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it <br /> SECOR vvww secor com <br /> S C C O NTERNATIONAL 3017 Kilgore Road,Suite 100 <br /> INCORPORATED Rancho Cordova,CA 95670 <br /> 1 916 661-0400 TEL <br /> 916 861-0430 FAX <br /> January 23, 2004 <br /> C E <br /> Jeffrey Wong FEB 2 2004 <br /> San Joaquin County Public Health Services <br /> Environmental Health Division ENVIRONMENT HEALTH <br /> 304 East Weber Avenue, Third Floor PERMIT/SERVICES <br /> Stockton, California 95202 <br /> RE Chevron Groundwater Monitoring Report (402003) <br /> Chevron Station 9-6258 <br /> 2409 East Main Street <br /> Stockton, California <br /> SECOR Project No 77CH 00000 09 0018 <br /> Dear Mr Wong <br /> SECOR International Incorporated is providing this report to summarize the recently completed <br /> groundwater-monitoring event at the above referenced site <br /> COMPLETED ACTIVITIES - FOURTH QUARTER 2003 <br /> i� Conducteduarterl <br /> q y groundwater monitoring and sampling <br /> ■ Prepared and submitted quarterly groundwater monitoring report <br /> PLANNED ACTIVITIES — FIRST QUARTER 2004 <br /> ■ Conduct quarterly groundwater monitoring and sampling <br /> • Prepare and submit quarterly groundwater monitoring report <br /> DISCUSSION <br /> On October 24, 2003 Gettler-Ryan, Inc (G-R) performed the fourth quarter groundwater monitoring <br /> and sampling event for 2003 G-R's groundwater monitoring report is included as Attachment A <br /> Depth to groundwater across the site was approximately 54 feet below ground surface <br /> Groundwater elevation across the site decreased an average of 2 34 feet from the previous sampling <br /> event Groundwater flow was to the southeast at an approximate gradient of 0 002 ftfft A summary <br /> of laboratory results are listed below <br /> 1 1Chevron1962581Ped6dre Monrtoringt20031402003 QMR 96258 doc SECOR International Incorporated <br />