Chapter NR 465

HUNC is the total mass of organic HAP in the coatings, thinners and other additives, and cleaning materials used during all deviations specified in sub. (4)(c) and (d) that occurred during the month in the controlled coating operation, kg (lb)

Volh is the total volume of coating, thinner or other additives, or cleaning material, h, used in the controlled coating operation during deviations, liters (gallons)

Dh is the density of coating, thinner or other additives, or cleaning material, h, kg per liter (lb per gallon)

Wh is the mass fraction of organic HAP in coating, thinner or other additives, or cleaning material, h, 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).

q is the number of different coatings, thinners and other additives, and cleaning materials used

NR 465.38(2)(j) (j) Calculate the organic HAP emission reduction for each controlled coating operation using liquid-liquid material balances. For each controlled coating operation using a solvent recovery system for which you conduct liquid-liquid material balances, calculate the organic HAP emission reduction by applying the volatile organic matter collection and recovery efficiency to the mass of organic HAP contained in the coatings, thinners and other additives and cleaning materials that are used in the coating operation or operations controlled by the solvent recovery system during each month. Perform a liquid-liquid material balance for each month as specified in subds. 1. to 6. Calculate the mass of organic HAP emission reduction by the solvent recovery system as specified in subd. 7.

NR 465.38(2)(j)1. 1. For each solvent recovery system, install, calibrate, maintain and operate according to the manufacturer's specifications, a device that indicates the cumulative amount of volatile organic matter recovered by the solvent recovery system each month. The device shall be initially certified by the manufacturer to be accurate to within 2.0% of the mass of volatile organic matter recovered.

NR 465.38(2)(j)2. 2. For each solvent recovery system, determine the mass of volatile organic matter recovered for the month, based on measurement with the device required in subd. 1.

NR 465.38(2)(j)3. 3. Determine the mass fraction of volatile organic matter for each coating, thinner and other additive and cleaning material used in the coating operation or operations controlled by the solvent recovery system during the month, kg (lb) of volatile organic matter per kg (lb) of coating. You may determine the volatile organic matter mass fraction using Method 24 in 40 CFR part 60, Appendix A, incorporated by reference in s. NR 484.04 (13), or an EPA approved alternative method, or you may use information provided by the manufacturer or supplier of the coating. In the event of any inconsistency between information provided by the manufacturer or supplier and the results of Method 24 or an approved alternative method, the test method results will take precedence unless, after consultation, you demonstrate to the satisfaction of the department that the formulation data are correct.

NR 465.38(2)(j)4. 4. Determine the density of each coating, thinner or other additive and cleaning material used in the coating operation or operations controlled by the solvent recovery system during the month, kg per liter (lb per gallon), according to s. NR 465.37 (2) (c).

NR 465.38(2)(j)5. 5. Measure the volume of each coating, thinner and other additive and cleaning material used in the coating operation or operations controlled by the solvent recovery system during the month, liters (gallons).

NR 465.38(2)(j)6. 6. Each month, calculate the solvent recovery system's volatile organic matter collection and recovery efficiency using the following equation:

- See PDF for diagram

(Equation 2)

where:

RV is the volatile organic matter collection and recovery efficiency of the solvent recovery system during the month, percent

MVR is the mass of volatile organic matter recovered by the solvent recovery system during the month, kg (lb)

Voli is the volume of coating, i, used in the coating operation controlled by the solvent recovery system during the month, liters (gallons)

Di is the density of coating, i, kg per liter (lb per gallon)

WVc,i is the mass fraction of volatile organic matter for coating i, kg (lb) of volatile organic matter 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).

Volj is the volume of thinner or other additive, j, used in the coating operation controlled by the solvent recovery system during the month, liters (gallons)

Dj is the density of thinner or other additive, j, kg per liter (lb per gallon)

WVt,j is the mass fraction of volatile organic matter for thinner or other additive, j, kg (lb) of volatile organic matter 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).

