DAQ-2024-008513

m\E@"
UTAH DEPAHTMENT OF
E}W]RONMENTAL OUA.TTY
ljtrrbotyrdl.ly
Tesoro Refining &
Marketing Company LLCAPH 3 0 20?_4
April30,2024
Bryce Bird, Director
Utah Division of Air Quality
195 North 1950 West
P.O. Box 144820
Salt Lake city, uT 84114-4820
Hanct belirtereai
DMSION OF AIR QUAL]TY
HaNo Delrvrnpo
Re: New Source Performance Standard (NSPS)" Subpart Ja - October l. 2023 - March 30. 2024
Dear Mr. Bird:
Attached is Tesoro Refining & Marketing Company, LLC's NSPS Subpart Ja semi-annualreport as
required by 40 CFR 60.108a(d) and 40 CFR 60.7(c) for the Salt Lake City (SLC) Refinery.
This report addresses operations from October 1,2023 through March 30,2024 for the following sources:
o Allaffected refinery flares, including the North Refinery Flare, South Refinery Flare and the
Sulfur Recovery Unit (SRU) Flare.
o The refinery fuel gas system and Cogeneration Turbine & Heat Recovery Steam Generation
(HRSG) Systems, in accordance with the Utah PMz s SIP Subsection IX.H.l, which has been
approved by UDAQ.o The Fluidized Catalytic Cracking Unit (FCU), CO Boiler, Electrostatic Precipitator (ESP), and
Wet Gas Scrubber (WGS) for SOz, NOx, CO and PM, in accordance with refinery's Approval
Order DAQE-AN103350075-l 8 issued by UDAQ.
Refinery Flares:
The North and South refinery flares are served by a common Flare Cas Recovery System (FGRS). These
two flares serve all process units in the refinery, except for the SRU and the Tailgas Treatment Unit; these
two process units are served by a dedicated SRU Flare. These three flares have been modified under
$60.100a(c)( I ) and are therefore subject to NSPS Subpart Ja. This report addresses the following Work
Practice Standards at $60.103a(h), $60.103a(c)(l)(i), and $60.103a(c)(l)(ii) as applicable forthe
refinery's North, South, and SRU Flares during the reporting period.
Due to a shared FGRS, Tesoro is complying with the SOz work practice standard in $60.103a(cXl)(i) at
the North and South Flares by comparing cumulative SOz emissions from both flares to the 500 lb SOz
Root Cause Analysis (RCA) and Corrective Action Analysis (CAA) applicability trigger. Similarly,
Tesoro is complying with the Work Practice Standard at $60.103a(c)(l)(ii) by comparing cumulative flare
gas sent to the two flares against the RCA/CAA applicability trigger of 500,000 scf/24-hour period in
excess of the baseline scenarios identified in the refinery's NSPS Subpart Ja Flare Management Plan.
Tesoro is complying with the Work Practice Standard at $60.103a(h) by using a total sulfur analyzer in
lieu of a HzS analyzer at the SRU Flare, in accordance with $60.107a(a)(2)(v).
B-2-10335
The refinery most recently submitted an update to its NSPS Subpart Ja Flare Management Plan to USEPA
on August 28,2022. In accordance with $60.103a(b)(2), Tesoro has operated in accordance with the
latest updated plan during the reporting period.
During the reporting period, there were no exceedances of the 500 lb SOZl24-hour period Work Practice
Standard at $60. I 03a(c)( t )(i). There was one flaring event that exceeded the 500,000 scf/24-hour period
Work Practice Standard at $60.103a(c)(lXii), based on observed cumulative gas flared concurrently from
the North and South flares or SRU flare. This flare event is presented in the attached report and was a
result of a planned plantwide turnaround. Determination of flaring events that exceeded the 500,000
scf/24-hour period Work Practice Standard at $60.103a(c)( I )(ii) consider applicable alternative operating
scenarios established pursuant to $60. I 03a(aXaXii).
Details of any exceedances of the HzS 3-hour rolling average limit are included in the quarterly State
Electronic Data Reports.
