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[• Quarterly Report - Third Quarter 2005 <br /> VANCO TRUCK& AUTO PLAZA <br /> 1033 West Charter Way, Stockton, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr David Atwater of Van De Pol Enterprises,Advanced GeoEnvironmental,Inc <br /> (AGE) has prepared this report for the property located at 1033 West Charter Way, Stockton, <br /> California (site) The scope of work included the installation, development, and survey of three <br /> additional on-sate ground water monitoring wells, performance of the third quarter ground water <br /> monitoring event in September 2005, submission of monitoring and analytical data to the State <br /> Water Resources Control Board's GeoTracker information management system,and preparation of <br /> this report The location of the site and surrounding area is illustrated on Figure 1, structures, soil <br /> borings, and monitoring well locations are illustrated on Figure 2 Background information, <br /> including details of previous site assessment work, is detailed in Appendix A <br /> 2.0. PROCEDURES <br /> Field work was conducted in accordance with guidelines established by the Central Valley Regional <br /> Water Quality Control Board (CVRWQCB) and the San Joaquin County Environmental Health <br /> Department(EHD)for the subsurface investigation of underground storage tank(UST)sites and the <br /> sampling of ground water monitoring wells, respectively The scope of work was outlined in the <br /> AGE-prepared Additional Monitoring Well Installation Work Plan, dated 24 January 2005 and <br /> approved by the EHD in a letter dated 08 February 2005 <br /> 2 1 MONITORING WELL INSTALLATION, DEVELOPMENT, AND SURVEY <br /> On 29 July 2005, three additional shallow ground water monitoring wells (MW-4, MW-5, and <br /> MW-6)were installed at the site The monitoring wells were developed on 02 August 2005,surveyed <br /> on 15 August 2005, and sampled on 01 September 2005 <br /> 2 1 1 Drilling and Sampling <br /> On 29 July 2005, a CME-75HT truck-mounted drill rig was utilized to advance pilot soil bonngs <br /> MW-4 through MW-6 to a total depth of 35 feet below surface grade (bsg) using 8-inch diameter <br /> hollow-stem augers The drill rig and three-man crew were supplied by Mitchell Drilling <br /> Environmental of Eureka,California Auger returns generated by the drilling were containerized in <br /> properly labeled,Department of Transportation(DOT)-approved 55-gallon drums and stored on-site <br /> pending proper disposal <br /> Advanced GeoEnvironmental,Inc <br />