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Operational Summary - As shown in Table 1, between June 27, and August 30, 2013,the <br /> CAP system treated approximately 20,430,500 gallons of groundwater at an average flow <br /> rate of 215,058 gallons per day. During the monitoring period, it is calculated that the <br /> GTF removed approximately 2.22 pounds of VOCs. <br /> On August 8, 2013 extraction well EW-3R was taken offline to replace a gasket seal. In <br /> addition, the entire system was taken offline on September 17, 2013 for tower <br /> maintenance to remove calcium buildup in air stripper tower. No other maintenance <br /> work was performed during the monitoring period. <br /> Influent and Effluent Monitoring—During the monitoring period, effluent samples were <br /> collected monthly from the GTF and submitted for analysis of VOCs by EPA Method <br /> 8260B. Table 1 summarizes the field and analytical results for the GTF during the third <br /> quarter 2013 monitoring period. As shown on Table 1, with the exception of acetone, up <br /> to three VOCs were measured at trace concentrations in the monthly effluent samples. <br /> During the September sampling event, acetone was detected at a quantifiable <br /> concentration. However, acetone is generally not detected in influent samples and is a <br /> suspected laboratory contaminant. <br /> GLA hopes that the information provided herein is sufficient for your records. If you <br /> have any questions regarding this notification, please call me at(858) 451-1136. <br /> GeoLogic Associates <br /> 1 0 <br /> William B. pez, PG, CHg <br /> Senior Geologist <br /> cc: Erin Fanning, BFI <br /> Enclosure: Table 1 —GTF Influent/Effluent Sample Results and Flow Rate <br /> Analytical Results—BC Laboratories <br /> Field Monitoring Reports—Del Tech <br /> C:\2013-0022\GTFmonrpt3Q13.docz 2 Geo-Logic Associates <br />