NR 661.1033(11)(11) A closed-vent system shall meet one of the following design requirements: NR 661.1033(11)(a)(a) A closed-vent system shall be designed to operate with no detectable emissions, as indicated by an instrument reading of less than 500 ppmv above background as determined by the procedure specified in s. NR 661.1034 (2), and by visual inspections. NR 661.1033(11)(b)(b) A closed-vent system shall be designed to operate at a pressure below atmospheric pressure. The system shall be equipped with at least one pressure gauge or other pressure measurement device that can be read from a readily accessible location to verify that negative pressure is being maintained in the closed-vent system when the control device is operating. NR 661.1033(12)(12) A remanufacturer or other person that stores or treats hazardous secondary material shall monitor and inspect each closed-vent system required to comply with this section to ensure proper operation and maintenance of the closed-vent system by implementing all of the following requirements: NR 661.1033(12)(a)(a) Each closed-vent system that is used to comply with sub. (11) (a) shall be inspected and monitored in accordance with all of the following requirements: NR 661.1033(12)(a)1.1. An initial leak detection monitoring of the closed-vent system shall be conducted by the remanufacturer or other person that stores or treats the hazardous secondary material on or before the date that the system becomes subject to this section. The remanufacturer or other person that stores or treats the hazardous secondary material shall monitor the closed-vent system components and connections using the procedures specified in s. NR 661.1034 (2) to demonstrate that the closed-vent system operates with no detectable emissions, as indicated by an instrument reading of less than 500 ppmv above background. NR 661.1033(12)(a)2.2. After initial leak detection monitoring required in subd. 1., the remanufacturer or other person that stores or treats the hazardous secondary material shall inspect and monitor the closed-vent system as follows: NR 661.1033(12)(a)2.a.a. Closed-vent system joints, seams, or other connections that are permanently or semi-permanently sealed, such as a welded joint between 2 sections of hard piping or a bolted and gasketed ducting flange, shall be visually inspected at least once per year to check for defects that could result in air pollutant emissions. The remanufacturer or other person that stores or treats the hazardous secondary material shall monitor a component or connection using the procedures specified in s. NR 661.1034 (2) to demonstrate that it operates with no detectable emissions following any time the component is repaired or replaced, such as when a section of damaged hard piping is replaced with new hard piping, or the connection is unsealed, such as an unbolted flange. NR 661.1033(12)(a)2.b.b. Closed-vent system components or connections other than those specified in subd. 2. a. shall be monitored annually and at other times as requested by the department, except as provided for under sub. (15), using the procedures specified in s. NR 661.1034 (2) to demonstrate that the components or connections operate with no detectable emissions. NR 661.1033(12)(a)3.3. In the event that a defect or leak is detected, the remanufacturer or other person that stores or treats the hazardous secondary material shall repair the defect or leak in accordance with the requirements under par. (c). NR 661.1033(12)(a)4.4. The remanufacturer or other person that stores or treats the hazardous secondary material shall maintain a record of the inspection and monitoring in accordance with the requirements specified in s. NR 661.1035. NR 661.1033(12)(b)(b) Each closed-vent system that is used to comply with sub. (11) (b) shall be inspected and monitored in accordance with all of the following requirements: NR 661.1033(12)(b)1.1. The closed-vent system shall be visually inspected by the remanufacturer or other person that stores or treats the hazardous secondary material to check for defects that could result in air pollutant emissions. Defects include visible cracks, holes, or gaps in ductwork or piping or loose connections. NR 661.1033(12)(b)2.2. The remanufacturer or other person that stores or treats the hazardous secondary material shall perform an initial inspection of the closed-vent system on or before the date that the system becomes subject to this section. Thereafter, the remanufacturer or other person that stores or treats the hazardous secondary material shall perform the inspections at least once every year. NR 661.1033(12)(b)3.3. In the event that a defect or leak is detected, the remanufacturer or other person that stores or treats the hazardous secondary material shall repair the defect in accordance with the requirements under par. (c). NR 661.1033(12)(b)4.4. The remanufacturer or other person that stores or treats the hazardous secondary material