Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 469 - Emission standards for hazardous air pollutants for halogenated solvent cleaning operations
Section NR 469.085 - Facility-wide standards

Universal Citation: WI Admin Code ยง NR 469.085

Current through August 26, 2024

(1) Each owner or operator of an affected facility shall comply with the requirements specified in this section. For purposes of this section, "affected facility" means all solvent cleaning machines, except solvent cleaning machines used in the manufacture and maintenance of aerospace products, solvent cleaning machines used in the manufacture of narrow tubing, and continuous web cleaning machines, located at a major source that are subject to the facility-wide limits in sub. (2) (b), and for area sources, "affected facility" means all solvent cleaning machines, except cold batch cleaning machines, located at an area source that are subject to the facility-wide limits in sub. (2) (b).

(2)

(a) Each owner or operator of an affected facility shall maintain a log of solvent additions and deletions for each solvent cleaning machine.

(b) Each owner or operator of an affected facility shall ensure that the total emissions of perchloroethylene (PCE), trichloroethylene (TCE) and methylene chloride (MC) used at the affected facility are equal to or less than the applicable facility-wide 12-month rolling total emission limit presented in Table 8 as determined using the procedures in sub. (3). Equation 9, where the facility emissions of PCE and TCE are weighted according to their carcinogenic potency relative to that of MC, shall be used for multiple solvents.

WE = (PCE * A)+(TCE * B) + MC (Equation 9)

where:

WE is the weighted 12-month rolling total emissions in kg (lbs)

PCE is the 12-month rolling total PCE emissions from all solvent cleaning machines at the facility in kg (lbs)

TCE is the 12-month rolling total TCE emissions from all solvent cleaning machines at the facility in kg (lbs)

MC is the 12-month rolling total MC emissions from all solvent cleaning machines at the facility in kg (lbs)

A is the carcinogenic potency of PCE relative to the carcinogenic potency of MC, and is equal to 12.5

B is the carcinogenic potency of TCE relative to the carcinogenic potency of MC, and is equal to 4.25

Table 8. Facility-wide Emission Limits for Facilities With Solvent Cleaning Machines

Solvents emitted

Facility-wide annual emission limits in kg-for general population degreasing machines

Facility-wide annual emission limit in kg for military depot maintenance facilities

PCE onlya

4,800

8,000

TCE only

14,100

23,500

MC only

60,000

100,000

Multiple solvents-Calculate the MC-weighted emissions using equation 9

60,000

100,000

a PCE emission limit calculated using the unit risk estimate (URE) for PCE calculated by the California EPA Office of Environmental Health Hazard Assessment and listed in their Toxicity Criteria Database, which is accessible at www.oehha.ca.gov/risk/ChemicalDB/start.asp.

(3) Each owner or operator of an affected facility shall, on the first operating day of every month, demonstrate compliance with the applicable facility-wide emission limit on a 12-month rolling total basis using the procedures in pars. (a) to (e). For purposes of this subsection, "each solvent cleaning machine" means each solvent cleaning machine that is part of an affected facility regulated by this section.

(a) Each owner or operator of an affected facility shall, on the first operating day of every month, ensure that each solvent cleaning machine system contains only clean liquid solvent. This includes fresh unused solvent, recycled solvent and used solvent that has been cleaned of soiled materials. A fill line shall be indicated during the first month the measurements are made. The solvent level within the machine shall be returned to the same fill-line each month, immediately prior to calculating monthly emissions as specified in pars. (b) and (c). The solvent cleaning machine does not have to be emptied and filled with fresh unused solvent prior to the calculations.

