Chapter NR 406

NR 406.04(1)(pm)1. 1. The equipment has a total air to solvent interface of 1.0 square meters or less during operation.

NR 406.04(1)(pm)2. 2. The equipment is not a major source or located at a major source, as defined in s. NR 460.02 (24).

NR 406.04(1)(pr) (pr) Conveyorized non-vapor degreasing and conveyorized vapor degreasing equipment which uses halogenated HAP solvent and is not a major source or located at a major source, as defined in s. NR 460.02 (24).

NR 406.04(1)(q) (q) Private alcohol fuel production systems as defined in s. 289.44 (1) (c), Stats.

NR 406.04(1)(r) (r) Perchloroethylene dry cleaning area sources as defined in s. NR 468.20 (2) (am).

NR 406.04(1)(rm) (rm) Chromium electroplating area sources and chromium anodizing area sources as defined in s. NR 460.02 (5).

NR 406.04(1)(s) (s) Crematories.

NR 406.04(1)(t) (t) Indirect malt dryers which are designed to burn fuels specified in par. (a) at a heat input rate less than the rates specified in par. (a).

NR 406.04(1)(u) (u) Gasoline dispensing facilities which dispense gasoline or other petroleum products.

NR 406.04(1)(v) (v) Bulk gasoline plants which distribute gasoline or other petroleum products.

NR 406.04(1)(w) (w) Restricted use reciprocating internal combustion engines which are fueled by gaseous fuels, gasoline, or a clean fuel and which have a combined total electrical output of less than 3,000 kilowatts, or the equivalent in brake horsepower. An owner or operator claiming exemption under this paragraph shall maintain records of all of the following:

NR 406.04(1)(w)1. 1. The electrical output or equivalent in brake horsepower of each engine.

NR 406.04(1)(w)2. 2. The total hours each engine is operated during a year.

NR 406.04(1)(x) (x) Any quarry, mine or other facility where nonmetallic minerals are extracted that is not a ledge rock quarry or industrial sand mine.

NR 406.04(1)(y) (y) Ledge rock quarries with actual production of less than 25,000 tons per month on a rolling 12 month average, or with actual operation of less than 365 days per 5 year period.

NR 406.04(1)(z) (z) Industrial sand mines with actual production of less than 2,000 tons per month on a rolling 12 month average.

NR 406.04(1)(za) (za) Fixed sand and gravel plants and fixed crushed stone plants with capacities of 25 tons per hour or less.

NR 406.04(1)(zb) (zb) Portable sand and gravel plants and portable crushed stone plants with capacities of 150 tons per hour or less.

NR 406.04(1)(zc) (zc) The addition or replacement of the following equipment at a nonmetallic mineral processing facility which has an operation permit or which has filed a complete application for an operation permit pursuant to ch. NR 407:

NR 406.04(1)(zc)1. 1. Any crusher other than an initial crusher.

NR 406.04(1)(zc)2. 2. Any grinding mill other than an initial grinding mill.

NR 406.04(1)(zc)3. 3. Any screening operation.

NR 406.04(1)(zc)4. 4. Any bucket elevator.

NR 406.04(1)(zc)5. 5. Any belt conveyor.

NR 406.04(1)(zc)6. 6. Any bagging operation.

NR 406.04(1)(zc)7. 7. Any storage bin.

NR 406.04(1)(zc)8. 8. Any grizzly.

NR 406.04(1)(zc)9. 9. Any pan feeder.

NR 406.04(1)(zc)10. 10. Any other nonmetallic mineral processing equipment subject to s. NR 440.688 other than an initial crusher or initial grinding mill.

NR 406.04(1)(zg) (zg) Equipment that temporarily increases steam generation capability at a source provided that all of the following conditions are met:

NR 406.04(1)(zg)1. 1. The equipment will be installed and operated only when at least one of the permanent steam generating units at the source is out of service for maintenance, repair, or an emergency, except that the temporary equipment and the permanent steam generating equipment being taken out of service for maintenance, repair, or an emergency may operate simultaneously for up to 24 hours during startup or shutdown of the permanent steam generating equipment.

