USGS Survey Reports MTBE Findings

By | September 01, 2003
A U.S. Geological Survey (USGS) investigation has released its results on the abundance of MTBE in drinking water. The study found that MTBE is frequently found in underground and above-ground sources of drinking water but generally at low levels. The substance was in nearly nine percent of the drinking water sources examined but usually at levels of less than five micrograms per liter. In areas of the United States that heavily use reformulated gasoline, MTBE was found four to five times more often in source water. The three-part survey can be viewed at