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i# ' Quarterly Report - Second Quarter 2004 Former FISCO WAREHOUSE (Howard Lenz Property) ' 1648 Shaw Road, Stockton, California ' 1.0. INTRODUCTION At the request of Mr.Peter Lenz of Innovative Beverage Brokers,Advanced GeoEnvironmental,Inc. ' (AGE) has prepared this quarterly report for the property located at 1648 Shaw Road, Stockton, California. The site and the surrounding area are illustrated on Figure 1. Structures,boring,and well locations are illustrated on Figure 2. Site background information is provided in Appendix A. ' 2.0. PROCEDURES Field work was performed in accordance with guidelines issued by San Joaquin County Environmental Health Department (EHD) for the sampling of ground water monitoring wells and Central Valley Regional Water Quality Control Board(CVRWQCB)guidelines for investigation of underground storage tank (UST) sites. 2.1. WELL MONITORING AND EVACUATION On 30 June 2004, a Solinst water level meter was used to measure the depth to ground water in p monitoring wells MW-1 through MW-8. Field sheets and data are included in Appendix B. ' After recording the water level measurement,a Waterra inertia pump with dedicated tubing was used to purge well MW-8 of standing water.Wells MW-1 through MW-3 were dry.Wells MW-4 through ' MW-7 could not be purged due to the small quantity of ground water in these wells.Approximately 6.0 gallons of water were purged from well MW-8 before it was purged dry. Ground water ' temperature, pH, and conductivity were measured at regular intervals during the purging of MW-8 using an Oakton water analyzer. Purged water was stored on-site in labeled, 55-gallon Department of Transportation (DOT)-approved drums. Field sheets and data are included in Appendix B. I 2.2. COLLECTION OF GROUND WATER SAMPLES ' Water samples were collected from wells MW-5 and MW-7 using disposable plastic bailers and from MW-8 using dedicated tubing after allowing the well to achieve a minimum 80%recovery of the pre-purge water volume. The water samples from MW-5 and MW-8 were transferred into three 40-milliliter (ml) volatile organic analysis (VOA) vials containing 0.5 ml 18% hydrochloric acid solution as a sample preservative and into one 1-liter amber bottle without added preservative. However, there was only enough water in well MW-7 to fill two VOA vials. After collection, the samples were properly ' Advanced GeoEnvironmental,Inc.