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S, 3 <br /> S t5 <br /> Chevron <br /> TIS Chevron <br /> Chevron U S A Products Company <br /> 6001 Bollinger Canyon Road <br /> September 3, 1994 Building L <br /> San Ramon CA 94583 <br /> PO Box 5004 <br /> San Ramon CA 94583-0804 <br /> Mr Harlin Knoll Marketing—Northwest Region <br /> San Joaquin County Environmental Health Phone 510 842 9500 <br /> P O Box 2009 <br /> Stockton, CA 95201 <br /> Re Former Chevron Station#9-0342 1347 S El Dorado Street Stockton CA <br /> Attached groundwater monitoring report(GTI, 6117194) <br /> Dear Mr Knoll <br /> Attached is a report dated June 17, 1994, which was prepared by Chevron's consultant, <br /> Groundwater Technology Inc (GTI), to describe groundwater monitoring performed at the subject <br /> site on May 25, 1994 <br /> During their May site visit GTI was able to access two of the four site-related groundwater <br /> monitoring wells Monitoring well MW-1 has been covered by a cement building foundation <br /> Monitoring well MW-3 could not be located Depth to water was measured at wells MW-2 and <br /> MW-4 A groundwater sample was collected at well MW-4 There were no dissolved hydrocarbons <br /> detected at this location <br /> Well MW 1 has not been accessible since site construction activities began in October, 1992 After <br /> several failed attempts to locate MW-1 it was confirmed by direct measurement that it was buried <br /> beneath the cement foundation of the newly constructed restaurant During our telephone <br /> conversation on September 20, 1993, it was agreed that if well MW-1 was beneath the building <br /> foundation then, no formal well abandonment would be required As a result, well MW-I will no <br /> longer be sampled and will be considered permanently inaccessible <br /> If you have any questions or comments, I can be reached at(510) 842-8695 <br /> Sincerely, <br /> to <br /> Brett L Hunter <br /> • Environmental Engineer <br /> Site Assessment and Remediation <br />