shall maintain a record of the inspection and monitoring in accordance with the requirements specified in s. NR 661.1035. NR 661.1033(12)(c)(c) The remanufacturer or other person that stores or treats the hazardous secondary material shall repair all detected defects according to all of the following: NR 661.1033(12)(c)1.1. Detectable emissions, as indicated by visual inspection, or by an instrument reading greater than 500 ppmv above background, shall be controlled as soon as practicable, but not later than 15 calendar days after the emission is detected, except as specified in subd. 3. NR 661.1033(12)(c)2.2. A first attempt at repair shall be made no later than 5 calendar days after the emission is detected. NR 661.1033(12)(c)3.3. Delay of repair of a closed-vent system for which leaks have been detected is allowed if the repair is technically infeasible without a process unit shutdown, or if the remanufacturer or other person that stores or treats the hazardous secondary material determines that emissions resulting from immediate repair would be greater than the fugitive emissions likely to result from delay of repair. Repair of such equipment shall be completed by the end of the next process unit shutdown. NR 661.1033(12)(c)4.4. The remanufacturer or other person that stores or treats the hazardous secondary material shall maintain a record of the defect repair in accordance with the requirements specified in s. NR 661.1035. NR 661.1033(13)(13) Closed-vent systems and control devices used to comply with provisions of this subchapter shall be operated at all times when emissions may be vented to them. NR 661.1033(14)(14) An owner or operator using a carbon adsorption system to control air pollutant emissions shall document that all carbon that is a hazardous waste and that is removed from the control device is managed in one of the following manners, regardless of the average volatile organic concentration of the carbon: NR 661.1033(14)(a)(a) Regenerated or reactivated in a thermal treatment unit that meets one of the following: NR 661.1033(14)(a)2.2. The unit is equipped with and operating air emission controls in accordance with the applicable requirements specified in either subchs. AA and CC of this chapter or subchs. AA and CC of ch. NR 665. NR 661.1033(14)(b)(b) Incinerated in a hazardous waste incinerator for which any of the following conditions has been met: NR 661.1033(14)(c)(c) Burned in a boiler or industrial furnace for which any of the following conditions has been met: NR 661.1033(14)(c)2.2. The owner or operator has designed and operates the boiler or industrial furnace in accordance to the interim license requirements specified in subch. H of ch. NR 666. NR 661.1033(15)(15) Any components of a closed-vent system that are designated, as described in s. NR 661.1035 (3) (i), as unsafe to monitor are exempt from the requirements specified in sub. (12) (a) 2. b. if the remanufacturer or other person does all of the following: NR 661.1033(15)(a)(a) The remanufacturer or other person that stores or treats the hazardous secondary material in a hazardous secondary material management unit using a closed-vent system determines that the components of the closed-vent system are unsafe to monitor because monitoring personnel would be exposed to an immediate danger as a consequence of complying with sub. (12) (a) 2. b. NR 661.1033(15)(b)(b) The remanufacturer or other person that stores or treats the hazardous secondary material in a hazardous secondary material management unit using a closed-vent system adheres to a written plan that requires monitoring the closed-vent system components using the procedure specified in sub. (12) (a) 2. b. as frequently as practicable during safe-to-monitor times. NR 661.1033 HistoryHistory: CR 19-082: cr. Register August 2020 No. 776, eff. 9-1-20; renum. (1) (a) to (1) under s. 13.92 (4) (b) 7., Stats., and correction in (14) (a) 2., 3., (b) 2. made under s. 35.17, Stats., Register August 2020 No. 776; correction in (14) (a) 1., (b) 1. made under s. 13.92 (4) (b) 7., Stats., Register April 2021 No. 784. NR 661.1034(1)(1) A remanufacturer or other person that stores or treats hazardous secondary material subject to the provisions of this subchapter shall comply with the test methods and procedural requirements provided in this section. NR 661.1034(2)(2) When a closed-vent system is tested for compliance with no detectable emissions, as required under s. NR 661.1033 (12), the test shall comply with all of the following requirements: NR 661.1034(2)(c)(c) The instrument shall be calibrated before use on each day of its use by the procedures specified in Reference Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. NR 661.1034(2)(d)2.2. A mixture of methane or n-hexane and air at a concentration of approximately, but less than, 10,000 ppm methane or n-hexane. NR 661.1034(2)(f)(f) The instrument probe shall be traversed around all potential leak interfaces as