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Work Plan Addendum <br /> CALIFORNIA FUELS CARDLOCK STATION <br />' 2402 Pacific Avenue, Stockton, California <br />' 1.0. INTRODUCTION <br /> Advanced GeoEnvironmental,Inc (AGE)has prepared this work plan for Installation of one ground <br />' water extraction well at 2402 Pacific Avenue, Stockton, California (the site) Following well <br /> Installation, AGE will perform a feasibility study for ground water corrective action inOuding <br />' performance of a 24-hour ground water aquifer pumping test The location of the site is Illustrated <br /> in Figure 1 A plan of the site is illustrated on Figure 2 <br />' The proposed scope of work is in accordance with a verbal directive from the San Joaquin County <br /> Environmental Health Department(SJCEHD) during a telephone conversation with Mr Jeff Wong <br /> on 07 January 2002 As part of a Corrective Action Plan(CAP) for the site,performance of a ground <br />' water aquifer pumping test will be performed to evaluate potential remediation options for ground <br /> water at the site Upon completion of the feasibility study, a revised Remedial Action Plan (RAP) <br /> can be prepared <br /> This work plan is prepared in accordance with California Regional Water Quality Control Board - <br /> Central Valley Region (RWQCB) guidelines for the investigation of underground storage tanks <br /> (UST) sites <br /> A summary of background information for the site was included in the Monitoring Well Installation <br />' Work Plan - September 1999, dated 01 September 1999, prepared by AGE <br />' 2.0. SCOPE OF WORK <br />' AGE proposes to drill and install one 6-inch diameter ground water extraction well(EW-1) screened <br /> through Hydrologic Units I and 2 (screened between 30 and 60 feet bsg) <br />' Following installation of ground water extraction well EW-1, a 24-hour aquifer pumping test will <br /> be performed at the site to predict a general ground water radius of influence and capture zone during <br /> ground water extraction <br /> The scope of work will consist of the following tasks <br />' 0 Permitting, planning and pre-field work activities, <br /> • Drilling and well installation, <br /> • Performance of a 24-hour ground water aquifer pumping test, <br /> • Preparation of a revised Remedial Action Plan <br /> tAdvanced Geo Environmental,Inc <br /> 1 <br />