Code of Maryland Regulations › Title 26 - DEPARTMENT OF ENVIRONMENT › Part 2 - SUBTITLES 08-12 › Subtitle 11 - AIR QUALITY › Chapter 26.11.09 - Control of Fuel Burning Equipment, Stationary Internal Combustion Engines, and Certain Fuel-Burning Installations › Section 26.11.09.05 - Visible Emissions

Current through Register Vol. 51, No. 14, July 12, 2024
A. Fuel
				  Burning Equipment.
(1) Areas I, II, V, and VI.
				  In Areas I, II, V, and VI, a person may not cause or permit the discharge of
				  emissions from any fuel burning equipment, other than water in an uncombined
				  form, which is greater than 20 percent opacity.
(2) Areas III and IV. In Areas III and IV, a
				  person may not cause or permit the discharge of emissions from any fuel burning
				  equipment, other than water in an uncombined form, which is visible to human
				  observers except that, for the purpose of demonstrating compliance using COM
				  data, emissions that are visible to a human observer are those that are equal
				  to or greater than 10 percent opacity.
(3) Exceptions. Section A(1) and (2) of this
				  regulation do not apply to emissions during load changing, soot blowing,
				  startup, or adjustments or occasional cleaning of control equipment if:
(a) The visible emissions are not greater
				  than 40 percent opacity; and
(b)
				  The visible emissions do not occur for more than 6 consecutive minutes in any
				  sixty minute period.
(4)
				  Fuel Burning Equipment Required to Operate a COM. The owner or operator of fuel
				  burning equipment that is subject to the requirement to install and operate a
				  COM shall demonstrate compliance with the applicable visible emissions
				  limitation specified in §A(1) and (2) of this regulation as follows:
(a) For units with a capacity factor greater
				  than 25 percent, until December 31, 2009, compliance is achieved if visible
				  emissions do not exceed the applicable visible emissions limitation in §A(1)
				  and (2) of this regulation for more than 4 percent of the unit's operating time
				  in any calendar quarter, during which time visible emissions:
(i) Do not exceed 40.0 percent opacity,
				  except for 5.0 hours or 0.5 percent of the unit's operating time, whichever is
				  greater;
(ii) Do not exceed 70.0
				  percent opacity for more than four (4) 6-minute periods, except that coal-fired
				  units equipped with electrostatic precipitators may exceed 70.0 percent opacity
				  for no more than 2.2 hours; and
(iii) On any calendar day, do not exceed the
				  applicable visible emissions limitation in §A(1) and (2) of this regulation for
				  more than 4.1 hours, during which time visible emissions do not exceed 40.0
				  percent opacity for more than 1.4 hours and do not exceed 70.0 percent opacity
				  for more than two (2) six-minute periods;
(b) For units with a capacity factor greater
				  than 25 percent, beginning January 1, 2010, compliance is achieved if visible
				  emissions do not exceed the applicable visible emissions limitation in §A(1)
				  and (2) of this regulation for more than 2 percent of the unit's operating time
				  in any calendar quarter, during which time visible emissions:
(i) Do not exceed 40.0 percent opacity,
				  except for 5.0 hours or 0.5 percent of the unit's operating time, whichever is
				  greater;
(ii) Do not exceed 70.0
				  percent opacity for more than four (4) six-minute periods, except that
				  coal-fired units equipped with electrostatic precipitators may exceed 70.0
				  percent opacity for no more than 2.2 hours; and
(iii) On any calendar day, do not exceed the
				  applicable visible emissions limitation in §A(1) and (2) of this regulation for
				  more than 4.1 hours, during which time visible emissions do not exceed 40.0
				  percent opacity for more than 1.4 hours and do not exceed 70.0 percent opacity
				  for more than two 6-minute periods;
(c) For units with a capacity factor equal to
				  or less than 25 percent that operate more than 300 hours per quarter, beginning
				  July 1, 2009, compliance with the applicable visible emissions limitation in
				  §A(1) and (2) of this regulation is achieved if, during a calendar quarter,
				  visible emissions do not exceed the applicable standard for more than 20.0
				  hours, during which time visible emissions:
(i) Do not exceed 40.0 percent opacity for
				  more than 2.2 hours;
(ii) Do not
				  exceed 70 percent for more than four 6-minute periods; and
(iii) On any calendar day, do not exceed the
				  applicable visible emissions limitation in §A(1) and (2) of this regulation for
				  more than 4.1 hours, during which time visible emissions do not exceed 40.0
				  percent opacity for more than 1.4 hours and do not exceed 70.0 percent opacity
				  for more than two 6-minute periods; and
(d) For units with a capacity factor equal to
				  or less than 25 percent that operate 300 hours or less per quarter, beginning
				  July 1, 2009, compliance with the applicable visible emissions limitation in
				  §A(1) and (2) of this regulation is achieved if, during a calendar quarter,
				  visible emissions do not exceed the applicable standard for more than 12.0
				  hours, during which time visible emissions:
(i) Do not exceed 40.0 percent opacity for
				  more than 2.2 hours;
(ii) Do not
				  exceed 70.0 percent opacity for more than four 6-minute periods; and
(iii) On any calendar day, do not exceed the
				  applicable visible emissions limitation in §A(1) and (2) of this regulation for
				  more than 4.1 hours, during which time visible emissions do not exceed 40.0
				  percent opacity for more than 1.4 hours and do not exceed 70.0 percent opacity
				  for more than two 6-minute periods.
(5) Notwithstanding the requirements in §A(4)
				  of this regulation, the Department may determine compliance and noncompliance
				  with the visible emissions limitations specified in §A(1) and (2) of this
				  regulation by performing EPA reference Method 9 observations.
(6) In no instance shall excess emissions
				  exempted under this regulation cause or contribute to a violation of any
				  ambient air quality standard in 40 CFR Part 50, as amended, or any applicable
				  requirements of 40 CFR Part 60, 61, or 63, as amended.