Refinery FuelGas System:
Tesoro is also subject to requirements within NSPS Subpart Ja for the V-917 refinery fuel gas balance
drum. In accordance with the UDAQ-approved Utah PMz s Moderate Non-Attainment State
Implementation Plan (SIP) Section IX.H.l I (g)(ii), which applies to petroleum refineries, Tesoro shall
comply with specified applicable requirements within NSPS Subpart Ja for HzS content within refinery
fuel gas. There were no exceedances of the 365-day rolling average limit during the reporting period.
Details of any exceedances of the HzS 3-hour rolling average limit are included in the quarterly State
Electronic Data Reports for the 4th Quarter 2023 and I't Quarter 2024.
Cogeneration Turbine & HRSG Systems:
Tesoro has interpreted from the Utah PMz s Moderate Non-Attainment SIP that the East and West
Cogeneration Turbines are subject to the same aforementioned provisions as the V-917 fuel gas system.
Furthermore, SIP condition IX.H.l2(p)(iii)(c) applies specifically to the East and West Cogeneration
Turbines and allow use of a SOz/Oz or HzS CEMS. Each turbine fires a mixture of utility natural gas and
sweet fuel gas, generated from amine treating of sour fuel gas in the SRU. This fuel gas differs in
composition from that in the V-917 refinery fuel gas balance drum. In addition, downstream of each
turbine, a HRSG system is installed for steam production using the turbine exhaust flue gas and additional
refinery fuel gas from V-917. Tesoro operates a HzS Continuous Emissions Monitoring System (CEMS)
to measure the mixture of natural gas and fuel gas fired at the Cogen turbine sections; both Cogen process
trains (i.e. East and West) fire the same mixture of fuel, therefore the monitoring is achieved with one
analyzer. As noted previously, the refinery fuel gas fired at the HRSGs is monitored with the HzS CEMS
installed on the V-917 fuel gas drum. Therefore, Tesoro is complying with the existing HzS standard in
SIP Section IX.H. I I (e)(ii) and condition IX.H. I 2(pXiii)(c) by complying with $60. I 02a(g)( I Xii) for each
fuel gas mixture. This monitoring approach was conducted in accordance with the Custom Fuel
Monitoring Schedule Update to NSPS Subparts JlJaand GG, approved by EPA Region 8 on April 5,
201 8.
There were no exceedances of the HzS 365-day rolling average limit within $60.102a(g)(lXii) from the
East and West Cogeneration trains during the reporting period. Details of any exceedances of the HzS 3-
hour rolling average limit within $60.102a(g)(lXii) have been included in the State Electronic Data
Reports for the 4th Quarter 2023 and l't Quarter 2024.
FCU Regenerator/CO Boiler/ESP/WGS :
Tesoro is subject to requirements within NSPS Subpart Ja for the FCU affected facility, consisting of the
FCU Regenerator, CO Boiler, ESP, and WGS. Effective January l, 2018, this equipment is regulated by
Subpart Ja for PM, CO, and SOz. Stack testing was conducted to establish operating limits at the
Regenerator, ESP, and Wet Gas Scrubber for PM on April 8,2023; the most recent operating limits
became effective on May 3,2023.
Details of any exceedances of the applicable CO limit (corrected to 0% Oz) within $60.102a(b)(4) for the
FCU Regenerator/CO Boiler/ESP/WGS during the reporting period have been included in the State
Electronic Data Reports for the 4th Quarter 2023 and l't Quarter 2024. During the aforementioned
reporting period, any deviations from allowable operating limits within $60.102a(c)( I Xi) and
$60.102a(c)(lXii) for the FCU Regenerator/CO Boiler/ESP/WGS are included in the summary report
tables and attachment tables (if applicable).
Alignment with State Ouarterly Reports:
Monitoring system performance for all regulated CEMS and Continuous Parametric Monitoring Systems
(CPMS) at the North Flare (HzS, Flow and Total Sulfur), South Flare (HzS, FIow and Total Sulfur), SRU
Flare (Flow and Total Sulfur), FCU WGS (SOz, NOx, CO and O2), FCU CO Boiler Bypass Stack (SOz,
NOy, CO, and Ou) Y-917 FuelGas Balance Drum (HuS), East and West Cogeneration Turbine and HRSG
trains (shared HzS) required by NSPS Subpart Ja are reported per $60.7(c) with the State Electronic Data
Reports. These reports also address all CEMS QA/QC practices, including initial certification testing (i.e.
