Section 326 IAC 3-5-5 - Quality assurance requirementsAuthority: 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) Except for affected units under 40 CFR 75 * that are also emissions units subject to this rule, quality assurance requirements specified in this section and 40 CFR 60 *, Appendix F, apply to continuous emission monitors that monitor the following: (1) Carbon dioxide (CO2).(2) Carbon monoxide (CO).(3) Hydrogen sulfide (H2S).(4) Nitrogen oxide (NOx).(6) Sulfur dioxide (SO2).(7) Total hydrocarbons (THC).(8) Total reduced sulfur (TRS).(9) Volatile organic compounds (VOC).(10) Particulate matter (PM).(b) Emissions units that are also subject to 40 CFR 75 * shall follow the quality assurance procedures of 40 CFR 75 * and report the results in accordance with subsection (f).(c) Quality control (QC) requirements for COMS are as follows: (1) For calibration drift (CD) assessment, the COMS shall be checked at least once daily. The CD shall be quantified and recorded at zero (0) (or low level) and upscale level opacity. The COMS shall be adjusted whenever the CD exceeds the specification of 40 CFR 60, Appendix B*, Performance Specification 1 (PS-1), and the COMS shall be declared out of control when the CD exceeds twice the specification of PS-1. Corrective actions, followed by a validating CD assessment, are required when the COMS is out of control.(2) For fault indicators assessment, the fault lamp indicators, data acquisition system error messages, and other system self-diagnostic indicators shall be checked at least daily. Appropriate corrective actions shall be taken when the COMS is operating outside the preset limits.(3) For performance audits, checks of the individual COMS components and factors affecting the accuracy of the monitoring data, as described in this subdivision, shall be conducted, at a minimum, on a calendar quarter basis. The absolute minimum checks included in the performance audit are as follows:(A) The status of the optical alignment of the monitor components shall be checked and recorded according to the procedure specified by the monitor manufacturer. Monitor components must be realigned as necessary.(B) The apparent effluent opacity shall be compared and recorded before and after cleaning each of the exposed optical surfaces. The total optical surface dust accumulation shall be determined by summing up the apparent reductions in opacity for all of the optical surfaces that are cleaned.(C) The zero (0) and upscale response errors shall be determined and recorded according to the CD procedures. The errors are defined as the difference (in percent opacity) between the correct value and the observed value for the zero (0) and high level calibration checks.(D) The value of the zero (0) compensation applied at the time of the audit shall be calculated as equivalent opacity, corrected to stack exit conditions, according to the procedures specified by the manufacturer. The compensation applied to the effluent recorded by the monitor system shall be recorded.(E) The optical pathlength correction ratio (OPLR) shall be computed from the monitor pathlength and stack exit diameter and shall be compared, and the difference recorded, to the monitor setup OPLR value. The stack exit correlation error shall be determined as the absolute value of the difference between the measured value and the correct value, expressed as a percentage of the correct value.(F) A three-point calibration error test of the COMS shall be conducted. Three (3) neutral density filters meeting the requirements of PS-1 shall be placed in the COMS light beam path. The monitor response shall be independently recorded from the COMS permanent data recorder. A total of five (5) nonconsecutive readings for each filter shall be made. The low-range, mid-range, and high-range calibration error results shall be computed as the mean difference and ninety-five percent (95%) confidence interval for the difference between the expected and the actual responses of the monitor as corrected to stack exit conditions. These values shall be calculated using the procedure of PS-1, Section 8.0. The following are requirements for these values:(i) The calibration error test requires the installation of an external calibration audit device (zero-jig). The zero-jig shall be adjusted to provide the same zero (0) response as the monitor's simulated zero (0).(ii) Use calibration attenuators, that is, neutral density filters or screens, with values that have been determined according to PS-1, Section 7.1.3, "Attenuator Calibration", and produce simulated opacities (as corrected to stack exit conditions) in the ranges listed in Table 1-2 in PS-1.(iii) The stability of the attenuator values shall be checked at least once per year according to the procedures specified in PS-1. The attenuators shall be recalibrated if the stability checks indicate a change of two percent (2%) opacity or greater.(4) The following are requirements for monitor acceptance criteria:(A) The following criteria are to be used to determine if the COMS audit results are acceptable: TABLE 1. PERFORMANCE AUDIT CRITERIA
| Stack Exit Correlation Error | <= 2 percent |
| Zero and Upscale Responses | <= 2 percent opacity |
| Zero Compensation | <= 4 percent opacity |
| Optical Alignment | Misalignment error |
| <= 2 percent opacity |
