NR 440.216(2)(f)(f) “Dioxin/furan” means tetra- through octa- chlorinated dibenzo-p-dioxins and dibenzofurans. NR 440.216(2)(fm)(fm) “First calendar half” means the period starting on January 1 and ending on June 30 in any year. NR 440.216(2)(g)(g) “Four-hour block average” or “4-hour block average” means the average of all hourly emission concentrations when the affected facility is operating and combusting municipal solid waste measured over 4-hour periods of time from 12:00 midnight to 4 a.m., 4 a.m. to 8 a.m., 8 a.m. to 12:00 noon, 12:00 noon to 4 p.m., 4 p.m. to 8 p.m. and 8 p.m. to 12:00 midnight. NR 440.216(2)(gm)(gm) “Mass burn refractory municipal waste combustor” means a field-erected combustor that combusts municipal solid waste in a refractory wall furnace. Unless otherwise specified, this includes combustors with a cylindrical rotary refractory wall furnace. NR 440.216(2)(h)(h) “Mass burn rotary waterwall municipal waste combustor” means a field-erected combustor that combusts municipal solid waste in a cylindrical rotary waterwall furnace or on a tumbling-tile grate. NR 440.216(2)(hm)(hm) “Mass burn waterwall municipal waste combustor” means a field-erected combustor that combusts municipal solid waste in a waterwall furnace. NR 440.216(2)(i)(i) “Materials separation plan” means a plan that identifies both a goal and an approach to separate certain components of municipal solid waste for a given service area in order to make the separated materials available for recycling. A materials separation plan may include elements such as drop-off facilities, buy-back or deposit-return incentives, curbside pickup programs or centralized mechanical separation systems. A materials separation plan may include different goals or approaches for different subareas in the service area, and may include no materials separation activities for certain subareas or, if warranted, an entire service area. NR 440.216(2)(im)(im) “Maximum demonstrated municipal waste combustor unit load” means the highest 4-hour arithmetic average municipal waste combustor unit load achieved during 4 consecutive hours during the most recent dioxin/furan performance test demonstrating compliance with the applicable limit for municipal waste combustor organics specified under sub. (5). NR 440.216(2)(j)(j) “Maximum demonstrated particulate matter control device temperature” means the highest 4-hour arithmetic average flue gas temperature measured at the particulate matter control device inlet during 4 consecutive hours during the most recent dioxin/furan performance test demonstrating compliance with the applicable limit for municipal waste combustor organics specified under sub. (5). NR 440.216(2)(jm)(jm) “Modification” or “modified municipal waste combustor unit” means a municipal waste combustor unit to which changes have been made after June 19, 1996 if the cumulative cost of the changes, over the life of the unit, exceed 50% of the original cost of construction and installation of the unit, not including the cost of any land purchased in connection with the construction or installation, updated to current costs; or any physical change in the municipal waste combustor unit or change in the method of operation of the municipal waste combustor unit which increases the amount of any air pollutant emitted by the unit for which standards have been established under section 129 or section 111 of the Act (42 USC 7429 or 7411). Increases in the amount of any air pollutant emitted by the municipal waste combustor unit are determined at 100% physical load capability and downstream of all air pollution control devices, with no consideration given for load restrictions based on permits or other nonphysical operational restrictions. NR 440.216(2)(k)(k) “Modular excess-air municipal waste combustor” means a combustor that combusts municipal solid waste and that 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. NR 440.216(2)(km)(km) “Modular starved-air municipal waste combustor” means a combustor that combusts municipal solid waste and that is not field-erected and has multiple combustion chambers in which the primary combustion chamber is designed to operate at substoichiometric conditions. NR 440.216(2)(L)(L) “Municipal solid waste” or “municipal-type solid waste” or “MSW” means household, commercial or retail, and institutional waste. Household waste includes material discarded by single and multiple residential dwellings, hotels, motels and other similar permanent or temporary housing establishments or facilities. Commercial or retail waste includes material discarded by stores, offices, restaurants, warehouses, nonmanufacturing activities at industrial facilities, and other similar establishments or facilities. Institutional waste includes material discarded by schools, nonmedical waste discarded by hospitals, material discarded by nonmanufacturing activities at prisons and government facilities and material discarded by other similar establishments or facilities. Household, commercial or retail and institutional waste does not include used oil; sewage sludge; wood pallets; construction, renovation and demolition wastes, which includes but is not limited to railroad ties and telephone poles; clean wood; industrial process or manufacturing wastes; medical waste; or motor vehicles, including motor vehicle parts or vehicle fluff. Household, commercial or retail and institutional wastes include yard waste, refuse-derived fuel and motor vehicle maintenance materials limited to vehicle batteries and tires except as specified in sub. (1) (g). NR 440.216(2)(Lm)(Lm) “Municipal waste combustor”, “MWC” or “municipal waste combustor unit” means any setting or equipment that combusts solid, liquid or gasified municipal solid waste including field-erected incinerators, with or without