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7D .lo �rcl✓dt r � t , fi -Por L rexy +e r4A%11f40Jt Stantec August 6, 2014 Mr. Gabriel Gonzalez V, ; San Joaquin County Environmental Health Department ✓ SSP 600 East Main Street _ Stockton, CA 95202 l�/ `lbtz �ayticr� l , Re: Well Destruction Work Plan ARCO Service Station No, 2130 7906 North EI Dorado Street Pf`ov ,kj vj QS 16 Mme+ Stockton, California 95210 Dear Mr, Gonzalez: On behalf of Atlantic Richfield Company (ARC ) , a BP Affiliated Company, Stantec Consulting Services Inc. (Stantec) is submitting this well destruction work plan (Work Plan) as part of the closure package for the ARCO Service Station No. 2130 located at 7906 North EI Dorado Street in Stockton , CA (the "Site" , Figures 1 , 2, and 3) . The Site has been part of an environmental investigation case under the direction of the San Joaquin County Environmental Health Department (SJCEHD) . This Work Plan presents a detailed scope of work proposed for well destructions of monitoring and remediation wells, as required by SJCEHD letter dated August 23, 2013 (Attachment A) . Well construction details and the proposed well destruction method for each well are included below, in Table 1 , or in the Bore Logs (Attachment B) . Site Health and Safety Plan As required by the Occupational Health and Safety Administration (OSHA) " Hazardous Waste Operations and Emergency Response" guidelines (29 CFR 1910. 120) and by California Occupational Health and Safety Administration (Cal-OSHA) " Hazardous Waste Operations and Emergency Response" guidelines ( CCR Title 8, Section 5192) , the contractor will prepare a site specific Health and Safety Plan (HASP) . At a minimum, the HASP will define the proposed subsurface investigation activities, describe physical and chemical hazards that may be associated with the work, provide a map to the nearest emergency medical facility, and include material safety data sheets for any hazardous chemicals that will be used or produced during the work. A copy of the HASP will be available onsite at all times during field work. The field staff and contractors performing field activities will review the HASP prior to beginning field operations at the site, as described in this work plan . Permitting Prior to beginning field work, all necessary permits will be obtained from the SJCEHD and the City of Stockton including an encroachment permit for the 5 monitoring wells (MW-6, M (-7, MW_14, MW- 19, and MW-21 ) located in the right-of-ways of EI Dorado Street and Hammer Lane, Underground Utility Location and Clearance. Well locations will be marked or cleared of underground facilities prior to well destruction activities. As required by the California Design with community in mind