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05 / 11 / 98 MON 14 : 21 FAX 916 364 1889 SECOR- SACRAMENTO 001 <br /> SECOR <br /> hiternational htcnlporared <br /> May 11 , 1998 <br /> Project 7G888-010-01 <br /> Mr. Harlan Knoll MAY 11 19913 <br /> San Joaquin County Enviromnental Health Department ENVIRONMENTAL HEALTH <br /> 304 East Weber Avenue PERMIT/SERVICES <br /> Stockton, Calif3mia 95202 <br /> Re: Addendum to Work Plan dated March 23, 1998 <br /> Circle K Service Station 08671 <br /> 8606 Thornton Road <br /> Stockton, California <br /> Dear Mr. Knoll : <br /> On behalf of Tosco Marketing Company (Tosco), SECOR International Incorporated <br /> (SECOR) is performing environmental services associated with product line and <br /> dispenser upgrades at the above referenced site (Figure 1 ). The purpose of this <br /> Addendum to Work Plan is to modify the Work Plan submitted March 23, 1998 for <br /> dispenser replacement, to include sampling and over-excavation procedures associated <br /> with replacement of the product lines. <br /> SITE BACKGROUND <br /> The site is located at 8606 Thornton Road in Stockton, California. The site is an <br /> operating Circle K service station and mini-mart that retails gasoline fuel. The site <br /> currently contains three gasoline USTs and associated product lines and dispensers <br /> PROPOSEDSCOPE OF WORK <br /> Product lines and dispensers at the site are scheduled to be upgraded by a Tosco <br /> approved contractor during May 1998 . Soil compliance samples will be collected from <br /> below each dispenser per the Tri Regional Board Staff Recommendations for Preliminary <br /> Evaluation and Investigation of Underground Tank Sites_ Field and laboratory <br /> procedures are included as Attachment A. <br /> Our objectives in performing the scope of work are: <br /> 1 . To upgrade the product lines and dispensers to meet the 1998 UST <br /> standards. <br /> 9912 Husiness Pant• Driiv, Suile lOq Sacmmenro, CA 951+27 (916) i6h- 18.40 (916) 354- 1 R89 r'.y www.secor.coin <br />