1. (a) The owner or operator of a HMIWI unit that is equipped with an air pollution control device shall be subject to the compliance requirements and operating parameters set forth in this section.

2. (b) The following equipment, when installed on a HMIWI unit, shall qualify as an air pollution control device:

   1. (1) A dry scrubber followed by a fabric filter;
   2. (2) A wet scrubber; or
   3. (3) A dry scrubber followed by a fabric filter and wet scrubber.

3. (c) The owner or operator of each HMIWI unit equipped with an air pollution control device as described in (b), above, shall:

   1. (1) Establish the appropriate maximum and minimum operating parameters, in accordance with Table 3500-4, for each control system, as site-specific operating parameters during the initial performance test to determine compliance with the emission limits set forth in Env-A 3505; and
   2. (2) Following the date the initial performance test is completed or is required to be completed, whichever date comes first, ensure the unit does not operate above any of the applicable maximum operating parameters or below any of the minimum operating parameters listed in Table 3500-4, measured as 3-hour rolling averages, calculated each hour as the average of the previous 3 operating hours, at all times except during startup, shutdown, malfunction, and during performance tests.
4. (d) For HMIWI units that are equipped with an air pollution control device as described in (b), above, operation above or below established maximum or minimum operating parameters, respectively, shall constitute violation of established operating parameters.

5. (e) For HMIWI units equipped with an air pollution control device as described in (b)(1), above, the following methods of operation shall constitute violation of the applicable emission limits:

   1. (1) For carbon monoxide, operating above the maximum charge rate and below the minimum secondary chamber temperature, simultaneously, both measured on a 3-hour rolling average;
   2. (2) For dioxins/furans, operating above the maximum fabric filter inlet temperature, above the maximum charge rate and below the minimum dioxin/furan sorbent flow rate, simultaneously, each measured on a 3-hour rolling average;
   3. (3) For hydrogen chloride, operating above the maximum charge rate and below the minimum hydrogen chloride sorbent flow rate, simultaneously, both measured on a 3-hour rolling average;
   4. (4) For mercury, operating above the maximum charge rate and below the minimum mercury sorbent flow rate, simultaneously, both measured on a 3-hour rolling average; or
   5. (5) For particulate matter, dioxins/furans, hydrogen chloride, lead, cadmium, and mercury, use of a bypass stack except during periods of startup, shutdown, or malfunction.

6. (f) For HMIWI units equipped with an air pollution control device as described in (b)(2), above, the following methods of operation shall constitute violation of the applicable emission limits:

   1. (1) For particulate matter, operation above the maximum charge rate and below the pressure drop across the wet scrubber or below the minimum horsepower or amperage to the system, simultaneously, each measured on a 3-hour rolling average;
   2. (2) For carbon monoxide, operation above the maximum charge rate and below the minimum secondary chamber temperature, simultaneously, both measured as a 3 hour rolling average;
   3. (3) For dioxins/furans, operation above the maximum charge rate, below the minimum secondary chamber temperature, and below the minimum scrubber flow rate, simultaneously, each measured on a 3-hour rolling average;
   4. (4) For hydrogen chloride, operation above the maximum charge rate and below the minimum scrubber liquor pH, simultaneously, both measured on a 3-hour rolling average;
   5. (5) For mercury, operation above the maximum flue gas temperature and above the maximum charge rate, simultaneously, both measured on a 3-hour rolling average; or
   6. (6) For particulate matter, dioxins/furans, hydrogen chloride, lead, cadmium, and mercury, use of a bypass stack except during periods of startup, shutdown, or malfunction.

