HomeMy WebLinkAboutDAQ-2024-0043601
DAQC-1375-23
Site ID 10892 (B5)
MEMORANDUM
TO: CEM FILE – CITY OF ST. GEORGE
THROUGH: Harold Burge, Major Source Compliance Section Manager
FROM: Rob Leishman, Environmental Scientist
DATE: December 29, 2023
SUBJECT: Source: Millcreek Generating Station Turbine #2 (MC-2)
Contact: Melissa Armer (Trinity Consultants, Inc) - 280-870-3215
Brad Burner – 435-627-4884
Location: Millcreek Station, 170 North 3232 East St. George, Washington
County, UT
Test Contractor: TRC Environmental
FRS ID#: UT00000049004900234
Permit/AO#: Title V operating permit 5300011005 dated April 29, 2019
Subject: Review of RA/PST Report dated June 5, 2023
On June 5, 2023, Utah Division of Air Quality (DAQ) received a Relative Accuracy/Performance
Specification Test (RA/PST) report by email for the Millcreek Turbine MC-2. Testing was performed on
April 6, 2023, to determine the relative accuracy of the O2, NOX, and CO monitoring systems. The
DAQ-calculated test results are:
RA/PST EVALUATION:
Millcreek Generating Station - MC-2
NSPS RATA - Test Date - 4/6/2023
Primary
Channel Manufacturer Serial No. Units CEM
Value
RM
Value
Relative
Accuracy Status
NOx Teledyne - M200EM 456 lbs/MMBtu 0.006 0.005 0.0% Passed
O2 Teledyne - M300E 2156 % 15.630 15.550 0.6% Passed
CO Teledyne - M300E 2156 ppm @ 15% O2 2.593 2.509 2.5% Passed
lbs/MMBtu 0.006 0.006 0.0% Passed
lbs/hr 2.048 1.913 4.0% Passed
Stack Test Deviation Report
There were no deviations observed during testing.
Calibration gases were in date and met performance specifications.
1 8 2
2
Millcreek Generating Station - MC-2
Acid Rain Tests - Test Date - 4/6/2023
Primary
Channel Manufacturer Serial No. Units CEM
Value
RM
Value
Relative
Accuracy Status Testing
Frequency
NOx Teledyne - M200EM 456 lbs/MMBtu 0.010 0.005 <0.020 lb/MMBtu Passed
O2 Teledyne - M300E 2156 % 15.637 15.544 0.09% Passed
NOx Relative Accuracy Tests that exceed 7.5% - For units where the average of the monitoring system measurements of
NOx emission rate during the RATA is less than or equal to 0.020 lbs/MMBtu, the mean value of the NOx continuous
emission monitoring system measurements shall not exceed +0.025 lbs/MMBtu of the reference method mean value
wherever the relative accuracy specification of 10.0 percent is not achieved.
Equation - Di (Rmi – CEMi)
Rmi = 0.0051
CEMi = 0.0104
Di = 0.0052 Passed
DEVIATIONS: No deviations were noted in this report.
CONCLUSION: St. George City Power operates the continuous emissions monitor (CEM)
on the Millcreek Turbine MC-2 stack to measure O2, NOx, and CO
emissions. The CEM was audited by the DAQ and found to meet quality
assurance requirements found in 40 CFR Part 60, Appendix B,
Performance Specification 1, and R307-170, Continuous Emission
Monitoring System Program. Quarterly cylinder gas audits and an annual
relative accuracy test audit were conducted in accordance with the
procedures outlined in UAC R307-170.
RECOMMENDATION: The St. George City Power MC-2 CEM system was operating as required
in R307-170 and 40 CFR 60.13 at the time of this evaluation.
HPV: No.
ATTACHMENTS: RATA Review Spreadsheets.
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Reference Methods 2, 3A, 6C, 7E, 10, & 19
Source Information
Company Name St. George City Power
Company Contact:Melissa L. Armer
Contact Phone No.308-853-0883
Stack Designation:Millcreek Generating Station - MC-2
Test & Review Dates
Test Date:4/6/2023
Review Date: 12/28/2023
Observer:Not Observed
Reviewer:Rob Leishman
Emission Limits Emission Rates
SO2 NOX CO SO2 NOX CO
lbs./MMBtu
lbs./hr. 3.6 5.2 1.744 1.907
ppm 2.5 6.00 1.393 2.500
%O2 Correction as a whole #15.00 15.00
Test Information
Stack I.D. inches
As ft^2 Y Dl H @ Cp Pbar Pq (static)
Ps
Stack Pressure
144.00 113.097 0
Contractor Information
Contact:
Contracting Company:
Address:
Phone No.:
Project No.:
8710
Division of Air Quality
Instrumental Reference Methods - Gaseous Measurements
Round
Method 19 - F factors for Coal, Oil, and Gas
Fd Fw Fc
dscf/MMBtu wscf/MMBtu scf/MMBtu Diluent
F factor used
O2
CO2
Anthracite 2
Bituminous 2
Lignite
Natural
Propane
Butane
10100
COAL
OIL
GAS
9780
9860
9190
8710
8710
8710
10540
10640
11950
320
10610
10200
10390
1970
1800
1910
1420
1040
1190
1250
Wet CEM
Correct For O2
CO2 Interference w/CO
Yes
Yes
Yes
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Company St. George City Power
Point Source Millcreek Generating Station - MC-2
Test Date 4/6/23
Start
Time
End
Time Run
NOx
ppm
NOx
lb/MMBtu
CO
ppm@15% O2
CO
lb/MMBtu
CO
lb/hr
O2
%
Headers
Here
Headers
Here
Headers
Here
Headers
Here
Headers
Here
Headers
Here
9:10 9:31 1 1.32 0.0055 2.65 0.0059 2.12 15.66
9:50 10:11 2 1.32 0.0055 2.58 0.0058 2.07 15.65
10:35 10:56 3 1.33 0.0055 2.48 0.0055 1.98 15.65
11:12 11:33 4 1.32 0.0055 2.57 0.0057 2.06 15.64
11:45 12:06 5 1.34 0.0055 2.36 0.0053 1.67 15.65
12:30 12:51 6 1.32 0.0055 2.46 0.0055 1.91 15.66
13:05 13:26 7 1.34 0.0055 2.65 0.0059 2.11 15.62
13:42 14:03 8 1.35 0.0055 2.74 0.0061 2.21 15.61
14:25 14:46 9 1.31 0.054 2.74 0.0062 2.21 15.62
15:05 15:26 10 1.35 0.0055 2.76 0.0062 2.21 15.61
11
12
13
14
15
16
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
NSPS Relative Accuracy Performance Specification Test - CEMS Certification
St. George City Power
Millcreek Generating Station - MC-2
SO2 Analyzer:Serial No.:
CO2 Analyzer:Serial No.:
Acquisition System:Serial No.:
Acquisition System: Serial No.:
Equivalent Emission Limit:
Test Date SO2 Dry SO2 Dry SO2 Test Date % CO2 Dry
4/6/2023 RM CEMS Diff RM CEMS Diff RM CEMS Diff 4/6/2023 RM CEMS Diff
Run#Start
Time
End
Time ppm @ % O2 lbs./MMBtu lbs./hr. Run#
Start
Time End Time %c %c
1 9:10 9:31 1 9:10 9:31 3.1
2 9:50 10:11 2 9:50 10:11 3.0
3 10:35 10:56 3 10:35 10:56 3.0
4 11:12 11:33 4 11:12 11:33 3.0
5 11:45 12:06 5 11:45 12:06 3.0
6 12:30 12:51 6 12:30 12:51 3.0
7 13:05 13:26 7 13:05 13:26 3.0
8 13:42 14:03 8 13:42 14:03 3.1
9 14:25 14:46 9 14:25 14:46 3.0
10 15:05 15:26 10 15:05 15:26 3.0
11 11
12 12
13 13
14 14
15 15
16 16
Average = Average =
Sd Standard Deviation = Sd Standard Deviation = Sd Standard Deviation = Sd Standard Deviation =
Confidence Coefficient = Confidence Coefficient = Confidence Coefficient = Confidence Coefficient =
RA - Relative Accuracy = RA RA RA - Relative Accuracy =
n = 0 0 0 n = 0 or RA of 1%
t0.975 = t0.975 =
E.L. Relative Accuracy =
a For steam generators;b Average of three samples;0
c Make sure that RM and M data are on a consistent basis either wet or dry.
40 CFR 60 Performance Specification 2 For SO2 and NOx Continuous Emission Monitoring Systems
13.2 Relative accuracy Performance Specification. The RA of the CEMSS must be not greater than 20 percent when RM is used in the denominator of Eq. 2-6
(average emissions during test are greater than 50 percent of the emission standard)or 10 percent when the applicable emission standard is used in the
denominator of Eq. 2-6 (average emissions during test are less than 50 percent of the emission standard).
