Current through 2024-38, September 18, 2024
A.
Large Boilers. Any person
owning, leasing, operating or controlling a boiler having an energy input
capacity of 1500 million British Thermal Units (BTU) or greater shall comply
with the following NOx emission standard.
(1) The NOx emission
rate for large boilers licensed to fire oil shall not exceed 0.30 pounds per
million British Thermal Units (BTU) on a 24-hour daily block arithmetic average
basis.
(2) The
NOx emission rate for large boilers licensed to fire
multiple fuels shall not exceed 0.30 pounds per million British Thermal Units
(BTU) on a 24-hour daily block arithmetic average basis.
(3) Large boilers shall demonstrate
compliance through the use of a continuous emissions monitoring system that
satisfies the requirements of Department Regulation Chapter
117.
B.
Mid-Size
Boilers. Any person owning, leasing, operating or controlling a boiler
having an energy input capacity of 50 million BTU per hour or greater and less
than 1500 million British Thermal Units (BTU) or greater shall comply with the
following NOx emission standard.
(1) The NOx emission
rate for mid-size boilers licensed to fire oil shall not exceed 0.30 pounds per
million BTU based on a one hour average unless the facility installs Low
NOx burners or equivalent strategies.
(2) The NOx emission
rate for mid-size boilers licensed to fire biomass shall not exceed 0.30 pounds
per million BTU based on a one hour average.
(3) The NOx emission
rate for mid-size boilers licensed to fire biomass and oil shall not exceed
0.30 pounds per million BTU based on a one hour average.
(4) The NOx emission
rate for mid-size boilers licensed to fire biomass and coal shall not exceed
0.38 pounds per million BTU based on a one hour average.
(5) The NOx emission
rate for mid-size boilers licensed to fire biomass and fuels other than oil and
coal shall not exceed 0.30 pounds per million BTU based on a one hour
average.
(6) Mid-size boilers with
a heat input of 250 million BTU per hour or greater shall demonstrate
compliance through the use of a continuous emissions monitoring system that
satisfies the requirements of Department Regulation Chapter 117 by May 31,
1995.
(7) Mid-size boilers with a
heat input of 200 million BTU per hour and less than 250 million BTU per hour
shall demonstrate compliance through the use of a continuous emissions
monitoring system that satisfies the requirements of Department Regulation
Chapter 117 by May 31, 1997.
(8)
For any mid-size boiler which employs the use of a continuous emissions
monitoring system that satisfies the requirements of Department Regulation
Chapter 117 compliance will be on a 24-hour daily block arithmetic average
basis.
C.
Kraft
Recovery Boilers. Any person owning, leasing, operating or controlling a
Kraft recovery boiler shall comply with the following
NOx emission standards:
(1) The NOx emissions
from any Kraft recovery boiler shall not exceed 120 parts per million by volume
wet basis, corrected to 8% oxygen or 12% carbon dioxide, on a 24-hour daily
block arithmetic average basis.
(2)
Kraft recovery boilers shall demonstrate compliance through the use of a
continuous emissions monitoring system that satisfies the requirements of
Department Regulation Chapter 117.
D.
MgO Recovery Boilers. Any
person owning, leasing, operating or controlling an MgO recovery boiler shall
comply with the following NOx emission standards.
(1) The NOx emissions
from any MgO recovery boiler shall not exceed 250 parts per million by volume
wet basis, corrected to 4% oxygen on a 24-hour daily block average basis except
during acidification.
(2) During
acidification NOx emissions from any MgO recovery boiler
shall not exceed 1200 parts per million by volume wet basis, corrected to 12%
oxygen on a 24-hour daily block average basis.
(3) MgO recovery boilers shall demonstrate
compliance through the use of a continuous emissions monitoring system that
satisfies the requirements of Department Regulation Chapter 117.
E.
Lime Kiln. Any
person owning, leasing, operating or controlling a lime kiln shall comply with
the following NOx emission standards.
