"Hazardous waste contamination of water resources : (management of the Superfund clean-up program) : hearings before the Subcommittee on Investigations and Oversight of the Committee on Public Works and Transportation, House of Representatives, Ninety-eighth Congress, first session, March 4, 9, 1983"@en . . . . . . . . . . "Hazardous waste contamination of water resources (management of the Superfund clean-up program) : hearings before the Subcommittee on Investigations and Oversight of the Committee on Public Works and Transportation, House of Representatives, Ninety-eighth Congress, first session, March 4, 9, 1983"@en . . . . . . . . . . . . "United States. Environmental Protection Agency." . .