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 RS
i is zero unless the owner or operator submits the following information to the administrator for approval of a measured value of RS
i, 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:
1) Build a temporary enclosure around the affected coating operation; or
NR 440.71 Note
Note:
See sub. (2) (a) 16.
2) Shut down all other sources of VOC and continue to exhaust fugitive emissions from the affected coating operation through any building ventilation system and other room exhausts such as drying ovens. All ventilation air shall be vented through stacks suitable for testing;
NR 440.71(4)(b)2.c.
c. Operate the emission control device with all emission sources connected and operating;
NR 440.71(4)(b)2.d.
d. Determine the efficiency (E) of the control device using the following equation:
NR 440.71(4)(b)2.e.
e. Determine the efficiency (F) of the VOC capture system using the following equation:
NR 440.71(4)(b)2.f.
f. For each affected coating operation subject to
sub. (3) (b) or
(d), compliance is demonstrated if the product of (E)
(F) is equal to or greater than 0.93.
NR 440.71(4)(b)2.g.
g. For each affected coating operation subject to
sub. (3) (c) 2., compliance is demonstrated if the product of (E)
(F) is equal to or greater than the fractional reduction demonstrated pursuant to
par. (a) 1. prior to modification or reconstruction or 0.93, whichever is lower.
NR 440.71(4)(b)2.h.
h. For each affected coating operation subject to
sub. (3) (c) 3., compliance is demonstrated if the value of E is greater than or equal to 0.95 and if the product of (E)
(F) is equal to or greater than the fractional reduction demonstrated pursuant to
par. (a) 3. or
0.93, whichever is lower.
NR 440.71(4)(b)3.
3. To demonstrate compliance with
sub. (3) (b),
(c) 1. to
3. or
(d), standards for coating operations, when 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)3.a.
a. Construct the overall VOC emission reduction system so that each volumetric flow rate and the 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)3.b.
b. Assure that all VOC emissions from the coating operation are segregated from other VOC sources and that the emissions can be captured for measurement, as described in
subd. 2. b. 1) and 2);
NR 440.71(4)(b)3.c.
c. Operate the emission control device with all emission sources connected and operating;
NR 440.71(4)(b)3.d.
d. Determine the efficiency (H
v) of each individual adsorber vessel (v) using the following equation:
NR 440.71(4)(b)3.e.
e. Determine the efficiency of the carbon adsorption system (H
sys) by computing the average efficiency of the adsorber vessels as weighted by the volumetric flow rate (Q
hv) of each individual adsorber vessel (v) using the following equation:
NR 440.71(4)(b)3.f.
f. Determine the efficiency (F) of the VOC capture system using Equation (3).
NR 440.71(4)(b)3.g.
g. For the affected coating operation subject to
sub. (3) (b) or
(d), compliance is demonstrated if the product of (H
sys)
(F) is equal to or greater than 0.93.
NR 440.71(4)(b)3.h.
h. For the affected coating operation subject to
sub. (3) (c) 2., compliance is demonstrated if the product of (H
sys)
(F) is equal to or greater than the fractional reduction demonstrated pursuant to
par. (a) 1. prior to modification or reconstruction or 0.93, whichever is lower.
NR 440.71(4)(b)3.i.
i. For each affected coating operation subject to
sub. (3) (c) 3., compliance is demonstrated if the value of H
sys is greater than or equal to 0.95 and if the product of (H
sys)
(F) is equal to or greater than the fractional reduction demonstrated pursuant to
par. (a) 3. or
0.93, whichever is lower.
NR 440.71(4)(b)4.
4. To demonstrate compliance with
sub. (3) (b),
(c) 1. to
3. or
(d), standards for coating operations, when the VOC emissions from more than one affected coating operation are collected by a common capture system and are vented through a common duct to a control device that is also controlling emissions from nonaffected sources and the emissions from the nonaffected sources are vented separately from the affected coating operations, the owner or operator may:
NR 440.71(4)(b)4.a.
a. Consider the combined affected coating operations as single emission source; and
NR 440.71(4)(b)4.b.
b. Conduct a compliance test on this single source by the methods described in
subd. 2. or
3., as applicable.
NR 440.71(4)(b)5.