heat recovery; modular incinerators, starved-air or excess-air; boilers, that is, steam generating units; furnaces, whether suspension-fired, grate-fired, mass-fired, air curtain incinerators or fluidized bed-fired; and pyrolysis or combustion units. Municipal waste combustors do not include pyrolysis or combustion units located at a plastics or rubber recycling unit as specified in sub. (1) (m). Municipal waste combustors do not include cement kilns firing municipal solid waste. Municipal waste combustors do not include internal combustion engines, gas turbines or other combustion devices that combust landfill gases collected by landfill gas collection systems. The boundaries of a municipal solid waste combustor are defined as follows: NR 440.216(2)(Lm)1.1. The municipal waste combustor unit includes, but is not limited to, the municipal solid waste fuel feed system, grate system, flue gas system, bottom ash system and the combustor water system. The municipal waste combustor boundary starts at the municipal solid waste pit or hopper and extends through the combustor flue gas system, which ends immediately following the heat recovery equipment or, if there is no heat recovery equipment, immediately following the combustion chamber; the combustor bottom ash system, which ends at the truck loading station or similar ash handling equipment that transfers the ash to final disposal, including all ash handling systems that are connected to the bottom ash handling system; and the combustor water system, which starts at the feed water pump and ends at the piping exiting the steam drum or superheater. NR 440.216(2)(Lm)2.2. The municipal waste combustor unit does not include air pollution control equipment, the stack, water treatment equipment or the turbine-generator set. NR 440.216(2)(m)(m) “Municipal waste combustor acid gases” means all acid gases emitted in the exhaust gases from municipal waste combustor units including sulfur dioxide and hydrogen chloride gases. NR 440.216(2)(mm)(mm) “Municipal waste combustor metals” means metals and metal compounds emitted in the exhaust gases from municipal waste combustor units. NR 440.216(2)(n)(n) “Municipal waste combustor organics” means organic compounds emitted in the exhaust gases from municipal waste combustor units and includes tetra- through octa- chlorinated dibenzo-p-dioxins and dibenzofurans. NR 440.216(2)(nm)(nm) “Municipal waste combustor plant” means one or more affected facilities, as specified in sub. (1), at the same location. NR 440.216(2)(o)(o) “Municipal waste combustor unit capacity” means the maximum charging rate of a municipal waste combustor unit expressed in tons per day of municipal solid waste combusted, calculated according to the procedures under sub. (12) (j). Subsection (12) (j) includes procedures for determining municipal waste combustor unit capacity for continuous and batch feed municipal waste combustors. NR 440.216(2)(om)(om) “Municipal waste combustor unit load” means the steam load of the municipal waste combustor unit measured as specified in sub. (12) (i) 6. NR 440.216(2)(p)(p) “Particulate matter” means total particulate matter emitted from municipal waste combustor units as measured by Method 5 of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1). NR 440.216(2)(pm)(pm) “Plastics or rubber recycling unit” means an integrated processing unit where plastics, rubber or rubber tires are the only feed materials, except that incidental contaminants may be included in the feed materials, and the feed materials are processed into a chemical plant feedstock or petroleum refinery feedstock, where the feedstock is marketed to and used by a chemical plant or petroleum refinery as input feedstock. The combined weight of the chemical plant feedstock and petroleum refinery feedstock produced by the plastics or rubber recycling unit on a calendar quarter basis shall be more than 70% of the combined weight of the plastics, rubber and rubber tires processed by the plastics or rubber recycling unit on a calendar quarter basis. The plastics, rubber or rubber tire feed materials to the plastics or rubber recycling unit may originate from the separation or diversion of plastics, rubber or rubber tires from MSW or industrial solid waste, and may include manufacturing scraps, trimmings, and off-specification plastics, rubber and rubber tire discards. The plastics, rubber and rubber tire feed materials to the plastics or rubber recycling unit may contain incidental contaminants, for example, paper labels on plastic bottles or metal rings on plastic bottle caps, etc. NR 440.216(2)(q)(q) “Potential hydrogen chloride emission concentration” means the hydrogen chloride emission concentration that would occur from combustion of municipal solid waste in the absence of any emission controls for municipal waste combustor acid gases. NR 440.216(2)(qm)(qm) “Potential mercury emission concentration” means the mercury emission concentration that would occur from combustion of municipal solid waste in the absence of any mercury emissions control. NR 440.216(2)(r)(r) “Potential sulfur dioxide emissions” means the sulfur dioxide emission concentration that would occur from combustion of municipal solid waste in the absence of any emission controls for municipal waste combustor acid gases. NR 440.216(2)(rm)(rm) “Pulverized coal and refuse-derived fuel mixed fuel-fired combustor” means a combustor that fires 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 fired in suspension. This includes both conventional pulverized coal and micropulverized coal. NR 440.216(2)(s)(s) “Pyrolysis or combustion unit” means a unit that produces gases, liquids or solids through the heating of municipal solid waste, and the gases, liquids or solids produced are combusted and emissions vented to the atmosphere.