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• Ground Water Monitoring Report - Third Quarter 2001 <br /> Geweke Land Development & Marketing <br /> 16 South Cherokee Lane, Ladd, California <br /> 1.0. INTRODUCTION AND SCOPE OF WORK <br /> At the request of Geweke Land Development & Marketing (GLDM), and in accordance with <br /> Cleanup and Abatement Order No 93-701,Advanced GeoEnvironmental,Inc (AGE)has prepared <br /> this report of field activities performed at 16 South Cherokee Lane,Lodi,California during the third <br /> quarter of 2001 The site and its surroundings are illustrated on Figure 1 Monitoring well and boring <br /> locations related to the site are shown on Figure 2 <br /> The scope of work covered by this report includes one quarterly ground water monitoring event <br /> Results of previous investigations are detailed in the Problem Assessment Report (PAR), the <br /> Quarterly Report-March 1996 and the Quarterly Report-March and June 1999 Analytical results <br /> for ground water samples from previous monitoring events are included in Table 3 of this report <br /> 2.0. PROCEDURES <br /> Quarterly ground water monitoring was performed on 17 4 September 2001 Field work was <br /> performed in accordance with San Joaquin County Public Health Services - Environmental Health <br /> Division(PHS-EHD) guidelines for sampling monitoring wells and Central Valley Regional Water <br /> Quality Control Board (CVRWQCB)gwdehnes for the investigation of underground storage tank <br /> (UST) sites <br /> 2 1 MONITORING WELL PURGE PROCEDURES <br /> In accordance with the Revised Monitoring and Reporting Program, dated 27 June 2001, fifteen <br /> wells were monitored and five wells were sampled during the third quarter 2001 On 17 September <br /> 2001, a Soloist water level meter was used to measure the depth to ground water in fifteen wells <br /> relative to the tops of the well casings(Table 1) Wells MW-7,MW-8,MW-9,MW-12 and MW-14 <br /> were purged using new disposable plastic bailers Approximately 6 to 9 gallons ofwater(a minimum <br /> of 3 casing-water volumes per well) were removed from each of the wells sampled <br /> Temperature, pH and conductivity of the purge water were measured at regular purge-volume <br /> intervals using an Oakton water analyzer and the readings were recorded on field logs Field data and <br /> work sheets are included in Appendix A The purged water was containerized in 55-gallon <br /> DOT-approved drums and stored on-site <br /> Advanced GeoEnvironmental,Inc. <br />