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2020 Solid Waste and Moderate <br />Risk Waste Management Plan Update <br /> <br />AX0304191054PDX 7-3 <br />"Construction debris" or "construction waste" means solid waste resulting from the <br />building or renovation of buildings, roads, and other man-made structures. <br />Construction debris includes, but is not limited to, materials such as plasterboard, <br />cement, dirt, wood, and brush. <br />"Demolition waste" or "demolition debris" means solid waste resulting from the demolition <br />or razing of buildings, roads, and other man-made structures. Demolition waste includes, <br />but is not limited to, concrete, brick, bituminous concrete, wood and masonry, <br />composition roofing and roofing paper, steel, and minor amounts of other metals like <br />copper. <br />7.2.2 Existing Conditions <br />In Kittitas County, C&D waste is disposed at the two transfer stations and at Ryegrass Landfill, a limited <br />purpose landfill. The Washington Administrative Code (WAC 173-350-100) defines limited purpose <br />landfills as follows: <br />"Limited purpose landfill" means a landfill which is not regulated or permitted by other <br />state or federal environmental regulations that receives solid wastes limited by type or <br />source. Limited purpose landfills include, but are not limited to, landfills that receive <br />segregated industrial solid waste, construction, demolition and land clearing debris, wood <br />waste, ash (other than special incinerator ash), and dredged material. <br />Due to the leveling of the economy after the 2007 peak and 2008 crash and its effect on new construction <br />in the Kittitas Valley, C&D disposal by the County has stayed relatively steady until the recent jump; <br />ranging from 5,124 tons in 2015 to 8,189 tons in 2017 and then decreasing slightly to 6,883 tons in 2018. <br />This is in contrast to the peak C&D disposal of over 9,000 tons in 2007. Additional evidence of this <br />leveling and the associated decrease in C&D waste generation is reflected in the number of building <br />permits issued by Kittitas County. The average number of building permits issued per year has remained <br />relatively steady since 2013. <br />7.2.3 Disposal <br />7.2.3.1 Disposal at Transfer Stations <br />Construction and demolition debris from both the northern part of Kittitas County and the Ellensburg area <br />is handled in the same way. Residents of unincorporated Kittitas County and incorporated cities bring <br />C&D waste directly to the Cle Elm or Ellensburg transfer stations. If the C&D debris contains no <br />putrescible materials, the customer is charged a reduced fee. The “clean” C&D waste is then hauled by <br />the transfer station operations contractor to Ryegrass Limited Purpose Landfill for final disposal. <br />7.2.3.2 Disposal at Ryegrass Landfill <br />Licensed contractors and other businesses with customer accounts haul C&D waste directly to Ryegrass <br />Landfill. The landfill does not accept cash customers. The transfer station operations contractor and <br />contracted/certificated haulers (such as Waste Management) also haul C&D waste directly to Ryegrass. <br />Ryegrass Landfill accepts the following C&D materials for disposal: <br /> Asphalt <br /> Bath tubs <br /> Bricks <br /> Concrete <br /> Culverts <br /> Doors <br /> Fencing material <br /> Insulation i) . I ,