You must include all coating materials (as defined in § 63.5110 ) used in the affected source when determining compliance with the applicable emission limit in § 63.5120 . To make this determination, you must use at least one of the four compliance options listed in Table 1 of this section. You may apply any of the compliance options to an individual coil coating line, or to multiple lines as a group, or to the entire affected source. You may use different compliance options for different coil coating lines, or at different times on the same line. However, you may not use different compliance options at the same time on the same coil coating line. If you switch between compliance options for any coil coating line or group of lines, you must document this switch as required by § 63.5190(a) , and you must report it in the next semiannual compliance report required in § 63.5180 .
Table 1 to § 63.5170 -Compliance Demonstration Requirements Index
If you choose to demonstrate compliance by: | Then you must demonstrate that: |
1. Use of "as purchased" compliant coatings | a. Each coating material used during the 12-month compliance period does not exceed 0.046 kg HAP per liter solids, as purchased. Paragraph (a) of this section. |
2. Use of "as applied" compliant coatings | a. Each coating material used does not exceed 0.046 kg HAP per liter solids on a rolling 12-month average as applied basis, determined monthly. Paragraphs (b)(1) of this section; or |
b. Average of all coating materials used does not exceed 0.046 kg HAP per liter solids on a rolling 12-month average as applied basis, determined monthly. Paragraph (b)(2) of this section. | |
3. Use of a capture system and control device | Overall organic HAP control efficiency is at least 98 percent on a monthly basis for individual or groups of coil coating lines; or overall organic HAP control efficiency is at least 98 percent during performance tests conducted according to Table 1 to § 63.5170 and operating limits are achieved continuously for individual coil coating lines; or oxidizer outlet HAP concentration is no greater than 20 ppmv and there is 100-percent capture efficiency during performance tests conducted according to Table 1 to § 63.5170 and operating limits are achieved continuously for individual coil coating lines. Paragraph (c) of this section. |
4. Use of a combination of compliant coatings and control devices and maintaining an acceptable equivalent emission rate | Average equivalent emission rate does not exceed 0.046 kg HAP per liter solids on a rolling 12-month average as applied basis, determined monthly. Paragraph (d) of this section. |
Where:
Hsiap = as-purchased, organic HAP to solids ratio of coating material, i, kg organic HAP/liter solids applied.
Chi = organic HAP content of coating material, i, expressed as a weight-fraction, kg/kg.
Di = density of coating material, i, kg/l.
Vsi = volume fraction of solids in coating, i, l/l.
Where:
Hsi yr = average for the 12-month compliance period, as-applied, organic HAP to solids ratio of material, i, kg organic HAP/liter solids applied.
Vi = volume of coating material, i, l.
Di = density of coating material, i, kg/l.
Cahi = monthly average, as-applied, organic HAP content of solids-containing coating material, i, expressed as a weight fraction, kilogram (kg)/kg.
Vj = volume of solvent, j, l.
Dj = density of solvent, j, kg/l.
Chij = organic HAP content of solvent, j, added to coating material, i, expressed as a weight fraction, kg/kg.
Vsi = volume fraction of solids in coating, i, l/l.
y = identifier for months.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
Where:
HS yr = average for the 12-month compliance period, as-applied, organic HAP to solids ratio of all materials applied, kg organic HAP/liter solids applied.
Vi = volume of coating material, i, l.
Di = density of coating material, i, kg/l.
Cahi = monthly average, as-applied, organic HAP content of solids-containing coating material, i, expressed as a weight fraction, kilogram (kg)/kg.
Vj = volume of solvent, j, l.
Dj = density of solvent, j, kg/l.
Chij = organic HAP content of solvent, j, added to coating material, i, expressed as a weight fraction, kg/kg.
Vsi = volume fraction of solids in coating, i, l/l.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
y = identifier for months.
Where:
Rv = organic volatile matter collection and recovery efficiency, percent.
Mkvr = mass of volatile matter recovered in a month by solvent recovery device, k, kg.
Mi = mass of coating material, i, applied in a month, kg.
Cvi = volatile matter content of coating material, i, expressed as a weight fraction, kg/kg.
Mj = mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material (excluding H2O), j, applied in a month, kg.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
s = number of solvent recovery devices used to comply with the standard of § 63.5120 of this subpart, in the facility.
Where:
He = total monthly organic HAP emitted, kg.
Rv = organic volatile matter collection and recovery efficiency, percent.
Chi = organic HAP content of coating material, i, expressed as a weight-fraction, kg/kg.
Mi = mass of coating material, i, applied in a month, kg.
Chij = organic HAP content of solvent, j, added to coating material, i, expressed as a weight fraction, kg/kg.
