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' . Quarterly Report - Second Quarter 2003 ' Former Fisco Warehouse (Howard Lenz Property) 1648 Shaw Road, Stockton, California ' 1.0. INTRODUCTION ' At the request ofMr Peter Lenz of Innovative Beverage Brokers,Advanced GcoEnvironmental,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 in Figure 1 Structures,boring and well ' locations are illustrated on Figure 2 Site background information is provided in Appendix A I2 0. PROCEDURES Field work was performed in accordance with guidelines issued by San Joaquin County I Environmental Health Department (EHD) for the sampling of ground water morutonng wells and Central Valley Regional Water Quahty Control Board(CVRWQCB)guidelines for investigation of underground storage tank (UST) sites 2 1 WELL MONITORING AND EVACUATION �• On 19 May 2003 a Solinst water level meter was used Y � to measure the depth to ground water in monitoring wells MW4 through MW7 relative to the tops of the well casings Depth measurements were not possible in wells MWI through MW3 because these wells had no measurable water (Appendix B) Consequently, these wells could not be purged or sampled Field sheets and data are included in Appendix B After recording water level measurements, dedicated disposable plastic bailers were used to purge wells MW4 through MW7 of standing water Approximately 1 75 gallons ofwater were purged from MW5 and approximately 0 25, 1 5 and 0 5 gallons of water were removed from wells MW4, MW6 and MW7, respectively, before the wells were purged dry Ground water temperature, pH and conductivity were measured at regular intervals during purging using an Oakton water analyzer Purged water was stored on-site in labeled, 55-gallon DOT-approved drums Field sheets and data are included in Appendix B 2 2 COLLECTION OF GROUND WATER SAMPLES A water sample was collected from each purged well using the dedicated disposable bailer after allowing the wells to achieve a minimum 80%recovery of the pre-purge water volume Each water sample was transferred into three 40-m1 VOA vials containing 0 5 mi 18% hydrochloric acid as a • sample preservative and into one 1-liter amber bottle without added preservative After collection, the samples were properly labeled, placed in a chilled container and transported under chain-of- Advanced GeoEnvironmental,Inc