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4 <br /> AUG 0 5 2004 <br /> C A M B R I A ENV1ho*ML,,a I HEALTH <br /> a <br /> PERMIT/SERVICES <br /> August 3, 2004 <br /> Mr Harlin Knoll <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re Product Dispenser and Piping Replacement Report <br /> Shell-branded Service Station <br /> 3725 Tracy Boulevard <br /> Tracy, California <br /> SAP Code 136186 <br /> Incident No 98996222 <br /> Dear Mr Knoll <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equilon <br /> Enterprises LLC dba Shell Oil Products US (Shell) to document the product dispenser <br /> replacement activities at the referenced site Cambria performed inspections and sampling <br /> during the upgrades of six fuel dispenser islands and removal/replacement of associated product <br /> piping The work was performed to comply with San Joaquin County Environmental Health <br /> Department(SJCEHD)and Central Valley Regional Water Quality Control Board guidelines <br /> SITE DESCRIPTION <br /> The subject site is located at 3725 Tracy Boulevard near Highway 205 in a mixed commercial <br /> and residential area of Tracy, California (Figure 1) The subject site is an operating Shell- <br /> branded service station with a station layout that includes four underground gasoline storage <br /> tanks (USTs) six dispenser islands, a car wash, and a station building(Figure 2) <br /> SAMPLING ACTIVITIES AND SAMPLE ANALYSES <br /> Product Dispenser Sampling In March 2004, Shell performed upgrade activities of their under <br /> dispenser containment equipment On March 12, 2004, Cambria performed inspections and <br /> sampling activities at each of the six dispensers (Figure 2) <br /> Cambria collected eight soil samples (D-1 through D-8) from beneath the product dispensers at <br /> Cambria depths ranging from 3 to 4 feet below grade (fbg) Soil samples were collected using a shovel to <br /> Environmental expose native soil The soil was packed into clean brass sample tubes, and tube ends were <br /> Technology,Inc covered with Teflon tape and plastic end caps Soil samples were labeled, placed into a cooler <br /> with ice,entered onto a chain of custody record <br /> Perkins Street <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />