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
Universal Citation: WY Code of Rules 7-2
Current through September 21, 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.
(b) The requirements for continuous opacity monitors set forth in paragraph 23(a) above shall not apply to an otherwise affected source if such source utilizes a wet type air pollution control device such that the stack gas contains uncombined water vapor. In such cases, the Administrator may require the installation and operation of such alternate particulate emission continuous monitoring systems as he deems appropriate.
Disclaimer: These regulations may not be the most recent version. Wyoming may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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