Up dated January 17, 2006
40 CFR 60 Performance Specification 3 For O2 and CO2 Continuous Emission Monitoring Systems
13.2 CEMS Relative Accuracy Perfromance Specification.
The RA of the CEMS must be no grater than 20 percent of the mean value of the reference method (RM) data. 1 percent O2 or CO2.
The results are also acceptable if the absolute value of the difference between the mean RM value and the mean CEMS value is less than or equal to 1.0 percent O2 (or CO2).
Up dated September 14, 2016
40 CFR 60 Performance Specification 6 For Continuous Emission Rate Monitoring Systems (CERMS)
13.2 CERMS Relative Accuracy. The RA of the CERMS shall be no greater than 20 percent of the mean value of the RM's test data in terms of the nits of the emission
standard, or 10 percent of the applicable standard, which err is greater.
Up dated January 17, 2006
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St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
Relative Accuracy Test Audit of
St. George City Power
Millcreek Generating Station - MC-2
NOX Analyzer:Serial No.:
O2 Analyzer:Serial No.:
Acquisition System:Serial No.:
Acquisition System: Serial No.:
Equivalent Emission Limit:2.50 3.60
Date NOx Dry NOx Dry NOx Test Date % O2 Dry
4/6/2023 RM CEMS Diff RM CEMS Diff RM CEMS Diff 9/30/2014 RM CEMS Diff
Run#Start
Time
End
Time ppm @ 15% O2 lbs./MMBtu lbs./hr. Run#
Start
Time End Time %c %c
1 9:10 9:31 1.4 1.32 Y 0.005 0.0055 0.000 1.77 1 9:10 9:31 15.5 15.66
2 9:50 10:11 1.4 1.32 Y 0.005 0.0055 0.000 1.79 2 9:50 10:11 Y 15.6 15.65 -0.091
3 10:35 10:56 1.4 1.33 Y 0.005 0.0055 0.000 1.82 3 10:35 10:56 Y 15.6 15.65 -0.096
4 11:12 11:33 1.4 1.32 Y 0.005 0.0055 0.000 1.78 4 11:12 11:33 Y 15.6 15.64 -0.083
5 11:45 12:06 1.4 1.34 Y 0.005 0.0055 0.000 1.79 5 11:45 12:06 Y 15.6 15.65 -0.068
6 12:30 12:51 1.4 1.32 Y 0.005 0.0055 0.000 1.69 6 12:30 12:51 Y 15.6 15.66 -0.075
7 13:05 13:26 1.4 1.34 Y 0.005 0.0055 0.000 1.74 7 13:05 13:26 Y 15.5 15.62 -0.076
8 13:42 14:03 1.4 1.35 Y 0.005 0.0055 0.000 1.73 8 13:42 14:03 Y 15.5 15.61 -0.101
9 14:25 14:46 1.3 1.31 0.005 0.054 1.66 9 14:25 14:46 Y 15.5 15.62 -0.096
10 15:05 15:26 1.4 1.35 Y 0.005 0.0055 -0.001 1.69 10 15:05 15:26 Y 15.5 15.61 -0.072
11 11
12 12
13 13
14 14
15 15
16 16
Average = 0.01 0.006 0.000 Average = 15.550 15.630 0.084
Sd Standard Deviation = Sd Standard Deviation = 0.000 Sd Standard Deviation = Sd Standard Deviation = 0.01
Confidence Coefficient = Confidence Coefficient = 0.000 Confidence Coefficient = Confidence Coefficient = 0.009
RA - Relative Accuracy = Relative Accuracy =0.00%Relative Accuracy = RA - Relative Accuracy =0.59%
n = 0 9 0 n = 9 or RA of 1%0.08%
t0.975 = t0.975 = 2.306 t0.975 = t0.975 = 2.306
E.L. Relative Accuracy = EMRA EMRA
a For steam generators;b Average of three samples;
c Make sure that RM and M data are on a consistent basis either wet or dry.
40 CFR 60 Performance Specification 2 For SO2 and NOx Continuous Emission Monitoring Systems
4. Performance and Equipment Specifications
4.3 Relative accuracy. The RA of the CEMSS shall be no grater than 20 percent of the mean value of the RM test data in terms of the
units of the emission standard or 10 percent of the applicable standard, whichever is greater
For SO2 emission standards between 0.30 and 0.20 lbs./MMBtu use 15 Percent of the applicable standard;
For SO2 emission standards below 0.20 lbs./MMBtu use 20 Percent of the emission standard;
40 CFR 60 Performance Specification 3 For O2 and CO2 Continuous Emission Monitoring Systems
12. Calculate the arithmetic difference between the RM and the CEMSS output for each run. The average of the nine (of more) data sets constitute the RA.
