DAQ-2024-007243

333 W. Center Street . North Salt Lake Utah 84054 . 801.296.7700 . www.bigwestoil.com
January 30,2024
CERTIFIED MAIL
RETURN RECErpr NO. 9589 0710 5270 0120 7606 83
Bryce Bird, Director
Utah Division of Air Quality
Utah Department of Environmental Quality
UTAH DEPARTMEI.IT OF
ENVIRONMENTAL QUALITY
i:'"
DIVISION OF AIR OUALITY
195 North 1950 West
P.O. Box 144820
salt Lake city, uT 841144820
RE: 40 CFR 60 Subparts J and Ja, Semiannual Compliance Report - 2od Ha,lf 2023
Dear Mr. Bird,
Attached is Big West Oil LLC's (BWO) semi-annual report for 40 CFR 60 Subparts J and Ja, as required
by 40 CFR 60.107(c) and 60.108a(d) for the refinery located in North Salt Lake, Utah. Equipment
identified in this report is regulated by Utah Department of Air Quality (UDAQ) Approval Order DAQE-
AN101220077-z2datedJanuary 13,2022. Thisreportaddressesoperationsfrom July 1,2023, through
December 31,2023, for the following sources:
o All affected refinery flares, consisting of the South Refinery Flare and West Refinery Flare.
These sources are subject to NSPS Subpart Ja in accordance with Utah PMro and PMz s State
Implementation Plan (SIP) Sections IX.H.l.g.v.A and IX.H.1 1.g.v.A, respectively.
o The refinery fuel gas system is subject to NSPS Subpart Ja for H2S in accordance with Utah
PMlq and PM2 5 SIP Sections IX.H.1.g.ii.A and IX.H.1 1.g.ii.A, respectively.
o The Millisecond Catalytic Cracking Unit (MSCC) Regenerator is subject to NSPS Subpart J for
all regulated pollutants (CO, SOz, and PM) per the 2013 BWO Consent Decree.
Refinerv Flares:
The South and Westprocess flares serve all process units in the refinery and are subject to 40 CFR 60
Subpart Ja. Each flare is subject to the following Work Practice Standards:
o $60.I 03a(h): 162 ppm H2S on a 3-hour rolling average;
r $60.103a(c)(l)(i): 500 lb SOz emitted from a flare in any 24-hour period;
. $60.103a(c)(l )(ii): Discharge to a flare in excess of 500,000 scf above the baseline in any 24-hour
period.
This report addresses the standards at $60.103a(cXlXi) and (ii). During the reporting period, there were
no flaring events that required completion of Root Cause Analysis and Corrective Actions Analysis per
$60.103(c)(1)(i)or(ii). DetailsofanyexceedancesoftheHzS3-hourrollingaveragelimitareincluded
in the quarterly State Electronic Data Reports (SEDR) submitted to UDAQ for purposes of UAC R307-
170-9 and are therefore not addressed in this report.
Amine Unit/Refinerv Fuel Gas Svstem:
BWO's Amine System/Refinery Fuel Gas System is subject to requirements within 40 CFR 60 Subpart
Ja. In accordance with Utah PM2 s SIP Section IX.H.l I (g)(ii)(A), BWO shall comply with specified
B-2-10122
applicable requirements within 40 CFR 60 Subpart Ja for HzS content within refinery fuel gas. This
includes the following limits (within $60.102) and work practice standards (within $60.103):
o $60.102a(g)(l)(ii): 162 ppmvd on a 3-hour rolling average basis;
o $ 60.102a(g)(1)(ii): 60 ppmvd on a 3 65-day rolling average basis (same citation as 3 -hour rolling
average limit).
. $60.103a(c)(2): each exceedance of the 162 ppmvd HzS limit if the SO2 discharge to the
atmosphere is 227 kg (500 lb) greater than the amount that would have been emitted if the
emissions limits had been met during one or more consecutive periods of excess emisions or any
24-how period, whichever is shorter.
During the reporting period, there were no events that required completion of Root Cause Analysis and
Corrective ActionsAnalysis per $60.103a(c)(2). Details of any exceedances of the emissions limits at
$60.102a(g)(l[ii) are includedin the quarterly SEDRs submittedto UDAQ forpurposes of UAC R307-
170-9 and, therefore, are not addressed in this report.
MSCC Reqenerator:
BWO operates the MSCC Regenerator, which is subject to 40 CFR 60 Subpart J for PM, CO, and SO2.
The MSCC is subject to the following emissions limits and work practice standards:
o $60.102(a)(l): 1.0 lb PN,{/1000-lb coke bum;
e $60.102(aX2): 30o/oopacity on a six-minute average, except for one 6-minute reading per hour;
o $60.103(a): 500 ppmvd CO on a one-hour average;
o $60.104(b)(1): 50 ppmvd SO2 on a7-day rolling average;
o $60.104(d): A minimum of 22 valid days of data shall be obtained per 30 rolling successive
calendar days when complying with $60.104(bX1).o $60.105(a)(13): Additional monitoring requirements if insufficient valid monitoring data is
available for purposes of $60. I 04(d).
