DAQ-2025-000142

1

DAQC-016-25
Site ID 12596 (B4)

MEMORANDUM

TO: STACK TEST FILE – KERN RIVER GAS TRANSMISSION COMPANY – Salt
Lake Compressor Station – Salt Lake County

THROUGH: Rik Ombach, Minor Source Oil and Gas Section Manager

FROM: Kyle Greenberg, Environmental Scientist

DATE: January 7, 2025

SUBJECT: Sources: Salt Lake Compressor Station – Turbine: Unit 2
Contact: Denise Kohtala: 801-937-6347
Location: Salt Lake County, Utah
Test Contractor: Alliance Technical Group
Permit/AO#: DAQE-AN0125960016-23, dated October 6, 2023
Action Code: TR
Subject: Review of stack test report dated September 4, 2024

On September 4, 2024, Utah Division of Air Quality (DAQ) received a test report for the above listed
unit. Testing was performed on July 10, 2024, to demonstrate compliance with the emission limits found
in Condition II.B.2 of DAQE-AN0125960016-23 and 40 CFR Part 60 Subpart GG. The calculated test
results are:

Source Test Date Unit
Load
Test
Methods
Pollutants Tester
Results
DAQ
Results
Limits
Turbine:
Unit 2
July 10,
2024 High
7E NOx 1.69 lb/hr

4.90
ppmvd
@15% 02
1.890 lb/hr

4.890
ppmvd
@15% 02
6.45 lb/hr

15 ppmvd
@15% 02
10 CO 0.0042
lb/hr

0.020
ppmvd
@15% 02
0.005 lb/hr

0.020
ppmvd
@15% 02
6.54 lb/hr

25 ppmvd
@15% 02
25A VOC 0.025 lb/hr

0.075
ppmvd
@15% 02
0.031 lb/hr

0.084
ppmvd
@15% 02
0.75 lb/hr

25 ppmvd
@15% 02
2

High-Mid
7E NOx 1.24 lb/hr

4.09
ppmvd
@15% 02
1.544 lb/hr

4.100
ppmvd
@15% 02
6.45 lb/hr

15 ppmvd
@15% 02
10 CO 0.085 lb/hr

0.46
ppmvd
@15% 02
0.107 lb/hr

0.460
ppmvd
@15% 02
6.54 lb/hr

25 ppmvd
@15% 02
25A VOC 0.018 lb/hr

0.061
ppmvd
@15% 02
0.025 lb/hr

0.069
ppmvd
@15% 02
0.75 lb/hr

25 ppmvd
@15% 02
Low-Mid
7E NOx 1.16 lb/hr

4.19
ppmvd
@15% 02
1.538 lb/hr

4.193
ppmvd
@15% 02
6.45 lb/hr

15 ppmvd
@15% 02
10 CO 0.13 lb/hr

0.78
ppmvd
@15% 02
0.175 lb/hr

0.787
ppmvd
@15% 02
6.54 lb/hr

25 ppmvd
@15% 02
25A VOC 0.040 lb/hr

0.15
ppmvd
@15% 02
0.052 lb/hr

0.149
ppmvd
@15% 02
0.75 lb/hr

25 ppmvd
@15% 02
Low
7E NOx 1.00 lb/hr

3.97
ppmvd
@15% 02
1.436 lb/hr

3.954
ppmvd
@15% 02
6.45 lb/hr

15 ppmvd
@15% 02
10 CO 0.14 lb/hr

0.90
ppmvd
@15% 02
0.199 lb/hr

0.897
ppmvd
@15% 02
6.54 lb/hr

25 ppmvd
@15% 02
3

25A VOC 0.0052
lb/hr

0.022
ppmvd
@15% 02
0.009 lb/hr

0.027
ppmvd
@15% 02
0.75 lb/hr

25 ppmvd
@15% 02

DEVIATIONS: None.

CONCLUSION: The stack test report appears to be acceptable.

RECOMMENDATION: The emissions from Turbine Unit 2 should be considered to have been in
compliance with the emission limits of the AO and 40 CFR Part 60
Subpart GG, during the time of testing.

