Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0002 - Air Quality › Chapter 7 - MONITORING REGULATIONS › Section 7-2 - Continuous monitoring requirements for existing sources

Current through July 13, 2024
(a) The owner or
				operator of any existing solid fossil fuel-fired steam generator with a heat
				input greater than 250 million Btu per hour shall install, calibrate, operate,
				and maintain a continuous monitoring system for stack gas opacity.
(i) Such continuous monitoring equipment
				shall be demonstrated by the owners or operators to meet the performance
				specifications for such equipment as given in 40 CFR part 60, Appendix
				B.
(ii) Such continuous monitoring
				equipment shall complete a minimum of one cycle of sampling and analyzing for
				each successive ten-second period and one cycle of data recording for each
				successive six-minute period.
(iii)
				The owner or operator of such equipment shall:
(A) Record the zero and span drift in
				accordance with the method prescribed by the manufacturer of such
				instruments;
(B) Subject the
				instruments to the manufacturer's recommended zero and span check at least once
				daily unless the manufacturer has recommended adjustments at shorter intervals,
				in which case such recommendations shall be followed;
(C) Adjust the zero and span whenever the
				24-hour zero drift or 24-hour calibration drift limits of the applicable
				performance specifications in 40 CFR part 60, Appendix B, are
				exceeded.
(iv)
				Instrument span shall be approximately 200 percent of the expected instrument
				data display output corresponding to the emission standard for the
				source.
(v) The owner or operator
				of a source subject to this regulation shall install the required continuous
				monitoring systems such that representative measurements
of emissions from the affected facility are obtained. The
				  location of such systems shall be approved by the Administrator.
(vi) The owner or operator of any
				facility subject to the requirements of this regulation shall submit a written
				report of excess emissions for each calendar quarter and the nature and cause
				of the excess emissions, if known. The averaging period used for data reporting
				shall be six minutes. The required report shall include as a minimum:
(A) The magnitude in actual percent opacity
				of all six-minute averages of opacity greater than the applicable opacity
				standard for each hour of operation of the facility. Average values may be
				obtained by integration over the averaging period or by arithmetically
				averaging a minimum of four equally spaced, instantaneous opacity measurements
				per minute. The date and time of the recorded excesses shall be
				included.
(B) The date and time
				identifying each period during which the continuous monitoring system was
				inoperative, except for zero and span checks, and the nature of system repairs
				or adjustments shall be reported. The Administrator may require proof of
				continuous monitoring system performance whenever system repairs or adjustments
				have been made.
(C) When no excess
				emissions have occurred and the continuous monitoring system(s) have not been
				inoperative, repaired, or adjusted, such information shall be included in the
				report.
(D) The owners or operators
				of affected facilities shall maintain a file of all information reported in the
				quarterly summaries, and all other data collected either by the continuous
				monitoring system for a minimum of two years from the date of collection of
				such data or submission of such summaries.
(vii) The reporting requirements of paragraph
				23(a)(vi)(A) shall not apply during any period of monitoring system
				malfunction, provided that the source owner or operator shows, to the
				satisfaction of the Administrator, that the malfunction was unavoidable and is
				being repaired as expeditiously as practicable.
(viii) The owner or operator of any source
				subject to this regulation shall complete the installation and performance
				tests of the equipment required by this regulation and begin monitoring and
				recording within 18 months from promulgation of this regulation.