Publications
Read publications and other informational products to learn more about USGS science occurring in Region 6.
Filter Total Items: 1628
Compilation of hydrologic data for the Edwards aquifer, San Antonio area, Texas, 1986, with 1934-86 summary Compilation of hydrologic data for the Edwards aquifer, San Antonio area, Texas, 1986, with 1934-86 summary
No abstract available.
Authors
G. B. Ozuna, G.M. Nalley, W.G. Stein
Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife Refuge, Texas, 1986-87 Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife Refuge, Texas, 1986-87
In 1986, the Department of the Interior conducted reconnaissance investigations in nine areas of the western conterminous United States to determine whether irrigation drainage has caused or has the potential to cause harmful effects to human health, fish, and wildlife, or may adversely affect the suitability of water for beneficial uses. Data collected in the lower Rio Grande valley and...
Authors
Frank C. Wells, Gerry A. Jackson, William J. Rogers
Water resources data for Texas, water year 1987, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins Water resources data for Texas, water year 1987, volume 2. San Jacinto River, Brazos River, San Bernard River basins, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, E.R. Carrillo, H.J. Davidson
Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts
The Edwards aquifer is a complexly faulted, carbonate aquifer lying within the Balcones fault zone of south-central Texas. The aquifer consists of thin- to massive-bedded limestone and dolomite, most of which is in the form of mudstones and wackestones. Well-developed secondary porosity has formed in association with former erosional surfaces within the carbonate rocks, within...
Authors
Robert W. Maclay, Larry F. Land
Approximate altitude of water levels in wells in the Chicot and Evangeline aquifers in the Houston area, Texas, spring 1988 Approximate altitude of water levels in wells in the Chicot and Evangeline aquifers in the Houston area, Texas, spring 1988
Two maps show water levels in wells in the Houston, Texas, area in the Chicot aquifer and the Evangeline aquifer, spring 1988. Both the Chicot and the Evangeline aquifers are composed of several sand layers with different potentiometric surfaces. These maps, however, show approximations of single potentiometric surfaces that represent composite hydraulic heads. (USGS)
Authors
R.K. Gabrysch, C.E. Ranzau, L.S. Coplin
Index of surface-water stations in Texas, January 1988 Index of surface-water stations in Texas, January 1988
As of January 1, 1988, the surface-water data-collection network in Texas included 368 continuous streamflow, 12 continuous or daily reservoir-content, 38 gage height, 15 crest-stage partia 1-record, 4 periodic discharge through range, 32 floodhydrocjraph partial-record, 9 flood-profile partial-record, 36 low-flow partial-record 45 daily chemical-quality, 19 continuous-recording water...
Water quality of Lake Austin and Town Lake, Austin, Texas Water quality of Lake Austin and Town Lake, Austin, Texas
Lake Austin and Town Lake are located on the Colorado River in Travis County, central Texas, and serve as a source of water for municipal and industrial water supplies, electrical-power generation, and recreation for more than 500,000 people in the Austin metropolitan area. Lake Austin, located immediately downstream of Lake Travis, extends for more than 20 miles into the western edge of...
Authors
Freeman L. Andrews, Frank C. Wells, Wanda J. Shelby, Emma McPherson
Compilation of hydrologic data for the Edwards Aquifer, San Antonio area, Texas, 1987, with 1934-87 summary Compilation of hydrologic data for the Edwards Aquifer, San Antonio area, Texas, 1987, with 1934-87 summary
No abstract available.
Authors
G.M. Nalley, P.L. Rettman
Water resources data for Texas, water year 1987, volume 1. Arkansas River, Red River, Sabine River, Neches River, Trinity River basins, and intervening and adjacent coastal basins Water resources data for Texas, water year 1987, volume 1. Arkansas River, Red River, Sabine River, Neches River, Trinity River basins, and intervening and adjacent coastal basins
No abstract available.
Authors
H.D. Buckner, E.R. Carrillo, H.J. Davidson
Reassessment of the Georgetown limestone as a hydrogeologic unit of the Edwards Aquifer, Georgetown area, Texas Reassessment of the Georgetown limestone as a hydrogeologic unit of the Edwards Aquifer, Georgetown area, Texas
The Edwards aquifer consists of geologic units known as the Comanche Peak (oldest) and Edwards Limestones, Kiamichi Formation, and Georgetown Limestone. The Edwards Limestone is the main water-bearing zone. The shallow geologic units dip to the east-southeast at a slope of 50 to 100 feet per mile in the Georgetown area. The Edwards aquifer extends from the western limits of the outcrop...
Authors
L. F. Land, M.E. Dorsey
Hydrologic data for urban studies in the Austin metropolitan area, Texas, 1986 Hydrologic data for urban studies in the Austin metropolitan area, Texas, 1986
The Geological Survey, in cooperation with the Texas Department of Water resources, began hydrologic studies in the Austin urban area in 1954. In cooperation with the city of Austin, the program was expanded in 1975 to include additional streamflow and rainfall-gaging stations, and the collection of surface water-quality data. In 1978, the program was expanded to include a ground-water...
Authors
J.D. Gordon, D.L. Pate, D.L. Slagle