ATTACHMENTS: DAQ stack test review excel spreadsheets, Kern River Gas Transmission
Company stack test report.
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah
Turbine Unit 2
Test Date 7/10/2024
Run #1 2 3 Average
Start Time 11:00 11:35 12:07
Stop Time 11:20 11:55 12:27
Sample Duration (minutes)20 20 20
BHP Engine Load - Actual (NGP)103.5 103.5 103.5 104
DS Stack Diameter (inches)101.55 101.55 101.55 101.55
√∆PAVG Average (Delta P)½ (" H2O)½0.6070 0.6070 0.6070 0.6070
CP Pitot Tube Constant (unitless)0.840 0.840 0.840 0.840
TS Stack Temperature (°F)884.70 884.70 884.70 884.70
Pbar Barometric Pressure (mbar)866.9 866.9 872.7 869
Pbar Barometric Pressure (" Hg)25.60 25.60 25.77 25.66
Ps Stack Pressure ('' H2O)0.01 0.01 0.01 0.01
Yd Meter Y Factor (unitless)0.9800 0.9800 0.9800 0.9800
Tm Meter Temperature (°F)82.0 82.0 82.0 82.0
Vm Sample Volume (ft3)26.964 26.964 26.964 26.964
∆H Orifice Pressure Delta H (" H2O)1.000 1.000 1.000 1.000
Vlc Moisture (g)31.70 31.70 31.70 31.70
DB (°F)Dry Bulb Temperature (°F)91 92 95 93
DB (°C)Dry Bulb Temperature (°C)33 33 35 34
PF (" H2O)Inlet Pressure Drop (''H2O)2.7 2.7 2.7 3
RH (%)Relative Humidity (%)12.0 12.0 12.0 12
Fd Fd value (dscf/MMBtu)8605 8605 8605 8605
O2%vd O2 (%vd)15.8 16.0 15.7 15.8
CO2%vd CO2 (%vd)2.8 2.7 2.7 2.7
N2%vd N2 (%vd)81.4 81.3 81.6 81.4
dry NOX (ppmvd)4.2 4.2 4.2 4.2
dry CO (ppmvd)0.0 0.1 0.0 0.0
wet VOC (ppmvw as C3H8)0.1 0.1 0.0 0.1
Run #1 2 3 Average
scfh Fuel Consumption (scfh) 91900 91800 90900 91533
Btu/scf Heat Value (Btu/scf)1032.9 1032.9 1032.9 1032.9
MMBtu/hr Fuel Use (MMBtu/hr)94.9 94.8 93.9 94.5
Run #1 2 3 Average
Vmstd Sample Volume (dscf)22.080 22.080 22.226 22.129
Vwstd Moisture Volume (scf)1.49 1.49 1.49 1.49
Bws Measured Moisture Content (%/100)0.063 0.063 0.063 0.063
Bws Saturated Moisture Content (%/100)597.602 597.602 593.660 596.288
Bws Actual Moisture Content (%/100)0.063 0.063 0.063 0.063
MD Molecular Weight Dry (lb/lb-mole)29.07 29.08 29.06 29.07
MA Molecular Weight Wet (lb/lb-mole)28.37 28.37 28.37 28.37
Fo Fo (unitless)1.836 1.795 1.904 1.845
wet O2 (%vw)14.8 15.0 14.7 14.8
wet CO2 (%vw)2.6 2.6 2.6 2.6
wet NOX (ppmvw)3.900 3.925 3.941 3.922
15 NOX (ppmvd @ 15% O2)4.861 5.044 4.776 4.894 15.0
15, ISO NOx (ppmvd @ 15% O2, ISO)4.633 4.807 4.533 4.658
lb/hr NOX (lb/hr)1.877 1.890 1.904 1.890 6.45
Fd NOX (lb/MMBtu)0.018 0.018 0.017 0.018
lb/hr - M19 NOX (lb/hr)1.679 1.741 1.632 1.684 6.45
wet CO (ppmvw)0.000 0.047 0.000 0.016
15 CO (ppmvd @ 15% O2)0.000 0.060 0.000 0.020 25.0
lb/hr CO (lb/hr)0.000 0.014 0.000 0.005 6.54
Fd CO (lb/MMBtu)0.000 0.000 0.000 0.000
lb/hr - M19 CO (lb/hr)0.000 0.013 0.000 0.004 6.54
dry VOC (ppmvd as C3H8)0.085 0.085 0.043 0.071
15 VOC (ppmvd as C3H8 @ 15% O2)0.100 0.103 0.048 0.084 25.0
lb/hr VOC (lb/hr as C3H8)0.037 0.037 0.019 0.031 0.75
Fd VOC (lb/MMBtu as C3H8)0.000 0.000 0.000 0.000
lb/hr - M19 VOC (lb/hr as C3H8)0.033 0.034 0.016 0.028 0.75
mm Hg of H2O 4.460 4.601 5.049 4.703
Ambient H2O (%/100)0.007 0.007 0.008 0.007
g H2O / g Dry Air 0.004 0.004 0.005 0.005
Field Reference Method Data
Reference Method Calculations
