Current through 2024-38, September 18, 2024
The following standards shall apply until January 1,
2020:
A.
Fuel Burning
Equipment
Equipment shall be subject to one of the standards in this
section based upon the primary fuel licensed for the unit:
(1) Boilers Firing #4, #5, #6 Fuel Oil.
(a) Visible emissions from any unit firing
#4, #5, or #6 fuel oil whose rated input capacity is less than 1000 million
BTU/hr shall not exceed an opacity of 30 percent on a six (6) minute block
average basis, except for no more than two (2) six (6) minute block averages in
a 3-hour period.
(b) Visible
emissions from any unit firing #4, #5, or #6 fuel oil whose rated input
capacity is 1000 million BTU/hr or greater shall not exceed an opacity of 20
percent on a six (6) minute block average basis for 90 percent of all six (6)
minute block averages on a quarterly basis. The remaining 10 percent of all six
(6) minute block averages on a quarterly basis shall be no greater than 30
percent opacity. Quarterly basis is the period of time from January 1 to March
31, April 1 to June 30, etc. A unit subject to this section shall be required
to operate and maintain a Continuous Opacity Monitoring System
(COMS).
(2) Boilers
Firing #2 Fuel Oil. Visible emissions from any unit firing #2 fuel oil shall
not exceed an opacity of 20 percent on a six (6) minute block average basis,
except for no more than one (1) six (6) minute block average in a 3-hour
period.
(3) Boilers Firing Natural
Gas or Propane. Visible emissions from any unit firing natural gas or propane
shall not exceed an opacity of 10 percent on a six (6) minute block average
basis, except for no more than one (1) six (6) minute block average in a 3-hour
period.
(4) Stationary Internal
Combustion Engines. Visible emissions from any stationary internal combustion
engine manufactured after the year 2000 shall not exceed an opacity of 20
percent on a six (6) minute block average basis, except for no more than two
(2) six (6) minute block averages in a 3-hour period.
(5) Wood Waste/Biomass Units. Visible
emissions from any wood waste or biomass unit shall not exceed an opacity of 30
percent on a six (6) minute block average basis, except for no more than two
(2) six (6) minute block averages in a 3-hour period.
(6) Visible emissions from any fuel burning
equipment not specifically listed in this section shall not exceed an opacity
of 30 percent on a six (6) minute block average basis, except for no more than
two (2) six (6) minute block averages in a 3-hour period.
For any fuel burning equipment monitored by COMS that are
not subject to 40 C.F.R. Part 60, 63 and 75, the COMS shall record opacity on a
six (6) minute block average basis, and the 3-hour period shall be a 3-hour
block period beginning from midnight to 3:00, from 3:00 to 6:00, from 6:00 to
9:00, etc. For any fuel burning equipment not monitored by COMS the 3-hour
period shall be any continuous 3-hour period.
B.
General Process Source
(1) Visible emissions from any asphalt batch
plant baghouse shall not exceed an opacity of 20 percent on a six (6) minute
block average basis, except for no more than two (2) six (6) minute block
averages in a 3-hour period.
(2)
Visible emissions from rock crushers shall not exceed an opacity of 10 percent
on a six (6) minute block average basis.
(3) Visible emissions from baghouses,
excluding asphalt batch plant baghouses, shall not exceed an opacity of 10
percent on a six (6) minute block average basis, except for no more than one
(1) six (6) minute block average in a 1-hour period. The facility shall take
corrective action if visible emissions from the baghouses exceed five (5)
percent opacity.
(4) Visible
emissions from any general process source not specifically listed in this
section shall not exceed an opacity of 20 percent on a six (6) minute block
average basis, except for no more than one (1) six (6) minute block average in
a 1-hour period.
For any general process source monitored by COMS that are
not subject to 40 C.F.R. Part 60 and 63, the COMS shall record opacity on a six
(6) minute block average basis, and the 1-hour period shall be a 1-hour period
beginning from midnight to 1:00, from 1:00 to 2:00, from 2:00 to 3:00, etc. For
any general process source not monitored by COMS the 1-hour period shall be any
continuous 1-hour period.
C.
Fugitive Emission Sources
Visible emissions from a fugitive emission source shall not
exceed an opacity of 20 percent, except for no more than five (5) minutes in
any 1-hour period. Compliance shall be determined by an aggregate of the
individual fifteen (15)-second opacity observations which exceed 20 percent in
any one (1) hour.
D.
Combined Stack Emissions
Except as provided for in subsection 2(E)(2), visible
emissions from two or more of any combination of sources subject to this
Chapter, which are operating and emitting visible air contaminants through one
stack or vent, shall meet one of the following limits as specified in the
source's air emission license.
(1) The
common stack opacity shall not exceed an opacity of 30 percent recorded as six
(6) minute block averages, except for no more than three (3) six (6) minute
block averages in a 3-hour block period; or
(2) The common stack opacity shall not exceed
30 percent opacity on a six (6) minute block average basis for 98 percent of
all six (6) minute block averages on a quarterly basis. In addition, the common
stack opacity shall not exceed 40 percent opacity on a six (6) minute block
average basis for 99.5 percent of all six (6) minute block averages on a
quarterly basis. Periods of start-up, shutdown and malfunctions are included
for the purpose of calculating block averages under this subsection. Quarterly
basis is the period of time from January 1 to March 31, April 1 to June 30,
etc., as specified in the source's air emission license. Only sources which use
COMS may, at their option, be subject to this paragraph; or
(3) The common stack opacity for sources
operating below 50% of the boiler load capacity that the common stack was
designed for, based on a 12-month rolling total, shall not exceed 30 percent
opacity on a six (6) minute block average basis for 95 percent of all six (6)
minute block averages on a quarterly basis. In addition, the common stack
opacity shall not exceed 40 percent opacity on a six (6) minute block average
basis for 99 percent of all six (6) minute block averages on a quarterly basis.
Periods of start-up, shutdown and malfunctions are included for the purpose of
calculating block averages under this subsection. Quarterly basis is the period
of time from January 1 to March 31, April 1 to June 30, etc., as specified in
the source's air emission license. Only sources which use COMS may, at their
option, be subject to this paragraph.
For any combined stack emissions monitored by COMS that are
not subject to 40 C.F.R. Part 60, 63 and 75, the COMS shall record opacity on a
six (6) minute block average basis, and the 3-hour period shall be a 3-hour
block period beginning from midnight to 3:00, from 3:00 to 6:00, from 6:00 to
9:00, etc. For any combined stack emissions not monitored by COMS the 3-hour
period shall be any continuous 3-hour period. Sources which emit through a
combined stack subject to this section are not subject to the standards
applicable to individual sources elsewhere in this Chapter.
E.
Fuel burning sources that
are restricted to less than 20 percent capacity on an annual basis.
(1) Visible emissions from any fuel burning
source shall not exceed an opacity of 30 percent on a six (6) minute block
average basis, except for no more than two (2) six (6) minute block averages in
a 3-hour period.
(2) Visible
emissions from any fuel burning source comprised of two or more units emitted
through one stack shall not exceed an opacity of 40 percent on a six (6) minute
block average basis, except for no more than three (3) six (6) minute block
averages in a 2-hour period.
