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Draft Supplemental Environmental Impact Report Page IV.E-15 ' Forward Inc. Landfill 2018 Expansion Project would be stored and used onsite. Hazards associated with these materials would be a ' potentially significant impact. Mitigation Measure E.6: (Same as the 2013 EIR Mitigation Measure E.6.) ' (a) All applicable regulatory guidance originating after the Forward Landfill 2002 EIR shall be implemented;all hazardous materials shall be handled in accordance with local,State, and ' federal regulations. This includes required reporting various hazardous materials-related data as mandated by the California Health and Safety Code through the web-based California Environmental Reporting System (CERS). ' (b) The site HMMP,SWPPP,Operations Manual, and Wet Weather Plan shall serve to provide guidance in the use and handling of hazardous materials during the operations of the facility. ' Implementation of Mitigation Measure E.6 would reduce the impact to a less-than-significant level. ' Impact E.7: Private groundwater production wells located downgradient of the landfill may be affected by the VOC-contaminated groundwater plume. (Same as 2013 EIR Impact E.7.) ' The description of this impact is presented in the Hydrology and Water Quality section under Impact F6 of the 2013 EIR. The potential impacts from the potential ingestion of groundwater ' from private offsite wells contaminated by the landfill-generated leachate plume would be significant if not mitigated. As described in Impact F.6,F. Hydrology and Water Quality, Forward would implement measures that would reduce the impact to a less-than-significant ' level. Impact E.B. Emissions of air toxics could pose a risk to human health. (Same as 2013 EIR ' Impact E.7.) As with the criteria pollutants (see the Air Quality Section), the project would increase toxic air ' contaminant emissions from LFG-derived sources with two options:additional LFG is controlled either by additional flare capacity (flare option) or LFG engines at a new LFG to energy facility (LFG engine option). Both of these options include the additional emissions from the Ameresco Inc.LFG to energy project that has recently been constructed. ' Air toxics within LFG typically consist of benzene, chloroform,methylene chloride, perchloroethylene, trichloroethylene,vinyl chloride, as well as other air toxics. Landfill gas ' emission estimates are based on EPA's Landfill Gas Emissions Model (LandGEM). A review of potential pathways for human exposure to toxics from the project is included in ' Appendix G, Health and Air Quality Assessment. Some of the potential pathways have been excluded because the specifics of the project mean they would not be complete pathways for the purposes of the HRA.The pathways that were examined as part of the HRA included the '