Fuel Use Data and Calculations
High Load
Permit Limits
Page 1 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 11:00
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 11:20
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.1 0.0 0.0
10.1 10.0 10.0 10.1 10.1
0.0 0.0 0.0 0.0 0.0
10.0 10.0 10.0 10.0 10.1
0.0%0.0%0.0%0.8%0.2%
0.1%0.2%0.4%0.1%0.1%
0.0%0.0%0.7%0.0%0.2%
0.3%0.1%0.2%0.6%0.1%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
15.85 2.75 4.16 0.00 0.1
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
15.91 2.76 4.21 0.00 0.1
Instrument Range
Span Gas Value
Gas
Calibration Information
Zero%
Span%
Calibration
Pretest Calibration
Zero%
Span%
High Load
Run 1
Results
Post Test Calibration
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Page 2 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 11:35
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 11:55
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.0 10.0 10.0 10.1
0.0 0.0 0.0 0.0 0.0
10.0 10.1 10.1 10.0 10.1
0.0%0.0%0.0%0.8%0.2%
0.1%0.7%0.5%0.1%0.0%
0.0%0.0%0.0%0.0%0.0%
0.0%0.5%0.1%0.2%0.1%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.00 2.73 4.19 0.05 0.1
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
15.99 2.75 4.21 0.05 0.1
Span%
Results
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Zero%
Span Gas Value
Calibration
Pretest Calibration
Zero%
Span%
High Load
Run 2
Calibration Information
Gas
Instrument Range
Post Test Calibration
Page 3 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 12:07
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 12:27
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.1 10.1 10.0 10.1
10.15%
0.0 0.0 0.0 0.0 0.0
10.0 10.0 9.9 9.9 10.1
0.0%0.0%0.0%0.8%0.2%
0.2%0.3%0.1%0.3%0.2%
0.0%0.0%0.0%0.0%0.0%
0.0%0.5%0.7%0.1%0.2%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
15.70 2.73 4.21 0.00 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
15.68 2.75 4.20 0.00 0.0
Calibration Information
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Results
Absolute Bias (Zero)
Gas
Instrument Range
High Load
Run 3
Span%
Span%
Zero%
Span Gas Value
Calibration
Pretest Calibration
Post Test Calibration
Zero%
Page 4 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah
Turbine Unit 2
Test Date 7/10/2024
Run #1 2 3 Average
Start Time 12:53 13:28 14:00
Stop Time 13:13 13:48 14:20
Sample Duration (minutes)20 20 20
BHP Engine Load - Actual (NGP)100 100 100 100
DS Stack Diameter (inches)101.55 101.55 101.55 101.55
√∆PAVG Average (Delta P)½ (" H2O)½0.6150 0.6150 0.6150 0.6150
CP Pitot Tube Constant (unitless)0.840 0.840 0.840 0.840
TS Stack Temperature (°F)880.70 880.70 880.70 880.70
Pbar Barometric Pressure (mbar)867 867 867 867
Pbar Barometric Pressure (" Hg)25.60 25.60 25.60 25.60
Ps Stack Pressure ('' H2O)0.01 0.01 0.01 0.01
Yd Meter Y Factor (unitless)0.9800 0.9800 0.9800 0.9800
Tm Meter Temperature (°F)94.0 94.0 94.0 94.0
Vm Sample Volume (ft3)27.485 27.485 27.485 27.485
∆H Orifice Pressure Delta H (" H2O)1.000 1.000 1.000 1.000
Vlc Moisture (g)29.80 29.80 29.80 29.80
DB (°F)Dry Bulb Temperature (°F)98.00 98.00 98.00 98.00
