DAQ-2024-004270

1

DAQC-035-24
Site ID 14788 (B4)

MEMORANDUM

TO: STACK TEST FILE – WEXPRO COMPANY – Clay Basin Compressor Station

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

FROM: Kyle Greenberg, Environmental Scientist

DATE: January 10, 2024

SUBJECT: Sources: Unit: ICE-1; Waukesha L7042GSI; SN: WAU-1654195
Contact: Sean Warden: 804-389-2730
Location: Remote Location in Daggett County, Utah
Test Contractor: Oasis Emission Consultants, Inc.
Permit/AO#: DAQE-AN147880007-23, dated July 31, 2023
Action Code: TR
Subject: Review of stack test report dated December 27, 2023

On December 27, 2023, Utah Division of Air Quality (DAQ) received a test report for Unit ICE-1 at Clay
Basin Compressor Station in Daggett County, Utah. Testing was performed on November 9, 2023, to
demonstrate compliance with the emission limits found in condition II.B.2 of DAQE-AN147880007-23
and 40 CFR Part 60, Subpart JJJJ. The calculated test results are:

Source Test
Date
Test
Method
Pollutant Tester
Results
DAQ Results Limits
Unit:
ICE-1
Nov. 9,
2023
ASTM D
6348-03 NOx
0.66 lb/hr

0.3 g/bhp-hr

18
ppm@15%O2
0.662 lb/hr

0.344 g/bhp-hr

18.217
ppm@15%O2O2
3.30 lb/hr

1.0 g/bhp-hr

82
ppm@15%O2
ASTM D
6348-03 CO
0.31 lb/hr

0.2 g/bhp-hr

14
ppm@15%O2
0.311 lb/hr

0.161 g/bhp-hr

14.055
ppm@15%O2
2.30 lb/hr

0.7 g/bhp-hr

270
ppm@15%O2
ASTM D
6348-03 VOC
0.04 lb/hr

0.0 g/bhp-hr

1
ppm@15%O2
0.044 lb/hr

0.023 g/bhp-hr

1.267
ppm@15%O2
1.0 lb/hr

0.3 g/bhp-hr

60
ppm@15%O2

2

DEVIATIONS: None.

CONCLUSION: The stack test report appears to be acceptable.

RECOMMENDATION: The emissions from ICE-1 should be considered to have been in
compliance with the emission limits in Condition II.B.2 of
DAQE-AN147880007-23 and 40 CFR Part 60, Subpart JJJJ during the
time of testing.

HPV: N/A

ATTACHMENTS: DAQ stack test review excel spreadsheets, Oasis Emissions stack test
report.
Emissions
Wexpro Company
Clay Basin Compressor Station
Dagger County, Utah
Unit: ICE-1; Waukesha L7042GSI; SN: WAU-1654195
Test Date: 11/9/23
Run #1 2 3 Average
Start Time 11:05 12:06 13:07
Stop Time 12:05 13:06 14:07
Sample Duration (minutes)60 60 60
BHP Engine Load - Actual (bhp) 873 873 873 873
DS Stack Diameter (inches)16.0 16.0 16.0 16.0
PAVG Average (Delta P)½ (" H2O)½0.6290 0.6210 0.6210 0.6237
CP Pitot Tube Constant (unitless)0.84 0.84 0.84 0.84
TS Stack Temperature (°F)755 753 753 754
Pbar Barometric Pressure (" Hg)23.95 23.94 23.93 23.94
Ps Stack Pressure ('' H2O)0.12 0.11 0.11 0.11
O2%vd O2 (%vd)0.0 0.0 0.0 0.0
CO2%vd CO2 (%vd)12.0 12.0 12.0 12.0
N2%vd N2 (%vd)88.0 88.0 88.0 88.0
dry NOX (ppmvd)64.3 63.0 66.3 64.5
dry CO (ppmvd) 50.0 49.9 49.5 49.8
wet TVOC (ppmvw as C3H8)3.6 3.7 3.6 3.6
Run #1 2 3 Average
Bws Measured Moisture Content (%/100)0.186 0.193 0.190 0.189
Bws Saturated Moisture Content (%/100)341.920 338.406 337.635 339.320
Bws Actual Moisture Content (%/100)0.186 0.193 0.190 0.189
MD Molecular Weight Dry (lb/lb-mole)29.920 29.920 29.920 29.920
MA Molecular Weight Wet (lb/lb-mole)27.709 27.626 27.658 27.664
VS Gas Velocity (ft/sec)61.115 60.392 60.357 60.622
FACFM Gas Flow (acfm)5119.952 5059.418 5056.491 5078.621
FDSCFM Gas Flow (dscfm)1449.466 1421.719 1425.641 1432.275
FWSCFM Gas Flow (wscfm)1781.127 1762.180 1761.151 1768.153
FKWSCFH Gas Flow (kwscfh)106.868 105.731 105.669 106.089
FKWSCFM Gas Flow (kwscfm)1.781 1.762 1.761 1.768
lb/hr Gas Flow (lb/hr) 7685.613 7580.987 7585.375 7617.325
Fo Fo (unitless)1.742 1.742 1.742 1.742
wet O2 (%vw)0.000 0.000 0.000 0.000
wet CO2 (%vw)9.772 9.688 9.720 9.726
wet NOX (ppmvw)52.343 50.860 53.711 52.305
15 NOX (ppmvd @ 15% O2)18.146 17.785 18.719 18.217 82.0
lb/hr NOX (lb/hr)0.667 0.641 0.677 0.662 3.30
g/bhp-hr NOX (g/bhp-hr)0.346 0.333 0.352 0.344 1.0
wet CO (ppmvw) 40.691 40.244 40.127 40.354
15 CO (ppmvd @ 15% O2)14.106 14.072 13.985 14.055 270.0
lb/hr CO (lb/hr) 0.316 0.309 0.308 0.311 2.30
g/bhp-hr CO (g/bhp-hr) 0.164 0.160 0.160 0.161 0.7
dry NMEOC (ppmvd as C3H8)4.380 4.600 4.480 4.487
15 NMEOC (ppmvd as C3H8 @ 15% O2)1.236 1.299 1.265 1.267 60
lb/hr NMEOC (lb/hr as C3H8)0.044 0.045 0.044 0.044 1.0
g/bhp-hr NMEOC (g/bhp-hr as C3H8)0.023 0.023 0.023 0.023 0.3
Permit Limits
Field Reference Method Data
Reference Method Calculations
Page 1 of 1

Dominion Energy Services, Inc.
120 Tredegar Street
Richmond, VA 23219

By Electronic Submittal

Utah Department of Environmental Quality
Division of Air Quality
P.O. Box 144820
Salt Lake City, Utah 84114-4820

RE: Dominion Energy Wexpro
Clay Basin Compressor Station
Initial Performance Test Report

To whom it may concern:

In accordance Approval Order # DAQE-AN147880001-13, Condition II.B.2.b.A and 40 CFR
60, Subpart JJJJ, Wexpro Company (dba Dominion Energy Wexpro) conducted an annual
performance test at the Clay Basin Compressor Station on the Waukesha L7042GSI
engine, Unit ID: ICE-1. The ICE-1 engine was tested for emissions of nitrogen oxides
(NOX), carbon monoxide (CO) and volatile organic compound (VOC) on November 09,
2023. As indicated in the enclosed report tested emission were below the permit limitations

Questions regarding this submittal should be referred to Sean Warden at [phone] or
via email at [e-mail].

Sincerely,

Todd M. Alonzo
Manager, Environmental – Corporate Air programs

December 27, 2023
CERTIFICATE OF DATA ACCURACY

Facility Name: Clay Basin Compressor Station

Permit Number: DAQE-AN147880001-13

Facility Location: Daggett County, Utah

Type of Submittal: Electronic

Certification Statement: I, Brady B. Rasmussen, certify under penalty of
law that, based on information and belief formed after reasonable inquiry,
the statements and information contained in this submission are true,
accurate and complete.

Name of Responsible Official (RO): Brady Rasmussen

Title: Vice President and General Manager

RO Signature: ____________________________________

Date: ________________________________________
Brady B Rasmussen
12/23/2023

Source Test Report
For
Dominion Energy Wexpro
Clay Basin Compressor Station

Test Date: November 9, 2023
Report Date: November 17, 2023

Federal Regulation: EPA 40 CFR 60, Subpart JJJJ
UDEQ Permit: DAQE-AN147880007-23 (Issuance Date: July
31, 2023)
Engine: Waukesha L7042GSI
SN: WAU-1654195
Unit ID: ICE-1

Prepared By:

Oasis Emission Consultants, Inc.
2730 Commercial Way
Rock Springs, WY 82901

November 17, 2023

Mr. Sean Warden
Dominion Energy Wexpro
120 Tredegar Street
Clearinghouse Building, 3rd Floor
Richmond, VA 23219

Re: Dominion Energy Wexpro
Clay Basin Compressor Station
UDEQ Permit DAQE-AN147880007-23
Performance Test Report ICE-1

Dear Mr. Warden:

An air emissions test program was conducted on a Waukesha L7042GSI engine, operated by
Dominion Energy Wexpro ICE-1, located at the Clay Basin Compressor Station in Daggett
County, Utah. The purpose of the testing was to demonstrate ongoing compliance with the
emissions limits contained in UDEQ Permit DAQE-AN147880007-23 and EPA 40 CFR 60,
Subpart JJJJ, for oxides of nitrogen (NOx), carbon monoxide (CO) and volatile organic
compounds (VOC).

Oasis Emission Consultants, Inc. conducted the testing on November 9, 2023.

UDEQ Permit DAQE-AN147880007-23 Emission Levels

The average recorded levels were found to comply with emission levels stipulated in the
UDEQ permit, as shown in the attached report and summarized below.

Emission
Unit
Avg
NOx
Permit
NOx
Avg
CO
Permit
CO
Avg
VOC
Permit
VOC
g/bhp-hr 0.3 1.0 0.2 0.7 0.0 0.3
lbs/hr 0.66 3.30 0.31 2.30 0.04 1.00
*VOC levels reported as non-methane, non-ethane hydrocarbon on a propane basis (NMNEHC C3).

EPA 40 CFR 60, Subpart JJJJ Emission Levels

The average recorded levels were found to comply with emission levels by EPA 40 CFR 60,
Subpart JJJJ, as shown in the attached report and summarized below.

Emission
Unit
Avg
NOx
Permit
NOx
Avg
CO
Permit
CO
Avg
VOC*
Permit
VOC
g/bhp-hr 0.3 1.0 0.2 2.0 0.0 0.7
ppm@15
% O2
18 82 14 270 1 60
*VOC levels reported as non-methane, non-ethane hydrocarbon on a propane basis (NMNEHC C3).

Catalyst Parameters (Averaged Over 3 Test Runs)

Inlet Temp (deg F) DP (in H2O)
754 2.0

Engine Load (Averaged Over 3 Test Runs)

Rated BHP Operating BHP % Load
1480 873.2 59.0

The engine was operating at 873.2 bhp and at maximum achievable load during emissions
testing. Therefore, the engine will be monitored for operations that would exceed 110% of the
tested load (960.5 bhp). If the engine should exceed the 110% load an emissions test will be
conducted at the new maximum achievable load.

Testing Protocol

The attached report was generated using an extractive FTIR system using methodologies as
required by and in accordance with EPA 40 CFR 60(A) Methods 1-3, EPA 40 CFR 60,
Subpart JJJJ, as well as ASTM D6348-03 as outlined in the submitted Source Test Protocol
dated September 20, 2023.

Quality Assurance

Oasis has performed a full review of the raw data and calculated results in this report. Any
errors we have encountered have been listed in the body of this report. After performing the
review, we are confident that this engine has met all requirements.

If you have any questions or require further information, please contact the undersigned at
[phone].

Yours truly,
Oasis Emission Consultants, Inc.

_________________________ _______________________
Charles A. Chapman Cember Crawley
Manager of Technical Services Environmental Scientist

_________________________

Christopher N. Knott, P.Eng.
Director, Engineering and Operations

SOURCE EMISSION TEST REPORT

UDEQ Permit DAQE-AN147880007-23

Federal Regulation: EPA 40 CFR 60, Subpart JJJJ

Test Performed By: Oasis Emission Consultants, Inc.

Test Company Contact: Chris Knott
2730 Commercial Way
Rock Springs, WY 82901
307.382.3297

Owner/Operator: Dominion Energy Wexpro

Owner/Operator Contact: R. Sean Warden
120 Tredegar Street
Clearinghouse Building, 3rd Floor
Richmond, VA 23219
804.389.2730

Facility Name: Clay Basin Compressor Station
UTM Coordinates: 650,270 m Easting, 4,539,450 m
Northing, UTM Zone 12
Daggett County, Utah

Emission Source: Waukesha L7042GSI
ICE-1

Date of Test: November 9, 2023

Date of Report: November 17, 2023

TABLE OF CONTENTS

1.1 Introduction .......................................................................................................................... 1
2.1 Stack Sampling Location ..................................................................................................... 2
3.1 Discussion of NOx, CO and VOC Test Results ................................................................... 4
3.1.1 Source Test 1 ............................................................................................................................................ 4
3.1.2 Source Test 2 ............................................................................................................................................ 4
3.1.3 Source Test 3 ............................................................................................................................................ 4
4.1 Stack Sampling Methods and Procedures ............................................................................ 5
4.2 Equipment Utilization .......................................................................................................... 6
4.3 Measurement of VOC (NMNEHC C3) ............................................................................... 7
4.4 Process Parameters............................................................................................................... 7
5.1 Quality Assurance ................................................................................................................ 8

List of Tables and Figures

Figure 1 - Sample Port Location ............................................................................................................................. 2
Figure 2 - Sampling Train Schematic – Method 320 .............................................................................................. 6

Table 1 – Insertion Depths of Traverse Points for Stratification Te st .................................................................... 2
Table 2 - Location of Traverse Points in Circular Stacks…………………………………………………………3
Table 3 - Test Matric………………………………………………………………………………………………5
Table 4 - Concentrations and Interference………………………………………………………………………...6

APPENDIX A: NOx, CO and VOC Test Data

APPENDIX B: Quality Assurance/Calibration Data

APPENDIX C: Load Approximation

APPENDIX D: Example Calculations and Summary

APPENDIX E: Field Notes and Source Test Certification

1

1.1 Introduction

An air emissions test program was conducted on a Waukesha L7042GSI (ICE-1) engine,
operated by Dominion Energy Wexpro, located at the Clay Basin Compressor Station in
Daggett County, Utah. The purpose of the testing was to demonstrate ongoing compliance
with the emissions limits contained in UDEQ Permit DAQE-AN147880007-23 and EPA 40
CFR 60, Subpart JJJJ, for oxides of nitrogen (NOx), carbon monoxide (CO) and volatile
organic compounds (VOC) defined as non-methane, non-ethane hydrocarbons, reported as
propane (NMNEHC C3).

