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U <br />Water Quality Monitoring Report <br />Forward Landfill <br />replaced with extraction well EW -311. To increase the volume of groundwater recovered <br />in this area, well EW -311 was installed adjacent to and deeper than well EW -3. During <br />the monitoring period, the GTF treated 22,941,900 gallons of groundwater at an <br />average flow rate of 283,151 gallons per day. During the monitoring period, GLA <br />calculated that the GTF removed approximately 2.27 pounds of VOCs. Del Tech <br />reported that the flow meter was not working properly for extraction well EW -4 during <br />the April 8, 2014 inspection, and the overload relay for extraction well EW -311 was <br />tripped during the April 23, 2014 inspection, and subsequently reset. On June 22, 2014 <br />the air stripper tower was taken off-line for acid washing and the totalizers for the <br />extraction wells were removed for repair/calibration. Additionally, the air stripper <br />totalizer is to be calibrated once the extraction well totalizers are reinstalled. Details <br />regarding the operations and maintenance are presented in Appendix C. <br />3.2 Summary <br />Groundwater quality conditions beneath the Austin Unit during the second quarter 2014 <br />monitoring period were generally similar to historical results. During the current <br />monitoring period, no VOCs were identified at DMP wells and no CLs were exceeded. <br />For the CAP/Evaluation wells, 16 wells reported one or more VOCs exceeding a PQL, <br />with CAP well AMW-1 having the greatest number of VOCs (13), including nine <br />measured above a PQL. Surface water stations and lysimeters were dry during the <br />current monitoring period. <br />M:\ 2014.0012\FA_2Q14.docx 13 <br />7/29/2014, Rev. 0 <br />