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• Draft Supplemental Environmental Impact Report Page IV.E-15 • Forward Inc. Landfill 2018 Expansion Project • Impact E.6: The project would involve the use of additional regulated or hazardous materials during the proposed landfill expansion construction and operation. (Same as 2013 EIR Impact E.6.) • • Construction activities during the extended life of the landfill would include earthmoving, • paving,possible dewatering, various new construction including the new drainage and leachate collection systems, and painting. Solid waste could be generated from land clearing and • demolition of existing structures. Hazardous materials used in construction may include acids, • lime, glues, paints, solvents, and curing compounds. During operations, vehicle fueling and • equipment maintenance and cleaning would occur where diesel fuel, gasoline, oil, and grease • 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. • 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. • • • • • •