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• <br />Date April 12 2001 <br />Quarter 1 Q0I <br />CHEVRON QUARTERLY GROUNDWATER MONITORING REPORT <br />Facility No 9-5775 Address 301 West Kettleman Lane, Lodi, California <br />CHEVRON Project Manager Robert (Bob) Cochran <br />Consulting Co /Contact Person SECOR International Incorporated/ Roger Hoffimore, David Evans <br />Consultant Project No 077 43449 670 <br />Primary Agency/Regulatory ID No Regional Water Quality Control Board -- Central Valley Region <br />Property Owner Ivern and Roger Baffont <br />WORK PERFORMED THIS QUARTER (First Quarter — 2001): <br />1 Conducted quarterly groundwater monitoring and sampling <br />2 Conducted weekly operation andmamtenanceof groundwater extraction (GWE) and soil vapor extraction <br />(SVE) systems Operations includes collecting physical measurements and air and water samples <br />Maintenance includes housekeeping, repairing/replacing broken or malfunctioning equipment, and <br />preventative/prescriptive maintenance <br />3 Prepared and submitted First Quarter 2001 Groundwater Monrtormg Report <br />4 Prepared and submitted Fust Quarter 2001 Remedial System Evaluation Report <br />5 Prepared and submitted January, February, and March 2001 Discharge Reports <br />6 Conducted assessment work for completion of Problem Assessment Report/ Final Remediation Plan <br />(PAR/FRP) Addendum <br />WORK PROPOSED FOR NEXT QUARTER (Second Quarter — 2001): <br />1 Conduct quarterly groundwater monitoring and sampling <br />2 Continue weekly operation and maintenance tasks for of groundwater extraction (GWE) and soil vapor <br />extraction (SVE) systems <br />3 Prepare and submit Second Quarter 2001 Groundwater Monitoring Report <br />4 Prepare and submit Second Quarter 2001 Remedial System Evaluation Report <br />5 Prepare and submit April, May, and June 2001 Discharge Reports <br />6 Prepare and submit PAR/FRP Addendum <br />QUARTERLY RESULTS SUMMARY <br />Current Phase of Project <br />Remediation <br />Frequency of Groundwater Sampling <br />Quarterly <br />Frequency of Groundwater Monitoring <br />Frequency <br />Quarterly <br />Is Free Product (FP) Present Onsite <br />No free product is present on-site <br />• Current Remediation Techniques <br />GWE and SVE <br />