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Draft Supplemental Environmental Impact Report Page IV.E-7 Forward Inc. Landfill 2018 Expansion Project GAMAQI and Update to District's Risk Management Policy to Address OEHHA's Revised Risk Assessment Guidance Documentlo): • Probability of contracting cancer for the Maximally Exposed Individual exceeds 20 in one million. • Ground-level concentrations of non-carcinogens exceed the acceptable health-based risk concentrations (i.e., a Hazard Index of greater than 1.0). In addition to overall risks for public receptors analyzed in the HRA, the landfill expanded operation must conform to safe practices for its operators and programs to minimize and appropriately manage hazardous materials. Impacts and Mitigation Measures Impact E.1: Worker exposure to chemical contaminants and particulates during landfill operations would exceed levels protective of human health or safety. (Same as 2013 EIR Impact E.1) The project would increase the amount of potentially contaminated waste products because of the proposed expansion of the Class II landfill,but the expansion would be smaller than the expansion project evaluated in the 2013 EIR. The current landfill allows for such materials as asbestos and automobile shredder waste,and a variety of nonhazardous commercial and industrial wastes including but not limited to sewage sludge;water treatment sludge;grit/grease; holding tank pumpings;storm drain cleanings;dredge and fill materials;fiberglass;soils contaminated with petroleum hydrocarbons,metals,nonpetroleum-based organics,and/or soluble solids;ash;treated infectious waste;metals-contaminated wastes;organic compound contaminated materials; chemical toilet waste;boiler blowdown water(in dry form only); construction and demolition waste;processed tires;septic tank pumping;cleansed pesticide containers;and nonhazardous leachate.The Forward Landfill accepts cannery wastes in accordance with its WDRs and SWFP. The anticipated closure date for the existing Forward Landfill is 2030. The expanded project would be permitted to dispose a total of 8,668 tons per day of solid waste,the same as currently permitted,but greater than the current actual. The proposed project assumes 620 vehicles per day,the same as currently permitted daily trips but greater than the current actual daily trips (which average approximately 233 trucks/day). These trips would occur over 7 days a week, as in the existing condition,with closure of the landfill being extended to 2036. These changes could affect the health and safety of workers at the landfill by potentially exposing them to a variety of contaminants in air, soil or water that are associated with the materials brought into the landfill. Fugitive dust with airborne contaminants could be inhaled, dermal contact and ingestion of contaminated soil and/or water could occur. o San Joaquin Valley Unified Air Pollution Control District,Update to District's Risk Management Policy to Address OEHHA's Revised Risk Assessment Guidance Document,March 18,2015.