Dominion Energy Wexpro operates the Clay Basin Compressor Station located remotely in
Daggett County, Utah. The natural gas compressor station includes a natural gas fueled
compressor that is powered by a Waukesha L7042GSI. The facility is located in the NWSW
of Section 16, Township 3N, Range 24E, in Daggett County, Utah. UTM Coordinates:
650,270 m Easting, 4,539,450 m Northing, UTM Zone 12.

The periodic test was conducted on the 1,480 hp Waukesha L7042GSI compressor engine
(Unit ID: ICE-1; Serial Number: WAU-1654195).

Three one hour test runs were performed on November 9, 2023 to analyze NOx, CO and VOC
emission levels. Test runs were performed according to methodologies outlined by EPA 40
CFR 60(A) Methods 1-3, EPA 40 CFR 60, Subpart JJJJ, as well as ASTM D6348-03, as
outlined in the submitted Source Test Protocol dated September 20, 2023. Each one hour test
run consisted of 60 readings taken at one minute intervals.

Process parameters were recorded during each test run in order to determine the load.
Parameters include the engine panel load percentage.

The following key personnel were present during testing:

Oasis Emission Consultants, Inc. - [phone]
TJ Schmidtberger - Compliance Specialist

Dominion Energy Wexpro - [phone]
JJ – Field Personal
Aurelio Godina-Villegas – Field Personal

2

2.1 Stack Sampling Location

Testing was conducted on the Waukesha L7042GSI engine. The sampling port for moisture,
NOx, CO and VOC measurements was approximately 2.3 pipe diameters (36”) downstream
from the nearest flow disturbance (Distance B) and 1.9 pipe diameters (30”) upstream from
the nearest disturbance (Distance A), as seen in Figure 1. The stack sampling location was
placed at approximately 50% insertion depth based on an O2 stratification check which
demonstrated a non-stratified flow regime. The stratification was conducted according to
EPA 40 CFR 75(A), §6.5.6.1 using 3 traverse points determined according to Table 1 below.
In accordance with EPA 40 CFR 60(A), Method 1, a total of 16 traverse insertion depths
were determined according to Table 2 below in order to conduct Method 2.

Figure 1 - Sample Port Location

Table 1 – Insertion Depths of Traverse Points for Stratification Test

Traverse Point Insertion Depth (Percent of Stack Diameter)
1 16.7
2 50.0
3 83.3

16"
A
B
3

Table 2 – Location of Traverse Points in Circular Stacks

4

3.1 Discussion of NOx, CO and VOC Test Results

Three, one hour test runs were performed on November 9, 2023 to analyze exhaust NOx, CO
and VOC (NMNEHC C3) emission levels to demonstrate ongoing compliance with the
emissions limits. Testing for NOx, CO and VOC were run concurrently with one another.
Each test was performed at the maximum achievable load. Measured emissions were below
permitted limits. Please refer to the Appendices for a listing of all raw data, calibration error
response and calculations performed per EPA 40 CFR 60(A) requirements.

3.1.1 Source Test 1: Waukesha L7042GSI, NOx, CO and VOC

The first test was performed from 11:05 to 12:04 for NOx, CO and VOC.

Based on operating parameters recorded during testing, the load was approximated at
873.2 bhp, and the average NOx and CO levels were found to be 0.3 g/bhp-hr and
0.2 g/bhp-hr respectively, below limitations. The VOC level tested at 0.0 g/bhp-hr,
which tested in compliance.

3.1.2 Source Test 2: Waukesha L7042GSI, NOx, CO and VOC

The second test was performed from 12:06 to 13:05 for NOx, CO and VOC.

Based on operating parameters recorded during testing, the load was approximated at
873.2 bhp, and the average NOx and CO levels were found to be 0.3 g/bhp-hr and
0.2 g/bhp-hr respectively, below limitations. The VOC level tested at 0.0 g/bhp-hr,
which tested in compliance.

3.1.3 Source Test 3: Waukesha L7042GSI, NOx, CO and VOC

The third test was performed from 13:07 to 14:06 for NOx, CO and VOC.

Based on operating parameters recorded during testing, the load was approximated at
873.2 bhp, and the average NOx and CO levels were found to be 0.4 g/bhp-hr and
0.2 g/bhp-hr respectively, below limitations. The VOC level tested at 0.0 g/bhp-hr,
which tested in compliance.

Test
Run
NOx
(ppmvd)
NOx
(g/bhp-hr)
CO
(ppmvd)
CO
(g/bhp-hr)
VOC
(ppmvd)
VOC
(g/bhp-hr)
O2
(%)
1 64.28 0.3 49.97 0.2 4.38 0.0 0.0
Test
Run
NOx
(ppmvd)
NOx
(g/bhp-hr)
CO
(ppmvd)
CO
(g/bhp-hr)
VOC
(ppmvd)
VOC
(g/bhp-hr)
O2
(%)
2 63.00 0.3 49.85 0.2 4.60 0.0 0.0
Test
Run
NOx
(ppmvd)
NOx
(g/bhp-hr)
CO
(ppmvd)
CO
(g/bhp-hr)
VOC
(ppmvd)
VOC
(g/bhp-hr)
O2
(%)
3 66.31 0.4 49.54 0.2 4.48 0.0 0.0
5

4.1 Stack Sampling Methods and Procedures

Testing followed EPA 40 CFR 60(A) Methods 1-3 & ASTM D6348-03, methodologies per
our standard protocol, with no exceptions.

Table 3 - Test Matrix

Method Title Parameter Reference
EPA 40 CFR 60
Appendix A, Method
1
Sample and Velocity
Traverses for
Stationary Sources
Sampling Point
Determination
https://www.epa.gov/s
ites/production/files/2
017-
08/documents/method
_1_3.pdf
EPA 40 CFR 60
Appendix A, Method
2
Determination of
Stack Gas Velocity
and Volumetric
Flow Rate
Exhaust Effluent
Flow
https://www.epa.gov/s
ites/production/files/2
017-
08/documents/method
_2.pdf
EPA 40 CFR 60
Appendix A, Method
3
Determination of
oxygen and carbon
dioxide concentration
in emissions from
stationary sources
O2, Dry
Volumetric Flow
Rate
https://www.epa.gov/s
ites/default/files/2017
-
08/documents/method
_3a.pdf
ASTM D 6348-03 Determination of
Gaseous Compounds
by Extractive Direct
Interface Fourier
Transform Infrared
(FTIR) Spectroscopy
Nitrogen Oxides,
Carbon
Monoxide, Non-
Methane Non-
Ethane
Hydrocarbons on
a Propane Basis
https://www.astm.org/
Standards/D6348.htm
U.S. Environmental Protection Agency. “EMC Promulgated Test Methods.” Air Emission
Measurement Center (EMC). 31 August 2023. Web. 16 November 2023. <https://www.epa.gov/emc/
emc-promulgated-test-methods>.
U.S. Environmental Protection Agency. “Subpart JJJJ–Standards of Performance for
Stationary Spark Ignition Internal Combustion Engines.” Code of Federal Regulations. Title 40.
Chapter 1. Subchapter C. Part 60. Subpart JJJJ. 73 FR 3591, Jan. 18, 2008. Washington: GPO.
30 June 2023. Web. 5 July 2023. <https://ecfr.federalregister.gov/current/title -40/chapter-I/
subchapter-C/part-60/subpart-JJJJ>.

6

4.2 Equipment Utilization

The following equipment was used during the tests performed at this facility in conjunction
with procedures outlined by EPA 40 CFR 60(A) Methods 1-3, EPA 40 CFR 60, Subpart JJJJ,
as well as ASTM D6348-03.

• (1) MKS MultiGas 2030 FTIR Continuous Gas Analyzer (0.210 L/min sample flow, 0.014
atmosphere sample pressure, 1 atmosphere cell pressure, 191°C cell temperature)
• (1) Laptop Computer for the FTIR Analyzer using MKS MG2000 Software
• (1) 75ft or 100ft Heated Teflon Line w/ Heated Sample Probe and Spike Bypass Line
• S-Type Pitot Tube c/w 20 ft. Heated Sample Line (Coefficient 0.84)
• (1) Fyrite O2/CO2 analyzer
• (5) EPA Protocol G1 Calibration Gas (NOx, CO, C3H8, C2H4 and NO2)

The MKS Multigas 2030 FTIR Analyzer operated with a spectral resolution of 0.5 cm-1 and a
scan time of 30 seconds. The FTIR spectrometer utilizes a multi-pass gas cell with a 5.11
meter effective pathlength.

Figure 2 - Sampling Train Schematic – Method 320

Table 4 - Concentrations and
Interference

7

The MKS 2030 software provides a Natural Gas Method that is designed to minimize all
expected interferences by removing the regions in the quant region where they are most
absorbed (i.e. picket fence approach). So, for example, all the water peaks that are greater
than about 0.1 abs are removed from the quant region. Since the spectral noise measured
(sample spectrum) is in the range of 0.001 absorbance, it is desirable to have any error within
this range. The MKS software will match the water calibration spectrum to the sample
spectrum at any 1 point in the spectrum to about 1% precision. So, 1% of 0.1 absorbance is
0.001 abs. This is why any peaks greater than this for interfering compounds are usually
excluded so they do not interfere. To summarize, the MKS software and the method are
designed to minimize any interferences by removing their largest interfering absorptions.

4.3 Measurement of VOC (NMNEHC C3)

The algorithm currently used for NMNEHC C3 and developed for natural gas fired
applications by Dr. Spartz and MKS instruments in accordance with EPA standards, is the
following:

(2.4*c8/(1+exp((2-c8)/0.2))+1.9*c11/(1+exp((2-c11)/0.2))+6*c12/(1+exp((0.5-c12)
/0.2))+2.85*c13/(1+exp((2-c13)/0.2))+3*c14/(1+exp((1-c14)/0.2)))/3

c8= acetylene
c11= ethylene
c12= hexane
c13= propylene
c14= propane

Note: The constants in front of each of the compounds listed represents the FID response
factor when calibrated with Propane.

As with any CEMS analyzer, the FTIR may demonstrate a negative zero bias. The “exp”
functions listed in the algorithm above are intended to mathematically filter out any negative
biases and set them to approach zero.

4.4 Process Parameters

Process parameters were recorded during each test run in order to determine the load.
Parameters include the engine panel load percentage. Results are provided in Appendix C.

8

5.1 Quality Assurance

The MKS Multigas 2030 FTIR Analyzer was used to measure NOx, CO and VOC on a dry
basis. A pre Direct and System calibration measurement was made on compounds of NOx,
CO, C3H8 and C2H4. In addition, post System calibrations were made on compounds of NOx,
CO, C3H8 and C2H4. Compounds of CO2 and NO2 were measured for the quality assurance
spiking requirements of Method 320. Levels for calibrations and zeroes must be within +/-
5% of the certified calibration gas or response to zero gas, respectively.

CTS procedures were followed according to EPA requirements for both pre and post testing.
Similarly, QA spiking procedures were followed. Analysis of the CO2 exhaust effluent was
used to determine the dilution factor. Steady levels of the CO2 were observed and a sufficient
duration of time was allowed to elapse for a representative average.

The calibration gas was spiked into the effluent stream using a bypass line at approximately
10% of the sampling rate. The dilution factor was obtained from observation of the stack CO2
behavior using the following equation:

CO2AVG – CO2SPIKE
DF = ------------------------
CO2 AVG

Where: CO2AVG = The average undiluted CO2 stack gas concentration of spike measurements
CO2SPIKE = The average diluted CO2 stack gas concentration when spiked

The sample recovery was then obtained from the following equation:

% REC = (Spike MEAS – Stack MEAS)* (1 – DF)
---------------------------------------------------------
CS * DF

Where: Spike MEAS = The average diluted stack gas concentration when spiked
Stack MEAS = The average undiluted stack gas concentration
DF = Dilution factor
CS = Certified concentration of calibration standards

The Sample Recovery average level for C3H8 was found to be 104.6%, which was within the
allowable tolerance of Method 320 (70% to 130%). A summary of all spiking
procedures/results can be found in Appendix B.

