NR 440.76 NoteNote: The data obtained from your continuous opacity monitoring system are not used to determine compliance with the limit on opacity emissions.
NR 440.76(13)(k)2.2. If the results of your annual stack tests, as recorded in sub. (12) (e) 1., show emissions above the limits specified in Table 1 of this section for dioxins/furans, cadmium, lead, mercury, particulate matter, opacity, hydrogen chloride or fugitive ash, include a copy of the test report that documents the emission levels and your corrective actions. NR 440.76(13)(k)3.3. For municipal waste combustion units that apply activated carbon to control dioxins/furans or mercury emissions, include the following 2 items: NR 440.76(13)(k)3.a.a. Documentation of all dates when the 8-hour block average carbon feed rate, calculated from the carbon injection system operating parameter, is less than the highest carbon feed rate established during the most recent mercury or dioxins/furans stack test, as specified in sub. (12) (g) 1. a. Include the following 4 items: 1) Eight-hour average carbon feed rate.
2) Reasons for occurrences of low carbon feed rates.
3) The corrective actions you have taken to meet the carbon feed rate requirement.
4) The calendar date.
NR 440.76(13)(k)3.b.b. Documentation of each quarter when total carbon purchased and delivered to the municipal waste combustion plant is less than the total required quarterly usage of carbon. If you choose to evaluate total carbon purchased and delivered on a municipal waste combustion unit basis, record the total carbon purchased and delivered for each individual municipal waste combustion unit at your plant. Include the following 5 items: 1) Amount of carbon purchased and delivered to the plant.
2) Required quarterly usage of carbon.
3) Reasons for not meeting the required quarterly usage of carbon.
4) The corrective actions you have taken to meet the required quarterly usage of carbon.
5) The calendar date.
NR 440.76(13)(L)1.1. If the department agrees, you may change the semiannual or annual reporting dates. NR 440.76(14)(14) Air curtain incinerators that burn 100% yard waste. NR 440.76(14)(a)(a) What are the emission limits for air curtain incinerators that burn 100% yard waste? If your air curtain incinerator combusts 100% yard waste, only the emission limits in this subsection apply. NR 440.76(14)(a)1.1. Within 60 days after your air curtain incinerator reaches the maximum load level at which it will operate, but no later than 180 days after its initial startup, you shall meet the following 2 limits: NR 440.76(14)(a)1.a.a. The opacity limit is 10% (6-minute average) for air curtain incinerators that can combust at least 35 tons per day of municipal solid waste and no more than 250 tons per day of municipal solid waste. NR 440.76(14)(a)1.b.b. The opacity limit is 35% (6-minute average) during the startup period that is within the first 30 minutes of operation. NR 440.76(14)(a)2.2. Except during malfunctions, the requirements of this subsection apply at all times. Each malfunction may not exceed 3 hours. NR 440.76(14)(b)(b) How must I monitor opacity for air curtain incinerators that burn 100% yard waste? NR 440.76(14)(b)3.3. After the initial test for opacity, you shall conduct annual tests no later than 13 calendar months following the date of your previous test. NR 440.76(14)(c)(c) What are the recordkeeping and reporting requirements for air curtain incinerators that burn 100% yard waste? NR 440.76(14)(c)1.1. You shall provide a notice of construction that includes the following 4 items: NR 440.76(14)(c)2.2. You shall keep records of results of all opacity tests onsite in either paper copy or electronic format unless the department approves another format. NR 440.76(14)(c)3.3. You shall keep all records for each incinerator for at least 5 years. NR 440.76(14)(c)4.4. You shall make all records available for submittal to the department or for onsite review by an inspector. NR 440.76(14)(c)5.5. You shall submit the results (each 6-minute average) of the opacity tests by February 1 of the year following the year of the opacity emission test. NR 440.76(14)(c)6.6. You shall submit reports as a paper copy on or before the applicable submittal date. If the department agrees, you may submit reports on electronic media. NR 440.76(15)(a)(a) Concentration correction to 7% oxygen. You shall correct any pollutant concentration to 7% oxygen using the following equation: where:
C7% is the concentration corrected to 7% oxygen
Cunc is the uncorrected pollutant concentration
O2 is the concentration of oxygen, percent
NR 440.76(15)(b)(b) Percent reduction in potential mercury emissions. You shall calculate the percent reduction in potential mercury emissions (%PHg) using the following equation: where:
