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' Quarterly Report - Third 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 The scope of work included monitoring and sampling of five ground <br /> ' water monitoring wells on-site,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 Preliminary <br /> Investigation and Evaluation Report,dated 12 October 1999 and Additional Site Assessment Report, <br /> ' dated 09 April 2002 <br /> ' 20 PROCEDURES <br /> Groundwater monitoring and sampling was conducted on 22 September 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 /> SS-gallon-drums - - -_�- _ - �-- - - - --- -------�---_ _ —s- - �_ __ - ----- _ -- -- <br />' 22 GROUND WATER SAMPLE COLLECTION <br /> • Advanced CeoEnvironmentai,Inc <br /> 1 <br />