NR 406.04(1)(zg)2. 2. The equipment will not be operated for more than 3,200 hours and will be shut down and removed within 9 calendar months after installation.

NR 406.04(1)(zg)3. 3. Only natural gas will be used as fuel in the equipment.

NR 406.04(1)(zg)4. 4. The equipment will meet all applicable emission limits.

NR 406.04(1)(zg)5. 5. All applicable monitoring requirements will be met during the equipment’s period of use.

NR 406.04(1)(zg)6. 6. Use of the equipment will not cause or exacerbate an exceedance of any ambient air quality standard or ambient air increment in s. NR 404.04 or 404.05.

NR 406.04(1)(zg)7. 7. A complete application for exemption is submitted to the department for approval. The application shall contain all of the following:

NR 406.04(1)(zg)7.a. a. A description of the equipment.

NR 406.04(1)(zg)7.b. b. The reason for the need to use the equipment.

NR 406.04(1)(zg)7.c. c. A description of how the conditions in subds. 1. to 6. will be met.

NR 406.04(1)(zg)8. 8. The department approves the application for exemption submitted under subd. 7. The department shall approve or deny the exemption in writing within 10 business days after receipt of a complete application.

NR 406.04(1)(zh) (zh)

NR 406.04(1)(zh)1. 1. Any construction, modification, replacement, relocation or reconstruction of an emissions unit at a stationary source which is exempt from the requirement to obtain an operation permit under s. NR 407.03 (1m), provided the stationary source still qualifies for the exemption under s. NR 407.03 (1m) after completion of the proposed construction, modification, replacement, relocation or reconstruction.

NR 406.04(1)(zh)2. 2. Construction of a new facility if the facility will be exempt from the requirement to obtain an operation permit under s. NR 407.03 (1m) after completion of the proposed construction.

NR 406.04(1)(zi) (zi) Secondary aluminum production facilities as defined by s. NR 463.12 (36).

NR 406.04(1f) (1f) Modifications to sources under plant-wide applicability limitations. Notwithstanding the provisions of subs. (1) and (2), no construction permit is required for modification of a source that is regulated by a plant-wide applicability limitation under s. NR 405.18 or 408.11 provided all of following criteria are met:

NR 406.04(1f)(a) (a) The modification will not cause or exacerbate an exceedance of an ambient air quality increment or standard.

NR 406.04(1f)(b) (b) The modification does not trigger a requirement under section 111 or 112 of the Act (42 USC 7411 or 7412), excluding section 112(d)(5) or (r) (42 USC 7412(d)(5) or (r)).

NR 406.04(1f)(d) (d) Emissions from the source, as modified, will be able to comply with the plant-wide applicability limit.

NR 406.04(1f)(e) (e) Any increase in emissions, due to the modification, of air contaminants not regulated by a plant-wide applicability limitation, does not exceed the maximum theoretical emission levels specified in sub. (2) (b), (c), (cm), (d) and (f).

NR 406.04(1f)(f) (f) For new or modified sources for which no construction permit is required, an operation permit application shall be submitted as required under s. NR 407.04 (1) (b) 3. prior to commencing construction or modification.

NR 406.04(1k) (1k) Projects evaluated for significant net emissions increase. Notwithstanding the provisions of s. NR 406.04 (1) and (2), no construction permit is required for a modification to an existing emissions unit, as defined in s. NR 405.02 (12) or 408.02 (13), at an existing major stationary source, as defined in s. NR 405.02 (22), or an existing major source, as defined in s. NR 408.02 (21), which does not result in a significant emissions increase, as defined in s. NR 405.02 (27m) or 408.02 (32m), provided all of the following criteria are met:

NR 406.04(1k)(a) (a) The modification will not cause or exacerbate an exceedance of an ambient air quality increment or standard.

NR 406.04(1k)(b) (b) The modification does not trigger a requirement under section 111 or 112 of the Act (42 USC 7411 or 7412), excluding section 112(d)(5) or (r) (42 USC 7412(d)(5) or (r)).

