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it\ <br />Stantec Consulting Services Inc. <br />555 Capitol Mall Suite 650, Sacramento CA 95814-4583 <br />October 4, 2018 <br />File: 185750719 <br />Attention: San Joaquin County Environmental Health Department <br />1868 Hazelton Avenue <br />Stockton, CA 95205-6232 <br />Reference: Soil and Groundwater Investigation Work Plan <br />7-Eleven Store #20632 <br />4627 Da Vinci Drive <br />Stockton, California <br />This work plan, prepared by Stantec Consulting Services Inc. (Stantec) on behalf of 7-Eleven, Inc., <br />describes the proposed advancement of direct-push borings to pre-profile soil and groundwater at 7-Eleven <br />Store #20632, located at 4627 Da Vinci Drive, in Stockton, California (Figures 1 and 2). This work is being <br />completed prior to underground storage tank (UST) replacement activities at the site, which will require <br />additional soil excavation and groundwater dewatering. This work plan was prepared as requested by the <br />San Joaquin County Environmental Health Department (SJCEHD) in order to procure soil boring permits. <br />SCOPE OF WORK <br />Stantec proposes advancing two soil borings at the locations depicted on Figure 1 (B-1 and B-2) to a total <br />depth of 20 feet below ground surface (bgs) to evaluate the potential presence of petroleum hydrocarbons <br />in soil and groundwater in the area of the new UST basin. <br />Health and Safety <br />As required by the Occupational Safety and Health Administration Standard "Hazardous Waste Operations <br />and Emergency Response" guidelines (29 CFR 1910.120), Stantec will prepare a site-specific Health and <br />Safety Plan (HASP) prior to the commencement of all field work. The HASP will be reviewed by the field <br />staff and contractors before beginning field operations at the site. <br />Permitting <br />Prior to conducting the proposed work, Stantec will obtain the appropriate boring permits from the SJCEHD. <br />Utility Clearance <br />At least 48 hours prior to conducting subsurface work, Stantec will contact Underground Service Alert to <br />delineate subsurface piping near the proposed boring locations with surface markings. A private utility <br />locator service will also be contracted to clear the areas surrounding the proposed boring locations. Each <br />boring location will be cleared to five feet bgs with a hand auger prior to drilling. <br />Design with community in mind