7-day drift test and initial Relative Accuracy Test Audits) and on-going Cylinder Gas Audits (CGAs) and
RATAs. Tesoro submitted reports for 4'r' Quarter 2023 and I't Quarter 2024. QAIQC downtime for the
CPMS for purposes ofNSPS Subpart Ja at the FCU Regenerator/CO Boiler/ESPAVGS, including Total
Power, Secondary Current, WGS Differential Pressure, WGS L/G Ratio and Total Coke-Burn are
included in this report.
Certifi cation Statement:
I certifu that this information was prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information submitted. Based
on my directions and my inquiry of the person(s) who manage the system, or the person(s) directly
responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete.
Please call Chris Kaiser at [phone] if you have any questions.
Sincerely,M
Dean P. Anderson
Vice President
Tesoro Refining & Marketing Company LLC
Attachments
cc: USEPA Region VIII
SusN4rrreo Vra CouRren
Subpart Ja Summary Report ((40 CFR 60.7(c), 40 CFR 60.108a(d)(1-7))
tll Signed statement, if applicable, is included on the verification sheet.
Unit: North Refinery Flare
(Served by Shared
Flare Gas Recovery
with South Flare)
Parameter: Hydrogen Sulfide
(HzS)
Reporting Period: October 1,2023 -
March 30,2024
Work Practice 162 ppmvd HzS,3-hour
Standard: rolling average
Periods of Deviation from Work Practice
Standardttl:
See submitted State Electronic Data 4b Quarter
2023 and I't Quarter 2024
Periods for which HzS monitoring data are not
availabletrl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and l't Quarter 2024
Subpart Ja Summary Report ((40 CFR 60.7(c), 40 CFR 60.108a(d)(1-7))
tll Signed statement, if applicable, is included on the verification sheet.
Unit: South Refinery Flare
(Served by Shared
Flare Gas Recovery
with North Flare)
Parameter: HzS
Reporting Period [rl: October 1,2023 -
March 30,2024
Work Practice 162 ppmvd HzS, 3-hour
Standard: rolling average
Periods of Deviation from Work Practice
Standardtrl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and l't Quarter 2024
Periods for which HzS monitoring data are not
available trl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
Subpart Ja Summary Report ((10 CFR 60.7(c), 40 CFR 60. l08a(d)(l-7))
Unit: North and South
Refinery Flares (Served
by Shared Flare Gas
Recoverv)
Parameter: Sulfur Dioxide (SOz)
Reporting Period: October 1,2023 -
March 30,2024
Work Practice 500 lb SOz/24-hour
Standards: period, or 500,000 scf
flared above baseline
flare flow ltUz4-hour
period.
Each standard applies
as sum from both
flares.
Periods of Deviation from Work Practice
Standards tl'21:
Events identified below (SO2 and/or flare
flow)[3]:
Event #l - flare flow:
2l 13124 I 6:00 till 3 128124 2l:00
Periods for which Total Sulfur (TS) and flare
flow monitoring data are not available t2l:
See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
t1l In accordance with 40 CFR 60.103a(c)(l)(ii), the work practice standard is set at 500,000 scf
in excess of the baseline flow reported in the NSPS Ja Flare Management Plan. The baseline
flow to the north and south flares is 0 scf/hr during normal operations. Therefore, the work
practice standard is set at 500,000 scf per 24-hour period during normal operations. Four
alternative baseline scenarios are identified in the NSPS Ja Flare Management Plan and the
work practice standard is set at 500,000 scf above the applicable alternative baseline per 24-
hour period only during the applicable scenario.
t2) Signed statement, if applicable, is included on the verification sheet.
t3l Time period indicate entire period 24-hour average remained over threshold.
