NR 661.1084(8)(c)2.2. At those times when purging of inerts from the tank is required and the purge stream is routed to a closed-vent system and control device designed and operated in accordance with the requirements specified in s. NR 661.1087.

NR 661.1084(9)(9) The remanufacturer or other person that stores or treats the hazardous secondary material who controls air pollutant emissions by using an enclosure vented through a closed-vent system to an enclosed combustion control device shall meet the of the following requirements:

NR 661.1084(9)(a)(a) The tank shall be located inside an enclosure and the enclosure shall be designed and operated in accordance with the criteria for a permanent total enclosure as specified in “Procedure T—Criteria for and Verification of a Permanent or Temporary Total Enclosure” of appendix B of 40 CFR 52.741, incorporated by reference in s. NR 660.11. The enclosure may have permanent or temporary openings to allow worker access; passage of material into or out of the enclosure by conveyor, vehicles, or other mechanical means; entry of permanent mechanical or electrical equipment; or direct airflow into the enclosure. The remanufacturer or other person that stores or treats the hazardous secondary material shall perform the verification procedure for the enclosure as specified in Section 5.0 of “Procedure T—Criteria for and Verification of a Permanent or Temporary Total Enclosure” initially when the enclosure is first installed and, thereafter, annually.

NR 661.1084(9)(b)(b) The enclosure shall be vented through a closed-vent system to an enclosed combustion control device that is designed and operated in accordance with the standards for either a vapor incinerator, boiler, or process heater specified in s. NR 661.1087.

NR 661.1084(9)(c)(c) Safety devices, as defined in s. NR 661.1081, may be installed and operated as necessary on any enclosure, closed-vent system, or control device used to comply with the requirements specified in pars. (a) and (b).

NR 661.1084(9)(d)(d) The remanufacturer or other person that stores or treats the hazardous secondary material shall inspect and monitor the closed-vent system and control device as specified in s. NR 661.1087.

NR 661.1084(10)(10) The remanufacturer or other person that stores or treats the hazardous secondary material shall transfer hazardous secondary material to a tank subject to this section in accordance with all of the following requirements:

NR 661.1084(10)(a)(a) Except as provided in par. (b), transfer of hazardous secondary material to the tank from another tank subject to this section shall be conducted using continuous hard-piping or another closed system that does not allow exposure of the hazardous secondary material to the atmosphere.

NR 661.1084 NoteNote: For the purpose of complying with this provision, an individual drain system as defined in 40 CFR part 63, subpart RR - National Emission Standards for Individual Drain Systems is considered to be a closed system when it meets the requirements of 40 CFR part 63, subpart RR—National Emission Standards for Individual Drain Systems.

NR 661.1084(10)(b)(b) The requirements under par. (a) do not apply when transferring a hazardous secondary material to the tank under any of the following conditions:

NR 661.1084(11)(11) The remanufacturer or other person that stores or treats the hazardous secondary material shall repair each defect detected during an inspection performed in accordance with the requirements specified in subs. (3) (d), (5) (c), (6) (c), or (7) (c) as follows:

NR 661.1084(11)(a)(a) The remanufacturer or other person that stores or treats the hazardous secondary material shall make first efforts at repair of the defect no later than 5 calendar days after detection, and repair shall be completed as soon as possible but no later than 45 calendar days after detection except as provided in par. (b).

NR 661.1084(11)(b)(b) Repair of a defect may be delayed beyond 45 calendar days if the remanufacturer or other person that stores or treats the hazardous secondary material determines that repair of the defect requires emptying or temporary removal from service of the tank and no alternative tank capacity is available at the site to accept the hazardous secondary material normally managed in the tank. In this case, the remanufacturer or other person that stores or treats the hazardous secondary material shall repair the defect the next time the process or unit that is generating the hazardous secondary material managed in the tank stops operation. Repair of the defect shall be completed before the process or unit resumes operation.

NR 661.1084(12)(12) Following the initial inspection and monitoring of the cover as required by the applicable provisions of this subchapter, subsequent inspection and monitoring may be performed at intervals longer than one year under any of the following special conditions:

NR 661.1084(12)(a)(a) In the case when inspecting or monitoring the cover would expose a worker to dangerous, hazardous, or other unsafe conditions, then the remanufacturer or other person that stores or treats the hazardous secondary material may designate a cover as an “unsafe to inspect and monitor cover” and comply with all of the following requirements:

NR 661.1084(12)(a)2.2. Develop and implement a written plan and schedule to inspect and monitor the cover, using the procedures specified in the applicable section of this subchapter, as frequently as practicable during those times when a worker can safely access the cover.

NR 661.1084(12)(b)(b) In the case when a tank is buried partially or entirely underground, a remanufacturer or other person that stores or treats the hazardous secondary material is required to inspect and monitor, as required by the applicable provisions of this section, only those portions of the tank cover and those connections to the tank, such as fill ports, access hatches, or gauge wells, that are located on or above the ground surface.

NR 661.1084 HistoryHistory: CR 19-082: cr. Register August 2020 No. 776, eff. 9-1-20; correction in (2) (a) (intro.), (6) (intro.), (c) 1. d. made under s. 35.17, Stats., Register August 2020 No. 776; correction in (10) (b) 2., 3. made under s. 13.92 (4) (b) 7., Stats., Register April 2021 No. 784.

NR 661.1086(1)(1) Applicability. The provisions of this section apply to the control of air pollutant emissions from containers for which s. NR 661.1082 (2) references the use of this section for such air emission control.

NR 661.1086(2)(a)(a) The remanufacturer or other person that stores or treats the hazardous secondary material shall control air pollutant emissions from each container subject to this section in accordance with all of the following requirements, as applicable to the container:

NR 661.1086(2)(a)1.1. For a container having a design capacity greater than 0.1 m3 and less than or equal to 0.46 m3, the remanufacturer or other person that stores or treats the hazardous secondary material shall control air pollutant emissions from the container in accordance with the Container Level 1 standards specified in sub. (3).

NR 661.1086(2)(a)2.2. For a container having a design capacity greater than 0.46 m3 that is not in light material service, the remanufacturer or other person that stores or treats the hazardous secondary material shall control air pollutant emissions from the container in accordance with the Container Level 1 standards specified in sub. (3).