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QUARTERLY REPORT <br /> Geweke Land Development & Marketing <br /> 16 South Cherokee Lane <br /> Lodi, California <br /> December 1994 <br /> 10 INTRODUCTION <br /> At the request of Geweke Land Development & Marketing (GLDM), and in accordance <br /> with Cleanup and Abatement Order No 93-701, Geological Audit Services, Inc (GeoAudit) <br /> has prepared this Quarterly Repoit of activities at 16 South Cherokee Lane in Lodi, <br /> California This report summarizes the progress of the iii-situ bioremediation and <br /> monitoring activities at the site during the fouith quarter of 1994 The location of the site <br />' is illustrated in Figure 1 A plan of the site is illustrated in Figure 2 <br />' 2 0 BACKGROUND <br /> 2.1 Hydrocarbon Impacted Soil and Groundwater Assessment <br /> MAn environmental investigation of the site has been ongoina since 1987 A total of 14 <br /> groundwater monitoring wells, one groundwater extraction well and numerous soil borings <br />' have been drilled and sampled at the site Assessment of the site was completed by <br /> GeoAudit in 1993 A Problem Assessment Repoit (PAR), Final Remedial Plan (FRP) and <br /> subsequent addendums, were prepared by GeoAudit and submitted to the Central Valley <br /> Regional Water Quality Control Board in 1993 and 1994 <br /> The PAR detailed the results of final assessment procedures and analyzed several possible <br />' methods of soil and groundwater remediation for the site Based upon site conditions, <br /> current site use and cost, the PAR recommended in-situ bioremediation The FRP, and <br /> subsequent addendums, detailed the proposed remediation method <br /> 22 In-Situ Bioremediation Pilot Study <br /> A pilot study of the in-situ soil bioiemediation was performed between February 4 and <br /> March 31, 1994 For the pilot study, five wells were inoculated with hydrocarbon-consuming <br />' bacteria The pilot study lasted for two months During the pilot study, two soil bonngs were <br /> drilled to monitor the bioremediation progress Analysis of soil samples from the soil borings <br /> indicated a significant decrease of hydrocarbon impacted soil in the immediate vicinity of <br /> one of the inoculated wells <br /> G"I'91.I Anja Serves+ Inc 1 <br /> Q...111y Rep.M2 9aR 33 GEWQM6 <br />