NATURE OF THE CASE: THE CITY OF ROGERSVILLE OWNS AND OP- ERATES A SEWAGE TRMT PLT SERVING A POPULATION OF 4,650. ROGERSVILLE HAS BEEN CONSISTENTLY VIOLATING ALL SUBSTANTIVE DISCHARGE LIMITS OF ITS NPDES PERMIT (EXCEPT FOR DISOLVED OX YGEN, AMMONIA-NITROGEN, AND PH) DURING ALL OF 1983 AND 1984. COMPLIANCE AND OPERATION AND MAINTENANCE PROBLEMS HAVE OCCURRED AT ROGERSVILLE SINCE AT LEAST MID-1979. RECOMMENDED ACTION: THIS REFERRAL IS INTENDED TO REMEDY FOUR PROBLEMS: (1) IMPROPER DESIGN AND OPERATION AND MAIN- TENANCE OF THE PLANT WHICH CAUSED THE SUBSTANTIVE NPDES VIO- LATIONS; (2) IMPROPER LAB AND SAMPLING PROCEDURES IN VIOLA- TION OF OTHER PROVISIONS IN THE NPDES PERMIT; (3) UNAUTHOR- IZED OVERFLOW(S) OF SEWAGE AT POINTS IN THE 2-MILE OUTFALL PIPE, IN VIOLATION OF CWA SECTION 301; AND (4) FAILURE TO MEET PRETREATMENT REQUIREMENTS IN THE NPDES PERMIT INCLUDING PROBABLE FAILURE TO IMPOSE SUFFICIENTLY STRINGENT PRETREAT- MENT REQUIREMENTS ON TRW, AN INDUSTRIAL USER.