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r <br /> Date October 34,2002 <br /> SECOR <br /> International Incorporated <br /> CHEVRON GROUNDWATER MONITORING REPORT (3Q2002) <br /> Primary Agency Mike Infurna RDECOVED <br /> San Joaquin County <br /> Environmental Health Division NOV 01 2002 <br /> 304 East Weber Avenue,Third Floor <br /> Stockton,CA 95202 ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Facility No 9-1848 Address 1257 Yosemite Avenue,Manteca,California <br /> CHEVRON Project Manager Robert Cochran <br /> Consulting Co/Contact Person SECOR International,Inc — Roger Hoffmore <br /> Consultant Project No 77CH 00000 00 0006 <br /> Assembly BiII 681 Status Property Owner Chase/Parker Corp,Rodney A Chase <br /> WORK PERFORMED THIS QUARTER: Third Quarter—2002: <br /> 1 Conducted quarterly groundwater monitoring and sampling <br /> • 2 Prepared and submitted groundwater monitoring report <br /> I � <br /> i <br /> WORK PROPOSED FOR NEXT QUARTER- Fourth Quarter-2002: <br /> 1 Conduct quarterly groundwater monitoring and sampling <br /> 2 Prepare and submit groundwater monitoring report <br /> QUARTERLY RESULTS SUMMARY: <br /> Current Phase of Project Monitoring and Sampling <br /> Frequency of Groundwater Sampling Quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Is Free Product(FP)Present On-Site No <br /> Current Remediation Techniques Monitored Natural Attenuation <br /> Approximate Depth to Groundwater 16.67 to 1711 feet <br /> Groundwater Gradient Northeast @ 0 01 ft/ft <br /> 3017 Kilgore Road, Suite 100, Rancho Cordova, CA 95670 916 861 0400 916 861 0430 rax www secor com <br />