Subpart Ja Summary Report ((40 CFR 60.7(c), 10 CFR 60.108a(d)(1-7))
NSPS Ja Flare RCA and CAA Summary per $$60.108a(dX5) and (cX6)
Section 1.' Background Information
(Complete Sections I through 3 for each 24-hour period ofdischarge)r
Refinery Name: Tesoro Refining and Marketing Company LLC, Salt Lake City Refinery
Refinery Address: 474 West 900 North, Salt Lake City, UT 84103
Contact
Report Date: 412124 Telephone: [phone]
Contact E-mail
Report Contact: Chris Kaiser Address: cUt<aiser@maratno
Report Type (lnitial/Follow-up) I4!!i41
If Follow-up, list dates of
previous report(s):N/A
Section 2: Event Description
Emission Source (flare): North and South Flare
Description of flaring
event2: Event #l : Ql2024 TAR planned plantwide outage
Incident Start Date3: 211312024 Time (24-hour clock) 3: l6:00
Incident End Date3: 312812024 Time (24-hour clock) 3: 21 :00
If Planned Startup/Shutdown, were Flare Management Plan (FMP) procedures Yes, FMP procedures
followed? (YNf were followed. This
was a planned, plant-
wide turnaround.
(lf incident was due to a planned startup/shutdown and FMP procedures were followed, no Root Cause Analysis or Corrective
Action description is necessary, do not complete Sections 3 and 4 of this report form.)a
lf incident was not due to planned startup or shutdown, provide a brief explanation of event.a
Event was a planned plant-wide turnaround. These events are scheduled approximately every three years.
Daily flaring exceeded 500 Mscf intermittently during this period.
r40 CFR 60. l08a(c)(6)
240 CFR 60. l08a(c)(6)(i)
340 CFR 60. l08a(c)(6)(ii)
440 CFR 60. l08a(c)(6)(xi)
Subpart Ja Summary Report ((40 CFR 60.7(c), 40 CFR 60.108a(d)(1-7))
Cumulative quantity of gas discharged during this 24-hour period (scf;s: 22,487.5 Mscf over 44 days
(or 509 Mscf daily average)
Was the cumulative quantity of gas discharged >500,000 scf over baseline
during this 24-hour period? (Y/)rl)s:
(500,000 scf for the North & South Flares since the baseline is 0 scf, 528,800 scf for the
SRU Flare since the baseline is 28,800 scO Yes
Did SOz emissions exceed 500 lb during this 24-hour period? 6'7
lf yes,
List cumulative quantity of SOz emissions during each 24-hour period
(lb, assumin g 99% sulfur conversion)7:
And
List cumulative quantity of HzS emissions during each 24-hour period
(lb, assuming 1o% uncombusted)7:
And
List total sulfur concentration (ppmvd) ar HzS and estimated total sulfur
in fuel during each 24-hour period that exceeded that threshold
(ppmv/ppmv)6:
No
N/A
N/A
N/A
Steps taken to limit the emissions during the discharge8:
Flare Management Plan procedures were followed.
Note that the reported cumulative quantity of gas includes inert constituents. For example, the time weighted
average hydrogen content of the flare gas during this event was 32 mol%o. The flare volume reported against
facility Consent Decree flare caps was considerably lower during this event.
540 CFR 60. l08a(c)(6) & (6)(iii)
640 CFR 60. l08a(c)(6)(iv)
740 CFR 60. 108a(c)(6)(vii)
840 CFR 60. l08a(c)(6)(viii)
Section 3: Root Cause Analysisro
(complete within 45 days of triggering event)
Description of root cause analysis:
N/A. Planned startup/Shutdown and FMP measures were followed.
Was cause same as that identified in a previous flaring incident?ro (YN) N/A
lf yes, identifo previous incident date(s):
ro40 CFR 60. I 08a(cX6Xix)
N/A
Subpart Ja Summary Report ((10 CFR 60.7(c), 40 CFR 60.108a(d)(1-7))
Section 4: Corrective Action Analysisrr
(Complete within 45 days of triggering event):
N/A. Planned startup/Shutdown and FMP measures were followed.
Planned for completion more than 45 days after triggering event:
Corrective Action(s)Schedule for Completion
N/A N/A
' '40 CFR 60. l08a(c)(6)(x) & (ix)
Subpart Ja Summary Report ((40 CFR 60.7(c), 40 CFR 60.108a(d)(I-7))
[]: In accordance with 40 CFR 60.107a(a)(2Xv), a total sulfur monitor is used in lieu of a
hydrogen sulfide monitor.
tzl Signed statement, if applicable, is included on the verification sheet.