5. An alternative method of demonstrating compliance with
sub. (3) (b) or
(d), standards for coating operations, and the sole method of demonstrating compliance with
sub. (3) (c) 4., standards for modified or reconstructed coating operations, is the installation of a total enclosure around the coating operation and the ventilation of all VOC emissions from the total enclosure to a control device with the efficiency specified in
par. (b) 5. c. 1) or 2), as applicable. If this method is selected, the compliance test methods described in
par. (b) 1. to
4. are not required. Instead, each owner or operator of an affected coating operation shall:
NR 440.71(4)(b)5.a.
a. Demonstrate that a total enclosure is installed. An enclosure that meets the requirements in
subd. 5. a. 1) to 4) shall be assumed to be a total enclosure. The owner or operator of an enclosed coating operation that does not meet the requirements may apply to the administrator for approval of the enclosure as a total enclosure on a case-by-case basis. The enclosure shall be considered a total enclosure if it is demonstrated to the satisfaction of the administrator that all VOC emissions from the affected coating operation are contained and vented to the control device. The requirements for automatic approval are as follows:
1) Total area of all natural draft openings may not exceed 5% of the total surface area of the total enclosure's walls, floor and ceiling;
2) All sources of emissions within the enclosure shall be a minimum of 4 equivalent diameters away from each natural draft opening;
3) Average inward face velocity across all natural draft openings (FV) shall be a minimum of 3,600 meters per hour as determined by the following procedures:
a) Construct all forced makeup air ducts and all exhaust ducts so that the volumetric flow rate in each can be accurately determined by the test methods and procedures specified in sub. (6) (c) and (d). Volumetric flow rates shall be calculated without the adjustment normally made for moisture content; and
b) Determine FV by the following equation:
4) The air passing through all natural draft openings shall flow into the enclosure continuously. If FV is less than or equal to 9,000 meters per hour, the continuous inward flow of air shall be verified by continuous observation using smoke tubes, streamers, tracer gases or other means approved by the administrator over the period that the volumetric flow tests required to determine FV are carried out. If FV is greater than 9,000 meters per hour, the direction of airflow through the natural draft openings shall be presumed to be inward at all times without verification.
NR 440.71(4)(b)5.b.
b. Determine the control device efficiency using Equation (2) or Equations (4) and (5), as applicable and the test methods and procedures specified in
sub. (6) (b) to
(g).
NR 440.71(4)(b)5.c.
c. Compliance is demonstrated if the installation of a total enclosure is demonstrated and the value of E determined from Equation (2), or the value of H
sys determined from Equations (4) and (5), as applicable, is equal to or greater than the required efficiency as follows:
1) For coating operations subject to the standards of sub. (3) (b), (c) 4. b. and (d), 0.95 (95%); or
2) For coating operations subject to the standards of sub. (3) (c) 4. a., the value of E determined from Equation (2), or the value of Hsys determined from Equations (4) and (5), as applicable, pursuant to par. (a) 2. prior to modification or reconstruction or 0.95 (95%), whichever is lower.
NR 440.71(4)(b)6.
6. To demonstrate compliance with
sub. (3) (e) (standard for new mix equipment with concurrent construction of a control device), each owner or operator of affected coating mix preparation equipment shall demonstrate upon inspection that:
NR 440.71(4)(b)6.b.
b. Procedures detailing the proper use of covers, as specified in
sub. (3) (c) 1., have been posted in all areas where affected coating mix preparation equipment is used;
NR 440.71(4)(b)6.c.
c. The coating mix preparation equipment is vented to a control device; and
NR 440.71(4)(b)6.d.
d. The control device efficiency (E or H
sys, as applicable) determined using Equation (2) or Equations (4) and (5), respectively and the test methods and procedures specified in
sub. (6) (b) to
(g) is equal to or greater than 0.95.
NR 440.71(4)(b)7.
7. To demonstrate compliance with
sub. (3) (f) 1., standard for mix equipment, each owner or operator of affected coating mix preparation equipment shall demonstrate upon inspection that:
NR 440.71(4)(b)7.b.
b. Procedures detailing the proper use of covers, as specified in
sub. (3) (c) 1., have been posted in all areas where affected coating mix preparation equipment is used; and
NR 440.71(4)(b)8.
