Statistical summary of water-quality data collected from selected wells and springs in the Edwards aquifer near San Antonio, Texas /

by Wells, Frank C.
Published 1985

Statistical summary of daily values data and trend analysis of dissolved-solids data at National Stream Quality Accounting Network (NASQAN) stations /

by Wells, Frank C.
Published 1983

Effects of October 1981 flood on the quantity and quality of water in selected streams and reservoirs in the Brazos River Basin, Texas /

by Wells, Frank C.
Published 1986

Areal and temporal variations in the quality of surface water in hydrologic accounting unit 120301, Upper Trinity River Basin, Texas /

by Wells, Frank C.
Published 1986

Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife R...

by Wells, Frank C.
Published 1988

Summary of statistical and trend analyses of selected water-quality data collected near the Big Thicket National Preserve, southeast Texas /

by Wells, Frank C.
Published 1985

Computation and use of volume-weighted-average concentrations to determine long-term variations of selected water-quality constituents in lakes and reservoirs /

by Wells, Frank C., Schertz, Terry L.
Published 1984

Statistical summary of daily values data and trend analysis of dissolved-solids data at National Stream Quality Accounting Network (NASQAN) stations /

by Wells, Frank C., Schertz, Terry L.
Published 1983

Sources of trends in water-quality data for selected streams in Texas, 1975-89 water years /

by Schertz, Terry L., Wells, Frank C., Ohe, Dane J.
Published 1994

Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife R...

by Wells, Frank C., Jackson, Gerry A., Rogers, William J. (William James), 1949-
Published 1988

Sources of trends in water-quality data for selected streams in Texas, 1975-89 water years /

by Schertz, Terry L.
Published 1994