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FORWARD LANDFILL NON-WATER CORRECTIVE ACTION PLAN 5.0 ANTICIPATED METHODS OF MITIGATION Methods to repair or reduce the incidence of damage associated with the reasonably-foreseeable non-water scenarios presented in Section 4.0 are presented in the following sections. 5.1 MITIGATION OF SEISMICALLY-INDUCED IMPACTS As described in Sections 4.1.1 through 4.1.3, the probability of impact to the site from a seiche, tsunami, or ground rupture is negligible, and outside of the realm of a reasonably foreseeable impact and would not require mitigation. As presented in Section 4.1.4,the impact to the site associated with liquefaction or dynamic settlement that might occur during an MCE event is negligible, and would not require mitigation. As demonstrated in Section 4.1.5, the yield accelerations for existing slope configurations and the final cover system are significantly higher than the PGA associated with an MCE event. These results suggest that slope deformation during an MCE event would be negligible, and would not require mitigation. 5.2 MITIGATION OF FIRE-RELATED IMPACTS 5.2.1 Subsurface Fires As discussed in Section 4.3.1, subsurface fires do not require mitigation as there is no causal event since the Forward Landfill has provisions to prevent, monitor, and mediate subsurface fires in their JTD. In addition, Republic Services, Inc. has standard operating procedures for operating landfill gas systems, and Forward, Inc. has a site-specific landfill gas well alternative operating scenario. 5.2.2 Wildfires Wildfires are discussed in Section 4.3.2. Due to the location of the Forward Landfill in an agricultural and local fire authority jurisdiction, wildfires are not a causal event for the facility and therefore mitigation measures are not necessary as part of this NWCAP. However, as noted earlier, the site has established mitigation measures as part of its Fire Prevention Program. M:\2011-0128INWFA REPORT.DOCX 19 Geo-Logic Associates