Groundwater quality in the Edwards-Trinity aquifer system
Groundwater provides nearly 50 percent of the Nation’s drinking water. To help protect this vital resource, the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Project assesses groundwater quality in aquifers that are important sources of drinking water. The Edwards-Trinity aquifer system constitutes one of the important aquifers being evaluated.
|Groundwater quality in the Edwards-Trinity aquifer system
|USGS Numbered Series
|USGS Publications Warehouse
|National Water Quality Assessment Program