35 Ill. Adm. Code 217.708
NOx Averaging
Section 217
Section 217.708 NO
x
Averaging
a) Notwithstanding Section 217.706(a) of this Subpart, the owners
or operators of EGUs listed in Appendix F of this Part and the owner or
operator of Soyland Power may elect to demonstrate compliance with this Subpart
by averaging for the ozone control period the NO
x
emission rates
with any EGU listed in Appendix F or any EGU at Soyland Power's Alsey Illinois
facility that commenced commercial operation on or before January 1, 2000.
b) The average NO
x
emission rate for all EGUs being averaged
pursuant to this Section must not exceed 0.25 lbs/mmbtu and shall be determined
as follows:
ERavg
=
n
3
i=1
(HI
i
x ER
i
)
n
3
i=1
HI
i
Where:
ERavg
=
average emission rate in
lbs/mmbtu of all EGUs in averaging demonstration
HI
i
=
heat input for the ozone
control period of EGU i, in mmbtu, as specified in the NO
x
averaging
demonstration
ER
i
=
actual NO
x
emission
rate of EGU i, in lbs/mmbtu, as specified in the NO
x
averaging
demonstration
n
=
number of EGUs that are
averaging
c) Averaging under this Subpart must be authorized through
federally enforceable permit conditions for such EGU.
d) An EGU may be included in only one NO
x
averaging demonstration
during an ozone control period.
e) Compliance by averaging for each ozone control period must be
demonstrated by November 30 following each ozone control period.
f) If averaging is used to demonstrate compliance with this
Subpart, the effect of a failure to demonstrate such compliance shall be that
the compliance status of each EGU shall be determined pursuant to Section
217.706(a) as if the NO
x
emission rates of such EGUs were not
averaged.
g) The owner or operator of any EGU that elects to participate in
an averaging demonstration to demonstrate compliance with this Subpart cannot
average with any other EGU for which the owner or operator of such EGU does not
maintain the required records, data, and reports, or does not submit copies of
such records, data, or reports to the Agency upon request.