Title: Groundwater quality in the Rio Grande aquifer system, southwestern United States
Abstract: First posted December 7, 2017 For additional information, contact: National Water-Quality Assessment (NAWQA) ProgramU.S. Geological Survey413 National Center12201 Sunrise Valley DriveReston, Virginia 20192 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 (Burow and Belitz, 2014). The Rio Grande aquifer system constitutes one of the important areas being evaluated.