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• <br /> = Geological Audit Services, Inc. <br /> EW <br /> Environmental Professionals <br /> vv <br /> 1803 W.March Lane,Suite • Stockton,CA 95207•(209)956-0264 • FAX(209)956-0700 <br /> February 7, 1994 <br /> (GeoAudit-1.33) <br /> Elizabeth Thayer <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD - <br /> CENTRAL VALLEY REGION m <br /> 3443 Routier Road <br /> Sacramento, CA 95827-3098 <br /> Subject: In-situ Bloremediation Pilot Test Monitoring Program i7;^ <br /> N <br /> Geweke Land Development and Marketing <br /> 16 South Cherokee Lane, Lodi, California <br /> Dear Miss Thayer: <br /> A meeting was held in the Regional Board office in Sacramento on Friday, February 4, 1994 <br /> to work out a program for monitoring the progress of the in-situ bioremediation pilot <br /> program at the referenced site. In attendance were Dr. Victor Cherven and Mr. Bob Marty <br /> of Geological Audit, representing Geweke Land Development, and Miss Elizabeth Thayer <br /> of CVRWQCB. <br /> Dr. Cherven summarized the inoculation activities of February 2. Appro)dmately 650 gallons <br /> of inoculum were injected into five wells (MW-4, VW-1, VW-4, VW-5, and VW-6). A <br /> rubber, pressurized packer was used to isolate the inoculated zone from groundwater during <br /> each inoculation. Most wells were inoculated twice, with the packer placed at 30 feet and <br /> then at 40 feet. Wells VW-6 and MW-4 were inoculated only once, with the packer at 40 <br /> feet. <br /> Miss Thayer then presented a proposed Revised Monitoring and Reporting Program for <br /> groundwater, soil gas/vapor, and soil. This document was designed for long-term monitoring <br /> of the full-scale remediation program. Discussion focused on modifying it for the limited <br /> pilot test program. The pilot test program is described below. <br /> SOIL GAS/VAPOR MONITORING <br /> Currently, there are 16 wells on the property. These were divided into four categories: <br /> 1 <br /> Full Spectrum Environmental Services• Hydrogeology <br />