Unit: SRU Flare (no Flare
Gas Recovery)
Parameter: HrS
Reporting Period: October 1,2023 -
March 30,2024
Work Practice 162 ppmvd TS as HzS,
Standardttl: 3-hour rolling average
Periods of Deviation from Work Practice
Standardtrl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and 1't Quarter 2024
Periods for which TSt'l monitoring data are not
availablet2l:
See submitted State Electronic Data Reports 4h
Quarter 2023 and I't Quarter 2024
Subpart Ja Summary Report ((40 CFR 60.7(c), 40 CFR 60.108a(d)(1-7))
Unit: SRU Flare (no Flare
Gas Recovery)
Parameter: SOz
Reporting Period: October 1,2023 -
March 30,2024
Work Practice 500 lb SOz/24-hour
Standard: period, or 500,000 scf
flared above baseline
flare flowtrl/24-hour
period.
Periods of Deviation from Work Practice
Standardst2l:
Event identified below (SOz and/or flare flow):
None during reporting period.
Periods for which TS and flare flow monitoring
data are not availablet2l :
See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
[]: In accordance with 40 CFR 60.103a(c)(l)(ii), the work practice standard is set at 500,000 scf
in excess of the baseline flow reported in the NSPS Ja Flare Management Plan. The baseline
flow to the SRU Flare is 28,800 scf/hr. Therefore, the work practice standard is set at
528,800 scf per 24-how period.
l2): Signed statement, if applicable, is included on the verification sheet.
Unit: Y-917 Refinery Fuel
Gas Balance Drum
Parameter: HrS
Reporting Period: October 1,2023 -
March 30,2024
Emissions Limit: 162 ppmvd HzS,
3-hour Rolling Average
Periods of Excess Emissionstrl See submitted State Electronic Data Reports 4th
Quarter 2023 and 1't Quarter 2024
Periods for which HzS monitoring data are not
availabletll:
See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
Reporting Period: October 1,2023 -
March 30,2024
Emissions Limit: 60 ppmvd HzS,
365-day Rolling
Averase
Periods of Excess Emissionstrl No excess emissions during the reporting period
For each Excess Emissions event:
Explanation of the Exceedance:
No excess emissions during the reporting period
Whether the exceedance was concurrent
with a startup, shutdown, or malfunction of
an affected facility or control system:
No excess emissions during the reporting period
A description of the action taken, if any:No excess emissions during the reporting period
Periods for which HzS monitoring data are not
lvailabletrl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
[]: Signed statement, if applicable, is included on the verification sheet.
Unit: East Cogen & West
Cogen Turbines
Parameter: HrS
Reporting Period: October 1,2023 -
March 30,2024
Emissions Limit: 162 ppmvd HzS,
3-hour Rolling
Averase
Periods of Excess EmissionsU See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
Periods for which HzS monitoring data are not
availabletrl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and l"t Quarter 2024
Reporting Period: October 1,2023 -
March 30,2024
EmissionsLimit:
5:i-ooilfl5ii;*a',,..ur"
Periods of Excess Emissionstrl No excess emissions during the reporting period
For each Excess Emissions event:
Explanation of the Exceedance:
No excess emissions during the reporting period
Whether the exceedance was concurrent
with a startup, shutdown, or malfunction of
an affected facility or control system:
No excess emissions during the reporting period
A description of the action taken, if any:No excess emissions during the reporting period
[]: Signed statement, if applicable, is included on the verification sheet.
UNit: FCU _ WGS Parameter: CO
Reporting Period: October 1,2023 -
March 30,2024
Emissions Limit: 500 ppmvd CO,
corrected to 0%o Oz
l-hr Block Ar.rus.
Periods of Deviation from Emissions Limittrl:See submitted State Electronic Data Reports 4th
Quarter 2023 and I't Quarter 2024
Periods for which CO monitoring data are not
availabletrl:
See submitted State Electronic Data Reports 4th
Quarter 2023 and 1't Quarter 2024
[1]: Signed statement, if applicable, is included on the verification sheet.
UNit: FCU - ESP Parameter: Total Power
Reporting Period: October 1,2023 -
March 30,2024
Operating Limitstu: 0 kW
4ll limits as 3-hour
,ollins rveros?.
