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Off-Site Assessment Work Plan QUICK N SAVE #1 1901 South EI Dorado Street, Stockton , California 1 .0 . INTRODUCTION At the request of Mr. Mohamad Matar, Advanced GeoEnvironmental , Inc. (AGE) has prepared this Off-Site Assessment Work Plan for 1901 South EI Dorado Street , Stockton , California (site) . The work plan was prepared as required by the San Joaquin County Environmental Health Department (SJCEHD) letter dated 08 J41 d9 2014 , to continue delineation of the lateral extent of petroleum hydrocarbon-impact to groundwater plume, specifically off-site east approximately 300 feet downgradient of site , east monitoring well MW-5 and cone penetration testing (CPT) borings CPT-5 and CPT-8 . A copy of the SJCEHD directive letter is included in Appendix A. 11 OAA, The location of the site is illustrated on Figure 1 ; a plan of the site is illustrated on Figure 2 . A map detailing offsite boring locations is included as Figure 3 :�This work plan was prepared in accordance with the CVRWQCB guidelines for the investigation of underground storage tank (UST) sites . 2 .0. SCOPE OF WORK Based on analytical data from monitoring well MW-5 (north side of 5th Street located east of South EI Dorado Street) and CPT borings CPT-5 (west sidewalk of Hunter Street) , CPT-6 (alley way north 5th street) and CPT-8 (alley way directly south of 5th street) — data in Table 1 ; the lateral , down-gradient extent of the hydrocarbon-impacted groundwater is not defined generally off-site and east of the UST area in the intermediate water bearing zone (generally defined as the 75 to 80 foot below surface grade [bsg] zone . The SJCEHD has required that additional groundwater investigation be performed to define and confirm the lateral extent of the dissolved petroleum hydrocarbon contamination east of MW-5 and CPT borings CPT-5 and CPT-8 ( Figures 2 and 3) . Table 3 summarizes groundwater analytical results from the site . The proposed scope of work will include the following tasks : • Permitting and pre-field work activities ; • Soil boring advancement and sample collection ; • Installation of additional intermediate zone wells ; and • Report preparation . Each of these tasks is described in greater detail below. Advanced GeoEnvironmentnl Inc.