This report addresses any deviations for the SOz limit at $60.104(bXl) and to the monitoring work
practice standards at $60.104(d) and $60.105(aXl3).
Evaluation for compliance with the PM limit established in $60.102(a)(1) is determinedvia performance
testing. This performance test was conducted on December 15,2023, and is included in BWO's 2nd
Semiannual Consent Decree (CD) Report for2023 submitted to UDAQ. The pertinent information was
uploaded to the EPA's Electronic Reporting Tool (ERT) on January 24,2024, under the report name
"63.1575(K)(l ) Results of the Performance Test." Details of any exceedances of the limits at
$60. 102(aX2), $60.103(a), and $60.104(bxl ) are included in quarterly SEDRs submitted to UDAQ for
purposes of UAC R307-170-9 and are excluded from this report unless noted otherwise.
Alimment with State Quarterlv Reports:
Monitoring systemperformance for all regulated continuous emission monitoring systems (CEMS) and
continuous opacity monitoring systems (COMS) for the following sources and pollutants are reported per
$60.7(c) and R307-170-9 as part of the SEDRs submitted to UDAQ:
o South Flare (H2S, Total Reduced Sulfur);
r West Flare (H2S, Total Reduced Sulfur);
. MSCC Regenerator (SOz, CO, 02, and Opacity);
o Amine System/Refinery Fuel Gas System (HrS).
These reports also address all CEMS and COMS downtime, cylinder gas audits (CGAs), and relative
accuracy test audits (RATAs). BWO has submitted SEDRs for the 3.d and 4th Quarters of 2023.
Certification Statement:
I certify that this information was prepard under my direction or supervision in accordance with a system
designed to assure that qualified pesonnel 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
tl*>l z+
ljate
-
Refinery Manager
Should you have any questions regarding this report or the data submitte4 please feel free to contact me
at [phone] or email at [e-mail].
Sincerely,
%%Tfr^//sr
Brady Miller
Environmental Engineer
CC: CERTIFIED MAIL
RETURN RECETPT NO. 9589 0710 5270 0120 7606 76
Director, Air and Toxics Technical Enforcement Program
Office of Enforcement, Compliance and Environmental Justice
Mail Code 8ENF-AT
1595 Wynkoop Street
Denver, CO 80202-1129
40 CFR 60 Subpart Ja: Summary Report
IJTAH D!:Pr\lll-lliL:tiI OF
ENVII lONtv'lEt'iTAL QUALITY
DIVISION OF AIR QUALIT\
40 CFR 60 Subpart Ja Summary Report
40 CFR 60 Subpart Ja Flare RCA and CAA Summary per $$60.108a(d)(5) and (c)(6)
Section 1: Event Description and Release Information
Complete Sectron l tor each 24 hour period of discha
Reoortins Element ResDonse
Emission Source (flare)
Description of flaring event
40 CFR 60.108a(cX6Xi)
N/A - No exceedances during the reporting period.
Incident Start Date
40 CFR 60. 108a(c)(6Xii)
N/A - No exceedances during the reporting period.
Incident Start Time
(24-hour clock)
40 CFR 60. 1 08a(c)(6)(ii)
N/A - No exceedances during the reporting period.
Incident End Date
40 CFR 60. l08a(cX6Xii
N/A - No exceedances during the reporting period.
Incident End Time
(24-hotr clock)
40 CFR 60. l08a(cX6Xii)
N/A - No exceedances during the reporting period.
It' Planned Startup/Shutdown,
were Flare Management Plan
(FI\P) procedures followed?
(YesA.{o)
(If incident wa^s due to a planned
startup/shutdown and FMP procedures
were followed, no Root Cause Analysis
or Corective Action description is
necessary, do notcomplete Sections 2
and 3 of this report form.)
40 CFR 60. l08a(c)(6)(xi)
N/A - No exceedances during the reporting period.
If incident was not due to planned
starhrp or shutdown, provide a
brief explanation of event.
40 CFR 60. l08a(c)(6Xxi)
N/A - No exceedances during the reporting period.
Cumulative quantity of gas
discharged during this 24-hour
period (scfl. or if duration
exceeds 24hr,the quantity sent to
flare for each 24-hour period.
40 CFR 60.108a(o)(6) and (6)(iii)
N/A - No exceedances during the reporting period.
Was the cumulatlve quantrty ot
gas discharged >500,000 scfover
baseline during 24-hour
period(s)? (Yes/Ittro)
Primary South Flare
Baseline : j23,000 scf/24-hr.
