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1 S Ground Water Monitoring Report - Fourth Quarter 2001 <br /> Geweke Land Development & Marketing <br />' 16 South Cherokee Lane, Lodi, California <br />' 1.0. INTRODUCTION AND SCOPE OF WORK <br />' At the request of Gewekc 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 dunng the <br />' fourth quarter of 2001 The site and its surroundings are illustrated on Figure 1 Monitoring well and <br /> boring 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 a <br />' for ground water samples from previous monitoring events are included in Table 3 of this report <br />' 2.0. PROCEDURES <br /> Quarterly groundwater monitoring was performed on 10 December 2001 Fieldwork was performed <br /> lie in <br /> accordance with San Joaquin County Public Health Services - Environmental Health Division <br /> (PHS-EHD) guidelines for sampling ground water monitoring wells and Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) guidelines for investigations of underground storage <br />' tank (UST) sites <br />' 2 1 WELL MONITORING AND EVACUATION <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 fourth quarter 2001 On 10 December <br /> 2001, a Sohnst 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 I)-Wells MW-7,MW-8,MW-9,MW-12 and MW-14 <br /> were each purged using a new disposable plastic bailer Approximately 6 5 to 9 gallons of water _ <br /> (a minimum 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 1n 55-gallon <br /> Department of Transportation (DOT)-approved drums and stored on-site <br /> _ r <br /> I , <br /> • <br /> Advanced GeoEnvironmental,Inc <br /> s <br /> z <br />