13.2 Relative accuracy. The RA of the CEMSS must be no grater than 1 percent O2 or CO2.
40 CFR 60 Performance Specification 6 For Continuous Emission Rate Monitoring Systems (CERMS)
13.2 CERMS Relative Accuracy. The RA of the CERMS shall be no greater than 20 percent of the mean value of the RM's test data in terms of the nits of the emission
standard, or 10 percent of the applicable standard, which err is greater.
Up dated January 17, 2006
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PassedPassed
456Teledyne - M200EM
Teledyne - M300E 2156
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
Relative Accuracy Test Audit of
St. George City Power
Millcreek Generating Station - MC-2
CO Analyzer:Serial No.:
Acquisition System:
Acquisition System: Serial No.:
Equivalent Emission Limit:6.00 5.21
Date CO Dry CO Dry CO
4/6/2023 RM CEMS Diff RM CEMS Diff RM CEMS Diff
Run#Start
Time
End
Time ppm @ 15% O2 lbs./MMBtu lbs./hr.
1 9:10 9:31 2.42 2.65 0.005 0.0059 1.86 2.12
2 9:50 10:11 Y 2.49 2.58 0.09 Y 0.006 0.0058 0.000 Y 1.91 2.07 0.16
3 10:35 10:56 Y 2.48 2.48 0.00 Y 0.006 0.0055 0.000 Y 1.90 1.98 0.08
4 11:12 11:33 Y 2.42 2.57 0.15 Y 0.005 0.0057 0.000 Y 1.86 2.06 0.20
5 11:45 12:06 Y 2.27 2.36 0.09 Y 0.005 0.0053 0.000 Y 1.72 1.67 -0.05
6 12:30 12:51 Y 2.54 2.46 -0.08 Y 0.006 0.0055 0.000 Y 1.89 1.91 0.02
7 13:05 13:26 Y 2.54 2.65 0.11 Y 0.006 0.0059 0.000 Y 1.94 2.11 0.17
8 13:42 14:03 Y 2.57 2.74 0.17 Y 0.006 0.0061 0.000 Y 1.98 2.21 0.23
9 14:25 14:46 Y 2.68 2.74 0.06 Y 0.006 0.0062 0.000 Y 2.06 2.21 0.16
10 15:05 15:26 Y 2.59 2.76 0.17 Y 0.006 0.0062 0.000 Y 1.97 2.21 0.24
11
12
13
14
15
16
Average = 2.51 2.59 0.08 0.006 0.006 0.000 1.91 2.05 0.14
Sd Standard Deviation = 0.08 0.000 0.099
Confidence Coefficient = 0.063 0.000 0.08
RA - Relative Accuracy =0.00%
n = 9 9 9
t0.975 = 2.306 2.306 2.306
E.L. Relative Accuracy = 42%2.45%37% 4.05%
a For steam generators;b Average of three samples;
c Make sure that RM and M data are on a consistent basis either wet or dry.
40 CFR 60 Performance Specification 4 For Carbon Monoxide (CO) Continuous Emission Monitoring Systems
applicable emission standard is used to calculate RA.
40 CFR 60 Performance Specification 4A For Carbon Monoxide (CO) Continuous Emission Monitoring Systems
13.2 Relative accuracy. The RA of the CEMSS must be no greater than 10 percent when the average RM value is used to calculate RA, 5 percent when the applicable
emission standard is used to calculate RA, or within 5 ppmv when the RA is calculated as the absolute average difference between the RM and CEMSS plus the 2.5
percent confidence coefficient.
40 CFR 60 Performance Specification 6 For Continuous Emission Rate Monitoring Systems (CERMS)
13.2 CERMS Relative Accuracy. The RA of the CERMS shall be no greater than 20 percent of the mean value of the RM's test data in terms of the nits of the emission
standard, or 10 percent of the applicable standard, which err is greater.