RCA Trigger : 823,000 scf/24-hr
Primary West Flare
Baseline : 323,000 scf/24-hr
RCA Trigger : 823,000 scfl24-hr
See NSPS Ja FMP for Alt. Baselines.
40 CFR 60. 108a(cX6)&(6)(iii)
N/A - No exceedances during the reporting period.
Did SO, emissions exceed 500 lb
during this 24-hour period?
40 CFR 60. I 08a(c)(6)(iv)
40 CFR 60- I 08a(cX6Xvii)
N/A - No exceedances during the reporting period.
40 CFR 60 Subpart Ja Summary Report
Reoortins Element Response
If yes:
List cumulative quantity of
SO2 emissions during each24-
hour period (lb, assumin g 99%
sulfur conversion):
.........*--0_.-c_f, B_.6-0_,.1_0_$.a{e)ffj-v. j!).
AND
List cumulative quantity of
H2S emissions during each24-
hour period (lb, assuming I o/o
uncombusted):
40 CFR 60. I 08a(cX6Xvii)
N/A - No exceedances during the reporting period.
N/A - No exceedances during the reporting period.
AND
List total sulfur concentration
(ppmvd) arH2S and estimated
total sulfur in fuel during each
24-hour period that exceeded
that threshold (ppmv/ppmv):
40 CFR 60.108a(cX6Xiv)
N/A - No exceedances during the reporting period.
Describe steps taken to limit the
emissions during the discharge
40 CFR 60. l08a(c)(6)(viii)
N/A - No exceedances during the reporting period.
Section 2: Root Cause Analysis - 40 CFR 60.108a(c)(6)(ix)
lete Section 2 within 45 days o event
Reoortins Element Resoonse
Description of root cause analvsis NA - No exceedances during the reportine period.
Was cause same as that identified
in a previous flaring incident?
(Yes,t,lo)
NA - No exceedances during the reporting period,
Section 3: Corrective Action Analysis - 40 CFR 60.108a(c)(6)(x)
Com Section 3 within 45 davs o ng event
Reportins Element Resoonse
Descrrptron of correctrve
action(s) completed within the 45
davs followins the discharse
N/A - No exceedances during the reporting period.
For corrective action(s) not
already completed, a description
o f proposed corrective action(s), a
schedule for implementation.
including proposed
commencement and completion
dates
N/A - No exceedances during the reporting period.
Attachment Two:
40 CFR 60 Subpart J: Summary Report
40 CFR 60 Subpart J Summary Report
Section 1: Excess Emissions Event Description and Corrective Action - 40 CFR 60.107(c)(3)
For each 7-day period during which an exceedance has occurred as defined in 40 CFR 60. l0a(cX I )(i)
NOTE: Any exceedance that requires reporting in accordance with 40 CFR 60. 107(3)(c)(i)-(iii) is
reported in the Utah Department of Environmental Quality ODAQ) State Electronic Data Reports
(SEDR) as identified in the cover letter, but for clarification purposes is also identified here.
Section2: Reporting Requirements for SOz Continuous Emissions Monitoring Systems - 40 CFR
60.107(cXa)
t.e., 50 ppmv SOz trom the MSCC Regenerator on a 7-day rollrng average basrs
Reoortins Element Resoonse
The date that the exceedance
occurred;
40 CFR 60.107(c)(3)(i)
N/A - No exceedances during the reporting period.
An explanation of the
exceedance;
40 CFR 60.107(cX3)(ii)
N/A - No exceedances during the reporting period.
Whether the exceedance was
concurrent with a startup,
shutdown, or malfunction of the
fluid catalytic cracking unit or
control system; and
40 CFR 60. 107(c)(3)(iii)
N/A - No exceedances during the reporting period.
A description of the corrective
action taken, if any.
40 CFR 60. 107(c)(3)(iv)
N/A - No exceedances during the reporting period.
sub.lect to 40 CIR 60.I04(bX t.e., 50 ppmv SO2 tiom the MSCC Regenerator
Renortins Element Response/Ap p lic ability
The dates for which and brief
explanations as to why fewer than
l8 valid hours of data were
obtained for the inlet continuous
monitoring system;
40 CFR 60.107(c)(4Xi)
Not applicable. BWO is subject to the 50 ppmv SO2 limit and does
not utilize an inlet continuous monitoring system.
The dates for which and brief
explanations as to why fewer than
l8 valid hours of data were
obtained for the outlet continuous
monitoring system;
40 CFR 60.107(cX4)(ii)
See submitted SEDRs as identified in the cover letter.
ldentlt'lcatron ot. trmes when
hourly averages have been
obtained based on manual
sampling methods;
40 CFR 60.107(cX4Xiii)
See submltted SbDKs as ldentltled ln the cover letter.