(b) Each owner or operator of an affected facility shall, on the first operating day of the month, using the records of all solvent additions and deletions for the previous month, determine solvent emissions (Eunit) from each solvent cleaning machine using equation 10:

E unit = SA i - LSR i - SSR i (Equation 10)

where:

Eunit is the total halogenated HAP solvent emissions from the solvent cleaning machine during the most recent month i, (kilograms of solvent per month)

SAi is the total amount of halogenated HAP liquid solvent added to the solvent cleaning machine during the most recent month i, (kilograms of solvent per month)

LSRi is the total amount of halogenated HAP liquid solvent removed from the solvent cleaning machine during the most recent month i, (kilograms of solvent per month)

SSRi is the total amount of halogenated HAP solvent removed from the solvent cleaning machine in solid waste, obtained as described in par. (c), during the most recent month i, (kilograms of solvent per month)

(c) Each owner or operator of an affected facility shall, on the first operating day of the month, determine SSRi using the method specified in subds. 1. and 2.
1. From tests conducted using EPA reference method 25d, incorporated by reference in s. NR 484.04(25).

2. By engineering calculations included in the compliance report.

(d) Each owner or operator of an affected facility shall, on the first operating day of the month, after 12 months of emissions data are available, determine the 12-month rolling total emissions, ETunit, for the 12-month period ending with the most recent month using equation 11:

See PDF for diagram

where:

ETunit is the total halogenated HAP solvent emissions over the preceding 12 months, (kilograms of solvent emissions per 12-month period)

Eunit is the halogenated HAP solvent emissions for each month (j) for the most recent 12 months (kilograms of solvent per month)

(e) Each owner or operator of an affected facility shall, on the first operating day of the month, after 12 months of emissions data are available, determine the 12-month rolling total emissions, ETfacility, for the 12-month period ending with the most recent month using equation 12:

See PDF for diagram

where:

ETfacility is the total halogenated HAP solvent emissions over the preceding 12 months for all cleaning machines at the facility (kilograms of solvent emissions per 12-month period)

ETunit is the total halogenated HAP solvent emissions over the preceding 12 months for each unit, j (kilograms of solvent emissions per 12-month period)

i is the total number of units at the facility

(4) If the applicable facility-wide emission limit presented in Table 8 is not met, an exceedance has occurred. All exceedances shall be reported as required in s. NR 469.12(8).

(5) Each owner or operator of an affected facility shall maintain records specified in pars. (a) to (c) either in electronic or written form for a period of 5 years. For purposes of this subsection, "each solvent cleaning machine" means each solvent cleaning machine that is part of an affected facility regulated by this section.

(a) The dates and amounts of solvent that are added to each solvent cleaning machine.

(b) The solvent composition of wastes removed from each solvent cleaning machine as determined using the procedure described in sub. (3) (c).

(c) Calculation sheets showing how monthly emissions and the 12-month rolling total emissions from each solvent cleaning machine were determined, and the results of all calculations.

(6) Each owner or operator of an affected facility shall submit an initial notification report to the department no later than May 3, 2010. This report shall include the information specified in pars. (a) to (e).

(a) The name and address of the owner or operator of the affected facility.

(b) The physical location of the solvent cleaning machines that are part of an affected facility regulated by this section.

(c) A brief description of each solvent cleaning machine at the affected facility including machine type (batch vapor, batch cold, vapor in-line or cold in-line), solvent to air interface area and existing controls.

(d) The date of installation for each solvent cleaning machine.

(e) An estimate of annual halogenated HAP solvent consumption for each solvent cleaning machine.

(7) Each owner or operator of an affected facility shall submit to the department an initial statement of compliance on or before May 3, 2010. The statement shall include the information specified in pars. (a) to (c).

(a) The name and address of the owner or operator of the affected facility.

(b) The physical location of each solvent cleaning machine that is part of an affected facility regulated by this section.

(c) The results of the first 12-month rolling total emissions calculation.

(8) Each owner or operator of an affected facility shall submit a solvent emission report every year. The solvent emission report can be combined with the annual report required in s. NR 469.12(6) into a single report for each facility. The solvent emission report shall contain the information specified in pars. (a) and (b).

(a) The average monthly solvent consumption for the affected facility in kilograms per month.

(b) The 12-month rolling total solvent emission estimates calculated each month using the method as described in sub. (3).

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