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Quarterly Report - First Quarter 2002 <br /> K& S GAS & GROCERY <br />' 701 East Charter Way, Stockton, California <br />' 1.0. INTRODUCTION <br /> At the request of Mr Khaldoon Othman of K & S Grocery, Advanced GeoEnvironinental, Inc <br /> (AGE)has prepared this quarterly report for the property located at 701 East Charter Way,Stockton, <br /> California The scope of work included quarterly ground water monitoring and preparation of this <br /> report The site setting is illustrated in Figure 1 Structures and monitoring well locations are <br />' illustrated in Figure 2 <br />' Site background information was summarized in the AGE-prepared Monitoring Well Installation <br /> Report, dated 02 June 1999 Data from previous ground water monitoring events is summarized in <br /> the tables of this report <br /> At the request of the Central Valley Regional Water Quality Control Board (RWQCB), K & S <br /> quarterly ground water monitoring events are coordinated to occur concurrently with ground water <br />' monitoring activities at the Darpetro USA service station at 749 East Charter Way <br />' 2.0. PROCEDURES <br /> Ground water monitoring wells MW 1 through MW3 were monitored and sampled on 08 January <br />' 2002 Field work was performed in accordance with guidelines established by the RWQCB for <br /> investigation of underground storage tank (UST) sites <br />' <br /> 2 1 WELL MONITORING T RING AND EVACUATION <br />' A Solinst water level meter was used to measure the depth to ground water in the monitoring wells <br /> relative to the tops of the well casings (well heads) The ground water elevations and gradient were <br />' determined from these data (Table 1) <br /> After recording water level measurements,disposable polyethylene bailers were used to purge each <br />' well of standing water Approximately 3 casing-water volumes were removed from each well - <br /> 10 gallons from MW and 6 5 gallons each from MW2 and MW3 Ground water temperature, pH <br /> and conductivity were measured at regular purge-volume intervals during evacuation using an <br />' Oakton water analyzer Field sheets and data are included in Appendix A Evacuated water was <br /> stored on-site in labeled, 55-gallon DOT-approved drums <br />' Advanced GeoEnvironmental,Inc <br /> 1 <br />