APPENDIX A
NOx and CO Test Data

NO Dry
(ppm)
NO2 Dry
(ppm)
NOx Dry
(ppm)
CO Dry
(ppm)
NMNEHC C3 Dry
(ppm)
H2O% (High)
191C
Time O2
(%)
Time
1 57.487977 0.195625 57.683602 52.043992 5.528688 18.244859 11:05:28 0.00 11:05:05 11/9/2023
2 60.625444 0.732263 61.357707 50.656686 4.849705 17.200306 11:06:28 0.00 11:06:05 11/9/2023
3 53.988163 0.982565 54.970728 53.313015 4.211641 18.566833 11:07:28 0.00 11:07:05 11/9/2023
4 61.239807 1.033543 62.27335 52.117449 4.237100 18.574241 11:08:28 0.00 11:08:05 11/9/2023
5 67.457888 0.78237 68.240258 49.845155 4.136496 18.611074 11:09:28 0.00 11:09:05 11/9/2023
6 62.194377 1.005702 63.200079 49.821801 4.626282 18.048358 11:10:29 0.00 11:10:05 11/9/2023
7 65.9683 0.587647 66.555947 50.126404 4.430746 21.627032 11:11:29 0.00 11:11:05 11/9/2023
8 61.806708 0.8769 62.683608 49.543978 4.402097 18.931672 11:12:29 0.00 11:12:05 11/9/2023
9 61.148785 0.799604 61.948389 49.734194 3.996586 15.793227 11:13:29 0.00 11:13:05 11/9/2023
10 60.088821 0.990998 61.079819 49.779355 4.457770 17.521537 11:14:29 0.00 11:14:05 11/9/2023
11 66.195731 1.495173 67.690904 48.816046 4.312455 21.567529 11:15:29 0.00 11:15:05 11/9/2023
12 64.674365 1.342224 66.016589 48.544902 4.266061 21.964202 11:16:30 0.00 11:16:05 11/9/2023
13 59.8718 1.137167 61.008967 48.908642 4.563069 19.21026 11:17:30 0.00 11:17:05 11/9/2023
14 62.45432 0.814293 63.268613 48.833014 4.069570 16.547176 11:18:30 0.00 11:18:05 11/9/2023
15 67.413258 0.953434 68.366692 47.670817 4.380199 20.363926 11:19:30 0.00 11:19:05 11/9/2023
16 57.305044 1.192999 58.498043 49.210056 4.271441 18.619418 11:20:30 0.00 11:20:05 11/9/2023
17 62.373389 0.814649 63.188038 50.098777 4.140649 16.241485 11:21:30 0.00 11:21:05 11/9/2023
18 70.151397 0.824164 70.975561 48.769511 4.302694 18.771426 11:22:31 0.00 11:22:05 11/9/2023
19 72.186304 0.822988 73.009292 48.55071 4.402779 18.617201 11:23:31 0.00 11:23:05 11/9/2023
20 69.692888 0.764159 70.457047 48.374068 4.615400 16.944847 11:24:31 0.00 11:24:05 11/9/2023
21 66.262838 0.813418 67.076256 49.043095 4.443293 19.995478 11:25:31 0.00 11:25:05 11/9/2023
22 55.304136 1.093645 56.397781 50.269289 5.028946 17.895143 11:26:31 0.00 11:26:05 11/9/2023
23 60.397547 0.805403 61.20295 53.031775 3.842282 16.483009 11:27:31 0.00 11:27:05 11/9/2023
24 64.669681 1.662328 66.332009 50.171804 1.971433 23.649753 11:28:31 0.00 11:28:05 11/9/2023
25 68.934921 0.963829 69.89875 49.695808 4.666748 19.634843 11:29:32 0.00 11:29:05 11/9/2023
26 64.50966 0.893837 65.403497 50.061096 4.724914 17.043717 11:30:32 0.00 11:30:05 11/9/2023
27 68.460098 0.679223 69.139321 48.599246 3.848346 15.429945 11:31:32 0.00 11:31:05 11/9/2023
28 62.375988 1.052805 63.428793 50.548374 4.031593 18.802353 11:32:32 0.00 11:32:05 11/9/2023
29 68.559725 1.098704 69.658429 49.831456 4.607799 17.725887 11:33:32 0.00 11:33:05 11/9/2023
30 72.437627 0.909666 73.347293 48.032617 4.362677 19.128988 11:34:32 0.00 11:34:05 11/9/2023
31 63.313198 0.782395 64.095593 49.38101 4.600885 16.409039 11:35:33 0.00 11:35:05 11/9/2023
32 61.630323 0.989882 62.620205 51.499501 4.333839 18.889322 11:36:33 0.00 11:36:05 11/9/2023
33 68.827152 0.791911 69.619063 49.300249 3.576231 15.479293 11:37:33 0.00 11:37:05 11/9/2023
34 69.863972 0.881723 70.745695 49.768541 4.199529 16.022594 11:38:33 0.00 11:38:05 11/9/2023
35 59.74815 0.811861 60.560011 49.501506 4.491190 16.778649 11:39:33 0.00 11:39:05 11/9/2023
36 59.169231 1.135642 60.304873 52.315674 4.299204 18.369562 11:40:33 0.00 11:40:05 11/9/2023
37 65.920273 0.051336 65.971609 48.741278 4.215815 22.551691 11:41:34 0.00 11:41:05 11/9/2023
38 56.699162 0.720337 57.419499 53.03418 4.766170 15.243079 11:42:34 0.00 11:42:05 11/9/2023
39 66.962971 0.866632 67.829603 49.498828 4.354213 19.851958 11:43:34 0.00 11:43:05 11/9/2023
40 60.522117 0.998061 61.520178 50.30211 4.405679 17.289885 11:44:34 0.00 11:44:05 11/9/2023
41 73.534691 0.653649 74.18834 48.295826 4.278675 16.810478 11:45:34 0.00 11:45:05 11/9/2023
42 59.960702 0.875605 60.836307 50.646339 4.072275 20.945275 11:46:34 0.00 11:46:05 11/9/2023
43 66.564707 1.072125 67.636832 49.136693 4.801777 20.357291 11:47:35 0.00 11:47:05 11/9/2023
44 58.228598 1.033058 59.261656 49.703163 1.461375 22.429817 11:48:35 0.00 11:48:05 11/9/2023
45 60.266309 1.189574 61.455883 50.720111 4.663422 20.288259 11:49:35 0.00 11:49:05 11/9/2023
46 65.4842 0.925275 66.409475 49.577255 4.695483 20.972659 11:50:35 0.00 11:50:05 11/9/2023
47 63.930233 1.130317 65.06055 49.820822 4.853495 17.678478 11:51:35 0.00 11:51:05 11/9/2023
48 63.385994 0.989986 64.37598 50.068916 4.597829 17.050057 11:52:35 0.00 11:52:05 11/9/2023
49 61.037277 1.184337 62.221614 50.439892 4.477715 19.149715 11:53:36 0.00 11:53:05 11/9/2023
50 64.740807 1.110132 65.850939 50.548361 4.700257 17.489339 11:54:36 0.00 11:54:05 11/9/2023
51 57.283367 1.08325 58.366617 51.752001 5.183753 18.159357 11:55:36 0.00 11:55:05 11/9/2023
52 66.264259 0.646558 66.910817 47.879613 3.673897 22.370986 11:56:36 0.00 11:56:05 11/9/2023
53 62.473552 0.926268 63.39982 51.001461 4.891572 19.110685 11:57:36 0.00 11:57:05 11/9/2023
54 60.954808 0.663066 61.617874 49.618681 4.564486 16.779264 11:58:36 0.00 11:58:05 11/9/2023
55 60.369835 1.283496 61.653331 50.21285 4.694829 19.246352 11:59:37 0.00 11:59:05 11/9/2023
56 58.934553 1.105848 60.040401 51.156455 5.001386 17.891111 12:00:37 0.00 12:00:05 11/9/2023
57 58.425179 0.914442 59.339621 51.051177 4.779095 16.780571 12:01:37 0.00 12:01:05 11/9/2023
58 61.502186 0.902682 62.404868 50.529873 4.594473 17.524446 12:02:37 0.00 12:02:05 11/9/2023
59 64.728011 0.787613 65.515624 49.453037 4.968078 17.711189 12:03:37 0.00 12:03:05 11/9/2023
60 63.997701 1.08433 65.082031 49.166745 4.690077 20.681807 12:04:37 0.00 12:04:05 11/9/2023
AVG 63.35 0.93 64.28 49.97 4.38 18.57 0.00
ppm@15% O2 18.15 14.11 1.24
NOx
(g/bhp-hr)
NOx
(lbs/hr)
CO
(g/bhp-hr)
CO
(lbs/hr)
NMNEHC C3
(g/bhp-hr)
NMNEHC C3
(lbs/hr)
0.3 0.67 0.2 0.32 0.0 0.04
ICE-1
Oxygen MeasurementsFTIR Measurements
Calculated Emission Levels
Dominion Energy Wexpro
Clay Basin Compressor Station
Run 1
Record Date
EPA REFERENCE METHOD 1 EPA REFERENCE METHOD 2
Stack Diameter 16 Inches Kp=85.49 ft/sec Cp=0.84
Traverse Points 16 Port Point Insertion Depth dP Ts Stat P sqrt dP
Ports 2 (inches)(in h2O)(deg R)(in H2O)
EPA REFERENCE METHOD 3 A 1 0.51 0.33 1214 0.12 0.574
Average O2 (Corrected)0.0 (% dry)A 2 1.68 0.35 0.592
Average CO2 12 (% dry)A 3 3.10 0.38 0.616
Average N2 + CO 88.0 (% dry)A 4 5.17 0.41 0.640
Dry Molecular Weight 29.92 lb/lbmol A 5 10.83 0.45 0.671
Wet Molecular Weight 27.71 lb/lbmol A 6 12.90 0.41 0.640
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 7 14.32 0.42 0.648
Barometric Pressure 23.95 in Hg A 8 15.49 0.39 0.624
Moisture Content 18.57 %A 9
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 10
Average Analyzer NOx Level 64.28 ppm A 11
Calculated NOx Mass Output 0.67 lbs/hr A 12
Calculated NOx Output 0.3 g/bhp-hr A 13
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 14
Average Analyzer CO Level 49.97 ppm A 15
Calculated CO Mass Output 0.32 lbs/hr A 16
Calculated CO Output 0.2 g/bhp-hr B 1 0.51 0.36 1214 0.12 0.600
ASTM D6348-03 / EPA REFERENCE METHOD 320 B 2 1.68 0.39 0.624
Average Analyzer NMNEHC Level 4.38 ppm B 3 3.10 0.45 0.671
Calculated NMNEHC Mass Output 0.04 lbs/hr B 4 5.17 0.42 0.648
Calculated NMNEHC Output 0.0 g/bhp-hr B 5 10.83 0.44 0.663
LOAD APPROXIMATION B 6 12.90 0.41 0.640
Estimated Engine Load 873.2 BHP B 7 14.32 0.38 0.616
B 8 15.49 0.36 0.600
B 9
B 10
B 11
B 12
B 13
B 14
B 15
B 16
Averages 0.4 1214 0.1 0.629
Average Stack Gas Velocity 61.12 ft/sec
Average Dry Flowrate 1452.18 dscfm
TEST RUN # 1
NO Dry
(ppm)
NO2 Dry
(ppm)
NOx Dry
(ppm)
CO Dry
(ppm)
NMNEHC C3 Dry
(ppm)
H2O% (High)
191C
Time O2
(%)
Time
1 63.537676 1.198817 64.736493 50.372604 5.188029 19.746773 12:06:38 0.00 12:06:05 11/9/2023
2 63.184901 1.014698 64.199599 49.492001 4.418613 18.780406 12:07:38 0.00 12:07:05 11/9/2023
3 63.781332 1.117826 64.899158 51.031675 4.393164 18.244385 12:08:38 0.00 12:08:05 11/9/2023
4 62.575859 1.183003 63.758862 50.312931 4.350492 18.596977 12:09:38 0.00 12:09:05 11/9/2023
5 61.083027 1.373019 62.456046 49.541797 4.516349 18.901118 12:10:38 0.00 12:10:05 11/9/2023
6 55.98778 1.438381 57.426161 50.272495 4.887391 19.743574 12:11:39 0.00 12:11:05 11/9/2023
7 62.95012 1.336221 64.286341 49.684401 4.901701 22.378864 12:12:39 0.00 12:12:05 11/9/2023
8 63.901856 1.256582 65.158438 49.692709 4.514471 18.699189 12:13:39 0.00 12:13:05 11/9/2023
9 62.659549 1.262926 63.922475 51.590627 4.461610 18.680667 12:14:39 0.00 12:14:05 11/9/2023
10 64.002628 1.218333 65.220961 50.628536 4.192070 18.44223 12:15:39 0.00 12:15:05 11/9/2023
11 59.539637 0.900352 60.439989 49.614976 1.416425 22.958688 12:16:39 0.00 12:16:05 11/9/2023
12 55.766875 1.053641 56.820516 51.42287 5.051702 17.74451 12:17:40 0.00 12:17:05 11/9/2023
13 59.568719 0.77933 60.348049 50.361882 4.364626 15.466857 12:18:40 0.00 12:18:05 11/9/2023
14 55.276717 0.858222 56.134939 51.496782 4.427583 16.246056 12:19:40 0.00 12:19:05 11/9/2023
15 61.262142 1.107522 62.369664 50.050545 4.776022 18.772551 12:20:40 0.00 12:20:05 11/9/2023
16 61.787095 0.980388 62.767483 49.680745 4.792505 17.084271 12:21:40 0.00 12:21:05 11/9/2023
17 56.814976 1.182966 57.997942 52.482823 4.863187 18.278594 12:22:40 0.00 12:22:05 11/9/2023
18 63.988857 1.499364 65.488221 51.042463 1.938854 22.734189 12:23:41 0.00 12:23:05 11/9/2023
19 63.070165 1.39817 64.468335 49.34287 4.948283 20.624672 12:24:41 0.00 12:24:05 11/9/2023
20 63.452338 0.791549 64.243887 48.812065 4.463125 19.227673 12:25:41 0.00 12:25:05 11/9/2023
21 64.629211 1.080471 65.709682 49.594414 4.570625 18.735813 12:26:41 0.00 12:26:05 11/9/2023
22 64.828438 0.992534 65.820972 49.756693 4.881758 17.047397 12:27:41 0.00 12:27:05 11/9/2023
23 51.37204 0.90593 52.27797 50.620109 4.248627 18.595694 12:28:41 0.00 12:28:05 11/9/2023
24 65.429836 1.140056 66.569892 50.21709 4.355783 17.994464 12:29:42 0.00 12:29:05 11/9/2023
25 71.880796 1.212357 73.093153 49.34462 4.796741 22.388796 12:30:42 0.00 12:30:05 11/9/2023
26 68.385386 1.27608 69.661466 48.742299 5.022209 19.31234 12:31:42 0.00 12:31:05 11/9/2023
27 64.464636 1.250495 65.715131 49.976815 4.449718 18.624091 12:32:42 0.00 12:32:05 11/9/2023
28 58.85094 1.553685 60.404625 50.107517 4.847662 21.931902 12:33:42 0.00 12:33:05 11/9/2023
29 58.564929 1.489938 60.054867 51.427544 5.208219 19.851182 12:34:42 0.00 12:34:05 11/9/2023
30 56.053185 1.360071 57.413256 51.952674 4.966549 19.782059 12:35:43 0.00 12:35:05 11/9/2023
31 57.359499 1.468877 58.828376 52.215913 5.002200 20.274227 12:36:43 0.00 12:36:05 11/9/2023
32 53.839902 1.355858 55.19576 52.648178 5.032900 20.337442 12:37:43 0.00 12:37:05 11/9/2023
33 61.137612 1.385062 62.522674 50.207877 4.851008 20.028987 12:38:43 0.00 12:38:05 11/9/2023
34 64.575807 1.302984 65.878791 48.489085 4.737591 19.573102 12:39:43 0.00 12:39:05 11/9/2023
35 61.196187 1.35345 62.549637 48.233982 4.866373 19.302997 12:40:43 0.00 12:40:05 11/9/2023
36 53.752377 1.302472 55.054849 49.745607 4.682056 21.693426 12:41:44 0.00 12:41:05 11/9/2023
37 55.707032 1.251909 56.958941 49.973875 5.020494 18.772873 12:42:44 0.00 12:42:05 11/9/2023
38 73.286566 1.091845 74.378411 47.544777 4.933401 17.679913 12:43:44 0.00 12:43:05 11/9/2023
39 68.311585 1.241223 69.552808 47.596062 4.013192 18.230688 12:44:44 0.00 12:44:05 11/9/2023
40 60.181988 1.183835 61.365823 48.872387 4.986342 18.041183 12:45:44 0.00 12:45:05 11/9/2023