(1) The NOx emissions
from any lime kiln shall not exceed 120 parts per million by volume wet basis,
corrected to 10% oxygen, on a one hour average.
(2) Compliance for lime kilns shall be
determined by stack tests.
F.
Refuse Derived Fuel (RDF) Municipal
Solid Waste(MSW) Incinerators. Any person owning, leasing, operating or
controlling an RDF MSW incinerator shall comply with the following
NOx emission standards.
(1) The NOx emissions
for RDF fired MSW incinerators shall not exceed 180 parts per million by
volume, corrected to 7% oxygen, on a 24-hour daily block arithmetic average
basis.
(2) RDF fired MSW
incinerators shall demonstrate compliance through the use of a continuous
emissions monitoring system that satisfies the requirements of Department
Regulation Chapter 117.
G.
Mass Burn Municipal Solid Waste
(MSW) Incinerators. Any person owning, leasing, operating or controlling
a mass burn municipal waste incinerator shall comply with the following
NOx emission standards.
(1) The NOx emissions
for mass burn MW incinerators shall not exceed 200 parts per million by volume,
corrected to 7% oxygen, on a 24-hour daily block arithmetic average
basis.
(2) Mass burn MW
incinerators shall demonstrate compliance through the use of a continuous
emissions monitoring system that satisfies the requirements of Department
Regulation Chapter 117.
H.
Miscellaneous Stationary Sources.
Owners or operators of miscellaneous stationary
NOx sources meeting the applicability criteria of this
Chapter and not specified in Sections 3(A) through 3(G) shall conduct an
alternative RACT determination and comply with the provisions of Section
3(I).
I.
Alternative RACT
Determination. The provisions of Section 3(A) through Section 3(G) and
Section 4 shall not apply to an affected facility where the owners or operators
comply with each of the following:
(1) Within
six months of the effective date of this Chapter or after the modeling is
defined in Subsection 1(A)(3), submit to the Department for approval an
application to amend the facility's existing air emission license to
incorporate NOx RACT which details various options for
the reduction of NOx emissions to the atmosphere. Each
application shall include, at a minimum:
(a)
An inventory of all affected NOx-emitting equipment at
the facility;
(b) The maximum
capacity of all affected NOx-emitting
equipment;
(c) The maximum
potential uncontrolled NOx emissions;
(d) An examination of the technical and
economic feasibility of available NOx control techniques
for the applicable NOx emitting equipment for which
alternative RACT emission limits are sought, including but not limited to the
capabilities of the following NOx control options:
(i) Low-NOx
burners,
(ii) Overfire
air,
(iii) Flue gas
reburn,
(iv) Burners out of
service,
(v) Use of alternative
fuels,
(vi) Selective non-catalytic
reduction,
(vii) Selective
catalytic reduction, and
(viii)
Alternative operating scenarios.
(e) The control option(s) selected, stating
emission limits, and test methods to demonstrate compliance;
(f) The amount of NOx
that is proposed to be controlled from the affected
NOx-emitting equipment identified in Section
3(I)(1)(a);
(g) A schedule for
implementation, including a demonstration of compliance; and
(h) A means of assessing compliance,
including test methods, monitoring devices, record keeping and reporting
requirement.
(2) Submit
to the Department other information that is deemed by the Department to be
required to determine RACT within 30 days of receipt of such request, unless
otherwise provided by the Department.
(3) Submit to the Department a schedule for
complete installation of control equipment and/or implementation of the
NOx RACT determination as required by the Department
Order issued under Section 5.
J.
Seasonality Standard.
Facilities subject to Sections 3(A) or 3(B) may choose the following
alternative emission limits through the seasonal combustion of different fuels:
(1) Large boilers
(a) The NOx emission
rate for large boilers during the ozone season dates of May l through September
30 shall not exceed 0.2 pounds per million BTU on a 24-hour daily block
arithmetic average basis. During the dates of October 1 through April 30, the
large boiler shall not exceed 0.3 pounds per million BTU on a 24-hour daily
block arithmetic average basis; or
(b) The NOx emission
rate for large boilers during the ozone season dates of May l through September
30 shall not exceed 0.15 pounds per million BTU on a 24-hour daily block
arithmetic average basis. During the dates of October 1 through April 30, the
large boiler shall not exceed 0.35 pounds per million BTU on a 24-hour daily
block arithmetic average basis.
