Chapter NR 407

NR 407.03(1)(d) (d) Portland concrete batch plants which produce less than 20,000 cubic yards of concrete per month averaged over any 12 consecutive month period.

NR 407.03(1)(e) (e) Storage tanks containing organic compounds with a true vapor pressure in pounds per square inch absolute at 70°F of less than 1.52 with a combined total tankage capacity of not more than 40,000 gallons.

NR 407.03(1)(f) (f) VOC storage tanks with a combined total tankage capacity of not more than 10,000 gallons of volatile organic compounds.

NR 407.03(1)(g) (g) Painting or coating operations, including associated quality assurance laboratories and cleaning operations, which emit or will emit not more than 1,666 pounds of volatile organic compounds per month, which are measured prior to entering any emission control devices, unless the emissions of any single hazardous air pollutant listed under section 112 (b) of the Act (42 USC 7412 (b)) equal or exceed 10 tons per year or the cumulative emissions of hazardous air pollutants listed under section 112 (b) of the Act equal or exceed 25 tons per year.

NR 407.03(1)(gm) (gm) Automobile refinishing operations, including associated quality assurance laboratories and cleaning operations, which emit or will emit not more than 1,666 pounds of volatile organic compounds per month, which are measured prior to entering any emission control devices, unless the emissions of any single hazardous air pollutant listed under section 112(b) of the Act (42 USC 7412(b)) equal or exceed 10 tons per year or the cumulative emissions of hazardous air pollutants listed under section 112(b) of the Act equal or exceed 25 tons per year.

NR 407.03(1)(h) (h) Graphic arts operations, including associated quality assurance laboratories and cleaning operations, which emit or will emit not more than 1,666 pounds of volatile organic compounds per month, which are measured prior to entering any emission control devices, unless the emissions of any single hazardous air pollutant listed under section 112 (b) of the Act equal or exceed 10 tons per year or the cumulative emissions of hazardous air pollutants listed under section 112 (b) of the Act equal or exceed 25 tons per year.

NR 407.03(1)(i) (i) Cold cleaning equipment which meets both of the following requirements:

NR 407.03(1)(i)1. 1. The equipment has a total air to solvent interface of 1.0 square meters or less during operation.

NR 407.03(1)(i)2. 2. The equipment does not use any halogenated HAP solvent as a cleaning or drying agent.

NR 407.03(1)(j) (j) Open top vapor degreasing equipment which meets both of the following requirements:

NR 407.03(1)(j)1. 1. The equipment has a total air to vapor interface of 1.0 square meters or less during operation.

NR 407.03(1)(j)2. 2. The equipment does not use any halogenated HAP solvent as a cleaning or drying agent.

NR 407.03(1)(k) (k) Coin-operated dry cleaning machines.

NR 407.03(1)(km) (km) Chromium electroplating and chromium anodizing operations which are not major sources or located at major sources and which are any of the following:

NR 407.03(1)(km)1. 1. Any decorative chromium electroplating operation or chromium anodizing operation that uses fume suppressants as an emission reduction technology.

NR 407.03(1)(km)2. 2. Any decorative chromium electroplating operation that uses a trivalent chromium bath that incorporates a wetting agent as a bath ingredient.

NR 407.03(1)(L) (L) Private alcohol fuel production systems as defined in s. 289.44 (1) (c), Stats.

NR 407.03(1)(m) (m) Crematories.

NR 407.03(1)(n) (n) Indirect malt dryers which are designed to burn fuels specified in par. (a) at a heat input rate less than the rates specified in par. (a).

NR 407.03(1)(o) (o) A laboratory which emits volatile organic compounds, sulfur dioxide, carbon monoxide, nitrogen oxides or particulate matter or a combination thereof at a rate of less than 5.7 pounds per hour unless the emissions of any single hazardous air pollutant listed under section 112 (b) of the Act (42 USC 7412 (b)) equal or exceed 10 tons per year or the cumulative emissions of all such hazardous air pollutants listed under section 112 (b) of the Act equal or exceed 25 tons per year. Hourly emissions shall be determined, based on the quantitative estimate of air contaminants before they enter any emission control devices, by dividing the total uncontrolled emissions which would have occurred during a calendar month by the total hours of operation of the laboratory during that calendar month. A laboratory is in operation if laboratory apparatus or equipment is in use.

NR 407.03(1)(p) (p) Equipment the primary purpose of which is to transport or sort paper.

NR 407.03(1)(q) (q) Facilities for chlorination of municipal drinking water, the intake of once through industrial process or cooling water, or water for swimming pools, spas or other recreational establishments.

NR 407.03(1)(r) (r) Gasoline dispensing facilities which dispense gasoline or other petroleum products.

NR 407.03(1)(s) (s) Bulk gasoline plants which distribute gasoline or other petroleum products and which have an average daily gasoline throughput of less than 15,000 liters (4,000 gallons), based on a 30-day rolling average.

NR 407.03(1)(sm) (sm) The following procedures for the remediation or disposal of soil or water contaminated with organic compounds, provided the potential to emit, considering emission control devices, for any hazardous air contaminant listed in Table A to Table C of s. NR 445.07 is not greater than the emission rate listed in Table A to Table C of s. NR 445.07 for the air contaminant at the respective stack height, the procedure is not a major source and the procedure is not subject to any standard or regulation under section 111 or 112 of the Act (42 USC 7411 or 7412):

NR 407.03(1)(sm)1. 1. Landspreading of contaminated soil, including the agricultural landspreading of soil contaminated with pesticide or fertilizer.

NR 407.03(1)(sm)2. 2. Negative pressure venting of contaminated soil or bioremediation, provided the remediation is completed within 18 months or the potential to emit organic compounds from the remediation site is at a rate of not more than 5.7 pounds per hour, considering emission control devices.

NR 407.03(1)(sm)3. 3. Pilot testing of a negative pressure venting system provided the testing is limited to a total withdrawal of not more than 150,000 standard cubic feet (scf) of air.

NR 407.03 Note Note: The total withdrawal may be determined by the equation: Total withdrawal (scf) = hours of operation of pilot test (hr) × average flow rate in cubic feet per minute at standard conditions (scfm) × 60 min/hr. An example is: 10 hours of operation × 250 scfm × 60 min/hr = 150,000 scf. When testing at multiple flow rates, determine the withdrawal for each flow rate and sum the withdrawals for a total withdrawal.

NR 407.03(1)(sm)4. 4. Landfilling of contaminated soil.

NR 407.03(1)(sm)5. 5. Installation and use of devices which remove organic compounds from a private or municipal potable water supply.

NR 407.03(1)(sm)6. 6. Installation and use of crop irrigation systems or dewatering wells to remediate contaminated water.

NR 407.03(1)(sm)7. 7. Installation and use of air strippers for treatment of contaminated water, provided the remediation is completed within 18 months or the potential to emit organic compounds from the remediation site is at a rate of not more than 5.7 pounds per hour, considering emission control devices.

NR 407.03(1)(sm)8. 8. Installation and use of any devices or techniques not listed in this paragraph which are used to remediate soil or water contaminated with organic compounds, if the device or technique is not portable and is not a thermal evaporation unit, and the remediation is completed within 18 months.

NR 407.03(1)(sm)9. 9. Installation and use of any technique or device to remediate soil or water contaminated with organic compounds as part of actions taken by EPA under the authority of the comprehensive environmental response compensation and liability act of 1980 (42 USC 9601 to 9675), by the department under the authority of s. 292.11 or 292.31, Stats., or by a responsible party in compliance with the requirements of an administrative order, consent decree or contract issued pursuant to the comprehensive environmental response compensation and liability act of 1980 or s. 292.11 or 292.31, Stats.

NR 407.03(1)(sq) (sq) Renovation or demolition operations involving regulated asbestos-containing material.

NR 407.03(1)(t) (t) A combination of emission units which consists of not more than one each of the following specific categories of sources unless the combination of units is a major source:

NR 407.03(1)(t)1. 1. Fuel burning equipment otherwise exempt under par. (a) or (u).

NR 407.03(1)(t)2. 2. Equipment designed to incinerate solid wastes otherwise exempt under par. (b).