Up dated January 17, 2006
13.2 Relative accuracy. The RA of the CEMSS must be no grater than 10 percent when the average of the RM value is used to calculate RA or 5 percent when the
Passed Passed Passed
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Teledyne - M300E 2156
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
NSPS Relative Accuracy Performance Specification Test - CEMS Certification
St. George City Power
Millcreek Generating Station - MC-2
SO2 Analyzer:Serial No.:
CO2 Analyzer:Serial No.:
Acquisition System:Serial No.:
Acquisition System:Serial No.:
Equivalent Emission Limit:
Test Date SO2 Dry SO2 Dry SO2 Test Date % CO2 Dry
4/6/2023 RM CEMS Diff RM CEMS Diff RM CEMS Diff 4/6/2023 RM CEMS Diff
Run#Start
Time
End
Time ppm @ % O2 lbs./MMBtu lbs./hr. Run#
Start
Time
End
Time %c %c
1 9:10 9:31 1 9:10 9:31 3.1
2 9:50 10:11 2 9:50 10:11 3.0
3 10:35 10:56 3 10:35 10:56 3.0
4 11:12 11:33 4 11:12 11:33 3.0
5 11:45 12:06 5 11:45 12:06 3.0
6 12:30 12:51 6 12:30 12:51 3.0
7 13:05 13:26 7 13:05 13:26 3.0
8 13:42 14:03 8 13:42 14:03 3.1
9 14:25 14:46 9 14:25 14:46 3.0
10 15:05 15:26 10 15:05 15:26 3.0
11 11
12 12
13 13
14 14
15 15
16 16
Average = Average =
Sd Standard Deviation =Sd Standard Deviation =
Confidence Coefficient =Confidence Coefficient =
RA - Relative Accuracy =RA - Relative Accuracy =
n =0 n =0 n =0 n =0 or RA of 1%
t0.975 =t0.975 =t0.975 =t0.975 =
BAF =No Bias
a For steam generators;b Average of three samples;Alterative RA
c Make sure that RM and M data are on a consistent basis either wet or dry.
RATA Semiannual Test Annual
SO2 RA < 10% RA < 7.5% OR < 12ppm
ppm
CO2 - The relative accuracy for CO2 monitors shall not exceed 10 percent. See Alternative Below
Pt. 75, App. A 3.3.3 The relative accuracy for CO2 monitors shall not exceed 10 percent. Alternative - If the mean difference of the CO2
monitor measurements and the corresponding reference method measurement, calculated using Equation A7
Up dated September 25, 2017
40 CFR 60 Performance Specification 6 For Continuous Emission Rate Monitoring Systems (CERMS)
13.2 CERMS Relative Accuracy. The RA of the CERMS shall be no greater than 20 percent of the mean value of the RM's test data in terms of the nits of the emission
standard, or 10 percent of the applicable standard, which ever is greater.
Up dated January 17, 2006
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St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
Relative Accuracy Test Audit of
St. George City Power
Millcreek Generating Station - MC-2
NOX Analyzer:Serial No.:
O2 Analyzer:Serial No.:
Acquisition System:Serial No.:
Acquisition System:Serial No.:
Equivalent Emission Limit:2.50 3.60
Date NOx Dry NOx Dry NOx Test Date % O2 Dry
4/6/2023 RM CEMS Diff RM CEMS Diff RM CEMS Diff 4/6/2023 RM CEMS Diff
Run#Start
Time
End
Time ppm @ 15% O2 lbs./MMBtu lbs./hr. Run#
Start
Time
End
Time %c %c
1 9:10 9:31 1.4 Y 0.005 0.0055 -0.00032 1.77 1 9:10 9:31 Y 15.5 15.66 -0.174
2 9:50 10:11 1.4 Y 0.005 0.0055 -0.00027 1.79 2 9:50 10:11 Y 15.6 15.65 -0.091
3 10:35 10:56 1.4 Y 0.005 0.0055 -0.00019 1.82 3 10:35 10:56 Y 15.6 15.65 -0.096
4 11:12 11:33 1.4 Y 0.005 0.0055 -0.00030 1.78 4 11:12 11:33 Y 15.6 15.64 -0.083
5 11:45 12:06 1.4 Y 0.005 0.0055 -0.00021 1.79 5 11:45 12:06 Y 15.6 15.65 -0.068
6 12:30 12:51 1.4 Y 0.005 0.0055 -0.00039 1.69 6 12:30 12:51 Y 15.6 15.66 -0.075
7 13:05 13:26 1.4 Y 0.005 0.0055 -0.00040 1.74 7 13:05 13:26 Y 15.5 15.62 -0.076
8 13:42 14:03 1.4 Y 0.005 0.0055 -0.00047 1.73 8 13:42 14:03 Y 15.5 15.61 -0.101
9 14:25 14:46 1.3 Y 0.005 0.054 -0.04916 1.66 9 14:25 14:46 Y 15.5 15.62 -0.096
10 15:05 15:26 1.4 Y 0.005 0.0055 -0.00054 1.69 10 15:05 15:26 Y 15.5 15.61 -0.072
11 11
12 12
13 13
14 14
15 15
16 16
Average = 0.005 0.010 0.00522 Average = 15.5 15.637 0.093
Sd Standard Deviation =Sd Standard Deviation =0.015 Sd Standard Deviation =Sd Standard Deviation =0.03
Confidence Coefficient =Confidence Coefficient =0.011 Confidence Coefficient =Confidence Coefficient =0.022
RA - Relative Accuracy =RA =316.50%RA =RA - Relative Accuracy =0.74%
n =0 n =10 n =0 n =10 or RA of 1%0.09%
t0.975 =t0.975 =2.262 t0.975 =t0.975 =2.262
No Bias
a For steam generators;b Average of three samples;
c Make sure that RM and M data are on a consistent basis either wet or dry.
