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Stantec Consulting Corporation ` 15575 Los Gatos Boulevard Building C Los Gatos CA 95032 Tel: (408)356-6124 Fax: (408)356-6138 Stantec December 19, 2008 San Joaquin County Environmental Health Department 600 East Main Street, Stockton, CA 95202-3029 Reference: Work Plan for Phase II Environmental Site Assessment, Tokay Tires (DEX#5130), 125 East Lodi Avenue, Lodi, CA At the request of Goodyear Tire & Rubber Company (Goodyear), Stantec Consulting Corporation (Stantec [formerly SECOR International Incorporated]) is submitting this Work Plan to conduct a Phase II Environmental Site Assessment (ESA) at the above referenced site. This Work Plan has been prepared for the San Joaquin County Environmental Health Department (SJCEHD) as part of the Subsurface Drilling Application approval process. A copy of the Subsurface Drilling Application is provided as Attachment A. The objective of the ESA is to complete a due diligence investigation to evaluate the environmental condition of the Site in order to establish an environmental baseline. The Phase II Limited Subsurface Investigation was designed to evaluate whether there was evidence that the property had been environmentally impacted and whether remediation of the impacted area may be required under local, State or Federal regulations. Goodyear is conducting the proposed subsurface investigation as part of a due diligence effort associated with the referenced Site. The proposed investigation includes the following tasks: • Advance approximately 7 direct push (GeoProbe�) borings at locations designated on the Attachment B to assess the potential vertical distribution of petroleum hydrocarbons and volatile organic compounds, including fuel oxygenates, in soil and groundwater in the vicinity of the in-ground hydraulic lifts, a sand/grease separator(OWS), and a former underground storage tank (UST); • Collect soil and "grab" groundwater samples (if encountered) from each of the borings and analyze selected samples for total petroleum hydrocarbons as diesel (TPHd), hydraulic oil (TPHo), and gasoline (TPHg), and volatile organic compounds (VOCs); • Prepare a summary report documenting the findings of the investigation. BACKGROUND The Site is located west of the intersection of East Stockton Boulevard and East Lodi Avenue. East Lodi Avenue is heavily developed with industrial and commercial businesses. Tokay Tire has operated as a retail tire service center since approximately 1979. One 385-gallon concrete OWS was observed in the concrete apron along the eastern storage area wall north of the service bays. No evidence of an existing UST was observed at the Site during Stantec's Site reconnaissance. Based upon a review of available building permits, one approximately 550-gallon waste oil UST was installed in the concrete apron north of the service bays, and the Site personnel believed that the UST was removed in approximately 1998.