Authority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11

Affected: IC 13-14-4-3; IC 13-15; IC 13-17

Sec. 5. (a) Tests for particulate matter (PM), PM10, and PM2.5 shall be conducted in accordance with the following procedures:

1. (1) For PM: 40 CFR 60, Appendix A, Method 5*, 5A*, 5B*, 5C*, 5D*, 5E*, or 5F*, or Method 17*, as applicable, or other procedures approved by the department and U.S. EPA.
2. (2) For PM10 and PM2.5: 40 CFR 51, Appendix M, Method 201* or 201A*, and 202*. The measurement of condensable PM10 using the procedures described in Method 202* is not required if the applicable emission limitation is contained at 326 IAC 6.8-2, unless otherwise specified by 326 IAC 6.5 or 326 IAC 6.8. 40 CFR 60, Appendix A, Method 5*, in conjunction with Method 202*, may also be used, subject to the approval of the department and U.S. EPA. Other procedures to measure PM10 and PM2.5 may be approved by the department and U.S. EPA.

3. (3) Visible emissions (VE) evaluations shall be performed in conjunction with a PM, PM10, PM2.5, or other mass emission rate test of air pollutants, as required by the department. The VE evaluations shall be conducted by a qualified observer in accordance with the procedures contained in 326 IAC 5-1-4. VE readings shall be continuously recorded for at least thirty (30) minutes per hour of sampling time for each sampling repetition, unless a longer time is otherwise mandated by federal regulation. A waiver from this requirement may be granted by the department or on-site department staff person if adverse conditions exist that would invalidate the VE readings. Complete waivers from the requirement to conduct VE readings during a compliance test may not be granted for the emissions unit required to complete opacity testing pursuant to 40 CFR 60.8* or 40 CFR 63*. VE readings are not required for units when operating a certified PM CEMS. Emissions units equipped with continuous opacity monitors may submit the six (6) minute integrated readings of the monitors during the sampling period, instead of performing VE evaluations, provided:

   1. (A) the monitoring system meets the performance specifications as specified in 40 CFR 60, Appendix B*, and is, or will be, certified by the department;
   2. (B) the monitor readings submitted with the test include a zero (0) and upscale calibration check before the first test run and following the end of the final run; and
   3. (C) if more than one (1) day of testing is required to complete the three (3) runs, the zero (0) and span checks shall be performed at the beginning of each day's testing and at the conclusion of each day's final run.
4. (4) At least three (3) repetitions of the test shall be performed under consistent emissions unit operating conditions unless otherwise allowed by the department. For boiler emissions testing, at least one (1) of the three (3) repetitions shall be conducted during a normal sootblowing cycle that is consistent with frequency and duration normally experienced.

5. (5) At Richmond Power and Light's Whitewater Generating Station, when sootblowing occurs during one (1) of the three (3) repetitions, emission test results shall be evaluated using either a time weighted averaging period (TWAP) or a straight averaging technique. When using TWAP, the following equation shall be used to ensure proper weighting of an intermittent cleaning cycle performance test run regardless of the length of the cleaning cycle and regardless of the number and duration of the test runs made on the unit. When using TWAP, the representative pounds per hour of particulate emissions shall be calculated using the following equation:

   Where:	E	=	Pounds per hour of particulate emissions.
   	Ecc	=	Average E of sample containing cleaning cycle.
   	Encc	=	Average E of sample containing no cleaning cycle.
   	A	=	Hours of cleaning cycle operation during sample.
   	B	=	Hours with no cleaning cycle operation during sample.
   	R	=	Average hours of operation per twenty-four (24) hours.
   	S	=	Average hours of cleaning cycle operation per twenty-four (24) hours.

6. (6) Only those fuels representative of normal fuel quality used during normal operations shall be combusted.
7. (7) During each repetition, each sampling point shall be sampled for a minimum of two (2) minutes.
8. (8) The total test time per repetition shall be no less than sixty (60) minutes.
9. (9) The total sample volume per repetition shall be no less than thirty (30) dry standard cubic feet (dscf).
10. (10) The total particulate weight collected from the sampling nozzle, probe, cyclone (if used), filter holder (front half), filter, connecting glassware, and, if required in subdivision (2), the impinger catch, shall be reported to the department.

