The owner or operator shall continuously monitor equipment
subject to sulfur dioxide (SO2) emission
limits or standards in §112.102 of this title (relating to Control
Requirements) as follows:
(1) install, operate, calibrate, and maintain a continuous
emissions monitoring system (CEMS) as specified in 40 Code of Federal
Regulations (CFR) §60.105a(g)(1), (2) and (5) regardless of whether
these provisions otherwise apply; use an analyzer with a minimum analyzer
accuracy of plus or minus (±) 2.5%, a dedicated totalizing
gas flow measurement system with a minimum measurement accuracy of ±5%,
and a temperature monitor with a minimum accuracy of ±1%; convert
data from all monitoring devices to a common concentration, flow,
pressure, and temperature basis, and calculate and record 15-minute
and subsequent block one-hour average SO2 emissions
from FCCU ESP Stack (EPN 06ESPPCV);
(2) for the North East Flare (EPN 14NEASTFLR), Crude
Flare (EPN 02CRUDEFLR), Reformer Flare (EPN 05REFMFLR), and South
Flare (EPN 16SOUTHFLR), install, operate, calibrate, and maintain
designated instrumentation according to the manufacturers' specifications
to continuously monitor the gas stream flare inlet temperature, the
total inlet gas flow rate, and the total sulfur concentration as specified
in 40 CFR §60.107a(e) and (f)(1), regardless of whether these
provisions otherwise apply or exempt flare activities, as follows:
(A) monitor the total volumetric flow rate of gases
routed to each flare using a separate dedicated totalizing gas flow
meter with an accuracy of ±5%;
(B) monitor the temperature of gases routed to each
flare using a separate temperature measurement device with an accuracy
of ±1%; and
(C) monitor the sulfur content of the combined inlet
flare gas stream as follows:
(i) using a separate dedicated analyzer capable of
accurately measuring and recording total sulfur (including sulfur
dioxide (SO2), hydrogen sulfide (H2S), and organic sulfur compounds levels) with
an accuracy of ±5% on a continuous basis, the sulfur concentration
must be determined in accordance 40 CFR §60.107a(e)(1) regardless
of whether these requirements are otherwise applicable or exempt the
flare, and hourly SO2 emissions must
be determined using the following equation; or
Attached Graphic
(ii) using a separate dedicated analyzer capable of
accurately measuring and recording H2S
to an accuracy of ±5% on a continuous basis, determine the
H2S concentration in the flared gas stream,
derive an inlet flare gas total sulfur concentration for each monitored
hourly H2S concentration in accordance
with 40 CFR §60.107a(e)(2) methodology regardless of whether
these requirements are otherwise applicable or exempt the flare, and
calculate the SO2 emissions for each
operating hour using the following equation:
Attached Graphic
(3) separately for SRU1 Incinerator Stack (EPN 69TGINC)
and SRU2 Incinerator Stack (EPN 71TGINC), install, operate, calibrate,
and maintain a CEMS as specified in 40 CFR §60.106a(a), regardless
of whether these provisions otherwise apply; use an analyzer with
a minimum accuracy of ±2.5%, a dedicated totalizing gas flow
measurement system with an accuracy of ±5%, and temperature
indicator with an accuracy of ±1% convert data from all monitoring
devices to a common concentration, flow, pressure, and temperature
basis and calculate and record 15-minute and subsequent block one-hour
average SO2 emissions;
(4) continuous monitoring data collected in accordance
with requirements in this subsection must undergo an appropriate quality
assurance and quality control process and be validated for at least
95% of the time that the monitored emission point has emissions; an
owner or operator must utilize the most accurate data substitution
methodology available that is at least equivalent to engineering judgement
and replace all missing or invalidated monitoring data for the entire
period the monitored emission point has emissions; and
(5) minor modifications to monitoring methods may be
approved by the executive director. Monitoring methods other than
those specified in this section may be used if approved by the executive
director and validated by 40 CFR Part 63, Appendix A, Test Method
301. For the purposes of this subsection, substitute "executive director"
in each place that Test Method 301 references "administrator." These
validation procedures may be waived by the executive director or a
different protocol may be granted for site-specific applications.
Minor modifications that may be approved under this subsection include
increases in the frequency of monitoring and the replacement of parametric
monitoring with direct emissions monitoring with a CEMS provided appropriate
quality assurance control, accuracy specifications, and data validation
requirements are specified and no less stringent than monitoring requirements
for a comparable EPN in this division.
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