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NW V <br /> STATE OF CALIFORNIA GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD _ <br /> SACRAMENTO,CA 95827-3098 <br /> flu 1 ? 1?93 <br /> 14 August 1989 <br /> u @\'iiia::VlVlti V Ir1L n�H�l tl <br /> PERMIT/SERVICE° <br /> Ms. Diane Hinson, Registered Sanitarian <br /> San Joaquin County Department of Public Health <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> FORMER CHEVRON STATION, 2103 COUNTRY CLUB DRIVE, STOCKTON - DRAFT GROUND WATER <br /> INVESTIGATION WORK PLAN <br /> We have reviewed the Draft Work Plan for this site, dated 17 July 1989, <br /> prepared by Pacific Environmental Group. The work plan includes a summary of <br /> previous investigations, and a proposal for the installation and sampling of 8 <br /> additional monitoring wells and 4 additional soil borings. <br /> The proposed scope of work is generally acceptable and appears adequate to <br /> further identify the extent of soil and ground water contamination. <br /> Therefore, we recommend approval of the Draft Work Plan with the following <br /> modification: because the chlorinated hydrocarbon 1,2-dichloroethane was <br /> detected in ground water on-site, the proposed ground water sampling plan <br /> should include analysis for this chemical . <br /> If you should have any questions, please call me at (916) 361-5731 . <br /> THOMAS D. PELTIER <br /> Engineering Geologist <br /> TDP/tdp <br /> cc: Mr. John Randall , Chevron USA, Inc. , San Ramon <br /> Ms. Tina Berry, Pacific Environmental Group, Santa Clara <br />