Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Statistical analysis of water-level, springflow, and streamflow data for the Edwards Aquifer in south-central Texas
Water-level, springflow, and streamflow data were used to develop simple and multiple linear-regression equations for use in estimating water levels in wells and the flow of three major springs in the Edwards aquifer in the eastern San Antonio area. The equations provide daily, monthly, and annual estimates that compare very favorably with observed data. Analyses of geologic and hydrologic data in
Authors
Celso Puente
Progress report on geology of the Edwards aquifer, San Antonio area, Texas, and preliminary interpretation of borehole geophysical and laboratory data on carbonate rocks
This report describes the geology and porosity of the rocks of the Edwards aquifer, with particular attention to the eastern half of the San Antonio area. The data were obtained from geologic and geophysical studies of nine cored test holes, from laboratory analyses of samples of the aquifer materials, and from recent stratigraphic studies by other investigators. The Georgetown Formation and the E
Authors
Robert W. Maclay, Ted A. Small
Salt-water encroachment in aquifers near the Houston Ship Channel, Texas
Interpretations based on analyses of inorganic constituents, dissolved organic carbon, and tritium in ground water and surface waters indicate that the Houston Ship Channel is the source of salt water that has been detected in shallow wells between Baytown and Houston, Texas. Analyses of the ratios of the stable isotopes of carbon, sulfur, hydrogen, and oxygen were inconclusive as to the source of
Authors
Donald G. Jorgensen
Hydrologic interpretation of geophysical data from the southeastern Hueco Bolson, El Paso, and Hudspeth Counties, Texas
Airborne-electromagnetic and earth-resistivity surveys were used to explore for fresh ground water in the Hueco Bolson southeast of El Paso, Texas. Aerial surveys were made along about 500 miles (800 km) of flight line, and 67 resistivity soundings were made along 110 miles (180 km) of profile. The surveys did not indicate the presence of any large bodies of fresh ground water, but several areas m
Authors
Joseph Spencer Gates, W. D. Stanley
The water quality of Livingston Reservoir on the Trinity River, Southeastern Texas
No abstract available.
Authors
Jack Rawson
Occurrence and distribution of color and hydrogen sulfide in water of the principal artesian aquifers in the Valdosta area, Georgia
Hydrogen sulfide and color occur in objectionable amounts in ground water from the principal artesian aquifer in the Valdosta , Ga., area. Generally, water from wells south of Valdosta is high in hydrogen sulfide; water from wells north of the city is high in color. Water with high sulfate is likely to be a problem in wells deeper than about 540 ft. Heavy pumpage concentrated in a small area may c
Authors
Richard E. Krause
Test drilling for ground water in Hudspeth, Culberson, and Presidio Counties in westernmost Texas
From November 1973 to October 1974, the U.S. Geological Survey drilled four deep test holes to supplement hydrologic and geophysical studies evaluating fresh ground water in the basins of westernmost Texas. For each test, samples of drill cuttings were collect·ed, borehole geophysical logs were run, and water samples were collected from specific zones.
The Leopold Guerra No. 1 test hole penetrated
Authors
Joseph Spencer Gates, Donald Edward White
Heat flow near Charleston, South Carolina
No abstract available.
Authors
John P. Ziagos, J. H. Sass, Robert J. Munroe
Sediment characteristics of streams in the eastern Piedmont and western Coastal Plain regions of North Carolina
The sediment-transport characteristics of streams were determined in a 15,500-square-kilometre (6,000-square-mile) area of the Coastal Plain and Piedmont regions of eastern North Carolina during 1969-73. The study covered all or parts of 21 counties and included data for 28 sediment-sampling stations in parts of 4 major river basins?the Roanoke, Pamlico, Neuse, and Cape Fear. Annual suspended-sedi
Authors
Clyde E. Simmons
Artificial ground-water recharge as a water-management technique on the southern High Plains of Texas and New Mexico
No abstract available.
Authors
Richmond F. Brown, Donald C. Signor, Warren W. Wood
Geochemical and isotopic analyses of waters associated with the Edwards Limestone aquifer, central Texas
No abstract available.
Authors
F. J. Pearson, P.L. Rettman
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1975
No abstract available.
Authors
R. A. Rappmund