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CCE-West 11%wl "� &:" . <br /> 14655 Wicks Blvd. <br /> San Leandro, CA 94577 , <br /> (415) 667-6305 Fax: (415) 352 9415 Nov I St ern <br /> Coca-Cola nferprsses-West ENVIRONMENTAL HEALTH <br /> A Bottling System PERMIT/SERVICES <br /> REMEDIAL ACTION <br /> STOCKTON, CALIFORNIA <br /> U.S. Technical Environmental Consulting, Inc. (USTEC) has completed a Remedial Action Plan <br /> (RAP) for the abandoned Coca-Cola Enterprises- West (CCE-W)distribution facility,located at <br /> 1100 North Wilson Way, Stockton, California. <br /> The purpose of the RAP is to present a remediation system to cleanup the petroleum <br /> hydrocarbon contaminated soils and groundwater which occurred as a result of a leaking <br /> underground storage tank (UST) at the Stockton site. The extent of contamination is described <br /> in USTEC's Contamination Assessment Report (CAR) dated November 30, 1990. The CAR was <br /> approved by the San Joaquin County Public Health Services on February 11, 1991. <br /> The soils and groundwater will be remediated in-place by utilizing a vapor extraction system. <br /> The vapor extraction system will consist of eight vapor extraction wells screened in the <br /> contaminated soils, two of which will be screened down to the groundwater elevation. These <br /> wells will be piped to a blower which will vacuum air through the contaminated zones and <br /> remove the petroleum hydrocarbons. <br /> The contaminated extracted vapor will be connected to a thermal oxidizer. The thermal oxidizer <br /> will operate 24 hours per day at up to 600 cubic feet per minute and will be monitored remotely. <br /> The oxidizer is designed to destroy at least 95% of the volatile hydrocarbons. <br /> The proposed remediation system will be monitored weekly for the first 60 days, monthly for <br /> the next 6 months, and quarterly thereafter to gauge the effectiveness and progress of the site <br /> remediation. Monitoring will include recording of all flow rates,pressure drops through system <br /> components, and liquid level measurements. All routine, necessary, and preventative <br /> maintenance tasks will be documented. Brief quarterly reports will summarize all monitoring <br /> activities. All reports will be submitted to the San Joaquin County Public Health Services. <br /> The length of time required to complete remediation of the hydrocarbon-contaminated soil and <br /> groundwater identified beneath the Stockton site was estimated using a computer model. The <br /> computer analyses indicated that the remediation of the gasoline contamination should occur <br /> within 2 years of continuous system operation. The model also indicated that only about 13% <br /> of the diesel contamination would be remediated in 5 years. However, since 99% of the TPH <br /> diesel contamination is located within 25 feet of the ground surface, it may be possible to <br /> excavate the remaining diesel contaminated soils if the vapor extraction system fails to remediate <br /> the soils to a level acceptable to the State of California. <br /> All applicable permits required by the State, County, or City will be obtained before the system <br /> is started. <br /> Sincerely, <br /> COCA-COLA ENTERPRISES - WEST (CCE-W) <br /> Steve McConnell <br /> Division Manager Occupational Health/Safety <br />