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2019 Integrated Solid Waste Management Plan Update <br />County of Hawaii <br />Since 2006, the County has taken three other important actions related to its solid waste management <br />system: <br />Completed a comprehensive engineering evaluation of its 21 recycling and transfer stations. This <br />evaluation concluded that 13 have serious failures requiring reconstruction to correct and <br />another six have serious problems that could be corrected without complete reconstruction. <br />Extended the capacity of the SHSL through sliver fill—an innovative engineering solution to <br />gaining and utilizing additional airspace. The County also implemented a comprehensive <br />compaction program. <br />3. Prepared an expansion feasibility study and capital cost estimate to assess whether undertaking a <br />7 -acre landfill expansion immediately adjacent to the SHSL would be less expensive than long - <br />hauling waste to the County's West Hawaii Sanitary Landfill (WHSL) in Pu'uanahulu. The feasibility <br />study did not support the 7 -acre expansion and this option was removed from further consideration. <br />2009 Plan <br />In 2009, the key focus of the Plan update was evaluating a series of potential options for managing <br />residuals that remain after source reduction, reuse, and recycling. After SWAC and stakeholder <br />consideration of potential options, the 2009 Plan recommended the following residuals management <br />strategy: <br />• Conduct a series of activities necessary to confirm the feasibility and cost-effectiveness of <br />undertaking development of a new landfill within the quarry adjacent to the SHSL site. <br />• Reassess trucking waste to the WHSL site including further analysis of consolidating waste at the <br />EHRSS and associated hauling operations, haul routes, traffic issues, and equipment acquisition <br />plans. <br />• Avoid issuance of RFPs for waste reduction technology during the Plan's 5 -year life cycle. During <br />each subsequent solid waste management plan review period, evaluate whether new <br />technology advances or other circumstances have occurred to warrant issuing an RFP for a <br />conversion technology for part, or all, of the County residuals management stream. <br />In addition to activities associated with handling residual wastes, the 2009 Plan presented a series of <br />recommendations regarding next steps on the path to zero waste, including expanded programs <br />targeted toward reducing the volume of landfill -bound waste and improving existing infrastructure. The <br />Plan also recommended reconstructing and upgrading one or more County recycling and transfer <br />stations each year. <br />After adopting the 2009 Plan, the County made many key decisions that will drive the functioning of <br />waste management on the island for years to come, notably the decision to truck waste (residuals) to <br />WHSL through the EHRSS (implemented in 2019). Other decisions and actions that will have a lasting <br />impact on waste management and diversion include: <br />• Constructed two green waste facilities—one in Hilo on the east side of the island, and one <br />adjacent to the WHSL on the west side of the island. <br />• Constructed seven new reuse centers located at the County recycling and transfer stations. <br />• Planned a compost facility to process more than green waste (and wood pallets). The new <br />facility will process food waste, paper, and compostable plastics (planned operation 2020). <br />• Performed major upgrades to seven recycling and transfer stations—the upgraded facilities are <br />expected to operate sufficiently through 2029. The County is also in the process of constructing <br />August 2020 ES -3 <br />