NR 463.21(4)(d)(d) If you have a new affected source for which the initial startup date is after April 22, 2004, you shall comply with each emissions limitation, work practice standard and operation and maintenance requirement in this subchapter that applies to you upon initial startup.

NR 463.21(4)(e)(e) If your iron and steel foundry is an area source that becomes a major source of HAP, you shall meet the requirements of s. NR 460.05 (3) (c).

NR 463.21(4)(f)(f) You shall meet the notification and schedule requirements in s. NR 463.27 (1).

NR 463.21 NoteNote: Several of these notifications must be submitted before the compliance date for your affected source.

NR 463.22NR 463.22 What definitions apply to this subchapter? For terms not defined in this section, the definitions contained in chs. NR 400 and 460 apply to the terms in this subchapter, with definitions in ch. NR 460 taking precedence over definitions in ch. NR 400. If this section defines a term which is also defined in ch. NR 400 or 460, the definition in this section applies in this subchapter. In this subchapter:

NR 463.22(1)(1) “Automated conveyor and pallet cooling line” means any dedicated conveyor line or area used for cooling molds received from pouring stations.

NR 463.22(2)(2) “Automated shakeout line” means any mechanical process unit designed for and dedicated to separating a casting from a mold. These mechanical processes include shaker decks, rotary separators and high-frequency vibration units. Automated shakeout lines do not include manual processes for separating a casting from a mold, such as personnel using a hammer, chisel, pick ax, sledge hammer or jackhammer.

NR 463.22(3)(3) “Bag leak detection system” means a system that is capable of continuously monitoring relative particulate matter loadings in the exhaust of a baghouse to detect bag leaks and other upset conditions. A bag leak detection system includes an instrument that operates on triboelectric, electrodynamic, light scattering, light transmittance or other effect to continuously monitor relative particulate matter loadings.

NR 463.22(4)(4) “Binder chemical” means a component of a system of chemicals used to bind sand together into molds, mold sections and cores through chemical reaction as opposed to pressure.

NR 463.22(5)(5) “Capture system” means the collection of components used to capture gases and fumes released from one or more emissions points and then convey the captured gas stream to a control device or to the atmosphere. A capture system may include the following components as applicable to a given capture system design: duct intake devices, hoods, enclosures, ductwork, dampers, manifolds, plenums and fans.

NR 463.22(6)(6) “Cold box mold or core making line” means a mold or core making line in which the formed aggregate is hardened by catalysis with a gas.

NR 463.22(7)(7) “Combustion device” means an afterburner, thermal incinerator or scrap preheater.

NR 463.22(8)(8) “Conveyance” means the system of equipment that is designed to capture pollutants at the source, convey them through ductwork and exhaust them using forced ventilation. A conveyance may include control equipment designed to reduce emissions of the pollutants. Emissions that are released through windows, vents or other general building ventilation or exhaust systems are not considered to be discharged through a conveyance.

NR 463.22(9)(9) “Cooling” means the process of molten metal solidification within the mold and subsequent temperature reduction prior to shakeout.

NR 463.22(10)(10) “Cupola” means a vertical cylindrical shaft furnace that uses coke and forms of iron and steel such as scrap and foundry returns as the primary charge components and melts the iron and steel through combustion of the coke by a forced upward flow of heated air.

NR 463.22(11)(11) “Deviation” means any instance in which an affected source or an owner or operator of an affected source fails to meet any of the following:

NR 463.22(11)(a)(a) Any requirement or obligation established by this subchapter, including any emission limitation, operating limit, work practice standard or operation and maintenance requirement.

NR 463.22(11)(b)(b) Any term or condition that is adopted to implement an applicable requirement in this subchapter and that is included in the operating permit for any iron and steel foundry required to obtain an operating permit.

NR 463.22(11)(c)(c) Any emission limitation, operating limit or work practice standard in this subchapter during startup, shutdown or malfunction, regardless of whether or not the failure is permitted by this subchapter.

NR 463.22(12)(12) “Electric arc furnace” means a vessel in which forms of iron and steel, such as scrap and foundry returns, are melted through resistance heating by an electric current flowing through the arcs formed between the electrodes and the surface of the metal and also flowing through the metal between the arc paths.

NR 463.22(13)(13) “Electric induction furnace” means a vessel in which forms of iron and steel, such as scrap and foundry returns, are melted though resistance heating by an electric current that is induced in the metal by passing an alternating current through a coil surrounding the metal charge or surrounding a pool of molten metal at the bottom of the vessel.

NR 463.22(14)(14) “Emissions limitation” has the meaning given in s. 285.01 (16), Stats., and includes any operating limit specified in this subchapter.

NR 463.22(15)(15) “Exhaust stream” means gases emitted from a process through a conveyance, as defined in sub. (8).

NR 463.22(16)(16) “Free organic liquids” means material that fails the paint filter test by Method 9095A, “Paint Filter Liquids Test”, Revision 1, December 1996, as published in EPA Publication SW–846 “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods”, incorporated by reference in s. NR 484.06 (4) (e). If any portion of the material passes through and drops from the filter within the 5-minute test period, the material contains free liquids.

NR 463.22(17)(17) “Fresh acid solution” means a sulfuric acid solution used for the control of triethylamine emissions that has a pH of 2.0 or less.

NR 463.22(18)(18) “Fugitive emissions” means any pollutant released to the atmosphere that is not discharged through a conveyance, as defined in sub. (8).

NR 463.22(19)(19) “Furan warm box mold or core making line” means a mold or core making line in which the binder chemical system used is that system commonly designated as a furan warm box system by the foundry industry.

NR 463.22(20)(20) “Iron and steel foundry” means a facility or portion of a facility that melts one or more of the following: scrap, ingot or other forms of iron and steel, and pours the resulting molten metal into molds to produce final or near final shape products for introduction into commerce. Research and development facilities and operations that only produce non-commercial castings are not included in this definition.