THIS PROPOSES THE FILING OF A CIVIL ACTION PURSUANT TO SECTION 113(B) OF THE CAA, 42 USC 7413(B), AGAINST MONROE COUNTY, NY, FOR VIOLATIONS, AT THE COUNTY'S IOLA POWERHOUSE, OF THE OPACITY AND PARTICULATE EMISSION LIMITATIONSOF 6 NYCRR PART 227, A PORTION OF THE NYSIP, 40 CFR 52.1679. THE IOLA POWERHOUSE IS A STATIONARY COMBUSTION INSTALLA- TION USING SPREADER STOKERS, THAT HAS BEEN IN OPERATION PRI- OR TO 6/1/72 AND HAS A TOTAL HEAT INPUT EQUAL TO OR LESS THAN 300 MILLION BTU PER HOUR. THE FACILITY IS, THEREFORE, SUBJECT TO THE REQUIREMENTS OF PART 227. ON 4/22/85, AN EPA INSPECTOR OBSERVED VISIBLE EMISSIONS EXCEEDING BOTH THE 40% AND 20% OPACITY LIMITATIONS. ON 7/9-7/12, 1985 STACK TESTS CONDUCTED BY THE COUNTY'S CONTRACTORS AT THE POWERHOUSE RE- SULTED IN PARTICULATE EMISSIONS IN EXCESS OF 0.60 POUNDS PER MILLION BTU. EPA ISSUED THE COUNTY A NOV DATED 12/31/85, DESCRIBING THESE SIP VIOLATIONS. ON 5/18/86, EPA'S NEIC CONDUCTED A LIDAR INVESTIGATION AT THE IOLA POWERHOUSE. LIDAR IS AN APPROVED EPA REFERENCE METHOD FOR MEASURING OPA- CITY. THE LIDAR INVESTIGATION REVEALED VIOLATIONS OF BOTH THE 20% & 40% OPACITY LIMITATIONS. ON 6/3-6/4/86, THE COUN- TY PERFORMED ANOTHER STACK TEST WHICH REVEALED PARTICULATE EMISSIONS IN EXCESS OF THE PART 227 LIMITATION. AT A 3/14/86 CONFERENCE FOLLOWING THE ISSUANCE OF THE NOV, REPRESENTATIVES OF MONROE COUNTY EXPLAINED TO REGION 2 THAT THE COUNTY HAD EMBARKED UPON A COMPLIA