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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 - See PDF for table PDF
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 http://www.oehha.ca.gov/tcdb/index.asp.
NR 469.085(3) (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.
NR 469.085(3)(a) (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.
NR 469.085(3)(b) (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:
- See PDF for diagram PDF (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)
NR 469.085(3)(c) (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.
NR 469.085(3)(c)1. 1. From tests conducted using EPA reference method 25d, incorporated by reference in s. NR 484.04 (25).
NR 469.085(3)(c)2. 2. By engineering calculations included in the compliance report.
NR 469.085(3)(d) (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 PDF (Equation 11)
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)
NR 469.085(3)(e) (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 PDF (Equation 12)
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
NR 469.085(4) (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).
NR 469.085(5) (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.
NR 469.085(5)(a) (a) The dates and amounts of solvent that are added to each solvent cleaning machine.
NR 469.085(5)(b) (b) The solvent composition of wastes removed from each solvent cleaning machine as determined using the procedure described in sub. (3) (c).
NR 469.085(5)(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.
NR 469.085(6) (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).
NR 469.085(6)(a) (a) The name and address of the owner or operator of the affected facility.
NR 469.085(6)(b) (b) The physical location of the solvent cleaning machines that are part of an affected facility regulated by this section.
NR 469.085(6)(c) (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.
NR 469.085(6)(d) (d) The date of installation for each solvent cleaning machine.
NR 469.085(6)(e) (e) An estimate of annual halogenated HAP solvent consumption for each solvent cleaning machine.
NR 469.085(7) (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).
NR 469.085(7)(a) (a) The name and address of the owner or operator of the affected facility.
NR 469.085(7)(b) (b) The physical location of each solvent cleaning machine that is part of an affected facility regulated by this section.
NR 469.085(7)(c) (c) The results of the first 12-month rolling total emissions calculation.
NR 469.085(8) (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).
NR 469.085(8)(a) (a) The average monthly solvent consumption for the affected facility in kilograms per month.
NR 469.085(8)(b) (b) The 12-month rolling total solvent emission estimates calculated each month using the method as described in sub. (3).
NR 469.085 History History: CR 07-105: cr. Register December 2008 No. 636, eff. 1-1-09.
NR 469.09 NR 469.09Test methods.
NR 469.09(1) (1) Except as provided in subs. (6) and (7) for continuous web cleaning machines, each owner or operator of a batch vapor or in-line solvent cleaning machine complying with an idling emission limit standard in s. NR 469.04 (2) (a) 2. or (b) 2. or (3) (a) 2. or (b) 2. shall determine the idling emission rate of the solvent cleaning machine using Method 307 in Appendix A of 40 CFR part 63, incorporated by reference in s. NR 484.04.
NR 469.09(2) (2) Except as provided in sub. (7) for continuous web cleaning machines, each owner or operator of a batch vapor or in-line solvent cleaning machine complying with s. NR 469.08 shall on the first operating day of every month ensure that the solvent cleaning machine system contains only clean liquid solvent as defined in s. NR 469.02 (5). 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 sub. (3). The solvent cleaning machine does not have to be emptied and filled with fresh unused solvent prior to the calculations.
NR 469.09(3) (3) Except as provided in subs. (6) and (7) for continuous web cleaning machines, each owner or operator of a batch vapor or in-line solvent cleaning machine complying with s. NR 469.08 (1) (a) or (b) shall on the first operating day of the month comply with the requirements specified in pars. (a) to (c).
NR 469.09(3)(a) (a) Using the records of all solvent additions and deletions for the previous monthly reporting period required under s. NR 469.08 (1) (a) 1. or (b) 1., determine solvent emissions (Ei or En) using equation 2 for cleaning machines with a solvent/air interface and equation 3 for cleaning machines without a solvent/air interface.
