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0/0 <br /> SECOR wwwsecorcom f <br /> INTERNATIONAL 3017 Kilgore Road Suite 100 <br /> S E C ® R INCORPORATED Rancho Cordova CA 95670 <br /> • 916 861.0400 TEL <br /> 916-861-MO FAx <br /> July 29, 2003 �f] <br /> Harlin Knoll AUG 0 3 2003 <br /> San Joaquin County Environmental Health Department <br /> 304 East Weber Avenue,Third Floor ENVIRONMENT HEALTH <br /> Stockton, California 95202 PERMIT/SERVICES <br /> RE Second 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 second <br /> quarter groundwater monitoring event at the above referenced site <br /> COMPLETED ACTIVITIES— SECOND QUARTER 2003 <br /> ■ Conducted quarterly groundwater monitoring and sampling <br /> ■ Prepared and submitted quarterly groundwater monitoring report <br /> PLANNED ACTIVITIES—THIRD QUARTER 2003 <br /> ■ Conduct quarterly groundwater monitoring and sampling <br /> ■ Prepare and submit quarterly groundwater monitoring report <br /> DISCUSSION <br /> On April 28, 2003, Gettler-Ryan Incorporated (G-R) performed the second 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 01 to 10 62 feet below ground <br /> surface (bgs) Groundwater across the site decreased an average of 0 20 feet from the previous <br /> sampling event The groundwater flow direction was reported at an approximate gradient of 0 002 <br /> feet per foot (ft/ft) Four wells were sampled during this event A summary of laboratory data is <br /> listed below <br /> t <br /> 1 4Chevron1982541Penodic Monrtonng12003=2003 QMR 98264 Rev A doc SECOR Intematronal Incorporated <br />