NR 407.03(1)(t)3. 3. Storage tanks of organic compounds with a combined total tankage capacity of not more than 40,000 gallons if not more than 10,000 gallons of the storage tanks’ capacity is used for storage of volatile organic compounds.

NR 407.03(1)(t)4. 4. Grain storage facilities otherwise exempt under par. (ce).

NR 407.03(1)(t)5. 5. Grain processing facilities otherwise exempt under par. (cm).

NR 407.03(1)(t)6. 6. Only one of the other specific category exemptions listed in pars. (d), (g) to (s) and (v) to (z).

NR 407.03(1)(u) (u) Restricted use reciprocating internal combustion engines which are fueled by gaseous fuels, gasoline, or a clean fuel as defined in s. NR 406.02 (1) and which have a combined total electrical output of less than 3,000 kilowatts, or the equivalent in brake horsepower. An owner or operator claiming exemption under this paragraph shall maintain records of all of the following:

NR 407.03(1)(u)1. 1. The electrical output in kilowatts, or the equivalent in brake horsepower, of each engine.

NR 407.03(1)(u)2. 2. The total hours each engine is operated during a year.

NR 407.03(1)(v) (v) Any quarry, mine or other facility where nonmetallic minerals are extracted that is not a ledge rock quarry or industrial sand mine.

NR 407.03(1)(w) (w) Ledge rock quarries with actual production of less than 25,000 tons per month on a rolling 12 month average, or with actual operation of less than 365 days per 5 year period.

NR 407.03(1)(x) (x) Industrial sand mines with actual production of less than 2,000 tons per month on a rolling 12 month average.

NR 407.03(1)(y) (y) Fixed sand and gravel plants and fixed crushed stone plants with capacities of 25 tons per hour or less.

NR 407.03(1)(z) (z) Portable sand and gravel plants and portable crushed stone plants with capacities of 150 tons per hour or less.

NR 407.03(1m) (1m) Facilities exempt based on actual emissions.

NR 407.03(1m)(a) (a) Any facility that is required to submit an annual emission inventory report under s. NR 438.03 is exempt from the requirement to obtain an operation permit following notification under par. (c), where all of the following criteria and requirements are met:

NR 407.03(1m)(a)1. 1. The actual emissions of each air contaminant from the facility do not exceed any of the following levels:

NR 407.03(1m)(a)1.a. a. 10 tons in any calendar year for each of the following air contaminants: particulate matter, nitrogen oxide, sulfur dioxide, PM10, carbon monoxide and volatile organic compounds.

NR 407.03(1m)(a)1.b. b. 0.5 tons in any calendar year for lead.

NR 407.03(1m)(a)1.c. c. Any stack-appropriate thresholds for emissions points in columns (c), (d), (e) and (f) of Table A, B or C of ch. NR 445. If the facility is a source of incidental emissions under s. NR 445.11, this subdivision only applies to emissions of air contaminants which are listed as substances of concern in Table E of ch. NR 445.

NR 407.03(1m)(a)2. 2. The facility is not subject to an emission limitation or emission standard under section 111 or 112 of the Act (42 USC 7411 or 7412) except for a source subject solely to regulations or requirements under section 112 (d) (5) or (r) of the Act (42 USC 7412 (d) (5) or (r)) or engine certified to meet the emission standards in 40 CFR part 60, subpart IIII or JJJJ for each fuel used.

NR 407.03(1m)(a)3. 3. The owner or operator conducts monitoring and maintains records sufficient to demonstrate compliance with the requirements of this paragraph, including the calculation of annual facility-wide emissions. These records shall be maintained on site for at least 5 years, unless a longer period is required by statute or rule.

NR 407.03(1m)(a)4. 4. If a control device is used to limit actual emissions, the owner or operator uses a compliance monitoring method which is identified in s. NR 439.055.

NR 407.03(1m)(b) (b) Any facility that is not required to submit an annual emission inventory report under s. NR 438.03 is exempt from the requirement to obtain an operation permit where all of the criteria and requirements in par. (a) 1. to 4. are met.

NR 407.03(1m)(c) (c)

NR 407.03(1m)(c)1. 1. The owner or operator of a facility required to submit an air emission inventory report under s. NR 438.03 shall notify the department of their intent to operate the facility under the exemption criteria in par. (a).

