NR 463.06(2)(2)Request for a compliance date extension. An owner or operator of an affected source or sources that requests a compliance date extension shall do so in accordance with this subsection and the applicable paragraphs of s. NR 460.05 (7). When the owner or operator is requesting the extension for more than one affected source located at the facility, then only one request may be submitted for all affected sources at the facility.
NR 463.06(2)(a)(a) The owner or operator of an existing affected source who is unable to comply with a relevant standard under this subchapter may request that the department grant an extension allowing the owner or operator up to one additional year to comply with the standard for the affected source. The owner or operator of an affected source who has requested a compliance date extension under this subsection and is otherwise required to obtain a part 70 permit for the source shall apply for the permit or apply to have the part 70 permit revised to incorporate the conditions of the compliance date extension. The conditions of a compliance date extension granted under this subsection will be incorporated into the owner or operator’s part 70 permit for the affected source according to 40 CFR part 70 or part 71, whichever is applicable.
NR 463.06(2)(b)(b) Any request under this subsection for an extension of compliance with a relevant standard shall be submitted in writing to the department not later than 6 months before the affected source’s compliance date as specified in this section.
NR 463.06(3)(3)Methods to demonstrate initial compliance.
NR 463.06(3)(a)(a) Except as provided in pars. (b) and (c), an owner or operator of an affected source subject to the requirements of this subchapter is required to conduct an initial performance test as required under s. NR 460.06, using the procedures and test methods listed in ss. NR 460.06 (2) and (5) and 463.09.
NR 463.06(3)(b)(b) If the owner or operator of an affected source meets all of the following criteria, an initial performance test is not required to be conducted under this subchapter:
NR 463.06(3)(b)1.1. The affected source is a hard chromium electroplating tank, a decorative chromium electroplating tank or a chromium anodizing tank.
NR 463.06(3)(b)2.2. A wetting agent is used in the plating or anodizing bath to inhibit chromium emissions from the affected source.
NR 463.06(3)(b)3.3. The owner or operator complies with the applicable surface tension limit of s. NR 463.04 (3) (a) 3. or (b) 3. or (4) (b) as demonstrated through the continuous compliance monitoring required by s. NR 463.07 (5) (b).
NR 463.06(3)(c)(c) If the affected source is a decorative chromium electroplating tank using a trivalent chromium bath, and the owner or operator is subject to the provisions of s. NR 463.04 (5), an initial performance test is not required to be conducted under this subchapter.
NR 463.06 HistoryHistory: Cr. Register, September, 1997, No. 501, eff. 10-1-97; CR 05-039: am. (1) (c), (e), (3) (b) 1. and 3. Register February 2006 No. 602, eff. 3-1-06; CR 04-023: am. (2) (a), (3) (a), (b) (intro.) and (c) Register December 2008 No, 636, eff. 1-1-09.
NR 463.07NR 463.07Monitoring to demonstrate continuous compliance. The owner or operator of an affected source subject to the emission limitations of this subchapter shall conduct monitoring according to the type of air pollution control technique that is used to comply with the emission limitation. The monitoring required to demonstrate continuous compliance with the emission limitations is identified in this section for the air pollution control techniques expected to be used by the owners or operators of affected sources.
NR 463.07(1)(1)Composite mesh-pad systems.
NR 463.07(1)(a)(a) During the initial performance test, the owner or operator of an affected source, or a group of affected sources under common control, complying with the emission limitations in s. NR 463.04 through the use of a composite mesh-pad system shall determine the outlet chromium concentration using the test methods and procedures in s. NR 463.09 (3), and shall establish as a site-specific operating parameter the pressure drop across the system, setting the value that corresponds to compliance with the applicable emission limitation, using the procedures in s. NR 463.09 (4) (e). An owner or operator may conduct multiple performance tests to establish a range of compliant pressure drop values, or may set as the compliant value the average pressure drop measured over the 3 test runs of one performance test and accept ± 2 inches of water column from this value as the compliant range. 
NR 463.07(1)(b)(b) On and after the date on which the initial performance test is required to be completed under s. NR 460.06, the owner or operator of an affected source, or group of affected sources under common control, shall monitor and record the pressure drop across the composite mesh-pad system once each day that any affected source is operating. To be in compliance with the standards in s. NR 463.04, the composite mesh-pad system shall be operated within ± 2 inches of water column of the pressure drop value established during the initial performance test, or shall be operated within the range of compliant values for pressure drop established during multiple performance tests.
