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Page 4303, results 107551 - 107575

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Estimated sediment deposition in Lake Corpus Christi, Texas, 1972-85
Norman F. Leibbrand
1987, Open-File Report 87-239
The investigation of sediment deposition in Lake Corpus Christi was initiated by researching the published and unpublished sediment data for the 1972-85 water years for stations located upstream and downstream of the lake. Regression analysis was used to fill in the missing data. Data were tabulated for monthly discharge (acre-feet)...
Chemical characteristics of water in the surficial aquifer system, Dade County, Florida
W. H. Sonntag
1987, Water-Resources Investigations Report 87-4080
Geohydrologic test drilling was conducted throughout Dade County to describe the chemical characteristics of water from geohydrologic units in the surficial aquifer system. Water quality analysis of samples collected from the test wells completed in central Dade County indicates that the Biscayne aquifer (unit A), the upper clastic unit of...
Surface-geophysical investigations in Melton Valley, Oak Ridge Reservation, Tennessee
Patrick Tucci
1987, Water-Resources Investigations Report 87-4184
Surface geophysical methods were found to be valuable for refining knowledge of the geohydrology of Melton Valley, an area used for burial of low-level radioactive waste at the Oak Ridge Reservation in Tennessee. The valley is characterized by locally complex geologic structures in lithologies of interbedded shale and limestone. Radionuclides...
Cost effectiveness of the U.S. Geological Survey's stream-gaging program in Wisconsin
J.F. Walker, L.L. Osen, P.E. Hughes
1987, Water-Resources Investigations Report 86-4125
This report presents the results of a three-step evaluation of the stream-gaging program in Wisconsin. First, data uses and funding sources were identified for the 89 continuous-record gaging stations operated during the 1984 water year. Next, alternative methods of streamflow estimation were examined for three stations. A flow-routing model was...
Hydraulic analyses of water-surface profiles in the vicinity of the Coamo Dam and Highway 52 bridge, southern Puerto Rico: Flood analyses as related to the flood of October 7, 1985
K. G. Johnson, Ferdinand Quinones-Marquez, Ralph Gonzalez
1987, Water-Resources Investigations Report 87-4039
The magnitude, frequency and extent of the flood of October 7, 1985 at the Rio Coamo in the vicinity of the Coamo Dam and Highway 52 bridge in southern Puerto Rico, were investigated. The observed flood profiles were used to calibrate a step-backwater model. The calibrated model was then used...
Cost-effectiveness of the stream-gaging program in Missouri
L.A. Waite
1987, Water-Resources Investigations Report 87-4254
This report documents the results of an evaluation of the cost effectiveness of the 1986 stream-gaging program in Missouri. Alternative methods of developing streamflow information and cost-effective resource allocation were used to evaluate the Missouri program. Alternative methods were considered statewide, but the cost effective resource allocation study was restricted...
Vertical profiles of velocity and suspended sediment in streams near Mount St. Helens, Washington
R.L. Dinehart
1987, Open-File Report 87-377
Vertical profiles of high suspended-sediment concentrations and high velocities in stream near Mount St. Helens were measured between January 1981 and May 1986 at seven gaging stations. Data-collection methods are described and the numerical data are tabulated and plotted. Values for the exponent of the sediment-distribution equation were computed for...
Preliminary water-use estimates in the United States in 1985
W.B. Solley, R.R. Pierce, C.F. Merk
1987, Open-File Report 87-692
Preliminary 1985 water use estimates are tabulated by State for the Und States, Puerto Rico, the Virgin Islands, and the District of Columbia. Preliminary estimates of water withdrawn from surface water and groundwater sources for offstream water use categories are presented prior to publication of the final estimates in a...
Trace organic compounds in wet atmospheric deposition: an overview
T.R. Steinheimer, S.M. Johnson
1987, Water-Resources Investigations Report 87-4033
An overview of the occurrence of organic compounds in wet atmospheric deposition is given. Multiplicity of sources and problems associated with source identification are discussed. Available literature is reviewed by using citations from Chemical Abstracts and Water Resources Abstracts through June 1985 and includes reports published through December 1984 that...
Effluent migration from septic tank systems in two different lithologies, Broward County, Florida
B.G. Waller, Barbara Howie, C. R. Causaras
1987, Water-Resources Investigations Report 87-4075
Two septic tank test sites, one in sand and one in limestone, in Broward County, Florida, were analyzed for effluent migration. Groundwater from shallow wells, both in background areas and hydraulically down-gradient of the septic tank system, was sampled during a 16-month period from April 1983 through August 1984. Water...