RATA Semiannually Annual NOx Multipliers
NOX RA < 10% RA < 7.5% Old Multiplier New Multiplier
Alternative RA
For units where the average of the monitoring system measurements of NOX emission rate during the RATA
is less than or equal to 0.20 lb./MMBtu, the mean value of the NOX continuous emission monitoring system
For SO2 emission standards between 0.30 and 0.20 lbs./MMBtu use 15 Percent of the applicable standard;
specification of 10.0 percent is not achieved.
di (Rmi - CEMSi)-0.005
Alterative RA Passed
Passed
Teledyne - M200EM 456
Teledyne - M300E 2156
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St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Test Overview
NSPS Relative Accuracy
Performance Specification Test -
CEMS Certification St. George City Power
Point Source Millcreek Generating Station - MC-2
Contact Phone No.Melissa L. Armer
Stack Designation:Millcreek Generating Station - MC-2
Project No.:0
Run Run # 1 Run # 2 Run # 3 Run # 4 Run # 5 Run # 6 Run # 7 Run # 8 Run # 9 Run # 10 Run # 11 Run # 12
Test Date 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023
Start Time 9:10 9:50 10:35 11:12 11:45 12:30 13:05 13:42 14:25 15:05
Stop Time 9:31 10:11 10:56 11:33 12:06 12:51 13:26 14:03 14:46 15:26
Run Time 0:21 0:21 0:21 0:21 0:21 0:21 0:21 0:21 0:21 0:21
Stack I.D. (inches)144.00 144.00 144.00 144.00 144.00 144.00 144.00 144.00 144.00 144.00 144.00 144.00
As ft^2 113.10 113.10 113.10 113.10 113.10 113.10 113.10 113.10 113.10 113.10 113.10 113.10
Cp (Pitot Tube Coefficient)0.00 #DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!#DIV/0!
Yd Meter Y Factor (unit less)0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
Pbar Barometric Pressure ("Hg)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Pq (Static Pressure)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Ps (Pressure of the Stack)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Ts Stack Temp Avg. oF
Tm Meter Temperature oF
CO2 (carbon dioxide)3.09 3.03 3.03 3.04 3.04 3.03 3.05 3.06 3.04 3.04
O2 (oxygen)15.49 15.56 15.55 15.56 15.58 15.58 15.54 15.51 15.52 15.54
Md Molecular Weight Dry 29.11 29.11 29.11 29.11 29.11 29.11 29.11 29.11 29.11 29.11 #VALUE!#VALUE!
Ms Molecular Weight Wet 29.11 29.11 29.11 29.11 29.11 29.11 29.11 29.11 29.11 29.11 #VALUE!#VALUE!
N2 (nitrogen)81.43 81.41 81.42 81.41 81.38 81.38 81.41 81.43 81.44 81.42 #VALUE!#VALUE!
Vm Sample Volume (cf)0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Vm std Standard Volume (dscf)
Vlc Moisture (g)
Vwstd Moisture Volume (scf)
Bws Moisture Content (%100)
S Bws (saturation moisture)
AvgSqrtDlp √∆P
Vs. Gas Velocity (ft./sec)
Qa (stack actual flow rate) acfm
Qs (stack std. flow rate) dscfm #VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!#VALUE!
Qsd (stack std. flow rate) dscfh
Qw (stack flow rate) wscfm
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Test Overview
NSPS Relative Accuracy
Performance Specification Test -
CEMS Certification St. George City Power
Point Source Millcreek Generating Station - MC-2
Contact Phone No.Melissa L. Armer
Stack Designation:Millcreek Generating Station - MC-2
Project No.:0
Run Run # 1 Run # 2 Run # 3 Run # 4 Run # 5 Run # 6 Run # 7 Run # 8 Run # 9 Run # 10 Run # 11 Run # 12
Test Date 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023 4/6/2023
Heat Input - BTU/hr.
