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Ltom _ <br /> Date: -4aui=y-J4T-- - SECOR <br /> i I Intern atlollcll h1coiPorated <br /> CHEVRON GROUNDWATER MONITORA; REPOR' (4 2001) <br /> Primary Agency: Rebecca Setliff <br /> San Joaquin County <br /> Environmental Health Division <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, CA 95202 <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. — WilIiam Brasher <br /> Consultant Project No.: 077.43461.002 <br /> Assembly Bill 681 Status: Property Owner: Chevron Products Company <br /> WORK PERFORMED THIS QUARTER: Fourth Quarter—2001: <br /> 1. Conducted quarterly groundwater monitoring and sampling. <br /> . 2. Prepared and submitted groundwater monitoring report. <br /> 3. Performed aquifer testing proposed in Work Plan for Feasibility Testing and CAP Preparation. <br /> 4. Prepared and submitted two addendums to Work Plan for Feasibility Testing and CAP Preparation. <br /> WORK PROPOSED FOR NEXT QUARTER: First Quarter - 2002- <br /> 1. <br /> 002:1. Conduct quarterly groundwater monitoring and sampling. <br /> 2. Prepare and submit groundwater monitoring report. <br /> 3. Install ozone sparging wells and additional groundwater monitoring well. <br /> 4. Perform DPE pilot test and commence ozone sparging pilot test. <br /> QUARTERLY RESULTS SUMMARY: <br /> Current Phase of Project: Monitoring tutu Sampling/Feusihility Testing= <br /> Frequency of Groundwater Sampling: Qutrrlerly <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 to 24.5 feet <br /> . Groundwater Gradient: Southeast(m,0.092 to 0.003, t/ft <br /> 3017 Kilgore Road, Suite 100, Rancho Cordova, CA 95670 916.861.0400 916.861.0430 Fax uwu).secor.com <br />