| (49) State--Any of the 50 United States and the protectorates of the United States. (50) State plan--A plan submitted pursuant to the Federal Clean Air Act, §111(d) and §129(b)(2) and 40 Code of Federal Regulations Part 60, Subpart B, that implements and enforces this division. (51) Stoker (refuse-derived fuel) combustion unit--A steam generating unit that combusts refuse-derived fuel in a semisuspension combusting mode, using air-fed distributors. (52) Total mass dioxins/furans or total mass--The total mass of tetra-through octachlorinated dibenzo-p-dioxins and dibenzofurans as determined using United States Environmental Protection Agency Reference Method 23 in 40 Code of Federal Regulations Part 60, Appendix A and the procedures specified in §113.2142 of this title (relating to What test methods must I use to stack test?). (53) Twenty-four hour daily average or 24-hour daily average--Either the arithmetic mean or geometric mean (as specified) of all hourly emission concentrations when the municipal waste combustion unit operates and combusts municipal solid waste measured during the 24 hours between 12:00 midnight and the following midnight. (54) Untreated lumber--Wood or wood products that have been cut or shaped and include wet, air-dried, and kiln-dried wood products. Untreated lumber does not include wood products that have been painted, pigment-stained, or pressure-treated by compounds such as chromate copper arsenate, pentachlorophenol, and creosote. (55) Waterwall furnace--A municipal waste combustion unit that has energy (heat) recovery in the furnace (for example, radiant heat transfer section) of the combustion unit. (56) Yard waste--Grass, grass clippings, bushes, shrubs, and clippings from bushes and shrubs. They come from residential, commercial/retail, institutional, or industrial sources as part of maintaining yards or other private or public lands. Yard waste does not include two items: (A) Construction, renovation, and demolition wastes that are exempt from the definition of "Municipal solid waste" in this section. (B) Clean wood that is exempt from the definition of "Municipal solid waste" in this section. |
