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s <br /> ►' <br /> J I r � <br /> SECOR www secor cora <br /> E P INTERNATIONAL <br /> l301 97 Kil ore Road Suite 100 <br /> ® INCORPORATED <br /> Rancho Cordova CA 95670 <br /> 11 11 r il a i 916-861-0400 rL <br /> 916 661-0430 FAX <br /> 03 QCT 3 0 PM 1: 32 <br /> October 28, 2003 <br /> Harlin Knoll <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> RE Third Quarter 2003 Groundwater Monitoring Report <br /> Chevron Station 9-8264 <br /> 3775 Tracy Boulevard <br /> Tracy, California <br /> SECOR Project No 77CH 00000 09 0020 <br /> Dear Mr Knoll <br /> SECOR International Incorporated (SECOR) is providing this report to summarize the third quarter <br /> groundwater monitoring event at the above referenced site <br /> COMPLETED ACTIVITIES—THIRD QUARTER 2003 <br /> ■ Conducted quarterly groundwater monitoring and sampling <br /> Prepared and submitted quarterly groundwater monitoring report <br /> PLANNED ACTIVITIES — FOURTH QUARTER 2003 <br /> Conduct quarterly groundwater monitoring and sampling <br /> ■ Prepare and submit quarterly groundwater monitoring report <br /> DISCUSSION <br /> On July 28, 2003, Gettler-Ryan Incorporated (G-R) performed the third quarter groundwater <br /> monitoring and sampling event for 2003 G-R's Groundwater monitoring report is Included as <br /> Attachment 1 Depth to groundwater across the site ranged from 9 96 to 11 03 feet below ground <br /> surface (bgs) Groundwater across the site decreased an average of 0 71 feet from the previous <br /> sampling event The groundwater flow direction was reported to the southeast at an approximate <br /> gradient of 0 005 feet per foot (ft/ft) Four wells were sampled during this event A summary of <br /> laboratory data Is listed below <br /> 5 <br /> r� <br /> T <br /> 11Chevron1962641penodre Monrtonng12003002003 QMR 99264 Rev A doc SECOR Intemationa!Incorporated <br />