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' Quarterly Report - Third Quarter 2004 <br /> • NATIONAL FREIGHT <br /> 2550 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 /> Stockton,California(site) 'the scope of work included the monitoring and sampling of five ground <br /> water monitoring wells orMs eA,analysis of the ground water samples,and preparation of this report <br />' The location of the site and surrounding area are illustrated on Figure 1 On-site structures and the <br /> locations of monitoring wells are illustrated on Figure 2 <br /> This investigation was performed in accordance with guidelines issued by the Central Valley <br /> Regional Water Quality Control Board(CVRWQCB) for the investigation of underground storage <br /> tank (UST) sites and the San Joaquin County Environmental Health Department (EHD) for the <br /> sampling of ground water monitoring wells Site background Information can be found in the AGE- <br /> prepared Preliminary Investigation and Evaluation Report, dated 12 October 1999,and Additional <br /> Site Assessment Report, dated 09 April 2002 r <br /> ' 2.0. PROCEDURES <br /> Groundwater monitoring and sampling were conducted on 28 September 2004 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 Sollnst water level meter was used to measure the depth to ground water to the nearest 0 01 foot <br /> from the tops of the well casings in ground water monitoring wells MW-1 through MW-5 Depths <br /> ' to ground water and ground water elevation data is summarized 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 2 25 gallons to <br /> 4 5 gallons) of water Temperature, pH, and conductivity were measured at regular intervals using <br /> an Oakton water analyzer Purged water was stored on-site in properly labeled, Department of <br /> ^ Transportation (DOT)-approved 55-gallon drums Field data sheets are included in Appendix A Y v <br /> 1 <br /> • <br /> Advanced GeoEnvironmental,Inc <br />