7. (g) For HMIWI units equipped with an air pollution control device as described in (b)(3), above, the following methods of operation shall constitute violation of the applicable emission limits:

   1. (1) For carbon monoxide, operation above the maximum charge rate and below the minimum secondary chamber temperature, simultaneously, both measured on a 3-hour rolling average;
   2. (2) For dioxins/furans, operation above the maximum fabric filter inlet temperature, above the maximum charge rate, and below the minimum dioxins/furans sorbent flow rate, simultaneously, each measured as a 3-hour rolling average;
   3. (3) For hydrogen chloride, operation above the maximum charge rate and below the minimum scrubber liquor pH, simultaneously, both measured as a 3-hour rolling average;
   4. (4) For mercury, operation above the maximum charge rate and below the minimum mercury sorbent flow rate, simultaneously, both measured as a 3-hour rolling average; or
   5. (5) For particulate matter, dioxins/furans, hydrogen chloride, lead, cadmium, and mercury, use of a bypass stack except during periods of startup, shutdown, or malfunction.
8. (h) The owner or operator of a HMIWI unit shall conduct a repeat performance test within 30 days of violation of an applicable operating parameter(s) to demonstrate that the HMIWI unit is not in violation of the applicable emission limit(s). Repeat performance tests conducted pursuant to this paragraph shall be conducted using the identical operating parameters that indicated a violation under this part.

9. (i) The owner or operator of a HMIWI unit using an air pollution control device other than those devices listed in (b), above, to comply with Env-A 3505 emission limits shall request other site-specific operating parameters to be established during the initial performance test and continuously monitored thereafter by submitting the following information in writing to the department:

   1. (1) The identity and description of the facility, including the devices controlled with the air pollution control device;
   2. (2) The proposed alternative operating parameters to be monitored; and
   3. (3) Technical data and information demonstrating that the operating parameters requested to be monitored are as sufficient in monitoring operation of the alternative air pollution control device as those monitoring parameters used to monitor operation of the air pollution control devices listed in (b), above.
10. (j) The department shall approve a request submitted pursuant to (i), above, if the proposed alternative site-specific operating parameters are as sufficient in monitoring operation of the alternative air pollution control device as those monitoring parameters used to monitor operation of the air pollution control devices listed in (b), above.

11. (k) The department shall deny a request submitted pursuant to (i), above, if:

    1. (1) The owner or operator fails to provide complete and accurate information; or
    2. (2) The proposed alternative site-specific operating parameters fail to meet the criteria specified in (k), above.
    3. (m) The owner or operator submitting a request to the department pursuant to (i), above, shall not conduct an initial performance test until after the request has been approved by the department.
    4. (n) The owner or operator of a HMIWI unit who submitted a request pursuant to (i), above, may conduct a repeat performance test at any time to establish new values for the operating parameters.

    5. (o) Minimum and maximum operating parameters as required in (c), above, shall be as specified in Table 3500-4, as follows:

       TABLE 3500-4: OPERATING PARAMETERS TO BE MONITORED AND

       MINIMUM MEASUREMENT AND RECORDING FREQUENCIES

       Operating parameters to be monitored

       Minimum frequency

       Control system

       Data measurement

       Data recording

       Dry scrubber followed by fabric filter

       Wet scrubber

       Dry scrubber followed by fabric filter and wet scrubber

       Maximum operating parameters

       Maximum charge rate

       continuous

       once per hour

       3

       3

       3

       Maximum fabric filter inlet temperature

       continuous

       once per minute

       3

       3

       Maximum flue gas temperature

       continuous

       once per minute

       3

       3

       Minimum operating parameters

       Minimum secondary chamber temperature

       continuous

       once per minute

       3

       3

       3

       Minimum dioxin/furan sorbent flow rate

       hourly

       once per hour

       3

       3

       Minimum HCl sorbent flow rate

       hourly

       once per hour

       3

       3

       Minimum mercury (Hg) sorbent flow rate

       hourly

       once per hour

       3

       3

       Minimum pressure drop across the wet scrubber or minimum horsepower or amperage to wet scrubber

       continuous

       once per minute

       3

       3

       Minimum scrubber liquor flow rate

       continuous

       once per minute

       3

       3

       Minimum scrubber liquor pH

       continuous

       once per minute

       3

       3

Source. #6938, eff 1-30-99; ss by #8788, eff 1-5-07