41 69.293287 1.029216 70.322503 47.423309 4.922702 20.847663 12:46:44 0.00 12:46:05 11/9/2023
42 63.566807 1.298286 64.865093 47.264267 4.825708 19.182271 12:47:45 0.00 12:47:05 11/9/2023
43 55.776981 0.998653 56.775634 48.006911 4.614698 19.772712 12:48:45 0.00 12:48:05 11/9/2023
44 63.91285 1.517749 65.430599 48.468086 5.039865 21.411278 12:49:45 0.00 12:49:05 11/9/2023
45 59.212939 1.331515 60.544454 48.623787 4.573534 18.568964 12:50:45 0.00 12:50:05 11/9/2023
46 56.277132 1.181382 57.458514 51.093254 4.415480 18.071595 12:51:45 0.00 12:51:05 11/9/2023
47 60.847843 1.149552 61.997395 49.660685 4.945950 17.820129 12:52:45 0.00 12:52:05 11/9/2023
48 59.427294 1.100561 60.527855 49.987161 4.769234 17.658648 12:53:45 0.00 12:53:05 11/9/2023
49 62.690146 0.861717 63.551863 50.985962 4.625394 16.563911 12:54:46 0.00 12:54:05 11/9/2023
50 61.406102 0.801546 62.207648 50.138177 4.276529 18.357846 12:55:46 0.00 12:55:05 11/9/2023
51 64.258934 1.004508 65.263442 49.725034 4.806915 16.919521 12:56:46 0.00 12:56:05 11/9/2023
52 62.249191 0.519422 62.768613 48.72725 4.431600 21.910545 12:57:46 0.00 12:57:05 11/9/2023
53 56.352806 1.561359 57.914165 50.633335 4.738285 21.648105 12:58:46 0.00 12:58:05 11/9/2023
54 68.246083 1.660812 69.906895 51.149648 5.240073 21.565762 12:59:47 0.00 12:59:05 11/9/2023
55 72.883153 1.118954 74.002107 47.7475 4.427351 18.111683 13:00:47 0.00 13:00:05 11/9/2023
56 69.946777 1.059026 71.005803 48.295124 4.142445 18.006273 13:01:47 0.00 13:01:05 11/9/2023
57 65.276768 1.516542 66.79331 48.779742 4.880075 21.292307 13:02:47 0.00 13:02:05 11/9/2023
58 57.069895 1.409252 58.479147 49.95091 4.832030 19.579937 13:03:47 0.00 13:03:05 11/9/2023
59 61.044518 1.257632 62.30215 51.201092 4.298003 18.377349 13:04:47 0.00 13:04:05 11/9/2023
60 60.536925 1.27355 61.810475 48.776295 4.805928 20.918267 13:05:47 0.00 13:05:05 11/9/2023
AVG 61.80 1.20 63.00 49.85 4.60 19.27 0.00
ppm@15% O2 17.79 14.07 1.30
NOx
(g/bhp-hr)
NOx
(lbs/hr)
CO
(g/bhp-hr)
CO
(lbs/hr)
NMNEHC C3
(g/bhp-hr)
NMNEHC C3
(lbs/hr)
0.3 0.64 0.2 0.31 0.0 0.04
Calculated Emission Levels
Record Date
Dominion Energy Wexpro
Clay Basin Compressor Station
Run 2
ICE-1
Oxygen MeasurementsFTIR Measurements
EPA REFERENCE METHOD 1 EPA REFERENCE METHOD 2
Stack Diameter 16 Inches Kp=85.49 ft/sec Cp=0.84
Traverse Points 16 Port Point Insertion Depth dP Ts Stat P sqrt dP
Ports 2 (inches)(in h2O)(deg R)(in H2O)
EPA REFERENCE METHOD 3 A 1 0.51 0.32 1212 0.11 0.566
Average O2 (Corrected)0.0 (% dry)A 2 1.68 0.36 0.600
Average CO2 12 (% dry)A 3 3.10 0.39 0.624
Average N2 + CO 88.0 (% dry)A 4 5.17 0.41 0.640
Dry Molecular Weight 29.92 lb/lbmol A 5 10.83 0.44 0.663
Wet Molecular Weight 27.62 lb/lbmol A 6 12.90 0.38 0.616
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 7 14.32 0.35 0.592
Barometric Pressure 23.94 in Hg A 8 15.49 0.35 0.592
Moisture Content 19.27 %A 9
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 10
Average Analyzer NOx Level 63.00 ppm A 11
Calculated NOx Mass Output 0.64 lbs/hr A 12
Calculated NOx Output 0.3 g/bhp-hr A 13
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 14
Average Analyzer CO Level 49.85 ppm A 15
Calculated CO Mass Output 0.31 lbs/hr A 16
Calculated CO Output 0.2 g/bhp-hr B 1 0.51 0.35 1212 0.11 0.592
ASTM D6348-03 / EPA REFERENCE METHOD 320 B 2 1.68 0.38 0.616
Average Analyzer NMNEHC Level 4.60 ppm B 3 3.10 0.41 0.640
Calculated NMNEHC Mass Output 0.04 lbs/hr B 4 5.17 0.44 0.663
Calculated NMNEHC Output 0.0 g/bhp-hr B 5 10.83 0.45 0.671
LOAD APPROXIMATION B 6 12.90 0.42 0.648
Estimated Engine Load 873.2 BHP B 7 14.32 0.38 0.616
B 8 15.49 0.35 0.592
B 9
B 10
B 11
B 12
B 13
B 14
B 15
B 16
Averages 0.4 1212 0.1 0.621
Average Stack Gas Velocity 60.34 ft/sec
Average Dry Flowrate 1422.97 dscfm
TEST RUN # 2
NO Dry
(ppm)
NO2 Dry
(ppm)
NOx Dry
(ppm)
CO Dry
(ppm)
NMNEHC C3 Dry
(ppm)
H2O% (High)
191C
Time O2
(%)
Time
1 61.688076 1.089513 62.777589 50.854755 4.854231 17.234754 13:07:48 0.00 13:07:05 11/9/2023
2 65.639756 0.828502 66.468258 49.900253 4.305254 16.290167 13:08:48 0.00 13:08:05 11/9/2023
3 57.932409 1.108524 59.040933 49.663406 4.462196 18.349269 13:09:48 0.00 13:09:05 11/9/2023
4 56.348293 1.099348 57.447641 50.612802 4.851451 18.971519 13:10:48 0.00 13:10:05 11/9/2023
5 55.548452 1.014186 56.562638 50.465111 4.683419 17.112487 13:11:48 0.00 13:11:05 11/9/2023
6 67.670696 0.915172 68.585868 50.465395 4.520332 16.354269 13:12:49 0.00 13:12:05 11/9/2023
7 68.28083 0.724406 69.005236 49.175663 4.089319 20.029919 13:13:49 0.00 13:13:05 11/9/2023
8 65.526554 1.069427 66.595981 50.304363 5.132733 17.916378 13:14:49 0.00 13:14:05 11/9/2023
9 71.401386 0.745435 72.146821 49.673414 4.004041 16.17091 13:15:49 0.00 13:15:05 11/9/2023
10 71.322838 0.816332 72.13917 48.118498 4.699328 20.005677 13:16:49 0.00 13:16:05 11/9/2023
11 68.963348 0.713298 69.676646 48.40231 4.294385 19.686386 13:17:49 0.00 13:17:05 11/9/2023
12 64.075464 1.076604 65.152068 49.537168 4.877468 17.758966 13:18:50 0.00 13:18:05 11/9/2023
13 55.173894 1.30649 56.480384 52.128152 4.518993 18.890353 13:19:50 0.00 13:19:05 11/9/2023
14 63.979753 1.164946 65.144699 49.348815 4.417028 18.470007 13:20:50 0.00 13:20:05 11/9/2023
15 75.571584 0.863843 76.435427 47.35337 4.827097 17.566257 13:21:50 0.00 13:21:05 11/9/2023
16 69.247314 0.68128 69.928594 48.624697 4.423384 16.08738 13:22:50 0.00 13:22:05 11/9/2023
17 69.175331 1.06428 70.239611 48.288713 4.689961 21.27336 13:23:50 0.00 13:23:05 11/9/2023
18 73.060771 1.194136 74.254907 48.456282 4.529605 20.519072 13:24:50 0.00 13:24:05 11/9/2023
19 66.776223 0.641646 67.417869 47.797863 4.432042 19.614061 13:25:51 0.00 13:25:05 11/9/2023
20 64.311994 1.001773 65.313767 48.35167 4.464783 18.920115 13:26:51 0.00 13:26:05 11/9/2023
21 61.605834 0.859905 62.465739 49.620295 4.656638 16.273376 13:27:51 0.00 13:27:05 11/9/2023
22 52.669306 1.012492 53.681798 50.711216 4.353432 18.345033 13:28:51 0.00 13:28:05 11/9/2023
23 60.753266 1.127642 61.880908 50.221993 4.276645 18.1689 13:29:51 0.00 13:29:05 11/9/2023
24 57.113285 1.503294 58.616579 51.220146 2.289179 21.973687 13:30:51 0.00 13:30:05 11/9/2023
25 68.331278 1.260856 69.592134 49.13098 4.730515 19.227775 13:31:52 0.00 13:31:05 11/9/2023
26 60.058315 1.150189 61.208504 49.987797 5.002320 19.620069 13:32:52 0.00 13:32:05 11/9/2023
27 63.310764 0.74589 64.056654 50.215023 4.393285 16.249157 13:33:52 0.00 13:33:05 11/9/2023
28 70.137751 1.053405 71.191156 51.827674 5.036500 22.42889 13:34:52 0.00 13:34:05 11/9/2023
29 68.534034 0.964168 69.498202 48.709422 4.916442 19.738465 13:35:52 0.00 13:35:05 11/9/2023
30 66.261114 1.248842 67.509956 48.431158 4.725438 19.3893 13:36:52 0.00 13:36:05 11/9/2023
31 69.448597 1.103091 70.551688 49.726995 4.179146 18.320499 13:37:53 0.00 13:37:05 11/9/2023
32 68.624792 0.694741 69.319533 48.11128 4.473287 16.381343 13:38:53 0.00 13:38:05 11/9/2023
33 62.626197 0.815871 63.442068 49.671827 4.627776 21.026832 13:39:53 0.00 13:39:05 11/9/2023
34 70.981618 1.06104 72.042658 48.730556 4.978341 21.629639 13:40:53 0.00 13:40:05 11/9/2023
35 60.936497 1.189277 62.125774 49.953348 4.868905 22.298882 13:41:53 0.00 13:41:05 11/9/2023
36 62.931621 1.171469 64.10309 50.257037 4.222378 18.32766 13:42:53 0.00 13:42:05 11/9/2023
37 70.426824 1.362561 71.789385 48.897913 4.685889 19.297518 13:43:54 0.00 13:43:05 11/9/2023
38 63.013163 1.286444 64.299607 49.512294 3.815324 18.472113 13:44:54 0.00 13:44:05 11/9/2023
39 67.912131 1.179498 69.091629 48.50937 4.983556 17.974443 13:45:54 0.00 13:45:05 11/9/2023
40 54.936778 1.108776 56.045554 52.039811 4.845621 17.839078 13:46:54 0.00 13:46:05 11/9/2023
41 73.54278 0.922533 74.465313 48.902316 4.551567 22.900205 13:47:54 0.00 13:47:05 11/9/2023
42 65.941302 1.347166 67.288468 49.223338 4.522848 19.260851 13:48:54 0.00 13:48:05 11/9/2023
43 68.201686 1.000122 69.201808 49.527267 4.536919 16.999677 13:49:54 0.00 13:49:05 11/9/2023
44 64.865687 0.800225 65.665912 49.824022 3.887714 15.537067 13:50:55 0.00 13:50:05 11/9/2023
45 62.496386 0.937589 63.433975 50.965922 4.716986 18.813482 13:51:55 0.00 13:51:05 11/9/2023
46 53.980063 0.98251 54.962573 51.847875 4.901959 22.54584 13:52:55 0.00 13:52:05 11/9/2023
47 69.217447 1.214668 70.432115 49.351706 4.611507 19.379858 13:53:55 0.00 13:53:05 11/9/2023
48 63.524931 1.156748 64.681679 49.711476 4.680293 19.749955 13:54:55 0.00 13:54:05 11/9/2023
49 72.652345 0.855606 73.507951 48.81774 4.549600 16.540129 13:55:55 0.00 13:55:05 11/9/2023
50 73.12354 0.882473 74.006013 47.519521 4.394203 20.341284 13:56:56 0.00 13:56:05 11/9/2023
51 61.787344 1.265827 63.053171 49.184742 4.525242 19.080228 13:57:56 0.00 13:57:05 11/9/2023
52 77.273024 1.299129 78.572153 48.042966 4.628468 21.459195 13:58:56 0.00 13:58:05 11/9/2023
53 61.644621 1.090565 62.735186 49.464424 4.615814 17.429363 13:59:56 0.00 13:59:05 11/9/2023
54 60.111406 1.12054 61.231946 50.506322 4.057333 18.471084 14:00:56 0.00 14:00:05 11/9/2023
55 59.384266 1.424471 60.808737 49.721922 4.730046 19.662596 14:01:56 0.00 14:01:05 11/9/2023
56 71.314915 1.293772 72.608687 51.368705 4.246438 18.307503 14:02:57 0.00 14:02:05 11/9/2023
57 69.676594 1.113541 70.790135 48.071408 1.453710 23.358218 14:03:57 0.00 14:03:05 11/9/2023
58 66.553027 1.52706 68.080087 48.945883 4.704026 19.998712 14:04:57 0.00 14:04:05 11/9/2023
59 64.377995 1.435614 65.813609 49.261481 4.850464 19.807979 14:05:57 0.00 14:05:05 11/9/2023
60 62.726445 1.145412 63.871857 49.240985 4.520201 20.327489 14:06:57 0.00 14:06:05 11/9/2023
AVG 65.25 1.06 66.31 49.54 4.48 19.00 0.00
ppm@15% O2 18.72 13.99 1.26
NOx
(g/bhp-hr)
NOx
(lbs/hr)
CO
(g/bhp-hr)
CO
(lbs/hr)
NMNEHC C3
(g/bhp-hr)
NMNEHC C3
(lbs/hr)
0.4 0.68 0.2 0.31 0.0 0.04
Oxygen MeasurementsFTIR Measurements
ICE-1
Calculated Emission Levels
Dominion Energy Wexpro
Clay Basin Compressor Station
Run 3
Record Date
EPA REFERENCE METHOD 1 EPA REFERENCE METHOD 2
Stack Diameter 16 Inches Kp=85.49 ft/sec Cp=0.84
Traverse Points 16 Port Point Insertion Depth dP Ts Stat P sqrt dP
Ports 2 (inches)(in h2O)(deg R)(in H2O)
EPA REFERENCE METHOD 3 A 1 0.51 0.33 1211 0.11 0.574
Average O2 (Corrected)0.0 (% dry)A 2 1.68 0.36 0.600
Average CO2 12 (% dry)A 3 3.10 0.39 0.624
Average N2 + CO 88.0 (% dry)A 4 5.17 0.42 0.648
Dry Molecular Weight 29.92 lb/lbmol A 5 10.83 0.41 0.640
Wet Molecular Weight 27.65 lb/lbmol A 6 12.90 0.40 0.632
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 7 14.32 0.38 0.616
Barometric Pressure 23.93 in Hg A 8 15.49 0.33 0.574
Moisture Content 19.00 %A 9
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 10
Average Analyzer NOx Level 66.31 ppm A 11
Calculated NOx Mass Output 0.68 lbs/hr A 12
Calculated NOx Output 0.4 g/bhp-hr A 13
ASTM D6348-03 / EPA REFERENCE METHOD 320 A 14
Average Analyzer CO Level 49.54 ppm A 15
Calculated CO Mass Output 0.31 lbs/hr A 16
Calculated CO Output 0.2 g/bhp-hr B 1 0.51 0.35 1212 0.11 0.592
ASTM D6348-03 / EPA REFERENCE METHOD 320 B 2 1.68 0.39 0.624
Average Analyzer NMNEHC Level 4.48 ppm B 3 3.10 0.42 0.648
Calculated NMNEHC Mass Output 0.04 lbs/hr B 4 5.17 0.44 0.663
Calculated NMNEHC Output 0.0 g/bhp-hr B 5 10.83 0.43 0.656
LOAD APPROXIMATION B 6 12.90 0.41 0.640
Estimated Engine Load 873.2 BHP B 7 14.32 0.39 0.624
B 8 15.49 0.34 0.583
B 9
B 10
B 11
B 12
B 13
B 14
B 15
B 16
Averages 0.4 1212 0.1 0.621
Average Stack Gas Velocity 60.36 ft/sec
Average Dry Flowrate 1428.23 dscfm
TEST RUN # 3
APPENDIX B
Quality Assurance/Calibration Data

