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Chevron <br /> Chevron <br /> Chevron U.S.A.Products Company <br /> 2410 Camino Ramon <br /> March 15, 1994 San Ramon,CA 94583 <br /> P.O.Box 5004 <br /> San Ramon,CA 94583-0804 <br /> Marketing Department <br /> Ms. Mary Meays Phone 510 842 9500 <br /> San Joaquin County Environmental Health Department <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Former Chevron Station #9-7780, 3246 East Fremont Street, Stockton, CA 95205 <br /> Attached Groundwater Monitoring Report(GTI, 12128193) <br /> Attached Groundwater Monitoring Report(GTI, 2122194) <br /> Dear Ms. Meays: <br /> Attached are reports dated, December 28, 1993 and February 22, 1994, which were prepared by <br /> Chevron's consultant, Groundwater Technology, Inc. (GTI), to describe results of groundwater <br /> monitoring at the subject site on October 29, 1993 and January 7, 1993. <br /> During the October site visit seven of the eight monitoring wells were located and gauged. Well <br /> EA-5 was not located. Depth to groundwater was measured and samples were collected from three <br /> of the seven wells. There were no petroleum hydrocarbons detected in wells MW-4, MW-5, and <br /> EA-6. The measured direction of groundwater flow was toward the southwest. <br /> During the January site visit all eight groundwater monitoring wells were located and gauged. <br /> Depth to groundwater was measured and samples were collected from four of the eight wells. The <br /> remaining four wells were dry. There were no petroleum hydrocarbons detected in samples from <br /> wells MW-4, MW-5, EA-5, and EA-6. The measured direction of groundwater flow was toward <br /> the northeast. <br /> These latest results support the contention that there is no hydrocarbon contamination remaining in <br /> groundwater beneath the subject site. The conclusions reached from these data are that no further <br /> action be required and that case closure be considered for this site. To facilitate the evaluation for <br /> case closure, Chevron is preparing a case closure summary that will be submitted for review on or <br /> before April 29, 1994. In the meantime, all further groundwater monitoring has been suspended. <br /> If you have any questions or comments, I can be reached at(510) 842-8695. <br /> Sincerely, <br /> zW,(�? / <br /> Brett L. Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br />