NR 407.03(1m)(c)2. 2. Any existing permit shall remain in effect until the permit is revoked or coverage under a general or registration permit is withdrawn. A notification under subd. 1. shall serve as a request for revocation of an individual permit or withdrawal from coverage under a general or registration permit.

NR 407.03(1m)(c)3. 3. A notification under subd. 1. shall serve as a request for withdrawal of any pending permit application.

NR 407.03 Note Note: An owner or operator exempt under this subsection is responsible for complying with all other applicable requirements in chs. NR 400 to 499.

NR 407.03(1s) (1s) Natural minor source exemption.

NR 407.03(1s)(a) (a) Eligibility. A facility that is a natural minor source is exempt from the requirement to obtain an operation permit.

NR 407.03(1s)(b) (b) Recordkeeping.

NR 407.03(1s)(b)1. 1. An owner or operator claiming to be exempt under this subsection shall maintain records adequate to show it meets all criteria under the definition of a natural minor source. Emission calculations adequate to determine eligibility with this exemption shall be maintained and made available to a department representative if requested.

NR 407.03(1s)(b)2. 2. In addition to monitoring and recordkeeping requirements contained in any construction permit issued to the source under ch. NR 406, the owner or operator shall maintain records sufficient to demonstrate compliance with all other applicable requirements in chs. NR 400 to 499.

NR 407.03(1s)(c) (c) Notification to the department.

NR 407.03(1s)(c)1. 1. An owner or operator claiming exemption under this subsection and who has an existing permit or who has submitted a permit application under this chapter or under ch. NR 406, shall notify the department of an intent to operate under this exemption.

NR 407.03(1s)(c)2. 2. Any existing permit issued under this chapter shall remain in effect until the permit is revoked or coverage under a general or registration permit is withdrawn at the request of the owner or operator.

NR 407.03(1s)(c)3. 3. A notification under subd. 1. shall serve as a request for revocation of any permits issued under this chapter and for withdrawal of any pending operation permit application submitted under this chapter.

NR 407.03(1s)(d) (d) Schedule. The owner or operator shall apply for an operation permit in accordance with the requirements of this chapter if any of the following affects the source’s ability to remain a natural minor source:

NR 407.03(1s)(d)1. 1. Any existing requirements change.

NR 407.03(1s)(d)2. 2. Any new requirements become applicable to the source.

NR 407.03(1s)(d)3. 3. Changes occur at the source.

NR 407.03(1s)(d)4. 4. Other emission information indicating that the source is not a natural minor source becomes available.

NR 407.03 Note Note: An owner or operator exempt under this subsection is responsible for complying with all applicable requirements in chs. NR 400 to 499, including construction permit requirements identified in ch. NR 406 and all conditions contained in a permit issued under ch. NR 406.

NR 407.03 Note Note: The exemption in this subsection does not preclude the owner or operator of a natural minor source from requesting, and the Department from issuing, an operation permit as allowed under s. 285.60 (2) (b), Stats.

NR 407.03 Note Note: The Small Business Environmental Assistance Program at dnr.wi.gov may be contacted for more information on applicability and compliance determinations related to the requirements in chs. NR 400 to 499.

NR 407.03(2) (2) General category of exempt sources. In addition to the specific categories of exempt sources identified in sub. (1), no operation permit is required for a direct source if the source is not a part 70 source or an affected source and all of the following requirements are met:

NR 407.03(2)(a) (a) The maximum theoretical emissions from the source for sulfur dioxide or carbon monoxide do not exceed 9.0 pounds per hour for each air contaminant.

NR 407.03(2)(b) (b) The maximum theoretical emissions from the source for particulate matter, nitrogen oxides or volatile organic compounds do not exceed 5.7 pounds per hour for each air contaminant.

NR 407.03(2)(ba) (ba) The maximum theoretical emissions from the source for PM10 do not exceed 3.4 pounds per hour.

NR 407.03(2)(be) (be) The maximum theoretical emissions from the source for PM2.5 do not exceed 2.2 pounds per hour.

NR 407.03(2)(bm) (bm) The maximum theoretical emissions from the source for lead do not exceed 0.13 pounds per hour.