ON 4/21/83, EPA ISSUED A PSD PERMIT TO ABBOTT WITH RESPECT TO THE CONSTRUCTION & OPERATION OF A NEW DIESEL COGENERATION FACILITY. PERMIT CONDITION I(B) SPECIFIED THAT PARTICULATE EMISSIONS FROM THE DIESEL COGENERATION FACILITY ARE LIMITED TO 0.5 GRAM/HORSEPOWER-HOUR; PERMIT CONDITION I(F) SPECI- FIED THAT VISIBLE EMISSIONS FROM THE DIESEL COGENERATION FACILITY MAY NOT EXCEED 20% OPACITY. STACK TESTS CONDUCTED AT THE ABBOTT DIESEL COGENERATION FACILITY DURING THE PERIOD 2/6/85 THRU 2/7/85 REVEALED A PARTICULATE EMISSION RATE OF 0.95 GRAM/HORSEPOWER-HOUR. IN ADDITION, THE OPACITY OF EMISSIONS EMANATING FROM THE DIESEL COGENERATION FACILITY DURING 3 CONSECUTIVE 6-MINUTE SETS OF OBSERVATIONS MADE ON 2/7/85 AVERAGED 38.12%, 37.29% & 33.33% RESPECTIVELY. THESE VIOLATIONS OF PERMIT CONDITIONS OF THE PSD PERMIT CONSTITUTE VIOLATIONS OF 40 CFR 52.2729(B) AND 40 CFR 52.21(R)(1).