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' PACIFIC <br /> ENVIRONMENTAL <br /> GROUP, INC <br /> AN COMPAW <br /> May I 1998 <br />' Project 31I-174 1A <br /> Mr David Camille <br />' Tosco Marketing Company <br /> 2000 Crow Canyon Place, Suite 400 <br /> San Ramon, California 94583 <br />' Re Soil in Sam l <br /> Sampling Results for Station Upgrade <br />' Tosco Service Station 05447 <br /> 1469 East Hammer Lane at West Lane <br /> Stockton, California <br /> Dear Mr Camille <br /> On behalf of Tosco Marketing Company (Tosco), Pacific Environmental Group, Inc <br /> (PEG) has prepared this letter to document the results of a soil investigation following <br /> the underground storage tank (UST), and product dispenser and piping upgrades at the <br /> site referenced above This investigation was performed by PEG at Tosco's request <br /> SITE DESCRIPTION <br /> The site is located at 1469 East Hammer Lane in Stockton, California (Figure I) The <br /> site is an operating service station and mini-mart that retails gasoline and diesel fuels <br />' The site currently contains two gasoline USTs of 10,000-gallon capacity, one gasoline <br /> UST of 12,000-gallon capacity, one diesel UST of I0,000-gallon capacity, and associ-,/ _ , <br /> ated product lines and dispensers (Figure 2) 1T� <br /> SUMMARY OF WORK PERFORMED <br />' Station upgrades were performed by Balch Construction of Milpitas, California <br /> Upgrades included replacing USTs, product dispensers, and associated piping PEG <br /> collected soil confirmation samples from each area Samples were also collected from <br /> soil stockpiles for disposal profiling and/or potential reuse <br /> All samples were retained m brass Imers, labeled, and capped with Teflon® sheets and <br /> plastic endcaps The samples were then sealed in zip-lock bags and placed on ice The <br /> r <br /> 2025 Gateway Place, Suite 440 • San Jose, California 95110-1014 (408) 441-7500 FAX (408) 441-7539 <br /> , <br />