DB (°C)Dry Bulb Temperature (°C)36.67 36.67 36.67 36.67
PF (" H2O)Inlet Pressure Drop (''H2O)2.30 2.30 2.30 2.30
RH (%)Relative Humidity (%)10.00 10.00 10.00 10.00
Fd Fd value (dscf/MMBtu)8605 8605 8605 8605
O2%vd O2 (%vd)16.0 16.1 16.1 16.1
CO2%vd CO2 (%vd)2.6 2.6 2.6 2.6
N2%vd N2 (%vd)81.4 81.4 81.3 81.3
dry NOX (ppmvd)3.4 3.3 3.3 3.4
dry CO (ppmvd)1.1 0.1 0.0 0.4
wet VOC (ppmvw as C3H8)0.0 0.1 0.1 0.1
Run #1 2 3 Average
scfh Fuel Consumption (scfh) 80200 80500 80600 80433
Btu/scf Heat Value (Btu/scf)1032.9 1032.9 1032.9 1032.9
MMBtu/hr Fuel Use (MMBtu/hr)82.8 83.1 83.3 83.1
Run #1 2 3 Average
Vmstd Sample Volume (dscf)22.019 22.019 22.019 22.019
Vwstd Moisture Volume (scf)1.41 1.41 1.41 1.41
Bws Measured Moisture Content (%/100)0.060 0.060 0.060 0.060
Bws Saturated Moisture Content (%/100)587.299 587.299 587.299 587.299
Bws Actual Moisture Content (%/100)0.060 0.060 0.060 0.060
MD Molecular Weight Dry (lb/lb-mole)29.06 29.06 29.06 29.06
MA Molecular Weight Wet (lb/lb-mole)28.39 28.39 28.40 28.39
VS Gas Velocity (ft/sec)60.0 60.0 60.0 60.0
FACFM Gas Flow (acfm)202425 202434 202421 202427
FDSCFM Gas Flow (dscfm)64118 64121 64117 64118
lb/hr Gas Flow (lb/hr)301606 301593 301611 301603
Fo Fo (unitless)1.881 1.874 1.841 1.865
wet O2 (%vw)15.0 15.1 15.2 15.1
wet CO2 (%vw)2.5 2.4 2.4 2.4
wet NOX (ppmvw)3.229 3.132 3.124 3.162
15 NOX (ppmvd @ 15% O2)4.111 4.067 4.122 4.100 15.0
15, ISO NOx (ppmvd @ 15% O2, ISO)3.852 3.810 3.862 3.841
lb/hr NOX (lb/hr)1.577 1.529 1.525 1.544 6.45
Fd NOX (lb/MMBtu)0.015 0.015 0.015 0.015
tpy NOX (tons/year)0.000 0.000 0.000 0.000
lb/hr - M19 NOX (lb/hr)1.239 1.231 1.249 1.240 6.45
wet CO (ppmvw)1.018 0.066 0.000 0.361
15 CO (ppmvd @ 15% O2)1.296 0.085 0.000 0.460 25.0
lb/hr CO (lb/hr)0.303 0.020 0.000 0.107 6.54
Fd CO (lb/MMBtu)0.003 0.000 0.000 0.001
lb/hr - M19 CO (lb/hr)0.238 0.016 0.000 0.085 6.54
dry VOC (ppmvd as C3H8)0.043 0.074 0.053 0.057
15 VOC (ppmvd as C3H8 @ 15% O2)0.051 0.091 0.066 0.069 25.0
lb/hr VOC (lb/hr as C3H8)0.019 0.033 0.023 0.025 0.75
Fd VOC (lb/MMBtu as C3H8)0.000 0.000 0.000 0.000
lb/hr - M19 VOC (lb/hr as C3H8)0.015 0.026 0.019 0.020 0.75
mm Hg of H2O 4.611 4.611 4.611 4.611
Ambient H2O (%/100)0.007 0.007 0.007 0.007
g H2O / g Dry Air 0.004 0.004 0.004 0.004
Field Reference Method Data
Fuel Use Data and Calculations
Reference Method Calculations
High Mid Load
Permit Limits
Page 5 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 12:53
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 13:13
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.0 9.9 9.9 10.1
0.0 0.0 0.0 0.0 0.0
10.0 10.1 10.0 10.0 10.1
0.0%0.0%0.0%0.8%0.2%
0.0%0.4%0.4%0.2%0.1%
0.0%0.0%0.0%0.0%0.0%
0.2%0.1%0.4%0.5%0.0%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
15.97 2.62 3.44 1.08 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
15.97 2.63 3.43 1.08 0.0
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
High Mid Load
Run 1
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 6 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 13:28
