Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 217 - NITROGEN OXIDES EMISSIONS › Subpart D - NO[x] GENERAL REQUIREMENTS › Section 217.157 - Testing and Monitoring

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Industrial Boilers and Process Heaters
1) The
				owner or operator of an industrial boiler subject to Subpart E of this Part
				with a rated heat input capacity greater than 250 mmBtu/hr must install,
				calibrate, maintain, and operate a continuous emissions monitoring system on
				the emission unit for the measurement of NOx emissions
				discharged into the atmosphere in accordance with 40 CFR 75, as incorporated by
				reference in Section
				217.104.
				However, the owner or operator of an industrial boiler subject to Subpart E of
				this Part with a rated heat input capacity greater than 250 mmBtu/hr that
				combusts blast furnace gas with up to 10% natural gas on an annual basis and
				located at a source that manufactures iron and steel is not required to
				install, calibrate, maintain, and operate a continuous emissions monitoring
				system on that industrial boiler, provided the heat input from natural gas does
				not exceed 10% on an annual basis and the owner or operator complies with the
				performance test requirements under this Section and demonstrates, during each
				performance test, that NOx emissions from the industrial
				boiler are less than 70% of the applicable emissions limitation under Section
				217.164. In
				the event the owner or operator is unable to meet the requirements of this
				exception, a continuous emissions monitoring system is required within 12
				months after that event, or by January 1, 2015, whichever is later.
2) The owner or operator of an industrial
				boiler subject to Subpart E of this Part with a rated heat input capacity
				greater than 100 mmBtu/hr but less than or equal to 250 mmBtu/hr must install,
				calibrate, maintain, and operate a continuous emissions monitoring system on
				such emission unit for the measurement of NOx emissions
				discharged into the atmosphere in accordance with 40 CFR 60, subpart A and
				appendix B, Performance Specifications 2 and 3, and appendix F, Quality
				Assurance Procedures, as incorporated by reference in Section
				217.104.
3) The owner or operator
				of a process heater subject to Subpart F of this Part with a rated heat input
				capacity greater than 100 mmBtu/hr must install, calibrate, maintain, and
				operate a continuous emissions monitoring system on the emission unit for the
				measurement of NOx emissions discharged into the
				atmosphere in accordance with 40 CFR 60, subpart A and appendix B, Performance
				Specifications 2 and 3, and appendix F, Quality Assurance Procedures, as
				incorporated by reference in Section 217.104.
4) If demonstrating compliance through an
				emissions averaging plan, the owner or operator of an industrial boiler subject
				to Subpart E of this Part, or a process heater subject to Subpart F of this
				Part, with a rated heat input capacity less than or equal to 100 mmBtu/hr and
				not demonstrating compliance through a continuous emissions monitoring system
				must have an initial performance test conducted pursuant to subsection
				(a)(4)(B) of this Section and Section
				217.154.
A) An owner or operator of an industrial
				boiler or process heater must have subsequent performance tests conducted
				pursuant to subsection (a)(4)(B) of this Section at least once every five
				years. When, in the opinion of the Agency or USEPA, it is necessary to conduct
				testing to demonstrate compliance with Section
				217.164 or
				217.184, as
				applicable, the owner or operator of an industrial boiler or process heater
				must, at his or her own expense, have such test conducted in accordance with
				the applicable test methods and procedures specified in this Section within 90
				days after receipt of a notice to test from the Agency or USEPA.
B) The owner or operator of an industrial
				boiler or process heater must have a performance test conducted using 40 CFR
				60, subpart A and appendix A, Method 1, 2, 3, 4, 7E, or 19, as incorporated by
				reference in Section 217.104, or other alternative USEPA methods approved by
				the Agency. Each performance test must consist of three separate runs, each
				lasting a minimum of 60 minutes. NOx emissions must be
				measured while the industrial boiler is operating at maximum operating capacity
				or while the process heater is operating at normal maximum load. If the
				industrial boiler or process heater has combusted more than one type of fuel in
				the prior year, a separate performance test is required for each fuel. If a
				combination of fuels is typically used, a performance test may be conducted,
				with Agency approval, on such combination of fuels typically used. Except as
				provided under subsection (e) of this Section, this subsection (a)(4)(B) does
				not apply if such owner or operator is demonstrating compliance with an
				emissions limitation through a continuous emissions monitoring system under
				subsection (a)(1), (a)(2), (a)(3), or (a)(5) of this Section.
5) Instead of complying with the
				requirements of subsection (a)(4) of this Section, an owner or operator of an
				industrial boiler subject to Subpart E of this Part, or a process heater
				subject to Subpart F of this Part, with a rated heat input capacity less than
				or equal to 100 mmBtu/hr may install and operate a continuous emissions
				monitoring system on such emission unit in accordance with the applicable
				requirements of 40 CFR 60, subpart A and appendix B, Performance Specifications
				2 and 3, and appendix F, Quality Assurance Procedures, as incorporated by
				reference in Section 217.104. The continuous emissions monitoring system must
				be used to demonstrate compliance with the applicable emissions limitation or
				emissions averaging plan on an ozone season and annual basis.
6) Notwithstanding subsection (a)(2) of this
				Section, the owner or operator of an auxiliary boiler subject to Subpart E of
				this Part with a rated heat input capacity less than or equal to 250 mmBtu/hr
				and a capacity factor of less than or equal to 20% is not required to install,
				calibrate, maintain, and operate a continuous emissions monitoring system on
				such boiler for the measurement of NOx emissions
				discharged into the atmosphere, but must comply with the performance test
				requirements under subsection (a)(4) of this Section.