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L <br /> STATE OF CALIFORNIA - Environmental Protec_. . Agency PETE WILSON, Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> 3443 Routier Road, Suite A -.;'t IJ <br /> Sacramento, CA 95827-3098 'GE <br /> PHONE: (916) 255-3000 <br /> FAX: (916) 255-3015 Jr; NOV Q I: 22 <br /> 2 November 1994 <br /> Mr. Larry Silva <br /> Tosco Northwest Company <br /> 601 Union Street <br /> Seattle, WA 98101 <br /> SITE CHARACTERIZATION WORK PLAN, BRITISH PETROLEUM PRODUCTS, <br /> STOCKTON TERMINAL, SAN JOAQUIN COUNTY <br /> On your behalf, EMCON Associates submitted a 20 October 1994 work plan to assess <br /> British Petroleum Products'(BP) Stockton Terminal as part of transfer of the terminal to <br /> Tosco. My sole comment on the work plan pertains to the proposed cone penetrometer test <br /> (CPT) work and is described below. <br /> The work plan proposes to characterize the site's stratigraphy by using CPT at four <br /> locations. The depth of the CPT was not specified. Also, due to the predominantly westerly <br /> ground water flow direction, I recommend that a CPT location be added in the vicinity of <br /> monitoring wells (MWs) 1 and 2 if the CPT will go deeper than MWs 1 and 2. <br /> I hereby approve the work plan conditioned upon my receipt of an adequate response to my <br /> comment by 23 November 1994. Please inform me at least 48 hours prior to initiation of <br /> field work so that I may be present to observe and/or split samples. <br /> If you have any Questions, you may call me at (916) 255-3049. <br /> PHILIP S. IS ORENA <br /> Associate Engineer <br /> PSI:psi/lsb <br /> cc: -`Ms. Diane Hinson, San Joaquin Local Health District, Stockton <br /> Mr. Richard Laubacher, BP Petroleum Products, Cleveland, Ohio <br /> Mr. Robert Husk, EMCON Associates, Sacramento <br />