as: precipitation, water quality, and streamflow. The eight methods used are: (1) Piper diagram, (2) time-series plot, (3) frequency...
Geohydrology and susceptibility of major aquifers to surface contamination in Alabama; area 1
C. R. Bossong, W. F. Harris
1987, Water-Resources Investigations Report 87-4068
This report delineates and describes the geohydrology and susceptibility of the major aquifers to contamination in Area 1 - Colbert, Franklin, Lauderdale, Lawrence, Limeston, Madison, and Morgan Counties. Most of the area is underlain by a Mississippian carbonate sequence that includes two major aquifers, the Tuscumbia-Fort Payne aquifer and the...
The relation of streamflow to habitat for anadromous fish in the Stillaguamish River basin, Washington
S.S. Embrey
1987, Water-Resources Investigations Report 86-4326
The techniques of Instream Flow Incremental Methodology were used to determine the habitat available over a range of simulated streamflows for anadromous fish in certain reaches of streams in the Stillaguamish River basin, Washington. The stream discharge-habitat relations were used to identify that discharge termed the optimum discharge, which provides...
Development of ground-water resources in the Orange County area, Texas and Louisiana, 1980-Spring of 1985
C.W. Bonnet, James Frank Williams III
1987, Water-Resources Investigations Report 87-4158
This report updates ground-water information pertaining to the lower unit of the Chicot aquifer in the Orange County area, Texas and Louisiana. The period of data collection was from 1980 to the spring of 1985. Some data collected prior to 1980 are presented to establish long-term trends and relations. The...
Cenozoic stratigraphy and geologic history of the Tucson Basin, Pima County, Arizona
S. R. Anderson
1987, Water-Resources Investigations Report 87-4190
This report was prepared as part of a geohydrologic study of the Tucson basin conducted by the U.S. Geological Survey in cooperation with the city of Tucson. Geologic data from more than 500 water supply and test wells were analyzed to define characteristics of the basin sediments that may affect...
Water resources near Dillingham in the Bristol Bay Area, Alaska
R. L. Glass
1987, Water-Resources Investigations Report 87-4141
Dillingham, the largest community in the Bristol Bay area of Alaska, lies near the confluence of the Wood and Nushagak Rivers. Mean annual discharges for the Wood and Nushagak Rivers are 4,824 and 22,650 cu ft/sec. Flows generally are greatest in May through July and lowest in January through April....
Water quality in the lower Puyallup River valley and adjacent uplands, Pierce County, Washington
J.C. Ebbert, Gilbert C. Bortleson, L. A. Fuste, E. A. Prych
1987, Water-Resources Investigations Report 86-4154
The quality of most ground and surface water within and adjacent to the lower Puyallup River valley is suitable for most typical uses; however, some degradation of shallow groundwater quality has occurred. High concentrations of iron and manganese were found in groundwater, sampled at depths of < 40 ft, from...
Hydrogeology of the Socorro and La Jencia basins, Socorro County, New Mexico
Scott K. Anderholm
1987, Water-Resources Investigations Report 84-4342
The Socorro and La Jencia Basins are located in central Socorro County, New Mexico. The principal aquifer system in the Socorro and La Jencia Basins consists of, in descending order, the shallow aquifer, the Popotosa confining bed, and the Popotosa aquifer. The minor aquifer systems, which are dominant along the...
Effects of coal strip mining on stream water quality and biology, southwestern Washington
L. A. Fuste, D. F. Meyer
1987, Water-Resources Investigations Report 86-4056
Strip mining for coal in southwestern Washington may be affecting the water quality of streams. To investigate these possible effects, five streams were selected for study of water quality in each of the two coal bearing areas: the Centralia-Chehalis coal district, and Kelso-Castle Rock coal area. In the Centralia-Chehalis coal...
Reconnaissance investigation of sediment distribution, erosion, and transport in the upper Deschutes River, Deschutes County, Oregon, November 1986
K. A. Cameron, J. J. Major
1987, Water-Resources Investigations Report 87-4114
A preliminary investigation of sediment distribution, erosion, and transport in the upper Deschutes River was conducted in response to the perceived problem that brown trout spawning gravels were being rendered unusable due to an accumulation of fine-grained sediment. Contrary to the contention that channel gravels are being covered by fine-grained...
Records of wells and chemical analyses of ground water in Campbell County, South Dakota
K.M. Neitzert, N.C. Koch
1987, Open-File Report 87-42
Well and chemical groundwater data contained in two tables were collected during a 3-yr study started in 1964 to determine the geology and water resources of Campbell County, South Dakota. Physical, hydrologic, and geologic data for 631 wells and test holes have been entered into computer storage in the Groundwater...
Data for selected pesticides and volatile organic compounds for wells in the western San Joaquin Valley, California, February to July 1985
J. M. Neil
1987, Open-File Report 87-48
During February to July 1985, water samples were collected from 55 wells in the western San Joaquin Valley, California, for chemical analysis to determine if 20 selected pesticides and 26 volatile organic compounds were present. Twenty-six of the sampled wells are completed in the shallow unconfined regional aquifer and 29...