Publications

Analysis of discharge hydrographs for streamflow-gaging stations on the Nueces River at Cotulla, Tilden, and Simmons indicate that significant water losses occur along the 108-mile reach from Cotulla to Simmon during storm-runoff periods. Computed losses along the 83-mile reach from Cotulla to Tilden for 15 storm periods range from 32 to 59 percent of the total runoff volume passing the...

During 1982, about 275 wells located in a 4,680 square-mile area southwest of Corpus Christi, Texas were measured to determine water-levels and specific conductance of water in the Evangeline aquifer. A large cone of depression with a maximum depth of 200 feet below NGVD of 1929 was identified near Kingsville. This cone of depression affects most of Kleburg County and parts of other...

Hydrologic investigations of urban drainage basins in Texas were begun by the U.S. Geological Survey in 1954. These studies are now in progress in Austin and Houston. Studies were completed in the Fort Worth metropolitan area at the end of the 1977 water year, and in the Dallas metropolitan area at the end of the 1979 water year. The study in the San Antonio area was completed at the end...

No abstract available.

No abstract available.

This report, which was prepared in cooperation with the City of Hoston, the Harris-Galveston Coastal Subsidence District, and the Texas Department of Water Resources, presents data on water-level changes in the Chicot and Evangeline aquifers.

The Jasper (Miocene) aquifer is one of several important hydrologic units in the Gulf Coastal Plain. Because the Jasper aquifer underlies shallower aquifers in many areas, regional water withdrawals from the Jasper are not significant; however, it is capable of yielding 3,000 gallons per minute (200 liters per second) or more of water to wells in certain areas. The Jasper is underlain by...

No abstract available.

Somerville Lake in south-central Texas is a shallow lake, with a mean depth of 14 feet. The maximum depth of the submerged channel of Yegua Creek is usually less than 35 feet and in most areas of the lake the depth is less than 10 feet. Several factors including thermal circulation resulting from the cooling of surface water, wind action, and the large inflow volume in realtion to the...

A statistical summary is provided of the available continuous and once-daily discharge, specific-conductance, dissolved oxygen , water temperature, and pH data collected at NASQAN stations during the 1973-81 water years and documents the period of record on which the statistical calculations were based. In addition, dissolved-solids data are examined by regression analyses to determine...

No abstract available.

No abstract available.