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 13:48
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.1 10.0 10.0 10.0
0.2 0.0 0.0 0.0 0.0
10.0 10.0 10.0 10.0 10.1
0.7%0.0%0.0%0.8%0.2%
0.0%0.3%0.2%0.1%0.2%
0.7%0.0%0.0%0.0%0.0%
0.0%0.1%0.1%0.0%0.4%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.07 2.58 3.33 0.07 0.1
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.05 2.59 3.33 0.07 0.1
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
High Mid Load
Run 2
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 7 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 14:00
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 14:20
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.2 0.0 0.0 0.0 0.0
10.0 10.0 10.0 10.0 10.1
0.1 0.0 0.0 0.0 0.0
10.0 10.0 9.9 9.9 10.1
0.4%0.0%0.0%0.8%0.2%
0.2%0.3%0.0%0.4%0.2%
0.3%0.0%0.0%0.0%0.0%
0.2%0.0%0.2%0.4%0.0%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.14 2.58 3.32 0.00 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.07 2.59 3.31 0.00 0.1
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
High Mid Load
Run 3
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 8 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah
Turbine Unit 2
Test Date 7/10/2024
Run #1 2 3 Average
Start Time 14:38 15:14 15:53
Stop Time 14:58 15:34 16:13
Sample Duration (minutes)20 20 20
BHP Engine Load - Actual (NGP)97 97 97 97
DS Stack Diameter (inches)101.55 101.55 101.55 101.55
√∆PAVG Average (Delta P)½ (" H2O)½0.6100 0.6100 0.6100 0.6100
CP Pitot Tube Constant (unitless)0.840 0.840 0.840 0.840
TS Stack Temperature (°F)886.30 886.30 886.30 886.30
Pbar Barometric Pressure (mbar)866.9 866.9 866.9 867
Pbar Barometric Pressure (" Hg)25.60 25.60 25.60 25.60
Ps Stack Pressure ('' H2O)0.01 0.01 0.01 0.01
Yd Meter Y Factor (unitless)0.9800 0.9800 0.9800 0.9800
Tm Meter Temperature (°F)99.0 99.0 99.0 99.0
Vm Sample Volume (ft3)27.160 27.160 27.160 27.160
∆H Orifice Pressure Delta H (" H2O)1.000 1.000 1.000 1.000
Vlc Moisture (g)27.90 27.90 27.90 27.90
DB (°F)Dry Bulb Temperature (°F)101.00 102.00 103.00 102.00
DB (°C)Dry Bulb Temperature (°C)38.33 38.89 39.44 38.89
PF (" H2O)Inlet Pressure Drop (''H2O)2.00 2.10 2.10 2.07
RH (%)Relative Humidity (%)10.00 10.00 10.00 10.00
Fd Fd value (dscf/MMBtu)8605 8605 8605 8605
O2%vd O2 (%vd)16.1 16.2 16.2 16.2
CO2%vd CO2 (%vd)2.6 2.5 2.4 2.5
N2%vd N2 (%vd)81.3 81.3 81.4 81.4
dry NOX (ppmvd)3.6 3.2 3.3 3.4
dry CO (ppmvd)0.2 1.2 0.5 0.6
wet VOC (ppmvw as C3H8)0.0 0.2 0.1 0.1
Run #1 2 3 Average
scfh Fuel Consumption (scfh) 73700 73400 73000 73367
Btu/scf Heat Value (Btu/scf)1032.9 1032.9 1032.9 1032.9
MMBtu/hr Fuel Use (MMBtu/hr)76.1 75.8 75.4 75.8
Run #1 2 3 Average
Vmstd Sample Volume (dscf)21.564 21.564 21.564 21.564
Vwstd Moisture Volume (scf)1.32 1.32 1.32 1.32
Bws Measured Moisture Content (%/100)0.057 0.057 0.057 0.057
Bws Saturated Moisture Content (%/100)601.755 601.755 601.755 601.755
Bws Actual Moisture Content (%/100)0.057 0.057 0.057 0.057
MD Molecular Weight Dry (lb/lb-mole)29.05 29.05 29.04 29.05
MA Molecular Weight Wet (lb/lb-mole)28.42 28.41 28.40 28.41
