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 to demonstrate compliance with an organic HAP emission limit. You must use either the compliant material option or the emission rate with add-on controls option for any coating operation in the affected source for which you do not use this option. To demonstrate initial compliance using the emission rate without add-on controls option, the coating operation or group of coating operations must comply with the applicable emission limit in § 63.4890 , but is not required to meet the operating limits or work practice standards in §§ 63.4892 and 63.4893 , respectively. You must meet all the requirements of this section to demonstrate initial compliance with the applicable emission limit in § 63.4890 for the coating operation or group of coating operations. When calculating the organic HAP emission rate according to this section, do not include any coatings, thinners, or cleaning materials used on coating operations for which you use the compliant material option or the emission rate with add-on controls option. You do not need to include organic HAP in coatings, thinners, or cleaning materials that have been reclaimed onsite and reused in the coating operation for which you use the emission rate without add-on controls option.
Where:
He = Total mass of organic HAP emissions during the compliance period, kg.
A = Total mass of organic HAP in the coatings used during the compliance period, kg, as calculated in Equation 1A of this section.
B = Total mass of organic HAP in the thinners used during the compliance period, kg, as calculated in Equation 1B of this section.
C = Total mass of organic HAP in the cleaning materials used during the compliance period, kg, as calculated in Equation 1C of this section.
Rw = Total mass of organic HAP in waste materials sent or designated for shipment to a hazardous waste TSDF for treatment or disposal during the compliance period, kg, determined according to paragraph (e)(4) of this section. The mass of any waste material reused during the same compliance period may not be included in Rw. (You may assign a value of zero to Rw if you do not wish to use this allowance.)
Where:
A = Total mass of organic HAP in the coatings used during the compliance period, kg.
Volc,i = Total volume of coating, i, used during the compliance period, liters.
Dc,i = Density of coating, i, kg coating per liter coating.
Wc,i = Mass fraction of organic HAP in coating, i, kg organic HAP per kg coating.
m = Number of different coatings used during the compliance period.
Where:
B = Total mass of organic HAP in the thinners used during the compliance period, kg.
Volt,j = Total volume of thinner, j, used during the compliance period, liters.
Dt,j = Density of thinner, j, kg per liter.
Wt,j = Mass fraction of organic HAP in thinner, j, kg organic HAP per kg thinner.
n = Number of different thinners used during the compliance period.
Where:
C = Total mass of organic HAP in the cleaning materials used during the compliance period, kg.
Vols,k = Total volume of cleaning material, k, used during the compliance period, liters.
Ds,k = Density of cleaning material, k, kg per liter.
Ws,k = Mass fraction of organic HAP in cleaning material, k, kg organic HAP per kg material.
p = Number of different cleaning materials used during the compliance period.
Where:
Vst = Total volume of coating solids used during the compliance period, liters.
Volc,i = Total volume of coating, i, used during the compliance period, liters.
Vs,i = Volume fraction of coating solids for coating, i, liter solids per liter coating, determined according to § 63.4941(b) .
m = Number of coatings used during the compliance period.
Where:
Havg = Organic HAP emission rate for the compliance period, kg organic HAP per liter coating solids.
He = Total mass of organic HAP emissions from all materials used during the compliance period, kg, as calculated by Equation 1 of this section.
Vst = Total volume of coating solids used during the compliance period, liters, as calculated by Equation 2 of this section.
40 C.F.R. §63.4951