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Qor <br /> SECOR www secorcom I <br /> INTERNATIONAL 3017 Kilgore Road Suite 100 <br /> E C (1) R INCORPORATED Rancho Cordova CA 95670 <br /> 916-$61-0400 M. <br /> 976$61-0430 FAX <br /> April 30, 2004 C E�W/Ef[a <br /> APR 2 9 2004 <br /> Harlin Knoll <br /> ENVIRONMENT HEALTH San Joaquin County Environmental Health Department PERMIT/SERVICES <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> RE First Quarter 2004 Groundwater Monitoring Report <br /> Chevron Station 9-8264 <br /> 3775 Tracy Boulevard <br /> Tracy, California <br /> SECOR Project No 77CH 00000 23 0026 <br /> Dear Mr Knoll <br /> SECOR International Incorporated (SECOR) is providing this report to summarize the fourth quarter <br /> groundwater monitoring event at the above referenced site <br /> COMPLETED ACTIVITIES — FIRST QUARTER 2004 <br /> ■ Conducted quarterly groundwater monitoring and sampling <br /> ■ Prepared and submitted quarterly groundwater monitoring report <br /> PLANNED ACTIVITIES — SECOND QUARTER 2004 <br /> • Conduct quarterly groundwater monitoring and sampling <br /> • Prepare and submit quarterly groundwater monitoring report <br /> DISCUSSION <br /> On January 26, 2004, Gettler-Ryan Incorporated (G-R) performed the first quarter groundwater <br /> monitoring and sampling event for 2004 G-R's groundwater monitoring report is included as <br /> Attachment 1 Depth to groundwater across the site ranged from 9 08 to 10 69 feet below ground 1 <br /> surface (bgs) Groundwater elevation across the site increased an average of 0 37 feet from the <br /> previous sampling event The groundwater flow direction was reported to the northeast at an <br /> approximate gradient from 0 002 to 0 003 feet per foot (ft/ft) Four monitoring wells were sampled <br /> during this event A summary of laboratory data is listed below <br /> t <br /> Y <br /> kChevron1982841Penodre Mondonng12004VQ2004 QMR 98264 doc SECOR lntemationa!Incorporated f <br /> 1 <br />