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r Coca-Cola Enterprises-West '."� USTEC job No. 90054.03 - 3,4,2 Distribution of Dissolved H drocarbonGroundwater— in the Groundwar groundwater at the site is illustrated The distribution of dissolved petroleum hydrocarbons in the te monitorimonitoring" on Figure 14. As indicated on the figure,TPH as gasoline was found in groundwater wells MW-1 and MW-2• Benzene was found to be present in groundwater monitoring wells concentrations above the State of California recommended MW-1 through cleanup MtiV-4 at conce p limit in the cleanu ction j action limit of 0.7 ppb. Benzene was detected below he benzeneacontaminant plumeorinis on-sites ost of t MW-5 and MW-6. USTEC believes that m � . however, at least one off-site downgradient groundwater monitoring well will be required to » evaluate the full lateral extent of the contamination plume. ;.l levels in the Diesel constituents were initially found to be present in low groundwater from monitoring wells MW-1.MW -2,MW-4,MW-5.and MW-6• Quarterly groundwater monitoring quarters indicates that the diesel concentrations remain only in e activities over the last thre groundwater monitoring well MW-2• .Y. 4.0 INITIAL REMEDIAL.ACTIONS d ` i An application for unconCroiled aeration of the contaminated sails based on soil certificates o analysis from the drilling operations were submitted to San Joaquin County Air Pollution Y Control District. The application was approved in a letter dated September 27, 1991. The soil from thupper aeration permit was contingent upon the exclusion of four drums containing treatmenl at Ogden I 20 feet from Borings B-1, B-2, and B-5. These drums were schedules Environmental Services,Stockton,California,however,due to permitting problems disposal of the facility, the contract was terminated. USTEC is presently making arrangements o p Documentation of the disposal will be submitted in a letter report to the San Joaquin Department sof Health. -- 17 i f f j