NR 406.04(1k)(c) (c) The modification does not require enforceable conditions to limit potential to emit.

NR 406.04 Note Note: For new or modified sources for which no construction permit is required, an operation permit application may be required to be submitted under s. NR 407.04 (1) (b) 3. prior to commencing construction or modification.

NR 406.04(1m) (1m) Asbestos abatement notice. Each asbestos abatement notice of intention is considered an application for permit exemption. The department may place conditions on any permit exemption granted under sub. (1) (n).

NR 406.04(1q) (1q) Sources exempt based on controlled actual emissions. No construction permit is required for any emissions unit constructed, modified, replaced, relocated or reconstructed at a stationary source where all of the following criteria and requirements are met:

NR 406.04(1q)(a) (a) The owner or operator of the stationary source has a facility-wide operation permit under ch. NR 407 or has submitted a timely and complete application for a facility-wide operation permit.

NR 406.04(1q)(b) (b) Actual emissions from all of the constructed, modified, replaced, relocated and reconstructed emissions units do not exceed any of the following levels:

NR 406.04(1q)(b)1. 1. 1,666 pounds in any month averaged over any consecutive 12-month period for each of the following air contaminants: particulate matter, nitrogen oxide, sulfur dioxide, PM10, carbon monoxide and volatile organic compounds.

NR 406.04(1q)(b)2. 2. 10 pounds in any month averaged over any consecutive 12-month period for lead.

NR 406.04(1q)(c) (c) None of the emissions units constructed, modified, replaced, relocated or reconstructed requires a new BACT or LAER determination under ch. NR 445 as a result of the new project.

NR 406.04(1q)(d) (d) None of the emissions units constructed, modified, replaced, relocated or reconstructed are subject to new permitting requirements under ch. NR 405 or 408 as a result of the new project.

NR 406.04(1q)(e) (e) The owner or operator of the stationary source submits to the department a complete application for an operation permit revision, or an updated application for an operation permit, which includes each new, modified, replaced, relocated or reconstructed emissions unit, prior to commencing construction, modification, replacement, relocation or reconstruction and does all of the following:

NR 406.04(1q)(e)1. 1. In the operation permit revision application, or updated operation permit application, proposes monitoring of any control equipment used to limit actual emissions from any emissions unit being constructed, modified, replaced, relocated or reconstructed in accordance with the monitoring requirements in s. NR 439.055.

NR 406.04(1q)(e)2. 2. Commences monitoring of any control equipment as proposed in subd. 1., and maintains any records necessary to demonstrate compliance with any applicable emission limitation, upon startup of any newly constructed, modified, replaced, relocated or reconstructed emissions unit.

NR 406.04(1q)(f) (f) Prior to commencing construction, the owner or operator of the source submits to the department a claim of exemption from construction permitting requirements. The exemption claim shall identify the emissions units that are being constructed, modified, replaced, relocated, or reconstructed. The department shall respond to the claim of exemption submittal within 20 business days after receipt of the claim.

NR 406.04(1q)(g) (g) Any newly constructed emissions unit is not subject to an emission limitation or emission standard under section 111 or 112 of the Act (42 USC 7411 or 7412), excluding section 112 (d) (5) or (r) (42 USC 7412 (d) (5) or (r)) and excluding engines certified to meet the emission standards in 40 CFR part 60, subpart IIII or JJJJ for each fuel used. Any modified, replaced, relocated, or reconstructed emissions unit is not subject to any new emission limitation or emission standard or other requirement for the emissions unit under section 111 or 112 of the Act (42 USC 7411 or 7412), excluding section 112 (d) (5) or (r) (42 USC 7412 (d) (5) or (r)) and excluding engines certified to meet the emission standards in 40 CFR part 60, subpart IIII or JJJJ for each fuel used.

NR 406.04 Note Note: The application for an operation permit or operation permit revision required under this section will be evaluated by the department pursuant to the permit approval criteria in ss. 285.63 and 285.64, Stats. Application forms may be obtained from the regional and area offices of the department or from the Wisconsin Department of Natural Resources, Bureau of Air Management, PO Box 7921, Madison WI 53707-7921, Attention: operation permits.