(b) The owner or operator shall conduct sulfur dioxide (SO2) tests in accordance with the following procedures:

1. (1) 40 CFR 60, Appendix A, Method 6*, 6A*, 6C*, or 8*, as applicable, or other procedures approved by the department and U.S. EPA.
2. (2) At least three (3) repetitions of two (2) samples, each according to 40 CFR 60, Appendix A, Method 6* or 6A*, or three (3) repetitions according to 40 CFR 60, Appendix A, Method 6C* or 8*, performed under identical emissions unit operating conditions, shall constitute a test. For boiler emissions testing, only those fuels representative of fuel quality during normal operations shall be combusted.

3. (3) The total test time per repetition shall be as follows:

   1. (A) For tests using 40 CFR 60, Appendix A, Method 6* or 6A*, a minimum of twenty (20) minutes per run with a thirty (30) minute interval between each run.
   2. (B) For tests using 40 CFR 60, Appendix A, Method 6C*, a minimum of sixty (60) minutes per run.

   3. (C) For tests using 40 CFR 60, Appendix A, Method 8*, a minimum of sixty (60) minutes per run, with the following criteria:

      1. (i) During each of the repetitions, each sampling point shall be sampled for a minimum of two (2) minutes.
      2. (ii) The total sample volume per repetition shall be no less than forty (40) dry standard cubic feet (dscf).
      3. (iii) During each of the repetitions, the sample rate shall not exceed one (1) cubic foot per minute (cfm).

(c) The owner or operator shall conduct nitrogen oxide (NOx) tests according to the following procedures:

1. (1) 40 CFR 60, Appendix A, Method 7*, 7A*, 7B*, 7C*, or 7E*, as applicable, or other procedures approved by the department and U.S. EPA.
2. (2) For Methods 7*, 7A*, 7B*, or 7C*, at least three (3) repetitions of four (4) samples each shall constitute a test.
3. (3) For Method 7E*, three (3) test runs, each a minimum of sixty (60) minutes, shall constitute a test.

(d) The owner or operator shall conduct volatile organic compounds (VOC) emissions tests in accordance with the following procedures:

1. (1) 40 CFR 60, Appendix A, Method 25*, or other procedures approved by the department and U.S. EPA, shall be used for the total nonmethane organic emissions.
2. (2) At least three (3) samples shall be collected and analyzed.
3. (3) The total test time per repetition shall be a minimum of sixty (60) minutes.

4. (4) Bulk gasoline terminals subject to 326 IAC 20-10 shall be tested in accordance with 40 CFR 63, Subpart R*. All other bulk gasoline terminals shall be tested in accordance with the New Source Performance Standards (NSPS) at 40 CFR 60, Subpart XX*. During all compliance tests, 40 CFR 60, Appendix A, Method 21* shall be used for determining whether there are any leaks from the hatches or flanges of the gasoline transports. If any leak is detected, the transport shall not be used for the capacity of the compliance test of the bulk gasoline terminal. The threshold for leaks shall be as follows:

   1. (A) Five hundred (500) parts per million methane for all bulk gasoline terminals subject to 40 CFR 63, Subpart R*.
   2. (B) Ten thousand (10,000) parts per million (as methane) for all bulk gasoline terminals subject to 40 CFR 60, Subpart XX* and for all other bulk gasoline terminals.

*These documents are incorporated by reference. Copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.

(Air Pollution Control Division; 326 IAC 3-6-5; filed Jan 30, 1998, 4:00 p.m.: 21 IR 2074; errata filed Dec 12, 2002, 3:35 p.m.: 26 IR 1567; filed Aug 26, 2004, 11:30 a.m.: 28 IR 37; filed Aug 11, 2011, 1:54 p.m.: 20110907-IR-326050330FRA; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR-326230809RFA)