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1 Quarterly Report - Third Quarter 2004 <br /> FLAME MINI-MART <br /> 1301 West Kettleman Lane, Lodi, California <br /> r <br />' 1.0. INTRODUCTION <br /> At the request of Mr Pete Graffigna,Advanced GeoEnvironrnental, Inc (AGE) has prepared this <br />' quarterly report for 1301 West Kettleman Lane (the site), Lodi, California The scope of work <br /> included conducting a quarterly ground water monitoring event and preparation of this report, the <br />' objective of the work was to assess, characterize and monitor dissolved petroleum hydrocarbon <br /> concentrations in groundwater and to calculate groundwater flow direction and gradient on-site The <br /> site setting is illustrated on Figure 1 Site structures and monitoring well locations are depicted on <br /> Figure 2 <br /> 1 � <br /> This report has been prepared in accordance with guidelines issued bythe California Regional Water <br /> Quality Control Board(RWQCB)-Central Valley Region for investigation of underground storage <br />' tank(UST) sites <br /> History and findings from previous investigations at the site are summarized in Appendix A <br /> I <br />' . 2.0. PROCEDURES <br /> Seven monitoring wells (MW-1 through MW-7) were monitored, purged and sampled in August <br />' 2004 Field work was performed in accordance with San Joaquin County Environmental Health <br /> Department (EHD) guidelines for sampling ground water monitoring wells and Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) guidelines for the investigation of <br />' underground storage tank (UST) sites <br />' 2 1 WELL MONITORING AND PURGE PROCEDURES <br />' On 12 August 2004 the depth to ground water in the seven monitoring wells was measured from the <br /> top of each well casing to the nearest 0 01-foot utilizing a Solinst water level meter, ground water <br /> elevations for each well were calculated by subtracting the measured depth to ground water from the <br />' surveyed casing elevation (Table 1) After water levels were measured, approximately 3 0 to 4 0 <br /> gallons of water (a minimum of 3 casing-water volumes per well) were purged from monitoring <br /> wells MW-1 through MW-6 and approximately 16 0 gallons of water were removed from well <br />' MW-7 using a Watera hydrolift pump and dedicated tubing Ground water temperature, pH and <br /> conductivity were measured at regular intervals during purging using an Oakton water analyzer <br /> Field sheets and data are included in Appendix B Purged water was stored in properly labeled <br />' Department of Transportation (DOT)-approved SS-gallon drums and stored on-site <br /> • <br /> Advanced GeoEnvironmental,Inc <br /> I <br />