Mij = mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, added to solids-containing coating material, i, in a month, kg.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
Where:
LANNUAL = mass organic HAP emitted per volume of solids applied for the 12-month compliance period, kg/liter.
He = total monthly organic HAP emitted, kg.
Csi = solids content of coating material, i, expressed as liter of solids/kg of material.
Mi = mass of coating material, i, applied in a month, kg.
y = identifier for months.
p = number of different coating materials applied in a month.
Where:
R = overall organic HAP control efficiency, percent.
DREk = organic volatile matter destruction or removal efficiency of control device, k, percent.
CEA = organic volatile matter capture efficiency of the capture system for work station, A, percent.
MAi = mass of coating material, i, applied on work station, A, in a month, kg.
Cvi = volatile matter content of coating material, i, expressed as a weight fraction, kg/kg.
MAj = mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material (including H2O), j, applied on work station, A, in a month, kg.
Mi = mass of coating material, i, applied in a month, kg.
Mj = mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material (excluding H2O), j, applied in a month, kg.
w = number of always-controlled work stations in the facility.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
Where:
He = total monthly organic HAP emitted, kg.
DREk = organic volatile matter destruction or removal efficiency of control device, k, percent.
CEA = organic volatile matter capture efficiency of the capture system for work station, A, percent.
Chi = organic HAP content of coating material, i, expressed as a weight-fraction, kg/kg.
MAi = mass of coating material, i, applied on work station, A, in a month, kg.
Chij = organic HAP content of solvent, j, added to coating material, i, expressed as a weight fraction, kg/kg.
MAij = mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, added to solids-containing coating material, i, applied on work station, A, in a month, kg.
w = number of always-controlled work stations in the facility.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
Where:
Hm = facility total monthly organic HAP applied on uncontrolled coil coating stations, kg.
Chi = organic HAP content of coating material, i, expressed as a weight-fraction, kg/kg.
MAi = mass of coating material, i, applied on work station, A, in a month, kg.
Chij = organic HAP content of solvent, j, added to coating material, i, expressed as a weight fraction, kg/kg.
MAij = mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, added to solids-containing coating material, i, applied on work station, A, in a month, kg.
x = number of uncontrolled work stations in the facility.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
Where:
He = total monthly organic HAP emitted, kg.
Mci = sum of the mass of solids-containing coating material, i, applied on intermittently-controllable work stations operating in controlled mode and the mass of solids-containing coating material, i, applied on always-controlled work stations, in a month, kg.
Chi = organic HAP content of coating material, i, expressed as a weight-fraction, kg/kg.
Mcj = sum of the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on intermittently-controllable work stations operating in controlled mode and the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on always-controlled work stations in a month, kg.
Chj = organic HAP content of solvent, j, expressed as a weight fraction, kg/kg.
Mkvr = mass of volatile matter recovered in a month by solvent recovery device, k, kg.
Cvi = volatile matter content of coating material, i, expressed as a weight fraction, kg/kg.
MBi = sum of the mass of solids-containing coating material, i, applied on intermittently-controllable work stations operating in bypass mode and the mass of solids-containing coating material, i, applied on never-controlled work stations, in a month, kg.
MBj = sum of the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on intermittently-controllable work stations operating in bypass mode and the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on never-controlled work stations, in a month, kg.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
s = number of solvent recovery devices used to comply with the standard of § 63.5120 of this subpart, in the facility.
Where:
He = total monthly organic HAP emitted, kg.
Mci = sum of the mass of solids-containing coating material, i, applied on intermittently-controllable work stations operating in controlled mode and the mass of solids-containing coating material, i, applied on always-controlled work stations, in a month, kg.
Chi = organic HAP content of coating material, i, expressed as a weight-fraction, kg/kg.
Mcj = sum of the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on intermittently-controllable work stations operating in controlled mode and the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on always-controlled work stations in a month, kg.
Chj = organic HAP content of solvent, j, expressed as a weight fraction, kg/kg.
DREk = organic volatile matter destruction or removal efficiency of control device, k, percent.
CEA = organic volatile matter capture efficiency of the capture system for work station, A, percent.
MBi = sum of the mass of solids-containing coating material, i, applied on intermittently-controllable work stations operating in bypass mode and the mass of solids-containing coating material, i, applied on never-controlled work stations, in a month, kg.
MBj = sum of the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on intermittently-controllable work stations operating in bypass mode and the mass of solvent, thinner, reducer, diluent, or other non-solids-containing coating material, j, applied on never-controlled work stations, in a month, kg.
wi = number of intermittently-controllable work stations in the facility.
p = number of different coating materials applied in a month.
q = number of different solvents, thinners, reducers, diluents, or other non-solids-containing coating materials applied in a month.
40 C.F.R. §63.5170