Identification of the times when
the pollutant concentration
exceeded full span of the
continuous monitoring system;
and
40 CFR 60. 107(c)(4)(iv)
See submitted SEDRs as identified in the cover letter.
40 CFR 60 Subpart J Summary Report
Reoortins Element Response/Applicabiliw
Description of any modifications
to the continuous monitoring
system that could affect the
ability of the continuous
monitoring system to comply
with Performance Specifications
2or3.
40 CFR 60.107(cX4Xv)
No modifications were made during the reporting period.
Results of daily drift tests and
quarterly accuracy assessments as
required under appendix F,
Procedure l.
40 CFR 60.107(cX4Xvi)
See Attachment 3 for all daily drift checks completed during the
reporting period. Rezults of quarterly/annual accuracy assessments
are included in the submitted SEDRs as identified in the cover
letter.
On July 22,2023, the MSCC CEMS experienced a loss of
communication with the data acquisition system (DAS) as reported
in the 3'd Quarter 2023 SEDR report. Communication between the
MSCC CEMS and DAS was restored at 8: 15 AM on July 22, 2203 .
The MSCC CEMS daily validation on Jrly 23,2023, passed
without instrument adiustment.
Section 3: Reporting Requirements for Sources Subject to Valid Data Requirement at 40 CFR
60.104(d) - 40 CFR 60.107(c &
Reportinq Element KesDonse
Any 30-day period in which the
minimum data requirements
specified in $60.104(d) are not
obtained. (i.e., any 30day periods
without 22 validdays of data per
30 rolling successive calendar
days period).
4() (-FR 6O lO7ln\/?\
No deviations from this work practice standard occurred during the
reporting period.
40 CFR 60 Subpart J Summary Report
Seetion 4: Evaluation of Changes to SOz Control System during CEMS Downtime- 40 Cf'R
r any perloos Ior wnrcR su
oxides emissions data are not
available, the owner or operator
of the affected facility shall
submit a signed statement
indicating if any changes were
made in operationof theemission
control system during the period
of data unavailability which couH
affect the abilityof the system to
meet the applicable emission
limit. Operations of the conhol
system and affected facility
during periods of data
unavailability areto be compared
with operation of the control
system and affected facility
before and following the period
of data unavailability.
No chanees in emission system operatron were made dunng
the periods of data unavailability identified within the 3d Quarter
2023 and4,n Quarter 2023 SEDRs submittedto UDAQ. See cover
letter for certification.
Attachment Three:
Results of all daily drift checks completed during the reporting period for MSCC
Regenerator SOz CEMS
MSCC Regenerator SO, CEMS
Daily Calibration Drift Check Results
qnalvzer: AT-178C
Date SO2 Zero Time
Zero Cylinder
Value
(PPM SOrl
Zero Result
(PPM SOrl
Zero
Difference
l%Errorl
iO2 Span Time
Span Cylinder
Value
(PPM SOr)
Span Result
(PPM SO2)
Span
Difference
l%Errorl
7rU2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 80.03 -3.2',\Yo
712t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 75.48 -6.24%
7t3t2023 5:'18 AM 0.00 0.00 0.00o/o 5122 AM 84.84 71.38 -8.97o/o
7t4t2023 5:18 AM 0.00 0.00 0.00o/o 5:224M u.84 81.73 -2.07%
71512023 5:'18 AM 0.00 0.00 0.00%5:22 AM 84.84 78.83 -4.01o/o
71612023 5:'18 AM 0.00 0.00 0.00%5:22 AM 84.84 73.44 -7.60%
7t7t2023 5:18 AM 0.00 0.00 0.007o 5..22 AM 84.U 80.54 -2.8704
7t8t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 81.99 '1.90o/o
719t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 78.20 4.43o/o
7t10t2023 5:'18 AM 0.00 0.00 0.00%5:22 AM 84.84 74.11 4.48%
7t1',U2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 75.05 -6.53%
7t12t2023 5:'18 AM 0.00 0.00 0.00o/o 5:224M 84.84 74.43 -6.94o/o
7t13t2023 5:'18 AM 0.00 0.00 0.00o/o 5:224M 84.84 84.50 -0.22o/o
711412023 5:18 AM 0.00 0.00 0.00%5:224M 84.84 83.02 1.21%
7115t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 81.54 -2.2OYo
7t16t2023 5:18 AM 0.00 0.00 0.00%5:21 AM 84.84 78.48 4.24o/o
7t17t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 75.84 -6.00%
7t18t2023 5:18 AM 0.00 0.00 1.42o/o 5:22 AM 84.84 81 .67 -2.12%
7119t2023 5:18 AM 0.00 0.00 0.12o/.5:22 AM 84.84 79.61 -3.48o/.
