01819oam 2200433 a 450 991069597210332120070718112629.0(CKB)5470000002374078(OCoLC)123538365(EXLCZ)99547000000237407820070426d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierPerchlorate[electronic resource] EPA does not systematically track incidents of contamination : testimony before the Subcommittee on Environment and Hazardous Materials, House Committee on Energy and Commerce /statement of John B. Stephenson[Washington, D.C.] :U.S. Govt. Accountability Office,[2007]16 pages digital, PDF fileTestimony ;GAO-07-797 TTitle from title screen (viewed on Apr. 26, 2007)."For release on delivery ... Wednesday, April 25, 2007."Paper version available from: U.S. Govt. Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548.Includes bibliographical references.Perchlorate PerchloratesEnvironmental aspectsUnited StatesDrinking waterContaminationUnited StatesPerchloratesEnvironmental aspectsDrinking waterContaminationStephenson John B1380816United States.Congress.House.Committee on Energy and Commerce.Subcommittee on Environment and Hazardous Materials.United States.Government Accountability Office.EJBEJBGPOBOOK9910695972103321Perchlorate3456818UNINA