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I ' Quarterly Report - First Quarter 2004 PLAZA LIQUORS II ' 2420 West Turner Road, Lodi, California ' 1.0. INTRODUCTION At the request of Mr Robert McCarty,Advanced GeoEnvironmental,Inc (AGE)has prepared this ' quarterly report for the property located at 2420 West Turner Road, Lodi, California The scope of work included performance of a quarterly ground water monitoring event and preparation of this ' report The site and the surrounding area are illustrated on Figure 1 On-site structures and monitoring well locations are illustrated on Figure 2 Site background information is summarized in Appendix A 2.0. PROCEDURES Field work was performed in accordance with guidelines established by the Central Valley Regional Water Quality Control Board(CVRWQCB)for the investigation ofunderground storage tank(UST) ' sites lie 2 1 WELL MONITORING AND PURGING On 12 January 2004,the depth to ground water in all eight monitoring wells was measured from the ' top of each well casing to the nearest 0 01-foot utilizing a Solinst water level meter Ground water elevation in each well was calculated by subtracting the measured depth to ground water from the ' surveyed casing elevation (Table 1) After recording water level measurements, dedicated disposable plastic bailers were used to purge ' the wells MW-1 through MW-6 of standing water Wells MW-7 and MW-8 were not sampled at the request of the San Joaquin County Environmental Health Department (EHD) During a telephone conversation on 08 January 2004,the EHD verbally directed that wells MW-7 and MW-8 be placed ' on an annual sampling frequency, starting with the Fourth Quarter 2003 Approximately 6 5 to 7 gallons of water(a minimum of 3 casing-water volumes per well)were removed from wells MW-1 through MW-5 Well MW-6 purged near-dry with approximately 4 gallons removed Ground water ' temperature,pH and conductivity were measured at regular intervals during purging using an Oakton water analyzer Field sheets and data are included in Appendix B Purged water was stored in properly labeled Department of Transportation (DOT)-approved model 171-1 55-gallon drums and stored on-site Advanced GeoEnviron mental,Inc