Volk is the volume of cleaning material, k, used in the coating operation controlled by the solvent recovery system during the month, liters (gallons)

Dk is the density of cleaning material, k, kg per liter (lb per gallon)

WVs,k is the mass fraction of volatile organic matter for cleaning material, k, kg (lb) of volatile organic matter per kg (lb) of cleaning material

m is the number of different coatings used in the coating operation controlled by the solvent recovery system during the month

n is the number of different thinners and other additives used in the coating operation controlled by the solvent recovery system during the month

p is the number of different cleaning materials used in the coating operation controlled by the solvent recovery system during the month

NR 465.38(2)(j)7. 7. Calculate the mass of organic HAP emission reduction for the coating operation or operations controlled by the solvent recovery system during the month, using the following equations:

- See PDF for diagram (Equation 3)

where:

HCSR is the mass of organic HAP emission reduction for the coating operation controlled by the solvent recovery system using a liquid-liquid material balance during the month, kg (lb)

ACSR is the total mass of organic HAP in the coatings used in the coating operation controlled by the solvent recovery system, kg (lb), calculated using Equation 3A of this subsection

BCSR is the total mass of organic HAP in the thinners and other additives used in the coating operation controlled by the solvent recovery system, kg (lb), calculated using Equation 3B of this subsection

CCSR is the total mass of organic HAP in the cleaning materials used in the coating operation controlled by the solvent recovery system, kg (lb), calculated using Equation 3C of this subsection

RV is the volatile organic matter collection and recovery efficiency of the solvent recovery system, percent, from Equation 2 of subd. 6.

- See PDF for diagram (Equation 3A)

where:

ACSR is the total mass of organic HAP in the coatings used in the coating operation controlled by the solvent recovery system during the month, kg (lb)

Volc,i is the total volume of coating, i, used during the month in the coating operation controlled by the solvent recovery system, liters (gallons)

Dc,i is the density of coating, i, kg per liter (lb per gallon)

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

- See PDF for diagram

(Equation 3B)

where:

BCSR is the total mass of organic HAP in the thinners and other additives used in the coating operation controlled by the solvent recovery system during the month, kg (lb)

Volt,j is the total volume of thinner or other additive, j, used during the month in the coating operation controlled by the solvent recovery system, 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

- See PDF for diagram (Equation 3C)

where:

CCSR is the total mass of organic HAP in the cleaning materials used in the coating operation controlled by the solvent recovery system during the month, kg (lb)

Vols,k is the total volume of cleaning material, k, used during the month in the coating operation controlled by the solvent recovery system, 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 cleaning material

p is the number of different cleaning materials used

NR 465.38(2)(k) (k) Calculate the total mass of coating solids used. Determine the total mass of coating solids used which is the combined mass of coating solids for all the coatings used during each month in the coating operation or group of coating operations for which you use the emission rate with add-on controls option, using Equation 2 of s. NR 465.37 (2).

NR 465.38(2)(L) (L) Calculate the mass of organic HAP emissions for each month. Determine the mass of organic HAP emissions during each month, using the following equation:

- See PDF for diagram (Equation 4)

where:

HHAP is the total mass of organic HAP emissions for the month, kg (lb)

He is the total mass of organic HAP emissions before add-on controls from all the coatings, thinners and other additives, and cleaning materials used during the month, kg (lb), determined according to par. (f)

Hc,i is the total mass of organic HAP emission reduction for controlled coating operation, i, not using a liquid-liquid material balance, during the month, kg (lb), from Equation 1 of this subsection

HCSR,j is the total mass of organic HAP emission reduction for coating operation j, controlled by a solvent recovery system using a liquid-liquid material balance, during the month, kg (lb), from Equation 3 of this subsection

q is the number of controlled coating operations not controlled by a solvent recovery system using a liquid-liquid material balance

r is the number of coating operations controlled by a solvent recovery system using a liquid-liquid material balance

NR 465.38(2)(m) (m) Calculate the organic HAP emission rate for the compliance period. Determine the organic HAP emission rate for the compliance period using the following equation:

- See PDF for diagram

(Equation 5)

where:

Hannual is the organic HAP emission rate for the compliance period, kg (lb) of organic HAP emitted per kg (lb) of coating solids used

HHAP,y is the organic HAP emissions for month, y, kg (lb), determined according to Equation 4 of this subsection

Mst,y is the total mass of coating solids used during month, y, kg (lb), from Equation 2 of s. NR 465.37 (2)

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.

