Nitrate concentrations and potential sources in the Barton Springs segment of the Edwards Aquifer and its contributing zone, central Texas [electronic resource] / Barbara J. Mahler, MaryLynn Musgrove, and Chris Herrington.
Imprint
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2011]
Title from title screen (viewed on July 18, 2011).
"In cooperation with the City of Austin, City of Dripping Springs, Barton Springs/Edwards Aquifer Conservation District, Lower Colorado River Authority, Hays County, and Travis County."