COMPLIANCE INFO_AMENDED JTD 1/5/2026

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Foothill Landfill Storm Water Pollution Prevention Plan Page 40 Row No. Minimum Permit Requirement Facility-Specific Implementation 2. Minimize or prevent material tracking The paved access road and area around the scale house are periodically cleaned to prevent track out. The long one-half mile entrance road serves to prevent or reduce the track out of solids onto Waverly Road. (However, Waverly Road is a public dirt road.) 3. Minimize dust generated from industrial materials or activities; Water is used to control dust in the landfill areas and dirt roads with a water truck. Daily cover is placed on active landfill operations to minimize windblown trash, sediment, and emissions. Ultimately, vegetation is established on the slopes and the top of the completed landfill modules. 4. Ensure that all facility areas impacted by rinse/wash waters are cleaned as soon as possible; All washing of equipment is performed within the active landfill module or in a permeable area in such a way that discharge does not occur. 5. Cover all stored industrial materials that can be readily mobilized by contact with storm water; The white waste / e-waste accumulation bins, storage building and the landfill gas energy plant equipment are covered with a rain-proof structure. 6. Contain all stored non-solid industrial materials or wastes (e.g., particulates, powders, shredded paper, etc.) that can be transported or dispersed by the wind or contact with storm water; The wastes being disposed at the landfill may contain these types of materials. In accordance with the WDR, they are covered at the end of each operating day with a tarp or soil cover. Wind screens are used in active modules. The landfill modules are designed to capture leachate, to prevent migration of pollutants to groundwater, and to capture air emissions. Leachate is returned the lined landfill modules (not Module #1). The completed landfill modules are permanently capped with an approved cover and vegetation. 7. Prevent disposal of any rinse/wash waters or industrial materials into the storm water conveyance system; Landfill leachate is captured and returned to the landfill. It is not allowed to discharge to the retention basin. Landfill gas condensate from the lined modules (LF-2) handled along with the leachate. It is not applied for dust suppression outside of the landfill. Landfill gas condensate from the unlined module (LF- 1) is either destroyed in a landfill gas flare (to be installed in 2020) or carried off-site. 8. Minimize storm water discharges from non- industrial areas (e.g., storm water flows from employee parking area) that contact industrial areas of the facility; and, The facility’s only non-industrial areas consist of the range land located around the landfill complex. Non- industrial areas, for the most part, do not drain into industrial areas. Most industrial areas discharge to one of the retention basins. 9. Minimize authorized NSWDs from non- industrial areas (e.g., potable water, fire hydrant testing, etc.) that contact industrial areas of the facility. The only authorized NSWD from the non-industrial range land areas would be the surfacing and runoff of shallow groundwater. This water would discharge to various seasonal creeks and not mix with industrial discharges.