| Optical Surface Dust Accumulation | <= 4 percent opacity |
| Calibration Error | <= 3 percent opacity |
(B) The COMS is out of control whenever the results of a quarterly performance audit indicate noncompliance with any of the performance assessment criteria of Table 1 in clause (A). If the COMS is out of control, the owner or operator shall take the action necessary to eliminate the problem. Following corrective action, the source or emissions unit owner or operator shall reconduct the appropriate failed portion of the audit and other applicable portions to determine whether the COMS is operating properly and within specifications. The COMS owner or operator shall record both audit results showing the COMS to be out of control and the results following corrective action.(C) Repeated audit failures, that is, out of control conditions revealed in the quarterly audits, indicate that the QC procedures are inadequate or the COMS is incapable of providing quality data. The source or emissions unit owner or operator shall: (i) increase the frequency of the QC procedures in this subsection until the performance criteria are maintained; or(ii) modify or replace the COMS whenever two (2) consecutive quarters of unacceptable performance occur.(5) The performance audit calculations contained in PS-1, Section 8 shall be followed.(d) Except where 40 CFR 75 * is applicable for affected emissions units under the acid rain program, quality control requirements for flow monitoring systems are as follows:(1) For CD assessment, the flow monitoring system shall be checked at least once daily. The CD shall be quantified and recorded at zero (0) (or low level) and upscale level. The flow monitoring systems shall be adjusted whenever the CD exceeds the specification of 40 CFR 60, Appendix B, Performance Specification 6 (PS-6)*, and the flow monitoring systems shall be declared out of control when the CD exceeds twice the specification of PS-6. Corrective actions, followed by a validating CD assessment, are required when the flow monitoring system is out of control.(2) An annual relative accuracy test.(e) The owner or operator of a peaking unit, as defined in 326 IAC 3-4-1(13), shall conduct a relative accuracy test audit (RATA) on any required CEMS as specified in 40 CFR 60, Appendix F* or as follows: (1) For each primary and redundant backup monitoring system and each sorbent trap monitoring system, RATAs shall be performed once every four (4) successive QA operating quarters.(2) A calendar quarter that does not qualify as a QA operating quarter shall be excluded in determining the deadline for the next RATA.(3) Not more than eight (8) successive calendar quarters shall elapse after the quarter in which a RATA was last performed without a subsequent RATA having been conducted.(4) If a RATA has not been completed by the end of the eighth calendar quarter since the quarter of the last RATA, then the RATA must be completed within a seven hundred twenty (720) unit, or stack, operating hour grace period, as provided in 40 CFR 75, Appendix B, Section 2.3.3,* following the end of the eighth successive elapsed calendar quarter, or data from the CEMS will become invalid.(f) Reporting requirements for performance audits are as follows: (1) Owners or operators of emissions units required to conduct: (B) relative accuracy test audit; or(C) continuous opacity monitor calibration error audit; on continuous emission monitors shall prepare a written report of the results of the performance audit for each calendar quarter, or for other periods required by the department. The owner or operator shall submit quarterly reports to the department within thirty (30) calendar days after the end of each quarter for cylinder gas audits and continuous opacity monitor calibration error audits and within forty-five (45) calendar days after the completion of the test for relative accuracy test audits.
(2) The performance audit report shall contain the following information:(A) Plant and monitor information, including the following: (i) The plant name and address.(ii) The monitor brand or manufacturer's name, model, and serial number.(iv) The monitor location. (B) Performance audit information, including the following:(ii) A copy of the audit standard's certification.(iii) All data used to calculate the audit results.(iv) The audit results and an indication if the monitor passed or failed the audit. If the performance audit results show the CEMS or COMS to be out of control, the CEMS or COMS owner or operator shall report both the audit results showing the CEMS or COMS to be out of control and the results of the audit following corrective action showing the COMS to be operating within specification.(v) Any corrective actions performed as the result of a failed audit.(g) Whenever a relative accuracy test audit of any continuous emission monitor listed in subsection (a) or (e) is performed, the department must be notified in accordance with the protocol requirements of 326 IAC 3-6-2 at least thirty-five (35) days prior to the audit. *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 Board; 326 IAC 3-5-5; filed Jan 30, 1998, 4:00 p.m.: 21 IR 2069; errata filed Dec 12, 2002, 3:35 p.m.: 26 IR 1567; filed Aug 26, 2004, 11:30 a.m.: 28 IR 34; filed Aug 11, 2011, 1:54 p.m.: 20110907-IR-326050330FRA