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Quarterly r <br /> Q e ly Report - Fourth Quarter 2002 <br />' NATIONAL FREIGHT <br /> 2850 Loomis Road, Stockton, California <br /> t1.0 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(the <br /> sate), Stockton, California The scope of work included monitoring and sampling five ground water <br /> t monitoring wells on the site and preparation of this report The location of the site and Its <br /> surroundings are illustrated on Figure 1, major features and monitoring wells on the site are <br /> 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 Preliminary <br /> Investigation and Evaluation Report,dated 12 October 1999 andAdditional Site Assessment Report, <br />' dated 09 Apn12002 <br />, . 2.0 PROCEDURES <br />' Ground water monitoring and sampling was conducted on 27 December 2002,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 EVACUATION <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 of a minimum of three casing-water volumes(approximately 6 to 6 5 gallons) <br /> of water Temperature, pH, and conductivity were measured at regular intervals using an Oakton <br /> water analyzer The field data sheets are included in Appendix A Purged water was stored on site <br /> in 55-gallon drums <br /> I <br /> I <br /> Advanced GeoEnvironmental,Inc <br />