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HF4Y— 1 E.—'74 WE:D 1 0 : 2.^tib-0ELT►a EhE',•' I R0 HPiEF,4 TAL�:) R _ 0 R <br /> ' n .r° <br /> t <br /> FS <br /> A#1111I <br /> EnvironmentEnvironmental Consultants, llmm— 1 <br /> MAY 10 <br /> 011 <br /> 3530 Cata Drive, SuItO 100 <br /> Rancho Cordova, CA 95670 <br /> 916,'638-2085 ENVIRONMENM HEALTH <br /> FAX: 916!638-8385 PERMIT ISERVICES <br /> May 16, 1990 <br /> s <br /> Mr. Harlin Knoll <br /> San ioaquAin County !.Deal Health District <br /> r 1601 East Hazelton Avenue <br /> Stockton, California 95201 <br /> Subject: Addendum, Sol and Ground Water Management Flan for the Underground _ <br /> Tank Replacement Project <br /> Shell Service Station <br /> 3725 Tracy Boulevard, 'Tracy, CAfifornia <br /> Shell WAC No. 244-7884-0901 <br /> Delta Project No. 40-89-012 <br /> Dear Mr. Knoll: <br /> i his letter is an addendum to our soil and ground water management plan for the underground tank <br /> replacement project at the subject site, presented in a letter to you dated February 19, 1990. The <br /> purpose of the addendum is to present a soil verificatiOA sampling plan for the ne v underground <br /> gasoline storage tank excavation. I <br /> Prior to and during work, the space .for the nt-w tanks will be enclosed by shoring to a depth of 15 <br /> feet, Therefore, verification sail samples of the exeavation will be collected inside the shoring <br /> (Figure 1). We propose to collect samples at five locations a.� illustrated in Figure 1 by excavating <br /> with a backhoe. Bch sample will be collected just above Ithe zone of saturation, at approximately <br /> 9 to 1,0 feet below the surface. The samples will be collected as close to the sharing a5 f�aSiblc, <br /> Sampling and analyses will be performed in accordance with the procedures outlined is thc; j <br /> February 19, 1990 plan, We anticipate that sampling will be performed on May 17, 1990. <br /> if you have any questions, please pall me at (91.6) 538-2055, i <br /> 4 <br /> Sincerely, <br /> e <br /> DELTA ENVIRONMENTAL CONSULTANTS, INC- <br /> / <br /> NC. <br /> carnes R. Brownell <br /> Hydrogeologist/Pro;ect Manager <br /> YRB.ecd <br /> Enclosure <br /> cclenc: Mr. stay Newsome, Shell Oil Company <br /> Ms. Diane Lundquist, Shell oil Company <br /> Mr, Tont Peltier, California Regional Wates Quality Control Board, I <br /> Central Valley Region <br /> soiutions to _rfv ranmental Concerns <br />