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' Quarterly Report - Second Quarter 2002 <br /> • PACIFIC MINI-MART <br />' 4511 Pacific Avenue, Stockton, California <br />' 1.0. INTRODUCTION AND SCOPE OF WORK <br /> At the request of Mr Art Wyatt, Advanced GeoEnvironmental, Inc (AGE) has prepared this <br /> quarterly report for the site located at 4511 Pacific Avenue, Stockton, California (the site) The <br /> location of the site is illustrated in Figure 1,structures,monitoring well and soil boring locations are <br />' illustrated in Figure 2 <br /> The site history and a description of previous work performed at the site were detailed in the AGE- <br /> prepared Quarterly Report-March 1996, dated 30 April 1996 Findings from the latest soil and grab <br /> ground water sampling event were detailed in the AGE-prepared Quarterly Report - June 1998, <br /> dated 22 December 1998 The field procedures for the work reported herein were performed in <br />' accordance with procedures outlined in the AGE-prepared Monitoring Well Installation and Interim <br /> Ground Water Remediation, dated 26 October 2000, and approved by the San Joaquin County <br /> Environmental Health Department (EHD) by letter dated 01 November 2000 Data from previous <br />' ground water monitoring events are included in the tables of this report <br /> The scope of work included operation and maintenance of a shallow ground water extraction system <br />' . and monitoring of the ground water monitoring well network on the site and off the site This report <br /> documents the operation of a low-flow ground water remediation system, the procedures for <br /> collection and analysis of ground water samples from the well network and the results of a ground <br />' water and treatment system monitoring events <br />' 2.0. GROUND WATER MONITORING PROCEDURES <br />' On 14 and 15 May 2002, a quarterly ground water monitoring and sampling event was conducted <br /> on the monitoring well network Field procedures were performed in accordance with procedures <br /> outlined in Monitoring Well Installation and Interim Ground Water Remediation <br />' The ground water monitoring activities at the site has been coordinated to occur concurrently with <br /> the ground water monitoring activities at the Pacific Car Wash site(4405 Pacific Avenue) A ground <br /> water elevation contour map was generated with the Pacific Car Wash ground water well elevations <br /> 2 1 WELL MONITORING AND EVACUATION <br /> On 14 May 2002, a Solinst water level meter was used to measure the depth to ground water in <br /> monitoring wells MW-1 through MW-16 and vapor well VWI <br />' Advanced CeoEnvironmental Inc <br />