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F <br />' Quarterly Report - Third Quarter 2005 <br /> • LODI AIRPORT <br />' 23987 North Highway 99, Acampo, California 95220 <br /> t1.0. INTRODUCTION <br /> At the request of Mr Robert Kupka of Lodi Airport,Advanced GeoEnvironmental, Inc (AGE)has <br />' prepared this quarterly report for the property located at 23987 North Highway 99, Acampo, <br /> California(site) The scope of work Included quarterly ground water monitoring and preparation of <br /> this report The location of the site and the immediately surrounding area are illustrated on figure <br />' 1, structures, former UST locations, monitoring well and soil boring locations are illustrated on <br /> Figure 2 Background information is included as Appendix A <br /> 2.0. D <br /> PROCE URES <br />' Field work was performed in accordance with guidelines established by the California Regional <br /> Water Quality Control Board-Central Valley Region for investigation of underground storage tank <br /> (UST) sites <br /> 10 2 1 QUARTERLY WELL MONITORING PROCEDURES <br /> The third quarterly ground water monitoring event was performed on 06 September 2005, ground <br />' water monitoring was performed on monitoring wells MW-1 through MW-3 Additionally, the on- <br /> site domestic well was sampled <br />' 2 1 1 Well Monitoring and Evacuation <br />' On 06 September 2005, a Sollnst water level meter was used to measure the depth to ground water <br /> in all three monitoring wells relative to the tops of the well casings After the depth-to-ground water <br /> measurements were collected, casing water in the monitoring wells was evacuated using polyvinyl <br />' chloride(PVC)disposable bailers Approximately 1 to 2 gallons of water were evacuated from each <br /> of the monitoring wells, equivalent to three casing-water volumes per well <br /> ITemperature, pH and conductivity were measured at 1-gallon intervals, using an Oakton water <br /> analyzer to monitor pH, temperature and conductivity of the purged water, the field data logs are <br />' provided in Appendix B Purged water was temporarily stored on-site in 55-gallon drums <br /> 2 1 2 Collection and Analysis of Ground Water Samples <br /> • Water samples were collected from each monitoring well using new disposable bailers after allowing <br /> IAdvanced GeoEnvironmental,Inc <br />