I ) Duration of Excess Emissions in reporting period
lue to:
l) CMS downtime in reponing period due to:
a) Startup/ 0 hr
shutdown
a) Monitor equipment 0.0 hr
malfunctions
b) Control equipment 0 hr
problems
b) Non-Monitorequipment
malfunctions
hr0.0
hrc) Process Problems hr0.0c) Quality assurance
calibration
d) Other known causes 0 hr d) Other known causes 0.0 hr
e) Unknown causes 0 hr e) Unknown causes 0.0 hr
Z) Total duration ofexcess 0 hr
:missions:
2) Total CPMS downtime: 0.0 hr
3) Total Ooeratins Hourslrl 3.869 hr 3) Total Ooeratine Hourslrl 3.869 hr
1) Excess Emissions, as 0.0 %
)ercentage of operating time
:%\
4) CPMS downtime, as 0.00 %
percentage of operating time (%)
For each Excess Emissions event:
Date ofthe Exceedance:No exceedances during reporting period
Explanation of the Exceedance:
Whether the exceedance was concurrent with a
startup, shutdown, or malfunction of an affected
facility or control system:
A description ofthe action taken, ifany:
For any periods for which monitoring data are not
available, any changes made in operation of the
emission control system during the period of data
unavailability which could affect the ability of the
system to meet the applicable emission limit.
Minimum allowable Total Power was zero so no
concern with meeting emission limit.
[]: $60.102a(c)(l)(i) requires for FCUs controlled by an ESP to maintain the 3-hour rolling
average total power and secondary current above the level established during the most recent
performance test.
UNit: FCU - ESP Parameter: Secondary Current
Reporting Period: October 1,2023 -
March 30,2024
Operating Limitstu: 0 Amps
All limits as 3-hour
rollino dverase
l) Duration of Excess Emissions in reporting period
due to:
l) CMS downtime in reporting period due to:
a) Starhrp/shutdown 0 hr a) Monitor equipment
malfunctions
0.0 hr
b) Control equipment 0 hr
problems:
b) Non-Monitorequipment
malfunctions
0.0 hr
c) Process Problems 0 hr c) Quality assurance
calibration
0.0 hr
d) Other known causes 0 hr d) Other known causes 0.0 hr
e) Unknown causes 0 hr e) Unknown causes 0.0 hr
2) Total duration ofexcess 0 hr
emissions:
2) TotalCPMS downtime: 0.0 hr
) Total Ooeratins Hourslrl 3.869 hr 3) Total Operatins Hourslrl 3,869 hr
l) Excess Emissions, as 0.0 %
)ercentage of operating time (%)
1) CPMS downtime, as 0.00 %
)ercentage of operating time
'%)
For each Excess Emissions event:
Date ofthe Exceedance:),lo exceedances during reporting period
Explanation of the Exceedance:
Whether the exceedance was concurrent with a
startup, shutdown, or malfunction of an affected
facilitv or conffol system:
A description ofthe action taken, ifany:
For any periods for which monitoring data are not
available, any changes made in operation of the
emission control system during the period of data
unavailability which could affect the abiliry of the
svstem to meet the aoolicable emission limit.
Minimum allowable Secondary Current was zero so no
concern with meeting emission limit.
[]: $60.102a(c)(1)(i) requires for FCUs controlled by an ESP to maintain the 3-hour rolling
average total power and secondary current above the level established during the most recent
performance test.
Unit: FCU Regenerator Parameter: Coke-Burn
Reporting Period: October 1,2023 -
March 30,2024
OperatingLimitstrl: 20,647lblhr
4ll limits as daily
averdge
1) Duration of Excess Emissions in reporting
oeriod due to:
l) CMS downtime in reporting period due to:
a) Startup/ 0 hr
shutdown
a) Monitor 0.0 hr
equipment
malfunctions
b) Controlequipment 0 hr
problems:
b) Non-Monitor 0.0 hr
equipment
malfunctions
c) Process Problems 0 hr c) Quality assurance 0.0 hr
calibration
d) Other known 0 hr
causes
d) Other known 0.0 hr
causes
e) Unknown causes 0 hr e) Unknown causes 0.0 hr
2) Total duration of 0 hr
3xcess emissions:
2) Total CPMS 0.0 hr
Jowntime:
3) Total Operating 3,869 hr
Hourstll
3) Total Operating 3,869 hr
Hourstll
1) Excess Emissions, as 0.0 %
cercentage of operating
time (%o\
1) CMS downtime, as 0.00 %
percentage of operating
time (%)
For each Excess Emissions event:
Date ofthe Exceedance:No exceedances during reporting period
Explanation of the Exceedance:
Whether the exceedance was concurrent
with a startup, shutdown, or malfunction of
an affected facilitv or control system:
A description ofthe action taken, ifany:
For any periods for which monitoring data are
not available, any changes made in operation of
the emission control system during the period of
data unavailability which could affect the ability
of the system to meet the applicable emission
limit.
