NATURE OF THE CASE: THE CITY OF DERIDDER IS LOCATED IN BEAUREGARD PARISH, LA. AND OPERATES THE CITY'S WASTEWATER TREATMENT FACILITY. THE CITY WAS REQUIRED TO SUBMIT AN APPROVABLE PRETREATMENT PROGRAM IN 1982 IN ACCORDANCE WITH THE CONDITIONS CONTAINED IN ITS NPDES PERMIT. TO DATE THE CITY HAS FAILED TO SUBMIT AN APPROVABLE PRETREATMENT PROGRAM AND HAS FAILED TO JUSTIFY THE THREE YEAR DELAY FOR A PROGRAM WHICH SHOULD TAKE ONLY SIX MONTHS TO DEVELOP. THIS SUIT IS REQUESTED PURSUANT TO SECTION 309 OF THE CLEAN WATER ACT. CAUSE OF ACTION: THE CITY'S WASTEWATER TREATMENT FACILITY HAS EXPERIENCED SEVERAL OPERATIONAL AND MAINTENANCE PROB- LEMS. THE CITY TREATS THE WASTEWATER OF SEVERAL DIFFERENT INDUSTRIES EACH DAY. THE EXACT NUMBER OF INDUSTRIES IS UNKNOWN SINCE THE CITY'S INDUSTRIAL SURVEY SUBMITTAL, PART OF THE PRETREATMENT REGULATION REQUIREMENTS, WAS INCOMP- LETE AND CONTAINED CONFLICTING INFORMATION. THE CITY HAS ALSO EXPERIENCED PERMIT EFFLUENT VIOLATIONS WHICH MAY AT LEAST IN PART BE ATTRIBUTABLE TO INDUSTRIAL INFLUENT. A PRETREATMENT PROGRAM COULD ADEQUATELY ASCERTAIN WHE- THER A PROBLEM EXISTS AND ACCURATELY IDENTIFY THE MAJOR CAUSE(S). ALSO, A PRETREATMENT PROGRAM WOULD ADEQUATELY ADDRESS ANY OTHER INDUSTRIAL INFLUENT PROBLEMS. ADDITION- ALLY, A RECENT INSPECTION NOTED BYPASS PROBLEMS AT THE FACILITY, INCOMPLETE NONCOMPLIANCE