Pennsylvania Code › Title 25 - ENVIRONMENTAL PROTECTION › Part I - Department of Environmental Protection › Subpart C - Protection of Natural Resources › Article III - Air Resources › Chapter 123 - STANDARDS FOR CONTAMINANTS › NO[x] ALLOWANCE REQUIREMENTS › Section 123.108 - Source emissions monitoring requirements

Current through Register Vol. 54, No. 28, July 13, 2024
The owner and operator of each
						  NOx affected source shall comply with the following
						  requirements:
(1)
						NOx emissions from each NOx
						affected source shall be monitored as specified by this section and in
						accordance with the procedures contained in the document titled, "Guidance for
						Implementation of Emission Monitoring Requirements for the
						NOx Budget Program."
(2) The owner or operator of each
						NOx affected source shall submit to the Department and
						the NOx budget administrator a monitoring plan in
						accordance with the procedures outlined in the document titled, "Guidance for
						Implementation of Emission Monitoring Requirements for the
						NOx Budget Program."
(3) New and existing unit emission monitoring
						systems, as required and specified by this section, shall be installed and be
						operational and shall have met all of the certification testing requirements in
						accordance with the procedures and deadlines specified in the document titled,
						"Guidance for Implementation of Emission Monitoring Requirements for the
						NOx Budget Program" in a manner consistent with Chapter
						139 (relating to sampling and testing).
(4) Monitoring systems are subject to initial
						performance testing and periodic calibration, accuracy testing and quality
						assurance/quality control testing as specified in the document titled "Guidance
						for Implementation of Emission Monitoring Requirements for the
						NOx Budget Program." Notwithstanding this provision,
						Non-Part 75 Sources which have Department approved NOx
						CEMS reporting in accordance with §
												139.101 (relating to general
						requirements) in units of pounds of NOx per hour shall
						complete the periodic self-audits listed in the quality assurance section of
						§
												139.102(3)
						(relating to references) at least annually and no sooner than 6 months
						following the previous periodic self-audit. If practicable, the audit shall be
						conducted between April 1 and May 31.
(5) During a period when valid data is not
						being recorded by devices approved for use to demonstrate compliance with this
						subchapter, missing or invalid data shall be replaced with representative
						default data in accordance with 40 CFR Part 75 (relating to continuous emission
						monitoring) and the document titled, "Guidance for Implementation of Emission
						Monitoring Requirements for the NOx Budget Program."
						Notwithstanding this provision, Non-Part 75 Sources which have Department
						approved NOx CEMS reporting in accordance with §
						139.101 in units of pounds of NOx per hour shall report
						this data to the NETS and shall continue report submissions as required under
						Chapter 139 to the Department.
(6)
						Sources subject to 40 CFR Part 75 shall demonstrate compliance with this
						section with a certified Part 75 monitoring system.
(i) If the source has a flow monitor
						certified under Part 75, NOx in pounds per hour shall be
						determined using the Part 75 NOx CEMS and the flow
						monitor. The NOx emission rate in pounds per million Btu
						shall be determined using the procedure in 40 CFR Part 75 Appendix F, Section 3
						(relating to procedures for NOx emission rate). The
						hourly heat input shall be determined by using the procedures in 40 CFR Part 75
						Appendix F, Section 5 (relating to procedures for heat input).
						NOx in pounds per hour shall be determined by
						multiplying the NOx per million Btu by the Btus per
						hour.
(ii) If a Part 75 source does
						not have a certified flow monitor, but does have a certified
						NOx CEMS, NOx emissions in pounds
						per hour emissions shall be determined by using the NOx
						CEMS to determine the NOx emission rate in pounds per
						million Btu and the heat input shall be determined by using the procedures in
						40 CFR Part 75 Appendix D (relating to optional SO2
						emissions data protocol for gas-fired and oil-fired units).
						NOx in pounds per hour shall be determined by
						multiplying the NOx per million Btu and Btus per
						hour.
(iii) If the owner or
						operator of a source uses the procedures in 40 CFR Part 75 , Appendix E
						(relating to optional NOx emissions estimation protocol
						for gas-fired peaking units and oil-fired peaking units) to determine the
						NOx emission rate, NOx emissions
						in pounds per hour shall be determined by multiplying the
						NOx emission rate determined by using the Appendix E
						procedures times the heat input determined using the procedures in
						40 CFR Part
						75, Appendix D.
(iv) If the owner or operator of a source
						uses the procedures in 40 CFR Part 75 , Subpart E (relating to alternative
						monitoring systems) to determine NOx emission rate,
						NOx emissions in pounds per hour shall be determined
						using the alternative monitoring method approved under 40 CFR Part 75 Subpart E
						and the procedures contained in the document titled, "Guidance for
						Implementation of Emission Monitoring Requirements for the
						NOx Budget Program."
(v) If the source emits to common or multiple
						stacks, or both, the source shall monitor emissions according to the procedures
						contained in the document titled, "Guidance for Implementation of Emission
						Monitoring Requirements for the NOx Budget Program."