Assessing carbonate aquifers


  • Randy Showstack


An assessment of water quality in 12 carbonate aquifers, mostly in the eastern and central United States, found that while water quality in the aquifers was highly variable, most of the samples met drinking water standards. The study, “Factors affecting water quality in selected carbonate aquifers in the United States, 1993–2005,” was released by the U.S. Geological Survey (USGS) on 26 June. According to the study, carbonate aquifers provide about 20% of the groundwater used as drinking water in the United States.