close to the interface as possible as described in Reference Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. NR 661.1034(2)(g)(g) The arithmetic difference between the maximum concentration indicated by the instrument and the background level shall be compared with 500 ppm for determining compliance. NR 661.1034(3)(a)(a) Performance tests to determine total organic compound concentrations and mass flow rates entering and exiting control devices shall be conducted and data reduced in accordance with all of the following reference methods and calculation procedures: NR 661.1034(3)(a)2.2. Method 18 or Method 25A in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11, for organic content. If Method 25A is used, the organic HAP used as the calibration gas shall be the single organic HAP representing the largest percent by volume of the emissions. The use of Method 25A is acceptable if the response from the high-level calibration gas is at least 20 times the standard deviation of the response from the zero calibration gas when the instrument is zeroed on the most sensitive scale. NR 661.1034(3)(a)3.3. Each performance test shall consist of 3 separate runs. Each run shall be conducted for at least 1 hour under the conditions that exist when the hazardous secondary material management unit is operating at the highest load or capacity level reasonably expected to occur. For the purpose of determining total organic compound concentrations and mass flow rates, the average of results of all runs shall apply. The average shall be computed on a time-weighted basis. NR 661.1034(3)(a)4.4. Total organic mass flow rates shall be determined by one of the following equations: Where:
Eh= Total organic mass flow rate, kg/h
Q2sd= Volumetric flow rate of gases entering or exiting control device, as determined by Method 2, dscm/h
n = Number of organic compounds in the vent gas
Ci= Organic concentration in ppm, dry basis, of compound i in the vent gas, as determined by Method 18
MWi= Molecular weight of organic compound i in the vent gas, kg/kg-mol
0.0416 = Conversion factor for molar volume, kg-mol/m3 (@293 K and 760 mm Hg)
10-6 = Conversion from ppm
Where:
Eh= Total organic mass flow rate, kg/h
Q = Volumetric flow rate of gases entering or exiting control device, as determined by Method 2, dscm/h
C = Organic concentration in ppm, dry basis, as determined by Method 25A
MW = Molecular weight of propane, 44
0.0416 = Conversion factor for molar volume, kg-mol/m3 (@293 K and 760 mm Hg)
10-6 = Conversion from ppm.
NR 661.1034(3)(a)5.5. The annual total organic emission rate shall be determined by the following equation: Where:
EA = Total organic mass emission rate, kg/y
Eh = Total organic mass flow rate for the process vent, kg/h
H = Total annual hours of operations for the affected unit, h
NR 661.1034(3)(a)6.6. Total organic emissions from all affected process vents at the facility shall be determined by summing the hourly total organic mass emission rates, Eh, as determined in subd. 4., and by summing the annual total organic mass emission rates, EA, as determined in subd. 5., for all affected process vents at the facility. NR 661.1034(3)(b)(b) The remanufacturer or other person that stores or treats the hazardous secondary material shall record process information that may be necessary to determine the conditions of the performance tests. Operations during periods of startup, shutdown, and malfunction may not constitute representative conditions for the purpose of a performance test. NR 661.1034(3)(c)(c) The remanufacturer or other person that stores or treats the hazardous secondary material at an affected facility shall provide, or cause to be provided, all of the following performance testing facilities: NR 661.1034(3)(d)(d) For the purpose of making compliance determinations, the time-weighted average of the results of the 3 runs required in par. (a) 3. shall apply. In the event that a sample is accidentally lost or conditions occur in which one of the 3 runs must be discontinued because of forced shutdown, failure of an irreplaceable portion of the sample train, extreme meteorological conditions, or other circumstances beyond the control of the remanufacturer or other person that stores or treats the hazardous secondary material, compliance may, upon the department’s approval, be determined using the average of the results of the 2 other runs. NR 661.1034(4)(4) To show that a process vent associated with a hazardous secondary material distillation, fractionation, thin-film evaporation, solvent extraction, or air or steam stripping operation is not subject to the requirements of this subchapter, the remanufacturer or other person that stores or treats the hazardous secondary material shall make an initial determination that the time-weighted, annual average total organic concentration of the material managed by the hazardous secondary material management unit is less than 10 ppmw using one of the following 2 methods:
