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11 , <br />' Quarterly Report - First Quarter 2002 <br /> • Former Fisco Warehouse (Howard Lenz Property) <br />' 1648 Shaw Road, Stockton, California <br />' 1.0. INTRODUCTION <br /> At the request of Mr.Peter Lenz of Innovative Beverage Brokers,Advanced GeoEnvironmental,Inc. <br />' (AGE) has prepared this quarterly report for the property Iocated at 1648 Shaw Road, Stockton, <br /> California. The site and the surrounding area are illustrated in Figure 1. Structures,boring and well <br />' locations are illustrated on Figure 2. Background information is summarized in the AGE-prepared <br /> Preliminary Site Investigation Report, dated 30 December 1997. <br />' 2.0. PROCEDURES <br /> Field work was performed in accordance with guidelines issued by San Joaquin County <br /> Environmental Health Department (EHD) for the sampling of ground water monitoring wells and <br /> Central Valley Regional Water Quality Control Board(CVRWQCB)guidelines for investigation of <br /> underground storage tank (UST) sites. <br /> lie2.1. WELL MONITORING AND EVACUATION <br /> Ground water sampling of monitoring wells MW1 through MW7 was conducted on 12 February <br /> 2002. A Solinst water Ievel meter was used to measure the depth to ground water in the seven wells <br /> relative to the tops of the well casings. The ground water elevations and gradient were determined <br /> from these data(Table 1). <br /> After recording water level measurements,disposable plastic bailers were used to purge wells MW 1 <br /> through MW7 of standing water. Approximately 0.75 to 4 gallons of water(a minimum of 3 casing- <br /> water volumes)were removed from wells MW 1 through MW7. Ground water temperature,pH and <br /> conductivity were measured at regular intervals during purging using an Oakton water analyzer. <br /> Field sheets and data are included in Appendix A. Purged water was stored on-site in labeled, <br /> I 55-gallon DOT-approved drums. <br /> 2.2. COLLECTION OF GROUND WATER SAMPLES <br /> Water samples were collected from each purged well using new disposable plastic bailers. Each <br /> water sample was transferred into three 40-m1 VOA vials containing 0.5 ml 18%hydrochloric acid <br /> as a sample preservative and into one 1-liter amber bottle without added preservative. After <br /> Icollection, the samples were properly labeled, placed in a chilled container and transported under <br /> Advanced GeaEnvironmental,Inc. <br /> I <br />