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ON/ <br /> til ti <br /> SECOR www secorcom <br /> INTERNATIONAL <br /> S E C ® R INCORPORATED 3017 Kilgore Road Suite 100 <br /> Rancho Cordova,CA 95670 <br /> 916-861-0400 TEL <br /> r 816 861'0430 FAx <br /> April 24, 2003 m C M WE D <br /> MAY 0 1 2003 <br /> Jeffrey Wong ENVIRONMENT HEALTH <br /> San Joaquin County Environmental Health Department PERMIT <br /> /SERVICES <br /> East Weber Avenue, Third Floor /SERVICES <br /> Stockton, California 95202 <br /> RE Chevron Groundwater Monitoring Report (1Q2003) <br /> Chevron Station 9-9840 <br /> 4344 Waterloo Road <br /> Stockton, California <br /> SECOR Project No 77CH 00000 09 0022 <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 The site is located at 4344 Waterloo <br /> Road, Stockton, California <br /> COMPLETED ACTIVITIES - FIRST QUARTER 2003 <br /> • • Conducted quarterly groundwater monitoring and sampling <br /> ■ Prepared and submitted quarterly groundwater monitoring report <br /> PLANNED ACTIVITIES - SECOND QUARTER 2003 <br /> ■ Conduct quarterly groundwater monitoring and sampling <br /> ■ Prepare and submit quarterly groundwater monitoring report <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 January 10, 2003 G-R's <br /> groundwater monitoring report is included as Attachment A Depth to groundwater across the site <br /> ranged from 66 13 to 68 31 feet below ground surface Groundwater elevation across the site <br /> increased an average of 2 93 feet from the previous sampling event Groundwater flow direction <br /> was variable at an approximate gradient of 0 01 to 0 1 ft/ft A summary of laboratory results are <br /> listed below <br /> 11Chevron19984MPenodic Monitonng120031102003 doc <br />