%PHg is the percent reduction of potential mercury emissions
Ei is the mercury emission concentration as measured at the air pollution control device inlet, corrected to 7% oxygen, dry basis
Eo is the mercury emission concentration as measured at the air pollution control device outlet, corrected to 7% oxygen, dry basis
NR 440.76(15)(c)(c) Percent reduction in potential hydrogen chloride emissions. You shall calculate the percent reduction in potential hydrogen chloride emissions (%PHCl) using the following equation: where:
%PHCl is the percent reduction of the potential hydrogen chloride emissions
Ei is the hydrogen chloride emission concentration as measured at the air pollution control device inlet, corrected to 7% oxygen, dry basis
Eo is the hydrogen chloride emission concentration as measured at the air pollution control device outlet, corrected to 7% oxygen, dry basis
NR 440.76(15)(d)(d) Capacity of a municipal waste combustion unit. For a municipal waste combustion unit that can operate continuously for 24-hour periods, you shall calculate the municipal waste combustion unit capacity based on 24 hours of operation at the maximum charge rate. To determine the maximum charge rate, use one of the following 2 methods: NR 440.76(15)(d)1.1. For municipal waste combustion units with a design based on heat input capacity, you shall calculate the maximum charging rate based on the maximum heat input capacity and one of the following 2 heating values: NR 440.76(15)(d)1.a.a. If your municipal waste combustion unit combusts refuse-derived fuel, use a heating value of 12,800 kilojoules per kilogram (5,500 Btu per pound). NR 440.76(15)(d)1.b.b. If your municipal waste combustion unit combusts municipal solid waste, use a heating value of 10,500 kilojoules per kilogram (4,500 Btu per pound). NR 440.76(15)(d)2.2. For municipal waste combustion units with a design not based on heat input capacity, you shall use the maximum designed charging rate. NR 440.76(15)(e)(e) Capacity of a batch municipal waste combustion unit. You shall calculate the capacity of a batch municipal waste combustion unit as the maximum design amount of municipal solid waste that can be charged per batch multiplied by the maximum number of batches that can be processed in 24 hours. Calculate the maximum number of batches by dividing 24 by the number of hours needed to process one batch. Retain fractional batches in the calculation. For example, if one batch requires 16 hours, the municipal waste combustion unit can combust 24/16, or 1.5 batches, in 24 hours. NR 440.76(15)(f)(f) Quarterly carbon usage. If you use activated carbon to comply with the dioxins/furans or mercury limits, you shall calculate the required quarterly usage of carbon using the equation in subd. 1. for plant basis or the equation in subd. 2. for unit basis. where:
C is the required quarterly carbon usage for the plant in kilograms or pounds
fi is the required carbon feed rate for the municipal waste combustion unit in kilograms or pounds per hour. The required carbon feed rate is the average carbon feed rate during the most recent mercury or dioxins/furans stack tests, whichever has a higher feed rate.
hi is the number of hours the municipal waste combustion unit was in operation during the calendar quarter.
n is the number of municipal waste combustion units, i, located at your plant.
where:
C is the required quarterly carbon usage for the unit in kilograms or pounds.
f is the required carbon feed rate for the municipal waste combustion unit in kilograms or pounds per hour. The required carbon feed rate is the average carbon feed rate during the most recent mercury or dioxins/furans stack tests, whichever has a higher feed rate.
h = number of hours the municipal waste combustion unit was in operation during the calendar quarter.
a All emission limits, except for opacity, are measured at 7% oxygen.
b Class I units mean small municipal waste combustion units subject to this section that are located at municipal waste combustion plants with an aggregate plant combustion capacity of more than 250 tons per day of municipal solid waste. See sub. (2) for definitions.
c Class II units mean small municipal waste combustion units subject to this section that are located at municipal waste combustion plants with an aggregate plant combustion capacity of no more than 250 tons per day of municipal solid waste. See sub. (2) for definitions.
d No monitoring, testing, recordkeeping or reporting is required to demonstrate compliance with the nitrogen oxides limit for Class II units.
a All limits, except for opacity, are measured at 7% oxygen. Compliance is determined by continuous emission monitoring systems
b Block averages, arithmetic mean. See sub. (2) for definitions.
c 24-hour block average, geometric mean. See sub. (2) for definitions.