NR 463.07(1)(c)(c) The owner or operator of an affected source complying with the emission limitation of s. NR 463.04 through the use of a composite mesh-pad system may repeat the performance test and establish as a new site-specific operating parameter the pressure drop across the composite mesh-pad system according to the requirements in par. (a) or (b). To establish a new site-specific operating parameter for pressure drop, the owner or operator shall satisfy all of the following requirements:
NR 463.07(1)(c)1.1. Determine the outlet chromium concentration using the test methods and procedures in s. NR 463.09 (3).
NR 463.07(1)(c)2.2. Establish the site-specific operating parameter value using the procedures in s. NR 463.09 (4).
NR 463.07(1)(c)3.3. Satisfy the recordkeeping requirements in s. NR 463.103.
NR 463.07(1)(c)4.4. Satisfy the reporting requirements in s. NR 463.106.
NR 463.07(1)(d)(d) The requirement to operate a composite mesh-pad system within the range of pressure drop values established under pars. (a) to (c) does not apply during the automatic-washdown cycles of the composite-mesh pad system.
NR 463.07(2)(2)Packed-bed scrubber systems.
NR 463.07(2)(a)(a) During the initial performance test, the owner or operator of an affected source, or group of affected sources under common control, complying with the emission limitations in s. NR 463.04 through the use of a packed-bed scrubber system shall determine the outlet chromium concentration using the procedures in s. NR 463.09 (3), and shall establish as site-specific operating parameters the pressure drop across the system and the velocity pressure at the common inlet of the control device, setting the value that corresponds to compliance with the applicable emission limitation using the procedures in s. NR 463.09 (4) (d) and (e). An owner or operator may conduct multiple performance tests to establish a range of compliant operating parameter values. Alternatively, the owner or operator may set as the compliant value the average pressure drop and inlet velocity pressure measured over the 3 test runs of one performance test, and accept ± 1 inch of water column from the pressure drop value and ± 10% from the velocity pressure value as the compliant range.
NR 463.07(2)(b)(b) On and after the date on which the initial performance test is required to be completed under s. NR 460.06, the owner or operator of an affected source, or group of affected sources under common control, shall monitor and record the velocity pressure at the inlet to the packed-bed scrubber and the pressure drop across the scrubber system once each day that any affected source is operating. To be in compliance with the standards in s. NR 463.04, the scrubber system shall be operated within ±10% of the velocity pressure value established during the initial performance test, and within ±1 inch of water column of the pressure drop value established during the initial performance test, or within the range of compliant operating parameter values established during multiple performance tests.
NR 463.07(3)(3)Packed-bed scrubber/composite mesh-pad system. The owner or operator of an affected source, or group of affected sources under common control, that uses a packed-bed scrubber in conjunction with a composite mesh-pad system to meet the emission limitations of s. NR 463.04 shall comply with the monitoring requirements for composite mesh-pad systems as identified in sub. (1).
NR 463.07(4)(4)Fiber-bed mist eliminator.
NR 463.07(4)(a)(a) During the initial performance test, the owner or operator of an affected source, or group of affected sources under common control, complying with the emission limitations in s. NR 463.04 through the use of a fiber-bed mist eliminator shall determine the outlet chromium concentration using the procedures in s. NR 463.09 (3), and shall establish as a site-specific operating parameter the pressure drop across the fiber-bed mist eliminator and the pressure drop across the control device installed upstream of the fiber bed to prevent plugging, setting the value that corresponds to compliance with the applicable emission limitation using the procedures in s. NR 463.09 (4) (e). An owner or operator may conduct multiple performance tests to establish a range of compliant pressure drop values, or may set as the compliant value the average pressure drop measured over the 3 test runs of one performance test and accept ±1 inch of water column from this value as the compliant range.
NR 463.07(4)(b)(b) On and after the date on which the initial performance test is required to be completed under s. NR 460.06, the owner or operator of an affected source, or group of affected sources under common control, shall monitor and record the pressure drop across the fiber-bed mist eliminator, and the control device installed upstream of the fiber bed to prevent plugging, once each day that any affected source is operating. To be in compliance with the standards in s. NR 463.04, the fiber-bed mist eliminator and the upstream control device shall be operated within ±1 inch of water column of the pressure drop value established during the initial performance test, or shall be operated within the range of compliant values for pressure drop established during multiple performance tests.
NR 463.07(5)(5)Wetting agent-type or combination wetting agent-type/foam blanket fume suppressants.