NR 666.107(7)(7)Dispersion modeling. Dispersion modeling shall be conducted according to s. NR 666.106 (8).
NR 666.107(8)(8)Enforcement. For the purposes of license enforcement, compliance with the operating requirements specified in the license (under s. NR 666.102) shall be regarded as compliance with this section. However, evidence that compliance with those license conditions is insufficient to ensure compliance with this section may be information justifying modification or revocation and re-issuance of a license under s. NR 670.041.
NR 666.107 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; corrections in (2) (a), (b), (3) (b), (5) made under s. 13.92 (4) (b) 7., Stats., Register March 2013 No. 687.
NR 666.108NR 666.108Small quantity on-site burner exemption.
NR 666.108(1)(1)Exempt quantities. Owners and operators of facilities that burn hazardous waste in a non-site boiler or industrial furnace are exempt from this subchapter if all of the following conditions are met:
NR 666.108(1)(a)(a) The quantity of hazardous waste burned in a device for a calendar month does not exceed the limits provided in the following table based on the terrain-adjusted effective stack height as defined in s. NR 666.106 (2) (c).
- See PDF for table PDF
NR 666.108(1)(b)(b) The maximum hazardous waste firing rate does not exceed at any time one percent of the total fuel requirements for the device (hazardous waste plus other fuel) on a total heat input or mass input basis, whichever results in the lower mass feed rate of hazardous waste.
NR 666.108(1)(c)(c) The hazardous waste has a minimum heating value of 5,000 Btu/lb, as generated.
NR 666.108(1)(d)(d) The hazardous waste fuel does not contain (and is not derived from) EPA hazardous waste numbers F020, F021, F022, F023, F026 or F027.
NR 666.108(2)(2)Mixing with nonhazardous fuels. If hazardous waste fuel is mixed with a nonhazardous fuel, the quantity of hazardous waste before such mixing is used to comply with sub. (1).
NR 666.108(3)(3)Multiple stacks. If an owner or operator burns hazardous waste in more than one on-site boiler or industrial furnace exempt under this section, the quantity limits provided by sub. (1) (a) are implemented according to the following equation:
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å
=
where:
n means the number of stacks.
Actual Quantity Burned means the waste quantity burned per month in device “i”.
Allowable Quantity Burned means the maximum allowable exempt quantity for stack “i” from the table in sub. (1) (a).
NR 666.108 NoteNote: Hazardous wastes that are subject to the special requirements for small quantity generators under ss. NR 662.013 and 662.016 may be burned in an off-site device under the exemption provided by this section, but shall be included in the quantity determination for the exemption.
NR 666.108(4)(4)Notification requirements. The owner or operator of facilities qualifying for the small quantity burner exemption under this section shall provide a one-time signed, written notice to the department indicating all of the following:
NR 666.108(4)(a)(a) The combustion unit is operating as a small quantity burner of hazardous waste.
NR 666.108(4)(b)(b) The owner and operator are in compliance with this section.
NR 666.108(4)(c)(c) The maximum quantity of hazardous waste that the facility may burn per month as provided by sub. (1) (a).
NR 666.108(5)(5)Recordkeeping requirements. The owner or operator shall maintain at the facility for at least 3 years sufficient records documenting compliance with the hazardous waste quantity, firing rate and heating value limits of this section. At a minimum, these records shall indicate the quantity of hazardous waste and other fuel burned in each unit per calendar month, and the heating value of the hazardous waste.
NR 666.108 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.
NR 666.109NR 666.109Low risk waste exemption.
NR 666.109(1)(1)Waiver of DRE standard. The DRE standard of s. NR 666.104 (1) does not apply if the boiler or industrial furnace is operated in conformance with par. (a) and the owner or operator demonstrates by procedures prescribed in par. (b) that the burning will not result in unacceptable adverse health effects.
NR 666.109(1)(a)(a) The device shall be operated with all of the following conditions:
NR 666.109(1)(a)1.1. A minimum of 50% of fuel fired to the device shall be fossil fuel, fuels derived from fossil fuel, tall oil, or, if approved by the department on a case-by-case basis, other nonhazardous fuel with combustion characteristics comparable to fossil fuel. Such fuels are termed primary fuel for purposes of this section. (Tall oil is a fuel derived from vegetable and rosin fatty acids.) The 50% primary fuel firing rate shall be determined on a total heat or mass input basis, whichever results in the greater mass feed rate of primary fuel fired.
NR 666.109(1)(a)2.2. Primary fuels and hazardous waste fuels shall have a minimum as-fired heating value of 8,000 Btu/lb.