7t20t2023 5:'18 AM 0.00 0.00 0.75Yo 5:22 AM 84.84 75.13 -6.47%
7t21t2023 5:18 AM 0.00 0.00 1.24o/o 5:22 AM 84.84 80.47 -2.92%
7t22t2023
712312023 5:18 AM 0.00 0.00 0.00%5:224M 84.84 72.76 -8.06%
7t24t2023 5:18 AM 0.00 0.00 0.38%5:22 AM u.84 82.32 -'t.68%
7t25t2023 5:18 AM 0.00 0.00 0.007o 5:22 AM 84.44 79.94 -3.260/o
7t26t2023 5:'18 AM 0.00 0.00 0.007o 5:22 AM 84.84 79.12 -3.81o/o
7127t2023 5:18 AM 0.00 0.00 o.84%5:22 AM 84.84 76.61 -5.49%
7128t2023 5:18 AM 0.00 0.00 2.03o/"5:22 AM 84.84 83.3'l 1-02o/o
7t29t2023 5:18 AM 0.00 0.00 3.270/o 5:22 AM 84.84 82.93 1.27o/o
7t30t2023 5: t8 AM 0.00 0.00 o.52%5:22 AM 84.U 82.69 1.43o/o
7t31t2023 5:18 AM 0.00 0.00 0.98%5:22 AM 84.84 82.29 1.70V.
8t1t2023 5:18 AM 0.00 0.00 1.5204 5:22 AM 84.84 81.04 -2.53%
8t2t2023 5:18 AM 0.00 0.00 1 .140/o 5:22 AM 84.84 80.26 -3.06%
81312023 5:18 AM 0.00 0.00 0.91o/.5:22 AM 84.84 78.31 4.35o/"
81412023 5:18 AM 0.00 0.00 0.48o/o 5:224M 84.84 76.36 -5.65%
8t5t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 85.89 0.70%
8t6t2023 5:18 AM 0.00 0.00 0.00%5:224M 84.84 84.33 -0.34o/o
8n12023 5:'18 AM 0.00 0.00 0.00%5:224M 84.84 8'1 .56 -2.19o/o
81812023 5:18 AM 0.00 0.00 0.36%5:22 AM 84.84 82.47 158%
8t9t2023 5:18 AM 0.00 0.00 o.840 5:22 AM 84.84 81,87 1.98o/.
8t10t2023 5:18 AM 0.00 0.00 1.25o/o 5:22 AM 84.84 84.31 -0.35%
8111t2023 5:18 AM 0.00 0.00 1.570/o 5:22 AM 84.84 86.82 1.320/o
811212023 5:18 AM 0.00 0.00 1.24o/o 5:22 AM 84.84 85.51 0.45o/o
8t13t2023 5:18 AM 0.00 0.00 0.260/0 5:224M 84.84 84.33 -0.340/o
811412023 5:18 AM 0.00 0.00 0.80%5:224M 84.84 85.46 0.41o/o
811s12023 5:'18 AM 0.00 0.00 2.280k 5:22 AM 84.84 86.66 1.22o/o
8t16t2023 5:18 AM 0.00 0,00 2.74%5:22 AM 44.84 85.63 0.53%
811712023 5:18 AM 0.00 0.00 3.30o/o 5:22 AM 84.84 85.59 0.50%
8t1812023 5:18 AM 0.00 0.00 2.17%5:22 AM 84.84 85.46 0.42o/o
8t19t2023 5:18 AM 0.00 0.00 0.00%5:224M 84.84 82.15 1.79%
812012023 5:18 AM 0.00 0.00 0.00%5:224M 84.84 83.82 -0.68%
8t21t2023 5:18 AM 0.00 0.00 0.00o/o 5:22AM u.84 84.66 -0.12%
8t2212023 5:18 AM 0.00 0.00 0.'1304 5'.22 AM u.84 83.83 -0.670/o
Page L of 4
Analvzer: AT-178C
Date SO2 Zero Time
Zero Cylinder
Value
(PPM SOrl
Zero Result
(PPM SO2)
Zero
Difference
l%Errorl
SO, Span Time
Span Cylinder
Value
(PPM SOr)
Span Result
(PPM SOr)
Span
Difference
l%Errorl
8t2312023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 83,92 -O.620/"
8t24t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 85.63 0.53%
8t25t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 83.94 -0.60%
8t26t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 86.54 1.13%
812712023 5:18 AM 0.00 0.00 0.00%5:22 AM 84.84 86.03 O.79o/o
8128t2023 5:18 AM 0.00 0.83 0.00%5:22 AM 84.84 86.63 1.19Yo
8129t2023 5:18 AM 0.00 1.52 0.00o/o 5'.22 AM 84.84 88.40 2.380/o
813012023 5:18 AM 0.00 3.32 0.00o/o 5:224M 84.84 88.26 2.28To
