BEGINNING IN JUNE OF 1995 AND CONTINUING THROUGH APRIL OF 2000, RESPONDENT DISCHARGED TOTAL ZINC, TOTAL SUSPENDED SOLIDS, OIL & GREASE, AND TOTAL RESIDUAL CHLORINE, IN AMOUNTS EXCEEDING THE EFFLUENT LIMITS OF ITS 1989 AND 1998 NPDES PERMITS AND SECTIONS 402 AND 301 OF THE CLEAN WATER ACT, 33 U.S.C. SECTIONS 1342 AND 1311.