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1 SECOR www secorcom <br /> INTERNATIONAL 3017 Kilgore Road,Suite 100 <br /> S E C 0 R INCORPORATED Rancho Cordova,CA 95670 <br /> 916-661-0400 TEL <br /> � 916-661-0430 rAx <br /> E <br /> October 29, 2003 <br /> Harlin Knoll <br /> l ll ' 2003 <br /> San Joaquin County ,0110toil HEALTH <br /> Environmental Health Division pp rSP�afifSERV�CES <br /> 304 East Weber Avenue, Third FI <br /> b& <br /> Stockton, California 95202 <br /> RE Chevron Groundwater Monitoring Report(302003) <br /> Chevron Service Station 9-2396 <br /> 25651 Highway 99 North <br /> Acampo, California <br /> SECOR Project No 77CH 00000 09 001 0 <br /> Dear Mr Knoll <br /> SECOR International Incorporated is providing this report to summarize the recently completed <br /> groundwater monitoring event at the above referenced site The site is located at 25651 Highway 99 <br /> North, Acampo, California <br /> COMPLETED ACTIVITIES - THIRD QUARTER 2003 <br /> 4 Conducted quarterly groundwater monitoring and sampling <br /> Prepared and submitted quarterly groundwater monitoring report <br /> PROPOSED ACTIVITIES - FOURTH QUARTER 2003 <br /> ■ Conduct quarterly groundwater monitoring and sampling <br /> Prepare and submit quarterly groundwater monitoring report <br /> ■ Prepare and submit a closure request summary <br /> DISCUSSION <br /> The quarterly monitoring and sampling was performed by Gettler-Ryan, Inc (G-R) This <br /> groundwater monitoring and sampling event was performed on July 31, 2003 G-R's groundwater <br /> monitoring report is included as Attachment A Depth to groundwater across the site was <br /> approximately 75 feet below ground surface Groundwater elevation across the site decreased an <br /> average of 1 28 feet from the previous sampling event Groundwater flow was to the south at an <br /> approximate gradient of 0 003 ft/ft A summary of laboratory results are listed below <br /> r <br /> t <br /> 1 <br /> 11Chevron1923961Penodtc Monitonng120031302003 OMR 92396 Rev A doc SECOR lntemational Incorporated <br />