No downtime during reporting period
[]: $60.102a(c)(lxii) requires the daily average exhaust coke bum-off rate not exceed the level
established during the most recent performance test.
Jnit: WGS Parameter: Differential Pressure
R.eporting Period: October 1,2023 -
March 30,2024
Operating Limitstrl 4.9 in HzO
All limits as 3-hour
rollins cNerase
l) Duration of Excess Emissions in reporting
oeriod due to:
l) CMS downtime in reporting period due to:
a) Startup/ 0 hr
shutdown
a) Monitor equipment 0.0 hr
malfunctions
b) Control equipment 0 hr
problems
b) Non-Monitor equipment 0.0 hr
malfunctions
c) Process Problems 0 hr c) Quality assurance 0.0 hr
calibration
d) Other known causes 0 hr d) Other known causes 0.0 hr
e) Unknown causes 0 hr e) Unknown causes 0.0 hr
Z) Total duration ofexcess 0 hr
:missions:
2) TotalCPMS downtime: 0.0 hr
]) Total Ooeratins Hourstrl 3.869 hr 3) Total Ooeratins Hourstrl 3.869 hr
[) Excess Emissions, as 0.0 %
rercentage of operating time,%\
4) CPMS downtime, as 0.00 %
percentage of operating time
(o/n\
For each Excess Emissions event:
Date ofthe Exceedance:No exceedances during reporting period
Explanation of the Exceedance:
Whether the exceedance was concurrent with
a startup, shutdown, or malfunction of an
affected facility or control system:
A description of the action taken, if any:
For any periods for which monitoring data are
rot available, any changes made in operation of
:he emission control system during the period of
lata unavailability which could affect the ability
rf the system to meet the applicable emission
timit.
No downtime during reporting period
[]: Operating limits for DP were established during performance testing. Operating limits determined by
this testing are included in this Semiannual Report, and these limits are effective upon submittal of the
report to UDAQ.
Jnit: WGS Parameter: L/G Ratio
Reporting Period: October 1,2023 -
March 30,2024
Operating Limitstrl 62.9 gal/lvlscf
All limits as 3-hour
rollins cverase
l) Duration of Excess Emissions in reporting
oeriod due to:
I ) CMS downtime in reporting period due to:
a) Startup/ 0 hr
shutdown
a) Monitor equipment 0.0 hr
malfunctions
b) Control equipment 0 hr
oroblems
b) Non-Monitor equipment 0.0 hr
malfunctions
c) Process Problems 0 hr c) Quality assurance 0.0 hr
calibration
d) Other known causes 0 hr d) Other known causes 0.0 hr
e) Unknown causes 0 hr e) Unknown causes 0.0 hr
2) Total duration of excess 0 hr
:missions:
2)Total CPMS downtime: 0.0 hr
l) Total Operatins Hourstrl 3.869 hr 3) Total Operatins Hourstrl 3"869 hr
1) Excess Emissions, as 0.0 %
rercentage of operating time
,YO\
4) CPMS downtime, as 0.00 %
percentage of operating time
(%\
or each Excess Emissions event:
Date ofthe Exceedance:No exceedances during reporting period
Explanation of the Exceedance:
Whether the exceedance was concurrent with
a startup, shutdown, or malfunction of an
affected facility or control system:
A description of the action taken, if any:
ior any periods for which monitoring data are
rot available, any changes made in operation of
:he emission control system during the period of
lata unavailability which could affect the ability
)f the system to meet the applicable emission
imit.
No downtime during reporting period
[]: Operating limits for DP were established during performance testing. Operating limits determined by
this testing are included in this Semiannual Report, and these limits are effective upon submittal of the
report to UDAQ.
UTAH DEPARTMENT
ENVIRONMENTAL QUALITY
DIVISION OF AIR OUALITY