Terms used but not defined in this division are defined in the Federal Clean Air Act and in 40 Code of Federal Regulations Part 60, Subparts A and B. (1) Administrator--The administrator of the United States Environmental Protection Agency or his/her authorized representative or the administrator of a state air pollution control agency. (2) Air curtain incinerator--An incinerator that operates by forcefully projecting a curtain of air across an open chamber or pit in which combustion occurs. Incinerators of that type can be constructed above or below ground and with or without refractory walls and floor. (3) Batch municipal waste combustion unit--A municipal waste combustion unit designed so it cannot combust municipal solid waste continuously 24 hours per day because the design does not allow waste to be fed to the unit or ash to be removed during combustion. (4) Calendar quarter--Three consecutive months (nonoverlapping) beginning on: January 1, April 1, July 1, or October 1. (5) Calendar year--365 (or 366 consecutive days in leap years) consecutive days starting on January 1 and ending on December 31. (6) Chief facility operator--The person in direct charge and control of the operation of a municipal waste combustion unit. That person is responsible for daily onsite supervision, technical direction, management, and overall performance of the municipal waste combustion unit. (7) Class I units--Small municipal waste combustion units subject to this division that are located at municipal waste combustion plants with an aggregate plant combustion capacity greater than 250 tons per day of municipal solid waste. See the definition in this section of "Municipal waste combustion plant capacity" for specification of which units at a plant site are included in the aggregate capacity calculation. (8) Class II units--Small municipal combustion units subject to this division that are located at municipal waste combustion plants with aggregate plant combustion capacity less than or equal to 250 tons per day of municipal solid waste. See the definition in this section of "Municipal waste combustion plant capacity" for specification of which units at a plant site are included in the aggregate capacity calculation. (9) Clean wood--Untreated wood or untreated wood products including clean untreated lumber, tree stumps (whole or chipped), and tree limbs (whole or chipped). Clean wood does not include two items: (A) "Yard waste," which is defined elsewhere in this section. (B) Construction, renovation, or demolition wastes (for example, railroad ties and telephone poles) that are exempt from the definition of "Municipal solid waste" in this section. (10) Co-fired combustion unit--A unit that combusts municipal solid waste with nonmunicipal solid waste fuel (for example, coal, industrial process waste). To be considered a co-fired combustion unit, the unit must be subject to a federally enforceable permit that limits it to combusting a fuel feed stream which is 30 percent or less (by weight) municipal solid waste as measured each calendar quarter. (11) Continuous burning--The continuous, semicontinuous, or batch feeding of municipal solid waste to dispose of the waste, produce energy, or provide heat to the combustion system in preparation for waste disposal or energy production. Continuous burning does not mean the use of municipal solid waste solely to thermally protect the grate or hearth during the startup period when municipal solid waste is not fed to the grate or hearth. (12) Continuous emission monitoring system--A monitoring system that continuously measures the emissions of a pollutant from a municipal waste combustion unit. (13) Dioxins/furans--Tetra-through octachlorinated dibenzo-p-dioxins and dibenzofurans. (14) Effective date of state plan approval--The effective date that the United States Environmental Protection Agency (EPA) approves the state plan. The Federal Register specifies the date in the notice that announces the EPA's approval of the state plan. (15) Eight-hour block average--The average of all hourly emission concentrations or parameter levels when the municipal waste combustion unit operates and combusts municipal solid waste measured over any of three 8-hour periods of time: (A) 12:00 midnight to 8:00 a.m. (B) 8:00 a.m. to 4:00 p.m. (C) 4:00 p.m. to 12:00 midnight. (16) Federally enforceable--All limits and conditions the administrator can enforce (including the requirements of 40 Code of Federal Regulations (CFR) Parts 60, 61, and 63), requirements in a state's implementation plan, and any permit requirements established under 40 CFR §52.21 or under 40 CFR §51.18 and 40 CFR §51.24. (17) First calendar half--The period that starts on January 1 and ends on June 30 in any year. (18) Fluidized bed combustion unit--A unit where municipal waste is combusted in a fluidized bed of material. The fluidized bed material may remain in the primary combustion zone or may be carried out of the primary combustion zone and returned through a recirculation loop. (19) Four-hour block average or 4-hour block average--The average of all hourly emission concentrations or parameter levels when the municipal waste combustion unit operates and combusts municipal solid waste measured over any of six 4-hour periods: (A) 12:00 midnight to 4:00 a.m. (B) 4:00 a.m. to 8:00 a.m. (C) 8:00 a.m. to 12:00 noon. (D) 12:00 noon to 4:00 p.m. (E) 4:00 p.m. to 8:00 p.m. (F) 8:00 p.m. to 12:00 midnight. (20) Mass burn refractory municipal waste combustion unit--A field-erected municipal waste combustion unit that combusts municipal solid waste in a refractory wall furnace. Unless otherwise specified, that includes municipal waste combustion units with a cylindrical rotary refractory wall furnace. (21) Mass burn rotary waterwall municipal waste combustion unit--A field-erected municipal waste combustion unit that combusts municipal solid waste in a cylindrical rotary waterwall furnace. (22) Mass burn waterwall municipal waste combustion unit--A field-erected municipal waste combustion unit that combusts municipal solid waste in a waterwall furnace. (23) Maximum demonstrated load of a municipal waste combustion unit--The highest 4-hour block arithmetic average municipal waste combustion unit load achieved during 4 consecutive hours in the course of the most recent dioxins/furans stack test that demonstrates compliance with the applicable emission limit for dioxins/furans specified in this division. (24) Maximum demonstrated temperature of the particulate matter control device--The highest 4-hour block arithmetic average flue gas temperature measured at the inlet of the particulate matter control device during 4 consecutive hours in the course of the most recent stack test for dioxins/furans emissions that demonstrates compliance with the limits specified in this division. (25) Medical/infectious waste--Any waste meeting the definition of "medical/infectious waste" in 40 Code of Federal Regulations §60.51c. (26) Mixed fuel-fired (pulverized coal/refuse-derived fuel) combustion unit--A combustion unit that combusts coal and refuse-derived fuel simultaneously, in which pulverized coal is introduced into an air stream that carries the coal to the combustion chamber of the unit where it is combusted in suspension. That includes both conventional pulverized coal and micropulverized coal. (27) Modification or modified municipal waste combustion unit--A municipal waste combustion unit you have changed after June 6, 2001, and that meets one of two criteria: (A) The cumulative cost of the changes over the life of the unit exceeds 50 percent of the original cost of building and installing the unit (not including the cost of land) updated to current costs. (B) Any physical change in the municipal waste combustion unit or change in the method of operating it that increases the emission level of any air pollutant for which new source performance standards have been established under the Federal Clean Air Act, §111 or §129. Increases in the emission level of any air pollutant are determined when the municipal waste combustion unit operates at 100 percent of its physical load capability and are measured downstream of all air pollution control devices. Load restrictions based on permits or other nonphysical operational restrictions cannot be considered in the determination. (28) Modular excess-air municipal waste combustion unit--A municipal waste combustion unit that combusts municipal solid waste, is not field-erected, and has multiple combustion chambers, all of which are designed to operate at conditions with combustion air amounts in excess of theoretical air requirements. Cont'd... |
