DAQ-2024-011659

1

DAQC-1173-24
Site ID: 14265(B4)
MEMORANDUM

TO: STACK TEST FILE – KERN RIVER GAS TRANSMISSION COMPANY –
Milford Compressor Station

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

FROM: Paul Bushman, Environmental Scientist

DATE: November 20, 2024

SUBJECT: Source: Milford Compressor Station – Turbine: Unit 1
Contact: Reed Kitchen: 801-937-6163
Location: 800 East 7900 South, Minersville, Utah
Test Contractor: Alliance Technical Group
Permit/AO#: Approval Order AN0142650001-10 dated March 29, 2010
Action Code: TR
Subject: Review of stack test report dated November 8, 2024
On November 12, 2024, Utah Division of Air Quality (DAQ) received a test report for the above listed
unit at Kern River Gas Transmission Company – Milford Compressor Station in Minersville, Utah.
Testing was performed October 9, 2024, to demonstrate compliance with the emission limits found in
condition II.B.2 of Approval Order DAQE-AN0142650001-10 and 40 CFR Part 60, Subpart KKKK. The
calculated test results are:

Source Test Date Test
Method Pollutant Tester Results DAQ Results Limits
Unit #1 October 9,
2024
7E NOx
5.52 ppmvd @
15% O2
5.518 ppmvd @
15% O2
15 ppmvd @
15% O2
3.21 lb/hr 3.245 lb/hr 10.7 lb/hr
10 CO
0.63 ppmvd @
15% O2
0.632 ppmvd @
15% O2
25 ppmvd @
15% O2
0.22 lb/hr 0.225 lb/hr 10.86 lb/hr
25A VOC
0.045 ppmvd @
15% O2
0.045 ppmvd @
15% O2
25 ppmvd @
15% O2
0.025 lb/hr 0.025 lb/hr 1.24 lb/hr

DEVIATIONS: None.

CONCLUSION: The stack test report appears to be acceptable.

RECOMMENDATION: The emissions from the above unit should be considered to have been in
compliance with the emission limits of condition II.B.2 found in
Approval Order DAQE-AN0142650001-10 and 40 CFR Part 60, Subpart
KKKK during testing.

