Program of the USGS in Texas
Evaluation of the Effects of Rangeland Management Practices on Water Quality and Quantity in the Seco Creek Basin Near San Antonio
PROBLEM
As the Edwards aquifer is subjected to increases in both use and the possibility of nonpoint source contamination from changes in land use or management practices. Methods to maintain or improve the quality or quantity of water available for recharge to the Edwards aquifer are necessary for future population demands. The U.S. Department of Agriculture in an effort to identify these relationships established the Seco Creek Demonstration Project.
OBJECTIVE
Assess the impact on water quality, quantity, sediment loading and recharge rates due to the implementation of best management practices conducted within the Seco Creek basin.
APPROACH
Monitoring stations have been established in order to determine baseline levels of discharge and water quality. As best management practices are implemented subsequent runoff events will be monitored for changes in water quality and water quantity as well as sediment loading. The sampling efforts will consist of three sets of water-quality samples and six sediment samples over the hydrograph five times a year. Recharge will be determined from monitoring efforts at the recharge reservoirs at evaluated for any changes.
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U.S. Department of the Interior |
U.S. Geological Survey