Date Time NO 191C span NO2 191C span H2O% (high) 191C Formaldehyde 191C Ethylene 191C TE span Propane 191C span Acetaldehyde 191C span CO ppm 191C (1of2) span CO ppm Dry CO2% 191C NOx Wet NOx Dry NM NE HC C3 Temp ( C )Pressure (atm)
11/9/2023 10:09:38 0.199755 -0.152572 -0.001675 -0.038654 0.123919 -0.088178 -0.211863 0.091254 0.091253 -0.001375 0.047183 0.047182 0.041463 191.00296 1.02153
11/9/2023 10:09:46 0.071028 0.034909 -0.002872 -0.010503 0.45748 -0.248683 0.064942 0.057493 0.057491 -0.004823 0.105937 0.105934 -0.005265 190.970154 1.021439
11/9/2023 10:09:53 -0.01075 -0.070406 -0.002583 -0.079871 0.155296 -0.022983 -0.216768 0.022056 0.022055 0.000654 -0.081155 -0.081153 -0.002988 191.016251 1.020673
11/9/2023 10:10:01 0.099717 -0.035522 -0.002321 -0.003146 -0.005754 0.25042 -0.152492 0.065005 0.065004 -0.002351 0.064196 0.064194 0.015864 191.016251 1.020329
11/9/2023 10:10:39 0 0 0 0 0 0 0 0 0 0 0 0 0 191.016251 1.02107
11/9/2023 10:10:52 -0.045463 -0.024627 -0.001979 -0.066261 -0.160721 0.237661 0.172199 0.06332 0.063319 0.006765 -0.070089 -0.070088 -0.000354 191.005844 1.019966
11/9/2023 10:10:59 -0.093382 0.011178 -0.001659 -0.004595 -0.149106 0.342694 0.013812 0.02521 0.02521 0.003828 -0.082204 -0.082202 0.018432 190.99173 1.019626
11/9/2023 10:11:07 0.04205 0.088919 0.001268 -0.031959 -0.229527 0.15613 0.084115 0.102199 0.1022 0.00261 0.130969 0.130971 0.008387 190.948135 1.01866
11/9/2023 10:11:14 0.090719 0.027508 -0.000175 0.00526 -0.508664 0.101039 0.050553 -0.083537 -0.083537 0.012038 0.118228 0.118227 -0.00395 190.939957 1.022817
11/9/2023 10:11:22 0.027304 0.027712 0.000477 -0.032543 -0.236027 0.100543 0.048077 0.141387 0.141388 0.010756 0.055016 0.055016 0.000636 190.974472 1.023602
11/9/2023 10:11:29 -0.097611 0.01191 -0.00077 0.022398 -0.01502 -0.109042 0.090453 0.008258 0.008258 0.005362 -0.085701 -0.0857 -0.003585 191.028961 1.019523
11/9/2023 10:11:37 0.05047 -0.018904 -0.000065 0.027815 -0.081578 0.166905 0.118635 -0.045734 -0.045734 0.007272 0.031566 0.031566 -0.002303 191.028961 1.017303
11/9/2023 10:11:44 0.101633 -0.095216 -0.001057 -0.001675 -0.161821 0.475362 0.274221 0.083903 0.083902 0.001662 0.006416 0.006416 0.026892 191.028961 1.019973
11/9/2023 10:11:52 0.076065 -0.086452 -0.001104 -0.014861 0.034034 -0.28553 0.222125 -0.027289 -0.027289 0.011714 -0.010387 -0.010387 0.009248 191.028961 1.022079
Date Time CO ppm 191C (1of2) span NOx Wet Propane 191C span Temp ( C )Pressure (atm)Date Time Ethylene 191C TE Temp ( C )Pressure (atm)
11/9/2023 10:12:18 490.809721 495.015357 502.941222 191.028961 1.023863 11/9/2023 10:13:48 97.389602 190.965912 1.021021
11/9/2023 10:12:26 498.51221 506.780445 511.520357 191.013077 1.02116 11/9/2023 10:13:56 99.065083 190.965393 1.021594
11/9/2023 10:12:33 498.419102 507.783705 509.739815 190.957214 1.020335 11/9/2023 10:14:03 99.001007 190.965393 1.019368
11/9/2023 10:12:41 498.000748 506.921339 510.307087 190.952667 1.020765 11/9/2023 10:14:11 98.787494 190.965393 1.018926
11/9/2023 10:12:48 498.341487 506.713244 512.282042 190.952667 1.020676 11/9/2023 10:14:19 99.273986 190.965393 1.017501
11/9/2023 10:12:56 498.858057 507.53431 510.764334 191.000351 1.019888 11/9/2023 10:14:26 98.679756 190.965393 1.021729
11/9/2023 10:13:03 502.103508 507.222656 511.963705 191.048035 1.019956 11/9/2023 10:14:34 98.820469 190.965393 1.022807
11/9/2023 10:13:11 502.535371 506.941443 511.988971 191.048035 1.019336 11/9/2023 10:14:41 98.876558 190.965393 1.021216
11/9/2023 10:13:18 502.529827 507.617102 509.519111 191.048035 1.019322 11/9/2023 10:14:49 99.060495 190.965393 1.019795
11/9/2023 10:13:26 503.620443 507.795543 511.035242 191.048035 1.020197 11/9/2023 10:14:56 98.993111 190.965393 1.019213
Date Time NO2 191C span Temp ( C )Pressure (atm)
11/9/2023 10:15:18 131.997607 190.965912 1.023126
11/9/2023 10:15:25 146.754808 191.017151 1.020378
11/9/2023 10:15:33 147.389738 191.041687 1.02028
11/9/2023 10:15:40 148.239318 191.041687 1.020461
11/9/2023 10:15:48 148.565448 191.041687 1.020264
11/9/2023 10:15:55 148.552345 191.041687 1.020748
11/9/2023 10:16:03 148.779211 191.041687 1.020151
11/9/2023 10:16:10 148.927537 191.041687 1.020019
11/9/2023 10:16:18 148.720623 191.041687 1.020042
11/9/2023 10:16:25 149.201044 191.041687 1.019657
Date Time CO ppm 191C (1of2) span NOx Wet Propane 191C span Temp ( C )Pressure (atm)Date Time Ethylene 191C TE Temp ( C )Pressure (atm)
11/9/2023 10:16:45 141.073285 130.705642 38.264465 191.041687 1.024323 11/9/2023 10:18:22 -3.362929 191.041687 1.013466
11/9/2023 10:16:53 3605.717188 131.904624 14.861807 191.041687 1.017961 11/9/2023 10:18:30 10.512013 191.041687 1.029304
11/9/2023 10:17:00 3808.694537 132.285035 5.13172 191.041687 1.018278 11/9/2023 10:18:37 92.463799 191.041687 1.011615
11/9/2023 10:17:08 3741.787759 130.774709 5.578243 191.041687 1.024106 11/9/2023 10:18:45 99.505137 191.041687 1.019629
11/9/2023 10:17:15 720.228946 436.208653 400.765505 191.041687 1.010502 11/9/2023 10:18:52 98.934767 191.041687 1.019867
11/9/2023 10:17:23 499.586843 500.541121 502.622667 191.041687 1.021436 11/9/2023 10:19:00 99.226376 191.041687 1.020425
11/9/2023 10:17:30 499.112814 502.779205 506.304453 191.041687 1.022793 11/9/2023 10:19:07 99.104797 191.041687 1.020687
11/9/2023 10:17:38 500.046994 503.549605 504.4441 191.041687 1.022274 11/9/2023 10:19:15 98.830386 191.041687 1.019936
11/9/2023 10:17:45 501.547827 505.734902 505.862481 191.041687 1.019988 11/9/2023 10:19:22 98.867455 191.041687 1.020033
11/9/2023 10:17:53 502.829038 507.230728 508.90545 191.041687 1.020016 11/9/2023 10:19:30 98.925791 191.041687 1.019798
11/9/2023 10:18:00 501.506089 507.210584 508.635828 191.041687 1.020415
Raw Calibration Data
BACKGROUND / PRE DIRECT ZERO
PRE DIRECT CAL
NO2 CAL
PRE SYSTEM CAL
Date Time CO ppm 191C (1of2) span NOx Wet Propane 191C span Ethylene 191C TE Temp ( C )Pressure (atm)
11/9/2023 10:19:52 0.244586 0.123269 0.508726 0.222052 191.041687 1.020042
11/9/2023 10:20:00 0.27101 0.160383 0.753706 -0.278879 191.041687 1.021577
11/9/2023 10:20:07 0.111703 0.054085 0.07947 -0.153724 191.040771 1.022411
11/9/2023 10:20:15 -0.013497 0.14348 -0.01646 0.018355 190.984467 1.02215
11/9/2023 10:20:22 0.226151 0.071943 0.200172 -0.307854 190.965393 1.021713
11/9/2023 10:20:30 0.101523 0.158669 0.274808 0.137425 190.965393 1.015086
11/9/2023 10:20:37 0.292826 0.028704 0.048038 -0.252348 190.965393 1.014914
11/9/2023 10:20:45 0.045098 0.098217 0.610941 -0.266373 190.965393 1.020613
Date Time CO2% 191C Propane 191C span Temp ( C )Pressure (atm)
11/9/2023 11:00:20 9.895916 2.486228 190.927246 0.959819
11/9/2023 11:00:27 10.104157 2.063769 190.927246 0.963096
11/9/2023 11:00:35 10.172425 1.99149 190.927246 0.960383
11/9/2023 11:00:42 10.285459 1.399186 190.927246 0.959574
11/9/2023 11:00:50 10.291394 1.792486 190.927246 0.964539
11/9/2023 11:00:57 10.302372 2.338256 190.927246 0.960704
11/9/2023 11:01:05 10.271013 2.205773 190.927246 0.960721
11/9/2023 11:01:12 10.232915 1.640124 190.927246 0.956645
11/9/2023 11:01:43 10.249899 1.882942 190.927246 0.957628
11/9/2023 11:01:50 10.16975 2.140964 190.927246 0.954771
11/9/2023 11:01:58 10.08834 1.688639 190.927246 0.952868
11/9/2023 11:02:05 4.311244 96.979062 190.927246 0.951589
11/9/2023 11:02:13 1.095749 331.27667 190.938141 0.952925
11/9/2023 11:02:20 0.863246 392.046242 190.969925 1.002623
11/9/2023 11:02:28 0.694346 398.10201 190.978104 1.034226
11/9/2023 11:02:35 0.159355 417.028181 190.978104 1.117335
11/9/2023 11:02:43 4.635689 183.11036 190.978104 1.085395
11/9/2023 11:02:50 8.930513 61.15926 190.978104 1.056216
11/9/2023 11:02:58 9.266761 51.315131 190.978104 1.043719
11/9/2023 11:03:13 9.346222 48.991852 190.978104 1.041297
11/9/2023 11:03:20 9.425009 48.822046 190.981918 1.042071
11/9/2023 11:03:28 9.515612 48.815812 191.028961 1.042925
11/9/2023 11:03:35 10.368449 14.357474 191.06076 1.042604
Date Time CO ppm 191C (1of2) span NOx Wet Propane 191C span Temp ( C )Pressure (atm)Date Time Ethylene 191C TE Temp ( C )Pressure (atm)
11/9/2023 14:12:42 491.143706 493.295172 492.917163 190.994293 1.032684 11/9/2023 14:11:13 95.694909 190.954254 1.021717
11/9/2023 14:12:49 501.565691 503.265534 504.1681 191.009888 1.03537 11/9/2023 14:11:20 98.128877 190.968109 1.021964
11/9/2023 14:12:57 501.744853 504.558135 503.913361 191.009888 1.035648 11/9/2023 14:11:28 98.63312 191.022614 1.021772
11/9/2023 14:13:04 501.36526 504.299779 505.18091 190.994446 1.035754 11/9/2023 14:11:35 98.332114 191.022614 1.021582
11/9/2023 14:13:12 501.86035 503.435151 503.463172 190.91452 1.0359 11/9/2023 14:11:43 98.421922 191.022614 1.020837