F factor - scf/MMBtu 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0 8710.0
Fuel Analysis - ft3/min 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0 1050.0
Fuel Flow - ft3/min 5420.0 5420.0 5430.0 5430.0 5370.0 5260.0 5400.0 5450.0 5430.0 5400.0 0.0 0.0
Heat Input - BTU/hr.341.5 341.5 342.1 342.1 338.3 331.4 340.2 343.4 342.1 340.2 0.0 0.0
SO2 Concentrations
Uncorrected
Dry Corrected
Wet Corrected
NOx Concentrations
Uncorrected 1.24 1.23 1.25 1.23 1.25 1.21 1.23 1.22 1.16 1.18
Dry Corrected 1.29 1.28 1.31 1.28 1.29 1.25 1.26 1.25 1.20 1.22
Wet Corrected
CO Concentrations
Uncorrected 2.27 2.27 2.24 2.16 2.00 2.26 2.26 2.29 2.39 2.31
Dry Corrected 2.22 2.25 2.24 2.19 2.05 2.29 2.30 2.35 2.44 2.35
Wet Corrected
CO2 Concentrations
Uncorrected 3.19 3.18 3.17 3.17 3.17 3.15 3.15 3.15 3.13 3.13
Dry Corrected 3.09 3.03 3.03 3.04 3.04 3.03 3.05 3.06 3.04 3.04
Wet Corrected
O2 Concentrations
Uncorrected 15.43 15.42 15.43 15.41 15.42 15.43 15.39 15.37 15.40 15.40
Dry Corrected 15.49 15.56 15.55 15.56 15.58 15.58 15.54 15.51 15.52 15.54
Wet Corrected
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
NSPS Relative Accuracy Performance Specification Test - CEMS Certification
St. George City Power
Millcreek Generating Station - MC-2
Average Emission
Dry SO2 NOX CO
lbs./MMBtu 0.005 0.006 Average % concentration
lbs./hr.1.74 1.91 CO2 O2
ppm corrected for %O2 1.39 2.50 3.04 15.54
Run 1 Enter O2 or CO2
Dry SO2 NOX CO CO2 O2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.18E-03 5.43E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.541E-07 1.616E-07
lbs./hr.1.77 1.86 3.09 15.49
ppm corrected for %O2 1.41 2.42 3.19 15.43
Run 2
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.23E-03 5.58E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.534E-07 1.637E-07
lbs./hr.1.79 1.91 3.03 15.56
ppm corrected for %O2 1.42 2.49 3.19 15.42 Raw Value
Run 3
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.31E-03 5.55E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.559E-07 1.631E-07
lbs./hr.1.82 1.90 3.03 15.55
ppm corrected for %O2 1.44 2.48 3.17 15.43 Raw Value
Run 4
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.20E-03 5.43E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.527E-07 1.593E-07
lbs./hr.1.78 1.86 3.04 15.56
ppm corrected for %O2 1.41 2.42 3.17 15.41 Raw Value
Run 5
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.29E-03 5.09E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.546E-07 1.487E-07
lbs./hr.1.7901 1.72 3.04 15.58
ppm corrected for %O2 1.44 2.27 3.17 15.42 Raw Value
Corrected For Cal. Drift
Raw Value
Corrected For Cal. Drift
Corrected For Cal. Drift
Corrected For Cal. Drift
Corrected For Cal. Drift
O2
CO2
Clear
lbs./MMBTU
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Division of Air Quality
NSPS Relative Accuracy Performance Specification Test - CEMS Certification
St. George City Power
Millcreek Generating Station - MC-2
O2
CO2
Clear
lbs./MMBTU
Run 6
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.11E-03 5.70E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.492E-07 1.664E-07
lbs./hr.1.6932 1.89 3.03 15.58
ppm corrected for %O2 1.39 2.54 3.15 15.43 Raw Value
Run 7
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.10E-03 5.69E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.501E-07 1.674E-07
lbs./hr.1.74 1.94 3.05 15.54
ppm corrected for %O2 1.39 2.54 3.15 15.39 Raw Value
Run 8
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)5.03E-03 5.76E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.491E-07 1.707E-07
lbs./hr.1.73 1.98 3.06 15.51
ppm corrected for %O2 1.37 2.57 3.15 15.37 Raw Value
Run 9
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)4.84E-03 6.01E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.430E-07 1.774E-07
lbs./hr.1.66 2.06 3.04 15.52
ppm corrected for %O2 1.31 2.68 3.13 15.40 Raw Value
Run 10
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)4.96E-03 5.80E-03 E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft 1.461E-07 1.709E-07
lbs./hr.1.69 1.97 3.04 15.54
ppm corrected for %O2 1.35 2.59 3.13 15.40 Raw Value
Run 11
Dry SO2 NOX CO CO2 O2
Atomic Weight 64 46 28
lbs./MMBtu (O2)E=Cd x Fd x (20.9/(20.9-%O2d))
lbs./MMBtu (CO2)E=Cd x Fc x (100 / % CO2d)
lbs./cu.ft
lbs./hr.
