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Page 4432, results 110776 - 110800

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Hydrologic data for the Weldon Spring radioactive waste-disposal sites, St. Charles County, Missouri; 1984-1986
M. J. Kleeschulte, L. F. Emmett, J.H. Barks
1986, Open-File Report 86-488
Hydrologic and water quality data were collected during an investigation of the Weldon Spring radioactive waste disposal sites and surroundings area in St. Charles County, Missouri, from 1984 to 1986. The data consists of water quality analyses of samples collected from 45 groundwater and 27 surface water sites. This includes...
Influence of size-fractioning techniques on concentrations of selected trace metals in bottom materials from two streams in northeastern Ohio
G. F. Koltun, Dennis R. Helsel
1986, Water-Resources Investigations Report 86-4114
Identical stream-bottom material samples, when fractioned to the same size by different techniques, may contain significantly different trace-metal concentrations. Precision of techniques also may differ, which could affect the ability to discriminate between size-fractioned bottom-material samples having different metal concentrations. Bottom-material samples fractioned to less than 0.020 millimeters by means...
Annual summary of ground-water conditions in Arizona, spring 1984 to spring 1985
Water Resources Division, U.S. Geological Survey
1986, Open-File Report 86-422-W
In arid and semiarid regions such as Arizona, the availability of adequate water supplies has a significant influence on the type and extent of economic development. About two-thirds of the water used in the State is groundwater. The nature and extent of the groundwater reservoirs must be known for proper...
Ground-water levels and use of water for irrigation in the Saratoga Valley, south-central Wyoming, 1980-81
L. W. Lenfest
1986, Water-Resources Investigations Report 84-4040
Although surface water is the principal source of irrigation water in the Saratoga Valley, Wyoming, development of groundwater for irrigation is increasing. Most of the 30 irrigation wells in the valley are capable of producing more than 200 gallons per minute. Approximately 2,700 acre-feet of groundwater for irrigation were pumped...
Preliminary evaluation of the Highland Rim aquifer system in Tennessee for receiving injected wastes
M. W. Bradley
1986, Water-Resources Investigations Report 85-4252
The EPA has authority under the Safe Drinking Water Act to protect underground sources of drinking water from contamination by deep well injection. An aquifer, however, may be exempted from protection and used for injected wastes where the aquifer meets criteria established in the Agency 's Underground Injection Control program....
Preliminary evaluation of the Knox Group in Tennessee for receiving injected wastes
M. W. Bradley
1986, Water-Resources Investigations Report 85-4304
The EPA is authorized under the Safe Drinking Water Act to protect underground sources of drinking water from contamination. However, an aquifer may be exempted from protection and used for injected wastes where the aquifer meets criteria established in the EPA 's Underground Injection Control program. The Knox Group in...