(2) Mid-size boilers
(a) The NOx emission
rate for mid-size boilers during the ozone season dates of May l through
September 30 shall not exceed 0.20 pounds per million BTU based on a one hour
average. During the dates of October 1 through April 30, the mid-size boiler
shall not exceed 0.40 pounds per million BTU based on a one hour average. For
any mid-size boiler which employs the use of a continuous emissions monitoring
system that satisfies the requirements of Department Regulation Chapter 117
compliance will be on a 24-hour daily block arithmetic average basis;
or
(b) The
NOx emission rate for mid-size boilers during the ozone
season dates of May l through September 30 shall not exceed 0.15 pounds per
million BTU based on a one hour average. During the dates of October 1 through
April 30, the mid-size boiler shall not exceed 0.45 pounds per million BTU
based on a one hour average. For any mid-size boiler which employs the use of a
continuous emissions monitoring system that satisfies the requirements of
Department Regulation Chapter 117 compliance will be on a 24-hour daily block
arithmetic average basis.
K.
Emissions Averaging. Any
person owning, leasing, operating or controlling any of the units covered in
Sections 3(A) -3(E) or Section 4 at any one facility may average the applicable
emission rates between units on an equivalent pounds per million BTU basis on a
24-hour daily block arithmetic basis. Continuous emission monitoring systems
that satisfy the requirements of Department Regulation Chapter 117 must be
employed to allow the use of this provision.
L.
Small Boilers
(1) Any person owning, leasing, operating or
controlling a boiler having an energy input capacity of less than 50 million
BTU per hour and equal to or greater than 20 million BTU per hour shall have
performed on the boiler an annual tune-up.
(2) The following tune-up record keeping
requirements are required:
(a) A tune-up
procedure file must be kept on-site and made available to the Department upon
request,
(b) An oxygen/carbon
monoxide curve or an oxygen/smoke curve must be kept on file,
(c) Once the optimum excess oxygen setting
has been determined, the owner or operator of a source must periodically verify
that the setting remains at that value, and
(d) If the minimum oxygen level found is
substantially higher than the value provided by the combustion unit
manufacturer, the owner or operator must improve the fuel and air mixing,
thereby allowing operation with less air.
M.
Auxiliary/Standby Boilers.
Any person owning or operating an auxiliary/standby boiler shall be
subject to the following:
(1)
NOx emissions shall be limited to less than 100 tons per
year on a 12 month rolling average basis -beginning on August 1,
1994;
(2) The
NOx emissions for the boiler shall not exceed 20 tons
per any calendar month; and
(3) The
auxiliary/standby boilers shall have an annual tune-up and subject to the
tune-up recordkeeping requirements specified in Section 3(L)(2).
N.
Repowering Project Unit.
Any person owning, leasing, operating or controlling a
NOx-emitting equipment that enters into an enforceable
agreement with the Department prior to January 1, 1995 to permanently shut
down, dismantle, and complete a repowering project of any of its equipment by
May 15, 1999 shall comply with the following:
(1) The unit to be shut down or dismantled by
May 15, 1999 shall be tuned-up annually. The tune-up shall be performed between
March 15 and June 15 of each year, starting in 1995, until the unit is retired,
and
(2) The repowered facility must
meet a NOx emission limitation that has been determined
to be Best Available Control Technology or Lowest Achievable Emission Rate in a
license issued by the Department.
O.
Compliance Determination. For
any source that employs the use of a continuous emissions monitoring system,
periods of startup, shutdown, equipment malfunction and fuel switching shall
not be included in determining 24-hour daily block arithmetic average emission
rates provided that operating records are available to demonstrate that the
facility was being operated to minimize emissions.