NR 465.38(2)(n) (n) Compliance demonstration. The organic HAP emission rate for the initial compliance period, calculated using Equation 5 of this subsection, shall be less than or equal to the applicable emission limit for each sub-category in s. NR 465.33 (1) or the predominant activity or facility-specific emission limit allowed in s. NR 465.33 (1) (c). You shall keep all records as required by s. NR 465.35 (3) and (4). As part of the notification of compliance status required by s. NR 465.35 (1), you shall identify the coating operations for which you used the emission rate with add-on controls option and submit a statement that the coating operations were in compliance with the emission limits in s. NR 465.33 (1) during the initial compliance period because the organic HAP emission rate was less than or equal to the applicable emission limit in s. NR 465.33 (1), and you achieved the operating limits required by s. NR 465.33 (3) and the work practice standards required by s. NR 465.33 (4).

NR 465.38(4) (4) How do i demonstrate continuous compliance with the emission limits?

NR 465.38(4)(a) (a) To demonstrate continuous compliance with the applicable emission limit in s. NR 465.33 (1), the organic HAP emission rate for each compliance period, determined according to the procedures in sub. (2), shall be equal to or less than the applicable emission limit in s. NR 465.33 (1). A compliance period consists of 12 months. Each month after the end of the initial compliance period described in sub. (1) is the end of a compliance period consisting of that month and the preceding 11 months. You shall perform the calculations in sub. (2) on a monthly basis using data from the previous 12 months of operation. If you are complying with a facility-specific emission limit under s. NR 465.33 (1) (c) 2., you shall also perform the calculation using Equation 1 in s. NR 465.33 (1) (c) 2. on a monthly basis using the data from the previous 12 months of operation.

NR 465.38(4)(b) (b) If the organic HAP emission rate for any 12-month compliance period exceeded the applicable emission limit in s. NR 465.33 (1), this is a deviation from the emission limit for that compliance period that shall be reported as specified in s. NR 465.35 (1) (c) 6. and (2) (a) 7.

NR 465.38(4)(c) (c) You shall demonstrate continuous compliance with each operating limit required by s. NR 465.33 (3) that applies to you, as specified in Table 1 of this subchapter, when the coating line is in operation. If an operating parameter is out of the allowed range specified in Table 1, you shall do both of the following:

NR 465.38(4)(c)1. 1. Report as a deviation from the operating limit as specified in s. NR 465.35 (1) (c) 6. and (2) (a) 7.

NR 465.38(4)(c)2. 2. Assume that the emission capture system and add-on control device were achieving zero efficiency during the time period of the deviation, unless you have other data indicating the actual efficiency of the emission capture system and add-on control device and the use of these data is approved by the department.

NR 465.38(4)(d) (d) You shall meet the requirements for bypass lines in sub. (9) (b) for controlled coating operations for which you do not conduct liquid-liquid material balances. If any bypass line is opened and emissions are diverted to the atmosphere when the coating operation is running, this is a deviation that shall be reported as specified in s. NR 465.35 (1) (c) 6. and (2) (a) 7. For the purposes of completing the compliance calculations specified in sub. (2) (h), you shall treat the materials used during a deviation on a controlled coating operation as if they were used on an uncontrolled coating operation for the time period of the deviation as indicated in Equation 1 of sub. (2).

NR 465.38(4)(e) (e) You shall demonstrate continuous compliance with the work practice standards in s. NR 465.33 (4). If you did not develop a work practice plan, or you did not implement the plan, or you did not keep the records required by s. NR 465.35 (3) (i) 8., this is a deviation from the work practice standards that shall be reported as specified in s. NR 465.35 (1) (c) 6. and (2) (a) 7.

NR 465.38(4)(f) (f) As part of each semiannual compliance report required in s. NR 465.35 (2), you shall identify the coating operations for which you used the emission rate with add-on controls option. If there were no deviations from the emission limits specified in s. NR 465.33 (1), you shall submit a statement that you were in compliance with the emission limits during the reporting period because the organic HAP emission rate for each compliance period was less than or equal to the applicable emission limit in s. NR 465.33 (1), and you achieved the operating limits required by s. NR 465.33 (3) and the work practice standards required by s. NR 465.33 (4) during each compliance period.

NR 465.38(4)(g) (g) During periods of startup, shutdown or malfunction of the emission capture system, add-on control device or coating operation that may affect emission capture or control device efficiency, you shall operate in accordance with the startup, shutdown and malfunction plan required by s. NR 465.34 (1) (c).