VS Gas Velocity (ft/sec)59.6 59.6 59.6 59.6
FACFM Gas Flow (acfm)201116 201144 201170 201143
FDSCFM Gas Flow (dscfm)63606 63615 63623 63615
lb/hr Gas Flow (lb/hr)298653 298611 298573 298612
Fo Fo (unitless)1.877 1.893 1.941 1.904
wet O2 (%vw)15.2 15.3 15.2 15.2
wet CO2 (%vw)2.4 2.3 2.3 2.4
wet NOX (ppmvw)3.364 3.043 3.140 3.182
15 NOX (ppmvd @ 15% O2)4.382 4.056 4.142 4.193 15.0
15, ISO NOx (ppmvd @ 15% O2, ISO)4.103 3.799 3.880 3.927
lb/hr NOX (lb/hr)1.625 1.470 1.518 1.538 6.45
Fd NOX (lb/MMBtu)0.016 0.015 0.015 0.015
lb/hr - M19 NOX (lb/hr)1.214 1.119 1.137 1.157 6.45
wet CO (ppmvw)0.208 1.130 0.443 0.593
15 CO (ppmvd @ 15% O2)0.271 1.506 0.584 0.787 25.0
lb/hr CO (lb/hr)0.061 0.332 0.130 0.175 6.54
Fd CO (lb/MMBtu)0.001 0.003 0.001 0.002
lb/hr - M19 CO (lb/hr)0.046 0.253 0.098 0.132 6.54
dry VOC (ppmvd as C3H8)0.026 0.174 0.158 0.119
15 VOC (ppmvd as C3H8 @ 15% O2)0.032 0.218 0.196 0.149 25.0
lb/hr VOC (lb/hr as C3H8)0.011 0.076 0.069 0.052 0.75
Fd VOC (lb/MMBtu as C3H8)0.000 0.001 0.001 0.001
lb/hr - M19 VOC (lb/hr as C3H8)0.009 0.058 0.051 0.039 0.75
mm Hg of H2O 5.047 5.201 5.358 5.202
Ambient H2O (%/100)0.008 0.008 0.008 0.008
g H2O / g Dry Air 0.005 0.005 0.005 0.005
Field Reference Method Data
Fuel Use Data and Calculations
Reference Method Calculations
Low Mid Load
Permit
Limits
Page 9 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 14:38
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 14:58
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.0 9.9 9.9 10.1
0.1 0.0 0.0 0.0 0.0
10.0 10.1 10.0 10.0 10.1
0.5%0.0%0.0%0.8%0.1%
0.0%0.7%0.0%0.1%0.3%
0.5%0.0%0.0%0.0%0.1%
0.2%0.5%0.0%0.5%0.1%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.09 2.56 3.57 0.22 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.06 2.58 3.55 0.22 0.0
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
Low Mid Load
Run 1
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 10 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 15:14
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 15:34
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.1 0.0 0.0 0.0 0.0
10.0 10.1 10.0 10.0 10.1
0.0 0.0 0.0 0.0 0.0
10.0 10.1 10.1 10.0 10.1
0.0%0.0%0.0%0.8%0.2%
0.2%0.6%0.6%0.0%0.1%
0.5%0.0%0.0%0.0%0.1%
0.2%0.1%0.6%0.1%0.2%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.20 2.48 3.23 1.20 0.2
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.17 2.51 3.23 1.20 0.2
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
Low Mid Load
Run 2
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 11 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 15:53
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 16:13
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.1 10.0 10.0 10.1
0.0 0.0 0.0 0.0 0.0
10.0 10.0 9.9 10.0 10.1
0.0%0.0%0.0%0.8%0.2%
0.1%0.2%0.1%0.1%0.2%
0.0%0.0%0.0%0.0%0.0%
0.0%0.4%0.4%0.1%0.1%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.15 2.45 3.33 0.47 0.1
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.13 2.46 3.32 0.47 0.2
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
Low Mid Load
Run 3
