ENVIRONMENTAL PROTECTION AGENCY REGARDING HEARINGS BEFORE THE SUBCOMMITTEE ON OF THE COMMITTEE ON PUBLIC WORKS UNITED STATES SENATE NINETY-THIRD CONGRESS FIRST SESSION 94-492 O APRIL 16, 17, AND 18, 1973 SERIAL NO. 93-H9 Printed for the use of the Committee on Public Works U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 1973 For sale by the Superintendent of Documents Stock Number 5270-01811 |