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Facts in Support of the Finding: <br /> The potential for groundwater contamination is discussed in Section IIIX of the EIR. The <br /> measures above are designed to mitigate the effects of potential liner or leachate collection <br /> system failure. <br /> e.Impacts of Increased Leachate Production <br /> Potential Significant Impact(K 6): <br /> Project activities that increase leachate production from the existing landfill materials during <br /> various phases could alternatively facilitate the remediation of local groundwater,or result in <br /> groundwater contamination. <br /> Finding: <br /> Based upon the analysis in the EIR,use of the existing extraction wells will make potential <br /> contamination of groundwater due to increased leachate production less than significant. <br /> i <br /> The following mitigation measure will mitigate these impacts to below a level of significance. <br /> Mitigation Measure (Impact K.6): <br /> (a) The extraction wells developed as part of the CAP shall he maintained and <br /> monitored during Phases V and VI, to be employed as needed for the extraction of any <br /> residual contamination by leachate. <br /> Facts in Support of the Finding: <br /> I <br /> The potential for increased leachate production is discussed in Section IIIX of the EIR. The <br /> measure above is designed to mitigate the effects of contamination of groundwater from <br /> increased leachate production. <br /> f.Potential Water Contamination from Damage to Liner and/or Leachate Collection System <br /> I <br /> Potential Significant Impact(K 7): j <br /> i <br /> groundwater contamination could result if differential settlement damaged the <br /> Surface and/or grou g � <br /> liner and/or leachate collections stem of the vertical expansion portion of the landfill(Phases V <br /> Y p � <br /> and VI). <br /> Finding: <br /> Based upon the analysis in the EIR,settlement of the existing landfill,final design of the vertical <br /> expansion with additional liner components if needed,continued use of the existing extraction <br /> wells, and review of the liner and leachate collection system for the vertical expansion upon <br /> completion of the final design drawings will make potential water contamination due to liner or <br /> leachate collection system damage from differential settlement less than significant. <br /> 46 <br />