ATTACHMENTS: DAQ stack test review excel spreadsheets, Kern River Gas Transmission
Company stack test report
Kern River Gas Transmission Compnay
Milford Compressor Station
Minersville, Utah
Solar Titan 250-30000S Turbine, Unit 1
Test date: 10/9/2024
Run #1 2 3 Average
Start Time 9:56 11:17 12:34
Stop Time 10:56 12:17 13:34
Sample Duration (minutes) 20 20 20
DS Stack Diameter (inches) 126.64 126.64 126.64 126.6
Pbar Barometric Pressure (" Hg) 25.04 25.04 25.04 25.04
Yd Meter Y Factor (unitless) 1.0030 1.0030 1.0030 1.0030
Tm Meter Temperature (°F) 77.0 77.0 77.0 77
Vm Sample Volume (ft3)48.510 48.510 48.510 48.510
DH Orifice Pressure Delta H (" H2O)1.7 1.7 1.7 1.7
Vlc Moisture (g) 58.5 58.5 58.5 58.5
O2%vd O2 (%vd)15.5 15.5 15.5 15.5
CO2%vd CO2 (%vd)3.3 3.3 3.3 3.3
N2%vd N2 (%vd)81.2 81.2 81.2 81.2
dry NOX (ppmvd)4.9 4.8 5.3 5.0
dry CO (ppmvd) 0.3 0.6 0.8 0.6
wet CH4 (ppmvw)0.0 0.1 0.1 0.0
Run #1 2 3 Average
scfh Fuel Consumption (scfh) 156478.7 150986.5 149234.5 152233.2
Btu/scf Heat Value (Btu/scf)1048.9 1048.9 1048.9 1048.9
MMBtu/hr Fuel Use (MMBtu/hr)164.1 158.4 156.5 159.7
Run #1 2 3 Average
Vmstd Sample Volume (dscf) 40.220 40.220 40.220 40.220
Vwstd Moisture Volume (scf) 2.76 2.76 2.76 2.76
Bws Measured Moisture Content (%/100) 0.064 0.064 0.064 0.064
MD Molecular Weight Dry (lb/lb-mole) 29.15 29.15 29.15 29.15
MA Molecular Weight Wet (lb/lb-mole) 28.43 28.43 28.43 28.43
VS Gas Velocity (ft/sec) 108.4 115.7 113.6 112.6
FACFM Gas Flow (acfm) 569059 607323 596466 590949
FDSCFM Gas Flow (dscfm) 179690 188496 185071 184419 Permit Limits
wet NOX (ppmvw)4.631 4.503 4.961 4.698
15 NOX (ppmvd @ 15% O2)5.416 5.300 5.839 5.518 15
Fd NOX (lb/MMBtu)0.020 0.020 0.022 0.020
lb/hr - M19 NOX (lb/hr)3.275 3.092 3.367 3.245 10.70
wet CO (ppmvw) 0.313 0.540 0.760 0.537
15 CO (ppmvd @ 15% O2)0.366 0.635 0.894 0.632 25.0
Fd CO (lb/MMBtu) 0.001 0.001 0.002 0.001
lb/hr - M19 CO (lb/hr)0.135 0.226 0.314 0.225 10.86
dry VOC (ppmvd as C3H8)0.000 0.056 0.067 0.041
15 VOC (ppmvd as C3H8 @ 15% O2)0.000 0.061 0.074 0.045 25.0
Fd NMOC (lb/MMBtu as C3H8)0.000 0.000 0.000 0.000
lb/hr - M19 VOC (lb/hr as C3H8)0.000 0.034 0.041 0.025 1.240
Field Reference Method Data
Reference Method Calculations
Fuel Use Data and Calculations
Kern River Gas Transmission Compnay
Milford Compressor Station
Minersville, Utah
Solar Titan 250-30000S Turbine, Unit 1
Test date: 10/9/2024
O2 CO2 NOX CO NMOC
23.99 23.90 30.00 30.00 26.00
11.00 10.90 15.00 15.00 16.00
0.06 -0.04 0.24 -0.18 -0.21
10.97 11.18 13.55 14.60 16.20
Linearity Bias (Zero) 0.0 0.0 0.0 0.0 0.0
Linearity Bias (Span) 11.0 11.2 14.8 14.5 16.1
% % (ppm) (ppm) (ppm)
0.00 0.00 0.00 0.00 0.00
11.00 10.90 15.00 15.00 10.00
23.99 23.90 30.00 30.00 16.00
26.00
0.0 0.0 0.0 0.0 0.0
11.0 11.2 14.8 14.5 10.2
24.0 23.8 30.1 30.1 16.1
26.0
0.0 0.0 0.0 0.0 0.0
0.0 0.3 0.3 0.5 0.3
0.0 0.1 0.1 0.1 0.1
0.0 0.0 0.0 0.0 0.0
0.25% 0.13% 0.67% 0.60% 0.73%
0.13% 0.04% 4.00% 0.33% 0.31%
0.13% 1.21% 0.83% 1.67% 2.52%Max Calibration Error
Bias Check (Zero)
Bias Check (Span)
2
3
4
Results
3
Zero Bias
2
3
4
Difference
1
4
2
Gas
Span Gas Value/Range
Bias Gas Value
Span Bias
Linearity Information
Gas Concentration
1
Response
1
Kern River Gas Transmission Compnay Run 1
Milford Compressor Station
Minersville, Utah Start Time 11:38
Solar Titan 250-30000S Turbine, Unit 1 Run Length 20
Test date: 10/9/2024 Stop Time 11:58
O2 CO2 NOX CO NMOC
24.0 23.9 30 30 26
11.00 10.90 15.0 15.0 16.0
0.06 -0.04 0.24 -0.18 -0.21
10.97 11.18 13.55 14.60 16.20
0.07 -0.04 0.21 -0.23 -0.02
10.97 11.19 14.39 14.14 16.20
0.3%0.1%0.6%0.8%0.0%
0.1%0.0%1.2%1.2%0.3%
0.0%0.0%0.1%0.2%0.7%
0.0%0.0%2.8%1.5%0.0%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
15.5 3.3 4.9 0.3 0.000
Run Length
(Minutes) Time Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC ppm
15.4400 3.3600 4.7600 0.1200 -0.4300
Gas
Calibration Information
Zero%
Calibration
Pretest Calibration
Zero%
Span%
Instrument Range
Span Gas Value
Results
Post Test Calibration
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Span%
Kern River Gas Transmission Compnay Run 2
Milford Compressor Station
Minersville, Utah Start Time 12:43
Solar Titan 250-30000S Turbine, Unit 1 Run Length 20
Test date: 10/9/2024 Stop Time 13:03
O2 CO2 NOX CO NMOC
24.0 23.9 30 30 26
11.00 10.90 15.0 15.0 16.0
0.07 -0.04 0.21 -0.23 -0.02
10.97 11.19 14.39 14.14 16.20
0.09 -0.01 0.18 -0.29 -0.05
10.93 11.16 14.09 13.95 16.05
0.4%0.0%0.5%1.0%0.1%
0.3%0.1%2.2%1.8%0.3%
0.1%0.1%0.1%0.2%0.1%
0.2%0.1%1.0%0.6%0.6%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
15.5 3.3 4.8 0.6 0.1
Run Length
(Minutes) Time Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC ppm
15.4400 3.3700 4.7000 0.2900 0.0560
Span%
Results
Absolute Bias (Zero)
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Calibration Information
Gas
Instrument Range
Post Test Calibration
Zero%
Span Gas Value
Calibration
Pretest Calibration
Zero%
Span%
Kern River Gas Transmission Compnay Run 3
Milford Compressor Station
Minersville, Utah Start Time 13:20
Solar Titan 250-30000S Turbine, Unit 1 Run Length 20
Test date: 10/9/2024 Stop Time 13:40
O2 CO2 NOX CO NMOC
24.0 23.9 30 30 26
11.00 10.90 15.0 15.0 16.0
0.09 -0.01 0.18 -0.29 -0.05
10.93 11.16 14.09 13.95 16.05
0.05 -0.01 0.20 -0.31 0.08
10.95 11.21 13.85 13.91 16.07
0.2%0.0%0.5%1.0%0.4%
0.2%0.1%3.0%2.0%0.2%
0.2%0.0%0.1%0.1%0.5%
0.1%0.2%0.8%0.1%0.1%
Corrected O2 % Corrected CO2 % Corrected NOX ppm Corrected CO ppm Corrected TVOC ppm
15.5 3.3 5.3 0.8 0.1
Run Length
(Minutes) Time Uncorrected O2 % Uncorrected CO2 % Uncorrected NOX ppm Uncorrected CO ppm Uncorrected TVOC ppm
15.4300 3.3600 5.0600 0.4700 0.0670
Calibration Information
Absolute Bias (Span)
Absolute Drift (Zero)
Absolute Drift (Span)
Results
Absolute Bias (Zero)
Gas
Instrument Range
Span%
Span%
Zero%
Span Gas Value
Calibration
Pretest Calibration
Post Test Calibration
Zero%