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 12 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah
Turbine Unit 2
Test Date 7/10/2024
Run #1 2 3 Average
Start Time 16:27 16:59 17:27
Stop Time 16:47 17:19 17:47
Sample Duration (minutes)20 20 20
BHP Engine Load - Actual (NGP)94.2 94.2 94.2 94
DS Stack Diameter (inches)101.55 101.55 101.55 101.55
√∆PAVG Average (Delta P)½ (" H2O)½0.6100 0.6100 0.6100 0.6100
CP Pitot Tube Constant (unitless)0.840 0.840 0.840 0.840
TS Stack Temperature (°F)885.60 885.60 885.60 885.60
Pbar Barometric Pressure (mbar)866.9 866.9 866.9 867
Pbar Barometric Pressure (" Hg)25.60 25.60 25.60 25.60
Ps Stack Pressure ('' H2O)0.10 0.10 0.10 0.10
Yd Meter Y Factor (unitless)0.9800 1.0100 1.0100 1.0000
Tm Meter Temperature (°F)96.0 96.0 96.0 96.0
Vm Sample Volume (ft3)27.115 27.115 27.115 27.115
∆H Orifice Pressure Delta H (" H2O)1.000 1.000 1.000 1.000
Vlc Moisture (g)25.73 25.73 25.73 25.73
DB (°F)Dry Bulb Temperature (°F)102.00 102.00 102.00 102.00
DB (°C)Dry Bulb Temperature (°C)38.89 38.89 38.89 38.89
PF (" H2O)Inlet Pressure Drop (''H2O)1.80 1.80 1.80 1.80
RH (%)Relative Humidity (%)6.00 5.00 5.00 5.33
Fd Fd value (dscf/MMBtu)8605 8605 8605 8605
O2%vd O2 (%vd)16.2 16.2 16.2 16.2
CO2%vd CO2 (%vd)2.4 2.4 2.4 2.4
N2%vd N2 (%vd)81.4 81.4 81.4 81.4
dry NOX (ppmvd)3.2 3.2 3.0 3.1
dry CO (ppmvd)1.1 0.6 0.5 0.7
wet VOC (ppmvw as C3H8)0.0 0.0 0.0 0.0
Run #1 2 3 Average
scfh Fuel Consumption (scfh) 67000 66800 66600 66800
Btu/scf Heat Value (Btu/scf)1032.9 1032.9 1032.9 1032.9
MMBtu/hr Fuel Use (MMBtu/hr)69.2 69.0 68.8 69.0
Run #1 2 3 Average
Vmstd Sample Volume (dscf)21.644 22.307 22.307 22.086
Vwstd Moisture Volume (scf)1.21 1.21 1.21 1.21
Bws Measured Moisture Content (%/100)0.053 0.052 0.052 0.052
Bws Saturated Moisture Content (%/100)599.781 599.781 599.781 599.781
Bws Actual Moisture Content (%/100)0.053 0.052 0.052 0.052
MD Molecular Weight Dry (lb/lb-mole)29.03 29.03 29.03 29.03
MA Molecular Weight Wet (lb/lb-mole)28.45 28.46 28.46 28.46
VS Gas Velocity (ft/sec)59.5 59.5 59.5 59.5
FACFM Gas Flow (acfm)200923 200867 200873 200888
FDSCFM Gas Flow (dscfm)63893 63976 63978 63949
lb/hr Gas Flow (lb/hr)298890 298975 298965 298944
Fo Fo (unitless)1.968 1.957 1.965 1.963
wet O2 (%vw)15.3 15.4 15.4 15.4
wet CO2 (%vw)2.3 2.3 2.2 2.3
wet NOX (ppmvw)3.036 3.038 2.845 2.973
15 NOX (ppmvd @ 15% O2)4.005 4.051 3.805 3.954 15.0
15, ISO NOx (ppmvd @ 15% O2, ISO)3.609 3.615 3.395 3.540
lb/hr NOX (lb/hr)1.466 1.467 1.374 1.436 6.45
Fd NOX (lb/MMBtu)0.015 0.015 0.014 0.014
lb/hr - M19 NOX (lb/hr)1.009 1.017 0.953 0.993 6.45
wet CO (ppmvw)1.050 0.550 0.427 0.676
15 CO (ppmvd @ 15% O2)1.385 0.734 0.571 0.897 25.00
lb/hr CO (lb/hr)0.309 0.162 0.126 0.199 6.540
Fd CO (lb/MMBtu)0.003 0.002 0.001 0.002
lb/hr - M19 CO (lb/hr)0.212 0.112 0.087 0.137 6.54
dry VOC (ppmvd as C3H8)0.011 0.032 0.021 0.021
15 VOC (ppmvd as C3H8 @ 15% O2)0.013 0.040 0.027 0.027 25.00
lb/hr NMOC (lb/hr as C3H8)0.005 0.014 0.009 0.009 0.75
Fd VOC (lb/MMBtu as C3H8)0.000 0.000 0.000 0.000
lb/hr - M19 VOC (lb/hr as C3H8)0.003 0.010 0.006 0.006 0.75
mm Hg of H2O 3.128 2.607 2.607 2.781
