LOCKHEED CORPORATION OWNS AND OPERATES A COMMERCIAL AND MILITARY AIRCRAFT MANUFACTURING BUSINESS IN BURBANK, CALIFORNIA THAT RECENTLY SCALED DOWN AND NOW MAKES ONLY AIRCRAFT PARTS. AS PART OF THE AIRCRAFT AND PARTS MANUFACTURING, LOCKHEED BURBANK PERFORMS METAL FINISHING OPERATIONS. LOCKHEED BURBANK DISCHARGES AN AVERAGE OF $440,000 GALLONS PER DAY (GPD) OF INDUSTRIAL WASTE FROM ITS FACILITY THROUGH MULTIPLE DISCHARGE POINTS INTO THE BURBANK AND LOS ANGELES SEWERS. LOCKHEED BURBANK REPEATEDLY VIOLATED THE CATEGORICAL PRETREATMENT STANDARD GOVERNING METAL FINISHING POINT SOURCES (40 C.F.R. PART 433 SUBPART A). LOCKHEED BURBANK FAILED TO COMPLY WITH THE GENERAL AND INDUSTRY SPECIFIC CATEGORICAL PROHIBITIONS AGAINST DILUTION AS A SUBSTITUTE FOR TREATMENT (40 C.F.R. PART 403.6(D) AND 433.15(C)).