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1 <br /> Ground Water Monitoring and Remediation Report <br />' First and Second Quarter 2001 r <br /> LODI THEATER i ,�J <br /> 107 North School Street, Lodi, California <br /> 1.0. INTRODUCTION <br /> At the request of Mr Edward Barkett of the Lodi City Center 12, LLC Advanced GeoEnvironmental, <br /> Inc (AGE)has prepared this ground water monitoring and remediation update report for the property <br />' located at 107 North School Street, Lodi, California <br /> Background information and previous site investigation activities were described in Corrective <br />' Action Plan, dated 10 June 1999, prepared by AGE The site and the surrounding area are illustrated <br /> in Figure 1 Structures, well and boring locations are illustrated on Figure 2 <br />' The following is a chronology of the site remediation and field activities covered by this report <br />' 0 23 February 2001 - Sampling of the seven ground water monitoring wells <br /> • 27 February 2001 - Demobilization of the thermal oxidation system from the site <br /> 01 March 2001 - Installation and start-up of carbon-based vapor extraction <br /> • 19 March 2001 - Installation of oxygen release compound treatment within wells <br />' a 16 April 2001 - Discontinued operation of carbon-based vapor extraction <br /> • 23 April 2001 - Sampling and destruction of monitoring well MW-I <br /> 2.0. PROCEDURES <br />' All field work was performed in accordance with Central Valley Regional Water Quality Control <br /> Board(CVRWQCB) guidelines for investigation of underground storage tank (UST) sites Ground <br /> water sampling was conducted in accordance with guideline for monitoring well sampling issued by <br /> the San Joaquin County Public Health Services - Environmental Health Division (PHS-EHD) <br /> Field procedures for ground water monitoring and sampling are described below <br /> 2 1 WELL MONITORING AND EVACUATION <br /> Ground water sampling of monitoring wells MW-2 through MW-8 was conducted on <br /> 23 February 2001 A Solinst water level meter was used to measure the depth to ground water in the <br /> seven wells relative to the tops of the well casings The ground water elevations and gradient were <br /> Idetermined from these data (Table 1) <br /> Advanced GeoEnvironmental,Inc <br />