Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 465 - National emission standards for hazardous air pollutants for general surface coating processes
Subchapter IV - Surface Coating of Plastic Parts and Products
Section NR 465.37 - Compliance requirements for the emission rate without add-on controls option
Current through August 26, 2024
(1) BY WHAT DATE MUST I CONDUCT THE INITIAL COMPLIANCE DEMONSTRATION? You shall complete the initial compliance demonstration for the initial compliance period according to the requirements of sub. (2). The initial compliance period begins on the applicable compliance date specified in s. NR 465.31(4) and ends on the last day of the 12th month following the compliance date. If the compliance date occurs on any day other than the first day of a month, then the initial compliance period extends through the end of that month plus the next 12 months. You shall determine the mass of organic HAP emissions and mass of coating solids used each month and then calculate an organic HAP emission rate at the end of the initial compliance period. The initial compliance demonstration includes the calculations according to sub. (2) and supporting documentation showing that during the initial compliance period the organic HAP emission rate was equal to or less than the applicable emission limit in s. NR 465.33(1).
(2) HOW DO I DEMONSTRATE INITIAL COMPLIANCE WITH THE EMISSION LIMITS? You may use the emission rate without add-on controls option for any individual coating operation, for any group of coating operations in the affected source, or for all the coating operations in the affected source. You shall use either the compliant material option in s. NR 465.33(2) (a) or the emission rate with add-on controls option in s. NR 465.33(2) (c) for any coating operation in the affected source for which you do not use the emission rate without add-on controls option. To demonstrate initial compliance using the emission rate without add-on controls option, the coating operation or group of coating operations shall meet the applicable emission limit in s. NR 465.33(1), but is not required to meet the operating limits or work practice standards in s. NR 465.33(3) and (4). You shall conduct a separate initial compliance demonstration for each general use, TPO, automotive lamp and assembled on-road vehicle coating operation, unless you are demonstrating compliance with a predominant activity or facility-specific emission limit as provided in s. NR 465.33(1) (c). If you are demonstrating compliance with a predominant activity or facility-specific emission limit, you shall demonstrate that all coating operations included in the predominant activity determination or calculation of the facility-specific emission limit comply with that limit. You shall meet all the requirements of this subsection. When calculating the organic HAP emission rate according to this subsection, do not include any coatings, thinners or other additives, or cleaning materials used on coating operations for which you use the compliant material option in s. NR 465.33(2) (a) or the emission rate with add-on controls option in s. NR 465.33(2) (c). You do not need to redetermine the mass of organic HAP in coatings, thinners or other additives, or cleaning materials that have been reclaimed on-site, or reclaimed off-site if you have documentation showing that you received back the exact same materials that were sent off-site, and reused in the coating operation or operations for which you use the emission rate without add-on controls option. If you use coatings, thinners or other additives, or cleaning materials that have been reclaimed on-site, the amount of each used in a month may be reduced by the amount of each that is reclaimed. That is, the amount used may be calculated as the amount consumed to account for materials that are reclaimed.
He = A + B + C - Rw
(Equation 1)
where:
He is the total mass of organic HAP emissions during the month, kg (lb)
A is the total mass of organic HAP in the coatings used during the month, kg (lb), as calculated in Equation 1A of this subsection
B is the total mass of organic HAP in the thinners and other additives used during the month, kg (lb), as calculated in Equation 1B of this subsection
C is the total mass of organic HAP in the cleaning materials used during the month, kg (lb), as calculated in Equation 1C of this subsection
Rw is the total mass of organic HAP in waste materials sent or designated for shipment to a hazardous waste TSDF for treatment or disposal during the month, kg (lb), determined according to subd. 2. You may assign a value of zero to Rw if you do not wish to use this allowance.
where:
A is the total mass of organic HAP in the coatings used during the month, kg (lb)
Volc,i is the total volume of coating, i, used during the month, liters (gallons)
Dc,i is the density of coating, i, kg (lb) of coating per liter (gallon) of coating
Wc,i is the mass fraction of organic HAP in coating, i, kg (lb) of organic HAP per kg (lb) of coating. For reactive adhesives, use the mass fraction of organic HAP that is emitted as determined using the method in 40 CFR part 63, Subpart PPPP, Appendix A, incorporated by reference in s. NR 484.04(24r).
m is the number of different coatings used during the month
where:
B is the total mass of organic HAP in the thinners and other additives used during the month, kg (lb)
Volt,j is the total volume of thinner or other additive, j, used during the month, liters (gallons)
Dt,j is the density of thinner or other additive, j, kg per liter (lb per gallon)
Wt,j is the mass fraction of organic HAP in thinner or other additive, j, kg (lb) of organic HAP per kg (lb) of thinner or other additive. For reactive adhesives, use the mass fraction of organic HAP that is emitted as determined using the method in 40 CFR part 63, Subpart PPPP, Appendix A, incorporated by reference in s. NR 484.04(24r).
n = is the number of different thinners and other additives used during the month
where:
C is the total mass of organic HAP in the cleaning materials used during the month, kg (lb)
Vols,k is the total volume of cleaning material, k, used during the month, liters (gallons)
Ds,k is the density of cleaning material, k, kg per liter (lb per gallon)
Ws,k is the mass fraction of organic HAP in cleaning material, k, kg (lb) of organic HAP per kg (lb) of material
p is the number of different cleaning materials used during the month
where:
Mst is the total mass of coating solids used during the month, kg (lb)
Volc,i is the total volume of coating, i, used during the month, liters (gallons)
Dc,i is the density of coating, i, kg per liter (lb per gallon) of coating, determined according to par. (2)(c)
Ms,i is the mass fraction of coating solids for coating, i, kg (lb) of solids per kg (lb) of coating, determined according to s. NR 465.36(2) (b)
m is the number of coatings used during the month
where:
Hyr is the average organic HAP emission rate for the compliance period, kg (lb) of organic HAP emitted per kg (lb) of coating solids used
He is the total mass of organic HAP emissions from all materials used during month y, kg (lb), as calculated by Equation 1 of this subsection
Mst is the total mass of coating solids used during month y, kg (lb), as calculated by Equation 2 of this subsection
y is the number of the month in the compliance period
n is the number of full or partial months in the compliance period. For the initial compliance period, n equals 12 if the compliance date falls on the first day of a month; otherwise n equals 13. For all following compliance periods, n equals 12.
(3) HOW DO I DEMONSTRATE CONTINUOUS COMPLIANCE WITH THE EMISSION LIMITS?