11/9/2023 14:13:19 501.692012 503.632521 504.742225 190.91452 1.035717 11/9/2023 14:11:50 98.670237 191.022614 1.020495
11/9/2023 14:13:27 502.162151 504.196354 504.954634 190.949951 1.035476 11/9/2023 14:11:58 98.773407 191.022614 1.020243
11/9/2023 14:13:34 503.379163 504.433295 504.700503 190.990814 1.035599 11/9/2023 14:12:05 99.015346 191.022614 1.019864
11/9/2023 14:13:42 503.404071 503.831669 505.698027 190.990814 1.035935 11/9/2023 14:12:13 99.161872 190.94313 1.020232
11/9/2023 14:13:49 505.067725 505.087286 505.290813 190.990814 1.036219 11/9/2023 14:12:21 99.035186 190.927246 1.020011
Date Time CO ppm 191C (1of2) span NOx Wet Propane 191C span Temp ( C )Pressure (atm)Date Time Ethylene 191C TE Temp ( C )Pressure (atm)
11/9/2023 14:11:28 -0.071527 0.040178 -0.259043 191.022614 1.021772 11/9/2023 14:14:26 -0.085841 190.990814 1.035929
11/9/2023 14:11:35 -0.083197 0.144985 0.050002 191.022614 1.021582 11/9/2023 14:14:33 0.053075 190.990814 1.036798
11/9/2023 14:11:43 -0.130461 0.196475 -0.188623 191.022614 1.020837 11/9/2023 14:14:41 -0.062067 190.990814 1.03603
11/9/2023 14:11:50 -0.016961 0.109681 -0.406892 191.022614 1.020495 11/9/2023 14:14:48 -0.074029 190.93541 1.036732
11/9/2023 14:11:58 -0.227597 0.292649 -0.240919 191.022614 1.020243 11/9/2023 14:14:56 -0.212404 190.895447 1.036907
11/9/2023 14:12:05 -0.149309 -0.030897 -0.690071 191.022614 1.019864 11/9/2023 14:15:03 -0.083209 190.903397 1.036608
11/9/2023 14:12:13 -0.098321 0.135594 -0.521337 190.94313 1.020232 11/9/2023 14:15:11 -0.235504 190.974472 1.036773
11/9/2023 14:12:21 -0.152308 -0.087623 -0.337032 190.927246 1.020011 11/9/2023 14:15:18 0.313109 190.978104 1.036985
POST SYSTEM ZERO
PRE SYSTEM ZERO
SAMPLE SPIKE RECOVERY
POST SYSTEM CAL
PRE TEST 1 504.4 10.2 1.6 9.3 51.3 0.094 104.6%
Sensor Analyzer Cal Zero Cal Zero
Response (ppm)Level (ppm)Response (ppm)Error (%)Error (%)
NOx 507.8 512.0 0.0 -0.82 0.01
CO 503.6 511.7 0.0 -1.58 0.01
Propane 511.0 504.4 0.2 1.32 0.04
Ethylene 99.0 100.30 -0.3 -1.30 -0.26
Sensor System Cal Zero Cal Zero
Response (ppm)Level (ppm)Response (ppm)Recovery (%)Error (%)
NOx 507.2 512.0 0.1 -0.94 0.02
CO 501.5 511.7 0.2 -1.99 0.03
Propane 508.6 504.4 0.3 0.84 0.06
Ethylene*98.9 100.30 -0.1 -1.37 -0.11
Sensor System Cal Zero Cal Zero Cal Zero
Response (ppm)Level (ppm)Response (ppm)Recovery (%)Error (%)Drift Error (%)Drift Error (%)
NOx 505.1 512.0 0.1 -1.35 0.02 0.41 0.00
CO 505.1 511.7 -0.1 -1.30 -0.02 0.70 0.05
Propane 505.3 504.4 -0.3 0.18 -0.06 0.66 0.13
Ethylene*99.0 100.30 0.0 -1.26 -0.05 0.11 0.06
*CTS Scans are conducted with Ethylene through the sample line.
Lf
5.11
Lr Cr Tr Pr Lr/Lf
5.08 99.0 191.0 1.0 0.99
Ls Cs Ts Ps Ls/Lf
5.08 98.9 191.0 1.0 0.99
% Recovery
Propane
PRE DIRECT CAL
FTIR QA/QC SUMMARY
SAMPLE RECOVERY CALCULATIONS
Period Spike #Concentration of
Propane Cylinder
Stack CO2
Concentration
Pathlength
Stack Propane
Concentration
Stack + Spike CO2
Concentration
Stack + Propane
Concentration
DF
Calculated
POST SYSTEM CAL
PRE SYSTEM CAL
CERTIFICATE OF ANALYSIS
Grade of Product: EPA PROTOCOL STANDARD
Part Number: E05NI99E15A0000 Reference Number: 153-402691745-1
Cylinder Number: CC752607 Cylinder Volume: 144.0 CF
Laboratory: 124 - Tooele (SAP) - UT Cylinder Pressure: 2015 PSIG
PGVP Number: B72023 Valve Outlet: 660
Gas Code:CH4,CO,NO,NOX,PPN,BALN Certification Date: Mar 24, 2023
Expiration Date:Mar 24, 2031
Certification performed in accordance with “EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards (May 2012)” document EPA
600/R-12/531, using the assay procedures listed. Analytical Methodology does not require correction for analytical interference. This cylinder has a total analytical
uncertainty as stated below with a confidence level of 95%. There are no significant impurities which affect the use of this calibration mixture. All concentrations are on a
mole/mole basis unless otherwise noted. The results relate only to the items tested. The report shall not be reproduced except in full without approval of the laboratory. Do
Not Use This Cylinder below 100 psig, i.e. 0.7 megapascals.
ANALYTICAL RESULTS
Component Requested Actual Protocol Total Relative Assay
Concentration Concentration Method Uncertainty Dates
NOX 500.0 PPM 512.0 PPM G1 +/- 0.7% NIST Traceable 03/17/2023, 03/24/2023
CARBON MONOXIDE 500.0 PPM 511.7 PPM G1 +/- 0.9% NIST Traceable 03/17/2023
METHANE 500.0 PPM 512.6 PPM G1 +/- 1.4% NIST Traceable 03/17/2023
NITRIC OXIDE 500.0 PPM 512.0 PPM G1 +/- 0.7% NIST Traceable 03/17/2023, 03/24/2023
PROPANE 500.0 PPM 504.4 PPM G1 +/- 1.0% NIST Traceable 03/20/2023
NITROGEN Balance
CALIBRATION STANDARDS
Type Lot ID Cylinder No Concentration Uncertainty Expiration Date
NTRM 15060543 CC453965 491.9 PPM CARBON MONOXIDE/NITROGEN 0.6 Mar 05, 2027
PRM 12409 D913660 15.01 PPM NITROGEN DIOXIDE/AIR 1.5%Feb 17, 2023
NTRM 08011609 K020818 496.5 PPM METHANE/NITROGEN 0.6%Aug 08, 2024
NTRM 15010116 KAL003474 494.6 PPM NITRIC OXIDE/NITROGEN 0.5%Aug 16, 2027
GMIS 1534012021103 ND73012 4.956 PPM NITROGEN DIOXIDE/NITROGEN 1.6%Jun 15, 2025
NTRM 12010921 ND46380 487 PPM PROPANE/AIR 0.6%Apr 24, 2024
The SRM, NTRM, PRM, or RGM noted above is only in reference to the GMIS used in the assay and not part of the analysis.
ANALYTICAL EQUIPMENT
Instrument/Make/Model Analytical Principle Last Multipoint Calibration
Nicolet iS50 AUP2110269 CO MCO FTIR Mar 15, 2023
Nicolet iS50 AUP2110269 CH4 M1CH4 FTIR Mar 07, 2023
Nicolet iS50 AUP2110269 NO MNO FTIR Mar 21, 2023
Nicolet iS50 AUP2110269 NO2 impurity FTIR NO2 impurity Mar 09, 2023
MKS FTIR C3H8 018143349 FTIR Mar 01, 2023
Triad Data Available Upon Request
Airgas Specialty Gases
Airgas USA LLC
525 North Industrial Loop Road
Tooele, UT 84074
Airgas.com
Signature on file
Approved for Release Page 1 of 1
CERTIFICATE OF ANALYSIS
Grade of Product: EPA PROTOCOL STANDARD
Part Number: E02NI99E15W0051 Reference Number: 153-402577489-1
Cylinder Number: CC486070 Cylinder Volume: 144.0 CF
Laboratory: 124 - Tooele (SAP) - UT Cylinder Pressure: 2015 PSIG
PGVP Number: B72022 Valve Outlet: 660
Gas Code:NO2,BALN Certification Date: Nov 08, 2022
Expiration Date:Nov 08, 2025
Certification performed in accordance with “EPA Traceability Protocol for Assay and Certification of Gaseous Calibration Standards (May 2012)” document EPA
600/R-12/531, using the assay procedures listed. Analytical Methodology does not require correction for analytical interference. This cylinder has a total analytical
uncertainty as stated below with a confidence level of 95%. There are no significant impurities which affect the use of this calibration mixture. All concentrations are on a
mole/mole basis unless otherwise noted. The results relate only to the items tested. The report shall not be reproduced except in full without approval of the laboratory. Do
Not Use This Cylinder below 100 psig, i.e. 0.7 megapascals.
ANALYTICAL RESULTS
Component Requested Actual Protocol Total Relative Assay
Concentration Concentration Method Uncertainty Dates
NITROGEN DIOXIDE 150.0 PPM 146.6 PPM G1 +/- 2.0% NIST Traceable 11/01/2022, 11/08/2022
NITROGEN Balance
CALIBRATION STANDARDS
Type Lot ID Cylinder No Concentration Uncertainty Expiration Date
GMIS 15340120215 CC511005 59.52 PPM NITROGEN DIOXIDE/NITROGEN 1.4%Dec 17, 2024
PRM 12397 D887665 74.2 PPM NITROGEN DIOXIDE/AIR 1.3%Feb 02, 2022
The SRM, NTRM, PRM, or RGM noted above is only in reference to the GMIS used in the assay and not part of the analysis.
ANALYTICAL EQUIPMENT
Instrument/Make/Model Analytical Principle Last Multipoint Calibration
MKS FTIR NO2 018143349 FTIR Nov 01, 2022
Triad Data Available Upon Request
PERMANENT NOTES:OXYGEN ADDED TO MAINTAIN STABILITY
Airgas Specialty Gases
Airgas USA LLC
525 North Industrial Loop Road
Tooele, UT 84074
Airgas.com
Signature on file
Approved for Release Page 1 of 1
CERTIFICATE OF ANALYSIS
Grade of Product: PRIMARY STANDARD
Part Number:X02NI99P15AD524 Reference Number: 153-402518055-1
Cylinder Number: CC201415 Cylinder Volume:140.0 CF
Laboratory:124 - Tooele (SAP) - UT Cylinder Pressure:2015 PSIG
Analysis Date:Aug 15, 2022 Valve Outlet:350
Lot Number:153-402518055-1
Expiration Date: Aug 15, 2025
Primary Standard Gas Mixtures are traceable to N.I.S.T. weights and/or N.I.S.T. Gas Mixture reference materials.
ANALYTICAL RESULTS
Component Req Conc Actual Concentration Analytical
(Mole %)Uncertainty
ETHYLENE 100.0 PPM 100.3 PPM +/- 1%
NITROGEN Balance
Airgas Specialty Gases
Airgas USA LLC
525 North Industrial Loop Road
Tooele, UT 84074
Airgas.com
Signature on file
Approved for Release Page 1 of 1
Dominion – Clay Basin
11-9-2023