ppm corrected for %O2 Raw Value
Corrected For Cal. Drift
Corrected For Cal. Drift
Corrected For Cal. Drift
Corrected For Cal. Drift
Corrected For Cal. Drift
Corrected For Cal. Drift
St George MC-2 RATA RM 7E, 10, & 19 (tested 4-6-2023)
Calibration Error Test
Test Date April 6, 2023 O2
CS - Cal. Span 22.53
Units %
Cylinder No. Expiration
Date Cal. Gas CV- Certified
Concentration
CDir or CS -
Measured
Concentration
Difference
ACE Eq. 7E-1
Analyzer Cal.
Error
Status
Low-level 0.00 0.03 0.03 0.13% Passed Cal.
Mid-level 11.27 11.35 0.08 0.36% Passed Cal.
High-level 22.53 22.55 0.02 0.09% Passed Cal.
% of Span Sec. 8.2.1 Cal Gas Verification
0 to 20% of CS - Cal. Span Low-Level 0.00%
40 to 60% of Cal. Span Mid-level 50.02%
100% of Cal. Span High-level 100.00%
Test Date April 6, 2023 CO2
CS - Cal. Span 9.18
Units %
Cylinder
No.
Expiration
Date Cal. Gas CV- Certified
Concentration
CDir or CS -
Measured
Concentration
Difference
ACE Eq. 7E-1
Analyzer Cal.
Error
Status
Low-level 0.00 0.03 0.03 0.327% Passed Cal.
Mid-level 4.59 4.65 0.06 0.653% Passed Cal.
High-level 9.18 9.18 0.00 0.033% Passed Cal.
% of Span Sec. 8.2.1 Cal Gas Verification
0 to 20% of Cal. Span Low-Level 0.00%
40 to 60% of Cal. Span Mid-level 49.98%
100% of Cal. Span High-level 100.00%
Test Date SO2
CS - Cal. Span
Units ppm
Cylinder
No.
Expiration
Date Cal. Gas CV- Certified
Concentration
CDir or CS -
Measured
Concentration
Difference
ACE Eq. 7E-1
Analyzer Cal.
Error
Status
Low-level
Mid-level
High-level
% of Span Sec. 8.2.1 Cal Gas Verification
0 to 20% of Cal. Span Low-Level
40 to 60% of Cal. Span Mid-level
100% of Cal. Span High-level
Test Date April 6, 2023 NOx
CS - Cal. Span 4.00
Units ppm
Cylinder
No.
Expiration
Date Cal. Gas CV- Certified
Concentration
CDir or CS -
Measured
Concentration
Difference
ACE Eq. 7E-1
Analyzer Cal.
Error
Status
Low-level 0.00 -0.01 0.01 0.250% Passed Cal.
Mid-level 2.00 2.03 0.03 0.750% Passed Cal.
High-level 4.00 4.00 0.00 0.000% Passed Cal.
% of Span Sec. 8.2.1 Cal Gas Verification
0 to 20% of Cal. Span Low-Level 0.00%
40 to 60% of Cal. Span Mid-level 50.00%
100% of Cal. Span High-level 100.00%
Test Date April 6, 2023 CO
5.21 CS - Cal. Span 4.02
6 Units ppm
Cylinder
No.
Expiration
Date Cal. Gas CV- Certified
Concentration
CDir or CS -
Measured
Concentration
Difference
ACE Eq. 7E-1
Analyzer Cal.
Error
Status
Low-level 0.00 -0.01 0.01 0.249% Passed Cal.
Mid-level 2.01 2.03 0.02 0.498% Passed Cal.
High-level 4.02 4.02 0.00 0.000% Passed Cal.
% of Span Sec. 8.2.1 Cal Gas Verification
0 to 20% of Cal. Span Low-Level 0.00%
40 to 60% of Cal. Span Mid-level 50.00%
100% of Cal. Span High-level 100.00%