NR 406.04(2) (2) General category of exempt sources. In addition to the specific categories of exempt sources identified in sub. (1), no construction permit is required prior to commencing construction, reconstruction, replacement, relocation or modification of a direct source if all of the following conditions are met:

NR 406.04(2)(a) (a) The construction, reconstruction, replacement, relocation or modification of the source is not prohibited by any permit, plan approval or special order applicable to the source.

NR 406.04(2)(b) (b) The maximum theoretical emissions from the source for sulfur dioxide or carbon monoxide do not exceed 9.0 pounds per hour for each air contaminant.

NR 406.04(2)(c) (c) The maximum theoretical emissions from the source for particulate matter, nitrogen oxides or volatile organic compounds do not exceed 5.7 pounds per hour for each air contaminant.

NR 406.04(2)(cm) (cm) The maximum theoretical emissions from the source for PM10 do not exceed 3.4 pounds per hour.

NR 406.04(2)(cs) (cs) The maximum theoretical emissions from the source for PM2.5 do not exceed 2.2 pounds per hour.

NR 406.04(2)(d) (d) The maximum theoretical emissions from the source for lead do not exceed 0.13 pounds per hour.

NR 406.04(2)(f) (f)

NR 406.04(2)(f)1. 1. The maximum theoretical emissions from the source for any hazardous air contaminant listed in Table A, B or C of s. NR 445.07 are not greater than the emission rate for the air contaminant listed in column (c), (d), (e) or (f) of Table A, B or C of s. NR 445.07 for the respective stack height or the owner or operator of the source meets the compliance demonstration and notification requirements of s. NR 445.08 (7) (b).

NR 406.04 Note Note: Owners and operators of facilities emitting less than 3 tons of volatile organic compounds and 5 tons of particulate matter on an annual basis, or who engage in limited or no manufacturing activities, should refer to s. NR 445.11 prior to determining applicable requirements under this paragraph.

NR 406.04(2)(f)2. 2. The source is not subject to a best available control technology or lowest achievable emission rate requirement in s. NR 445.07 (1) (c), (2), (3) or (4).

NR 406.04(2)(f)3. 3. The source does not combust fuel oil in a compression ignition internal combustion engine subject to a best available control technology requirement in s. NR 445.09 (3) (a).

NR 406.04(2)(f)4. 4. The source does not combust municipal solid waste, as defined in s. NR 500.03 (86), or infectious wastes.

NR 406.04(2)(h) (h) The source is not subject to an emission limitation or emission standard under section 111 or 112 of the Act (42 USC 7411 or 7412), excluding section 112 (d) (5) or (r) (42 USC 7412 (d) (5) or (r)) and excluding engines certified to meet the emission standards in 40 CFR part 60, subpart IIII or JJJJ for each fuel used.

NR 406.04 Note Note: Sections 285.60 (1) (b) 1. and 285.62 (8), Stats., and s. NR 407.04 (1) (b) 3. require that a complete operation permit application or revision to an application be submitted to the department prior to commencing construction or modification of the equipment exempted under this section. A source which already has an operation permit must apply for a revision of that permit under s. NR 407.11, 407.12 or 407.13.

NR 406.04(2m) (2m) Exemptions for sources with general operation and registration operation permits. Notwithstanding the provisions in s. NR 406.04 (1) and (2), no construction permit is required prior to commencing construction, reconstruction, replacement, relocation or modification of a stationary source if all the following criteria are met:

NR 406.04(2m)(a) (a) The source is covered under a general operation permit issued under s. NR 407.10 or a registration operation permit issued under s. NR 407.105.

NR 406.04(2m)(b) (b) The construction, reconstruction, replacement, relocation or modification will not result in the source violating any term or condition of the general operation permit or the registration operation permit.

NR 406.04 Note Note: Some general operation permits issued prior to September 1, 2005 may have required a construction permit even if the change at the source would not violate any term or condition of the permit. Those sources are now exempt from the requirement to obtain a construction permit if the change at the source will not violate any term or condition of the general operation permit.