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Stantec Consulting Corporation <br /> 3017 Kilgore Road Suite 100 <br /> Rancho Cordova CA 95670 <br /> Tel: (916)861-0400 <br /> StanFax:(916)861-0430 <br /> MAY 0 8 2009 <br /> May 6, 2009 ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Mr. Michaellnfurna <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> RE: Soil and Groundwater Assessment Results <br /> 7-Eleven Store #14113 <br /> 3040 West Benjamin Holt Drive, <br /> Stockton, California <br /> Stantec Project No.: 211501105.200.1121 <br /> Dear Mr. Infurna: <br /> On behalf of 7-Eleven Inc. (7-Eleven), Stantec Consulting Corporation (Stantec) has prepared <br /> conducted at 7-Eleven Store #14113, located at 3040 West Benjamin Holt <br /> the following report describing the results of soil and groundwater assessment activities <br /> Drive, Stockton, <br /> California (Figures 1 and 2). <br /> INTRODUCTION <br /> The purpose of the soil and groundwater assessment activities was to evaluate potential fuel <br /> hydrocarbon impact(s) to soil and groundwater from the operation of a former gasoline station at <br /> the site (operated by Exxon). Stantec's scope of work consisted of the following tasks: <br /> • Obtain soil boring permits from the San Joaquin County Environmental Health <br /> Department (SJCEHD); <br /> • Prepare a site-specific health and safety plan for soil sampling; <br /> • Clearing four vertical boring locations using Underground Service Alert (USA) and a <br /> private utility locator; <br /> • Supervising the advancement of four vertical soil borings; <br /> • Collect soil and groundwater samples from four vertical borings; <br /> • Submit soil and groundwater samples for laboratory analysis; <br /> • Prepare a summary report documenting the soil and groundwater sampling activities <br /> and soil and groundwater sample analytical results. <br /> SITE BACKGROUND AND PREVIOUS INVESTIGATIONS <br /> The site is located in a mixed residential and commercial zoned area immediately to the west of <br /> Interstate 5. The site is currently occupied by a 7-Eleven convenience store and associated <br /> parking and a municipal water tower at the southwest side in the asphalt paved parking lot. A <br /> former Exxon gas station was located on the western portion of the site. 7-Eleven has never <br />