Welcome to the Kids' Library!

Detections, concentrations, and distributional patterns of compounds of emerging concern in the San

Opsahl, Stephen P., author.
Reston, Virginia : U.S. Geological Survey, 2013. 2013

Effects of urbanization on water quality in the Edwards Aquifer, San Antonio and Bexar County, Texas

Opsahl, Stephen P., author.
[Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2020. 2020

Science to support the understanding of south Texas surface-water and groundwater resources in a cha

Ockerman, Darwin J.
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2012] 2012