Section NR 469.03 - Batch cold cleaning machine standards(1) Except as provided in sub. (4), each owner or operator of an immersion batch cold solvent cleaning machine shall comply with one of the following requirements: (a) Employ a tightly fitting cover on the machine that shall be closed at all times except during parts entry and removal, and a water layer that has a minimum thickness of 2.5 centimeters (1.0 inch) on the surface of the solvent within the cleaning machine.(b) Employ a tightly fitting cover on the machine that shall be closed at all times except during parts entry and removal, and a freeboard ratio of 0.75 or greater; and comply with the work and operational practices specified in sub. (3).(2) Each owner or operator of a remote-reservoir batch cold solvent cleaning machine shall employ a tightly fitting cover over the solvent sump that shall be closed at all times except during the cleaning of parts and comply with the work and operational practices specified in sub. (3).(3) Each owner or operator of a batch cold solvent cleaning machine complying with sub. (1)(b) or (2) shall comply with the work and operational practice requirements specified in pars. (a) to (i), as applicable. (a) All waste solvent shall be collected and stored in closed containers. Each closed container may contain a device that allows pressure relief, but that device may not allow liquid solvent to drain from the container.(b) If a flexible hose or flushing device is used, flushing shall be performed only within the freeboard area of the solvent cleaning machine.(c) The owner or operator shall drain solvent cleaned parts for 15 seconds or until dripping has stopped, whichever is longer. Parts having cavities or blind holes shall be tipped or rotated while draining.(d) The owner or operator shall ensure that the solvent level does not exceed the fill line.(e) Spills during solvent transfer shall be wiped up immediately. The wipe rags shall be stored in covered containers meeting the requirements of par. (a). (f) When an air- or pump-agitated solvent bath is used, the owner or operator shall ensure that the agitator is operated to produce a rolling motion of the solvent but not observable splashing against tank walls or parts being cleaned.(g) The owner or operator shall ensure that, when the cover is open, the cold cleaning machine is not exposed to drafts greater than 40 meters per minute (132 feet per minute), as measured between one and 2 meters (3.3 and 6.6 feet) upwind and at the same elevation as the tank lip.(h) Except as provided in par. (i), sponges, fabric, wood and paper products may not be cleaned. (i) The prohibition in par. (h) does not apply to the cleaning of porous materials that are part of polychlorinated biphenyl (PCB) laden transformers if those transformers are handled throughout the cleaning process and disposed of in compliance with an approved PCB disposal permit issued in accordance with the Toxic Substances Control Act (15 USC 2605).(3m) Each owner or operator subject to the requirements of sub. (3) (a) to (h) may request to use measures other than those described in sub. (3) (a) to (h). The owner or operator shall demonstrate to the department that the alternative measures will result in equivalent or better emissions control compared to the measures described in sub. (3) (a) to (h). Note: For example, storing solvent and solvent-laden materials in an enclosed area that is ventilated to a solvent recovery or destruction device may be considered an acceptable alternative.
(4) Each owner or operator of an immersion batch cold cleaning machine that is not exempt under s. NR 423.03(2) (a), (b), (c) or (h), but is exempt under s. NR 423.03(2) (i), shall comply with one of the following requirements: (a) Employ a tightly fitting cover on the machine that shall be closed at all times except during parts entry and removal, and a water layer that has a minimum thickness of 2.5 centimeters (1.0 inch) on the surface of the solvent within the cleaning machine; and comply with the work and operational practices specified in sub. (5).(b) Employ a tightly fitting cover on the machine that shall be closed at all times except during parts entry and removal, and a freeboard ratio of 1.0 or greater; and comply with the work and operational practices specified in sub. (3).(5) Each owner or operator of a batch cold solvent cleaning machine complying with sub. (4) (a) shall comply with the work and operational practices specified in pars. (a) to (d). (a) Equip the machine with a facility for draining cleaned parts, with the drainage facility constructed so that parts are enclosed under the cover while draining, except that the drainage facility may be external for applications where an internal type cannot fit into the cleaning system.(b) If used, supply a solvent spray that is a solid fluid stream, not a fine, atomized or shower type spray, at a pressure that does not cause splashing.(c) Provide a permanent, conspicuous label, summarizing the operating requirements.(d) Provide supervision or instruction adequate to ensure the operation is conducted in accord with all of the following: 1. Close the cover whenever parts are not being handled in the cleaner.2. Drain the cleaned parts for at least 15 seconds or until dripping ceases.3. Store waste solvent only in covered containers and not dispose of waste solvent or transfer it to another person in such a way as to cause greater than 15% of the waste solvent, by weight, to evaporate into the ambient air during ozone season, s. NR 419.04 notwithstanding.4. Repair solvent leaks immediately, or shut down the machine until the leaks are repaired. Note: Subsections (4) and (5) contain pertinent language previously applicable under s. NR 423.03(3) and now applicable under this chapter instead to owners and operators of immersion batch cleaning machines that use solvents that contain halogenated HAP compounds that are also VOCs.
(6) Each owner or operator of a new batch cold cleaning machine shall comply with the initial notification reporting requirements as described in s. NR 469.12(1). Each owner or operator of a batch cold cleaning machine shall comply with the initial statement of compliance reporting requirements as described in s. NR 469.12(2). No further reporting or recordkeeping is required.(7) Each owner or operator of a batch cold cleaning machine shall submit an initial notification report as described in s. NR 469.12(1) and an initial statement of compliance as described in s. NR 469.12(2).Wis. Admin. Code Department of Natural Resources NR 469.03
Cr. Register, March, 1997, No. 495, eff. 4-1-97; CR 07-105: r. (1) (c), (2) (b) and (4) (c), am. (3) (intro.) and (h), cr. (3) (i), (3m) and (7) Register December 2008 No. 636, eff. 1-1-09; corrections in (2) and (3) (intro.) made under 13.92(4) (b) 1. and 7., Stats., Register December 2008 No. 636.