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_ Stantec Consulting Corporation <br /> 3017 Kilgore Road Suite 100 <br /> _ Rancho Cordova CA 95670 <br /> _ Tel: (916) 861 -0400 <br /> Fax: (916) 861 -0430 <br /> Stantec �� r <br /> 00 r <br /> August 16, 2010 <br /> Mr. Michael Infurna <br /> Senior Registered Environmental Health Specialist <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> Reference: Quarterly Status Summary Report - Second Quarter 2010 <br /> ARCO Service Station No. 2130 <br /> 7906 North EI Dorado Street <br /> Stockton , California 95210 <br /> Local Oversight Program Site No. : <br /> 1094 <br /> Stantec Project No. : <br /> 211601033 .300. 522 <br /> Dear Mr. Infuma : <br /> On behalf of Atlantic Richfield Company (ARC) , a BP Affiliated Company, Stantec Consulting <br /> Corporation (Stantec) is forwarding the Quarterly Status Summary Report (QSSR) - Second <br /> Quarter 2010 (2Q10) for ARCO Service Station No. 2130 located at 7906 North EI Dorado <br /> Street in Stockton , California (site) . <br /> Site Description <br /> ARCO Service Station No. 2130 (site) is located on the northeast corner of East Hammer Lane <br /> and North EI Dorado Street in Stockton, California. Site structures include a station building , <br /> four double-walled , fiberglass, underground storage tanks; two dispenser islands; and <br /> associated piping. The site is bound to the south by East Hammer Lane; beyond which is an <br /> apartment complex, to the west by North EI Dorado Street; beyond which is an apartment <br /> complex, to the east by a shopping center, and to the north by a paved parking lot. The majority <br /> of the subject property is paved asphalt and concrete with common landscaping surrounding the <br /> property line. According to the United States Geologic Survey map dated 1976 , the elevation of <br /> the site is approximately 15 feet (ft) above mean sea level on relatively flat terrain. The nearest <br /> open bodies of water are Mosher Slough , located approximately 2,500 ft to the north and Five <br /> Mile Creek, located approximately 2,900 ft to the west of the site. No changes have been made <br /> to the site history and previous investigations since the last report submittal (Semiannual <br /> Groundwater Monitoring and Quarterly Remediation Progress Report First Quarter 2010, May <br /> 11 , 2010). <br /> Sensitive Receptors <br /> During the fourth quarter of 2004, URS Corporation of Sacramento, California (URS) performed <br /> a sensitive receptor survey at the site to identify the locations of water supply wells (municipal, <br /> 2130 QSSR 2Q10 .doc 1 <br /> i <br />