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, w <br /> Response: See tentative WDRs to be considered by the RWQCB on June 7, 2002 for <br /> corrective action at the Austin Road Landfill. Section 2.5.6 - Austin Road <br /> Interim Closure, has been added to the JTD which discusses the interim <br /> closure schedule. Additionally, drawings 3, 4, 5, 6, 8 have been revised to <br /> reflect the revised grading for the interim final cover area and to indicate <br /> the revised slope gradient. <br /> Comment 4: As noted in the JTD, landfill gases are believed to be an important source <br /> of VOCs in groundwater at Austin Road landfill and a source of the <br /> intermittent detections of VOCs in groundwater at Forward. The JTD <br /> proposed to improve the existing gas extraction system at Austin Road <br /> and incorporate the Forward area into the improved system. These <br /> improvements are part of the corrective actions for clean up <br /> contaminated groundwater. A time schedule for improvements to the <br /> landfill gas monitoring and extraction system should be submitted as an <br /> addendum to the JTD. <br /> Response: See tentative WDRs to be considered by the RWQCB on June 7, 2002 for <br /> corrective action at the Austin Road Landfill. Section 2.5.6 - Austin Road <br /> Interim Closure, has been added to the JTD which discusses the landfill <br /> gas system improvement schedule. <br /> Comment 5: Forward is concurrently working on a revised Engineering Feasibility <br /> Study for cleanup of the Austin Road groundwater contamination. Staff <br /> anticipates that the study will conclude with a plan consisting of <br /> improvements to the gas extraction system, artificial recharge of treated <br /> groundwater, and addition of one or more downgradient extraction wells. <br /> A time schedule for implementing the results of the EFS should be <br /> submitted as an addendum to the JTD. This time schedule may <br /> incorporate the schedule asked for in item 4 above. <br /> Response: See tentative WDRs to be considered by the RWQCB on June 7, 2002 for <br /> corrective action at the Austin Road Landfill. Section 2.5.6 - Austin Road <br /> Interim Closure, has been added to the JTD which discusses the <br /> groundwater corrective action schedule. <br /> (L\Allied\2000.193\Corres2002\Agency Res:05/23/02) 6 <br /> t <br />