FACILITY BACKGROUND: THE MOBIL OIL GAS STATION IS LOCATED AT 13150 SCHAEFFER HWY, DETROIT, MI 48227. THE FACILITY IS LOCATED ON A BUSY CORNER OF NORTHWEST DETROIT. THE SCHAEFFER HWY IS A HEAVILY TRAFFIC ROAD WITH THREE LANES ON EACH SIDE. THE FACILITY HAS A TOTAL OF THREE 10,000 GAL GASOLINE USTS MADE OF FIBER- GLASS REINFORCED PLASTIC. THE FACILITY IS LOCATED IN AN URBAN AREA. SENSITIVE ECO- SYSTEM NEARBY IS UNKNOWN. THE APPROXIMATEL AGE OF THE TANKS IS 4 YEARS. INSPECTION FINDINGS: OFFICERS HILL AND REME (THE INSPECTORS) ARRIVED AT THE MOBIL OIL AT 10:12 AM ON AUGUST 22, 2001 TO CONDUCT AN INSPECTION OF THIS FACILITY THREE UNDERGROUND STORAGE TANKS (USTS). WHILE TOURING THE AREA WHERE THE TANKS ARE LOCATED, THE INSPECTORS OBSERVED A BROKEN VENT PIPE FOR ONE OF THE TANKS. OFFICER REME ADVISED MR. DABAJA THAT IT WOULD BE IN HIS BEST INTEREST TO COME INTO COMPLIANCE AS SOON AS POSSIBLE WITH THE BROKEN VENT PIPE. MR. DABAJA INDICATED THAT HE WOULD HAVE SOMEONE STARTING ON IT TODAY. THE MOBIL OIL SS#03-DEN WAS ISSUED A FIELD CITATION FOR THE AMOUNT OF $150.00 FOR THE FOLLOWING VIOLATION: 1. 40 CFR 280.33(A) - FAILURE TO REPAIR UST SYSTEN IN ACCOR- DANCE WITH ACCEPTED CODES AND STANDARDS - $150.00. ON SEPTEMBER, MR, IMAN DABAJA, OWN