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Page 4584, results 114576 - 114600

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Nitrogen, sulfate, chloride, and manganese in ground water in the alluvial deposits of the South Platte River Valley near Greeley, Weld County, Colorado
N. G. Gaggiani
1984, Water-Resources Investigations Report 84-4088
Ground water from the valley-fill deposits of the South Platte River Valley and its tributaries is used extensively for agriculture in the study area, about 10 miles east of Greeley and about 50 miles northeast of Denver, Colorado. The valley-fill deposits, which consist of alluvial and terrace deposits, are in...
Evaluation of the ground-water resources of parts of Lancaster and Berks Counties, Pennsylvania
J. M. Gerhart, G.J. Lazorchick
1984, Water-Resources Investigations Report 84-4327
Secondary openings in bedrock are the avenues for virtually all ground-water flow in a 626-sqare-mile area in Lancaster and Berks Counties, Pennsylvania. The number, size, and interconnection of secondary openings are functions of lithology, depth, and topography. Ground water actively circulates to depths of 150 to 300 feet below land...
Investigation of ethylene dibromide (EDB) in ground water in Seminole County, Georgia
James B. McConnell, D.W. Hicks, L. E. Lowe, S.Z. Cohen, A.P. Jovanovich
1984, Circular 933
An investigation of ground water in Seminole County, Georgia, for ethylene dibromide (EDB) was conducted in August 1983 by the U.S. Geological Survey in cooperation with the Exposure Assessment Branch of the U.S. Environmental Protection Agency. The purpose of the investigation was to determine whether EDB, which was previously detected...
Storage analyses for ephemeral streams in semiarid regions
K. C. Glover
1984, Water-Resources Investigations Report 83-4078
A model has been developed for determining the probability of a reservoir being unable to provide a specified downstream water supply. By applying the model with a number of assumed storage capacities, the long-term water supply potential of a stream below a reservoir can be evaluated. Previous methods for determining...
The Georges Bank monitoring program, 1984: Analysis of trace metals in bottom sediments during the second year of monitoring
Michael H. Bothner, R.R. Rendigs, Esma Campbell, M. W. Doughten, C.M. Parmenter, M. J. Pickering, R. G. Johnson, J.R. Gillison
1984, Circular 936
Of the 12 elements analyzed in bulk (undifferentiated) sediments collected adjacent to drilling rigs on Georges Bank, only barium was found to increase in concentration during the drilling period (July 1981 until September 1982). The maximum postdrilling concentration of barium (a major element in drilling mud) reached 172 ppm in...
Ground-water conditions in the Cottonwood-West Oakley Fan area, south-central Idaho
T.K. Edwards, H.W. Young
1984, Water-Resources Investigations Report 84-4140
Intensive groundwater development in the Cottonwood-West Oakley Fan area, Cassia County, Idaho, has resulted in rapid water-level declines and establishment of two critical groundwater areas. A northwest-trending fault in nearly coincident with the boundary between the two critical groundwater areas. Southwest of the fault, water levels in limestone are as...
Effects of irrigating with wastewater on ground-water quality at Fort Carson Military Reservation golf course near Colorado Springs, Colorado
Patrick Edelmann
1984, Water-Resources Investigations Report 83-4268
Fort Carson Military Reservation has used treatment wastewater for irrigation of the Fort Carson golf course since 1971. The effect of applied wastewater on groundwater quality at Fort Carson golf course was evaluated using water levels and water-quality data from 20 observation wells. The water-quality constituents analyzed included dissolved solids,...
Quality of ground water in agricultural areas of the San Luis Valley, south-central Colorado
Patrick Edelmann, David R. Buckles
1984, Water-Resources Investigations Report 83-4281
The quality of ground water in the principal agricultural areas of the San Luis Valley, south-central Colorado was evaluated using chemical analyses of water collected from 57 wells completed in the unconfined aquifer and from 25 wells completed in the confined aquifer. Ground water in both aquifers generally contains dissolved-solids...