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Coca-Cola Enterprises - West <br /> Job No. 90054 <br /> contamination is limited to the former gasoline UST location. The contaminated area is centered <br /> r— around boring B-1 and radiates out from B-1 about 15 feet to encompass B-2 through B-5. Total <br /> petroleum hydrocarbons above 100 ppm were found to be present in this location at depths <br /> down to 25 feet. <br /> 7.3 DISTRIBUTION OF DISSOLVED HYDROCARBONS IN GROUNDWATER <br /> The distribution of dissolved petroleum hydrocarbons in the groundwater at the site is <br /> illustrated on Figure 9. As indicated in the figure, TPH as gasoline was found only in <br /> groundwater monitoring well MW-1. Ber►zene was found to be present in groundwater <br /> monitoring wells MW-1 and MW-3 at concentrations below the recommended clean-up action <br /> limit of 0.7 ppb and was not detected in MW-1, MW-4 and MW-5. <br /> Diesel constituents were found to be present in low levels in the groundwater from monitoring <br /> wells MW-1, MW-2, MW-4, and MW-a. The full extent of diesel contamination has not been <br /> F evaluated at the present time. USTEC believes that most of the contaminant plume is on-site, <br /> however, at least one downgradient groundwater monitoring well will be required to evaluate <br /> the full extent of the diesel contamination plume. <br /> b s <br /> z <br /> 8.0 INITIAL SOILS REMEDIATION <br /> w <br /> Soil certificates of analysis from the drilling operations were submitted to San Joaquin County <br /> Air Pollution Control District where a determination was granted for uncontrolled aeration. <br /> The aeration permits are included in Appendix C and are contingent upon the incineration of <br /> drums containing soil from the upper 20 feet from Borings B-1,B-2,and B-5. These drums will <br /> be transported to Ogden Environmental Services, Stockton, California, and incinerated. <br /> 7. <br /> Documentation of the incineration will be presented in the Remedial Action Plan (RAP). <br /> 9.0 SUMMARY AND CONCLUSIONS <br /> - f <br /> U.S. Technical Environmental Consulting, Inc. has prepared this Contamination Assessment <br /> Report (CAR) for the abandoned Coca-Cola Enterprises - West distribution center located at <br /> 17 <br />