8. To demonstrate compliance with
sub. (3) (f) 2., standard for mix equipment, each owner or operator of affected coating mix preparation equipment shall demonstrate upon inspection that both:
NR 440.71(4)(b)8.b.
b. Procedures detailing the proper use of covers, as specified in
sub. (3) (c) 1., have been posted in all areas where affected coating mix preparation equipment is used.
NR 440.71(4)(b)9.
9. To determine compliance with
sub. (3) (g), high-solids coatings alternative standard, each owner or operator of an affected facility shall determine the weighted average mass of VOC contained in the coating per volume of coating solids applied for each and every nominal 1-month period according to the following procedures:
NR 440.71(4)(b)9.b.
b. Determine the volume of coating solids in each coating applied from the facility records; and
NR 440.71(4)(b)9.d.
d. For each affected facility where the value of G is less than or equal to 0.20 kilogram of VOC per liter of coating solids applied, the facility is in compliance.
NR 440.71(4)(c)
(c) Startups and shutdowns are normal operation for this source category. Emissions from these operations are to be included when determining if the standards for coating operations specified in
sub. (3) (b) to
(d) are being attained.
NR 440.71(4)(d)
(d) If a control device other than a carbon adsorber, condenser or incinerator is used to control emissions from an affected facility, the necessary operating specifications for that device shall be obtained from the administrator. An example of such a device is a flare.
NR 440.71(5)
(5) Installation of monitoring devices and recordkeeping. All monitoring devices required under the provisions of this subsection shall be installed and calibrated, according to the manufacturer's specifications, prior to the initial performance tests in locations such that representative values of the monitored parameters will be obtained. The parameters to be monitored shall be continuously measured and recorded during all performance tests.
NR 440.71(5)(a)
(a) Each owner or operator of an affected coating operation that utilizes less solvent annually than the applicable cutoff provided in
sub. (1) (b) and that is not subject to
sub. (3), standards for coating operations, shall maintain records of actual solvent use.
NR 440.71(5)(b)
(b) Each owner or operator of an affected coating operation demonstrating compliance by the test method described in
sub. (4) (b) 1., liquid material balance, shall maintain records of all the following for each and every nominal 1-month period:
NR 440.71(5)(b)2.
2. Results of the reference test method specified in
sub. (6) (a) for determining the VOC content of all coatings applied;
NR 440.71(5)(c)
(c) Each owner or operator of an affected coating operation or affected coating mix preparation equipment controlled by a carbon adsorption system and demonstrating compliance by the procedures described in
sub. (4) (b) 2.,
3.,
4.,
5. or
6., which include control device efficiency determinations, shall carry out the monitoring and recordkeeping provisions of
subd. 1. or
2., as appropriate.
NR 440.71(5)(c)1.
1. For carbon adsorption systems with a common exhaust stack for all the individual adsorber vessels, install, calibrate, maintain and operate, according to the manufacturer's specifications, a monitoring device that continuously indicates and records the concentration level of organic compounds in either the control device outlet gas stream or in both the control device inlet and outlet gas streams. The outlet gas stream would be monitored if the percent increase in the concentration level of organic compounds is used as the basis for reporting, as described in
sub. (8) (d) 3. The inlet and outlet gas streams would be monitored if the percent control device efficiency is used as the basis for reporting, as described in
sub. (8) (d) 4.
NR 440.71(5)(c)2.
2. For carbon adsorption systems with individual exhaust stacks for each adsorber vessel, install, calibrate, maintain and operate, according to the manufacturer's specifications, a monitoring device that continuously indicates and records the concentration level of organic compounds in the outlet gas stream for a minimum of one complete adsorption cycle per day for each adsorber vessel. The owner or operator may also monitor and record the concentration level of organic compounds in the common carbon adsorption system inlet gas stream or in each individual carbon adsorber vessel inlet stream. The outlet gas streams alone would be monitored if the percent increase in the concentration level of organic compounds is used as the basis for reporting, as described in
sub. (8) (d) 3. In this case, the owner or operator shall compute daily a 3-day rolling average concentration level of organics in the outlet gas stream from each individual adsorber vessel. The inlet and outlet gas streams would be monitored if the percent control device efficiency is used as the basis for reporting, as described in
sub. (8) (d) 4. In this case, the owner or operator shall compute daily a 3-day rolling average efficiency for each individual adsorber vessel.
