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Quarterly Report - Fourth Quarter 2003 <br /> �- NATIONAL FREIGHT <br /> 2850 Loomis Road, Stockton, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr. Daniel Folcher of Vineland Construction Co.,Advanced GeoEnvironmental, <br /> Inc. (AGE) has prepared this report of environmental activities conducted at 2850 Loomis Road <br /> (site), Stockton, California.fe scope of work included monitoring and sampling of five ground <br /> water monitoring wells ortr�ile, analysis of the ground water samples and preparation of this report. <br /> The location of the site and its surroundings are illustrated on Figure 1. On site features, including <br /> the locations of the monitoring wells, are illustrated on Figure 2. <br /> This investigation was performed in accordance with the guidelines of the Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) and the San Joaquin County Environmental Health <br /> Department(EHD)for investigations of underground storage tank(UST)sites and sampling ground <br /> water monitoring wells.Site background information can be found in the AGE-prepared Preliln ilia ri. <br /> Investigation and Evaluation Report,dated 12 October 1999 and Additional Site AssessnrentReport, <br /> dated 09 April 2002. <br /> 2.0. PROCEDURES <br /> Ground water monitoring and sampling was conducted on 17 December 2003. The procedures were <br /> performed in accordance with the AGE-prepared and EHD-approved Monitoring Well Installation <br /> Work Plan, dated 09 June 2000. <br /> 2.1. WELL MONITORING AND PURGING <br /> A Solinst water level meter was used to measure the depth to ground water from the well casing tops <br /> in wells MW-1 through MW-5 to the nearest 0.01 foot. The depths to ground water are summarized <br /> in Table 1. <br /> After water levels were gauged, a dedicated, disposable plastic bailer was used to evacuate (purge) <br /> each monitoring well a minimum of three casing-water volumes (approximately 5.5 gallons) of <br /> water. Temperature,pH,and conductivity were measured at regular intervals using an Oakton water <br /> analyzer. The field data sheets are included in Appendix A. Purged water was stored on site in <br /> 55-gallon drums. <br /> Advanced GeoEnvironmental,Inc. <br />