Dominion – Clay Basin
11-9-2023

Dominion – Clay Basin
11-9-2023

Instrument Resolution – FWHH – 0.4764 cm-1 which is < 0.55 cm-1 (therefore meets ASTM)
Water Frequency – Freq – 3920.0886 cm-1 which is +/- 0.075 of 3920.0952 cm-1 (therefore
meets ASTM)
Please note: FWHH is the Full Width at Half Height of the resolution. The frequency position is
only calculating the center line for one water line in the spectrum. MKS uses 3920.0952 cm-1
since it is a single water line.

Spectral Fit

Run 1

Spectral Fit

Run 2

Spectral Fit

Run 3

Analysis Validation Report
Sample Filename: C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000147.LAB
Filename for noise: C:\OLT\2023 Data\MPLX\Flat Rock Post Cat 9-11-23\FLAT ROCK POST CAT 9-11-23_000011.LAB
Interferences Filenames: C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000069.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000070.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000071.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000072.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000073.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000074.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000075.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000076.LAB
Recipe path: C:\OLT\RECIPES\NEW TEST.MGRCP
Gas calibration NameConc MDC3 MDC2 MDC1 MAU FMU*R OCU ~ DL ~ CL ~ Bias Sigma Range Span Comment
NO 191C 48.34 2.83 -0.54 0.74 3.85 3.85 -1.44 --0-2795 1 Good
NO2 191C 0.96 0.58 0.89 0.1 0.1 0.61 0.61 1.01 1.01 0.12 0.3 0-488 0.97 Close to DL
N2O 191C 40.19 1.83 -0.03 0.04 2.06 2.06 -1 --0-200 -Good
NH3 TE 191C 1.76 36.7 29.61 3.39 5.78 62.65 62.65 32.96 33.62 3.35 9.87 0-2995 -Close to DL
H2O% (HIGH) 191C19.15 0.47 -0.01 0.02 0.72 0.72 -0.38 --0-40 -Good
FORMALDEHYDE 191C0 0.57 0.11 0.21 0.24 0.64 0.64 0.14 0.36 0.03 0.04 0-69 -Close to DL
FORMIC ACID 191C TE0.46 4.62 1.26 1.26 1.47 5.41 5.41 1.58 3.38 0.33 0.42 0-466 -Close to DL
CH4 2900 CM-1 191C225.98 6.44 -1.4 2.04 12.13 12.13 -4.52 --0-3143 0.98 Good
PROPANE 191C 1.9 0.73 2.48 0.19 0.23 0.87 0.87 3.04 3.04 0.55 0.83 0-4976 0.96 Close to DL
PROPYLENE 191C TE-0.87 5.43 1.21 1.35 1.6 6.42 6.42 1.4 4.07 0.19 0.4 0-194 -Close to DL
ETHANE 191C 6.73 1.36 7.54 0.46 0.72 2.12 2.12 8.43 8.43 0.89 2.51 0-1004 -Close to DL
ETHYLENE 191C TE2.8 17.59 1.61 1.66 2.04 21.69 21.69 1.63 15.88 0.02 0.54 0-900 -Close to DL
CO PPM 191C (1OF2)40.65 1.6 -0.28 0.59 3.32 3.32 -0.82 --0-5010 0.98 Good
CO2% 191C 9.77 0.24 -0.02 0.02 0.33 0.33 -0.2 --0-23 -Good
CO% 191C (2OF2)0 0 0 0 0 0 0 0.01 0.01 0 0 0-8 -Close to DL
ACETALDEHYDE 191C-1.15 1.34 1.59 0.59 0.76 1.72 1.72 1.71 1.71 0.13 0.53 0-186 0.98 Close to DL
ACETYLENE 191C0.16 3.29 0.27 0.55 0.73 4.35 4.35 0.31 2.75 0.04 0.09 0-1016 -Close to DL
SO2 191C 4.63 5.84 3.86 0.55 0.67 7.12 7.12 4.25 5.37 0.39 1.29 0-964 1.01 Close to DL
HEXANE 191C 0 0.5 0.11 0.11 0.15 0.67 0.67 0.13 0.39 0.02 0.04 0-1000 -Close to DL
Analysis Validation Report
Sample Filename: C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000195.LAB
Filename for noise: C:\OLT\2023 Data\MPLX\Flat Rock Post Cat 9-11-23\FLAT ROCK POST CAT 9-11-23_000011.LAB
Interferences Filenames: C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000069.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000070.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000071.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000072.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000073.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000074.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000075.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000076.LAB
Recipe path: C:\OLT\RECIPES\NEW TEST.MGRCP
Gas calibration NameConc MDC3 MDC2 MDC1 MAU FMU*R OCU ~ DL ~ CL ~ Bias Sigma Range Span Comment
NO 191C 40.94 4.11 -0.54 0.74 5.6 5.6 -2.7 --0-2795 1 Good
NO2 191C 1.02 0.87 0.89 0.1 0.1 0.91 0.91 1.01 1.01 0.12 0.3 0-488 0.97 Close to DL
N2O 191C 37.3 1.54 -0.03 0.04 1.74 1.74 -0.84 --0-200 -Good
NH3 TE 191C -2.17 39.57 29.61 3.39 5.78 67.55 67.55 32.96 36.48 3.35 9.87 0-2995 -Close to DL
H2O% (HIGH) 191C21.69 0.48 -0.01 0.02 0.74 0.74 -0.43 --0-40 -Good
FORMALDEHYDE 191C0.03 0.55 0.11 0.21 0.24 0.62 0.62 0.14 0.34 0.03 0.04 0-69 -Close to DL
FORMIC ACID 191C TE0.59 5.25 1.26 1.26 1.47 6.15 6.15 1.58 4.01 0.33 0.42 0-466 -Close to DL
CH4 2900 CM-1 191C222.86 6.54 -1.4 2.04 12.31 12.31 -4.46 --0-3143 0.98 Good
PROPANE 191C 1.83 0.84 2.48 0.19 0.23 1.01 1.01 3.04 3.04 0.55 0.83 0-4976 0.96 Close to DL
PROPYLENE 191C TE-0.68 5.97 1.21 1.35 1.6 7.06 7.06 1.4 4.61 0.19 0.4 0-194 -Close to DL
ETHANE 191C 6.87 1.31 7.54 0.46 0.72 2.04 2.04 8.43 8.43 0.89 2.51 0-1004 -Close to DL
ETHYLENE 191C TE2.99 21.32 1.61 1.66 2.04 26.3 26.3 1.63 19.6 0.02 0.54 0-900 -Close to DL
CO PPM 191C (1OF2)38.79 1.65 -0.28 0.59 3.42 3.42 -0.81 --0-5010 0.98 Good
CO2% 191C 9.49 0.25 -0.02 0.02 0.34 0.34 -0.19 --0-23 -Good
CO% 191C (2OF2)0 0 0 0 0 0 0 0.01 0.01 0 0 0-8 -Close to DL
ACETALDEHYDE 191C-1.43 1.29 1.59 0.59 0.76 1.66 1.66 1.71 1.71 0.13 0.53 0-186 0.98 Close to DL
ACETYLENE 191C0.26 3.48 0.27 0.55 0.73 4.59 4.59 0.31 2.94 0.04 0.09 0-1016 -Close to DL
SO2 191C 5.93 7.3 3.86 0.55 0.67 8.89 8.89 4.25 6.79 0.39 1.29 0-964 1.01 Close to DL
HEXANE 191C -0.14 0.56 0.11 0.11 0.15 0.76 0.76 0.13 0.45 0.02 0.04 0-1000 -Close to DL
Analysis Validation Report
Sample Filename: C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000260.LAB
Filename for noise: C:\OLT\2023 Data\MPLX\Flat Rock Post Cat 9-11-23\FLAT ROCK POST CAT 9-11-23_000011.LAB
Interferences Filenames: C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000069.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000070.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000071.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000072.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000073.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000074.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000075.LAB
C:\OLT\2023 Data\Dominion Wexpro\Clay Basin ICE1 11-9-23\CLAY BASIN ICE1 11-9-23_000076.LAB
Recipe path: C:\OLT\RECIPES\NEW TEST.MGRCP
Gas calibration NameConc MDC3 MDC2 MDC1 MAU FMU*R OCU ~ DL ~ CL ~ Bias Sigma Range Span Comment
NO 191C 44.19 2.87 -0.54 0.74 3.91 3.91 -1.51 --0-2795 1 Good
NO2 191C 0.91 0.62 0.89 0.1 0.1 0.65 0.65 1.01 1.01 0.12 0.3 0-488 0.97 Close to DL
N2O 191C 34.13 1.51 -0.03 0.04 1.7 1.7 -0.82 --0-200 -Good
NH3 TE 191C -0.9 40.55 29.61 3.39 5.78 69.22 69.22 32.96 37.49 3.35 9.87 0-2995 -Close to DL
H2O% (HIGH) 191C17.84 0.48 -0.01 0.02 0.75 0.75 -0.36 --0-40 -Good
FORMALDEHYDE 191C-0.01 0.54 0.11 0.21 0.24 0.61 0.61 0.14 0.33 0.03 0.04 0-69 -Close to DL
FORMIC ACID 191C TE0.7 4.74 1.26 1.26 1.47 5.55 5.55 1.58 3.49 0.33 0.42 0-466 -Close to DL
CH4 2900 CM-1 191C231.74 6.79 -1.4 2.04 12.78 12.78 -4.63 --0-3143 0.98 Good
PROPANE 191C 2.15 0.75 2.48 0.19 0.23 0.9 0.9 3.04 3.04 0.55 0.83 0-4976 0.96 Close to DL
PROPYLENE 191C TE-1.62 5.44 1.21 1.35 1.6 6.43 6.43 1.4 4.06 0.19 0.4 0-194 -Close to DL
ETHANE 191C 6.93 1.29 7.54 0.46 0.72 2.01 2.01 8.43 8.43 0.89 2.51 0-1004 -Close to DL
ETHYLENE 191C TE2.93 18.79 1.61 1.66 2.04 23.17 23.17 1.63 17.07 0.02 0.54 0-900 -Close to DL
CO PPM 191C (1OF2)42.66 1.54 -0.28 0.59 3.19 3.19 -0.85 --0-5010 0.98 Good
CO2% 191C 9.94 0.24 -0.02 0.02 0.34 0.34 -0.2 --0-23 -Good
CO% 191C (2OF2)0 0 0 0 0 0 0 0.01 0.01 0 0 0-8 -Close to DL
ACETALDEHYDE 191C-1.25 1.28 1.59 0.59 0.76 1.64 1.64 1.71 1.71 0.13 0.53 0-186 0.98 Close to DL
ACETYLENE 191C0.3 3.5 0.27 0.55 0.73 4.62 4.62 0.31 2.96 0.04 0.09 0-1016 -Close to DL
SO2 191C 4.13 5.13 3.86 0.55 0.67 6.25 6.25 4.25 4.68 0.39 1.29 0-964 1.01 Close to DL
HEXANE 191C -0.02 0.51 0.11 0.11 0.15 0.69 0.69 0.13 0.4 0.02 0.04 0-1000 -Close to DL
APPENDIX C
Load Approximation

Test Run Load %Site Rated Load, bhp Load Approx., bhp
1 59 1480 873.2
2 59 1480 873.2
3 59 1480 873.2
Average 59.0 873.2
Engine Load Approximation based on Panel Levels
APPENDIX D
Example Calculations and Summary

Test
Run
Flowrate
dscfm
Approx.
BHP
Avg O2
%
NOx
ppmvd
NOx
g/bhp-hr
NOx
lbs/hr
CO
ppmvd
CO
g/bhp-hr
CO
lbs/hr
NMNEHC
ppmvd
NMNEHC
g/bhp-hr
NMNEHC
lbs/hr
Moisture
Content %
1 1452.18 873.2 0.0 64.28 0.3 0.67 49.97 0.2 0.32 4.38 0.0 0.04 18.57
2 1422.97 873.2 0.0 63.00 0.3 0.64 49.85 0.2 0.31 4.60 0.0 0.04 19.27
3 1428.23 873.2 0.0 66.31 0.4 0.68 49.54 0.2 0.31 4.48 0.0 0.04 19.00
873.2 0.0 64.53 0.3 0.66 49.79 0.2 0.31 4.49 0.0 0.04 18.95
Summary
Average Levels
Example Calculations: Dominion Energy Wexpro, Clay Basin Compressor Station. ICE-1

The following is a step-by-step calculation for the first test run conducted on the Clay Basin
Compressor Station ICE-1.