813112023 8:17 AM 0.00 0.00 0.00%8:18 AM u.84 85.81 0.65o/o
9t1t2023 5:19 AM 0.00 1.84 0.00%5:22 AM 84.84 85.57 0.48%
9t2t2023 5:19 AM 0.00 2.12 0.00%5:224M 84.84 88.71 2.58Yo
91312023 5:19 AM 0.00 2.82 0.00%5:22 AM 84.84 89.30 2.97o/o
9t4t2023 5:19 AM 0.00 4.3S 0.00%5:224M 84.84 89.22 2.920
9t5t2023 5:19 AM 0.00 5.77 0.00%5:224M 84.U 91.85 4.67Yo
9t6t2023 5:19 AM 0.00 4.60 0.00%5:224M 84.U 91.78 4.63o/"
9nt2023 5:19 AM 0.00 7.15 0.00%5:224M 84.84 93.04 5.460/o
91812023 5:19 AM 0.00 0.00 0.00%5:22 AM 84.84 85.09 0.17o/o
91912023 5:19 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 84.95 0.07%
9t10t2023 5:19AM 0.00 2.30 1.640/"5:22 AM 84.84 89.16 2.880/o
9t1112023 5:'18 AM 0.00 2.89 1.93%5:23 AM 84.84 91 .61 4.510/,
9t12t2023 5:'19 AM 0.00 5.47 3.33olo 5:22 AM 84.84 91 .91 4.71%
9t13t2023 5:19 AM 0.00 5.35 4.42Yo 5:224M 84.84 93.08 5.49%
9t14t2023 5:19 AM 0.00 0.00 3.59o/o 5:22 AM u.84 85.00 0.'110/"
911512023 5:19 AM 0.00 0.00 0.00%5:22 AM 84.84 85.78 0.620h
9t16t2023 5:19 AM 0.00 0.00 0.00%5:22 AM 84.84 86.08 0.83%
9t1712023 5:19 AM 0.00 1.01 0.00%5:22 AM 84.84 47.41 1 .71o/"
9t1812023 5:9AM 0.00 2.34 1.56%5:224M 84.84 90.22 3.597o
9t19t2023 5:9AM 0.00 5.33 0.60%5:224M 84.84 90.83 3.99%
9t2012023 E.9AM 0.00 0.00 '1.350/o 5:22 AM 84.U 84.23 -0.41o/.
9t2112023 5:9AM 0.00 0.00 3.17%5:22 AM 84.U 84.57 -0.18o/o
9t22t2023 5:9AM 0.00 0.00 0.00%5:22 AM 84.84 84.35 -0.33%
9t23t2023 5:9AM 0.00 0.00 0.00%5'.22 AM 84.84 85.27 0.29o/o
9t24t2023 5:9AM 0.00 1.62 0.00o/o 5:22 AM 84.84 87.04 1.47o/o
9125t2023 5:9AM 0.00 2.20 0.00o/o 5:22 AM 84.84 88.46 2.41o/o
9126t2023 5:9AM 0.00 5.06 0.00%5:22 AM 84.84 89.46 3.08%
9t27t2023 5:20 AM 0.00 5.64 0.00%5:22 AM 84.84 92.05 4.800/o
9t28t2023 5:20 AM 0.00 0.00 0.00o/o 5'.22 AM 84.84 82.96 -'t.26%
9t29t2023 5:20 AM 0.00 0.00 0.12Yo 5:22 AM u.84 84.19 -O.43o/"
9t30t2023 5:20 AM 0.00 0.00 0.00o/o 5:22 AM u.84 87.19 1.57o/o
10t1t2023 5:20 AM 0.00 o.42 0.71o/.5:22 AM 84.84 87.20 1.58%
10t2i2023 5:20 AM 0.00 0.60 0.02%5:22 AM 84.84 87.75 '1.940/o
10t3t2023 5:20 AM 0.00 2.77 0.00%5:22 AM 84.84 88.14 2.20o/o
10t4t2023 5:20 AM 0.00 0.94 0.00%5:224M 84.84 85.16 0.21%
101512023 5:20 AM 0.00 o.22 0.00%5:224M 44.84 87.04 1.47%
10t6t2023 5:20 AM 0.00 0.00 0.00%5:224M 84.U 8'l .87 -1.98o/o
10nt2023 5:20 AM 0.00 0.00 0.00%5:22AM 84.84 82.32 -1 .680/o
'tot8t2023 5:20 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 8't.01 -2.56%
10t9t2023 5:20 AM 0.00 0.00 0.460/o 5:22 AM 84.84 80.50 -2.89o/o
101'to12023 5:20 AM 0.00 0.00 1.82o/o 5:22 AM 84.84 82.71 1.42o/o
10t1'U2023 5:20 AM 0.00 0.00 2.27o/o 5'.22 AM 84.84 84.68 -0.'11%
10t12t2023 5:20 AM 0.00 0.00 2.20o/o 5:22 AM 84.84 86.29 0.97o/o
't0t13t2023 5:20 AM 0.00 0.29 3.33%5:22 AM 84.84 83.85 -0.66%
10t14t2023 5:20 AM 0.00 0.00 0.06%5:22 AM 84.84 85.35 0.34o/o
10t15t2023 5:20 AM 0.00 1.20 0.260/o 5:22 AM 84.84 87.O2 1.45o/.
