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SECOR - -www.segore—m <br /> IN <br /> INTERNATIONAL 3017 Kllgare Road,Suite 100-- <br /> + RINCORPORATED Rancho Cordova,CA 95670 <br /> 916-861-0400 TEL <br /> 916-861-0430 FAX <br /> December 3, 2007 G3ECEVED <br /> DEC 0 4 2007 <br /> Ms. Lori Duncan <br /> San Joaquin County EP4V1R09`1N1EIJT HEALTH <br /> Environmental Health Department PER (T�SER��ICES <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> RE: Work Plan for Well Abandonment <br /> Commingled Plume Site No. 34 <br /> ARCO Service Station No. 2133 and Chevron Service Station No. 9-4275 <br /> 2905 and 2908 West Benjamin Holt Drive <br /> Stockton, California <br /> SECOR Project No.: 77BP.02133.09.0002 <br /> Dear Ms. Duncan: <br /> On behalf of Atlantic Richfield Company, a BP Affiliated Company and Chevron Environmental <br /> Management Company, SECOR International Incorporated (SECOR) is submitting a work plan <br /> to properly abandon three offsite groundwater monitoring wells (BHD-1, E-7, and E-8) north and <br /> east, respectively, of the ARCO Service Station No. 2133. <br /> This work plan contains a site description and details the scope of work proposed for the well <br /> abandonment. <br /> SITE DESCRIPTION <br /> The ARCO 2133 facility and the Chevron 9-4275 facility (the site) are located at the intersection <br /> of Benjamin Holt Drive and Plymouth Road in Stockton, California. The site is located in a light <br /> commercial/residential area of Stockton in a relatively flat lying area. The ARCO 2133 facility is <br /> an operating service station with an AM/PM mini-mart that retails gasoline fuel with four <br /> underground storage tanks (USTs) and associated product lines and dispensers. Chevron <br /> 9-4275 station features include two double-walled, fiberglass USTs; mini-mart that retails <br /> gasoline fuel from six dispensers and associated product lines under a common canopy, and a <br /> car wash. <br /> PROPOSED SCOPE OF WORK <br /> The proposed scope of work included in this work plan consists of abandoning BHD-1, E-7, and <br /> E-8 due to the locations of the wells and the potential of physical hazardous risk while <br /> conducting routine sampling and other field work on these wells. <br /> WELL ABANDONMENT <br /> Task 1 - Preliminary Field Activities <br /> Health and Safety Plan <br /> As required by the Occupational Health and Safety Administration (OSHA) "Hazardous Waste <br /> Operations and Emergency Response" guidelines (29 CFR 1910.120), and by California <br /> Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste Operations and <br /> Emergency Response" guidelines (CCR Title 8, Section 5192), SECOR will prepare a site <br /> 2133 workplan well abandonment.doc SECOR Intemational Incorporated <br />