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1.2.1 Phase 1 - Abandonment of Tank B Tank B was abandoned in place by Fabncare in 1974 The tank was abandoned in place because ' it was buned beneath a metal building located next to the Warehouse and Office Building. According to the Workplan for Permanent Closure of Underground Storage Tanks at the Fabricare Facdaty prepared by American Environmental Management Corporation (AEMC) on September 30, 1988, the tank abandonment consisted of filling the tank with sand, gravel and a cement slung mix The sand, gravel and cement mix was poured into the tank through the tank's ' fill pipe and filled to ground surface No soil borings were completed in the vicinity of this tank because it was abandoned pnor to the enactment of current UST regulations 1 1.2.2 Phase 2 - Soil Sampling in Vicinity of Tanks C and D ' American Environmental Management Corporation proposed in their September 30, 1988 workplan to abandon Tanks C and D in place by filling both tanks with a cement slurry mix Pnor to abandonment, soil samples were collected on December 1, 1988, adjacent to and directly beneath both ends of the two diesel USTs Angle bonngs were drilled at the north end of the tanks to collect soil samples from underneath the tanks Vertical borings were drilled at the south end of Tanks C and D due to clearance and space restrictions which prevented the drilling of angle borings in this area Toluene was the only purgeable aromatic constituent detected The highest detection of toluene from this sampling event was 0 089 parts per million (ppm) No other petroleum hydrocarbon constituents were detected in any of the soil samples Table 1 lists analytical results from this sampling event ' 1.2.3 Phase 3 - Removal of Tank A On January 6, 1989, Tank A was excavated and removed from the site Two soil samples were ' collected on January 9, 1989, one at each end of the excavation at approximately 14 feet bgs (Figure 2) Laboratory analyses indicated that a significant amount of petroleum hydrocarbon ' and aromatic volatile organic contamination had occurred in the vicinity of former Tank A The soil sample taken at the east end of the excavation (TPA-2) contained a concentration of 2,000 ' parts per million (ppm) of Total Petroleum Hydrocarbons (TPH) as gasoline, 7 9 ppm ethylbenzene, 1 1 ppm toluene, and 140 ppm xylenes Benzene and TPH-diesel were not detected above their detection limits in this soil sample The soil sample taken from the west end of the excavation (TPA-1) did not contain detectable concentrations of TPH-diesel, TPH- gasoline, benzene, toluene, ethylbenzene and xylenes (BTEX) _ 2