10t16t2023 5:20 AM 0.00 2.2',1 0.71%5:22 AM 84.84 89.69 3.23o/o
10t17t2023 5:20 AM 0.00 4.26 0.00%5:224M 84.84 89.91 3.38o/o
Page 2 of 4
Analvzer: AT-178C
Date SO2 Zero Time
Zero Cylinder
Value
(PPM SOrl
Zero Result
(PPM SOr)
Zerc
Difference
lloErrorl
SO2 Span Time
Span Cylinder
Value
(PPM SOr)
Span Result
(PPM SO2)
Span
Difference
l%Er-rorl
1011812023 5:20 AM 0.00 4.08 0.00%5:22 AM 84.84 90.60 3.84%
10t't9t2023 5:20 AM 0.00 5_33 0.00%5:22 AM 84.84 89.82 3.32o/o
10t19t2023 8:'1 '1 AM 0.00 0.47 0.00%8:13 AM 84.84 85.57 0.36%
1012012023 5:20 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 82.29 1.70o/o
10t21t2023 5:20 AM 0.00 0.00 0.00o/o 5:22 AM 84.84 81.73 -2.O7Y"
10t22t2023 5:20 AM 0.00 0.00 0.00o/o 5:224M 84.84 82.37 1.650/0
'1o123t2023 5:20 AM 0.00 0.00 0.00o/o 5:224M 84.84 82.09 -1.84%
10t24t2023 5:20 AM 0.00 0.00 0.00o/o 5:224M u.B4 83.64 -0.80%
10125t2023 5:20 AM 0.00 0.83 0.75o/o 5:22 AM u.84 86.14 0.87o/o
10t26t2023 5:20 AM 0.00 1.41 0.00%5:22 AM 84.84 87.16 1.55o/o
10t27t2023 5:20 AM 0.00 0.00 o.440/"5:22 AM 84.84 84.63 -o.140/
't0t28t2023 5:20 AM 0.00 2.14 1.65%5:22 AM 84.84 85.71 0.58%
10t29t2023 5:20 AM 0.00 2.23 3.1|Yo 5:22 AM 84.84 89.58 3.160/o
1013012023 5:20 AM 0.00 6.22 439%5:22 AM 84.U 91.17 4.22%
1013112023 8:'19 AM 0.00 0.00 7.39o/o 8:21 AM 84.84 82.63 1.48%
11t1t2023 5:20 AM 0.00 0.00 0.00%5:22 AM 84.84 87.13 1.53o/o
1',U2t2023 5:20 AM 0.00 1.88 0.00%5:22 AM 84.84 89.68 3.22o/o
111312023 5:20 AM 0.00 0.00 O.57o/o 5:224M 84.84 84.56 -0.19%
11t4t2023 5:20 AM 0.00 0.00 3.47Yo 5:22 AM 84.84 85_13 O.20o/o
111512023 5:20 AM 0.00 1.24 5.87%5:22 AM 84.84 85.89 0.70o/o
111612023 5:20 AM 0.00 0.19 6.88%5:22 AM 84.84 84.59 -0.17%
1'U7t2023 5:20 AM 0.00 0.50 0.00%5:22 AM 84.84 83.47 -0.91%
11t8t2023 5:20 AM 0.00 0.00 0.00%5:22 AM 84.84 83.24 1.07%
11t9t2023 5:20 AM 0.00 0.00 0.007o 5'.22 AM 84.84 84.93 0.06%
11110t2023 5:20 AM 0.00 0.00 0.00%5:22 AM 84.84 83.26 1.O5o/o
't1111t2023 5:20 AM 0.00 0.00 0.00%5:22 AM 84.84 83.51 -0.89%
111',t212023 5:20 AM 0.00 1.72 0.00%5:22 AM 84.84 85.89 0.70o/o
11t1312023 5:20 AM 0.00 1 .13 0.00%5:22 AM 84.84 88.31 2.31o/"
11t14t2023 5:20 AM 0.00 5.42 0.00%5:22 AM 84.U 89.74 3.27o/o
1111512023 5:20 AM 0.00 6.76 0.00%5:22 AM 83.59 91.60 5.34o/o
1111612023 8:17 AM 0.00 0.00 0.00%8:20 AM 83.59 81.23 1 .57o/o
11t',t7t2023 5:'18 AM 0.00 0.00 0.00%5:22 AM 83.59 82.41 -0.79o/o
1111812023 5:'t8 AM 0.00 0.00 0"00%5:23 AM 83.59 79.25 -2.89o/o
1111912023 5:18 AM 0_00 0.00 0.00%5:23 AM 83.59 81.45 1.42o/"
11t20t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 78.41 -3.460h
1112112023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 77.88 -3.80%
1112212023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 77.53 4.O4o/"
11t23t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 85.32 1.15o/o