Test Parameters

• Stack Diameter = 16 inches
• Traverse Points = 16
• Ports = 2
• Barometric Pressure = 23.95 in Hg
• Average O2 = 0.0%
• Average CO2 = 12%
• Load Approximation = 873.2 bhp
• Moisture Content = 18.57%

EPA 40 CFR 60(A) Methods 1-3: Determination of Stack Gas Velocity and Flow Rate

Dry Molecular Weight (lb/lbmol)
= (0.44 * %CO2) + (0.32 * %O2) + ((0.28 * (%N2 + %CO))

Where:
%CO2 – Carbon Dioxide Content Of The Gas = 12%
%O2 – Oxygen Content Of The Gas = 0.0%
%N2 – Nitrogen Content Of The Gas
%CO – Carbon Monoxide Content Of The Gas

(%N2 +%CO) = (100 - %O2 - %CO2)

= (100 – 0.0 – 12)

= 88.0% Dry

= (0.44 * %CO2) + (0.32 * %O2) + ((0.28 * (%N2 + %CO))

= (0.44 * 12) + (0.32 * 0.0) + (0.28 * 88.0)

= 29.92 lb/lbmol

Wet Molecular Weight (lb/lbmol)
= MD * (1-BWS) + (18) * BWS

Where:
MD – Molecular Weight Of The Dry Gas (lb/lbmol) = 29.92 lb/lbmol
BWS – Moisture Content Of The Gas (%/100) = 18.57%

= MD * (1-BWS) + (18) * BWS

= 29.92 * (1 – (18.57/ 100)) + (18 * (18.57/ 100))

= 27.71 lb/lbmol

Average Stack Gas Velocity (ft/sec)
= Cp * (85.49) * ∆PAVG * (TS / (((PS / 13.6) + PB) * MA))

Where:
CP – Pitot tube constant (unitless) = 0.84
∆PAVG – Average square root of the stack gas pitot DP (inches water) = 0.629 in H2O
TS – Average stack temperature (R) = 1214 R
PB – Barometric pressure (in Hg) = 23.95 in Hg
PS – Stack pressure relative to barometric pressure (inches water) = 0.1 in H2O
MA – Molecular weight of the wet gas (lb/lbmol) = 27.71 lb/lbmol

= Cp * (85.49) * ∆PAVG * (TS / (((PS / 13.6) + PB) * MA))

= 0.84 * (85.49) * 0.629 * ( 1214 / (((0.1/ 13.6) + 23.95) * 27.71))

= 61.12 ft/sec

Average Dry Flowrate (dscfm)
= 60 * (1-BWS) * VS *  * (((DS / 2) / 12))2)* TSTD / TS * (PB + (PS / 13.6)) / 29.92

Where:
DS – Diameter of the stack (inches) = 16 inches
BWS – Moisture content of the gas (%) = 18.57%
TSTD – Standard temperature (528R)
TS – Average stack temperature (R) = 1214 R
PB – Barometric pressure (in Hg) = 23.95 in Hg
PS – Stack pressure relative to barometric pressure (inches water) = 0.1 in H2O
VS– Average Stack gas velocity (ft/sec) = 61.12 ft/sec

= 60 * (1-BWS) * VS *  * (((DS / 2) / 12))2)* TSTD / TS * (PB + (PS / 13.6)) / 29.92

= 60 * (1 - (18.57/ 100)) * 61.12 *  * (((16 / 2) / 12))2) * 528 / 1214 * (23.95 + (0.1 /
13.6)) / 29.92

= 1452.18 dscfm

Conversion of Dry Flowrate to m3/hr
= Q * 60 * 2.83168*10 -2

Where:
Q – Volumetric Flowrate = 1452.18 dscfm
2.83168*10 -2 – Conversion factor for cubic feet to cubic meter
60 – Minutes in an hour

= Q * 60 * 2.83168*10 -2

= 1452.18 *60 * 2.83168*10 -2

= 2467.27 m3/hr

ASTM D 6348-03: Determination of NOx, CO and VOC Emissions From Stationary Sources

NOx Emission Rate (g/Bhp-hr)
= (Cd * 1.912*10 -3 * Q * T) / HP-hr

Where:
Cd – Measured NOx concentration in ppm = 64.28 ppm
1.92*10 -3 - Conversion constant for ppm to g/m3 NOx
Q – Volumetric Flowrate = 2467.27 m3/hr
T – Time in Hours of Test Run = 1 hr
HP-hr – Unit Brake Horsepower = 873.2 Bhp

= (Cd * 1.912*10 -3 * Q * T) / HP-hr

= (64.28 * 1.912*10 -3 * 2467.27 * 1) / 873.2

= 0.3 g/Bhp-hr

NOx Emission Rate (lbs/hr)
= g/Bhp-hr / 454 * Bhp

Where:
g/Bhp-hr = 0.3 g/Bhp-hr
454 – Conversion factor for g to lbs
Bhp - Unit Brake Horsepower = 873.2 Bhp

= g/Bhp-hr / 454 * Bhp

= 0.3 / 454 * 873.2

= 0.67 lbs/hr

NOx Correction to 15% O2
= PPMO * (20.9 – 15) / (20.9 - %O2)

Where:
NOx – Oxides of Nitrogen
PPMO – Average Concentration of Pollutant at Outlet = 64.28 ppm
O2% – Oxygen Concentration In Exhaust Stream = 0.0%

= PPMO * (20.9 – 15) / (20.9 - %O2)

= 64.28 * (20.9 – 15) / (20.9 -0.0)

= 18.15 ppm @ 15% O2

CO Emission Rate (g/Bhp-hr)
= (Cd * 1.164*10 -3 * Q * T) / HP-hr

Where:
Cd – Measured CO concentration in ppm = 49.97 ppm
1.164*10 -3 - Conversion constant for ppm to g/m3 CO
Q – Volumetric Flowrate = 2467.27 m3/hr
T – Time in Hours of Test Run = 1 hr
HP-hr – Unit Brake Horsepower = 873.2 Bhp

= (Cd * 1.164*10 -3 * Q * T) / HP-hr

= (49.97 * 1.164*10 -3 * 2467.27 * 1) / 873.2

= 0.2 g/Bhp-hr

CO Emission Rate (lbs/hr)
= g/Bhp-hr / 454 * Bhp

Where:
g/Bhp-hr = 0.2 g/Bhp-hr
454 – Conversion factor for g to lbs
Bhp - Unit Brake Horsepower = 873.2 Bhp

= g/Bhp-hr / 454 * Bhp

= 0.2 / 454 * 873.2

= 0.32 lbs/hr

CO Correction to 15% O2
= PPMO * (20.9 – 15) / (20.9 - %O2)

Where:
CO – Carbon Monoxide
PPMO – Average Concentration of Pollutant at Outlet = 49.97 ppm
O2% – Oxygen Concentration In Exhaust Stream = 0.0%

= PPMO * (20.9 – 15) / (20.9 - %O2)

= 49.97 * (20.9 – 15) / (20.9 -0.0)

= 14.11 ppm @ 15% O2

VOC Emission Rate (g/Bhp-hr)
= (Cd * 1.833*10 -3 * Q * T) / HP-hr

Where:
Cd – Measured VOC concentration in ppm = 4.38 ppm
1.833*10 -3 - Conversion constant for ppm to g/m3 VOC
Q – Volumetric Flowrate = 2467.27 m3/hr
T – Time in Hours of Test Run = 1 hr
HP-hr – Unit Brake Horsepower = 873.2 Bhp

= (Cd * 1.833*10 -3 * Q * T) / HP-hr

= (4.38 * 1.833*10 -3 * 2467.27 * 1) / 873.2

= 0.0 g/Bhp-hr

VOC Emission Rate (lbs/hr)
= g/Bhp-hr / 454 * Bhp

Where:
g/Bhp-hr = 0.0 g/Bhp-hr
454 – Conversion factor for g to lbs
Bhp - Unit Brake Horsepower = 873.2 Bhp

= g/Bhp-hr / 454 * Bhp

= 0.0 / 454 * 873.2

= 0.04 lbs/hr

VOC Correction to 15% O2
= PPMO * (20.9 – 15) / (20.9 - %O2)

Where:
VOC – Volatile Organic Compounds
PPMO – Average Concentration of Pollutant at Outlet = 4.38 ppm
O2% – Oxygen Concentration In Exhaust Stream = 0.0%

= PPMO * (20.9 – 15) / (20.9 - %O2)

= 4.38 * (20.9 – 15) / (20.9 -0.0)

= 1.24 ppm @ 15% O2

APPENDIX E
Field Notes and Source Test Certification
FTIR Engine Test Sheet
Company Name ~r1/~?t:Y"J ~-:ry W~t"r,/
Location I Unit I.D. /:h.. 15c..s-, '.." J:c.e-I
Type of Test Completed / .'J' ... I t.// "'""V Field Technician (s) T J Schmidtberger
Client Rep andlor State Rep rr ..­~, ' I' A0I,(v'vI\,;> -' UM~,,-ru.-....L \A,"'.~ "A--~ ?:)~. -
Date / /'$J _ .:l3
Stack Diagram
16
Cvlinder # I Concentration
;::)6
CC752607 I 504.4
CC486070 I 146.6
CC201415 I 100.3
CC752607 I 511.7
CC752607 I 512
ICC752607 I j 512.6
Verified: T$
"
T
t
A
1
B
+f
T
Time of Readinq
Atm Pressure (in Ha)
Test 1 Test 2 Test 3
/1;°5'"
?:3.15"'
I';;l.. »c
2>."1~1
1:0':/
::;2!::3 ~'~'? .. ~_J.
~3
90)....
it :ZsP
9ft. 'ft
;1."7
69
10)....­
~'
---­"­
-;z..~D
1£-;2.3 .~
Atm Temp ('F)
Enqine RPM
3'1
<faJ­
40
C;o)....
*Manifold Pres. ¥ae(") er Doost(psi) 01 Doest (p&ia)-t"~.u""A
Manifold Temp ('F)
l ;;2.3.3 I<;)?-,o
~.~
c. ;;1..3., :> rZ-23,1
~~.~
""-'",
S-.:J
to I.
'/~
;t'-=i!'7
Psuction (psi) Staoe 1
Tsuction ('F) Stace 1
Pdischarge (psi) Stage 1
Psuction (psi) Stage 2
Tsuction ('F) Stage 2
Pdischarge (psi) Stage 2
dCj
51::.
/oL,
~
r:#i(C?
Psuction (psi) staoe 3
Tsuction ('F) Stace 3
Pdischarqe (psi) stace 3
Psi1ctian (psi) Staqe 4
Tsuction ('F) Staoe 4
Pdischarge (psi) Stage 4
Gas Throughput (mmcf/d) or ( )
Pre Cat Temp ('F)
Post Cat Temp ('F)
Cat Differential Pres. (" of H2O)
... ..­
--/\.
tts""/
.......... ../
<, /"
~ ,,­<,
76''-1
:;l£Q-.
;;L, " •t:::>
..........
./' ,
bf:e1>
-........ ./'
~/
/',
./ ,
--f~L:.t:
"~63.
;;2, ()..
, .......
.../\
bb!
'-. ./''"'-­/'
/,~.
.~ " ~55
~''I;
71 '!!Y,
;;;'.6"""
Humiditv %
02%
C02 % Dry
LOAD % ltPanelJ)or (Estimated) W4o:..~(:.:.... Le.. t:;l''''t
""3{.
O.C>
/jJ.~ <>
~,
32­
0. 0
J::J.O
s::;~,;,,,,,, I
.so,
00
)~.D
6'1
lenition Ti~F)
AFR Settinq mV (Left Bank) Pre. C~-f
AFR Setting mV (Right Bank) /79.$.+ c....,f
;,(6. a
,/, 't,').')" V
O. $<;'<-::.' V"
.ss» ;;/6,0
.z:»
.......
"'"""''''
Rev 8
• Some units show boost in inches of Hg. In this situation please indicate if it is
positive (+) or negative(-). Eg: (+12") or (- 5")
9/17/2019
COMPANY NAME:Dominion Energy Wexpro COMPANY LOCATION:Clay Basin ICE-1 DATE:11/9/2023
STACK DIAMETER (inches):16 TRAVERSE POINTS:16 2
TEST RUN #1 TEST RUN #2 TEST RUN #3
AVERAGE O2:0 AVERAGE O2:0 AVERAGE O2:0
AVERAGE CO2:12 AVERAGE CO2:12 AVERAGE CO2:12
BARO PRESSURE:23.95 BARO PRESSURE:23.94 BARO PRESSURE:23.93
Point Insertion DepthDP (H2O)Ts (deg F)Stat P (H2O)Point Insertion DepthDP (H2O)Ts (deg F)Stat P (H2O)Point Insertion DepthDP (H2O)Ts (deg F)Stat P (H2O)
1 0.512 0.33 754 0.12 1 0.512 0.32 752 0.11 1 0.512 0.33 751 0.11
2 1.68 0.35 2 1.68 0.36 2 1.68 0.36
3 3.104 0.38 3 3.104 0.39 3 3.104 0.39
4 5.168 0.41 4 5.168 0.41 4 5.168 0.42
5 10.832 0.45 5 10.832 0.44 5 10.832 0.41
6 12.896 0.41 6 12.896 0.38 6 12.896 0.4
7 14.32 0.42 7 14.32 0.35 7 14.32 0.38
8 15.488 0.39 8 15.488 0.35 8 15.488 0.33
9 9 9
10 10 10
11 11 11
12 12 12
13 13 13
14 14 14
15 15 15
16 16 16
1 0.512 0.36 754 0.12 1 0.512 0.35 752 0.11 1 0.512 0.35 752 0.11
2 1.68 0.39 2 1.68 0.38 2 1.68 0.39
3 3.104 0.45 3 3.104 0.41 3 3.104 0.42
4 5.168 0.42 4 5.168 0.44 4 5.168 0.44
5 10.832 0.44 5 10.832 0.45 5 10.832 0.43
6 12.896 0.41 6 12.896 0.42 6 12.896 0.41
7 14.32 0.38 7 14.32 0.38 7 14.32 0.39
8 15.488 0.36 8 15.488 0.35 8 15.488 0.34
9 9 9
10 10 10
11 11 11
12 12 12
13 13 13
14 14 14
15 15 15
16 16 16
Worksheet: O2 Stratification
Client:Dominion Energy Wexpro
Location:Clay Basin ICE-1
Date:11/9/2023
PD:16
DD:36 YES Method 1 Criteria Met
UD:30 YES Method 1 Criteria Met
Port Point Insertion Depth Reading
(inches)(%)
A 1 2.66 0.00
A 2 8.00 0.00
A 3 13.33 0.00
A 4
A 5
A 6
A 7
A 8
A 9
A 10
A 11
A 12
Average 0.00
Notes: To demonstrate non-stratified flow and utilize one sampling location
O2 may not deviate by more than +/- 0.3% of the average O2 concentration.
EPA REFERENCE METHOD 3A (Determination Of Stratification)
CERTIFICATION STATEMENT
This statement certifies that “to the best of their knowledge,” based on State and Federal
regulations, operating permits, plan approvals applicable to each source or control device to be
tested, and reasonable inquiry, the source test report has been checked for completeness, and that
the results presented herein are accurate, error-free, legible, and representative of the actual
emissions measured during testing.
Waukesha L7042GSI
ICE-1
Annual Compliance Test Report
Dominion Energy Wexpro
Clay Basin Compressor Station
Daggett County, Utah
________________________________________________ _11/17/2023 _______
Charles Chapman Date
Manager of Technical Services
Oasis Emission Consultants, Inc.
________________________________________________ __________________
R. Sean Warden Date
Environmental Consultant
Dominion Energy Services, Inc.
12/19/2023