NR 405.07(8)(a)8. 8. Beryllium — 0.0010 µg/m3, 24-hour average.

NR 405.07(8)(a)9. 9. Fluorides — 0.25 mg/m3, 24-hour average.

NR 405.07(8)(a)10. 10. Vinyl chloride — 15 µg/m3, 24-hour average.

NR 405.07(8)(a)11. 11. Total reduced sulfur — 10 µg/m3, 1-hour average.

NR 405.07(8)(a)12. 12. Hydrogen sulfide — 0.20 µg/m3, 1-hour average.

NR 405.07(8)(a)13. 13. Reduced sulfur compounds — 10 µg/m3, 1-hour average.

NR 405.07(8)(b) (b) The concentrations of the air contaminant in the area that the source or modification would affect are less than the concentrations listed in par. (a).

NR 405.07(8)(c) (c) The air contaminant is not listed in par. (a).

NR 405.07 Note Note: The advance notice requirement for relocation of a portable source in the federal regulations (not less than 10 days advance notice) has been changed to not less than 30 days in sub. (4) (b).

NR 405.07(9) (9) 

NR 405.07(9)(a) (a) Beginning January 2, 2011, emissions of greenhouse gases at a stationary source shall only be subject to regulation under the Act if the stationary source is any of the following:

NR 405.07(9)(a)1m. 1m. A new major stationary source for a regulated NSR contaminant other than GHG, which will emit or will have the potential to emit 75,000 tpy or more of GHG on a carbon dioxide equivalent basis.

NR 405.07(9)(a)2m. 2m. An existing major stationary source for a regulated NSR contaminant other than GHG, which will have an emissions increase of a regulated NSR contaminant other than GHG, and an emissions increase of 75,000 tpy or more of GHG on a carbon dioxide equivalent basis.

NR 405.07 Note Note: The department intends to regulate GHG consistent with the 40 CFR 51.166 (June 3, 2010). In the event of litigation or congressional action which impacts the federal regulations, the department will commence rulemaking to remain consistent with the resulting federal regulations.

NR 405.07(9)(b) (b) For purposes of this subsection, emissions of GHG on a carbon dioxide equivalent basis shall be determined by multiplying the mass amount of emissions, in tons per year, for each of the constituent gases in the pollutant GHG by the associated global warming potential for the gas in Table B, and then summing the products obtained.

- See PDF for table

NR 405.07 Note 1 The Chemical Abstract Service or CAS numbers refer to the unique chemical abstracts service registry number assigned to a specific chemical, isomer or mixture of chemicals or isomers and recorded in the CAS chemical registry system by the Chemical Abstracts Service, PO Box 3012, Columbus OH 42310, phone: [phone].

NR 405.07 Note Note: The GWPs in Table B are based upon the GWPs codified by the EPA at 40 CFR part 98, Subpart A, Table A-1, as of October 22, 2010.

NR 405.07 History History: Cr. Register, January, 1987, No. 373, eff. 2-1-87; corrections in (6) to (8) made under s. 13.93 (2m) (b) 7., Stats., Register, April, 1988, No. 388; am. (8) (a) 3., Register, April, 1995, No. 472, eff. 5-1-95; am. (1), (4) (intro.), (5) and (6), Register, December, 1995, No. 480, eff. 1-1-96; am. (3), (5), (8) (intro.), (a) 6., 8, 12, renum. (4) (b) and (c) to be (4) (a) and (b) and am. (4) (a) 27., (b) (intro.), Register, December, 1996, No. 492, eff. 1-1-97; am. (8) (a) 9., Register, October, 1999, No. 526, eff. 11-1-99; CR 07-104: am. (4) (a) 20. Register July 2008 No. 631, eff. 8-1-08; CR 10-050: cr. (8) (a) 3m. Register November 2010 No. 659, eff. 12-1-10; EmR1046: emerg. cr. (9), eff. 12-15-10; CR 10-144: cr. (9) Register August 2011 No. 668, eff. 9-1-11; 2015 Wis. Act 33: consol. (9) (a) (intro.) and (9) (a) 1. and renum. to (9) (a) (intro.) and am., renum. (9) (a) 1. a. and b. to (9) (a) 1m. and 2m., r. (9) (a) 2. Register July 2015 No. 715, eff. 8-1-15; CR 15-077: am. (8) (a) 3m. Register July 2016 No. 727, eff. 8-1-16.

NR 405.08 NR 405.08 Control technology review.

NR 405.08(1) (1) A major stationary source or major modification shall meet each applicable emissions limitation under chs. NR 400 to 499 and under sections 111 and 112 of the Act (42 USC 7411 and 7412).

NR 405.08(2) (2) A new major stationary source shall apply best available control technology for each air contaminant that it would have the potential to emit in significant amounts.

NR 405.08(3) (3) A major modification shall apply best available control technology for each air contaminant for which it would be a significant net emissions increase at the source. This requirement applies to each proposed emissions unit at which a net emissions increase in the air contaminant would occur as a result of a physical change or change in the method of operation in the unit.

NR 405.08(4) (4) For phased construction projects, the determination of best available control technology shall be reviewed and modified as appropriate at the latest reasonable time which occurs no later than 18 months prior to commencement of construction of each independent phase of the project. At such time, the owner or operator of the applicable stationary source may be required to demonstrate the adequacy of any previous determination of best available control technology for the source.

NR 405.08 History History: Cr. Register, January, 1987, No. 373, eff. 2-1-87; am. (1), Register, April, 1995, No. 472, eff. 5-1-95; am. (3), Register, December, 1995, No. 480, eff. 1-1-96.

NR 405.09 NR 405.09 Source impact analysis. The owner or operator of the proposed major source or major modification shall demonstrate that allowable emission increases from the proposed major source or major modification, in conjunction with all other applicable emissions increases or reduction, including secondary emissions, would not cause or contribute to air pollution in violation of either of the following:

NR 405.09(1) (1) Any national ambient air quality standard in any air quality control region.

NR 405.09(2) (2) Any applicable maximum allowable increase over the baseline concentration in any area.

NR 405.09 History History: Cr. Register, January, 1987, No. 373, eff. 2-1-87; am. (intro.), Register, December, 1996, No. 492, eff. 1-1-97.