11t24t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 86.84 2.17Yo
11t25t2023 5:18 AM 0.00 0.46 0.00%5:23 AM 83.59 87.O2 2.29o/o
1112612023 5:18 AM 0.00 0.67 0.00%5:22 AM 83.59 86.53 1.96%
11t27t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 84.37 0.52%
11128t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 85.84 1.50o/r
11t29t2023 5:18 AM 0.00 2.72 0.00%5:224M 83.59 88.35 3.17%
11130t2023 5:18 AM 0.00 3.61 0.00%5:224M 83.59 88.04 2s6%
12t1t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 83.59 83.14 -0.30%
12t2t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 83.59 84.70 o.74%
12t3t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 83.59 84.65 0.71o/o
1214t2023 5:18 AM 0.00 0.00 0.00%5:224M 83.59 85.50 1-27o/o
1215t2023 5:18 AM 0.00 0-00 0.00%5'.22AM 83.59 82.74 -O-57o/"
12t6t2023 5:18 AM 0.00 0.00 0.00%5:22 AM 83.59 83.71 0.08%
12t7t2023 5:18 AM 0.00 0.00 0.007o 5:22 AM 83.59 80.88 1.81%
1218t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 83,59 83.51 -0.06%
12t9t2023 5:18 AM 0.00 0.00 0.00o/o 5:22 AM 83.59 85.59 1.34%
12t1012023 5:'18 AM 0.00 0.00 0.00%5'.22 AM 83.59 85.80 1.48%
1211112023 5:18 AM 0.00 0.46 0.00%5:22 AM 83.59 86.98 2.260/"
Page 3 of 4
\nalvzer: AT-178C
Date SO2 Zero Time
Zero Cylinder
Value
(PPM SOr)
Zero Result
(PPM SO2)
Zero
Difference
l%Errorl
SO, Span Time
Span Cylinder
Value
(PPM SO2)
Span Result
(PPM SO2)
Span
Difference
l%Errorl
121',t212023 5:18 AM 0.00 2.60 0.00%5:224M 83.59 88.07 2.59%
12t13t2023 5:18 AM 0.00 4.93 0.00%5:224M 83.59 88.78 3-4604
12t14t2023 5:18 AM 0.00 0,00 0.00%5:22 AM 83.59 85.09 1.00o/o
121',t512023 5:18 AM 0.00 0.00 0.00%5:22 AM 83.59 86.54 1.970/o
12t16t2023 5:18 AM 0.00 0.00 0.00%5:224M 83.59 87.22 2.42%
12t17t2023 5:18 AM 0.00 0.00 0.00%5:224M 83.59 85.32 1.',150/.
12t18t2023 5:18 AM 0.00 0.00 0.00%5:224M 83.59 85.43 1.23%
12J19t2023 5:18 AM 0.00 0.00 0.00o/o 5:224M 83.59 87.22 2.42o/o
1212012023 5:18 AM 0.00 1.23 0.00%5:23 AM 83.59 89.25 3.78o/.
12t21t2023 5:18 AM 0.00 0.33 0.00%5:23 AM 83.59 87.69 2.730/o
12t22t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 80.00 -2.39o/o
12t23t2023 5:18 AM 0.00 0.00 0.007o 5:23 AM 83.59 80.16 -2.28o/o
12t24t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 79.17 -2.94%
1212512023 5:'18 AM 0.00 0.00 0.00%5:224M 83.59 81.87 1.15v,
1212612023 5:18 AM 0.00 0.00 0.00%5:224M 83.59 82.77 -0.54o/o
12t27t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 85.73 1.43o/o
12128t2023 5:18 AM 0.00 1.34 0.00%5:23 AM 83.59 88.5S 3.33o/o
12t29t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 84.81 0.81o/o
12t30t2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 83.53 -0.04o/o
12t3'.v2023 5:18 AM 0.00 0.00 0.00%5:23 AM 83.59 84.46 0.58%
UTAI'I DtTPARTMt:l'iT OF
ENVIRONt,4ENTAL OUAUry
Page 4 of 4
DIVISION OF AIR Cl.J/rLtT'