Ambient H2O (%/100)0.005 0.004 0.004 0.004
g H2O / g Dry Air 0.003 0.003 0.003 0.003
Field Reference Method Data
Fuel Use Data and Calculations
Reference Method Calculations
Low Load
Permit
Limits
Page 13 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 16:27
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 16:47
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.0 10.0 9.9 10.0 10.1
0.0 0.0 0.0 0.0 0.0
10.1 10.1 10.0 10.0 10.1
0.0%0.0%0.0%0.8%0.2%
0.3%0.5%0.2%0.0%0.3%
0.0%0.0%0.0%0.0%0.0%
0.5%0.3%0.3%0.1%0.0%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.18 2.40 3.21 1.11 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.25 2.41 3.19 1.11 0.0
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
Low Load
Run 1
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 14 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 16:59
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 17:19
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.0 0.0 0.0 0.0 0.0
10.1 10.1 10.0 10.0 10.1
0.2 0.0 0.0 0.0 0.0
10.0 10.0 9.9 10.0 10.1
0.7%0.0%0.0%0.8%0.2%
0.2%0.3%0.0%0.1%0.0%
0.7%0.0%0.0%0.0%0.0%
0.5%0.4%0.5%0.2%0.4%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.23 2.38 3.20 0.58 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.25 2.40 3.20 0.58 0.0
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
Low Load
Run 2
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 15 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah Start Time 17:27
Turbine Unit 2 Run Length 20
Test Date 7/10/2024 Stop Time 17:47
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20
10.00 10.00 10.00 10.00 10.0
0.2 0.0 0.0 0.0 0.0
10.0 10.0 9.9 10.0 10.1
0.2 0.0 0.0 0.0 0.0
10.1 10.0 10.1 10.0 10.1
0.7%0.0%0.0%0.8%0.2%
0.4%0.2%0.9%0.1%0.1%
0.0%0.0%0.0%0.0%0.0%
0.6%0.1%1.0%0.2%0.2%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
16.25 2.37 3.00 0.45 0.0
Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC
ppm
16.23 2.37 3.01 0.45 0.0
Calibration
Pretest Calibration
Zero%
Span%
Post Test Calibration
Zero%
Span%
Results
Low Load
Run 3
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Span Gas Value
Page 16 of 17
Kern River Gas Transmission Company
Salt Lake Compressor Station
Salt Lake County, Utah
Turbine Unit 2
Test Date 7/10/2024
O2 CO2 NOX CO NMOC
23.95 23.90 20.00 20.00 20.0
10.00 10.00 10.00 10.00 10.0
0.00 0.00 0.13 0.00 0.0
10.08 10.04 10.00 10.13 10.1
Linearity Bias (Zero)0.0 0.0 0.0 -0.2 0.0
Linearity Bias (Span)10.0 10.0 10.0 10.0 10.1
%%(ppm)(ppm)(ppm)
0.00 0.00 0.00 0.00 0.0
10.00 10.000 10.00 10.00 7.0
23.95 23.90 20.00 20.00 10.0
18.0
0.0 0.0 0.0 -0.2 0.0
10.0 10.0 10.0 10.0 7.1
23.9 23.9 20.0 20.0 10.1
18.2
0.0 0.0 0.0 0.2 0.0
0.0 0.0 0.1 0.0 0.0
0.0 0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0 0.2
0.04%0.00%0.65%0.75%0.00%
0.25%0.33%0.25%0.70%0.00%
0.08%0.17%0.25%0.75%0.17%
Span Bias
Max Calibration Error
Bias Check (Zero)
Bias Check (Span)
2
3
4
Results
3
Zero Bias
2
3
4
Difference
1
4
Response
1
2
Gas
Span Gas Value/Range
Bias Gas Value
Linearity Information
Gas Concentration
1
Page 17 of 17