7/16/99: POSITECH CORP OPERATES TWO CHROMIUM ELECTROPLATING TANKS WHICH IT USES FOR HARD CHROMIUM ELECTROPLATING AS D EFINED AT 40 C.F.R. a 63.41(A). THE TANKS ARE EXISTING AFF ECTED SOURCES AS DEFINED AT 40 C.F.R. a 63.2, AND ARE REGUL ATED BY THE NATIONAL EMISSIONS STANDARDS FOR CHROMIUM EMISSI ONS FROM HARD AND DECORATIVE CHROMIUM ANODIZING TANKS SET FO RTH AT 40 C.F.R PART 63, SUBPART N AND PROMULGATED PURSUANT TO SECTION 112(D) OF THE CLEAN AIR ACT. POSITECH FAILED TO PROVIDE ITS INITIAL NOTIFICATION BY JULY 24, 1995, PURSUANT TO 40 C.F.R. a 63.347(C)(1). POSITECH EXCEEDED THE CHROMIUM EMISSION LIMITATION FOR ITS TWO CHROMIUM ELECTROPLATING TAN KS FROM JANUARY 25, 1995, UNTIL SEPTEMBER 14, 1997, IN VIOLA TION OF 40 C.F.R. a 63.342(C)(1). POSITECH CONDUCTED PERFOR MANCE TESTING OF THE CHROMIUM ELECTROPLATING TANKS ON OCTOBE R 7, 1997, MORE THAN TWO MONTHS AFTER BEING REQUIRED BY 40 C .F.R. a 63.343(B).