- See PDF for diagram PDF (Equation 2)
- See PDF for diagram PDF (Equation 3)
where:
Ei is the total halogenated HAP solvent emissions from the solvent cleaning machine during the most recent monthly reporting period i, kilograms of solvent per square meter of solvent/air interface area per month (pounds of solvent per square foot of solvent/air interface area per month)
En is the total halogenated HAP solvent emissions from the solvent cleaning machine during the most recent monthly reporting period i, kilograms of solvent per month (pounds of solvent per month)
SAi is the total amount of halogenated HAP liquid solvent added to the solvent cleaning machine during the most recent monthly reporting period i, kilograms of solvent per month (pounds of solvent per month)
LSRi is the total amount of halogenated HAP liquid solvent removed from the solvent cleaning machine during the most recent monthly reporting period i, kilograms of solvent per month (pounds 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. (b), during the most recent monthly reporting period i, kilograms of solvent per month (pounds of solvent per month)
AREAi is the solvent/air interface area of the solvent cleaning machine, square meters, (square feet)
NR 469.09(3)(b) (b) Determine SSRi using the method specified in subd. 1. or 2.
NR 469.09(3)(b)1. 1. From tests conducted using Method 25D in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 484.04.
NR 469.09(3)(b)2. 2. By engineering calculations included in the compliance report, which is described in s. NR 469.12 (6).
NR 469.09(3)(c) (c) Determine the monthly rolling average, EA, for the 3-month period ending with the most recent reporting period using equation 4 for cleaning machines with a solvent/air interface or equation 5 for cleaning machines without a solvent/air interface.
- See PDF for diagram PDF (Equation 4)
- See PDF for diagram PDF (Equation 5)
where:
EAi is the average halogenated HAP solvent emissions over the preceding 3 monthly reporting periods, kilograms of solvent per square meter of solvent/air interface area per month (pounds of solvent per square foot of solvent/air interface area per month)
EAn is the average halogenated HAP solvent emissions over the preceding 3 monthly reporting periods, kilograms of solvent per month (pounds of solvent per month)
Eij is the halogenated HAP solvent emissions for each month (j) for the most recent 3 monthly reporting periods, kilograms of solvent per square meter of solvent/air interface area per month (pounds of solvent per square foot of solvent/air interface area per month)
Enj is the halogenated HAP solvent emissions for each month (j) for the most recent 3 monthly reporting periods, kilograms of solvent per month (pounds of solvent per month)
j=1 is the most recent monthly reporting period
j=2 is the monthly reporting period immediately prior to j=1
j=3 is the monthly reporting period immediately prior to j=2
NR 469.09(4) (4) Each owner or operator of a batch vapor or in-line solvent cleaning machine using dwell to comply with ss. NR 469.04 to 469.07 shall determine the appropriate dwell time for each part or parts basket using the procedure specified in pars. (a) and (b).
NR 469.09(4)(a) (a) Determine the amount of time for the part or parts basket to cease dripping once placed in the vapor zone. The part or parts basket used for this determination shall be at room temperature before being placed in the vapor zone.
NR 469.09(4)(b) (b) The proper dwell time for parts to remain in the freeboard area above the vapor zone is no less than 35% of the time determined in par. (a).
NR 469.09(5) (5) An owner or operator of a source shall determine the source's potential to emit from all solvent cleaning machines, using the procedures described in pars. (a) to (c).
NR 469.09(5)(a) (a) Determine the potential to emit for each individual solvent cleaning machine using equation 6.
- See PDF for diagram PDF (Equation 6)
where:
PTEi is the potential to emit for solvent cleaning machine i, kilograms of solvent per year (pounds of solvent per year)
Hi is hours of operation for solvent cleaning machine  i (hours per year)
= 8760 hours per year, unless otherwise restricted by a federally enforceable requirement
Wi is the working mode uncontrolled emission rate for solvent cleaning machine i, kilograms per square meter per hour (pounds per square foot per hour)
= 1.95 kilograms per square meter per hour (0.40 pounds per square foot per hour) for batch vapor and cold cleaning machines
= 1.12 kilograms per square meter per hour (0.23 pounds per square foot per hour) for in-line cleaning machines
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.