Publications
Scientific reports, journal articles, or general interest publications by USGS scientists in the Oklahoma-Texas Water Science Center are listed below. Publications span from 1898 to the present.
Filter Total Items: 1516
Determination of chlorinated insecticides in bottom sediment using an electron-capture gas chromatography screening method, Austin, Texas, 1991 and 1992
Twenty-two bottom-sediment samples were collected from Town Lake in Austin, Texas, in 1991 and 1992 and analyzed for chlorinated insecticides by a reconnaissance-quality, electron-capture gas chromatography screening method developed by the U.S. Geological Survey (USGS). Four different chlorinated insecticides (aldrin, chlordane, dieldrin, and p,p'-DDT) and two degradation products of p,p'-DDT (p,
Authors
Robert D. Brock, Lucinda K. Murtagh
Use of landsat thematic mapper data to identify crop types and estimate irrigated acreage, Uvalde and Medina counties, Texas, 1991
Landsat Thematic Mapper (TM) data were used to estimate that about 51,000 acres of crops were irrigated with water pumped from the Edwards aquifer in Uvalde and Medina Counties, Texas in 1991. Bands 2, 3,4, and 5 from a TM image for August 10,1991, were classified using the maximum-likelihood, unsupervised-classification procedure to identify the areas of crops irrigated in the two counties. Detai
Authors
L.H. Raymond, S.I. McFarlane
Hydrogeologic and water-quality data from wells near the Hueco Bolson Recharge Project area, El Paso, Texas, 1990 and 1991
Tertiary-treated wastewater currently (1991) is being injected into the Hueco bolson aquifer at a site in northeastern El Paso, Texas, to supplement the quantity of available freshwater. Hydrologic data were compiled and water-quality and bacterial data were collected from existing wells near the Hueco Bolson Recharge Project (HBRP) in August and September 1990 and 1991.
Borehole tracer tests indi
Authors
Robert D. Brock, Paul M. Buszka, Edward M. Godsy
Trinity River Basin, Texas
In 1991 the Trinity River Basin National Water-Quality Assessment (NAWQA) will include assessments of surface-water and ground-water quality. Initial efforts have focused on identifying water-quality issues in the basin and on the environmental factors underlying those issues. Physical characteristics described include climate, geology, soils, vegetation, physiography, and hydrology. Cultural char
Authors
Randy L. Ulery, Peter C. Van Metre, Allison S. Crossfield
Influence of redox environment and aqueous speciation on metal transport in groundwater: Preliminary results of tracer injection studies
No abstract available.
Authors
J. Davis, Kent D. Becher, B.A. Rea, A.S. Maest, S. P. Garabedian
National water summary 1990-91: Hydrologic events and stream water quality
National Water Summary 1990-91 Hydrologic Events and Stream Water Quality was planned to complement existing Federal-State water-quality reporting to the U.S. Congress that is required by the Clean Water Act of 1972. This act, formally known as the Federal Water Pollution Control Act Amendments of 1972 (Public Law 92-500), and its amendments in 1977,1979,1980,1981,1983, and 1987, is the principal
Water resources data Texas, water year 1992, volume 4. Ground water
No abstract available.
Authors
S. C. Gandara, H.D. Buckner, R. E. Jones
Water resources data Texas, water year 1992, volume 2. San Jacinto River basin, Brazos River basin, San Bernard River basin, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, F.L. Andrews, B.A. Hinds
Water resources data Texas, water year 1992, volume 1. Arkansas River basin, Red River basin, Sabine River basin, Neches River basin, Trinity River Basin, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, F.L. Andrews, B.A. Hinds
Water resources data Texas, water year 1992, volume 3. Colorado River basin, Lavaca River basin, Guadalupe River basin, Nueces River basin, Rio Grande basin, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, F.L. Andrews, B.A. Hinds
Historical potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas
The Edwards-Trinity aquifer system is a sequence of near-surface, hydraulically connected, Cretaceous carbonate and quartzose clastic rocks that underlie about 42,000 mi2 of west-central Texas (fig. 1). The aquifer system is currently (1991) being studied as a part of the U.S. Geological Survey's Regional Aquifer-System Analysis (RASA) program, which is intended to describe the regional hydrogeolo
Authors
Peter W. Bush, Ann F. Ardis, Kirby H. Wynn
Historical saturated thickness of the Edwards-Trinity aquifer system and selected contiguous hydraulically connected units, west-central Texas
The Edwards-Trinity Regional Aquifer-System Analysis (RASA) is one of 25 completed or ongoing studies conducted by the U.S. Geological Survey on regional aquifer systems that individually provide essential quantities of ground water to large parts of the country. Underlying about 42,000 mi2 of west-central Texas, the Edwards-Trinity aquifer system extends approximately from Atascosa County in the
Authors
Ann F. Ardis, Rene A. Barker