You must comply with the requirements in paragraphs (a) through (h) of this section, as applicable. If you own or operate a very small municipal waste combustion unit or institutional waste incineration unit using the substitute means of compliance demonstration under § 60.3032, the references in this section to the most recent performance test demonstrating compliance are not applicable and instead, refer to the limits established during the representative performance test identified in the information submitted as specified in § 60.3032(b).

(a) You must establish a maximum charge rate, calculated using the procedures in paragraph (a)(1) or (2) of this section, as appropriate.

(1) For continuous and intermittent units, maximum charge rate is the average charge rate measured during the most recent performance test demonstrating compliance with all applicable emission limitations.

(2) For batch units, maximum charge rate is the charge rate measured during the most recent performance test demonstrating compliance with all applicable emission limitations.

(b) You must establish a minimum combustion chamber operating temperature equal to the lowest 1-hour average combustion chamber operating temperature measured during the most recent performance test demonstrating compliance with all applicable emission limitations.

(c) If you use a wet scrubber to comply with the emission limitations, you must establish operating limits for the operating parameters as described in paragraphs (c)(1) through (3) of this section.

(1) Minimum pressure drop across the wet scrubber, which is calculated as the lowest 1-hour average pressure drop across the wet scrubber measured during the most recent performance test demonstrating compliance with the particulate matter emission limitations; or minimum amperage to the wet scrubber, which is calculated as the average amperage to the wet scrubber measured during the most recent performance test demonstrating compliance with the particulate matter emission limitations.

(2) Minimum scrubber liquor flow rate, which is calculated as the lowest 1-hour average liquor flow rate at the inlet to the wet scrubber measured during the most recent performance test demonstrating compliance with all applicable emission limitations.

(3) Minimum scrubber liquor pH, which is calculated as the lowest 1-hour average liquor pH at the outlet to the wet scrubber measured during the most recent performance test demonstrating compliance with the hydrogen chloride and sulfur dioxide emission limitations.

(d) If you use a dry scrubber to comply with the emission limitations, you must measure the injection rate of each sorbent during the performance test. The minimum operating limit for the injection rate of each sorbent is calculated as the lowest 1-hour average injection rate for each sorbent measured during the most recent performance test demonstrating compliance with the hydrogen chloride emission limitations.

(e) If you use an electrostatic precipitator to comply with the emission limitations, you must measure the (secondary) voltage and amperage of the electrostatic precipitator collection plates during the particulate matter performance test. Calculate the average electric power value (secondary voltage × secondary current = secondary electric power) for each test run. The minimum operating limit for the electrostatic precipitator is calculated as the lowest 1-hour average secondary electric power measured during the most recent performance test demonstrating compliance with the particulate matter emission limitations.

(f) If you use a fabric filter to comply with the emission limitations, you must operate each fabric filter system such that the bag leak detection system alarm does not sound more than 5 percent of the operating time during a 6-month period. Calculate the alarm time (i.e., time that the alarm sounds) as specified in paragraphs (f)(1) and (2) of this section.

(1) If inspection of the fabric filter demonstrates that no corrective action is required, the alarm duration is not counted in the alarm time calculation.

(2) If corrective action is required and you take less than an hour to initiate corrective action, the alarm time is counted as 1 hour. If you take longer than 1 hour to initiate corrective action, the alarm time is counted as the actual amount of time taken to initiate corrective action.

(g) If you own or operate a very small municipal waste combustion unit or institutional waste incineration unit with capacity less than or equal to 10 tons per day and you demonstrate continuous compliance according to § 60.3033(d), you must establish the amount of waste burned in each waste category as a percentage of total waste burned on a mass basis. These percentages are your waste profile and must be based on the categories of waste fed to the incinerator (e.g., food waste, paper waste, wood waste) during the most recent performance test.

(h) You must meet the operating limits established during the initial or representative performance test no later than the date specified in paragraph (h)(1) or (2) of this section, as applicable.

(1) For each OSWI unit with a capacity greater than 10 tons per day or for each very small municipal waste combustion unit or institutional waste incineration unit with a capacity less than or equal to 10 tons per day for which you conduct an initial performance test under § 60.3030(a), beginning on the date 180 days after your final compliance date in table 1 to this subpart.

(2) For each very small municipal waste combustion unit or institutional waste incineration unit for which you use the substitute means of compliance demonstration under § 60.3032, by the date you submit to the Administrator the information required in § 60.3032(b).

[90 FR 27958, June 30, 2025]