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STATE OF CALIFORNIA GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD-- '.a <br /> CENTRAL VALLEY REGION ..� <br /> 3443 ROUTIER ROAD <br /> SACRAMENTO,CA 95827-3098ZZ <br /> Oy(\�j <br /> 11 r <br /> �t 4� <br /> 22 September 1989 sv 4�t it" <br /> MIs. Diane Hinson <br /> Registered Environmental Health Specialist <br /> Environmental Health Division <br /> San Joaquin County Department of Public Health Services <br /> Q.Q. Box 2009 <br /> Stockton CA 95201 <br /> FORMER ISC WINES SITE, 1 WEST TURNER ROAD, LODI, REVIEW OF CASE FILE <br /> On 13 September 1989 we obtained copies of all available information for this <br /> site. This information includes the analytical results for soil and ground <br /> water samples taken at this site. Approximately 10,000 cubic yards of soil <br /> were removed form the tank excavation. Hydrocarbons have not been detected in <br /> soil samples from the bottom of the excavation or in ground water samples <br /> obtained from the excavation and the on-site monitoring wells. <br /> Because much of the on-site work has been conducted by the site owner, some of <br /> this work has not been performed with the degree of supervision and <br /> documentation that is generally desired for this type of remedial action. <br /> However, we believe that the work performed has been conducted in good faith <br /> and to the best of the owner's ability. Based on the volume of soil removed <br /> and the analytical results from the recent soil and ground water samples, we <br /> believe that the extent of contaminated soil has been removed from the former <br /> tank cavity. However, the contaminated soil currently stockpiled on-site is <br /> an issue that must be dealt with separately. <br /> To verify that ground water has not been impacted, we recommend that an <br /> additional round of samples be obtained from the monitoring wells. Provided <br /> that the analytical results from these samples confirm that ground water has- <br /> not been impacted, we recommend that the excavation be backfilled with <br /> uncontaminated soil . <br /> If you have any questions, please call me at (916) 361-5731. <br /> THOMAS D. PEETIER <br /> Engineering Geologist <br /> TDP/tdp <br />