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Date: September 27,2002 Q!'F—�COR <br /> International Incorporated <br /> CHEVRON GROUNDWATER MONITORING REPORT (3Q200,2) , <br /> Imo' <br /> Primary Agency: Margaret Lagorio <br /> San Joaquin County <br /> Environmental Health Division SEP { 2��� <br /> 304 East Weber Avenue,Third Floor t.,'! HEALTH <br /> Stockton,CA 95202 PERf`Y111)SERVICES <br /> Facility No.: 9-0557 Address: 139 South Center Street,Stockton,California <br /> CHEVRON Project Manager: Robert Cochran <br /> Consulting Co./Contact Person: SECOR International,Inc. — William Brasher <br /> Consultant Project No.: 77CH.00000.00.0002 <br /> Assembly Bill 681 Status: Property Owner: Chevron Products Company <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 /> . 3. Continued ozone sparging pilot test. <br /> 4. Prepared and submitted well installation and ozone sparging pilot test progress report. <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. I <br /> 3. Continue ozone sparging pilot test. <br /> QUARTERLY RESULTS SUMMARY: <br /> Current Phase of Project: Monitoring and Sampling/Feasibility Testing <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: N/A <br /> Approximate Depth to Groundwater: 23.31 to 24.51 feet <br /> Groundwater Gradient: Variable(southeast)at 0.005 to 0.01 JVft <br /> 3017 Kilgore Road, Suite 100, Rancho Cordova, CA 95670 916.861.0400 916,861,0430 Fax wuw.secor.com <br />