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Quarterly Progress Report—Second Quarter 2014 Austin Unit,Forward Landfill paw term"remedial system". Forward, Inc. interprets the term to include the groundwater extraction and treatment system,along with the landfill gas collection and destruction system. Landfill gas collection and destruction provides source control. Groundwater extraction and treatment provides remediation to impacted groundwater. Information relevant to each of the remediation systems is provided below. As described in the CAO, the evaluation of individual extraction points applies to both groundwater and landfill gas extraction points. Groundwater Extraction and Treatment System The groundwater extraction and treatment system includes four groundwater recovery wells (EW-1, EW-2,EW-3R and EW4),an above-ground air stripper system,and an infiltration basin located north ofthe landfill. Each of these components was previously approved by the RWQCB. Del-Tech Geotechnical Support Services, Inc. (Del-Tech) performed operations and maintenance on the groundwater extraction and treatment system during the period of April 1 through June 30,2014. The system monitoring logs from Del-Tech for the second quarter 2014 are attached. Dei-Tech records indicate that the groundwater extraction and treatment system experienced the following maintenance issues and periods of downtime during the second quarter 2014: • April 8,2014: It was observed that the flow meter at recovery well EW-4 was sticking instead of turning smoothly. • April 23, 2014: It was observed that recovery well EW-3R was offline due to a tripped overload relay, possibly as a result of a power surge. The well was reset by Del-Tech and restored to operation. • June 27, 2014: The recovery wells shut down during cleaning of the air stripper tower and calibration of the totalizer.The system experienced approximately three days of downtime due to this maintenance. Based on analytical laboratory testing results from November 20,2013,the influent to the groundwater treatment system contained 13.97 ug/L of VOCs. Based on totalizing flow meter readings from Del- Tech, an estimated 25.6 million gallons of extracted groundwater were treated from April 1 through June 30,2014,yielding approximately 2.98 pounds of VOCs removed during the noted period. There was no VOCs detected above their reporting limits (RLs) in the most recent treatment system effluent sample,collected on December 12,2013. Landfill Gas Collection and Destruction System The landfill gas collection and destruction system at the Austin Road Unit consists of 194 gas extraction wells,according to information provided by SCS Field Services, Inc. Collected landfill gas is routed to Flare A-2 for thermal destruction,with Flare A-1 serving as a back-up flare. On a weekly basis SCS Field Services records information such as methane gas concentration(percent by volume), oxygen concentration(percent by volume),carbon dioxide concentration(percent by volume),balance gas (percent by volume), flow rate (scfin), inlet pressure, outlet pressure, gas temperature at the inlet and outlet, and equivalent British Thermal Units (BTUs) consumed. The landfill gas collection and