"Key drinking water issues on the agenda in the 109th Congress have included problems caused by specific contaminants, such as the gasoline additive methyl tertiary butyl ether (MTBE), and perchlorate, as well as the related issue of the appropriate federal role in providing financial assistance for water infrastructure projects. Congress last reauthorized the Safe Drinking Water Act (SDWA) in 1996, and although funding authority for most SDWA programs expired in FY2003, broad reauthorization efforts are not expected as EPA, states, and water systems remain busy implementing the 1996 amendments. Congress included provisions in the Energy Policy Act of 2005 (P.L. 109-58, H.R. 6) to address existing MTBE contamination of water and to better prevent future problems. The act authorizes funding from the Leaking Underground Storage Tank Trust Fund for the cleanup of MTBE releases and adds leak prevention provisions to the federal underground storage tank regulatory program. The Energy Policy Act also prevents EPA from regulating the underground injection of fluids (other than diesel fuel) into drinking water sources for hydraulic fracturing purposes related to oil, gas and geothermal production."
CRS Issue Brief for Congress, IB10118
National Council for Science and the Environment: http://ncseonline.org/index.cfm?