35 Ill. Adm. Code 217.710
Monitoring
Section 217
Section 217.710 Monitoring
a) The owner or operator of an EGU subject to this Subpart shall
install, calibrate, maintain and operate continuous emissions monitoring
systems (CEMS) for NO
x
that meet the requirements of 40 CFR 75,
subpart B.
b) Notwithstanding subsection (a), the owner or operator of a
gas-fired peaking unit or oil-fired peaking unit as defined in 40 CFR 72.2 may
determine NO
x
emissions in accordance with the emissions estimation
protocol of 40 CFR 75, subpart E.
c) Notwithstanding subsection (a), the owner or operator of a
combustion turbine that operates less than 350 hour per ozone control period
may determine the heat input and NO
x
emissions of the turbine as
follows:
1) Heat input shall be determined from the metered fuel usage to
the turbine or the calculated heat input determined as the product of the
turbine's maximum hourly heat input and hours of operation as recorded by
operating instrumentation on the turbine;
2) NO
x
emissions shall be determined as the product of
the heat input, as determined above, and the appropriate default NO
x
emission factors below:
0.7 lbs/mmbtu –
Natural gas
1.2 lbs/mmbtu –
Fuel oil