NATURE OF THE CASE: ETHYL IS A LARGE MANUFACTURER OF PETROCHEMICAL & RE- LATED PRODUCTS WHICH OPERATES A POLYVINYL CHLORIDE PLANT IN BATON ROUGE. CAUSE OF ACTION: ETHYL HAS REPEATEDLY VIOL'D THE NATIONAL EMISSION STANDARD FOR VINYL CHLORIDE, SPECIFICALLY THE PROHIBITION AGAINST PREVENTABLE RELIEF VALVE DISCHARGES, 40 CFR SEC 61.65(A). THIS CASE INVOLVES A MUCH LARGER NUMBER OF VIOL'S & QUANTITY OF EMISSION THAN ANY OTHER VINYL CHLOR- IDE CASE. PROPOSED REMEDY: THE CIVIL ACTION SHOULD SEEK INJUNCTIVE RELIEF RE- QUIRING ETHYL TO INSTITUTE OPERATION & MAINTENANCE PRO- CEDURES, OPERATOR TRAINING & INSTALLATION OF EQUIPMENT DESIGNED TO PREVENT FUTURE RELIEF VALVE DISCHARGES. ETHYL SHOULD ALSO BE REQUIRED TO PAY A SUBSTANTIAL CIVIL PLTY. NATIONALLY SIGNIFICANT ISSUES: SINCE THE CASE INVOLVES NATIONALLY APPLICABLE STAND- ARDS, ITS RESOLUTION WILL HAVE PRECEDENTIAL EFFECT FOR ALL VINYL CHLORIDE CASES.