NR 440.71(3)(f)1.1. Installing and using a cover that meets the specifications in par. (c) 1. to 5. and venting VOC emissions from the equipment to a VOC control device; or NR 440.71(3)(g)(g) In lieu of complying with pars. (b) to (f), each owner or operator may use coatings that contain a maximum of 0.20 kg of VOC per liter of coating solids as calculated on a weighted average basis for each nominal 1-month period. NR 440.71(4)(a)(a) The determination of the applicability of sub. (3) (c), standards for modified or reconstructed coating operations, and determination of control level required in sub. (3) (c) 3. b. is as follows: NR 440.71(4)(a)1.1. To establish applicability of sub. (3) (c) 1. to 3., each owner or operator shall demonstrate, prior to modification or reconstruction, that at least 90% of the VOC content of the coating applied at the coating applicator is recovered or destroyed. The demonstration shall be made using the procedures of par. (b) 1., 2., 3. or 4., as appropriate. NR 440.71(4)(a)2.2. To establish applicability of sub. (3) (c) 4., each owner or operator shall demonstrate, prior to modification or reconstruction, that a total enclosure is installed around the existing coating operation and that all VOC emissions are ventilated to a control device that is at least 92% efficient. The demonstration shall be made using the procedures of par. (b) 5. NR 440.71(4)(a)3.a.a. That the VOC control device subsequently installed is at least 95% efficient. Such demonstration shall be made using Equation (2) specified in par. (b) 2. d. or Equations (4) and (5) specified in par. (b) 3. d. and e., as applicable and the test methods and procedures specified in sub. (6) (b) to (g); and NR 440.71(4)(a)3.b.b. That the overall level of control after the VOC control device is installed is at least as high as the level demonstrated prior to modification or reconstruction pursuant to par. (a) 1. Demonstrations shall be made using the procedures of par. (b) 1., 2., 3. or 4., as appropriate. The required overall level of control subsequent to this demonstration shall be the level so demonstrated or 93%, whichever is lower. NR 440.71(4)(b)1.1. To demonstrate compliance with sub. (3) (b), (c) 1. to 3. or (d), standards for coating operations, when emissions from only the affected coating operations are controlled by a dedicated solvent recovery device, each owner or operator of the affected coating operation shall perform a liquid- liquid VOC material balance over each and every nominal 1-month period. When demonstrating compliance by this procedure, s. NR 440.08 (6) does not apply. The amount of liquid VOC applied and recovered shall be determined as discussed in subd. 1. c. The overall VOC emission reduction (R) is calculated using the following equation: NR 440.71(4)(b)1.a.a. The value of RSi is zero unless the owner or operator submits the following information to the administrator for approval of a measured value of RSi, that is greater than zero: 1) Measurement techniques; and
2) Documentation that the measured value of RSi exceeds zero.
NR 440.71(4)(b)1.b.b. The measurement techniques of subd. 1. a. 1) shall be submitted to the administrator for approval. NR 440.71(4)(b)1.c.c. Each owner or operator demonstrating compliance by the test method described in subd. 1. shall: 1) Measure the amount of coating applied at the coating applicator;
2) Determine the VOC content of all coatings applied using the test method specified in sub. (6) (a);
3) Install, calibrate, maintain and operate, according to the manufacturer’s specifications, a device that indicates the cumulative amount of VOC recovered by the solvent recovery device over each nominal 1-month period. The device shall be certified by the manufacturer to be accurate to within ± 2.0%;
4) Measure the amount of VOC recovered; and
5) Calculate the overall VOC emission reduction (R) for each and every nominal 1-month period using Equation 1.
NR 440.71(4)(b)1.d.d. For facilities subject to sub. (3) (b) or (d), compliance is demonstrated if the value of R is equal to or greater than 93%. NR 440.71(4)(b)1.e.e. Subject to the provisions of subd. 1. f., for facilities subject to sub. (3) (c) 1. to 3., compliance is demonstrated if the value of R is equal to or greater than the percent reduction demonstrated pursuant to par. (a) 1. prior to modification or reconstruction or 93%, whichever is lower. NR 440.71(4)(b)1.f.f. For facilities subject to sub. (3) (c) 3., compliance is demonstrated if the value of E (control device efficiency) is greater than or equal to 0.95 and if the value of R is equal to or greater than the percent reduction demonstrated pursuant to par. (a) 3. or 93%, whichever is lower. NR 440.71(4)(b)2.2. To demonstrate compliance with sub. (3) (b), (c) 1. to 3. or (d), standards for coating operations, when the emissions from only an affected coating operation are controlled by a dedicated incinerator or when a common emission control device, other than a fixed-bed carbon adsorption system with individual exhaust stacks for each adsorber vessel, is used to control emissions from an affected coating operation as well as from other sources of VOC, each owner or operator of an affected coating operation shall perform a gaseous emission test using the following procedures: NR 440.71(4)(b)2.a.a. Construct the overall VOC emission reduction system so that all volumetric flow rates and total VOC emissions can be accurately determined by the applicable test methods and procedures specified in sub. (6) (b) to (g); NR 440.71(4)(b)2.b.b. Determine capture efficiency from the coating operation by capturing, venting and measuring all VOC emissions from the operation. During a performance test, the owner or operator of an affected coating operation located in an area with other sources of VOC shall isolate the coating operation emissions from all other sources of VOC by one of the following methods: