DAQ-2024-009605

DAQE-AN161690003-24

{{$d1 }}

Karen Pratt
Uinta Wax Operating, LLC
5128 Apache Plume Road, Suite 300
Fort Worth, TX 76109
[e-mail]

Dear Ms. Pratt:

Re: Approval Order: Minor Modification to Approval Order DAQE-AN161690001-23 to Add and
Update Engines
Project Number: N161690003

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on
February 20, 2024. Uinta Wax Operating, LLC must comply with the requirements of this AO, all
applicable state requirements (R307), and Federal Standards.

The project engineer for this action is Dungan Adams, who can be contacted at [phone] or
[e-mail]. Future correspondence on this AO should include the engineer's name as well
as the DAQE number shown on the upper right-hand corner of this letter. No public comments were
received on this action.

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:DA:jg

cc: TriCounty Health Department

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

July 26, 2024

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

{{#s=Sig_es_:signer1:signature}}
{{#d1=date1_es_:signer1:date:format(date, "mmmm d, yyyy")}}
{{#d2=date1_es_:signer1:date:format(date, "mmmm d, yyyy"):align(center)}}

APPROVAL ORDER
DAQE-AN161690003-24
Minor Modification to Approval Order DAQE-AN161690001-23
to Add and Update Engines

Prepared By
Dungan Adams, Engineer
[phone]
[e-mail]

Issued to
Uinta Wax Operating, LLC - Zager Booster Station

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

July 26, 2024
TABLE OF CONTENTS

TITLE/SIGNATURE PAGE ....................................................................................................... 1
GENERAL INFORMATION ...................................................................................................... 3
CONTACT/LOCATION INFORMATION ............................................................................... 3
SOURCE INFORMATION ........................................................................................................ 3
General Description ................................................................................................................ 3
NSR Classification .................................................................................................................. 3
Source Classification .............................................................................................................. 3
Applicable Federal Standards ................................................................................................. 3
Project Description.................................................................................................................. 4
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 5
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 6
PERMIT HISTORY ................................................................................................................... 11
ACRONYMS ............................................................................................................................... 12

DAQE-AN161690003-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Uinta Wax Operating, LLC Uinta Wax Operating, LLC - Zager Booster
Station

Mailing Address Physical Address
5128 Apache Plume Road, Suite 300 5.5 Miles South of Myton
Fort Worth, TX 76109 Duchesne County, UT

Source Contact UTM Coordinates
Name: Karen Pratt 579,763 m Easting
Phone: [phone],440,941 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12

SIC code 4922 (Natural Gas Transmission)

SOURCE INFORMATION
General Description
Uinta Wax Operating, LLC (Uinta) will operate a new natural gas compressor station designed to
compress 120 million standard cubic feet per day (MMscfd) of natural gas in Duchesne County. High
pressure treated gas (dehydrated, H2S removed) will enter the station and be fed to an inlet slug catcher.
Overhead gas from the inlet slug catcher will be compressed. Liquids condensed in the inlet slug catcher
and stages of compression will be routed to a three-phase separator and stored in pressurized bullet tanks
to be transported off site via pressurized trucks. Any gas off of the three-phase separator and bullet tanks
will be captured by an electric vapor recovery unit and routed to a sales line. Vapors from compressor
blowdowns and pigging venting will be controlled by a flare. Produced water and low-pressure natural
gas liquids will be stored in atmospheric storage tanks and transported off-site via trucks. All vapors from
atmospherically produced water storage tanks are controlled by a combustor.

NSR Classification
Minor Modification at Minor Source

Source Classification
Located in Uinta Basin O3 NAA
Duchesne County
Airs Source Size: B

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark Ignition Internal
DAQE-AN161690003-24
Page 4

Combustion Engines
NSPS (Part 60), OOOOb: Standards of Performance for Crude Oil and Natural Gas Facilities
for which Construction, Modification or Reconstruction Commenced After November 15, 2021
MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines

Project Description
Uinta has requested the following changes to the AO:

1. Add two (2) 1,900 horsepower (hp) compressor engines.
2. Replace the existing 118 hp emergency generator with a 249 hp generator engine.
3. Update flare, venting, and fugitive emissions to account for the new engines.

SUMMARY OF EMISSIONS

The emissions listed below are an estimate of the total potential emissions from the source. Some
rounding of emissions is possible.

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 22232 43948.00
Carbon Monoxide -31.93 43.20
Nitrogen Oxides 20.71 39.67
Particulate Matter - PM10 1.35 2.49
Particulate Matter - PM2.5 1.35 2.49
Sulfur Dioxide 0.07 0.14
Volatile Organic Compounds 22.87 52.59

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 938 1798
Acrolein (CAS #107028) 316 1036
Benzene (Including Benzene From Gasoline) (CAS #71432) 114 240
Ethyl Benzene (CAS #100414) 10 24
Formaldehyde (CAS #50000) 7280 16840
Generic HAPs (CAS #GHAPS) 200 400
Hexane (CAS #110543) 460 1100
Methanol (CAS #67561) 202 542
Toluene (CAS #108883) 72 168
Xylenes (Isomers And Mixture) (CAS #1330207) 22 58
Change (TPY) Total (TPY)
Total HAPs 4.80 11.10

DAQE-AN161690003-24
Page 5

SECTION I: GENERAL PROVISIONS

I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in
the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions
refer to those rules. [R307-101]

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

I.3 Modifications to the equipment or processes approved by this AO that could affect the
emissions covered by this AO must be reviewed and approved. [R307-401-1]

I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by
the owner/operator, shall be made available to the Director or Director's representative upon
request, and the records shall include the two-year period prior to the date of the request.
Unless otherwise specified in this AO or in other applicable state and federal rules, records
shall be kept for a minimum of two (2) years. [R307-401-8]

I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO,
including associated air pollution control equipment, in a manner consistent with good air
pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available to
the Director which may include, but is not limited to, monitoring results, opacity observations,
review of operating and maintenance procedures, and inspection of the source. All maintenance
performed on equipment authorized by this AO shall be recorded. [R307-401-4]

I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories.
[R307-150]

I.8 The owner/operator shall submit documentation of the status of construction or modification to
the Director within 18 months from the date of this AO. This AO may become invalid if
construction is not commenced within 18 months from the date of this AO or if construction is
discontinued for 18 months or more. To ensure proper credit when notifying the Director, send
the documentation to the Director, attn.: NSR Section. [R307-401-18]

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Zager Booster Station

II.A.2 Four (4) Compressor Engines (Two (2) New)
Rating: 1900 hp, each
Fuel: Natural gas
Control: OC and AFRC
Federal Subpart Applicability: NSPS Subpart JJJJ, MACT Subpart ZZZZ

DAQE-AN161690003-24
Page 6

II.A.3 One (1) Generator Engine (New)
Rating: 249 hp
Fuel: Natural gas
Control: NSCR and AFRC
Federal Subpart Applicability: NSPS Subpart JJJJ, MACT Subpart ZZZZ

II.A.4 Various Tank Heaters and Boilers
Rating: < 5 MMBtu/hr, each
Fuel: Natural gas

*Listed for informational purposes only.

II.A.5 Three (3) Atmospheric Storage Tanks
Contents: Produced water
Capacity: 1,000 bbl, each

II.A.6 Four (4) Pressurized Bullet Storage Tanks
Contents: Natural gas liquids
Capacity: 30,000 gal, each

II.A.7 One (1) Tank Combustor
Capacity: 0.82 MMBtu/hr

II.A.8 One (1) Flare (New)
Capacity: 0.28 MMBtu/hr

SECTION II: SPECIAL PROVISIONS

II.B REQUIREMENTS AND LIMITATIONS

II.B.1.a The owner/operator shall not allow the visible emissions from the following emission points to
exceed the following values:

A. The flare and combustor - no visible emissions.

B. All natural gas-operated equipment - 10% opacity.

C. All other points - 20% opacity.

[R307-401-8, R307-508-3]

II.B.1.a.1 Opacity observations of emissions from stationary sources shall be conducted in accordance with
40 CFR 60, Appendix A, Method 9. [R307-401-8]

II.B.1.b All emissions from the compressor blowdowns and pigging venting shall be routed through the
flare before being vented to the atmosphere. [R307-401-8]

II.B.1.c The owner/operator shall replace the reciprocating compressor rod packing according to 40 CFR
60, Subpart OOOOb. [40 CFR 60 Subpart OOOOb, R307-401-8]

II.B.2 Combustor/Flare Requirements
II.B.2.a The owner/operator shall only use natural gas or plant gas as fuel for each pilot light in the
combustor and the flare. [R307-401-8]

DAQE-AN161690003-24
Page 7

II.B.2.b The flare and combustor shall each operate with a continuous pilot flame and be equipped with
an auto-igniter. [R307-401-8]

II.B.2.b.1 The owner/operator shall maintain records demonstrating the date of installation and
manufacturer specifications for each auto-igniter required under R307-503-4. [R307-503-5]

II.B.2.c The owner/operator shall install a flare and a combustor that each have a manufacturer
guaranteed VOC destruction efficiency of no less than 95%. [R307-401-8]

II.B.2.c.1 To demonstrate compliance with the above condition, the owner/operator shall maintain records
of the manufacturer's emissions guarantee for the installed flare and combustor. [R307-401-8]

II.B.3 Compressor Engine Requirements
II.B.3.a The owner/operator shall only use natural gas as fuel in each compressor engine. [R307-401-8]

II.B.3.b The owner/operator shall equip each compressor engine with an air-to-fuel ratio controller
(AFRC) and an oxidation catalyst (OC). [R307-401-8]

II.B.4 Stack Testing Requirements
II.B.4.a The owner/operator shall not emit more than the following rates and concentrations from each
1900-hp Compressor Engine:

Pollutant lb/hr
NOx 2.09
CO 2.09
VOC 2.51

[R307-401-8]

II.B.4.a.1 Initial Test
The owner/operator shall conduct an initial stack test on the emission unit within 180 days after
startup of the emission unit. [R307-165-2]

II.B.4.a.2 Compliance Demonstration
To demonstrate compliance with the emission limitations above, the owner/operator shall
perform stack testing on the emissions unit according to the stack testing conditions contained in
this AO. [R307-165-2, R307-401-8]

II.B.4.a.3 Test Frequency
To demonstrate compliance with the NOx, CO, and VOC limits, the owner/operator shall conduct
a stack test on each emission unit within 8,760 hours or 3 years, whichever comes first, after the
date of the most recent stack test of each emission unit. The Director may require the
owner/operator to perform a stack test at any time. [R307-165-2, R307-401-8]

II.B.4.b The owner/operator shall conduct any stack testing required by this AO according to the
following conditions. [R307-401-8]

II.B.4.b.1 Notification
At least 30 days prior to conducting a stack test, the owner/operator shall submit a source test
protocol to the Director. The source test protocol shall include the items contained in
R307-165-3. If directed by the Director, the owner/operator shall attend a pretest conference.
[R307-165-3, R307-401-8]

II.B.4.b.2 Testing and Test Conditions
The owner/operator shall conduct testing according to the approved source test protocol and
according to the test conditions contained in R307-165-4. [R307-165-4, R307-401-8]

DAQE-AN161690003-24
Page 8

II.B.4.b.3 Access
The owner/operator shall provide Occupational Safety and Health Administration (OSHA)- or
Mine Safety and Health Administration (MSHA)-approved access to the test location.
[R307-401-8]

II.B.4.b.4 Reporting
No later than 60 days after completing a stack test, the owner/operator shall submit a written
report of the results from the stack testing to the Director. The report shall include validated
results and supporting information. [R307-165-5, R307-401-8]

II.B.4.b.5 Possible Rejection of Test Results
The Director may reject stack testing results if the test did not follow the approved source test
protocol or for a reason specified in R307-165-6. [R307-165-6, R307-401-8]

II.B.4.b.6 Standard Conditions

A. Temperature - 68 degrees Fahrenheit (293 K).

B. Pressure - 29.92 in Hg (101.3 kPa).

C. Averaging Time - As specified in the applicable test method.

[40 CFR 60 Subpart A, 40 CFR 63 Subpart A, R307-401-8]

II.B.4.b.7 NOx
40 CFR 60, Appendix A, Method 7; Method 7E; or other EPA-approved testing method as
acceptable to the Director. [R307-401-8]

II.B.4.b.8 VOC
40 CFR 60, Appendix A, Method 18; Method 25; Method 25A; 40 CFR 63, Appendix A,
Method 320; or other EPA-approved testing method as acceptable to the Director. [R307-401-8]

II.B.4.b.9 CO
40 CFR 60, Appendix A, Method 10, or other EPA-approved testing method as acceptable to the
Director. [R307-401-8]

II.B.5 Natural Gas-Fired Generator Engine Requirements
II.B.5.a The owner/operator shall install a 249-hp generator engine equipped with an AFRC and a non-
selective catalytic reduction (NSCR) device. [R307-401-8]

II.B.5.b The 249-hp generator engine shall be certified to meet the following emission rates specified in
40 CFR 60 Subpart JJJJ for non-emergency spark-ignition natural gas-fired engines
manufactured after January 1, 2011:

NOx 1.0 g/hp-hr
CO 2.0 g/hp-hr
VOC 0.7 g/hp-hr

[40 CFR 60 Subpart JJJJ, R307-401-8]

II.B.5.b.1 The owner/operator shall keep a record of the manufacturer's certification of the NOx, CO, and
VOC emission rates. The record shall be kept for the life of the equipment. [R307-401-8]

II.B.5.b.2 The owner/operator shall conduct all operation and maintenance for the 249-hp generator engine
according to the manufacturer's recommendations. [R307-401-8]

DAQE-AN161690003-24
Page 9

II.B.5.c The owner/operator shall only use natural gas as fuel for the 249-hp generator engine on site.
[R307-401-8]

II.B.6 Atmospheric Produced Water Storage Tank (Storage Vessel) Requirements
II.B.6.a The owner/operator shall not produce more than 18,250 barrels (1 barrel = 42 gallons) of
produced water per rolling 12-month period. [R307-401-8]

II.B.6.a.1 The owner/operator shall:

A. Determine produced water production with process flow meters and/or sales records.

B. Record produced water production on a monthly basis.

C. Use the monthly production data reported to the Utah Division of Oil, Gas, and Mining
to calculate a new 12-month total by the 20th day of each month using data from the
previous 12 months.

D. Keep the production records for all periods the plant is in operation.

[R307-401-8]

II.B.6.b The owner/operator shall route all gases, vapors, and fumes from the produced water storage
tanks on site to the operating combustor. [R307-401-8]

II.B.6.c The owner/operator shall keep the storage tank thief hatches and other tank openings closed and
sealed except during tank unloading or other maintenance activities. [R307-401-8]

II.B.7 Truck Loading Requirements
II.B.7.a The owner/operator shall load the atmospheric tank trucks on site by the use of bottom filling or
a submerged fill pipe. [R307-401-8, R307-504]

II.B.8 Monitoring Requirements of Fugitive Emissions (Leak Detection and Repair)
II.B.8.a The owner/operator shall develop a fugitive emissions monitoring plan. At a minimum, the plan
shall include:

A. Monitoring frequency.

B. Monitoring technique and equipment.

C. Procedures and timeframes for identifying and repairing leaks.

D. Recordkeeping practices.

E. Calibration and maintenance procedures.

[R307-401-8]

II.B.8.a.1 The plan shall address monitoring for "difficult-to-monitor" and "unsafe-to-monitor"
components. [R307-401-8]

DAQE-AN161690003-24
Page 10

II.B.8.b The owner/operator shall conduct monitoring surveys on site to observe each "fugitive emissions
component" for "fugitive emissions."

A. "Fugitive emissions component" means any component that has the potential to emit
fugitive emissions of VOC, including but not limited to valves, connectors, pressure
relief devices, open-ended lines, flanges, covers, and closed vent systems, thief
hatches or other openings, compressors, instruments, and meters.

B. "Fugitive emissions" are considered any visible emissions observed using optical gas
imaging or a Method 21 instrument reading of 500 ppm or greater.

[R307-401-8]

II.B.8.b.1 Monitoring surveys shall be conducted according to the following schedule:

A. No later than 60 days after startup of production, as defined in 40 CFR 60.5430b.

B. Semiannually after the initial monitoring survey. Consecutive semiannual monitoring
surveys shall be conducted at least 4 months apart.

C. Annually after the initial monitoring survey for "difficult-to-monitor" components.

D. As required by the owner/operator's monitoring plan for "unsafe-to-monitor"
components.

[R307-401-8]

II.B.8.b.2 Monitoring surveys shall be conducted using one or both of the following to detect fugitive
emissions:

A. Optical gas imaging (OGI) equipment. OGI equipment shall be capable of imaging
gases in the spectral range for the compound of highest concentration in the potential
fugitive emissions.

B. Monitoring equipment that meets U.S. EPA Method 21, 40 CFR Part 60, Appendix A.

[R307-401-8]

II.B.8.c If fugitive emissions are detected at any time, the owner/operator shall repair the fugitive
emissions component as soon as possible, but no later than 15 calendar days after detection.

If the repair or replacement is technically infeasible, would require a vent blowdown, a well
shutdown, or well shut-in, or would be unsafe to repair during operation of the unit, the repair or
replacement must be completed during the next well shutdown, well shut-in, after an
unscheduled, planned, or emergency vent blowdown, or within 24 months, whichever is earlier.

[R307-401-8]

II.B.8.c.1 The owner/operator shall resurvey the repaired or replaced fugitive emissions component no later
than 30 calendar days after the fugitive emissions component was repaired. [R307-401-8]

II.B.8.d The owner/operator shall maintain records of the fugitive emissions monitoring plan, monitoring
surveys, repairs, and resurveys. [R307-401-8]

DAQE-AN161690003-24
Page 11

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents:

Supersedes AO DAQE-AN161690001-23 dated December 13, 2023
Is Derived From NOI dated February 20, 2024
Incorporates Additional Information dated April 11, 2024

DAQE-AN161690003-24
Page 12

ACRONYMS

The following lists commonly used acronyms and associated translations as they apply to this document:

40 CFR Title 40 of the Code of Federal Regulations
AO Approval Order
BACT Best Available Control Technology
CAA Clean Air Act
CAAA Clean Air Act Amendments
CDS Classification Data System (used by Environmental Protection Agency to classify
sources by size/type)
CEM Continuous emissions monitor
CEMS Continuous emissions monitoring system
CFR Code of Federal Regulations
CMS Continuous monitoring system
CO Carbon monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent - Title 40 of the Code of Federal Regulations Part 98,
Subpart A, Table A-1
COM Continuous opacity monitor
DAQ/UDAQ Division of Air Quality
DAQE This is a document tracking code for internal Division of Air Quality use
EPA Environmental Protection Agency
FDCP Fugitive dust control plan
GHG Greenhouse Gas(es) - Title 40 of the Code of Federal Regulations 52.21 (b)(49)(i)
GWP Global Warming Potential - Title 40 of the Code of Federal Regulations Part 86.1818-
12(a)
HAP or HAPs Hazardous air pollutant(s)
ITA Intent to Approve
LB/YR Pounds per year
MACT Maximum Achievable Control Technology
MMBTU Million British Thermal Units
NAA Nonattainment Area
NAAQS National Ambient Air Quality Standards
NESHAP National Emission Standards for Hazardous Air Pollutants
NOI Notice of Intent
NOx Oxides of nitrogen
NSPS New Source Performance Standard
NSR New Source Review
PM10 Particulate matter less than 10 microns in size
PM2.5 Particulate matter less than 2.5 microns in size
PSD Prevention of Significant Deterioration
PTE Potential to Emit
R307 Rules Series 307
R307-401 Rules Series 307 - Section 401
SO2 Sulfur dioxide
Title IV Title IV of the Clean Air Act
Title V Title V of the Clean Air Act
TPY Tons per year
UAC Utah Administrative Code
VOC Volatile organic compounds

DAQE-IN161690003-24

June 13, 2024

Karen Pratt
Uinta Wax Operating, LLC
5128 Apache Plume Road, Suite 300
Fort Worth, TX 76109
[e-mail]

Dear Ms. Pratt:

Re: Intent to Approve: Minor Modification to Approval Order DAQE-AN161690001-23 to Add and
Update Engines
Project Number: N161690003

The attached document is the Intent to Approve (ITA) for the above-referenced project. The ITA is
subject to public review. Any comments received shall be considered before an Approval Order (AO) is
issued. The Division of Air Quality is authorized to charge a fee for reimbursement of the actual costs
incurred in the issuance of an AO. An invoice will follow upon issuance of the final AO.

Future correspondence on this ITA should include the engineer's name, Dungan Adams, as well as the
DAQE number as shown on the upper right-hand corner of this letter. Dungan Adams, can be reached at
[phone] or [e-mail], if you have any questions.

Sincerely,

{{$s }}

Alan D. Humpherys, Manager
New Source Review Section

ADH:DA:jg

cc: TriCounty Health Department

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

INTENT TO APPROVE
DAQE-IN161690003-24
Minor Modification to Approval Order DAQE-AN161690001-23
to Add and Update Engines

Prepared By
Dungan Adams, Engineer
[phone]
[e-mail]

Issued to
Uinta Wax Operating, LLC - Zager Booster Station

Issued On
June 13, 2024

{{$s }}

New Source Review Section Manager
Alan D. Humpherys
{{#s=Sig_es_:signer1:signature}}

TABLE OF CONTENTS

TITLE/SIGNATURE PAGE ....................................................................................................... 1
GENERAL INFORMATION ...................................................................................................... 3
CONTACT/LOCATION INFORMATION ............................................................................... 3
SOURCE INFORMATION ........................................................................................................ 3
General Description ................................................................................................................ 3
NSR Classification .................................................................................................................. 3
Source Classification .............................................................................................................. 3
Applicable Federal Standards ................................................................................................. 3
Project Description.................................................................................................................. 4
SUMMARY OF EMISSIONS .................................................................................................... 4
PUBLIC NOTICE STATEMENT............................................................................................... 5
SECTION I: GENERAL PROVISIONS .................................................................................... 5
SECTION II: PERMITTED EQUIPMENT .............................................................................. 6
SECTION II: SPECIAL PROVISIONS ..................................................................................... 7
PERMIT HISTORY ................................................................................................................... 11
ACRONYMS ............................................................................................................................... 12

DAQE-IN161690003-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Uinta Wax Operating, LLC Uinta Wax Operating, LLC - Zager Booster
Station

Mailing Address Physical Address
5128 Apache Plume Road, Suite 300 5.5 Miles South of Myton
Fort Worth, TX 76109 Duchesne County, UT

Source Contact UTM Coordinates
Name: Karen Pratt 579,763 m Easting
Phone: [phone],440,941 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12

SIC code 4922 (Natural Gas Transmission)

SOURCE INFORMATION
General Description
Uinta Wax Operating, LLC (Uinta) will operate a new natural gas compressor station designed to
compress 120 million standard cubic feet per day (MMscfd) of natural gas in Duchesne County. High
pressure treated gas (dehydrated, H2S removed) will enter the station and be fed to an inlet slug catcher.
Overhead gas from the inlet slug catcher will be compressed. Liquids condensed in the inlet slug catcher
and stages of compression will be routed to a three-phase separator and stored in pressurized bullet tanks
to be transported off site via pressurized trucks. Any gas off of the three-phase separator and bullet tanks
will be captured by an electric vapor recovery unit and routed to a sales line. Vapors from compressor
blowdowns and pigging venting will be controlled by a flare. Produced water and low-pressure natural
gas liquids will be stored in atmospheric storage tanks and transported off-site via trucks. All vapors from
atmospherically produced water storage tanks are controlled by a combustor.
NSR Classification
Minor Modification at Minor Source

Source Classification
Located in Uinta Basin O3 NAA
Duchesne County
Airs Source Size: B

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark Ignition Internal
Combustion Engines
DAQE-IN161690003-24
Page 4

NSPS (Part 60), OOOOb: Standards of Performance for Crude Oil and Natural Gas Facilities
for which Construction, Modification or Reconstruction Commenced After December 6, 2022
MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines

Project Description
Uinta Wax has requested the following changes to the AO:

1. Add two (2) 1,900 horsepower (hp) compressor engines.
2. Replace the existing 118-hp emergency generator with a 249-hp generator engine.
3. Update flare, venting, and fugitive emissions to account for the new engines.

SUMMARY OF EMISSIONS

The emissions listed below are an estimate of the total potential emissions from the source. Some
rounding of emissions is possible.

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 22232 43948.00
Carbon Monoxide -31.93 43.20
Nitrogen Oxides 20.71 39.67
Particulate Matter - PM10 1.35 2.49
Particulate Matter - PM2.5 1.35 2.49
Sulfur Dioxide 0.07 0.14
Volatile Organic Compounds 22.87 52.59

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 938 1798
Acrolein (CAS #107028) 316 1036
Benzene (Including Benzene From Gasoline) (CAS #71432) 114 240
Ethyl Benzene (CAS #100414) 10 24
Formaldehyde (CAS #50000) 7280 16840
Generic HAPs (CAS #GHAPS) 200 400
Hexane (CAS #110543) 460 1100
Methanol (CAS #67561) 202 542
Toluene (CAS #108883) 72 168
Xylenes (Isomers And Mixture) (CAS #1330207) 22 58
Change (TPY) Total (TPY)
Total HAPs 4.80 11.10

DAQE-IN161690003-24
Page 5

PUBLIC NOTICE STATEMENT

The NOI for the above-referenced project has been evaluated and has been found to be consistent with the
requirements of UAC R307. Air pollution producing sources and/or their air control facilities may not be
constructed, installed, established, or modified prior to the issuance of an AO by the Director.

A 30-day public comment period will be held in accordance with UAC R307-401-7. A notification of the
intent to approve will be published in the Uintah Basin Standard on June 19, 2024. During the public
comment period the proposal and the evaluation of its impact on air quality will be available for the
public to review and provide comment. If anyone so requests a public hearing within 15 days of
publication, it will be held in accordance with UAC R307-401-7. The hearing will be held as close as
practicable to the location of the source. Any comments received during the public comment period and
the hearing will be evaluated. The proposed conditions of the AO may be changed as a result of the
comments received.

SECTION I: GENERAL PROVISIONS

The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the AO.

I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in
the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions
refer to those rules. [R307-101]

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

I.3 Modifications to the equipment or processes approved by this AO that could affect the
emissions covered by this AO must be reviewed and approved. [R307-401-1]

I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by
the owner/operator, shall be made available to the Director or Director's representative upon
request, and the records shall include the two-year period prior to the date of the request.
Unless otherwise specified in this AO or in other applicable state and federal rules, records
shall be kept for a minimum of two (2) years. [R307-401-8]

I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO,
including associated air pollution control equipment, in a manner consistent with good air
pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available to
the Director which may include, but is not limited to, monitoring results, opacity observations,
review of operating and maintenance procedures, and inspection of the source. All maintenance
performed on equipment authorized by this AO shall be recorded. [R307-401-4]

I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories.
[R307-150]

DAQE-IN161690003-24
Page 6

I.8 The owner/operator shall submit documentation of the status of construction or modification to
the Director within 18 months from the date of this AO. This AO may become invalid if
construction is not commenced within 18 months from the date of this AO or if construction is
discontinued for 18 months or more. To ensure proper credit when notifying the Director, send
the documentation to the Director, attn.: NSR Section. [R307-401-18]

SECTION II: PERMITTED EQUIPMENT

The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the AO.

II.A THE APPROVED EQUIPMENT

II.A.1 Zager Booster Station

II.A.2 Four (4) Compressor Engines (Two (2) New)
Rating: 1900 hp, each
Fuel: Natural gas
Control: OC and AFRC
Federal Subpart Applicability: NSPS Subpart JJJJ, MACT Subpart ZZZZ

II.A.3 One (1) Generator Engine (New)
Rating: 249 hp
Fuel: Natural gas
Control: NSCR and AFRC
Federal Subpart Applicability: NSPS Subpart JJJJ, MACT Subpart ZZZZ

II.A.4 Various Tank Heaters and Boilers
Rating: < 5 MMBtu/hr, each
Fuel: Natural gas

*Listed for informational purposes only

II.A.5 Three (3) Atmospheric Storage Tanks
Contents: Produced water
Capacity: 1,000 bbl, each

II.A.6 Four (4) Pressurized Bullet Storage Tanks
Contents: Natural gas liquids
Capacity: 30,000 gal, each

II.A.7 One (1) Tank Combustor
Capacity: 0.82 MMBtu/hr

II.A.8 One (1) Flare (New)
Capacity: 0.28 MMBtu/hr

DAQE-IN161690003-24
Page 7

SECTION II: SPECIAL PROVISIONS

The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the AO.

II.B REQUIREMENTS AND LIMITATIONS

II.B.1.a The owner/operator shall not allow the visible emissions from the following emission points to
exceed the following values:

A. The flare and combustor - no visible emissions.

B. All-natural gas-operated equipment - 10% opacity.

C. All other points - 20% opacity.

[R307-401-8, R307-508-3]

II.B.1.a.1 Opacity observations of emissions from stationary sources shall be conducted in accordance with
40 CFR 60, Appendix A, Method 9. [R307-401-8]

II.B.1.b All emissions from the compressor blowdowns and pigging venting shall be routed through the
flare before being vented to the atmosphere. [R307-401-8]

II.B.1.c The owner/operator shall replace the reciprocating compressor rod packing according to 40 CFR
60, Subpart OOOOb. [40 CFR 60 Subpart OOOOb, R307-401-8]

II.B.2 Combustor/Flare Requirements
II.B.2.a The owner/operator shall only use natural gas or plant gas as fuel for each pilot light in the
combustor and the flare. [R307-401-8]

II.B.2.b The flare and combustor shall each operate with a continuous pilot flame and be equipped with
an auto-igniter. [R307-401-8]

II.B.2.b.1 The owner/operator shall maintain records demonstrating the date of installation and
manufacturer specifications for each auto-igniter required under R307-503-4. [R307-503-5]

II.B.2.c The owner/operator shall install a flare and a combustor that each have a manufacturer
guaranteed VOC destruction efficiency of no less than 95%. [R307-401-8]

II.B.2.c.1 To demonstrate compliance with the above condition, the owner/operator shall maintain records
of the manufacturer's emissions guarantee for the installed flare and combustor. [R307-401-8]

II.B.3 Compressor Engine Requirements
II.B.3.a The owner/operator shall only use natural gas as fuel in each compressor engine. [R307-401-8]

II.B.3.b The owner/operator shall equip each compressor engine with an air-to-fuel ratio controller
(AFRC) and an oxidation catalyst (OC). [R307-401-8]

DAQE-IN161690003-24
Page 8

II.B.4 Stack Testing Requirements
II.B.4.a The owner/operator shall not emit more than the following rates and concentrations from each
1900-hp Compressor Engine:

Pollutant lb/hr
NOx 2.09
CO 2.09
VOC 2.51

[R307-401-8]

II.B.4.a.1 Initial Test
The owner/operator shall conduct an initial stack test on the emission unit within 180 days after
startup of the emission unit. [R307-165-2]

II.B.4.a.2 Compliance Demonstration
To demonstrate compliance with the emission limitations above, the owner/operator shall
perform stack testing on the emissions unit according to the stack testing conditions contained in
this AO. [R307-165-2, R307-401-8]

II.B.4.a.3 Test Frequency
To demonstrate compliance with the NOx, CO, and VOC limits, the owner/operator shall conduct
a stack test on each emission unit within 8,760 hours or 3 years, whichever comes first, after the
date of the most recent stack test of each emission unit. The Director may require the
owner/operator to perform a stack test at any time. [R307-165-2, R307-401-8]

II.B.4.b The owner/operator shall conduct any stack testing required by this AO according to the
following conditions. [R307-401-8]

II.B.4.b.1 Notification
At least 30 days prior to conducting a stack test, the owner/operator shall submit a source test
protocol to the Director. The source test protocol shall include the items contained in
R307-165-3. If directed by the Director, the owner/operator shall attend a pretest conference.
[R307-165-3, R307-401-8]

II.B.4.b.2 Testing and Test Conditions
The owner/operator shall conduct testing according to the approved source test protocol and
according to the test conditions contained in R307-165-4. [R307-165-4, R307-401-8]

II.B.4.b.3 Access
The owner/operator shall provide Occupational Safety and Health Administration (OSHA)- or
Mine Safety and Health Administration (MSHA)-approved access to the test location.
[R307-401-8]

II.B.4.b.4 Reporting
No later than 60 days after completing a stack test, the owner/operator shall submit a written
report of the results from the stack testing to the Director. The report shall include validated
results and supporting information. [R307-165-5, R307-401-8]

II.B.4.b.5 Possible Rejection of Test Results
The Director may reject stack testing results if the test did not follow the approved source test
protocol or for a reason specified in R307-165-6. [R307-165-6, R307-401-8]

DAQE-IN161690003-24
Page 9

II.B.4.b.6 Standard Conditions

A. Temperature - 68 degrees Fahrenheit (293 K).

B. Pressure - 29.92 in Hg (101.3 kPa).

C. Averaging Time - As specified in the applicable test method.

[40 CFR 60 Subpart A, 40 CFR 63 Subpart A, R307-401-8]

II.B.4.b.7 NOx
40 CFR 60, Appendix A, Method 7; Method 7E; or other EPA-approved testing method as
acceptable to the Director. [R307-401-8]

II.B.4.b.8 VOC
40 CFR 60, Appendix A, Method 18; Method 25; Method 25A; 40 CFR 63, Appendix A,
Method 320; or other EPA-approved testing method as acceptable to the Director. [R307-401-8]

II.B.4.b.9 CO
40 CFR 60, Appendix A, Method 10, or other EPA-approved testing method as acceptable to the
Director. [R307-401-8]

II.B.5 Natural Gas-Fired Generator Engine Requirements
II.B.5.a The owner/operator shall install a 249-hp generator engine equipped with an air-to-fuel ratio
controller (AFRC) and a non-selective catalytic reduction (NSCR) device. [R307-401-8]

II.B.5.b The 249 hp generator engine shall be certified to meet the following emission rates specified in
40 CFR 60 Subpart JJJJ for non-emergency spark-ignition natural gas-fired engines
manufactured after January 1, 2011:

NOx 1.0 g/hp-hr
CO 2.0 g/hp-hr
VOC 0.7 g/hp-hr

[40 CFR 60 Subpart JJJJ, R307-401-8]

II.B.5.b.1 The owner/operator shall keep a record of the manufacturer's certification of the NOx, CO, and
VOC emission rates. The record shall be kept for the life of the equipment. [R307-401-8]

II.B.5.b.2 The owner/operator shall conduct all operation and maintenance for the 249 hp generator engine
according to the manufacturer's recommendations. [R307-401-8]

II.B.5.c The owner/operator shall only use natural gas as fuel for the 249 hp generator engine on site.
[R307-401-8]

II.B.6 Atmospheric Produced Water Storage Tank (Storage Vessel) Requirements
II.B.6.a The owner/operator shall not produce more than 18,250 barrels (1 barrel = 42 gallons) of
produced water per rolling 12-month period. [R307-401-8]

DAQE-IN161690003-24
Page 10

II.B.6.a.1 The owner/operator shall:

A. Determine produced water production with process flow meters
and/or sales records.

B. Record produced water production on a monthly basis.

C. Use the monthly production data reported to the Utah Division of Oil, Gas,
and Mining to calculate a new 12-month total by the 20th day of each month
using data from the previous 12 months.

D. Keep the production records for all periods the plant is in operation.

[R307-401-8]

II.B.6.b The owner/operator shall route all gases, vapors, and fumes from the produced water storage
tanks on site to the operating combustor. [R307-401-8]

II.B.6.c The owner/operator shall keep the storage tank thief hatches and other tank openings closed and
sealed, except during tank unloading or other maintenance activities. [R307-401-8]

II.B.7 Truck Loading Requirements
II.B.7.a The owner/operator shall load the atmospheric tank trucks on site by the use of bottom filling or
a submerged fill pipe. [R307-401-8, R307-504]

II.B.8 Monitoring Requirements of Fugitive Emissions (Leak Detection and Repair)
II.B.8.a The owner/operator shall develop a fugitive emissions monitoring plan. At a minimum, the plan
shall include:

A. Monitoring frequency.

B. Monitoring technique and equipment.

C. Procedures and timeframes for identifying and repairing leaks.

D. Recordkeeping practices.

E. Calibration and maintenance procedures.

[R307-401-8]

II.B.8.a.1 The plan shall address monitoring for "difficult-to-monitor" and "unsafe-to-monitor"
components. [R307-401-8]

II.B.8.b The owner/operator shall conduct monitoring surveys on site to observe each "fugitive emissions
component" for "fugitive emissions."

A. "Fugitive emissions component" means any component that has the potential to
emit fugitive emissions of VOC, including but not limited to valves, connectors,
pressure relief devices, open-ended lines, flanges, covers, and closed vent
systems, thief hatches or other openings, compressors, instruments, and meters.

B. "Fugitive emissions" are considered any visible emissions observed using optical
gas imaging or a Method 21 instrument reading of 500 ppm or greater.

[R307-401-8]

DAQE-IN161690003-24
Page 11

II.B.8.b.1 Monitoring surveys shall be conducted according to the following schedule:

A. No later than 60 days after startup of production, as defined in 40 CFR
60.5430b.

B. Semiannually after the initial monitoring survey. Consecutive semiannual
monitoring surveys shall be conducted at least 4 months apart.

C. Annually after the initial monitoring survey for "difficult-to-monitor"
components.

D. As required by the owner/operator's monitoring plan for "unsafe-to-monitor"
components.

[R307-401-8]

II.B.8.b.2 Monitoring surveys shall be conducted using one (1) or both of the following to detect fugitive
emissions:

A. Optical gas imaging (OGI) equipment. OGI equipment shall be capable of
imaging gases in the spectral range for the compound of highest concentration in
the potential fugitive emissions.

B. Monitoring equipment that meets U.S. EPA Method 21, 40 CFR Part 60,
Appendix A.

[R307-401-8]

II.B.8.c If fugitive emissions are detected at any time, the owner/operator shall repair the fugitive
emissions component as soon as possible, but no later than 15 calendar days after detection.

If the repair or replacement is technically infeasible, would require a vent blowdown, a well
shutdown, or well shut-in, or would be unsafe to repair during operation of the unit, the repair or
replacement must be completed during the next well shutdown, well shut-in, after an
unscheduled, planned, or emergency vent blowdown, or within 24 months, whichever is earlier.

[R307-401-8]

II.B.8.c.1 The owner/operator shall resurvey the repaired or replaced fugitive emissions component no later
than 30 calendar days after the fugitive emissions component was repaired. [R307-401-8]

II.B.8.d The owner/operator shall maintain records of the fugitive emissions monitoring plan, monitoring
surveys, repairs, and resurveys. [R307-401-8]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents:

Supersedes AO DAQE-AN161960001-23 dated December 13, 2023
Is Derived From NOI dated February 20, 2024
Incorporates Additional Information dated April 11, 2024

DAQE-IN161690003-24
Page 12

ACRONYMS

The following lists commonly used acronyms and associated translations as they apply to this document:

40 CFR Title 40 of the Code of Federal Regulations
AO Approval Order
BACT Best Available Control Technology
CAA Clean Air Act
CAAA Clean Air Act Amendments
CDS Classification Data System (used by Environmental Protection Agency to classify
sources by size/type)
CEM Continuous emissions monitor
CEMS Continuous emissions monitoring system
CFR Code of Federal Regulations
CMS Continuous monitoring system
CO Carbon monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent - Title 40 of the Code of Federal Regulations Part 98,
Subpart A, Table A-1
COM Continuous opacity monitor
DAQ/UDAQ Division of Air Quality
DAQE This is a document tracking code for internal Division of Air Quality use
EPA Environmental Protection Agency
FDCP Fugitive dust control plan
GHG Greenhouse Gas(es) - Title 40 of the Code of Federal Regulations 52.21 (b)(49)(i)
GWP Global Warming Potential - Title 40 of the Code of Federal Regulations Part 86.1818-
12(a)
HAP or HAPs Hazardous air pollutant(s)
ITA Intent to Approve
LB/YR Pounds per year
MACT Maximum Achievable Control Technology
MMBTU Million British Thermal Units
NAA Nonattainment Area
NAAQS National Ambient Air Quality Standards
NESHAP National Emission Standards for Hazardous Air Pollutants
NOI Notice of Intent
NOx Oxides of nitrogen
NSPS New Source Performance Standard
NSR New Source Review
PM10 Particulate matter less than 10 microns in size
PM2.5 Particulate matter less than 2.5 microns in size
PSD Prevention of Significant Deterioration
PTE Potential to Emit
R307 Rules Series 307
R307-401 Rules Series 307 - Section 401
SO2 Sulfur dioxide
Title IV Title IV of the Clean Air Act
Title V Title V of the Clean Air Act
TPY Tons per year
UAC Utah Administrative Code
VOC Volatile organic compounds

Uintah Basin Standard
Publication Name:
Uintah Basin Standard
Publication URL:
Publication City and State:
Roosevelt, UT
Publication County:
Duchesne
Notice Popular Keyword Category:
Notice Keywords:
uinta wax operating
Notice Authentication Number:
202406190950216267829
1761527914
Notice URL:
Back
Notice Publish Date:
Wednesday, June 19, 2024
Notice Content
NOTICE A Notice of Intent for the following project submitted in accordance with R307-401-1, Utah Administrative Code (UAC), has been
received for consideration by the Director: Company Name: Location: Uinta Wax Operating, LLC Uinta Wax Operating, LLC - Zager Booster
Station - 5.5 Miles South of Myton, Duchesne County, UT Project Description: Uinta Wax Operating, LLC (Uinta) will operate a new natural
gas compressor station designed to compress 120 million standard cubic feet per day (MMscfd) of natural gas in Duchesne County. High-
pressure treated gas (dehydrated, H₂S removed) will enter the station and be fed to an inlet slug catcher. Overhead gas from the inlet slug
catcher will be compressed. Liquids condensed in the inlet slug catcher and stages of compression will be routed to a three-phase separator
and stored in pressurized bullet tanks to be transported off site via pressurized trucks. Any gas off of the three-phase separator and bullet
tanks will be captured by an electric vapor recovery unit and routed to a sales line. Vapors from compressor blowdowns and pigging venting
will be controlled by a flare. Produced water and low-pressure natural gas liquids will be stored in atmospheric storage tanks and transported
off-site via trucks. All vapors from atmospherically produced water storage tanks are controlled by a combustor. The source has requested to
add two (2) 1,900 horsepower (hp) compressor engines, replace the existing 118 hp emergency generator with a 249 hp generator engine,
and update flare, venting, and fugitive emissions to account for the new engines. The completed engineering evaluation and air quality
impact analysis showed the proposed project meets the requirements of federal air quality regulations and the State air quality rules. The
Director intends to issue an Approval Order pending a 30-day public comment period. The project proposal, estimate of the effect on local air
quality and draft Approval Order are available for public inspection and comment at the Utah Division of Air Quality, 195 North 1950 West,
Salt Lake City, UT 84116. Written comments received by the Division at this same address on or before July 19, 2024, will be considered in
making the final decision on the approval/disapproval of the proposed project. Email comments will also be accepted at
[e-mail]. If anyone so requests to the Director in writing within 15 days of publication of this notice, a hearing will be held in
accordance with R307-401-7, UAC. Under Section 19-1-301.5, a person who wishes to challenge a Permit Order may only raise an issue or
argument during an adjudicatory proceeding that was raised during the public comment period and was supported with sufficient information
or documentation to enable the Director to fully consider the substance and significance of the issue. Date of Notice: June 19, 2024
Published in the Uintah Basin Standard June 19, 2024 ######
Back

DAQE-NN161690003-24

June 13, 2024

Uintah Basin Standard
Legal Advertising Department
268 South 200 East
Roosevelt, UT 84066

RE: Legal Notice of Intent to Approve

This letter will confirm the authorization to publish the attached NOTICE in the Uintah Basin Standard
(Account Number: 3207) on June 19, 2024.

Please mail the invoice and affidavit of publication to the Utah State Department of Environmental
Quality, Division of Air Quality, P.O. Box 144820, Salt Lake City, Utah 84114-4820. If you have any
questions, contact Jeree Greenwood, who may be reached at [phone].

Sincerely,

{{$s }}

Jeree Greenwood
Office Technician

Enclosure

cc: Uintah Basin Association of Governments
cc: Duchesne County

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

DAQE-NN161690003-24
Page 2
NOTICE

A Notice of Intent for the following project submitted in accordance with R307-401-1, Utah
Administrative Code (UAC), has been received for consideration by the Director:

Company Name: Uinta Wax Operating, LLC
Location: Uinta Wax Operating, LLC - Zager Booster Station – 5.5 Miles South of Myton,
Duchesne County, UT
Project Description: Uinta Wax Operating, LLC (Uinta) will operate a new natural gas compressor
station designed to compress 120 million standard cubic feet per day (MMscfd)
of natural gas in Duchesne County. High-pressure treated gas (dehydrated, H2S
removed) will enter the station and be fed to an inlet slug catcher. Overhead gas
from the inlet slug catcher will be compressed. Liquids condensed in the inlet
slug catcher and stages of compression will be routed to a three-phase separator
and stored in pressurized bullet tanks to be transported off site via pressurized
trucks. Any gas off of the three-phase separator and bullet tanks will be captured
by an electric vapor recovery unit and routed to a sales line. Vapors from
compressor blowdowns and pigging venting will be controlled by a flare.
Produced water and low-pressure natural gas liquids will be stored in
atmospheric storage tanks and transported off-site via trucks. All vapors from
atmospherically produced water storage tanks are controlled by a combustor. The
source has requested to add two (2) 1,900 horsepower (hp) compressor engines,
replace the existing 118 hp emergency generator with a 249 hp generator engine,
and update flare, venting, and fugitive emissions to account for the new engines.

The completed engineering evaluation and air quality impact analysis showed the proposed project meets
the requirements of federal air quality regulations and the State air quality rules. The Director intends to
issue an Approval Order pending a 30-day public comment period. The project proposal, estimate of the
effect on local air quality and draft Approval Order are available for public inspection and comment at the
Utah Division of Air Quality, 195 North 1950 West, Salt Lake City, UT 84116. Written comments
received by the Division at this same address on or before July 19, 2024, will be considered in making the
final decision on the approval/disapproval of the proposed project. Email comments will also be accepted
at [e-mail]. If anyone so requests to the Director in writing within 15 days of publication
of this notice, a hearing will be held in accordance with
R307-401-7, UAC.

Under Section 19-1-301.5, a person who wishes to challenge a Permit Order may only raise an issue or
argument during an adjudicatory proceeding that was raised during the public comment period and was
supported with sufficient information or documentation to enable the Director to fully consider the
substance and significance of the issue.

Date of Notice: June 19, 2024

{{#s=Sig_es_:signer1:signature}}

DAQE-

RN161690003
May 2, 2024

Karen Pratt
Uinta Wax Operating, LLC
5128 Apache Plume Road, Suite 300
Fort Worth, TX 76109
[e-mail]

Dear Karen Pratt,

Re: Engineer Review:
Minor Modification to Add and Update Equipment
Project Number: N161690003

The DAQ requests a company representative review and sign the attached Engineer Review (ER). This
ER identifies all applicable elements of the New Source Review permitting program. Uinta Wax
Operating, LLC should complete this review within 10 business days of receipt.

Uinta Wax Operating, LLC should contact Dungan Adams at [phone] if there are questions or
concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email
Dungan Adams at [e-mail] the signed cover letter. Upon receipt of the signed cover
letter, the DAQ will prepare an ITA for a 30-day public comment period. At the completion of the
comment period, the DAQ will address any comments and will prepare an Approval Order (AO) for
signature by the DAQ Director.

If Uinta Wax Operating, LLC does not respond to this letter within 10 business days, the project will
move forward without source concurrence. If Uinta Wax Operating, LLC has concerns that cannot be
resolved and the project becomes stagnant, the DAQ Director may issue an Order prohibiting
construction.

Approval Signature _____________________________________________________________
(Signature & Date)

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
Department of
Environmental Quality

Kimberly D. Shelley Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird Director

State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 1
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION

Project Number N161690003
Owner Name Uinta Wax Operating, LLC
Mailing Address 5128 Apache Plume Road, Suite 300
Fort Worth, TX, 76109

Source Name Uinta Wax Operating, LLC- Zager Booster Station
Source Location 5.5 Miles South of Myton
Duchesne County, UT

UTM Projection 579,763 m Easting, 4,440,941 m Northing
UTM Datum NAD83
UTM Zone UTM Zone 12
SIC Code 4922 (Natural Gas Transmission)

Source Contact Karen Pratt
Phone Number [phone]
Email [e-mail]

Billing Contact Karen Pratt
Phone Number [phone]
Email [e-mail]

Project Engineer Dungan Adams, Engineer
Phone Number [phone]
Email [e-mail]

Notice of Intent (NOI) Submitted February 20, 2024
Date of Accepted Application April 29, 2024

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 2
SOURCE DESCRIPTION

General Description
Uinta Wax Operating, LLC (Uinta) will operate a new natural gas compressor station designed to
compress 120 million standard cubic feet per day (MMscfd) of natural gas in Duchesne County.
Conventional gas will enter the station and be fed to an inlet slug catcher. Produced water from
the inlet slug catcher will be stored in atmospheric storage tanks and transported off site via
trucks. All vapors from atmospheric produced water storage tanks are controlled by a combustor.
Overhead gas from the inlet slug catcher will be compressed. Liquids condensed following stages
of compression will be routed to a three-phase separator and stored in pressurized bullet tanks to
be transported off site via pressurized trucks. Any gas off of the three-phase separator and bullet
tanks will be captured by an electric vapor recovery unit and routed to a sales line. Vapors from
compressor blowdowns and pigging venting will be controlled by a flare.

NSR Classification:
Minor Modification at Minor Source

Source Classification
Located in Uinta Basin O3 NAA
Duchesne County
Airs Source Size: B

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), JJJJ: Standards of Performance for Stationary Spark Ignition Internal
Combustion Engines
NSPS (Part 60), OOOOa: Standards of Performance for Crude Oil and Natural Gas Facilities
for which Construction, Modification or Reconstruction Commenced After September 18,
2015
MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines

Project Proposal
Minor Modification to Add and Update Equipment

Project Description
Uinta Wax has requested the following changes to the AO:
1. Add two (2) additional 1,900 horsepower (hp) compressor engines
2. Replace the existing 118 hp emergency generator with a 249 hp generator engine.
3. Update flare, venting, and fugitive emissions to account for the new compressor engines.

EMISSION IMPACT ANALYSIS
The emission increases did not trigger the requirement for Uinta Wax Operating to conduct modeling for
criteria pollutants under Utah Administrative Code (UAC) R307-410-4. The source is exempt from modeling
for Hazardous Air Pollutants outlined in UAC R307-410-5 because the source is subject to a MACT standard
for HAP emissions.

The UDAQ conducted 1-hour NO2 modeling analyses. The results indicated that the highest 1-hour NO2 impact
would be 70.9% of the NAAQS levels. No additional conditions or limitations are recommended. See

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
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Modeling Memorandum DAQE-MN161690003-23a, dated April 18, for more information.
[Last updated April 29, 2024]

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
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SUMMARY OF EMISSIONS

The emissions listed below are an estimate of the total potential emissions from the source. Some
rounding of emissions is possible.

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 22232 43948.00
Carbon Monoxide -31.93 43.20
Nitrogen Oxides 20.71 39.67
Particulate Matter - PM10 1.35 2.49
Particulate Matter - PM2.5 1.35 2.49
Sulfur Dioxide 0.07 0.14
Volatile Organic Compounds 22.87 52.59

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 938 1798
Acrolein (CAS #107028) 316 1036
Benzene (Including Benzene From Gasoline) (CAS #71432) 114 240
Ethyl Benzene (CAS #100414) 10 24
Formaldehyde (CAS #50000) 7280 16840
Generic HAPs (CAS #GHAPS) 200 400
Hexane (CAS #110543) 460 1100
Methanol (CAS #67561) 202 542
Toluene (CAS #108883) 72 168
Xylenes (Isomers And Mixture) (CAS #1330207) 22 58
Change (TPY) Total (TPY)
Total HAPs 4.80 11.10

Note: Change in emissions indicates the difference between previous AO and proposed modification.

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
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Review of BACT for New/Modified Emission Units

1. BACT review regarding New 1,900 hp Compressor Engines
Uinta is adding two (2) four-stroke lean burn natural gas fired 1,900 hp Caterpillar G3606 LE
compressor engines.

Nitrogen Oxides (NOx)
NOx emissions from natural gas-fired engines occurs primarily through the formation of thermal
NOx. Thermal NOx is created by the thermal dissociation and subsequent reaction of nitrogen (N2)
and oxygen (O2) molecules in the combustion air. Factors affecting the generation of NOx include
flame temperature, residence time, quantity of excess air, and nitrogen content of the fuel.
Available pre-combustion controls include air-to-fuel ratio control and ignition system controls.
Available post-combustion catalytic technologies include selective catalytic reduction (SCR) and
nonselective catalytic reduction (NSCR). An NSCR is best suited for rich burn engines and is not
considered. An SCR requires a specific exhaust temperature (480oF to 800oF) for optimal
destruction. Because the proposed compressor engines do not meet the required range, use of an
SCR is considered technically infeasible.

The engines will be equipped with an air fuel ratio controller (AFRC). As per manufacturer's
specifications, the AFRC system will limit NOx emission rates to 0.50 g/bhp-hr in each 1,900 hp
engine. This emission rate is below the limit of 1.0 g/hp-hr of NOx specified in 40 CFR 60 Subpart
JJJJ. Therefore, BACT to control NOx emissions from the 1,900 hp engines is to limit the NOx
concentration to 0.50 g/hp-hr.

Carbon Monoxide (CO)
CO emissions from natural gas combustion occur due to incomplete combustion. CO is generated
when there is insufficient time at high temperature to complete the final step in hydrocarbon
oxidation. Available pre-combustion controls include air-to-fuel ratio control and ignition system
controls. Available post-combustion catalytic technologies include SCR, NSCR, and oxidation
catalysts. As mentioned above, the engines will be equipped with an AFRC and the use of an SCR
and an NSCR are technically infeasible.

The engines will be equipped with an oxidation catalyst. As per manufacturer's specifications, the
oxidation catalyst will limit CO emission rates to 0.50 g/bhp-hr in each 1,900 hp engine. This
emission rate is below the limit of 2.0 g/hp-hr of CO specified in 40 CFR 60 Subpart JJJJ. DAQ is
unaware of any other add-on control technologies that can further reduce CO emissions and agrees
that these emission rates are considered BACT for the proposed natural gas-fired engines.
Therefore, BACT to control CO emission from the 1,900 hp engines is to limit CO concentrations
to 0.50 g/hp-hr.

VOCs/HAPs
VOC emissions from natural gas combustion occur due to incomplete combustion. Many HAP
components are emitted through the same process as VOCs and the control technologies for VOCs
also control HAPs. Uinta Wax has elected to use an oxidation catalyst to control VOC,
formaldehyde, and other HAPs emissions. The oxidation catalyst will limit VOCs emission rates to
0.60 g/bhp-hr in each 1,900 hp engine. This emission rate is less than the limit of 0.7 g/hp-hr
specified in 40 CFR 60 Subpart JJJJ. This is considered BACT.

PM10/PM2.5
The combustion of natural gas in the engines will result in minor PM10/PM2.5 emissions (<1 tpy,
each). NSPS 40 CFR 60 Subpart JJJJ does not set PM emission limits for these types of engines.

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May 2, 2024
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Available control options for PM emissions include conducting proper maintenance and good
combustion practices. Uinta will conduct proper maintenance and good combustion practices. This
is considered BACT.

Sulfur Dioxide (SO2)
Sulfur dioxide emissions are a result of sulfur present in natural gas. The only control option
identified for reducing SO2 is the use of good combustion practices. Uinta will conduct good
combustion practices. This is considered BACT. [Last updated May 1, 2024]

2. BACT review regarding New 1,900 hp Compressor Engines (Continued)
Based on information provided above, DAQ recommends the following measures as BACT for the
1,900 hp, natural gas-fired compressor engines:

1. Equip each compressor engine with an AFRC and an oxidation catalyst.

2. Limit exhaust concentrations, in g/bhp-hr, in the engines to 0.5 of NOx, 0.5 of CO,
and 0.6 of VOCs. This corresponds to a rate of 2.09 lb/hr, 2.09 lb/hr, and 2.51 lb/hr of
NOx, CO, and VOCs, respectively.

3. Conduct manufacturer recommended maintenance and testing.

4. Limit visible emissions to 10% opacity.
[Last updated April 29, 2024]

3. BACT review regarding New 249 hp Generator Engine
Uinta currently operates (1) natural gas-fired emergency engine rated at 118 hp. Uinta has
requested to replace the current engine with one (1) 249 hp natural gas-fired engine with constant
operation (8,760 hours per year).

Nitrogen Oxides (NOx)
NOx emissions from natural gas-fired engines occurs primarily through the formation of thermal
NOx. Thermal NOx is created by the thermal dissociation and subsequent reaction of nitrogen (N2)
and oxygen (O2) molecules in the combustion air. Factors affecting the generation of NOx include
flame temperature, residence time, quantity of excess air, and nitrogen content of the fuel.
Available pre-combustion controls include air-to-fuel ratio control (AFRC) and ignition system
controls. Available post-combustion catalytic technologies include selective catalytic reduction
(SCR) for lean-burn engines and nonselective catalytic reduction (NSCR) for rich-burn engines.
The proposed generator engine will be equipped with an NSCR and an AFRC. As per the
manufacturer's specifications, the systems will limit NOx emission rates to 1.0 g/bhp-hr. This
emission rate is equal to the limit of 1.0 g/hp-hr of NOx specified in 40 CFR 60 Subpart JJJJ. Uinta
has shown that an additional catalyst to reduce the NOx emission rate to 0.5 g/bhp-hr is
economically prohibitive. Therefore, a NOx emission rate of 1.0 g/bhp-hr is considered BACT for
the proposed engines.
Carbon Monoxide
CO emissions from natural gas combustion occur due to incomplete combustion. CO is generated
when there is insufficient time at high temperature to complete the final step in hydrocarbon
oxidation. Available pre-combustion controls include AFRC and ignition system controls.
Available post-combustion catalytic technologies include SCR and oxidation catalysts (OC) for
lean-burn engines and NSCR for rich-burn engines. The proposed generator engine will be
equipped with an NSCR and an AFRC. As per the manufacturer's specifications, the control

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
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systems will limit CO emission rates to 2.0 g/bhp-hr. This emission rate is equal to the limit of 2.0
g/hp-hr of CO specified in 40 CFR 60 Subpart JJJJ. Therefore, a CO emission rate of 2.0 g/bhp-hr
is considered BACT for the proposed engines.

VOCs/HAPs
VOC emissions from natural gas combustion also occur due to incomplete combustion and can be
controlled by the NSCR. The NSCR system for the proposed engine are anticipated to reduce
VOC concentrations by approximately 30%. As per manufacturer's specifications, the VOCs
emission rates will be limited to 0.7 g/bhp-hr. This emission rate is equal to the limit of 0.7 g/hp-hr
specified in 40 CFR 60 Subpart JJJJ. Many HAP components are emitted through the same process
as VOCs and the control technologies for VOCs also control HAPs. Formaldehyde is the
predominant HAP component emitted from natural gas combustion. Formaldehyde and other
HAPs emissions will be controlled by the NSCR systems for the proposed engines. DAQ is
unaware of any other add-on control technologies that can cost-effectively reduce VOCs/HAPs
emissions. Therefore, a VOC emission rate of 0.7 g/bhp-hr is considered BACT for the proposed
engines.

PM10/PM2.5
The combustion of natural gas in the generator engine will result in minor PM10/PM2.5 emissions
(<1 tpy). NSPS 40 CFR 60 Subpart JJJJ does not set PM emission limits for these types of engines.
Available control options for PM emissions include conducting proper maintenance and good
combustion practices. Uinta will conduct proper maintenance and good combustion practices. This
is considered BACT.

Sulfur Dioxide (SO2)
Sulfur dioxide emissions are a result of sulfur present in natural gas. The only control option
identified for reducing SO2 is the use of good combustion practices. Uinta will conduct good
combustion practices. This is considered BACT. [Last updated April 29, 2024]

4. BACT review regarding New 249 hp Generator Engine (Continued)
Based on information provided above, DAQ recommends the following measures as BACT for the
249 hp, natural gas-fired generator engine:

1. Equip the generator engine with an AFRC and an NSCR.

2. Limit exhaust concentrations, in g/bhp-hr, in the engines to 1.0 of NOx, 2.0 of CO,
and 0.7 of VOCs. This corresponds to a rate of 0.55 lb/hr, 1.10 lb/hr, and 0.38 lb/hr of
NOx, CO, and VOCs, respectively.

3. Conduct manufacturer recommended maintenance and testing.

4. Limit visible emissions to 10% opacity. [Last updated April 29, 2024]

5. BACT review regarding Compressor Blowdowns and Compressor Rod Packing
Uinta has updated potential emissions from compressor blowdowns and compressor rod packing to
account for the two (2) new compressor engines. Compressor blowdowns and compressor rod
packing will result in 5.6 tpy of VOCs and 0.26 tpy of HAPs. BACT to control VOC/HAPs
emissions from compressor blowdowns is the use of a flare with a minimum VOC destruction
efficiency of 95%. All emissions from these processes shall be routed through the flare before
being vented to the atmosphere. To reduce emissions from the compressor rod packing, the
owner/operator shall replace the reciprocating compressor rod packing and maintain the facility

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
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according to NSPS Subpart OOOOa. This is considered BACT. [Last updated April 29, 2024]

6. BACT review regarding Fugitive Leak Emissions
Uinta has updated potential fugitive leak emissions to account for the two (2) new compressor
engines. Operations at the facility will generate 0.17 TPY of fugitive VOC emissions and 0.01
TPY of fugitive HAP emissions. BACT to control fugitive VOC and HAP emissions is the
implementation of a fugitive leak detection and repair program per NSPS OOOOa. [Last updated
April 29, 2024]

SECTION I: GENERAL PROVISIONS

The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label):

I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in
the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions
refer to those rules. [R307-101]

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

I.3 Modifications to the equipment or processes approved by this AO that could affect the
emissions covered by this AO must be reviewed and approved. [R307-401-1]

I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by
the owner/operator, shall be made available to the Director or Director's representative upon
request, and the records shall include the two-year period prior to the date of the request.
Unless otherwise specified in this AO or in other applicable state and federal rules, records
shall be kept for a minimum of two (2) years. [R307-401-8]

I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO,
including associated air pollution control equipment, in a manner consistent with good air
pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available
to the Director which may include, but is not limited to, monitoring results, opacity
observations, review of operating and maintenance procedures, and inspection of the source.
All maintenance performed on equipment authorized by this AO shall be recorded. [R307-
401-4]

I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-
150]

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I.8 The owner/operator shall submit documentation of the status of construction or modification
to the Director within 18 months from the date of this AO. This AO may become invalid if
construction is not commenced within 18 months from the date of this AO or if construction is
discontinued for 18 months or more. To ensure proper credit when notifying the Director,
send the documentation to the Director, attn.: NSR Section. [R307-401-18]

SECTION II: PERMITTED EQUIPMENT
The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label):

II.A THE APPROVED EQUIPMENT

II.A.1 Zager Booster Station

II.A.2 Four (4) Compressor Engines (Two (2) New)
Rating: 1900 hp, each
Fuel: Natural gas
Control: OC and AFRC
Federal Subpart Applicability: NSPS Subpart JJJJ, MACT Subpart ZZZZ

II.A.3 One (1) Generator Engine (New)
Rating: 249 hp
Fuel: Natural gas
Control: NSCR and AFRC
Federal Subpart Applicability: NSPS Subpart JJJJ, MACT Subpart ZZZZ

II.A.4 Various Tank Heaters & Boilers
Rating: < 5 MMBtu/hr, each
Fuel: Natural gas

*Listed for informational purposes only

II.A.5 Three (3) Atmospheric Storage Tanks
Contents: Produced water
Capacity: 1,000 bbl, each

II.A.6 Four (4) Pressurized Bullet Storage Tanks
Contents: Natural gas liquids
Capacity: 30,000 gal, each

II.A.7 One (1) Tank Combustor
Capacity: 0.82 MMBtu/hr

II.A.8 One (1) Flare (New)
Capacity: 0.28 MMBtu/hr

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SECTION II: SPECIAL PROVISIONS
The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label):

II.B REQUIREMENTS AND LIMITATIONS

II.B.1.a The owner/operator shall not allow the visible emissions from the following emission points
to exceed the following values:

A. The flare and combustor - no visible emissions

B. All natural gas-operated equipment - 10% opacity

C. All other points - 20% opacity

[R307-401-8, R307-508-3]

II.B.1.a.1 Opacity observations of emissions from stationary sources shall be conducted in accordance
with 40 CFR 60, Appendix A, Method 9. [R307-401-8]

II.B.1.b All emissions from the compressor blowdowns and pigging venting shall be routed through
the flare before being vented to the atmosphere. [R307-401-8]

II.B.1.c The owner/operator shall replace the reciprocating compressor rod packing according to 40
CFR 60, Subpart OOOOa. [40 CFR 60 Subpart OOOOa, R307-401-8]

II.B.2 Combustor/Flare Requirements
II.B.2.a The owner/operator shall only use natural gas or plant gas as fuel for each pilot light in the
combustor and the flare. [R307-401-8]

II.B.2.b The flare and combustor shall each operate with a continuous pilot flame and be equipped
with an auto-igniter. [R307-401-8]

II.B.2.b.1 The owner/operator shall maintain records demonstrating the date of installation and
manufacturer specifications for each auto-igniter required under R307-503-4. [R307-503-5]

II.B.2.c The owner/operator shall install a flare and a combustor that are each certified to meet a VOC
destruction efficiency of no less than 95%. [R307-401-8]

II.B.2.c.1 To demonstrate compliance with the above condition, the owner/operator shall maintain
records of the manufacturer's emissions guarantee for the installed flare and combustor.
[R307-401-8]

II.B.3.a The owner/operator shall only use natural gas as fuel in each compressor engine. [R307-401-
8]

II.B.3 Compressor Engine Requirements

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II.B.3.b
NEW
The owner/operator shall equip each compressor engine with an air-to-fuel ratio controller
(AFRC) and an oxidation catalyst (OC). [R307-401-8]

II.B.4 Stack Testing Requirements
II.B.4.a
NEW
The owner/operator shall not emit more than the following rates and concentrations from each
1900 HP Compressor Engine:

Pollutant lb/hr
NOx 2.09
CO 2.09
VOC 2.51
. [R307-401-8]

II.B.4.a.1 Initial Test
The owner/operator shall conduct an initial stack test on the emission unit within 180 days
after startup of the emission unit. [R307-165-2]

II.B.4.a.2 Compliance Demonstration
To demonstrate compliance with the emission limitations above, the owner/operator shall
perform stack testing on the emissions unit according to the stack testing conditions contained
in this AO. [R307-165-2, R307-401-8]

II.B.4.a.3 Test Frequency
To demonstrate compliance with the NOx, CO and VOC limits, the owner/operator shall
conduct a stack test on each emission unit within 8,760 hours or 3 years, whichever comes
first, after the date of the most recent stack test of each emission unit. The Director may
require the owner/operator to perform a stack test at any time. [R307-165-2, R307-401-8]

II.B.4.b
NEW
The owner/operator shall conduct any stack testing required by this AO according to the
following conditions.. [R307-401-8]

II.B.4.b.1 Notification
At least 30 days prior to conducting a stack test, the owner/operator shall submit a source test
protocol to the Director. The source test protocol shall include the items contained in
R307-165-3. If directed by the Director, the owner/operator shall attend a pretest conference.
[R307-165-3, R307-401-8]

II.B.4.b.2 Testing & Test Conditions
The owner/operator shall conduct testing according to the approved source test protocol and
according to the test conditions contained in R307-165-4. [R307-165-4, R307-401-8]

II.B.4.b.3 Access
The owner/operator shall provide Occupational Safety and Health Administration (OSHA)- or
Mine Safety and Health Administration (MSHA)-approved access to the test location.
[R307-401-8]

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II.B.4.b.4 Reporting
No later than 60 days after completing a stack test, the owner/operator shall submit a written
report of the results from the stack testing to the Director. The report shall include validated
results and supporting information. [R307-165-5, R307-401-8]

II.B.4.b.5 Possible Rejection of Test Results
The Director may reject stack testing results if the test did not follow the approved source test
protocol or for a reason specified in R307-165-6. [R307-165-6, R307-401-8]

II.B.4.b.6 Standard Conditions

A. Temperature - 68 degrees Fahrenheit (293 K)

B. Pressure - 29.92 in Hg (101.3 kPa)

C. Averaging Time - As specified in the applicable test method

[40 CFR 60 Subpart A, 40 CFR 63 Subpart A, R307-401-8]

II.B.4.b.7 NOx
40 CFR 60, Appendix A, Method 7; Method 7E; or other EPA-approved testing method as
acceptable to the Director. [R307-401-8]

II.B.4.b.8 VOC
40 CFR 60, Appendix A, Method 18; Method 25; Method 25A; 40 CFR 63, Appendix A,
Method 320; or other EPA-approved testing method as acceptable to the Director.
[R307-401-8]

II.B.4.b.9 CO
40 CFR 60, Appendix A, Method 10 or other EPA-approved testing method as acceptable to
the Director. [R307-401-8]

II.B.5
NEW
Natural Gas-Fired Generator Engine Requirements
II.B.5.a
NEW
The owner/operator shall only use natural gas as fuel for the 249 hp generator engine on site.
[R307-401-8]

II.B.5.a.1
NEW
The owner/operator shall equip the 249 hp generator engine with an air-to-fuel ratio controller
(AFRC) and a non-selective catalytic reduction (NSCR) device. [R307-401-8]

II.B.6 Atmospheric Produced Water Storage Tank (Storage Vessel) Requirements
II.B.6.a The owner/operator shall not produce more than 18,250 barrels (1 barrel = 42 gallons) of
produced water per rolling 12-month period. [R307-401-8]

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II.B.6.a.1 The owner/operator shall:

A. Determine produced water production with process flow meters
and/or sales records.

B. Record produced water production on a monthly basis.

C. Use the monthly production data reported to the Utah Division of Oil, Gas,
and Mining to calculate a new 12-month total by the 20th day of each month
using data from the previous 12 months.

D. Keep the production records for all periods the plant is in operation.

[R307-401-8]

II.B.6.b The owner/operator shall route all gases, vapors, and fumes from the produced water storage
tanks on site to the operating combustor. [R307-401-8]

II.B.6.c The owner/operator shall keep the storage tank thief hatches and other tank openings closed
and sealed except during tank unloading or other maintenance activities. [R307-401-8]

II.B.7 Truck Loading Requirements
II.B.7.a The owner/operator shall load the atmospheric tank trucks on site by the use of bottom filling
or a submerged fill pipe. [R307-401-8, R307-504]

II.B.8 Monitoring Requirements of Fugitive Emissions (Leak Detection and Repair)
II.B.8.a The owner/operator shall develop a fugitive emissions monitoring plan. At a minimum, the
plan shall include:

A. Monitoring frequency

B. Monitoring technique and equipment

C. Procedures and timeframes for identifying and repairing leaks

D. Recordkeeping practices

E. Calibration and maintenance procedures

[R307-401-8]

II.B.8.a.1 The plan shall address monitoring for "difficult-to-monitor" and "unsafe-to-monitor"
components. [R307-401-8]

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II.B.8.b The owner/operator shall conduct monitoring surveys on site to observe each "fugitive
emissions component" for "fugitive emissions."

A. "Fugitive emissions component" means any component that has the potential to emit
fugitive emissions of VOC, including but not limited to valves, connectors, pressure
relief devices, open-ended lines, flanges, covers and closed vent systems, thief
hatches or other openings, compressors, instruments, and meters.

B. "Fugitive emissions" are considered any visible emissions observed using optical gas
imaging or a Method 21 instrument reading of 500 ppm or greater.

[R307-401-8]

II.B.8.b.1 Monitoring surveys shall be conducted according to the following schedule:
A. No later than 60 days after startup of production, as defined in 40 CFR 60.5430a.

B. Semiannually after the initial monitoring survey. Consecutive semiannual monitoring
surveys shall be conducted at least 4 months apart.

C. Annually after the initial monitoring survey for "difficult-to-monitor" components.

D. As required by the owner/operator's monitoring plan for "unsafe-to-monitor"
components.

[R307-401-8]

II.B.8.b.2 Monitoring surveys shall be conducted using one or both of the following to detect fugitive
emissions:

A. Optical gas imaging (OGI) equipment. OGI equipment shall be capable of imaging
gases in the spectral range for the compound of highest concentration in the potential
fugitive emissions.

B. Monitoring equipment that meets U.S. EPA Method 21, 40 CFR Part 60, Appendix A.

[R307-401-8]

II.B.8.c If fugitive emissions are detected at any time, the owner/operator shall repair the fugitive
emissions component as soon as possible but no later than 15 calendar days after detection.

If the repair or replacement is technically infeasible, would require a vent blowdown, a well
shutdown or well shut-in, or would be unsafe to repair during operation of the unit, the repair
or replacement must be completed during the next well shutdown, well shut-in, after an
unscheduled, planned or emergency vent blowdown or within 24 months, whichever is earlier.

[R307-401-8]

II.B.8.c.1 The owner/operator shall resurvey the repaired or replaced fugitive emissions component no
later than 30 calendar days after the fugitive emissions component was repaired. [R307-401-8]

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 15
II.B.8.d The owner/operator shall maintain records of the fugitive emissions monitoring plan,
monitoring surveys, repairs, and resurveys. [R307-401-8]

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 16
PERMIT HISTORY

When issued, the approval order shall supersede (if a modification) or will be based on the
following documents:

Supersedes DAQE-AN161960001-23 dated December 13, 2023
Is Derived From NOI dated February 20, 2024
Incorporates Additional Information dated April 11, 2024

REVIEWER COMMENTS

1. Comment regarding Emissions Estimates and DAQ Acceptance:
Engines:
Emission estimates from the four (4) 1,900 hp compressor engines and one (1) 249 hp natural gas-
fired generator engines were made with manufacturer provided information and AP-42 emission
factors.

For the 1,900 hp compressor engines: 0.5 g/hp-hr of NOx, 2.58 g/hp-hr of CO (without controls), and
1.40 g/hp-hr of VOCs (without controls). The use of an oxidation catalyst results in a controlled
emission concentration of 0.5 g/hp-hr of CO and 0.60 g/hp-hr of VOCs. All other emission factors
are from AP-42 Table 3.2-3. 8,760 hours of operation annually is assumed. The emission factors of
the two (2) existing 1,900 hp compressor engines have been updated to match the manufacturer's
new emission guarantee.

For the 249 hp generator engine: 1.0 g/hp-hr of NOx, 2.0 g/hp-hr of CO, and 0.70 g/hp-hr of VOCs.
All other emission factors are from AP-42 Table 3.2-3. 8,760 hours of operation annually is
assumed.

Flare:
The flare rating has increased from 0.21 MMBtu/hr to 0.28 MMBtu/hr. Emission factors were taken
from AP-42 Tables 13.5-1 (NOx) and 13.5-2 (CO). The flare operates 8,760 hours annually and is
conservatively assumed to have a 95% destruction efficiency.

Venting Emissions:
The total number of compressor blowdowns is based on 52 blowdown events per year for each
compressor. The blowdowns assume 95% destruction efficiency from the flare. Compressor rod
packing emissions assume a continuous vent rate of 20 scf/hr per engine. The weight fractions of the
gas stream were calculated from gas analyses.

Fugitive Leak Emissions:
Emission factors are from EPA's Protocol for Equipment Leak Emission Estimates, EPA-453/R95-
017, November 1995. The weight fractions of the gas stream were calculated from gas analyses. The
facility consists of approximately 373 gas flanges, 164 liquid flanges, 494 gas valves, 228 liquid
valves, 1,782 gas connectors, 367 liquid connectors, 95 open-ended gas lines, and 41 open-ended
liquid lines, all operating for 8,760 per year

[Last updated April 29, 2024]

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 17
2. Comment regarding HAP Emission Calculations:
When the source requested to replace the 118 hp emergency generator engine with one (1) 249 hp
natural gas-fired generator engine that would operate annually, they did not provide an updated site-
wide HAP emission summary. Site-wide non-generic HAP emissions were calculated using the
following method. The 118 hp generator HAP emissions were subtracted from the original NOI
(February 20, 2024) HAP emission summary. Then the 249 hp generator emissions were added to
the HAP emissions summary. The 118 hp and 249 hp generator emissions were calculated using AP-
42, Section 3.2. Natural Gas-fired Reciprocating Engines. A summary of the calculations is listed
below. All calculations use tons per year (TPY) units.

Formaldehyde: 8.28 - 0.10 + 0.24 = 8.42 TPY
Benzene: 0.11 - 0.008 + 0.018 = 0.120 TPY
Toluene: 0.08 - 0.002 + 0.006 = 0.084 TPY
Ethylbenzene: 0.012 - 0.0001 + 0.0003 = 0.0122 TPY
Xylenes: 0.029 - 0.001 + 0.002 = 0.0291 TPY
Acetaldehyde: 0.88 - 0.014 + 0.033 = 0.899 TPY
Acrolein: 0.5 - 0.013 + 0.031 = 0.518 TPY
Methanol: 0.25 - 0.015 + 0.036 = 0.271 TPY

Summing these eight HAPs along with Hexane leads to a total of 10.90 TPY of HAPs. However, this
does not include the Generic HAPs produced by the four (4) compressor engines and one (1) 249 hp
generator. Generic HAPs are calculated by subtracting the eight HAPs above and hexane produced
by each engine from the total HAPs produced by each engine. Generic HAPs are conservatively
estimated to be 0.2 TPY. Total side-wide HAP emissions are 11.1 TPY.
[Last updated April 29, 2024]

3. Comment regarding 40 CFR 60 (NSPS) Federal Subpart Applicability:
NSPS Subpart Kb (Standards of Performance for Volatile Organic Liquid Storage Vessels (Including
Petroleum Liquid Storage Vessels) for Which Construction, Reconstruction, or Modification
Commenced After July 23, 1984) applies to volatile organic liquid storage tanks with a capacity
greater than or equal to 75 m3 (§60.110b(a)). However, Subpart Kb does not apply to storage vessels
with a design capacity less than or equal to 1,589.874 m3 that are used for petroleum or condensate
storage prior to custody transfer. The atmospheric storage tanks at the Zager Booster Station are less
than 1,589.874 m3 and are used for storage prior to custody transfer. The pressurized tanks meet the
exemption of (§60.110b(d)(2)) because they are pressurized in excess of 204.9 kPa and do not have
emissions. Therefore, NSPS Subpart Kb does not apply to the Zager Booster Station.

NSPS Subpart JJJJ (Standards of Performance for Stationary Spark Ignition Internal Combustion
Engines) applies to engines that were ordered after June 12, 2006 and manufactured on or after July
1, 2007 for compressor engines with maximum power greater than or equal to 500 hp
(§60.4230(a)(4)(i)) and engine that was manufactured on or after January 1, 2011 for generator
engine with maximum power greater than or equal to 100 hp and less than 500 hp (§60.4231(d)).
Thus, Subpart JJJJ applies to the Zager Booster Station as the compressor engines were ordered after
June 12, 2006 and manufactured after July 1, 2007 and the certified generator engine was ordered
after June 12, 2006 and manufactured after January 1, 2011

NSPS Subpart OOOOa (Standards of Performance for Crude Oil and Natural Gas Facilities for
which Construction, Modification or Reconstruction Commenced After September 18, 2015) applies
to affected sources that commenced construction, modification, or reconstruction after September
18, 2015. Potentially affected sources under this subpart include the storage vessels, compressors,
and fugitive emission components (as defined in § 60.5430a) at the Zager Booster Compressor

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 18
Station. While the storage vessels are to be installed after September 18, 2015, the potential to emit
(PTE) after controls is less than 6 tons per year (TPY) per vessel of volatile organic compounds
(VOC), therefore this is not an affected source as defined under 60.5365a(e). The reciprocating
compressor associated with compressor engine commenced construction after September 18, 2015.
Therefore, NSPS Subpart OOOOa applies to the compressor-affected facility. The Zager Booster
Compressor Station can be classified as a compressor station (as defined in § 60.5430a), and the
collection of fugitive emission components at the Zager Compressor Station will be considered an
affected facility. Therefore, NSPS Subpart OOOOa applies to the Zager Booster Station. [Last
updated May 2, 2024]

4. Comment regarding 40 CFR 63 (MACT) Federal Applicability:
MACT Subpart HH (National Emission Standards for Hazardous Air Pollutants from Oil and
Natural Gas Production Facilities) applies to oil and natural gas production facilities that are a major
or area source of HAP emissions, and that process, upgrade, or store hydrocarbon liquids or natural
gas prior to the transmission and storage source category (§63.760(a)). Subpart HH does apply to the
Zager Booster Station. Per the definitions in §63.761, the Zager Booster Station would be considered
a "production field facility" as it is before custody transfer (before a gas processing plant). The Zager
Booster Station emissions are below major source thresholds for HAPs, and there are no subject
sources at the Zager Booster Station. Therefore, Subpart HH does not apply for the Zager Booster
Station.
MACT Subpart ZZZZ (National Emissions Standards for Hazardous Air Pollutants for Stationary
Reciprocating Internal Combustion Engines) is applicable to owners/operators of stationary RICE at
a major or area sources of HAP emissions. MACT Subpart ZZZZ applies to the Zager Booster
Station as the engines are RICE. The engines will meet Subpart ZZZZ by meeting 40 CFR Part 60,
Subpart JJJJ as the Uinta Facility is an area source of HAP emissions. Therefore, MACT Subpart
ZZZZ applies to each engine on site. [Last updated April 29, 2024]

5. Comment regarding Title V Applicability:
Title V of the 1990 Clean Air Act (Title V) applies to the following:

1. Any major source
2. Any source subject to a standard, limitation, or other requirement under Section 111 of the Act,
Standards of Performance for New Stationary Sources;
3. Any source subject to a standard or other requirement under Section 112 of the Act, Hazardous
Air Pollutants.
4. Any Title IV affected source.

This facility is not a major source and is not a Title IV source. The facility is subject to regulations
under 40 CFR 60 (NSPS) Subpart JJJJ and OOOOa and 40 CFR 63 (MACT) Subpart ZZZZ. It is not
subject to 40 CFR 61 (NESHAP) regulations. Unless otherwise required by law, the owner or
operator of an area source subject to the provisions of either NSPS Subpart JJJJ, NSPS Subpart
OOOOa, or MACT Subpart ZZZZ is exempt from the obligation to obtain a Title V permit. No such
reasons exist for this source. Therefore, Title V does not apply to the Uinta facility.
[Last updated May 2, 2024]

Engineer Review N161690003: Uinta Wax Operating, LLC- Zager Booster Station
May 2, 2024
Page 19
ACRONYMS
The following lists commonly used acronyms and associated translations as they apply to this
document:
40 CFR Title 40 of the Code of Federal Regulations
AO Approval Order
BACT Best Available Control Technology
CAA Clean Air Act
CAAA Clean Air Act Amendments
CDS Classification Data System (used by EPA to classify sources by size/type)
CEM Continuous emissions monitor
CEMS Continuous emissions monitoring system
CFR Code of Federal Regulations
CMS Continuous monitoring system
CO Carbon monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent - 40 CFR Part 98, Subpart A, Table A-1
COM Continuous opacity monitor
DAQ/UDAQ Division of Air Quality
DAQE This is a document tracking code for internal UDAQ use
EPA Environmental Protection Agency
FDCP Fugitive dust control plan
GHG Greenhouse Gas(es) - 40 CFR 52.21 (b)(49)(i)
GWP Global Warming Potential - 40 CFR Part 86.1818-12(a)
HAP or HAPs Hazardous air pollutant(s)
ITA Intent to Approve
LB/HR Pounds per hour
LB/YR Pounds per year
MACT Maximum Achievable Control Technology
MMBTU Million British Thermal Units
NAA Nonattainment Area
NAAQS National Ambient Air Quality Standards
NESHAP National Emission Standards for Hazardous Air Pollutants
NOI Notice of Intent
NOx Oxides of nitrogen
NSPS New Source Performance Standard
NSR New Source Review
PM10 Particulate matter less than 10 microns in size
PM2.5 Particulate matter less than 2.5 microns in size
PSD Prevention of Significant Deterioration
PTE Potential to Emit
R307 Rules Series 307
R307-401 Rules Series 307 - Section 401
SO2 Sulfur dioxide
Title IV Title IV of the Clean Air Act
Title V Title V of the Clean Air Act
TPY Tons per year
UAC Utah Administrative Code
VOC Volatile organic compounds

DAQE-MN161690003A-24

M E M O R A N D U M

TO: Dungan Adams, NSR Engineer

FROM: Jason Krebs, Air Quality Modeler

DATE: April 18, 2024

SUBJECT: Modeling Analysis Review for the Notice of Intent for Uinta Wax Operating, LLC –
Sager Booster Station, Duchesne County, Utah
_____________________________________________________________________________________
This is not a Major Prevention of Significant Deterioration (PSD) Source.

I. OBJECTIVE
Uinta Wax Operating, LLC (Applicant) is seeking an approval order for their Zager Booster Station
located in Duchesne County, Utah. The applicant seeks to add two additional compressor engines
for a total of four.

This report, prepared by the Staff of the New Source Review Section (NSR), contains a review of
the air quality impact analysis (AQIA) including the information, data, assumptions and modeling
results used to determine if the facility will be in compliance with applicable State and Federal
concentration standards.

II. APPLICABLE RULE(S)

Utah Air Quality Rules:

R307-401-6 Condition for Issuing an Approval Order
R307-410-3 Use of Dispersion Models
R307-410-4 Modeling of Criteria Pollutants in Attainment Areas

III. MODELING METHODOLOGY

A. Applicability

Emissions from the facility include PM10, NOx, CO, SO2, and HAPs. This modeling is part of a
modified approval order. The emission rates for NOx triggered the requirement to model under
R307-410. Modeling was performed by the UDAQ.
B. Assumptions

1. Topography/Terrain

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

JK
DAQE- MN161690003A-24
Page 2
The Plant is at an elevation 5335 feet with terrain features that have an affect on
concentration predictions.

a. Zone: 12

b. Approximate Location:

UTM (NAD83): 579,763 meters East
4,440,941 meters North

2. Urban or Rural Area Designation

After a review of the appropriate 7.5 minute quadrangles, it was concluded the area is
“rural” for air modeling purposes.

3. Ambient Air

It was determined the Plant boundary used in the AQIA meets the State’s definition of
ambient air.

4. Building Downwash

The source was modeled with the AERMOD model. All structures at the plant were used in
the model to account for their influence on downwash.

5. Meteorology

Five (5) years of off-site surface and upper air data were used in the analysis consisting of
the following:

Surface – Vernal Airport, UT NWS: 2016-2020
Upper Air – Grand Junction Airport, CO NWS: 2016-2020

6. Background

The background concentrations were based on concentrations measured in Roosevelt, Utah.

7. Receptor and Terrain Elevations

The modeling domain used by the Applicant consisted of receptors including property
boundary receptors. This area of the state contains mountainous terrain and the modeling
domain has simple and complex terrain features in the near and far fields. Therefore,
receptor points representing actual terrain elevations from the area were used in the
analysis.

DAQE- MN161690003A-24
Page 3
8. Model and Options

The State-accepted AERMOD model was used to predict air pollutant concentrations under
a simple/complex terrain/wake effect situation. In quantifying concentrations, the
regulatory default option was selected.

9. Air Pollutant Emission Rates

Uinta Wax Operating, LLC – Zager Booster Station
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
COMP1 579794 4440973 2.09 9.15 8760
COMP3 579794 4440952 2.09 9.15 8760
COMP4 579794 4440942 2.09 9.15 8760
COMP2 579794 4440962 2.09 9.15 8760
GEN1 579781 4441010 0.55 1.14 8760
COMBST 575582 4459169 0.46 2.01 8760
UFLARE 579882 4441012 0.02 0.08 8760
TNKHEAT 579790 4440911 0.05 0.21 8760

Total 9.1470 40.0641
XCL AssetCo, LLC – Patry Booster Station
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
COMBST 575582 4459169 0.46 2.01 8760
ENG1 575619 4459112 1.52 6.66 8760
ENG2 575609 4459117 1.52 6.66 8760
ENG3 575598 4459123 1.52 6.66 8760

Total 5.02 21.99
Crusoe Energy Systems – Osguthorpe Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
EU01 576128 4457887 0.83 3.64 8760
EU02 576128 4457869 0.83 3.64 8760
EU03 576128 4457851 0.83 3.64 8760
DAQE- MN161690003A-24
Page 4
EU04 576128 4457833 0.83 3.64 8760
EU05 576128 4457815 0.83 3.64 8760
EU06 576202 4457887 0.83 3.64 8760
EU07 576202 4457869 0.83 3.64 8760
EU08 576202 4457851 0.83 3.64 8760
EU09 576202 4457833 0.83 3.64 8760
EU10 576202 4457815 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – Residue Booster
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
RES01 572727 4457532 0.83 3.64 8760
RES02 572727 4457514 0.83 3.64 8760
RES03 572727 4457496 0.83 3.64 8760
RES04 572727 4457478 0.83 3.64 8760
RES05 572727 4457460 0.83 3.64 8760
RES06 572801 4457532 0.83 3.64 8760
RES07 572801 4457514 0.83 3.64 8760
RES08 572801 4457496 0.83 3.64 8760
RES09 572801 4457478 0.83 3.64 8760
RES10 572801 4457460 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – Myton Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
SRC00041 576596 4444511 0.83 3.64 8760
SRC00042 576596 4444493 0.83 3.64 8760
SRC00043 576596 4444456 0.83 3.64 8760
SRC00044 576596 4444438 0.83 3.64 8760
SRC00045 576512 4444511 0.83 3.64 8760
SRC00046 576512 4444493 0.83 3.64 8760
SRC00047 576512 4444474 0.83 3.64 8760
SRC00048 576512 4444456 0.83 3.64 8760
SRC00049 576512 4444438 0.83 3.64 8760
DAQE- MN161690003A-24
Page 5
SRC00050 576596 4444474 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – West Lateral Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
WLAT01 562442 4452957 0.83 3.64 8760
WLAT02 562461 4452957 0.83 3.64 8760
WLAT03 562479 4452957 0.83 3.64 8760
WLAT04 562497 4452957 0.83 3.64 8760
WLAT05 562515 4452957 0.83 3.64 8760
WLAT06 562442 4452867 0.83 3.64 8760
WLAT07 562461 4452867 0.83 3.64 8760
WLAT08 562479 4452867 0.83 3.64 8760
WLAT09 562497 4452867 0.83 3.64 8760
WLAT10 562515 4452867 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – Mullins Tap Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
MULL01 578212 4452907 0.83 3.64 8760
MULL02 578230 4452907 0.83 3.64 8760
MULL03 578248 4452907 0.83 3.64 8760
MULL04 578266 4452907 0.83 3.64 8760
MULL05 578285 4452907 0.83 3.64 8760
MULL06 578212 4452819 0.83 3.64 8760
MULL07 578230 4452819 0.83 3.64 8760
MULL08 578248 4452819 0.83 3.64 8760
MULL09 578266 4452819 0.83 3.64 8760
MULL10 578285 4452819 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems - Duchesne Data Center Power Station
DAQE- MN161690003A-24
Page 6
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
TURBINE 567796 4460080 13.33 58.40 8760
GEN1 567878 4460114 0.83 3.62 8760
GEN2 567878 4460095 0.83 3.62 8760
GEN3 567879 4460077 0.83 3.62 8760
GEN4 567879 4460060 0.83 3.62 8760
GEN5 567879 4460040 0.83 3.62 8760
GEN6 567951 4460114 0.83 3.62 8760
GEN7 567951 4460095 0.83 3.62 8760
GEN8 567952 4460077 0.83 3.62 8760
BOOST1 567793 4460065 0.17 0.76 8760
BOOST2 567793 4460048 0.17 0.76 8760
REB1 567757 4460042 0.05 0.24 8760
REB2 567763 4460047 0.05 0.24 8760
EGEN1 567879 4460019 2.45 10.73 100
EGEN2 567879 4460011 2.45 10.73 100
GEN9 567952 4460058 0.83 3.62 8760
GEN10 567952 4460041 0.83 3.62 8760

Total 26.95 96.80
Ovinitive USA Inc. – Pleasant Valley Compressor Station
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
ENGINE1 576727 4444313 2.95 12.92 8760
ENGINE2 576718 4444313 2.95 12.92 8760
ENGINE3 576700 4444313 2.95 12.92 8760
FLARE 576669 4444216 0.09 0.39 8760
HEATER 576716 4444266 0.09 0.40 8760
REBOILER 576748 4444267 0.13 0.55 8760
ENGINE4 576709 4444313 2.95 12.92 8760
TNKHTR1 576789 4444273 0.02 0.07 8760
TNKHTR2 576790 4444268 0.02 0.07 8760
INCINER 576788 4444251 0.47 2.06 8760
ENGINE5 576735 4444313 2.95 12.92 8760
PVGEN 576747 4444333 0.14 0.61 8760
DAQE- MN161690003A-24
Page 7
TNKHTR3 576790 4444263 0.02 0.07 8760
TNKHTR4 576790 4444258 0.02 0.07 8760

Total 15.73 68.89
Kinder Morgan Compressor Stations
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
CUMUL1 564020 4467280 78.19 342.48 8760
CUMUL2 551427 4463055 74.10 324.54 8760
CUMUL3 548123 4457879 93.45 409.33 8760

Total 245.74 1076.36
10. Source Location and Parameters
Source Type
Source Parameters
Elev, Ht Temp Flow Dia
(ft) (m) (ft) (K) (m/s) (ft)
COMP1 POINT 5329.8 7.3 24.0 723 63.15 0.36
COMP3 POINT 5329.8 7.3 24.0 723 63.15 0.36
COMP4 POINT 5329.8 7.3 24.0 723 63.15 0.36
COMP2 POINT 5331.1 7.3 24.0 723 63.15 0.36
GEN1 POINT 5325.7 3.1 10.0 1005 35.97 0.10
COMBST POINT 5355.4 7.7 25.3 922 0.03 1.22
ENG1 POINT 5350.7 3.3 10.7 741 45.01 0.30
ENG2 POINT 5351.5 3.3 10.7 741 45.01 0.30
ENG3 POINT 5352.2 3.3 10.7 741 45.01 0.30
EU01 POINT 5307.9 7.6 25.0 861 56.60 0.33
EU02 POINT 5307.6 7.6 25.0 861 56.60 0.33
EU03 POINT 5307.9 7.6 25.0 861 56.60 0.33
EU04 POINT 5306.2 7.6 25.0 861 56.60 0.33
EU05 POINT 5304.3 7.6 25.0 861 56.60 0.33
EU06 POINT 5304.7 7.6 25.0 861 56.60 0.33
EU07 POINT 5305.2 7.6 25.0 861 56.60 0.33
EU08 POINT 5304.8 7.6 25.0 861 56.60 0.33
EU09 POINT 5302.7 7.6 25.0 861 56.60 0.33
EU10 POINT 5300.8 7.6 25.0 861 56.60 0.33
CUMUL1 POINT 6107.2 9.5 31.0 700 21.19 0.31
DAQE- MN161690003A-24
Page 8
CUMUL2 POINT 6740.9 9.1 30.0 700 21.18 0.31
CUMUL3 POINT 5855.3 9.1 30.0 700 21.19 0.31
TURBINE POINT 5825.4 12.2 40.0 765 46.40 1.83
GEN2 POINT 5828.4 7.6 25.0 861 56.60 0.33
GEN3 POINT 5828.5 7.6 25.0 861 56.60 0.33
GEN4 POINT 5827.4 7.6 25.0 861 56.60 0.33
GEN5 POINT 5825.8 7.6 25.0 861 56.60 0.33
GEN6 POINT 5822.0 7.6 25.0 861 56.60 0.33
GEN7 POINT 5821.6 7.6 25.0 861 56.60 0.33
GEN8 POINT 5821.1 7.6 25.0 861 56.60 0.33
BOOST1 POINT 5823.7 7.6 25.0 944 16.47 0.33
BOOST2 POINT 5821.7 7.6 25.0 944 16.47 0.33
REB1 POINT 5822.5 5.5 18.0 450 6.10 0.30
REB2 POINT 5822.4 5.5 18.0 450 6.10 0.30
EGEN1 POINT 5823.6 5.5 18.0 765 16.73 0.46
EGEN2 POINT 5820.9 5.5 18.0 765 16.73 0.46
GEN9 POINT 5820.3 7.6 25.0 861 56.60 0.33
GEN10 POINT 5818.8 7.6 25.0 861 56.60 0.33
RES01 POINT 5448.7 7.6 25.0 861 56.60 0.33
RES02 POINT 5448.6 7.6 25.0 861 56.60 0.33
RES03 POINT 5448.3 7.6 25.0 861 56.60 0.33
RES04 POINT 5447.9 7.6 25.0 861 56.60 0.33
RES05 POINT 5447.9 7.6 25.0 861 56.60 0.33
RES06 POINT 5446.0 7.6 25.0 861 56.60 0.33
RES07 POINT 5445.6 7.6 25.0 861 56.60 0.33
RES08 POINT 5445.0 7.6 25.0 861 56.60 0.33
RES09 POINT 5444.4 7.6 25.0 861 56.60 0.33
RES10 POINT 5444.1 7.6 25.0 861 56.60 0.33
WLAT01 POINT 5477.6 7.6 25.0 861 56.60 0.33
WLAT02 POINT 5476.7 7.6 25.0 861 56.60 0.33
WLAT03 POINT 5476.2 7.6 25.0 861 56.60 0.33
WLAT04 POINT 5476.4 7.6 25.0 861 56.60 0.33
WLAT05 POINT 5477.0 7.6 25.0 861 56.60 0.33
WLAT06 POINT 5488.1 7.6 25.0 861 56.60 0.33
WLAT07 POINT 5487.7 7.6 25.0 861 56.60 0.33
WLAT08 POINT 5487.5 7.6 25.0 861 56.60 0.33
WLAT09 POINT 5486.5 7.6 25.0 861 56.60 0.33
WLAT10 POINT 5484.9 7.6 25.0 861 56.60 0.33
ENGINE1 POINT 5375.5 15.8 52.0 806 58.16 0.30
ENGINE2 POINT 5375.5 15.8 52.0 806 58.16 0.30
DAQE- MN161690003A-24
Page 9
ENGINE3 POINT 5375.4 15.8 52.0 806 58.16 0.30
FLARE POINT 5378.0 21.3 70.0 811 96.81 0.30
UFLARE POINT 5325.1 21.3 70.0 811 96.81 0.30
HEATER POINT 5375.8 3.0 10.0 373 3.80 0.15
REBOILER POINT 5375.7 3.0 10.0 373 3.80 0.15
ENGINE4 POINT 5375.5 15.8 52.0 730 49.71 0.30
TNKHTR1 POINT 5375.5 6.1 20.0 373 3.80 0.15
TNKHTR2 POINT 5375.5 6.1 20.0 373 3.80 0.15
INCINER POINT 5375.6 6.1 20.0 981 1.92 1.22
ENGINE5 POINT 5375.5 15.8 52.0 806 58.16 0.30
PVGEN POINT 5374.0 2.4 8.0 704 28.46 0.15
TNKHTR3 POINT 5375.5 6.1 20.0 373 3.80 0.15
TNKHEAT POINT 5341.6 6.1 20.0 373 3.80 0.15
TNKHTR4 POINT 5375.5 6.1 20.0 373 3.80 0.15
SRC00041 POINT 5365.5 7.6 25.0 861 56.60 0.33
SRC00042 POINT 5366.2 7.6 25.0 861 56.60 0.33
SRC00043 POINT 5368.3 7.6 25.0 861 56.60 0.33
SRC00044 POINT 5369.9 7.6 25.0 861 56.60 0.33
SRC00045 POINT 5366.2 7.6 25.0 861 56.60 0.33
SRC00046 POINT 5366.7 7.6 25.0 861 56.60 0.33
SRC00047 POINT 5367.5 7.6 25.0 861 56.60 0.33
SRC00048 POINT 5368.8 7.6 25.0 861 56.60 0.33
SRC00049 POINT 5370.3 7.6 25.0 861 56.60 0.33
SRC00050 POINT 5366.9 7.6 25.0 861 56.60 0.33
MULL01 POINT 5270.6 7.6 25.0 861 56.60 0.33
MULL02 POINT 5269.8 7.6 25.0 861 56.60 0.33
MULL03 POINT 5268.7 7.6 25.0 861 56.60 0.33
MULL04 POINT 5267.4 7.6 25.0 861 56.60 0.33
MULL05 POINT 5266.0 7.6 25.0 861 56.60 0.33
MULL06 POINT 5260.5 7.6 25.0 861 56.60 0.33
MULL07 POINT 5259.6 7.6 25.0 861 56.60 0.33
MULL08 POINT 5259.0 7.6 25.0 861 56.60 0.33
MULL09 POINT 5258.7 7.6 25.0 861 56.60 0.33
MULL10 POINT 5258.3 7.6 25.0 861 56.60 0.33
CMBST POINT 5335.1 7.7 25.3 922 0.31 1.22

DAQE- MN161690003A-24
Page 10

IV. RESULTS AND CONCLUSIONS

A. National Ambient Air Quality Standards

The below table provides a comparison of the predicted total air quality concentrations with the
NAAQS. The predicted total concentrations are less than the NAAQS.

Air
Pollutant
Period Prediction Class II
Significant
Impact
Level
Background Nearby
Sources*
Total NAAQS Percent
(μg/m3) (μg/m3) (μg/m3) (μg/m3) (μg/m3) (μg/m3) NAAQS
NO2
1-
Hour 83.7 7.5 33.3 16.3 133.3 188.0 70.9%

JK:jg

DAQE-MN161690003-24

M E M O R A N D U M

TO: Dungan Adams, NSR Engineer

FROM: Jason Krebs, Air Quality Modeler

DATE: April 2, 2024

SUBJECT: Modeling Analysis Review for the Notice of Intent for Uinta Wax Operating, LLC –
Sager Booster Station, Duchesne County, Utah
_____________________________________________________________________________________
This is not a Major Prevention of Significant Deterioration (PSD) Source.

I. OBJECTIVE
Uinta Wax Operating, LLC (Applicant) is seeking an approval order for their Zager Booster Station
located in Duchesne County, Utah. The applicant seeks to add two additional compressor engines
for a total of four.

This report, prepared by the Staff of the New Source Review Section (NSR), contains a review of
the air quality impact analysis (AQIA) including the information, data, assumptions and modeling
results used to determine if the facility will be in compliance with applicable State and Federal
concentration standards.

II. APPLICABLE RULE(S)

Utah Air Quality Rules:

R307-401-6 Condition for Issuing an Approval Order
R307-410-3 Use of Dispersion Models
R307-410-4 Modeling of Criteria Pollutants in Attainment Areas

III. MODELING METHODOLOGY

A. Applicability

Emissions from the facility include PM10, NOx, CO, SO2, and HAPs. This modeling is part of a
modified approval order. The emission rates for NOx triggered the requirement to model under
R307-410. Modeling was performed by the UDAQ.

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

JK
DAQE- MN161690003-24
Page 2
B. Assumptions

1. Topography/Terrain

The Plant is at an elevation 5335 feet with terrain features that have an affect on
concentration predictions.

a. Zone: 12

b. Approximate Location:

UTM (NAD83): 579,763 meters East
4,440,941 meters North

2. Urban or Rural Area Designation

After a review of the appropriate 7.5 minute quadrangles, it was concluded the area is
“rural” for air modeling purposes.

3. Ambient Air

It was determined the Plant boundary used in the AQIA meets the State’s definition of
ambient air.

4. Building Downwash

The source was modeled with the AERMOD model. All structures at the plant were used in
the model to account for their influence on downwash.

5. Meteorology

Five (5) years of off-site surface and upper air data were used in the analysis consisting of
the following:

Surface – Vernal Airport, UT NWS: 2016-2020
Upper Air – Grand Junction Airport, CO NWS: 2016-2020

6. Background

The background concentrations were based on concentrations measured in Roosevelt, Utah.

7. Receptor and Terrain Elevations

The modeling domain used by the Applicant consisted of receptors including property
boundary receptors. This area of the state contains mountainous terrain and the modeling
domain has simple and complex terrain features in the near and far fields. Therefore,
receptor points representing actual terrain elevations from the area were used in the
analysis.

DAQE- MN161690003-24
Page 3
8. Model and Options

The State-accepted AERMOD model was used to predict air pollutant concentrations under
a simple/complex terrain/wake effect situation. In quantifying concentrations, the
regulatory default option was selected.

9. Air Pollutant Emission Rates

Uinta Wax Operating, LLC – Zager Booster Station
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
COMP1 579794 4440973 2.09 9.15 8760
COMP3 579794 4440952 2.09 9.15 8760
COMP4 579794 4440942 2.09 9.15 8760
COMP2 579794 4440962 2.09 9.15 8760
GEN1 579781 4441010 0.26 1.14 8760
COMBST 575582 4459169 0.46 2.01 8760
UFLARE 579882 4441012 0.02 0.08 8760
TNKHEAT 579790 4440911 0.05 0.21 8760

Total 9.1470 40.0641
XCL AssetCo, LLC – Patry Booster Station
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
COMBST 575582 4459169 0.46 2.01 8760
ENG1 575619 4459112 1.52 6.66 8760
ENG2 575609 4459117 1.52 6.66 8760
ENG3 575598 4459123 1.52 6.66 8760

Total 5.02 21.99
Crusoe Energy Systems – Osguthorpe Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
EU01 576128 4457887 0.83 3.64 8760
EU02 576128 4457869 0.83 3.64 8760
EU03 576128 4457851 0.83 3.64 8760
DAQE- MN161690003-24
Page 4
EU04 576128 4457833 0.83 3.64 8760
EU05 576128 4457815 0.83 3.64 8760
EU06 576202 4457887 0.83 3.64 8760
EU07 576202 4457869 0.83 3.64 8760
EU08 576202 4457851 0.83 3.64 8760
EU09 576202 4457833 0.83 3.64 8760
EU10 576202 4457815 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – Residue Booster
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
RES01 572727 4457532 0.83 3.64 8760
RES02 572727 4457514 0.83 3.64 8760
RES03 572727 4457496 0.83 3.64 8760
RES04 572727 4457478 0.83 3.64 8760
RES05 572727 4457460 0.83 3.64 8760
RES06 572801 4457532 0.83 3.64 8760
RES07 572801 4457514 0.83 3.64 8760
RES08 572801 4457496 0.83 3.64 8760
RES09 572801 4457478 0.83 3.64 8760
RES10 572801 4457460 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – Myton Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
SRC00041 576596 4444511 0.83 3.64 8760
SRC00042 576596 4444493 0.83 3.64 8760
SRC00043 576596 4444456 0.83 3.64 8760
SRC00044 576596 4444438 0.83 3.64 8760
SRC00045 576512 4444511 0.83 3.64 8760
SRC00046 576512 4444493 0.83 3.64 8760
SRC00047 576512 4444474 0.83 3.64 8760
SRC00048 576512 4444456 0.83 3.64 8760
SRC00049 576512 4444438 0.83 3.64 8760
DAQE- MN161690003-24
Page 5
SRC00050 576596 4444474 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – West Lateral Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
WLAT01 562442 4452957 0.83 3.64 8760
WLAT02 562461 4452957 0.83 3.64 8760
WLAT03 562479 4452957 0.83 3.64 8760
WLAT04 562497 4452957 0.83 3.64 8760
WLAT05 562515 4452957 0.83 3.64 8760
WLAT06 562442 4452867 0.83 3.64 8760
WLAT07 562461 4452867 0.83 3.64 8760
WLAT08 562479 4452867 0.83 3.64 8760
WLAT09 562497 4452867 0.83 3.64 8760
WLAT10 562515 4452867 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems – Mullins Tap Facility
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
MULL01 578212 4452907 0.83 3.64 8760
MULL02 578230 4452907 0.83 3.64 8760
MULL03 578248 4452907 0.83 3.64 8760
MULL04 578266 4452907 0.83 3.64 8760
MULL05 578285 4452907 0.83 3.64 8760
MULL06 578212 4452819 0.83 3.64 8760
MULL07 578230 4452819 0.83 3.64 8760
MULL08 578248 4452819 0.83 3.64 8760
MULL09 578266 4452819 0.83 3.64 8760
MULL10 578285 4452819 0.83 3.64 8760

Total 8.30 36.35
Crusoe Energy Systems - Duchesne Data Center Power Station
DAQE- MN161690003-24
Page 6
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
TURBINE 567796 4460080 13.33 58.40 8760
GEN1 567878 4460114 0.83 3.62 8760
GEN2 567878 4460095 0.83 3.62 8760
GEN3 567879 4460077 0.83 3.62 8760
GEN4 567879 4460060 0.83 3.62 8760
GEN5 567879 4460040 0.83 3.62 8760
GEN6 567951 4460114 0.83 3.62 8760
GEN7 567951 4460095 0.83 3.62 8760
GEN8 567952 4460077 0.83 3.62 8760
BOOST1 567793 4460065 0.17 0.76 8760
BOOST2 567793 4460048 0.17 0.76 8760
REB1 567757 4460042 0.05 0.24 8760
REB2 567763 4460047 0.05 0.24 8760
EGEN1 567879 4460019 2.45 10.73 100
EGEN2 567879 4460011 2.45 10.73 100
GEN9 567952 4460058 0.83 3.62 8760
GEN10 567952 4460041 0.83 3.62 8760

Total 26.95 96.80
Ovinitive USA Inc. – Pleasant Valley Compressor Station
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
ENGINE1 576727 4444313 2.95 12.92 8760
ENGINE2 576718 4444313 2.95 12.92 8760
ENGINE3 576700 4444313 2.95 12.92 8760
FLARE 576669 4444216 0.09 0.39 8760
HEATER 576716 4444266 0.09 0.40 8760
REBOILER 576748 4444267 0.13 0.55 8760
ENGINE4 576709 4444313 2.95 12.92 8760
TNKHTR1 576789 4444273 0.02 0.07 8760
TNKHTR2 576790 4444268 0.02 0.07 8760
INCINER 576788 4444251 0.47 2.06 8760
ENGINE5 576735 4444313 2.95 12.92 8760
PVGEN 576747 4444333 0.14 0.61 8760
DAQE- MN161690003-24
Page 7
TNKHTR3 576790 4444263 0.02 0.07 8760
TNKHTR4 576790 4444258 0.02 0.07 8760

Total 15.73 68.89
Kinder Morgan Compressor Stations
Source
UTM Coordinates Modeled Emission Rates
Easting Northing NOx
(m) (m) (lb/hr) (tons/yr) hrs/year
CUMUL1 564020 4467280 78.19 342.48 8760
CUMUL2 551427 4463055 74.10 324.54 8760
CUMUL3 548123 4457879 93.45 409.33 8760

Total 245.74 1076.36
10. Source Location and Parameters
Source Type
Source Parameters
Elev, Ht Temp Flow Dia
(ft) (m) (ft) (K) (m/s) (ft)
COMP1 POINT 5329.8 7.3 24.0 723 63.15 0.36
COMP3 POINT 5329.8 7.3 24.0 723 63.15 0.36
COMP4 POINT 5329.8 7.3 24.0 723 63.15 0.36
COMP2 POINT 5331.1 7.3 24.0 723 63.15 0.36
GEN1 POINT 5325.7 3.1 10.0 1005 35.97 0.10
COMBST POINT 5355.4 7.7 25.3 922 0.03 1.22
ENG1 POINT 5350.7 3.3 10.7 741 45.01 0.30
ENG2 POINT 5351.5 3.3 10.7 741 45.01 0.30
ENG3 POINT 5352.2 3.3 10.7 741 45.01 0.30
EU01 POINT 5307.9 7.6 25.0 861 56.60 0.33
EU02 POINT 5307.6 7.6 25.0 861 56.60 0.33
EU03 POINT 5307.9 7.6 25.0 861 56.60 0.33
EU04 POINT 5306.2 7.6 25.0 861 56.60 0.33
EU05 POINT 5304.3 7.6 25.0 861 56.60 0.33
EU06 POINT 5304.7 7.6 25.0 861 56.60 0.33
EU07 POINT 5305.2 7.6 25.0 861 56.60 0.33
EU08 POINT 5304.8 7.6 25.0 861 56.60 0.33
EU09 POINT 5302.7 7.6 25.0 861 56.60 0.33
EU10 POINT 5300.8 7.6 25.0 861 56.60 0.33
CUMUL1 POINT 6107.2 9.5 31.0 700 21.19 0.31
DAQE- MN161690003-24
Page 8
CUMUL2 POINT 6740.9 9.1 30.0 700 21.18 0.31
CUMUL3 POINT 5855.3 9.1 30.0 700 21.19 0.31
TURBINE POINT 5825.4 12.2 40.0 765 46.40 1.83
GEN2 POINT 5828.4 7.6 25.0 861 56.60 0.33
GEN3 POINT 5828.5 7.6 25.0 861 56.60 0.33
GEN4 POINT 5827.4 7.6 25.0 861 56.60 0.33
GEN5 POINT 5825.8 7.6 25.0 861 56.60 0.33
GEN6 POINT 5822.0 7.6 25.0 861 56.60 0.33
GEN7 POINT 5821.6 7.6 25.0 861 56.60 0.33
GEN8 POINT 5821.1 7.6 25.0 861 56.60 0.33
BOOST1 POINT 5823.7 7.6 25.0 944 16.47 0.33
BOOST2 POINT 5821.7 7.6 25.0 944 16.47 0.33
REB1 POINT 5822.5 5.5 18.0 450 6.10 0.30
REB2 POINT 5822.4 5.5 18.0 450 6.10 0.30
EGEN1 POINT 5823.6 5.5 18.0 765 16.73 0.46
EGEN2 POINT 5820.9 5.5 18.0 765 16.73 0.46
GEN9 POINT 5820.3 7.6 25.0 861 56.60 0.33
GEN10 POINT 5818.8 7.6 25.0 861 56.60 0.33
RES01 POINT 5448.7 7.6 25.0 861 56.60 0.33
RES02 POINT 5448.6 7.6 25.0 861 56.60 0.33
RES03 POINT 5448.3 7.6 25.0 861 56.60 0.33
RES04 POINT 5447.9 7.6 25.0 861 56.60 0.33
RES05 POINT 5447.9 7.6 25.0 861 56.60 0.33
RES06 POINT 5446.0 7.6 25.0 861 56.60 0.33
RES07 POINT 5445.6 7.6 25.0 861 56.60 0.33
RES08 POINT 5445.0 7.6 25.0 861 56.60 0.33
RES09 POINT 5444.4 7.6 25.0 861 56.60 0.33
RES10 POINT 5444.1 7.6 25.0 861 56.60 0.33
WLAT01 POINT 5477.6 7.6 25.0 861 56.60 0.33
WLAT02 POINT 5476.7 7.6 25.0 861 56.60 0.33
WLAT03 POINT 5476.2 7.6 25.0 861 56.60 0.33
WLAT04 POINT 5476.4 7.6 25.0 861 56.60 0.33
WLAT05 POINT 5477.0 7.6 25.0 861 56.60 0.33
WLAT06 POINT 5488.1 7.6 25.0 861 56.60 0.33
WLAT07 POINT 5487.7 7.6 25.0 861 56.60 0.33
WLAT08 POINT 5487.5 7.6 25.0 861 56.60 0.33
WLAT09 POINT 5486.5 7.6 25.0 861 56.60 0.33
WLAT10 POINT 5484.9 7.6 25.0 861 56.60 0.33
ENGINE1 POINT 5375.5 15.8 52.0 806 58.16 0.30
ENGINE2 POINT 5375.5 15.8 52.0 806 58.16 0.30
DAQE- MN161690003-24
Page 9
ENGINE3 POINT 5375.4 15.8 52.0 806 58.16 0.30
FLARE POINT 5378.0 21.3 70.0 811 96.81 0.30
UFLARE POINT 5325.1 21.3 70.0 811 96.81 0.30
HEATER POINT 5375.8 3.0 10.0 373 3.80 0.15
REBOILER POINT 5375.7 3.0 10.0 373 3.80 0.15
ENGINE4 POINT 5375.5 15.8 52.0 730 49.71 0.30
TNKHTR1 POINT 5375.5 6.1 20.0 373 3.80 0.15
TNKHTR2 POINT 5375.5 6.1 20.0 373 3.80 0.15
INCINER POINT 5375.6 6.1 20.0 981 1.92 1.22
ENGINE5 POINT 5375.5 15.8 52.0 806 58.16 0.30
PVGEN POINT 5374.0 2.4 8.0 704 28.46 0.15
TNKHTR3 POINT 5375.5 6.1 20.0 373 3.80 0.15
TNKHEAT POINT 5341.6 6.1 20.0 373 3.80 0.15
TNKHTR4 POINT 5375.5 6.1 20.0 373 3.80 0.15
SRC00041 POINT 5365.5 7.6 25.0 861 56.60 0.33
SRC00042 POINT 5366.2 7.6 25.0 861 56.60 0.33
SRC00043 POINT 5368.3 7.6 25.0 861 56.60 0.33
SRC00044 POINT 5369.9 7.6 25.0 861 56.60 0.33
SRC00045 POINT 5366.2 7.6 25.0 861 56.60 0.33
SRC00046 POINT 5366.7 7.6 25.0 861 56.60 0.33
SRC00047 POINT 5367.5 7.6 25.0 861 56.60 0.33
SRC00048 POINT 5368.8 7.6 25.0 861 56.60 0.33
SRC00049 POINT 5370.3 7.6 25.0 861 56.60 0.33
SRC00050 POINT 5366.9 7.6 25.0 861 56.60 0.33
MULL01 POINT 5270.6 7.6 25.0 861 56.60 0.33
MULL02 POINT 5269.8 7.6 25.0 861 56.60 0.33
MULL03 POINT 5268.7 7.6 25.0 861 56.60 0.33
MULL04 POINT 5267.4 7.6 25.0 861 56.60 0.33
MULL05 POINT 5266.0 7.6 25.0 861 56.60 0.33
MULL06 POINT 5260.5 7.6 25.0 861 56.60 0.33
MULL07 POINT 5259.6 7.6 25.0 861 56.60 0.33
MULL08 POINT 5259.0 7.6 25.0 861 56.60 0.33
MULL09 POINT 5258.7 7.6 25.0 861 56.60 0.33
MULL10 POINT 5258.3 7.6 25.0 861 56.60 0.33
CMBST POINT 5335.1 7.7 25.3 922 0.31 1.22

DAQE- MN161690003-24
Page 10

IV. RESULTS AND CONCLUSIONS

A. National Ambient Air Quality Standards

The below table provides a comparison of the predicted total air quality concentrations with the
NAAQS. The predicted total concentrations are less than the NAAQS.

Air
Pollutant
Period Prediction Class II
Significant
Impact
Level
Background Nearby
Sources*
Total NAAQS Percent
(μg/m3) (μg/m3) (μg/m3) (μg/m3) (μg/m3) (μg/m3) NAAQS
NO2
1-
Hour 76.8 7.5 36.6 16.3 129.7 188.0 69.0%

JK:jg

lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr
Engines
Compressor Engine 1 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Compressor Engine 2 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Compressor Engine 3 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Compressor Engine 4 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Generator Engine 0.55 2.40 1.10 4.81 0.38 1.68 0.053 0.231 0.00160 0.0070 0.088 0.39 0.056 0.24 318.8 1,396.2
Heaters
Tank Heater 0.049 0.21 0.041 0.18 0.0027 0.012 0.0037 0.016 0.00029 0.0013 0.00092 0.0040 - - 58.69 257.1
Control Devices
Tank Combustor - - - - - - - - - - - - - - - -
Flare - - - - - - - - - - - - - - - -
Liquids Loading
Atmospheric Liquids Loadout - - - - 0.91 0.046 - - - - - - - - - -
Pressurized Liquids Loadout - - - - 0.19 0.59 - - - - 0.014 0.044 - - - -
Venting Emissions
Compressor Blowdowns - - - - - 6.65 - - - - - 0.30 - - - 375.7
Compressor Rod Packing - - - - - 5.27 - - - - - 0.24 - - - 297.8
Pigging Venting - - - - - 7.71 - - - - - 0.35 - - - 435.2
Fugitive Emissions
Component Leak Emissions - - - - 0.039 0.17 - - - - 0.0023 0.010 - - 1.16 5.06
Storage Tanks
Produced Water Tanks - - - - 0.31 1.37 - - - - - - - - - -
Total Facility Uncontrolled PTE = 8.98 39.31 44.37 194.3 25.30 126.24 0.57 2.49 0.032 0.14 5.46 24.77 4.41 19.32 9,819 44,118
UNCONTROLLED POTENTIAL EMISSION SUMMARY
Source
NOx CO VOC PM SO2 HAPs Formaldehyde CO2e
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr
Engines
Compressor Engine 1 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Compressor Engine 2 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Compressor Engine 3 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Compressor Engine 4 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Generator Engine 0.55 2.40 1.10 4.81 0.38 1.68 0.053 0.231 0.00160 0.0070 0.088 0.39 0.056 0.24 318.8 1,396.2
Heaters
Tank Heater 0.049 0.21 0.041 0.18 0.0027 0.012 0.0037 0.016 0.00029 0.0013 0.00092 0.0040 - - 58.69 257.1
Control Devices
Tank Combustor 0.059 0.26 0.26 1.13 0.00017 0.00076 0.00024 0.0010 0.000019 0.000083 0.000059 0.00026 - - 100.5 440.4
Flare 0.022 0.097 0.089 0.39 0.00017 0.00076 0.00024 0.0010 0.000019 0.000083 0.000059 0.00026 - - 36.60 160.3
Liquids Loading
Atmospheric Liquids Loadout - - - - 0.91 0.046 - - - - - - - - - -
Pressurized Liquids Loadout - - - - 0.19 0.59 - - - - 0.014 0.044 - - - -
Venting Emissions
Compressor Blowdowns - - - - - 0.33 - - - - - 0.015 - - - 18.79
Compressor Rod Packing - - - - - 5.27 - - - - - 0.24 - - - 297.8
Pigging Venting - - - - - 0.39 - - - - - 0.017 - - - 21.76
Fugitive Emissions
Component Leak Emissions - - - - 0.039 0.17 - - - - 0.0023 0.010 - - 1.16 5.06
Storage Tanks
Produced Water Tanks - - - - 0.016 0.068 - - - - - - - - - -
Total Facility Controlled PTE = 9.06 39.67 9.86 43.20 11.60 52.59 0.57 2.49 0.032 0.14 2.42 10.84 1.92 8.42 9,956 43,948
Current Permit Facility-Wide PTE = 6.25 27.38 17.64 77.28 7.19 30.47 0.28 1.24 0.016 0.070 1.42 6.34 1.11 4.87 5,044 22,272
Difference = 2.81 12.29 -7.78 -34.08 4.41 22.12 0.29 1.25 0.016 0.070 1.00 4.50 0.81 3.55 4,913 21,676
CONTROLLED POTENTIAL EMISSION SUMMARY
Source
NOx CO VOC PM SO2 HAPs CO2eFormaldehyde
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
Source Information - Per Engine
Engine Make/Model
Service
Controls - Y or N / Type Y NSCR/AFRC
Site Horsepower Rating1 249 hp
Fuel Consumption (BSFC)2 10,906 Btu/(hp-hr)
Heat Rating2 2.72 MMBtu/hr
Fuel Consumption2,4 18.53 MMscf/yr
Fuel Consumption1 2,115 scf/hr
Fuel Consumption2 35 scf/min
Fuel Heating Value3 1,284 Btu/scf
Operating Hours 8,760 hrs/yr
(lb/MMBtu) (g/bhp-hr) (lb/hr) (lb/yr) (tons/yr)
NOx1 --- 1.00 0.55 --- 2.40 NSPS JJJJ Limit / EPA Certification - uncontrolled and controlled
CO1 --- 2.00 1.10 --- 4.81 NSPS JJJJ Limit / EPA Certification - uncontrolled and controlled
VOC1 --- 0.70 0.38 --- 1.68 NSPS JJJJ Limit / EPA Certification - uncontrolled and controlled
SO2 5.88E-04 --- 1.60E-03 --- 6.99E-03 AP-42, Chapter 3.2, Table 3.2-3
PM2.5/PM10 1.94E-02 --- 5.27E-02 --- 2.3E-01 AP-42, Chapter 3.2, Table 3.2-3, Filterable and condensible
1,1,2,2-Tetrachloroethane 2.53E-05 --- 6.87E-05 0.60 3.01E-04 AP-42, Chapter 3.2, Table 3.2-3
1,3-Butadiene 6.63E-04 --- 1.80E-03 15.77 7.89E-03 AP-42, Chapter 3.2, Table 3.2-3
Acetaldehyde 2.79E-03 --- 7.58E-03 66.37 3.32E-02 AP-42, Chapter 3.2, Table 3.2-3
Acrolein 2.63E-03 --- 7.14E-03 62.56 3.13E-02 AP-42, Chapter 3.2, Table 3.2-3
Benzene 1.58E-03 --- 4.29E-03 37.58 1.88E-02 AP-42, Chapter 3.2, Table 3.2-3
Ethylbenzene 2.48E-05 --- 6.73E-05 0.59 2.95E-04 AP-42, Chapter 3.2, Table 3.2-3
Formaldehyde 2.05E-02 --- 5.57E-02 487.7 2.44E-01 AP-42, Chapter 3.2, Table 3.2-3
Methanol 3.06E-03 --- 8.31E-03 72.79 3.64E-02 AP-42, Chapter 3.2, Table 3.2-3
Methylene Chloride 4.12E-05 --- 1.12E-04 0.98 4.90E-04 AP-42, Chapter 3.2, Table 3.2-3
PAH 1.41E-04 --- 3.83E-04 3.35 1.68E-03 AP-42, Chapter 3.2, Table 3.2-3
Toluene 5.58E-04 --- 1.52E-03 13.27 6.64E-03 AP-42, Chapter 3.2, Table 3.2-3
Xylenes 1.95E-04 --- 5.30E-04 4.64 2.32E-03 AP-42, Chapter 3.2, Table 3.2-3
Other HAPs2 2.10E-04 --- 5.70E-04 4.99 2.50E-03 AP-42, Chapter 3.2, Table 3.2-3
Total HAPS 0.088 771.2 0.39
(kg/MMBtu) (g/bhp-hr) (lb/hr) (lb/yr) (tons/yr)
CO2
1 53.06 --- 318.4 --- 1,394.7 40 CFR Part 98, Subpart C, Table C-1
CH4
1 0.0010 --- 0.0060 --- 0.026 40 CFR Part 98, Subpart C, Table C-2
N2O 0.00010 --- 0.00060 --- 0.0026 40 CFR Part 98, Subpart C, Table C-2
CO2e2 --- --- 318.8 --- 1,396.2 40 CFR Part 98, Subpart A, Table A-1, effective January 2014
1. Manufacturer specifications.
2. Calculated values.
3. Based on representative gas analyses.
4. Annual Emissions are based on engines operating with 100% fuel of total fuel usage running continuously, so as to be conservative.
Pollutant Emission Factor Estimated Emissions2
Source of Emissions Factors
Pollutant Emission Factor Estimated Emissions2
Generator Engine Emissions
PSI 11.1L NA
Generator
Uncontrolled & Controlled
Source of Emissions Factors
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
BACT Analysis
The Zager Booster Station will consist of production with modification of the compressor engines, flare,
compressor blowdowns, compressor rod packing, and component fugitives. The other existing sources are not
being modified at the Zager Booster Station, and the BACT submitted for permit DAQE-AN161690001-23
applies to the existing sources.

Utah Administrative Code (UAC) R307-401-2 defines BACT as:

“An emissions limitation (including a visible emission standard) based on the maximum degree of
reduction for each air pollutant which would be emitted from any proposed stationary source or
modification which the director, on a case-by-case basis, taking into account energy, environmental,
and economic impacts and other costs, determines is achievable for such source or modification
through application of production processes or available methods, systems, and techniques, including
fuel cleaning or treatment or innovative fuel combustion techniques for control of such pollutant. In
no event shall application of best available control technology result in emissions of any pollutant which
would exceed the emissions allowed by any applicable standard under 40 CFR Parts 60 and 61. If
the director determines that technological or economic limitations on the application of measurement
methodology to a particular emissions unit would make the imposition of an emissions standard
infeasible, a design, equipment, work practice, operational standard or combination thereof, may be
prescribed instead to satisfy the requirement for the application of best available control technology.
Such standard shall, to the degree possible, set forth the emissions reduction achievable by
implementation of such design, equipment, work practice or operation, and shall provide for
compliance by means which achieve equivalent results.”
UAC R307-401-8(a)(a) indicates that one condition for issuance of the AO is that the degree of pollution
control emissions, including fugitive emissions, is at least BACT.

Pollutants from the Zager Booster Station include PM10, PM2.5, NOX, SO2, CO, VOC, HAPs, and GHG. The
Facility is located in an attainment area for all pollutants monitored with the NAAQS except for ozone.

Engines
Each compressor engine will be equipped with an oxidation catalyst and an air fuel ratio controller (AFRC) to
control the emissions. The catalyst and AFRC will be provided by the company selling the engines. Proposed
emission limits for each of the engines have been included below. Uinta Wax considers these emissions
limitations to be BACT for the units. A cost feasibility analysis for the generator engine is attached to this
BACT analysis.
Unit Description NOx CO VOC
g/bhp-hr lb/hr g/bhp-hr lb/hr g/bhp-hr lb/hr
C-1 – C-4 Caterpillar
G3606LE 0.50 2.09 0.50 2.09 0.70 2.93
GEN Generator 1.00 2.40 2.00 4.81 0.70 1.68

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah

Compressor Blowdowns
The compressor blowdowns will be controlled by one (1) flare with a manufacturer reported control efficiency
of 98%. Conservatively, the emission calculations use 95% destruction efficiency. Uinta Wax considers this
control strategy to be BACT.
Compressor Rod Packing
Rod vent packing leak rates are highly variable over time making control equipment selection and sizing difficult.
Control devices such as flares or VRUs can create pressure build-up or vacuum conditions in the stream, which
can be detrimental to the operation of the reciprocating compressor.
The background documentation for 40 CFR 60 Subpart OOOOa (EPA-453/R-11-002) only explored control
of rod packing vents through maintenance techniques, so it is presumed that EPA also concluded that active
control of this type of emission source was infeasible. Current industry practice for controlling these emissions
centers on maintenance practices to reduce emissions from these sources.
It is proposed that BACT for control of emissions for rod packing vents are the maintenance practices required
as part of compliance with the standards for reciprocating compressors required by 40 CFR 60, Subpart
OOOOa. Each of the reciprocating compressors at this facility will be maintained with the maintenance
practices mandated by 40 CFR 60, Subpart OOOOa.
BACT Analysis Conclusions
Control
Equipment Control Equipment Description
Compressor
Engines
Each engine will come equipped with an oxidation catalyst and air-fuel ratio
controller
Generator Engine
Compressor
Blowdowns
Compressor blowdowns controlled by the flare with a conservative control
efficiency of 95%
Rod Packing Vents Maintenance practices as required by 40 CFR 60, Subpart OOOOa
Engine will come equipped certified with a non-selective catalyst and air-fuel
ratio controller
Company Name:Uinta Wax Operating, LLC
Facility Name:Zager Compressor Station
Best Available Control Technology Control Cost Analysis Worksheet
(Based on Office of Air Quality Planning and Standards, EPA, OAQPS Control Cost Manual, Fourth Edition, EPA 450/3-90-006, January 1990, Section 2.3.2)
Targeted Emission
Reference Site Control Controlled or Typical without with
No.Rating Manufacturer Model Method Targeted BACT Control Control
(units)Emission (units)(TPY)(TPY)
GEN 249 Doosan 11.1LNA Additional Catalyst NOx 0.5 g/bhp-hr 2.40 1.20
Reference Interest Control Capital Capital Annual Capital Realized
No.Rate System Life Recovery Factor Investment Maintenance Recovery Cost Economic
(i)(n)(CRF)(P)Cost (CRC)Benefit
GEN 0.1 3 0.402 $19,318 $6,867 $7,768 $0
"n" is the control system economic life. Catalyst guarantees are usually provided on 1 to 3 year intervals. Estimated conservatively for 3 years.
"i" is the considered the annual pretax marginal rate of return on private investment (i.e., what it may cost you to borrow the money).
"P" is the capital investment required to install the controls (i.e., equipment purchase cost, installation/retrofit cost, engineering, etc.).
Annual Maintenance Cost is the yearly costs to maintain the control effectiveness (i.e., cleaning, testing, etc).
CRC = CRF * P
CRC = Capital Recovery Cost (Annualized cost of control over the life of the control)
CRF = Capital recovery Factor
P = Capital Investment
CRF = i(1+i)n/(1+i)n-1
i = Annual Interest Rate
n = Economic life of the control
Total Annual Cost (TAC) = Annual Maintenance Cost + Capital Recovery Cost - Realized Economic Benefit
Cost to Control = TAC / (Targeted Emission Volume Without Control - Targeted Emission Volumn with Control)
Reference TAC Cost to Control
Number ($)($/Ton)
GEN $14,635 $12,196
Does the control have "Economic Reasonableness" and "Technical Practicability"?No
Costs determined from EPA memo titled "Control Costs for Existing Stationary SI RICE" in Section 4.3 for Non-
Selective Catalytic Reduction.
2/21/24, 11:09 AM State of Utah Mail - Fwd: Uinta Wax Operating, LLC Zager Booster Station - AO DAQE-AN161690001-23 Minor Modification
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-f:1791459071377125310&simpl=msg-f:1791459071377125310 1/2
Dungan Adams <[e-mail]>
Fwd: Uinta Wax Operating, LLC Zager Booster Station - AO DAQE-AN161690001-23
Minor Modification
1 message
Alan Humpherys <[e-mail]>Tue, Feb 20, 2024 at 3:34 PM
To: Dungan Adams <[e-mail]>
Dungan,
Can you please process this permit modification?
Site ID: 16169
Peer: Christine
Thanks,
Alan
---------- Forwarded message ---------
From: Kaitlin Meszaros <[e-mail]>
Date: Tue, Feb 20, 2024 at 11:49 AM
Subject: Uinta Wax Operating, LLC Zager Booster Station - AO DAQE-AN161690001-23 Minor Modification
To: Alan Humpherys <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Good morning, Alan,

Please find attached a modification application to add two (2) Caterpillar G3606LE compressor engines each with an
oxidation catalyst to the Uinta Wax Operating, LLC Zager Booster Station.

A redacted copy of the permit fee is enclosed in the application. It will be mailed today and delivered to UDAQ within a
week.

Should you have any questions, feel free to reach out to me at my contact information below.

Thank you,

Kaitlin Meszaros
Air Quality & Noise Specialist
2/21/24, 11:09 AM State of Utah Mail - Fwd: Uinta Wax Operating, LLC Zager Booster Station - AO DAQE-AN161690001-23 Minor Modification
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-f:1791459071377125310&simpl=msg-f:1791459071377125310 2/2
3222 S Vance St Suite 200
Lakewood, CO 80227
P: 303.980.5200 | D: 720.614.5598
E: [e-mail]
asdfrewq

--
Alan Humpherys
Manager | Minor NSR Section
P: [phone]
F: [phone]
airquality.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
UintaZagerBoosterStation APA final 2024-02-20.pdf
5739K
Dungan Adams <[e-mail]>
Modeling information for Uinta Wax Zager Booster Station
17 messages
Dungan Adams <[e-mail]>Fri, Mar 15, 2024 at 10:41 AM
To: [e-mail]
Cc: [e-mail]
Hi Kaitlin,
The Utah Division of Air Quality's modeling department will be conducting in-house modeling for this project. They just
requested the specific coordinates of each of the four compressor engines. Right now engines C1-C4 are all listed with
the same UTM coordinates (579775, 4440956).
Could you please update page 4 of Form 11 with the exact UTM coordinates of each engine and return the form to me?
Thanks,
Dungan
--

Dungan Adams
Environmental Engineer I | Minor NSR Section
M: [phone]
airquality.utah.gov
Form11.pdf
134K
Kaitlin Meszaros <[e-mail]>Fri, Mar 22, 2024 at 3:28 PM
To: Dungan Adams <[e-mail]>
Cc: "[e-mail]" <[e-mail]>
Hi Dungan,

Please find Form 11 that includes the stack locations and parameters for each of the four engines. We have
only included the emissions for one engine, but those totals should be applied to each of the engines.

Let me know if you have any questions or need anything else.

5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…1/9
You don't often get email from [e-mail]. Learn why this is important
Thanks,

Kaitlin Meszaros
Air Quality & Noise Specialist
Pinyon Environmental, Inc.
D: 720.614.5598

From: Dungan Adams <[e-mail]>
Sent: Friday, March 15, 2024 10:42 AM
To: Kaitlin Meszaros <[e-mail]>
Cc: [e-mail]
Subject: [EXTERNAL] Modeling informaon for Uinta Wax Zager Booster Staon

Hi Kaitlin,

The Utah Division of Air Quality's modeling department will be conducting in-house modeling for this project. They just
requested the specific coordinates of each of the four compressor engines. Right now engines C1-C4 are all listed with
the same UTM coordinates (579775, 4440956).

Could you please update page 4 of Form 11 with the exact UTM coordinates of each engine and return the form to me?

Thanks,
Dungan

--

[Quoted text hidden]
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…2/9
Form 11_Compressor Engines_Zager CS.pdf
107K
Dungan Adams <[e-mail]>Fri, Mar 22, 2024 at 3:33 PM
To: Kaitlin Meszaros <[e-mail]>
Cc: "[e-mail]" <[e-mail]>
Hi Kaitlin,
Thanks, I will pass this form along to our modeling department right away.
Thanks,
Dungan
[Quoted text hidden]
--

[Quoted text hidden]
Kaitlin Meszaros <[e-mail]>Thu, Apr 11, 2024 at 8:58 AM
To: Dungan Adams <[e-mail]>
Cc: "[e-mail]" <[e-mail]>
Hi Dungan,

Please find attached the revised documents for the generator to be a Doosan 11.1L rather than the 8T
model and for it to run 8,760 hours per year. Let me know if you have any questions or require additional
information.

Thank you,
[Quoted text hidden]
3 attachments
20240409 Form 11_Generator Engine.pdf
162K
20240409 BACT Analysis_Zager Booster Station.pdf
470K
20240409 EI_Zager Booster Station.pdf
90K
Karen Pratt <[e-mail]>Tue, Apr 16, 2024 at 8:58 AM
To: Dungan Adams <[e-mail]>
Cc: Kaitlin Meszaros <[e-mail]>
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…3/9
Dungan,

Hope you are having a good week so far. Do you have an estimate for when we might receive the issued
AO?

Karen Pratt
Regulatory Manager
Cell: 720-990-9927
978 Crescent Road
Roosevelt, UT 84066

[Quoted text hidden]
Dungan Adams <[e-mail]>Wed, Apr 17, 2024 at 9:14 AM
To: Karen Pratt <[e-mail]>
Cc: Kaitlin Meszaros <[e-mail]>
Hi Karen,
This project is currently being remodeled in-house by our modeling department. Once that is complete, I should be able to
provide a better estimate of the AO issue date. Modeling can take around 4 weeks depending on the workload of the
department and the nature of the project.
Thanks,
Dungan
[Quoted text hidden]
--

[Quoted text hidden]
Dungan Adams <[e-mail]>Mon, Apr 22, 2024 at 12:52 PM
To: Kaitlin Meszaros <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Hi Kaitlin,
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…4/9
One quick thing I wanted to bring up. The permitted emissions in the updated emission summary and the emission
summaries in the original NOI do match the emissions in the active approval order (AO) DAQE-AN161690001-23. There
isn't a huge discrepancy and no action needs to be taken, but the "Current Permit Facility-Wide PTE" and "Difference"
listed in the updated emission summary will be disregarded. I've attached the active AO and the updated emission
summary that I reference.
The project has been remodeled and still meets the NAAQS. Barring setbacks, my estimate for the issued AO is 2-3
months from now. I should have the engineering review for the project finished in a week. Internal reviews can take
around a month but are normally quicker. Then there will be a 30-day public comment period. Please let me know if you
have any other questions.
Thanks,
Dungan
[Quoted text hidden]
2 attachments
DAQE-AN161690001-23.pdf
329K
20240415 EI_Zager Booster Station.pdf
90K
Kaitlin Meszaros <[e-mail]>Mon, Apr 22, 2024 at 3:52 PM
To: Dungan Adams <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Thanks, Dungan. I’m not sure about the comment about the emissions difference. We’re adding two
compressor engines and didn’t change the NOx emissions rate, so I think the change from the current
permit and our proposed totals should be about double for at least NOx. We did reduce the CO emissions
rate for the compressor engines so I think that should be a net decrease. Can you point me to what you’re
looking at that the numbers are the same to the permit?
[Quoted text hidden]
Dungan Adams <[e-mail]>Mon, Apr 22, 2024 at 3:59 PM
To: Kaitlin Meszaros <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Hi Kaitlin,
The permitted emissions in the active AO do not match what you suggest the permitted emissions are in the NOI. I've
attached some screenshots.
Thanks,
Dungan
[Quoted text hidden]
--

[Quoted text hidden]
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…5/9
2 attachments
Screenshot 2024-04-22 155419.png
161K
Screenshot 2024-04-22 155341.png
70K
Karen Pratt <[e-mail]>Wed, Apr 24, 2024 at 5:13 PM
To: Dungan Adams <[e-mail]>, Kaitlin Meszaros <[e-mail]>
Dungan,

Was looking for your phone number. Wanted to see if the 3 of us could get on a call and chat about this
permit action.

Karen Pratt
Regulatory Manager
Cell: 720-990-9927
978 Crescent Road
Roosevelt, UT 84066

[Quoted text hidden]
Dungan Adams <[e-mail]>Wed, Apr 24, 2024 at 5:17 PM
To: Karen Pratt <[e-mail]>
Cc: Kaitlin Meszaros <[e-mail]>
Hi Karen,
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…6/9
Absolutely, I was just about to message you and Kaitin with another quick question. My phone number is 385-290-2474.
When would you like to call or have a meeting?
Thanks,
Dungan
[Quoted text hidden]
Karen Pratt <[e-mail]>Mon, Apr 29, 2024 at 8:02 AM
To: Dungan Adams <[e-mail]>, Kaitlin Meszaros <[e-mail]>
Did we resolve the mismatch in these screen shots?

Karen Pratt
Regulatory Manager
Cell: 720-990-9927
978 Crescent Road
Roosevelt, UT 84066

[Quoted text hidden]
Kaitlin Meszaros <[e-mail]>Mon, Apr 29, 2024 at 8:11 AM
To: Karen Pratt <[e-mail]>, Dungan Adams <[e-mail]>
Dungan can correct me, but the change is just in the original permitted emissions so the change in emissions as a result
of the modification were updated.
Kaitlin Meszaros
Air Quality & Noise Specialist
Pinyon Environmental, Inc.
D: 720.614.5598
From: Karen Pra <[e-mail]>
Sent: Monday, April 29, 2024 8:02:31 AM
To: Dungan Adams <[e-mail]>; Kaitlin Meszaros <[e-mail]>
[Quoted text hidden]

[Quoted text hidden]
Dungan Adams <[e-mail]>Mon, Apr 29, 2024 at 8:52 AM
To: Kaitlin Meszaros <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Kaitlin,
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…7/9
My understanding is the old NOI for the new source (submitted August 2, 2023) proposed a 118 hp generator engine to be
permitted for annual operation. The Approval Order (AO) DAQE-AN161690001-23, dated December 13, 2023, includes
only a 118 hp emergency generator which assumes 100 hours of annual operation. The current NOI for this modification
gets its "Current Permit Facility-Wide PTE" numbers from the old NOI and not the active AO. I think this is the same thing
as what you are saying, and the discrepancy isn't a big deal. The "Current Permit Facility-Wide PTE" will just come from
the active AO instead of the old NOI on my end -- you don't need to change or resubmit anything.
I can try to explain better when we meet.
Thanks,
Dungan
[Quoted text hidden]
Kaitlin Meszaros <[e-mail]>Mon, Apr 29, 2024 at 5:34 PM
To: Dungan Adams <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Hi Dungan,

Following our conversation this morning, the controlled rate for NMNEHC or VOC consistent with the 40
CFR Part 60 Subpart JJJJ definition is 0.6 g/bhp-hr. Since we were able to lower our NOx and CO from the
catalyst vendor, we were able to also get a better controlled rate for VOCs.

Let me know if you have any other questions or need anything else.
[Quoted text hidden]
Dungan Adams <[e-mail]>Tue, Apr 30, 2024 at 7:37 AM
To: Kaitlin Meszaros <[e-mail]>
Cc: Karen Pratt <[e-mail]>
Great. Thank you.
[Quoted text hidden]
--

[Quoted text hidden]
Dungan Adams <[e-mail]>Tue, Apr 30, 2024 at 2:11 PM
To: Karen Pratt <[e-mail]>
Cc: Kaitlin Meszaros <[e-mail]>
Hi Karen,
I am following up about the Utah Division of Air Quality's definition of construction. Any construction that is permanent is
prohibited until the AO is approved. If you need to temporarily move ground to prepare for construction that is normally
okay. If there is something specific you want to construct before the AO's approval, I can reach out to our compliance
division and get you a definitive answer.
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…8/9
Thanks,
Dungan
[Quoted text hidden]
5/1/24, 11:29 AM State of Utah Mail - Modeling information for Uinta Wax Zager Booster Station
https://mail.google.com/mail/u/0/?ik=c52f18613a&view=pt&search=all&permthid=thread-a:r6827911677873296336&simpl=msg-a:r490134863296684…9/9

February 20, 2024
State of Utah
Division of Air Quality
195 North 1950 West
Salt Lake City, UT 84114

Submitted via email

Subject: Uinta Wax Operating, LLC Zager Booster Station - Notice of Intent Application for Approval
Order (DAQE-AN161690001-23) Minor Modification
On behalf of Uinta Wax Operating, LLC (Uinta Wax), please find enclosed the Notice of Intent for Approval Order
(DAQE-AN161690001-23) Minor Modification Application for the Zager Booster Station located in Duchesne
County, Utah. The following changes are requested to the existing approval order:
 Add two (2) 1,900 horsepower (hp) Caterpillar G3606 LE compressor engines, each fitted with an oxidation
catalyst,
 Update the permitted two (2) 1,900 hp Caterpillar G3606 LE compressor engines emissions factors to 0.50
grams per brake horsepower-hour (g/bhp-hr) CO and 0.50 g/bhp-hr NOx,
 Update flare emissions for compressor blowdowns for proposed new compressors,
 Update venting episode emissions compressor rod packing for proposed new compressors, and
 Update fugitive leak emissions for proposed new compressors.

A copy of the check for $2,800.00 is included to cover the application fee and filing fee. It is being mailed to the
address above concurrently with this submittal.
Should you have any questions or comments about the application, please contact Kaitlin Meszaros by email at
[e-mail] or by phone at 631-245-0308. Thank you for your assistance in this matter.
Sincerely,
PINYON ENVIRONMENTAL, INC.,

Kaitlin Meszaros
Air Quality Specialist
cc:

Karen Pratt, Uinta Wax Operating, LLC
Kaylene Bridwell, Uinta Wax Operating, LLC

February 20, 2024
Notice of Intent (NOI) for Approval Order (DAQE-
AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station
Duchesne County, Utah
Pinyon Project No.:
1/24/1355-01

February 20, 2024
Notice of Intent (NOI) for Approval Order (DAQE-
AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station
Duchesne County, Utah
Pinyon Project No.:
1/24/1355-01

Prepared by:
___________________________
Kaitlin Meszaros
Air Quality Specialist

Reviewed by:

___________________________
Kaitlin Meszaros
Air Quality & Noise Specialist

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Table of Contents
Project Overview
UDAQ Registration Forms
Process Description
Process Flow Diagram
Source Location Map
Modified and Proposed Emissions Units
Emissions Calculations
BACT Analysis
Regulatory Discussion
Supporting Documentation

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Project Overview
Uinta Wax Operating, LLC (Uinta Wax) is submitting the Notice of the Intent (NOI) for Approval Order (AO)
(DAQE-AN161690001-23) minor modification application for the Zager Booster Station.

The enclosed application is to add the following emissions sources to the existing AO DAQE-
AN161690001-23):
 Two (2) 1,900 horsepower (hp) Caterpillar G3606 LE compressor engines, each fitted with an oxidation
catalyst.

The enclosed application is to modify the following emissions sources from the existing AO DAQE-
AN161690001-23):
 Two (2) 1,900 hp Caterpillar G3606 LE compressor engines, each fitted with an oxidation catalyst,
 One (1) flare for compressor blowdowns for proposed new compressors,
 Venting episode emissions for compressor rod packing for proposed new compressors, and
 Fugitive leak emissions for proposed new compressors.

The approved installations under AO DAQE-AN161690001-23, not modified with this application,
will consist of the following equipment:
 One (1) 118 hp PSI 8.1L NA certified emergency generator engine,
 One (1) 0.50 million British thermal unit per hour (MMBtu/hr) tank heater,
 Three (3) 1,000 barrel (bbl) produced water storage tanks,
 Four (4) 30,000 gallon (gal) pressurized bullet tanks,
 One (1) tank combustor for produced water storage tanks,
 Atmospheric loadout emissions,
 Pressurized loadout emissions, and
 Venting episode emissions for pigging venting.

The Facility is located in Duchesne County, Utah. Duchesne County is currently a designated attainment area
for carbon monoxide (CO), lead (Pb), nitrogen dioxide (NO2), particulate matter less than 10 microns in
diameter (PM10), particulate matter less than 2.5 microns in diameter (PM2.5), and sulfur dioxide (SO2).
Duchesne is currently a designated nonattainment area for ozone (O3).
New Source Performance Standards (NSPS) found in 40 CFR 60 Subparts A, JJJJ, and OOOOa apply to the
Facility. National Emission Standards for Hazardous Air Pollutants (NESHAP) found in 40 CFR 61 do not apply
to this Facility. Maximum Achievable Control Technology (MACT) regulations found in 40 CFR 63 Subparts A
and ZZZZ apply to the Facility. The requirements under MACT ZZZZ are met through compliance with NSPS
JJJJ. Best available control technology (BACT) will require the use of an oxidation catalyst to control criteria
pollutant emissions from the compressor engines.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
UDAQ Registration Forms

Form 1 Date __________________
Notice of Intent (NOI) Application Checklist
Company __________________
Utah Division of Air Quality
New Source Review Section
Source Identification Information [R307-401-5]
1. Company name, mailing address, physical address and telephone number o
2. Company contact (Name, mailing address, and telephone number)o
3. Name and contact of person submitting NOI application (if different than 2)o
4. Source Universal Transverse Mercator (UTM) coordinates o
5. Source Standard Industrial Classification (SIC) code o
6. Area designation (attainment, maintenance, or nonattainment)o
7. Federal/State requirement applicability (NAAQS, NSPS, MACT, SIP, etc.)o
8. Source size determination (Major, Minor, PSD)o
9. Current Approval Order(s) and/or Title V Permit numbers o
NOI Application Information: [R307-401]
o
o
o
o
o
o
o
o
o
o
o N/A o
o N/A o
A. Air quality analysis (air model, met data, background data, source impact analysis) o N/A o
1.Detailed description of the project and source process
2.Discussion of fuels, raw materials, and products consumed/produced
3.Description of equipment used in the process and operating schedule
4.Description of changes to the process, production rates, etc.
5.Site plan of source with building dimensions, stack parameters, etc.
6.Best Available Control Technology (BACT) Analysis [R307-401-8]
A.BACT analysis for all new and modified equipment
7.Emissions Related Information: [R307-401-2(b)]
A.Emission calculations for each new/modified unit and site-wide
(Include PM10, PM2.5, NOx, SO2, CO, VOCs, HAPs, and GHGs)
B.References/assumptions, SDS, for each calculation and pollutant
C.All speciated HAP emissions (list in lbs/hr)
8.Emissions Impact Analysis – Approved Modeling Protocol [R307-410]
A.Composition and physical characteristics of effluent
(emission rates, temperature, volume, pollutant types and concentrations)
9.Nonattainment/Maintenance Areas – Major NSR/Minor (offsetting only) [R307-403]
A.NAAQS demonstration, Lowest Achievable Emission Rate, Offset requirements
B.Alternative site analysis, Major source ownership compliance certification
10.Major Sources in Attainment or Unclassified Areas (PSD) [R307-405, R307-406]
B.Visibility impact analysis, Class I area impact
11. SignatureonApplication
o N/A o
Note: The Division of Air Quality will not accept documents containing confidential information or data.
Documents containing confidential information will be returned to the Source submitting the application.
Not Applicable
2/20/2024
Uinta Wax Operating, LLC
1 of 1
Form 2 Date ____________
Company Information/Notice of Intent (NOI)
Utah Division of Air Quality
New Source Review Section
Application for: □ Initial Approval Order □Approval Order Modification
General Owner and Source Information
1.Company name and mailing address:
____________________________
____________________________
____________________________
Phone No.: ( )
Fax No.: ( )
2. Company** contact for environmental matters:
____________________________
Phone no.: ( )
Email: _______________________
** Company contact only; consultant or independent contractor contact
information can be provided in a cover letter
3. Source name and physical address (if different from
above):____________________________
____________________________
____________________________
Phone no.: ( )
Fax no.: ( )
4. Source Property Universal Transverse Mercator
coordinates (UTM), including System and Datum:
UTM:_________________________
X:____________________________
Y:____________________________
5. The Source is located in:__________________ County 6.Standard Industrial Classification Code (SIC)
__ __ __ __
7. If request for modification, AO# to be modified: DAQE #__________________ DATED: ____/____/____
8. Brief (50 words or less) description of process.
Electronic NOI
9. A complete and accurate electronic NOI submitted to DAQ Permitting Mangers Jon Black ([e-mail]) or Alan
Humpherys ([e-mail]) can expedite review process. Please mark application type.
Hard Copy Submittal Electronic Copy Submittal □Both
Authorization/Signature
I hereby certify that the information and data submitted in and with this application is completely true, accurate and
complete, based on reasonable inquiry made by me and to the best of my knowledge and belief.
Signature: Title:
_______________________________________
Name (Type or print)
Telephone Number:
( )
Email:
Date:
X
2/20/2024
Uinta Wax Operating, LLC
5128 Apache Plume Rd, Suite 300
Fort Worth, TX 76106
[phone]
Karen Pratt
[phone]
[e-mail]
Zager Booster Station
Duchesne
12
579763
4440941
4922
AN161690001-23 12 13 2023
Uinta Wax Operating, LLC requests modification of an existing booster station to increase the number
of compressor engines located onsite to handle natural gas production being supplied to its gathering
system.
Regulatory Manager
Karen Pratt [phone]
[e-mail]
02/20/2024
Page 1 of 1
Company___________________________
Site_____________________________
Form 5
Emissions Information
Criteria/GHGs/ HAP’s
Utah Division of Air Quality
New Source Review Section
Potential to Emit* Criteria Pollutants & GHGs
Criteria Pollutants Permitted Emissions
(tons/yr)
Emissions Increases
(tons/yr)
Proposed Emissions
(tons/yr)
PM10 Total
PM10 Fugitive
PM2.5
NOx
SO2
CO
VOC
VOC Fugitive
NH3
Greenhouse Gases CO2e CO2e CO2e
CO2
CH4
N2O
HFCs
PFCs
SF6
Total CO2e
*Potential to emit to include pollution control equipment as defined by R307-401-2.
Hazardous Air Pollutants** (**Defined in Section 112(b) of the Clean Air Act )
Hazardous Air
Pollutant***
Permitted Emissions
(tons/yr)
Emission Increase
(tons/yr)
Proposed
Emission (tons/yr)
Emission Increase
(lbs/hr)
Total HAP
*** Use additional sheets for pollutants if needed
Uinta Wax Operating, LLC
Zager Booster Station
1.24 1.12 2.36
0.00 0.00 0.00
1.24 1.12 2.36
27.38 11.02 38.40
0.07 0.07 0.14
77.28 -36.61 40.67
30.47 21.24 51.71
0.09 0.17 0.17
0.00 0.00 0.00
17,493.47 16,097.00 33,591.00
191.20 190.20 381.40
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
0.00 0.00 0.00
22,272.00 20,870.00 43,142.00
Benzene 0.07 0.04 0.11 0.009
Toluene 0.05 0.03 0.08 0.007
Ethylbenzene 0.01 0.01 0.01 0.001
Xylenes 0.02 0.01 0.03 0.002
n-Hexane 0.32 0.23 0.55 0.05
Acetaldehyde 0.44 0.44 0.88 0.10
Acrolein 0.37 0.13 0.50 0.03
Methanol 0.19 0.06 0.25 0.02
Formaldehyde 4.87 3.41 8.28 0.78
6.34 4.35 10.69 0.98

Utah Division of Air Quality Company____________________________
New Source Review Section Site/Source__________________________
Date____________________
Form 2
Process Information

Process Data
1. Name of process:

2. End product of this process:

3. Primary process equipment: _______________ Manufacturer:__________________________________
Make or model: _________________________ Identification #: ________________________________
Capacity of equipment (lbs/hr): Year installed:__________________________________
Rated _____________ Max.____________
(Add additional sheets as needed)

4. Method of exhaust ventilation:
□ Stack □ Window fan □ Roof vent □ Other, describe _______________________

Are there multiple exhausts: □ Yes □ No
Operating Data

5. Maximum operating schedule:
__________ hrs/day
__________days/week
__________weeks/year

6. Percent annual production by quarter:
Winter ________ Spring _______
Summer ________ Fall ________

7. Hourly production rates (lbs.):

Average ________ Maximum ________

8. Maximum annual production (indicate units):
__________________
Projected percent annual increase in production:
__________________

9. Type of operation: □ Continuous
□ Batch
□ Intermittent

10. If batch, indicate minutes per cycle ________
Minutes between cycles ________

11. Materials used in process

Raw Materials

Principal Use

Amounts
(Specify Units)

Page 1 of 2
Uinta Wax Operating, LLC
Zager Booster Station / Fugitives
02/20/2024
Component Fugitive Emissions N/A
N/A
N/A
N/A N/A
N/A
N/A
N/A
X Fugitive Release Point(s)
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A N/A
N/A
N/A
X
N/A N/A N/A
Page 2 of 2

Process
Form 2 (Continued)

12. Control equipment (attach additional pages if necessary)

Item

Primary Collector

Secondary Collector

a. Type

b. Manufacturer

c. Model

d. Year installed

e. Serial or ID#

f. Pollutant controlled

g. Controlled pollutant emission
rate (if known)

h. Pressure drop across control
device

i. Design efficiency

j. Operating efficiency

Stack Data
(attach additional pages if necessary)

13. Stack identification:

14. Height: Above roof ________ft
Above ground ________ft

15. Are other sources vented to this stack:
□ Yes □ No

If yes, identify sources:

16. □ Round, top inside diameter dimension
_________
□ Rectangular, top inside dimensions
length ________ x width ________

17. Exit gas: Temperature ________ oF Volume ________ acfm Velocity ________ ft/min

18. Continuous monitoring equipment: □ yes □ no
If yes, indicate: Type ____________________ Manufacturer _________________________________

Make or Model ____________ Pollutant(s) monitored __________________________
Emissions Calculations (PTE)

19. Calculated emissions for this device
PM10 ___________ Lbs/hr___________ Tons/yr PM2.5 ____________ Lbs/hr ___________ Tons/yr
NOx____________ Lbs/hr___________ Tons/yr SOx _____________ Lbs/hr___________ Tons/yr
CO ____________ Lbs/hr___________ Tons/yr VOC _____________ Lbs/hr___________ Tons/yr
CO2 ___________ Tons/yr CH4 _____________ Tons/yr
N2O ____________Tons/yr
HAPs_________ Lb s/hr (speciate)__________Tons/yr (speciate)
Submit calculations as an appendix. If other pollutants are emitted, include the emissions in the appendix.
N/A - fugitive release point(s)
0.0063
0.010
0.17
0.0023
0.039
0.10
----
----
----
--
--
--
--
See emissions calculations for
speciated HAPs

Utah Division of Air Quality Company____________________________
New Source Review Section Site/Source__________________________
Date____________________
Form 2
Process Information

Process Data
1. Name of process:

2. End product of this process:

3. Primary process equipment: _______________ Manufacturer:__________________________________
Make or model: _________________________ Identification #: ________________________________
Capacity of equipment (lbs/hr): Year installed:__________________________________
Rated _____________ Max.____________
(Add additional sheets as needed)

4. Method of exhaust ventilation:
□ Stack □ Window fan □ Roof vent □ Other, describe _______________________

Are there multiple exhausts: □ Yes □ No
Operating Data

5. Maximum operating schedule:
__________ hrs/day
__________days/week
__________weeks/year

6. Percent annual production by quarter:
Winter ________ Spring _______
Summer ________ Fall ________

7. Hourly production rates (lbs.):

Average ________ Maximum ________

8. Maximum annual production (indicate units):
__________________
Projected percent annual increase in production:
__________________

9. Type of operation: □ Continuous
□ Batch
□ Intermittent

10. If batch, indicate minutes per cycle ________
Minutes between cycles ________

11. Materials used in process

Raw Materials

Principal Use

Amounts
(Specify Units)

Page 1 of 3
Uinta Wax Operating, LLC
Zager Booster Station / Rod Packing
2/20/2024
Compressor Rod Packing N/A
N/A
N/A
N/A
N/A
N/A
24
7
52
N/A N/A
X Rod packing vent
N/A
N/A
N/A
N/A
N/A N/A
X
N/A
N/A
N/A N/A N/A
Page 2 of 2

Process
Form 2 (Continued)

12. Control equipment (attach additional pages if necessary)

Item

Primary Collector

Secondary Collector

a. Type

b. Manufacturer

c. Model

d. Year installed

Serial or ID#e.

f. Pollutant controlled

Controlled pollutant emissiong.
rate (if known)

Pressure drop across controlh.
device

i. Design efficiency

j. Operating efficiency

Stack Data
(attach additional pages if necessary)

13. Stack identification:

________ft14. Height: Above roof
________ftAbove ground

15. Are other sources vented to this stack:
□ Yes □ No

If yes, identify sources:

16. □ Round, top inside diameter dimension
_________
□ Rectangular, top inside dimensions
length ________ x width ________

Temperature ________17. Exit gas:o Velocity ________ ft/minF Volume ________ acfm

18. Continuous monitoring equipment: □ yes □ no
If yes, indicate: Type ____________________ Manufacturer _________________________________

Make or Model ____________ Pollutant(s) monitored __________________________
Emissions Calculations (PTE)

19. Calculated emissions for this device
PM10 ___________ Lbs/hr___________ Tons/yr PM2.5 ____________ Lbs/hr ___________ Tons/yr
NOx____________ Lbs/hr___________ Tons/yr SOx _____________ Lbs/hr___________ Tons/yr
CO ____________ Lbs/hr___________ Tons/yr VOC _____________ Lbs/hr___________ Tons/yr
CO2 ___________ Tons/yr CH4 _____________ Tons/yr
N2O ____________Tons/yr
HAPs_________ Lb s/hr (speciate)__________Tons/yr (speciate)
Submit calculations as an appendix. If other pollutants are emitted, include the emissions in the appendix.
N/A - fugitive release point
5.27
0.24
--
--
--
--
--
--
--
--
--
--
--
--
See emissions calculations for
speciated HAPs

Utah Division of Air Quality
New Source Review Section Company___________________________
Site/Source__________________________
Form 4 Date_______________________________
Flare Systems

Equipment Information

1. Manufacturer:
_________________________
Model no.:
_________________________
(if available)

2. Design and operation shall be in accordance with 40CFR63.11. In addition
to the information listed in this form, provide the following: an assembly
drawing with dimensions, interior dimensions and features, flare’s
maximum capacity in BTU/hr.
3.Characteristics of Waste Gas Stream Input
Components Min. Value Expected
(scfm @ 68 oF, 14.7 psia)
Ave. Value Expected
(scfm @ 68oF, 14.7 psia)
Design Max.
(scfm @ 68oF, 14.7 psia)
a.

b.

c.

d.

e.

f.

g.

h.

4. Percent of time this
condition occurs

5. Flow rate: Minimum Expected Design Maximum Temp oF Pressure (psig)

Waste Gas Stream _______________ _______________ _______ ____________
Fuel Added to Gas Stream _______________ _______________ _______ ____________
Heat content of the gas to be flared ______________ BTU/ft3

6. Number of pilots

7. Type of fuel

8. Fuel Flow Rate (scfm @ 68oF & 14.7 psia) per pilot

Page 1 of 2
Uinta Wax Operating, LLC
Zager Booster Station / Flare
2/20/2024
TBD
TBD
Compressor Blowdowns
Pigging Venting
1.68
1.95
5.23 Mscf/day
2.50E-05 MMscf/hr 2.50E-05 MMscf/hr
1,284
1 Natural Gas 0.42 scfm
Page 2 of 2
Flare Systems
Form 4
(Continued)

Steam Injection

9. Steam pressure (psig)

Minimum Expected __________________
Design Maximum __________________

10. Total steam flow Rate (lb/hr)

11. Temperature (oF)

12. Velocity (ft/sec)

13. Number of jet streams

14. Diameter of steam jets (inches)

15. Design basis for steam injected (lb steam/lb hydrocarbon)
Water Injection

16. Water pressure (psig)

Minimum Expected __________________
Design Maximum __________________

17. Total Water Flow Rate (gpm)

Minimum Expected __________________
Design Maximum __________________

18. Number of water jets

19. Diameter of Water jets (inches)

20. Flare height (ft)

21. Flare tip inside diameter (ft)
Emissions Calculations (PTE)

22. Calculated emissions for this device
PM10 _________Lbs/hr_________ Tons/yr PM2.5 __________Lbs/hr________ Tons/yr
NOx __________Lbs/hr_________ Tons/yr SOx ___________Lbs/hr________ Tons/yr
CO __________Lbs/hr_________ Tons/yr VOC ___________Lbs/hr________Tons/yr
CO2 _________Tons/yr CH4 ___________Tons/yr
N2O _________Tons/yr
HAPs_________Lbs/hr (speciate)__________Tons/yr (speciate)
Submit calculations as an appendix. If other pollutants are emitted, include the emissions in the appendix.

N/A
N/A
2.39E-04 1.05E-03
0.089 0.39
200.8
0.00030
7.50E-03 0.033
2.39E-04 1.05E-03
1.89E-05 8.27E-05
0.16 0.72
1.62
0.022 0.097

Utah Division of Air Quality
New Source Review Section Company_______________________
Site/Source_____________________
Form 11 Date___________________________
Internal Combustion Engines

Equipment Information

1. Manufacturer: __________________________

Model no.: __________________________

The date the engine was constructed or
reconstructed ________________________

2. Operating time of Emission Source:
average maximum
______ Hours/day______ Hours/day
Days/week Days/week
______ Weeks/year______ Weeks/year

3. Manufacturer's rated output at baseload, ISO hp or Kw
Proposed site operating range _____________________________ hp or Kw

Gas Firing
4. Are you operating site equipment on pipeline quality natural gas: □ Yes □ No

5. Are you on an interruptible gas supply:
□ Yes □ No
If "yes", specify alternate fuel:
_______________________________

6. Annual consumption of fuel:

_____________________________ MMSCF/Year

7. Maximum firing rate:
_____________________________ BTU/hr

8. Average firing rate:
_____________________________ BTU/hr
Oil Firing
9. Type of oil:
Grade number □ 1 □ 2 □ 4 □ 5 □Other specify ___________6

10. Annual consumption: ______________ gallons

11. Heat content:______________ BTU/lb or
______________ BTU/gal

12. Sulfur content:___________% by weight

13. Ash content: ____________% by weight

14. Average firing rate: gal/hr

15. Maximum firing rate: gal/hr

16. Direction of firing: □ horizontal □ tangential □ other: (specify)

Page 1 of 4 
Zager Booster Station/ C-1-C-4
2/20/2024
Uinta Wax Operating, LLC
Caterpillar
G3606 LE
TBD
24
7
52
24
7
52
1,900 (each)
1,900 (each)
X
X
123.5 (each)
12,807,900 (each)
C-1 - C-4
12,807,900 (each)

Page 2 of 4 

Internal Combustion Engine
Form 11 (Continued)

Operation

17. Application:
□ Electric generation
______ Base load ______ Peaking
□ Emergency Generator
□ Driving pump/compressor
□ Exhaust heat recovery
□ Other (specify) ________________________

18. Cycle
□ Simple cycle
□ Regenerative cycle
□ Cogeneration
□ Combined cycle
Emissions Data

19. Manufacturer’s Emissions in grams per hour (gr/hp-hr): _______ NOX _______ CO ______ VOC
_______ Formaldehyde

20. Attach manufacturer's information showing emissions of NOx, CO, VOC, SOx, CH2O, PM10, PM 2.5 , CO2, CH4 and N2O
for each proposed fuel at engine loads and site ambient temperatures representative of the range of proposed
operation. The information must be sufficient to determine maximum hourly and annual emission rates. Annual
emissions may be based on a conservatively low approximation of site annual average temperature. Provide emissions
in pounds per hour and except for PM10 and PM2.5 parts per million by volume (ppmv) at actual conditions and corrected
to dry, 15% oxygen conditions.

Method of Emission Control:

□ Lean premix combustors □ Oxidation catalyst □ Water injection □ Other (specify)____________

□ Other low-NOx combustor □ SCR catalyst □ Steam injection

Additional Information

21. On separate sheets provide the following:

A. Details regarding principle of operation of emission controls. If add-on equipment is used, provide make and
model and manufacturer's information. Example details include: controller input variables and operational
algorithms for water or ammonia injection systems, combustion mode versus engine load for variable mode
combustors, etc.

B. Exhaust parameter information on attached form.

C. All calculations used for the annual emission estimates must be submitted with this form to be deemed
complete.

D. All formaldehyde emissions must be modeled as per Utah Administrative Code R307-410-5 using
SCREEN3.

E. If this form is filled out for a new source, forms 1 and 2 must be submitted also.

X
X
0.50 0.50 0.60
0.11
X X AFRC
Compression

Page 4 of 4 
INTERNAL COMBUSTION ENGINE
FORM 11 (continued)
EMISSION SOURCES

Review of applications and issuance of permits will be expedited by supplying all necessary information requested on this form.

AIR CONTAMINANT DATA EMISSION POINT DISCHARGE PARAMETERS
STACK SOURCES (7) EMISSION POINT
(1)
CHEMICAL COMPOSITION
OF TOTAL STREAM
AIR
CONTAMINANT
EMISSION RATE

UTM COORDINATES OF
EMISSION PT. (6) EXIT DATA
NUMBER NAME
COMPONENT OR AIR
CONTAMINANT NAME
(2)

CONC.
(%V) (3)

LB/HR
(4)

TONS/YR
(5)

ZONE

EAST
(METERS)

NORTH
(METERS)

HEIGHT
ABOVE
GROUND
(FT)

HEIGHT
ABOVE
STRUCT.
(FT)

DIA.
(FT)

VELO.
(FPS)

TEMP.
(OF)

GROUND ELEVATION OF FACILITY ABOVE MEAN SEA LEVEL _______________ feet.
UTAH AIR CONSERVATION BOARD STANDARD CONDITIONS ARE 68O F AND 14.7 PSIA.

General Instructions for this form.
1. Identify each emission; point with a unique number for this plant site on plot plan, previous permits and emission inventory questionnaire. Limit emission point number to 8 character spaces. For each
emission point use as many lines as necessary to list air contaminant data. Typical emission point names are: heater, vent, boiler, tank, reactor, separator, baghouse, fugitive, etc. Abbreviations are OK.
2. Typical component names are: air, H2O, nitrogen, oxygen, CO2, CO, NOx, SOx, hexane, particulate matter (PM10 and PM2.5), etc. Abbreviations are OK.
3. Concentration data is required for all gaseous components. Show concentration in volume percent of total gas stream.
4. Pounds per hour. (#/hr) is maximum emission rate expected by applicant.
5. Tons per year (T/Y) is annual maximum emission rate expected by applicant, which takes into account process operating schedule.
6. As a minimum applicant must furnish a facility plot plan drawn to scale showing a plant benchmark, latitude and longitude correct to the nearest second for the benchmark, and all emission points dimensioned
with respect to the benchmark. Please show emission point UTM coordinates if known.
7. Supply additional information as follows if appropriate:
(a) Stack exit configuration other than a round vertical stack. Show length and width for a rectangular stack. Indicate if horizontal discharge with a note.
(b) Stack's height above supporting or adjacent structures if structure is within three "stack heights above ground" of stack.

C-1 - C-4 Comp NOx
CO
VOC
SO2
PM10
PM2.5
HCHO
12 579775 4440956 1.18 207.2 8422.09 9.17
2.09 9.17
2.51 11.01
0.0075 0.033
0.13 0.56
0.13 0.56
0.47 2.04
5,324
The emissions presented below are for one (1) engine.
There will be two (2) engines in operation.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Process Description

The Zager Booster Station will include the following emissions sources:
 Four (4) 1,900 hp Caterpillar G3606 LE compressor engines each fitted with an oxidation catalyst,
 One (1) 118 hp PSI 8.1L NA certified emergency generator engine,
 One (1) 0.50 million British thermal unit per hour (MMBtu/hr) tank heater,
 Three (3) 1,000 barrel (bbl) produced water storage tanks,
 Four (4) 30,000 gallon (gal) pressurized bullet tanks,
 One (1) tank combustor for produced water storage tanks,
 One (1) flare for compressor blowdowns and pigging venting,
 Atmospheric loadout emissions,
 Pressurized loadout emissions,
 Venting episode emissions for compressor rod packing, and
 Fugitive leak emissions.

Conventional gas enters the station and is fed to an inlet slug catcher. Produced water from the inlet slug
catcher is stored in atmospheric storage tanks while overhead gas enters compression. Produced water from
the scrubber dump prior to the first stage of compression is fed to the atmospheric storage tanks. Liquids
condensed following stages of compression are routed to a three-phase separator that operates at
approximately 75 psig. Produced water from the separator is fed to the atmospheric storage tanks, the
overhead vapors are recycled to the station inlet, and liquids are routed to the three-phase separator or bullet
tanks. Produced water is transported offsite by truck. Vapors from the atmospheric produced water storage
tanks are controlled by a combustor. Due to a lack of available power, an emergency generator is used to
power the Zager Booster Station.

After passing through compression, the gas is sent to sales. Liquids from the three-phase separator are stored
in bullet tanks at a pressure of approximately 220 psig. Any gas off the three-phase separator and bullet tanks
is captured by an electric vapor recovery unit and routed to the sales line. Pressurized liquids are transported
offsite by pressurized truck.

The emergency flare is used to control emissions resulting from gas unable to be sent via pipeline. Fugitive
emissions from component leaks and emissions from compressor blowdowns, compressor rod packing, and
pigging venting also occur. Vapors from compressor blowdowns and pigging venting are controlled by the flare.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Process Flow Diagram

Gas
Water
Oil
Process Flow Diagram
Zager Booster Station
Duchesne County, Utah
Gas to Sales
Inlet Slug
Catcher
3-Phase
Separator
Water
Tanks
X 3
NGL Bullet
Tanks X 4
NGL
Truck Loadout
Flare
Combustor
Truck Loadout
118 hp PSI 8.1L NA
generator engine (GEN-1)
Electric
VRU
Site Inlet c
1
o
,
m
90
p
0
re
h
s
p
so
C
r
a
e
t
n
e
g
rp
in
il
e
la
s
r
(
G
C-
3
1
6
–
06
C
L
-
E
4)

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Source Location Map
FACILITY MAPZager Booster StationUinta Wax Operating, LLCDuchesne C ounty, Utah
Date: 7/6/2023Figure 1Drawn By: MJS
Reviewed By: VRPinyon Project Number: 1/22-1358-03
Site Location: Latitude/longitude: 40.115, -110.064
Document Path: D:\PROJECTS\2022\122135803 Uinta Wax Air Quality 2022\Figures\ArcMap\MXDs\AQ001_Zager Booster Station.mxd
0 10.5 Miles
Legend
")Zager Booster Station
Straight Line D istance to Myton, UT
I

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Modified and Proposed Emission Units

Modified and Proposed Caterpillar G3606 LE
Four (4) four-stroke lean burn natural gas fired 1,900 hp Caterpillar G3606 LE compressor engines will be
located at the Zager Booster Station; two existing permitted and two proposed new. The engines are subject
to the requirements of 40 CFR 60, Subpart JJJJ, and 40 CFR 63, Subpart ZZZZ. The purpose of the compressor
engines is to increase the pressure of the gas to move the gas throughout the field.

Fuel Type & Quantity: The engines will have a total combined field gas consumption rate of 494 million
cubic feet per year (MMscf/yr), 1.35 million cubic feet per day (MMscf/d), or 56,400 standard cubic feet per
hour (scf/hr). The estimated heating value of the field gas is 1,284 British thermal units per standard cubic foot
(Btu/scf). The percent sulfur of the fuel is assumed to be a maximum of 0.0025% or 25 parts per million (ppm).
Raw Materials & Final Products: No raw materials will be used, or final products created for these engines.
Operating Schedule: The engines will have a normal operating schedule of 24 hours per day, 7 days per
week, 52 weeks per year, for a total of 8,760 hours per year.
Emission Controls & Factors: Each engine has been built with an oxidation catalyst. The emission factors
used to calculate actual emissions of the engines are provided in AP-42 Chapter 3.2-2 and the following
manufacturer specifications:
 NOx: 0.50 g/hp-hr
 CO: 0.50 g/hp-hr
 VOC: 0.60 g/hp-hr
 Formaldehyde (HCHO): 0.11 g/hp-hr
Hazardous air pollutants (HAPs) that are also VOCs, except for aldehydes, are reduced by the same efficiency
as the VOCs. This is footnoted in the emissions calculations.

Modified Flare
There will be one (1) flare used to control VOC and HAP emissions from the compressor blowdowns and
pigging venting located at the Zager Booster Station.
Fuel Type & Quantity: The flare will have a total combined field gas consumption rate of 5.23 Mscf/day, 1.91
MMscf/yr, and 217 scf/hr and a pilot fuel consumption rate of 25 scf/hr.
Raw Materials & Final Products: No raw materials will be used, or final products created for the flare.
Operating Schedule: The flare will only be used as needed, but the pilot will be continuously lit. The pigging
and compressor blowdowns will primarily be conducted on a defined schedule. Each compressor will have an
expected 52 blowdown events per year per compressor. The two 8-inch pigs will be vented at an expected
730 events per year per vessel, and the 16-inch vessel will be vented at an expected 52 events per year.
Emission Controls & Factors: The flare will control all emissions from the compressor blowdowns and
pigging venting. Emissions are calculated using engineering estimates and AP-42 Section 1.4-1, 1.4-2, 1.4-3, 1.4-
4, and 13.5-1.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah

Modified Venting Episode Emissions
There will be compressor rod packing at the Zager Booster Station.
Fuel Type & Quantity: Not applicable.
Raw Materials & Final Products: No raw materials will be used, or final products created for the venting
episode.
Operating Schedule: Rod packing is a continuous vent as a result of the compressor operation. The rod
packing is estimated to vent at a rate of 20 scf/hr per engine.
Emission Controls & Factors: There is no control of emissions for compressor rod packing. Emissions are
calculated using engineering estimates.
Modified Component Fugitive Emissions
Equipment components in liquid service, such as flanges, valves, connectors, open-ended lines, and pressure
relief valves, and equipment components in gas service, such as flanges, valves, connectors, open-ended lines,
and pressure relief valves, have the potential to leak hydrocarbon emissions during normal operations. Based
on the Facility’s equipment counts, the number of components was estimated using 40 CFR Part 98 Subpart
W Tables W-1B and W-1C for production equipment in the Western United States. The total number of
components in each service was multiplied by the kilogram per hour emission factors obtained from, EPA-
453/R-95-017: Protocol for Equipment Leak Emissions Estimates Table 2-8 to find the total mass emitted from
each component by service. The Facility will implement a fugitive leak detection and repair program per NSPS
OOOOa. Therefore, the emission factors for a leak detection threshold of 10,000 parts per million by volume
were used. Once total mass emissions were calculated, the average composition of each stream (service) was
used to determine the emissions based on species.
Fuel Type & Quantity: Not applicable
Raw Materials & Final Products: No raw materials will be used, or final products created for the
component fugitive emissions.
Operating Schedule: Not applicable
Emission Controls & Factors: There are no controls associated with component fugitive emissions.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Emissions Calculations

lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr
Engines
Compressor Engine 1 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Compressor Engine 2 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Compressor Engine 3 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Compressor Engine 4 2.09 9.17 10.81 47.33 5.86 25.69 0.13 0.56 0.0075 0.033 1.34 5.86 1.09 4.77 2,360 10,338
Generator Engine 0.26 1.14 0.52 2.28 0.18 0.80 0.022 0.098 0.00067 0.0030 0.037 0.16 0.024 0.10 134.7 590.1
Heaters
Tank Heater 0.049 0.21 0.041 0.18 0.0027 0.012 0.0037 0.016 0.00029 0.0013 0.00092 0.0040 --58.69 257.1
Control Devices
Tank Combustor ----------------
Flare ----------------
Liquids Loading
Atmospheric Liquids Loadout ----0.91 0.046 ----------
Pressurized Liquids Loadout ----0.19 0.59 ----0.014 0.044 ----
Venting Emissions
Compressor Blowdowns -----6.65 -----0.30 ---375.7
Compressor Rod Packing -----5.27 -----0.24 ---297.8
Pigging Venting -----7.71 -----0.35 ---435.2
Fugitive Emissions
Component Leak Emissions ----0.039 0.17 ----0.0023 0.010 --1.16 5.06
Storage Tanks
Produced Water Tanks ----0.31 1.37 ----------
Total Facility Uncontrolled PTE = 8.69 38.05 43.79 191.8 25.09 125.36 0.54 2.35 0.031 0.14 5.40 24.55 4.38 19.18 9,635 43,312
UNCONTROLLED POTENTIAL EMISSION SUMMARY
Source NOx CO VOC PM SO2 HAPs Formaldehyde CO2e
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr
Engines
Compressor Engine 1 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Compressor Engine 2 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Compressor Engine 3 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Compressor Engine 4 2.09 9.17 2.09 9.17 2.51 11.01 0.13 0.56 0.0075 0.033 0.58 2.53 0.47 2.04 2,360 10,338
Generator Engine 0.26 1.14 0.52 2.28 0.18 0.80 0.022 0.098 0.00067 0.0030 0.037 0.16 0.024 0.10 134.7 590.1
Heaters
Tank Heater 0.049 0.21 0.041 0.18 0.0027 0.012 0.0037 0.016 0.00029 0.0013 0.00092 0.0040 --58.69 257.1
Control Devices
Tank Combustor 0.059 0.26 0.26 1.13 0.00017 0.00076 0.00024 0.0010 0.000019 0.000083 0.000059 0.00026 --100.5 440.4
Flare 0.022 0.097 0.089 0.39 0.00017 0.00076 0.00024 0.0010 0.000019 0.000083 0.000059 0.00026 --36.60 160.3
Liquids Loading
Atmospheric Liquids Loadout ----0.91 0.046 ----------
Pressurized Liquids Loadout ----0.19 0.59 ----0.014 0.044 ----
Venting Emissions
Compressor Blowdowns -----0.33 -----0.015 ---18.79
Compressor Rod Packing -----5.27 -----0.24 ---297.8
Pigging Venting -----0.39 -----0.017 ---21.76
Fugitive Emissions
Component Leak Emissions ----0.039 0.17 ----0.0023 0.010 --1.16 5.06
Storage Tanks
Produced Water Tanks ----0.016 0.068 ----------
Total Facility Controlled PTE = 8.77 38.40 9.29 40.67 11.39 51.71 0.54 2.36 0.031 0.14 2.37 10.62 1.89 8.28 9,772 43,142
Current Permit Facility-Wide PTE = 6.25 27.38 17.64 77.28 7.19 30.47 0.28 1.24 0.016 0.070 1.42 6.34 1.11 4.87 5,044 22,272
Difference = 2.52 11.02 -8.36 -36.61 4.21 21.24 0.26 1.12 0.015 0.066 0.95 4.28 0.78 3.41 4,729 20,870
CONTROLLED POTENTIAL EMISSION SUMMARY
Source NOx CO VOC PM SO2 HAPs CO2eFormaldehyde
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr
Engines
Compressor Engine 1 0.0056 0.025 0.0052 0.023 0.00051 0.0022 0.0024 0.010 0.014 0.062 0.11 0.47 0.066 0.29 0.032 0.14
Compressor Engine 2 0.0056 0.025 0.0052 0.023 0.00051 0.0022 0.0024 0.010 0.014 0.062 0.11 0.47 0.066 0.29 0.032 0.14
Compressor Engine 3 0.0056 0.025 0.0052 0.023 0.00051 0.0022 0.0024 0.010 0.014 0.062 0.11 0.47 0.066 0.29 0.032 0.14
Compressor Engine 4 0.0056 0.025 0.0052 0.023 0.00051 0.0022 0.0024 0.010 0.014 0.062 0.11 0.47 0.066 0.29 0.032 0.14
Generator Engine 0.0018 0.0079 0.00064 0.0028 0.000028 0.00012 0.00022 0.00098 --0.0032 0.014 0.0030 0.013 0.0035 0.015
Heaters
Tank Heater ----------------
Control Devices
Tank Combustor ----------------
Flare ----------------
Liquids Loading
Atmospheric Liquids Loadout ----------------
Pressurized Liquids Loadout 0.00090 0.0028 0.000077 0.00024 0.0000070 0.000022 0.0000036 0.000011 0.013 0.041 ------
Venting Emissions
Compressor Blowdowns 0.0076 0.033 0.0052 0.023 0.0011 0.0048 0.0015 0.0066 0.054 0.23 ------
Compressor Rod Packing 0.0060 0.026 0.0041 0.018 0.00087 0.0038 0.0012 0.0052 0.042 0.19 ------
Pigging Venting 0.0088 0.039 0.0060 0.026 0.0013 0.0056 0.0017 0.0076 0.062 0.27 ------
Fugitive Emissions
Component Leak Emissions 0.00019 0.00084 0.000077 0.00034 0.000015 0.000067 0.000020 0.000090 0.0020 0.0088 ------
Storage Tanks
Produced Water Tanks ----------------
Total Facility Uncontrolled PTE = 0.048 0.21 0.037 0.16 0.0053 0.023 0.014 0.062 0.23 0.99 0.43 1.89 0.27 1.17 0.13 0.58
Methanol
UNCONTROLLED POTENTIAL EMISSION SUMMARY
Source
Benzene Toluene Ethylbenzene Xylenes n-Hexane Acetaldehyde Acrolein
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr lb/hr ton/yr
Engines
Compressor Engine 1 0.0024 0.010 0.0022 0.010 0.00021 0.0009 0.0010 0.0044 0.0060 0.026 0.049 0.22 0.028 0.12 0.013 0.059
Compressor Engine 2 0.0024 0.010 0.0022 0.010 0.00021 0.0009 0.0010 0.0044 0.0060 0.026 0.049 0.22 0.028 0.12 0.013 0.059
Compressor Engine 3 0.0024 0.010 0.0022 0.010 0.00021 0.0009 0.0010 0.0044 0.0060 0.026 0.049 0.22 0.028 0.12 0.013 0.059
Compressor Engine 4 0.0024 0.010 0.0022 0.010 0.00021 0.0009 0.0010 0.0044 0.0060 0.026 0.049 0.22 0.028 0.12 0.013 0.059
Generator Engine 0.0018 0.0079 0.00064 0.0028 0.000028 0.00012 0.00022 0.00098 --0.0032 0.014 0.0030 0.013 0.0035 0.015
Heaters
Tank Heater ----------------
Control Devices
Tank Combustor ----------------
Flare ----------------
Hydrocarbon Loading
Atmospheric Liquids Loadout ----------------
Pressurized Liquids Loadout 0.00090 0.0028 0.000077 0.00024 0.0000070 0.000022 0.0000036 0.000011 0.013 0.041
Venting Emissions
Compressor Blowdowns 0.00038 0.0017 0.00026 0.0011 0.000055 0.00024 0.000075 0.00033 0.0027 0.012 ------
Compressor Rod Packing 0.0060 0.026 0.0041 0.018 0.00087 0.0038 0.0012 0.0052 0.042 0.19
Pigging Venting 0.0064 0.028 0.0043 0.019 0.00092 0.0040 0.0013 0.0055 0.045 0.20 ------
Fugitive Emissions
Component Leak Emissions 0.00019 0.00084 0.000077 0.00034 0.000015 0.000067 0.000020 0.000090 0.0020 0.0088 ------
Storage Tanks
Produced Water Tanks ----------------
Total Facility Controlled PTE = 0.025 0.11 0.018 0.080 0.0027 0.012 0.0067 0.029 0.13 0.55 0.20 0.88 0.11 0.50 0.057 0.25
Current Permit Facility-Wide PTE = 0.016 0.070 0.012 0.051 0.0016 0.0070 0.0044 0.019 0.078 0.32 0.10 0.44 0.084 0.37 0.043 0.19
Difference = 0.009 0.039 0.007 0.029 0.0011 0.0050 0.0023 0.010 0.051 0.23 0.098 0.44 0.030 0.13 0.015 0.06
Methanol
CONTROLLED POTENTIAL EMISSION SUMMARY
Source
Benzene Toluene Ethylbenzene Xylenes n-Hexane Acetaldehyde Acrolein
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
Source Information-Per Engine
Engine Make/Model
Service
Controls - Y or N / Type Y Oxidation
Site Horsepower Rating1 1,900 hp
Fuel Consumption (BSFC)1 6,741 Btu/(hp-hr)
Heat Rating2 12.81 MMBtu/hr
Fuel Consumption2,4 123.5 MMscf/yr
Fuel Consumption2 14,100 scf/hr
Fuel Consumption1 235 scf/min
Fuel Heating Value3 1,284 Btu/scf
Operating Hours 8,760 hrs/yr
(lb/MMBtu)(g/bhp-hr)(lb/hr)(lb/yr) (ton/yr) (lb/MMBtu)(g/bhp-hr)(lb/hr)(lb/yr) (ton/yr)
NOx1 ---0.50 2.09 ---9.17 ---0.50 2.09 ---9.17 Manufacturer's Specs - uncontrolled and controlled
CO1 ---2.58 10.81 ---47.33 ---0.50 2.09 ---9.17 Manufacturer's Specs - uncontrolled and controlled
VOC1 ---1.40 5.86 ---25.69 ---0.60 2.51 ---11.01 Manufacturer's Specs - uncontrolled and controlled
SO2 5.88E-04 ---7.53E-03 ---3.30E-02 5.88E-04 ---7.53E-03 ---3.30E-02 AP-42, Chapter 3.2, Table 3.2-2
PM2.5/PM10 9.99E-03 ---1.28E-01 ---5.60E-01 9.99E-03 ---1.28E-01 ---5.60E-01 AP-42, Chapter 3.2, Table 3.2-2, Filterable and condensable
1,3-Butadiene 2.67E-04 ---3.42E-03 29.96 1.50E-02 1.13E-04 ---1.44E-03 12.62 6.31E-03 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
2-Methylnaphthalene 3.32E-05 ---4.25E-04 3.72 1.86E-03 3.32E-05 ---4.25E-04 3.72 1.86E-03 AP-42, Chapter 3.2, Table 3.2-2
2,2,4-Trimethylpentane 2.50E-04 ---3.20E-03 28.05 1.40E-02 1.05E-04 ---1.35E-03 11.82 5.91E-03 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Acenaphthene 1.25E-06 ---1.60E-05 0.14 7.01E-05 1.25E-06 ---1.60E-05 0.14 7.01E-05 AP-42, Chapter 3.2, Table 3.2-2
Acenaphthylene 5.53E-06 ---7.08E-05 0.62 3.10E-04 5.53E-06 ---7.08E-05 0.62 3.10E-04 AP-42, Chapter 3.2, Table 3.2-2
Acetaldehyde 8.36E-03 ---1.07E-01 938.0 4.69E-01 3.84E-03 ---4.92E-02 430.8 2.15E-01 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Acrolein 5.14E-03 ---6.58E-02 576.7 2.88E-01 2.17E-03 ---2.77E-02 243.0 1.22E-01 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Benzene 4.40E-04 ---5.64E-03 49.37 2.47E-02 1.85E-04 ---2.37E-03 20.80 1.04E-02 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Benzo(b)fluoranthene 1.66E-07 ---2.13E-06 0.019 9.31E-06 1.66E-07 ---2.13E-06 0.019 9.31E-06 AP-42, Chapter 3.2, Table 3.2-2
Benzo(e)pyrene 4.15E-07 ---5.32E-06 0.047 2.33E-05 4.15E-07 ---5.32E-06 0.047 2.33E-05 AP-42, Chapter 3.2, Table 3.2-2
Benzo(g,h,i)perylene 4.14E-07 ---5.30E-06 0.046 2.32E-05 4.14E-07 ---5.30E-06 0.046 2.32E-05 AP-42, Chapter 3.2, Table 3.2-2
Biphenyl 2.12E-04 ---2.72E-03 23.79 1.19E-02 8.93E-05 ---1.14E-03 10.02 5.01E-03 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Chrysene 6.93E-07 ---8.88E-06 0.078 3.89E-05 6.93E-07 ---8.88E-06 0.078 3.89E-05 AP-42, Chapter 3.2, Table 3.2-2
Ethylbenzene 3.97E-05 ---5.08E-04 4.45 2.23E-03 1.67E-05 ---2.14E-04 1.88 9.39E-04 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Fluoranthene 1.11E-06 ---1.42E-05 0.12 6.23E-05 1.11E-06 ---1.42E-05 0.12 6.23E-05 AP-42, Chapter 3.2, Table 3.2-2
Fluorene 5.67E-06 ---7.26E-05 0.64 3.18E-04 5.67E-06 ---7.26E-05 0.64 3.18E-04 AP-42, Chapter 3.2, Table 3.2-2
Formaldehyde ---0.26 1.09E+00 9,540 4.77E+00 ---0.11 4.67E-01 4,089 2.04E+00 Manufacturer's Specs - uncontrolled. Assumes same reduction in aldehydes as VOC.
Methanol 2.50E-03 ---3.20E-02 280.5 1.40E-01 1.05E-03 ---1.35E-02 118.2 5.91E-02 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Methylene Chloride 2.00E-05 ---2.56E-04 2.24 1.12E-03 8.43E-06 ---1.08E-04 0.95 4.73E-04 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
n-Hexane 1.11E-03 ---1.42E-02 124.5 6.23E-02 4.68E-04 ---5.99E-03 52.5 2.62E-02 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Naphthalene 7.44E-05 ---9.53E-04 8.35 4.17E-03 3.14E-05 ---4.02E-04 3.52 1.76E-03 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
PAH 2.69E-05 ---3.45E-04 3.02 1.51E-03 2.69E-05 ---3.45E-04 3.02 1.51E-03 AP-42, Chapter 3.2, Table 3.2-2
Phenanthrene 1.04E-05 ---1.33E-04 1.17 5.83E-04 1.04E-05 ---1.33E-04 1.17 5.83E-04 AP-42, Chapter 3.2, Table 3.2-2
Phenol 2.40E-05 ---3.07E-04 2.69 1.35E-03 1.01E-05 ---1.30E-04 1.13 5.67E-04 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Pyrene 1.36E-06 ---1.74E-05 0.15 7.63E-05 1.36E-06 ---1.74E-05 0.15 7.63E-05 AP-42, Chapter 3.2, Table 3.2-2
Tetrachloroethane 2.48E-06 ---3.18E-05 0.28 1.39E-04 1.05E-06 ---1.34E-05 0.12 5.86E-05 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Toluene 4.08E-04 ---5.23E-03 45.78 2.29E-02 1.72E-04 ---2.20E-03 19.29 9.65E-03 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Vinyl Chloride 1.49E-05 ---1.91E-04 1.67 8.36E-04 6.28E-06 ---8.04E-05 0.70 3.52E-04 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Xylenes 1.84E-04 ---2.36E-03 20.64 1.03E-02 7.75E-05 ---9.93E-04 8.70 4.35E-03 AP-42, Chapter 3.2, Table 3.2-2 - uncontrolled, see note 5 - controlled
Other HAPs2 2.62E-04 ---3.35E-03 29.36 1.47E-02 2.62E-04 ---3.35E-03 29.36 1.47E-02 AP-42, Chapter 3.2, Table 3.2-2
Total HAPS 1.34 11,716 5.86 0.58 5,064 2.53
(kg/MMBtu)(g/bhp-hr)(lb/hr)(lb/yr) (ton/yr) (kg/MMBtu)(g/bhp-hr)(lb/hr)(lb/yr) (ton/yr)
CO21 ---438.0 1,835 ---8,036 ---438.0 1,835 ---8,036 Manufacturer's Specs
CH41 ---5.01 20.99 ---91.92 ---5.01 20.99 ---91.92 Manufacturer's Specs. Emissions are THC - NMHC.
N2O 0.00010 ---0.0028 ---0.012 0.00010 ---0.0028 ---0.012 40 CFR Part 98, Subpart C, Table C-2
CO2e2 ------2,360 ---10,338 ------2,360 ---10,338 40 CFR Part 98, Subpart A, Table A-1, effective January 2014
1. Manufacturer specifications.
2. Calculated values.
3. Based on representative gas analyses.
4. Annual Emissions are based on engines operating with 100% fuel of total fuel usage.
5. Those HAPs that are also VOCs are assumed to be controlled by the same efficiency by the oxidation catalyst except for aldehydes which are assumed to be controlled by the same efficiency as formaldehyde by the oxidation catalyst.
Compressor Engine Emissions
Caterpillar G3606 LE
Compression
Uncontrolled Controlled
Source of Emissions Factors
Pollutant Emission Factor Estimated Emissions2 Emission Factor Estimated Emissions2
Source of Emissions Factors
Pollutant Emission Factor Estimated Emissions2 Emission Factor Estimated Emissions2
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
Flared Gas Emissions
Vapor Flow from Compressor Blowdowns1:2.42 Mscf/day
Vapor Flow from Pigging Events1:2.81 Mscf/day
Total Flare Vapor Flow:5.23 Mscf/day
Vapor Heating Value2:1,284 Btu/scf
Number of Flares Onsite:1 flare
Vent Gas Burner Rating:0.28 MMBtu/hr
Hours of Operation:8,760 hr/yr
Pollutant Emission Factor3
(lb/MMBtu)
Emissions
(lb/hr)
Emissions
(tons/yr)
NOx 0.068 0.019 0.083
CO 0.31 0.087 0.38
PM/PM10/PM2.5
SO2
Pilot Emissions
Pilot Heating Value: 1,284 Btu/scf
Hours of Operation: 8,760 hr/yr
Total Pilot Natural Gas Usage4: 2.50E-05 MMscf/hr
Pollutant Emission Factor5
(lb/MMscf)
Emissions
(lb/hr)
Emissions
(tons/yr)
NOx 100 3.15E-03 1.38E-02
CO 84 2.64E-03 1.16E-02
VOC 5.5 1.73E-04 7.58E-04
PM/PM10/PM2.5 7.6 2.39E-04 1.05E-03
SO2 0.6 1.89E-05 8.27E-05
Total HAPs6 1.88 5.92E-05 2.59E-04
Total Flare Emissions
Pollutant Emissions
(lb/hr)
Emissions
(tons/yr)
NOx 0.022 0.097
CO 0.089 0.39
VOC 1.73E-04 7.58E-04
PM/PM10/PM2.5 2.39E-04 1.05E-03
SO2 1.89E-05 8.27E-05
Total HAPs 5.92E-05 2.59E-04
Greenhouse Gas Emissions
Emission Factor Emissions Emissions Emission Factor
(kg/MMBtu)(lb/hr)(tons/yr)Source
CO2 53.06 36.56 160.1 40 CFR Part 98, Subpart C, Table C-1
CH4 0.0010 0.00069 0.0030 40 CFR Part 98, Subpart C, Table C-2
N2O 0.00010 0.000069 0.00030 40 CFR Part 98, Subpart C, Table C-2
CO2e -36.60 160.3 40 CFR Part 98, Subpart A, Table A-1
1. Vapor flows are from engineering estimates.
2. Heating value is from the representative gas analyses.
3. Emission Factors from Table 13.5-1 of AP-42 Section 13.5 (February 2018)
4. Pilot gas flow rate of 25 scf/hr per flare. There is 1 flare in operation.
5. Emission Factors from AP-42 Tables 1.4-1, 1.4-2, 1.4-3, and 1.4-4 (7/98).
6. Sum of Emissions Factors published for pollutants classified as "HAPS" under AP-42 Table 1.4-3.
Flare Emissions
N/A - Smokeless Design
N/A - Sweet Gas
Pollutant
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
Number Amount Molecular Uncontrolled Controlled
Of Vented per Weight of VOC VOC
Events Event Vented Gas Emissions Emissions6
(events/yr)(scf/event)(lb/lb-mol)(tons/yr)(tons/yr)
Compressor Blowdowns2 208 4,250 21.66 25.23 0.26 6.65 0.33
Compressor Rod Packing3 21.66 20.00 0.26 5.27 5.27
Pigging Venting (8 inch vessel)4 730 1,062 21.66 22.13 0.26 5.83 0.29
Pigging Venting (16 inch vessel)4 52 4,785 21.66 7.10 0.26 1.87 0.094
19.63 5.99
Benzene Benzene Toluene Toluene Ethylbenzene Ethylbenzene Xylene Xylene n-Hexane n-Hexane
Weight Emissions Weight Emissions Weight Emissions Weight Emissions Weight Emissions
Fraction5 (tons/yr)Fraction5 (tons/yr)Fraction5 (tons/yr)Fraction5 (tons/yr)Fraction5 (tons/yr)
Compressor Blowdowns 1.32E-03 3.34E-02 9.00E-04 2.27E-02 1.90E-04 4.79E-03 2.60E-04 6.56E-03 9.30E-03 2.35E-01
Compressor Rod Packing 1.32E-03 2.65E-02 9.00E-04 1.80E-02 1.90E-04 3.80E-03 2.60E-04 5.20E-03 9.30E-03 1.86E-01
Pigging Venting (8 inch vessel)1.32E-03 2.93E-02 9.00E-04 1.99E-02 1.90E-04 4.20E-03 2.60E-04 5.75E-03 9.30E-03 2.06E-01
Pigging Venting (16 inch vessel)1.32E-03 9.40E-03 9.00E-04 6.39E-03 1.90E-04 1.35E-03 2.60E-04 1.85E-03 9.30E-03 6.60E-02
0.099 0.067 0.014 0.019 0.69
Benzene Benzene Toluene Toluene Ethylbenzene Ethylbenzene Xylene Xylene n-Hexane n-Hexane
Weight Emissions Weight Emissions Weight Emissions Weight Emissions Weight Emissions
Fraction5 (tons/yr)Fraction5 (tons/yr)Fraction5 (tons/yr)Fraction5 (tons/yr)Fraction5 (tons/yr)
Compressor Blowdowns 1.32E-03 1.67E-03 9.00E-04 1.14E-03 1.90E-04 2.40E-04 2.60E-04 3.28E-04 9.30E-03 1.17E-02
Compressor Rod Packing 1.32E-03 2.65E-02 9.00E-04 1.80E-02 1.90E-04 3.80E-03 2.60E-04 5.20E-03 9.30E-03 1.86E-01
Pigging Venting (8 inch vessel)1.32E-03 1.46E-03 9.00E-04 9.96E-04 1.90E-04 2.10E-04 2.60E-04 2.88E-04 9.30E-03 1.03E-02
Pigging Venting (16 inch vessel)1.32E-03 4.70E-04 9.00E-04 3.20E-04 1.90E-04 6.75E-05 2.60E-04 9.23E-05 9.30E-03 3.30E-03
0.030 0.020 0.0043 0.0059 0.21
Number Amount Molecular Uncontrolled Controlled Uncontrolled Controlled Uncontrolled Controlled
Of Vented per Weight of CH4 CH4 CO2 CO2 CO2e CO2e
Events Event Vented Gas Emissions Emissions6 Emissions Emissions6 Emissions Emissions6
(events/yr)(scf/event)(lb/lb-mol)(tons/yr)(tons/yr)(tons/yr)(tons/yr)(tons/yr)(tons/yr)
Compressor Blowdowns 208 4,250 21.66 0.59 0.018 15.01 0.75 0.46 0.46 375.7 18.79
Compressor Rod Packing 21.66 0.59 0.018 11.90 11.90 0.36 0.36 297.8 297.8
Pigging Venting (8 inch vessel)730 1,062 21.66 0.59 0.018 13.16 0.66 0.40 0.40 329.5 16.47
Pigging Venting (16 inch vessel)52 4,785 21.66 0.59 0.018 4.22 0.21 0.13 0.13 105.8 5.29
44.30 13.52 1.35 1.35 1,109 338.4
1. Estimated number of compressor blowdown and pigging venting per event from engineering.
2. Total number of compressor blowdowns based on 52 blowdown events per year for each compressor.
3. Compressor rod packing based on a continuous vent rate of 20 scf/hr per engine over the course of an entire year. Each of the reciprocating compressors will be subject to a 3 year packing vent replacement interval per 40 CFR 60, Subpart OOOOa.
4. Pigging venting based on a daily/weekly vent rate over the course of an entire year.
5. Weight fractions from a representative gas analyses.
6. Compressor blowdowns and pigging events are controlled by a flare with a 95% control efficiency. Compressor rod packing is not controlled.
Venting Episode Emissions
Type of Event
Type of Event1
VOC Venting Emissions
Uncontrolled HAPs Venting Emissions
Controlled HAPs Venting Emissions6
GHG Venting Emissions
700,800
Type of Event
Total
Emissions
(tons/yr)
VOC
Weight Fraction5
Total Emissions (tons/yr)
Total Emissions (tons/yr)
Total Emissions (tons/yr)
Total Emissions (tons/yr)
Type of Event
CH4 Weight
Fraction5
CO2 Weight
Fraction5
700,800
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
Number Hours of THC Emission VOC of THC THC VOC
Unit Type Service of Operation Factor Weight Emissions Emissions
Units1 (hours/yr)(kg/hr-unit)2 Fraction3 (tons/yr)(tons/yr)
Flanges Gas 373 8,760 5.70E-06 0.27 0.021 0.0056
Valves Gas 494 8,760 2.50E-05 0.27 0.12 0.032
Connectors Gas 1,782 8,760 1.00E-05 0.27 0.17 0.047
Open Ended Lines Gas 95 8,760 1.50E-05 0.27 0.014 0.0037
Other Gas 4 8,760 1.20E-04 0.27 0.0046 0.0013
Flanges Liquid 164 8,760 2.40E-06 0.95 0.0038 0.0036
Valves Liquid 228 8,760 1.90E-05 0.95 0.042 0.040
Connectors Liquid 367 8,760 9.70E-06 0.95 0.034 0.033
Open Ended Lines Liquid 41 8,760 1.40E-05 0.95 0.0055 0.0053
Other Liquid 0 8,760 1.10E-04 0.95 0.00 0.00
0.42 0.17
Benzene Toluene Ethylbenzene Xylene n-Hexane
to VOC to VOC to VOC to VOC to VOC
Weight Weight Weight Weight Weight
Fraction3 Fraction3 Fraction3 Fraction3 Fraction3
Flanges Gas 5.02E-03 2.79E-05 3.41E-03 1.90E-05 7.21E-04 4.00E-06 9.86E-04 5.48E-06 3.53E-02 1.96E-04
Valves Gas 5.02E-03 1.62E-04 3.41E-03 1.10E-04 7.21E-04 2.32E-05 9.86E-04 3.18E-05 3.53E-02 1.14E-03
Connectors Gas 5.02E-03 2.34E-04 3.41E-03 1.59E-04 7.21E-04 3.35E-05 9.86E-04 4.59E-05 3.53E-02 1.64E-03
Open Ended Lines Gas 5.02E-03 1.87E-05 3.41E-03 1.27E-05 7.21E-04 2.68E-06 9.86E-04 3.67E-06 3.53E-02 1.31E-04
Other Gas 5.02E-03 6.29E-06 3.41E-03 4.28E-06 7.21E-04 9.03E-07 9.86E-04 1.24E-06 3.53E-02 4.42E-05
Flanges Liquid 4.81E-03 1.74E-05 4.12E-04 1.49E-06 3.76E-05 1.36E-07 1.91E-05 6.90E-08 6.93E-02 2.51E-04
Valves Liquid 4.81E-03 1.91E-04 4.12E-04 1.64E-05 3.76E-05 1.50E-06 1.91E-05 7.60E-07 6.93E-02 2.76E-03
Connectors Liquid 4.81E-03 1.57E-04 4.12E-04 1.35E-05 3.76E-05 1.23E-06 1.91E-05 6.24E-07 6.93E-02 2.27E-03
Open Ended Lines Liquid 4.81E-03 2.54E-05 4.12E-04 2.18E-06 3.76E-05 1.98E-07 1.91E-05 1.01E-07 6.93E-02 3.65E-04
Other Liquid 4.81E-03 0.00E+00 4.12E-04 0.00E+00 3.76E-05 0.00E+00 1.91E-05 0.00E+00 6.93E-02 0.00E+00
0.00084 0.00034 0.000067 0.000090 0.0088
CH4 to VOC CH4 CO2 to VOC CO2 CO2e
Unit Type Service Weight Emissions Weight Emissions Emissions
Fraction3 (tons/yr)Fraction3 (tons/yr)(tons/yr)4
Flanges Gas 2.26E+00 1.25E-02 6.85E-02 3.81E-04 3.14E-01
Valves Gas 2.26E+00 7.28E-02 6.85E-02 2.21E-03 1.82E+00
Connectors Gas 2.26E+00 1.05E-01 6.85E-02 3.19E-03 2.63E+00
Open Ended Lines Gas 2.26E+00 8.40E-03 6.85E-02 2.55E-04 2.10E-01
Other Gas 2.26E+00 2.83E-03 6.85E-02 8.59E-05 7.08E-02
Flanges Liquid 7.75E-03 2.80E-05 1.72E-03 6.24E-06 7.07E-04
Valves Liquid 7.75E-03 3.09E-04 1.72E-03 6.86E-05 7.78E-03
Connectors Liquid 7.75E-03 2.54E-04 1.72E-03 5.64E-05 6.39E-03
Open Ended Lines Liquid 7.75E-03 4.09E-05 1.72E-03 9.09E-06 1.03E-03
Other Liquid 7.75E-03 0.00E+00 1.72E-03 0.00E+00 0.00E+00
0.20 0.0063 5.06
1. Component counts estimated from a similar compressor station.
3. Gas weight fraction from a representative gas analysis and liquid weight fraction based on an average tank off gas composition from nearby compressor station.
4. CO2e emissions calculated using the Global Warming Potential of methane and carbon dioxide as published in Table A-1 of 40 CFR Part 98.
2. Emission factors from EPA-453/R-95-017, Table 2.8.
Component Fugitive Emissions
VOC Fugitive Emissions
HAPs Fugitive Emissions
Unit Type Service
GHG Fugitive Emissions
Total Emissions (tons/yr)
Total Emissions (tons/yr)
Total Emissions (tons/yr)
Benzene
Emissions
(tons/yr)
Toluene
Emissions
(tons/yr)
Ethylbenzene
Emissions
(tons/yr)
Xylene Emissions
(tons/yr)
n-Hexane
Emissions
(tons/yr)
Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah
MOL %MW
Component
Weight
(lb/lb-mol)
Methane 79.86 16.14 12.89 59.49
Ethane 8.44 29.86 2.52 11.64
Propane 5.25 43.75 2.30 10.60
i-Butane 0.79 57.68 0.46 2.11
n-Butane 1.87 57.44 1.08 4.97
i-Pentane 0.55 71.45 0.39 1.80
n-Pentane 0.72 71.18 0.51 2.36
Hexanes 0.46 84.57 0.39 1.79
Heptanes 0.23 98.67 0.23 1.05
Octanes 0.069 110.9 0.077 0.36
Nonanes 0.019 126.6 0.024 0.11
Decanes+0.0050 141.5 0.0071 0.033
Benzene 0.038 76.11 0.029 0.13
Toluene 0.022 89.99 0.019 0.090
Ethylbenzene 0.0040 102.9 0.0041 0.019
Xylenes 0.0053 105.6 0.0056 0.026
n-Hexane 0.24 85.13 0.20 0.93
Nitrogen 0.53 28.35 0.15 0.69
Carbon Dioxide 0.90 43.60 0.39 1.81
Hydrogen Sulfide 0.0040 37.91 0.0015 0.0070
Totals 100.0 21.66 100.0
Heating Value (Btu/scf)1,284
Molecular weight 21.66
VOC weight fraction 0.26
CH4 weight fraction 0.59
HAP weight fraction 0.012
THC weight fraction 0.97
VOC of THC wt fraction 0.27
HAP of THC wt fraction 0.012
CH4 of THC wt fraction 0.61
Gas Analysis
Component Wt. Fraction
1. Gas analysis is the average of representative samples located within the same field.Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Modification
Uinta Wax Operating, LLC Zager Booster Station
Duchesne County, Utah

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah

Unit Description NOx CO VOC
g/bhp-hr lb/hr g/bhp-hr lb/hr g/bhp-hr lb/hr
C-1 – C-4 Caterpillar
G3606LE 0.50 2.09 0.50 2.09 0.60 2.51

BACT Analysis
The Zager Booster Station will consist of modification to and new installation of compressor engines,
flare, compressor blowdowns, compressor rod packing, and component fugitives. The other existing sources
are not being modified at the Zager Booster Station, and the BACT submitted for permit DAQE-
AN161690001-23 applies to the existing sources.
Utah Administrative Code (UAC) R307-401-2 defines BACT as:
“An emissions limitation (including a visible emission standard) based on the maximum degree of
reduction for each air pollutant which would be emitted from any proposed stationary source or
modification which the director, on a case-by-case basis, taking into account energy, environmental,
and economic impacts and other costs, determines is achievable for such source or modification
through application of production processes or available methods, systems, and techniques, including
fuel cleaning or treatment or innovative fuel combustion techniques for control of such pollutant. In
no event shall application of best available control technology result in emissions of any pollutant which
would exceed the emissions allowed by any applicable standard under 40 CFR Parts 60 and 61. If
the director determines that technological or economic limitations on the application of measurement
methodology to a particular emissions unit would make the imposition of an emissions standard
infeasible, a design, equipment, work practice, operational standard or combination thereof, may be
prescribed instead to satisfy the requirement for the application of best available control technology.
Such standard shall, to the degree possible, set forth the emissions reduction achievable by
implementation of such design, equipment, work practice or operation, and shall provide for
compliance by means which achieve equivalent results.”
UAC R307-401-8(a)(a) indicates that one condition for issuance of the AO is that the degree of pollution
control emissions, including fugitive emissions, is at least BACT.
Pollutants from the Zager Booster Station include PM10, PM2.5, NOX, SO2, CO, VOC, HAPs, and GHG. The
Facility is located in an attainment area for all pollutants monitored with the NAAQS except for ozone.
Engines
Each compressor engine will be equipped with an oxidation catalyst and an air fuel ratio controller (AFRC) to
control the emissions. The catalyst and AFRC will be provided by the company selling the engines. Proposed
emission limits for each of the engines have been included below. Uinta Wax considers these emissions
limitations to be BACT for the units.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Compressor Blowdowns
The compressor blowdowns will be controlled by one (1) flare with a manufacturer reported control efficiency
of 98%. Conservatively, the emission calculations use 95% destruction efficiency. Uinta Wax considers this
control strategy to be BACT.
Compressor Rod Packing
Rod vent packing leak rates are highly variable over time making control equipment selection and sizing difficult.
Control devices such as flares or VRUs can create pressure build-up or vacuum conditions in the stream, which
can be detrimental to the operation of the reciprocating compressor.
The background documentation for 40 CFR 60 Subpart OOOOa (EPA-453/R-11-002) only explored control
of rod packing vents through maintenance techniques, so it is presumed that EPA also concluded that active
control of this type of emission source was infeasible. Current industry practice for controlling these emissions
centers on maintenance practices to reduce emissions from these sources.
It is proposed that BACT for control of emissions for rod packing vents are the maintenance practices required
as part of compliance with the standards for reciprocating compressors required by 40 CFR 60, Subpart
OOOOa. Each of the reciprocating compressors at this facility will be maintained with the maintenance
practices mandated by 40 CFR 60, Subpart OOOOa.
BACT Analysis Conclusions
Control
Equipment Control Equipment Description
Compressor
Engines
Each engine will come equipped with an oxidation catalyst and air-fuel ratio
controller
Compressor
Blowdowns
Compressor blowdowns controlled by the flare with a conservative control
efficiency of 95%
Rod Packing Vents Maintenance practices as required by 40 CFR 60, Subpart OOOOa

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Regulatory Discussion
The UAC R307 series of local and federal regulations have been examined to evaluate the applicability of this
NOI. The rules outlined below have been evaluated for applicability to the Facility that could reasonably be
expected to be applied to this type of proposed Facility. The rules and regulations generally applicable to this
source are presented with the respective name and, if necessary, a summary of the required compliance
activities. Many rules that would not apply to this source based on industry or proposed equipment and
emission sources are not presented nor discussed. The rules discussed are clearly labeled as either applicable
or not applicable.
Utah State Regulations
Utah Administrative Code: R307 – Air Quality
I. UAC R307-107 – General Requirements: Breakdown
If the Facility experiences a breakdown, the Facility will report the incident via telephone,
electronic mail, or fax within 24 hours of the incident. The Facility will also report the breakdown
to UDAQ in writing within fourteen days of the initial breakdown, including a corrective program
directed at preventing future incidents. The written report will include the cause and nature of
the event, estimated quantity of pollutants emitted, time of emissions, and steps to control the
emissions and prevent recurrence.
In the event the Facility suffers an unavoidable breakdown, the Facility will take steps where
emission limitations and visible emission limitations are exceeded for only as short a period of
time as reasonable. The owner or operator shall take all reasonable measures to limit the total
emissions from the source. This rule is applicable.
II. UAC R307-150 – Emission Inventories
The Facility will submit an emissions inventory report on or before April 15 of each year following
the calendar year for which an inventory is required. The Facility will submit the emissions
inventory report every third year for all emissions units, including fugitive emissions. The Facility
will submit an inventory for each year in which the individual amount of PM10, SO2, NOX, CO, or
VOCs increases or decreases by 40 tons or more per year from the most recently submitted
inventory. The emission inventory will include individual pollutant totals of all chargeable pollutants
not exempted in R307-150-8.
The Facility will maintain a copy of the emission inventory submitted to the UDAQ and records,
including how the submitted information was determined, including any calculations, data,
measurements, and estimates used. This rule is applicable.
III. UAC R307-170 – Continuous Emissions Monitoring Program
R307-202 establishes open burns that require permits and those that do not.
The rule is not applicable to burning fuel in processing equipment. No other open burning is
planned for the Facility. In the event an open burn is required, the Facility will secure an open burn
permit prior to conducting the open burn. This rule is not applicable.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
IV. UAC R307-201 – Emission Standard: General Emission Standard
R307-201 establishes emission standards for all areas of the state except for sources listed in
section IX, Part H of the SIP or located in a PM10 nonattainment.
Visible emissions from all emission points at the Facility, excluding diesel engines, shall be of a
shade or density no darker than 20 percent opacity. This rule is applicable.
V. UAC R307-202 – Emission Standards: General Burning
R307-202 establishes open burns that require permits and those that do not require permits.
This rule is not applicable to burning fuels in processing equipment. No other open burning is
planned for the Facility. In the event an open burn is required, the Facility will secure an open burn
permit prior to conducting the open burn. This rule is not applicable.
VI. UAC R307-203-1(1) – Emission Standards: Sulfur Content of Fuels
Any coal, oil, or mixture thereof, burned in any fuel burning or process installation not covered
by NSPS for sulfur emissions shall contain no more than 0.85 pounds of sulfur per million gross
British thermal unit (BTU) heat input for any oil. This rule is not applicable.
VII. UAC R307-305-1 through -5 – Nonattainment and Maintenance Areas for PM10: Emission Standard
This rule establishes opacity limitations, emission standards, and work practices for sources
located in PM10 nonattainment and maintenance areas to meet the reasonably available control
measures requirements in section 189(a)(1)(C) of the Act. The requirements include visible
emissions, PM limitation, and compliance testing.
The Facility is located in a PM10 attainment area; therefore, this rule is not applicable.
VIII. UAC R307-309 – Nonattainment and Maintenance Areas for PM10 and PM2.5: Fugitive Emissions and
Fugitive Dust
This rule establishes minimum work practices and emission standards for sources of fugitive
emissions and fugitive dust listed in Section IX, Part H of the SIP or located in PM10 nonattainment
and maintenance areas to meet the reasonably available control measures for PM10 required in
section 189(a)(1)(C) of the Act.
The Facility is located in a PM10 attainment area and is not a county listed in Section IX, Part H of
the SIP; therefore, the rule is not applicable.
IX. UAC R307-325 – Ozone Nonattainment and Maintenance Areas: General Requirements
The rule established general requirements for the control of VOCs in any ozone nonattainment
or maintenance area. The Facility is located in an ozone attainment area; therefore, this rule is
applicable.
X. UAC R307-401 – Permit. New and Modified Sources (exemptions)
Establishes the application and permitting requirements for new installations and modifications to
existing installations throughout the State of Utah. This rule is applicable.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
XI. UAC R307-401-5 – Notice of Intent
Any person subject to R307-401 shall submit a NOI to the executive secretary and receive an AO
prior to the initiation of construction, modification, or relocation of non-permitted units. This rule
is applicable. This NOI fulfills the requirements of R307-401-5.
XII. UAC R307-401-9 –Small Source Exemption
The Facility has no units or detached processes that could be considered a small source. This rule
is not applicable.
XIII. UAC R307-401-10 through -17 – Permit. New and Modified Sources
The Facility is not subject to any exemptions to R307-401 as described above. This rule is not
applicable.
XIV. UAC R307-403 – Permit: New and Modified Sources in Nonattainment Areas and Maintenance Areas
Specific permit requirements for new and modified sources in nonattainment and maintenance
areas. The Facility is located in an ozone nonattainment area; therefore, this rule is applicable.
XV. UAC R307-403-5 – Offset: Particulate Matter Nonattainment Areas
The Facility is located in a PM10 attainment area; therefore, this rule is not applicable.
XVI. UAC R307-405 – Permits: Major Sources in Attainment or Unclassified Area (PSD)
The Facility is not a major source; therefore, this rule is not applicable.
XVII. UAC R307-406 – Visibility
The rule is only applicable to a major source or major modification. This rule is not applicable.
XVIII. UAC R307-410 – Permits: Emissions Impact Analysis
This Facility is below the criteria pollutant modeling thresholds; therefore, this rule is not
applicable.
XIX. UAC R307-415 – Permits: Operating Permit Requirements
The Facility is not a major source; therefore, this rule is not applicable.
XX. UAC R307-420 – Permits: Ozone Offset Requirements in Davis and Salt Lake Counties
The Facility is located in Duchesne County and is not a major source of NOX or VOCs; therefore,
this rule is not applicable.
XXI. UAC R307-421 – Permits: PM10 Offset Requirements in Salt Lake County and Utah County
The Facility is to be located in Duchesne County; therefore, this rule is not applicable.

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Federal Regulations
40 CFR Part 60 – Standards of Performance for New Stationary Sources
I. Subpart A – General Provision
Applicability: Subpart A applies to all equipment or facilities subject to an NSPS Subpart. Thus,
Subpart A applies to the Zager Booster Station as the facility is considered an “affected facility”
subject to the general provisions of NSPS as described in Subpart A.
II. Subpart Kb - Standards of Performance for Volatile Organic Liquid Storage Vessels (Including Petroleum
Liquid Storage Vessels) for Which Construction, Reconstruction, or Modification Commenced After July 23,
1984.
Applicability: Subpart Kb applies to volatile organic liquid storage tanks with a capacity greater than
or equal to 75 m3 (§60.110b(a)). However, Subpart Kb does not apply to storage vessels with a
design capacity less than or equal to 1,589.874 m3 used for petroleum or condensate storage prior
to custody transfer. The atmospheric storage tanks at the Zager Booster Station are less than
1,589.874 m3 and are used for storage prior to custody transfer. The pressurized tanks meet the
exemption of (§60.110b(d)(2)) because they are pressurized in excess of 204.9 kPa and do not
have emissions. Therefore, Subpart Kb does not apply to the Zager Booster Station.
III. Subpart KKK - Standards of Performance for Equipment Leaks of VOC from Onshore Natural Gas
Processing Plants for Which Construction, Reconstruction, or Modification Commenced After January 20,
1984, and on or Before August 23, 2011.
Applicability: Subpart KKK applies to facilities built or modified before August 23, 2011. Subpart
KKK does not apply as the Zager Booster Station was initially constructed after August 23, 2011.
IV. Subpart LLL - Standards of Performance for SO2 Emissions from Onshore Natural Gas Processing for
Which Construction, Reconstruction, or Modification Commenced After January 20, 1984, and on or Before
August 23, 2011.
Applicability: Subpart LLL applies to facilities built or modified before August 23, 2011. Subpart
LLL does not apply as the Zager Booster Station was initially constructed after August 23, 2011.
V. Subpart JJJJ - Standards of Performance for Stationary Spark Ignition Internal Combustion Engines
Applicability: Subpart JJJJ applies to engines that were ordered after June 12, 2006, and
manufactured on or after July 1, 2007, for compressor engines with maximum power greater than
or equal to 500 hp (§60.4230(a)(4)(i)) and engine that was manufactured on or after January 1,
2011, for generator engine with maximum power greater than or equal to 100 hp and less than
500 hp (§60.4231(d)). Thus, Subpart JJJJ applies to the Zager Booster Station as the compressor
engines were ordered after June 12, 2006, and manufactured after July 1, 2007, and the generator
engine was ordered after June 12, 2006, and manufactured after January 1, 2011.
VI. Subpart OOOO - Standards of Performance for Crude Oil and Natural Gas Production, Transmission, and
Distribution
Applicability: Subpart OOOO applies to reciprocating compressor facilities that were constructed,
modified, or reconstructed after August 23, 2011, and on or before September 18, 2015

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
(§60.5365). Therefore, Subpart OOOO does not apply as the Zager Booster Station was modified
after September 18, 2015.
VII. Subpart OOOOa – Standards of Performance for Crude Oil and Natural Gas Facilities for which
Construction, Modification, or Reconstruction Commenced after September 18, 2015
Applicability: Subpart OOOOa applies to reciprocating compressor facilities that were
constructed, modified, or reconstructed after September 18, 2015 (§60.5365a(c)). Also, Subpart
OOOOa applies to storage vessel affected facilities with individual tank emissions greater than 6
tons per year (§60.5365a(e)). Lastly, the collection of fugitive emissions components at a
compressor station is an affected facility under this Subpart (§60.5365a(j)). Since the Zager Booster
Station was initially constructed after September 18, 2015 and is a compressor station with
reciprocating compressors, Subpart OOOOa does apply. The estimated maximum potential
emissions from the storage tank battery is estimated less than 6 tons VOC per year per tank and
therefore is not a storage tank affected facility per Subpart OOOOa. Subpart OOOOb was signed
on November 30, 2023, and will be reviewed for applicability once published in the Federal
Register.
40 CFR Part 61 – National Emission Standards for Hazardous Air Pollutants
I. Subpart V – National Emission Standard for Equipment Leaks (Fugitive Emission Sources)
Applicability: Subpart V applies to components such as compressors, valves, and pumps that are
intended to operate in volatile hazardous air pollutant (VHAP) service (§61.240(a)). VHAP service
means that a component contains or contacts a fluid that is at least 10 percent by weight a VHAP.
Subpart V does not apply to the Zager Booster Station because none of the components will have
fluid (natural gas, water, or condensate) over 10 percent by weight of any VHAP.
40 CFR Part 63 – National Emission Standards for Hazardous Air Pollutants for Source Categories
I. Subpart HH – National Emission Standards for Hazardous Air Pollutants from Oil and Natural Gas
Production Facilities
Applicability: Subpart HH applies to oil and natural gas production facilities that are a major or
area source of HAP emissions and that process, upgrade, or store hydrocarbon liquids or natural
gas prior to the transmission and storage source category (§63.760(a)). Subpart HH does apply to
the Zager Booster Station. Per the definitions in §63.761, the Zager Booster Station would be
considered a “production field facility” as it is before custody transfer (before a gas processing
plant). The Zager Booster Station emissions are below major source thresholds for HAPs, and
there are no subject sources at the Zager Booster Station. Therefore, Subpart HH does not apply
for the Zager Booster Station.
II. Subpart HHH – National Emission Standards for Hazardous Air Pollutants from Natural Gas Transmission
and Storage Facilities
Applicability: Subpart HHH applies to natural gas transmission and storage facilities that are a major
source of HAP emissions (§63.1270(a)). Subpart HHH does not apply to the Zager Booster Station
prior to the gas transmission and storage phase.
III. Subpart EEEE – National Emission Standards for Hazardous Air Pollutants: Organic Liquids Distribution
(Non-Gasoline)

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Applicability: Subpart EEEE applies to organic liquids distribution operations located at a major
source of HAP emissions (§63.2334(a)). Subpart EEEE does not apply to the Zager Booster Station
as it is defined as an oil and natural gas production facility and exempt from this Subpart
(§63.2334(c)(1)).
IV. Subpart YYYY – National Emission Standards for Hazardous Air Pollutants for Stationary Combustion
Turbines
Applicability: Subpart YYYY applies to stationary combustion turbines located at major sources of
HAP emissions (§63.6085(a)). A major source determination is made by the potential HAP
emissions of all stationary combustion units, storage tanks, and dehydration units. Because the
Zager Booster Station is not a major source of HAP emissions, as defined by the Rule, this Subpart
is not applicable.
V. Subpart ZZZZ - National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating
Internal Combustion Engines
Applicability: Subpart ZZZZ applies to stationary RICE at a major or area source of HAP emissions
(§63.6585). Subpart ZZZZ applies to the Zager Booster Station as the compressor engines and
generator engine are new RICE. A major source determination is made by the potential HAP
emissions of all stationary combustion units, storage tanks, and dehydration units. The HAP total
of all stationary combustion units, storage tanks, and dehydration units is less than 25 tons/yr, and
therefore the Zager Booster Station is an area source of HAPs. The engines will meet Subpart
ZZZZ by meeting 40 CFR Part 60, Subpart JJJJ, as the Zager Booster Station is an area source of
HAP emissions (§63.6590(c)(1)).

Notice of Intent (NOI) for Approval Order (DAQE-AN161690001-23) Minor Modification
Uinta Wax Operating, LLC
Zager Booster Station, Duchesne County, Utah
Supporting Documentation
ENGINE SPEED (rpm):1000
COMPRESSION RATIO:9.2
AFTERCOOLER TYPE:SCAC
AFTERCOOLER WATER INLET (°F):90
JACKET WATER OUTLET (°F):190
ASPIRATION:TA
COOLING SYSTEM:JW, OC+AC
CONTROL SYSTEM:CIS/ADEM3
EXHAUST MANIFOLD:DRY
COMBUSTION:LOW EMISSION
NOx EMISSION LEVEL (g/bhp-hr NOx):0.7
RATING NOTES LOAD 100%75%50%
ENGINE POWER (WITHOUT FAN)(1)bhp 1895 1421 948
ENGINE EFFICIENCY (ISO 3046/1)(2)%38.7 37.1 34.6
ENGINE EFFICIENCY (NOMINAL)(2)%37.7 36.3 33.8
ENGINE DATA
FUEL CONSUMPTION (ISO 3046/1)(3)Btu/bhp-hr 6581 6849 7352
FUEL CONSUMPTION (NOMINAL)(3)Btu/bhp-hr 6741 7016 7531
AIR FLOW (77°F, 14.7 psia)(WET)(4)(5)ft3/min 4857 3723 2530
AIR FLOW (WET)(4)(5)lb/hr 21536 16508 11216
FUEL FLOW (60°F, 14.7 psia)scfm 235 184 131
COMPRESSOR OUT PRESSURE in Hg(abs)76.1 59.3 42.5
COMPRESSOR OUT TEMPERATURE °F 300 243 163
AFTERCOOLER AIR OUT TEMPERATURE °F 100 97 93
INLET MAN. PRESSURE (6)in Hg(abs)73.4 56.9 40.6
INLET MAN. TEMPERATURE (MEASURED IN PLENUM)(7)°F 108 104 99
TIMING °BTDC N/A N/A N/A
EXHAUST TEMPERATURE - ENGINE OUTLET (8)°F 832 869 932
EXHAUST GAS FLOW (@engine outlet temp, 14.5 psia)(WET)(5)(9)ft3/min 12457 9829 7013
EXHAUST GAS MASS FLOW (WET)(5)(9)lb/hr 22181 17012 11576
EMISSIONS DATA - ENGINE OUT
NOx (as NO2)(10)(11)g/bhp-hr 0.70 0.70 0.70
CO (10)(12)g/bhp-hr 2.50 2.50 2.50
THC (mol. wt. of 15.84)(10)(12)g/bhp-hr 5.90 6.13 6.34
NMHC (mol. wt. of 15.84)(10)(12)g/bhp-hr 0.89 0.92 0.95
NMNEHC (VOCs) (mol. wt. of 15.84)(10)(12)(13)g/bhp-hr 0.59 0.61 0.63
HCHO (Formaldehyde)(10)(12)g/bhp-hr 0.26 0.27 0.29
CO2 (10)(12)g/bhp-hr 438 456 489
EXHAUST OXYGEN (10)(14)% DRY 12.3 11.9 10.9
LAMBDA (10)(14)2.11 2.07 1.96
ENERGY BALANCE DATA
LHV INPUT (15)Btu/min 212893 166183 118930
HEAT REJECTION TO JACKET WATER (JW)(16)(23)Btu/min 18645 16144 13093
HEAT REJECTION TO ATMOSPHERE (17)Btu/min 7452 6980 6541
HEAT REJECTION TO LUBE OIL (OC)(18)(24)Btu/min 9581 9141 8920
HEAT REJECTION TO EXHAUST (LHV TO 77°F)(19)(20)Btu/min 76566 61016 44080
HEAT REJECTION TO EXHAUST (LHV TO 350°F)(19)Btu/min 47184 39065 29995
HEAT REJECTION TO AFTERCOOLER (AC)(21)(24)Btu/min 17337 9677 3157
PUMP POWER (22)Btu/min 2957 2957 2957
CONDITIONS AND DEFINITIONS
Engine rating obtained and presented in accordance with ISO 3046/1. (Standard reference conditions of 77°F, 29.60 in Hg barometric pressure.) No overload permitted at rating
shown. Consult the altitude deration factor chart for applications that exceed the rated altitude or temperature.
Emission levels are at engine exhaust flange prior to any after treatment. Values are based on engine operating at steady state conditions, adjusted to the specified NOx level at
100% load. Tolerances specified are dependent upon fuel quality. Fuel methane number cannot vary more than ± 3.
For notes information consult page three.
STANDARD
GAS COMPRESSION
CONTINUOUS
NAT GAS
GAV
WITH AIR FUEL RATIO CONTROL
42.8-47.0
80
905
5000
RATING STRATEGY:
APPLICATION:
RATING LEVEL:
FUEL:
FUEL SYSTEM:
FUEL PRESSURE RANGE(psig):
FUEL METHANE NUMBER:
FUEL LHV (Btu/scf):
ALTITUDE CAPABILITY AT 77°F INLET AIR TEMP. (ft):
Page 1 of 4Data generated by GERP Web Version 2.7.0.14
Ref. Data Set DM5432-09-001, Printed 13Jul2023
GAS ENGINE TECHNICAL DATAG3606
MINIMUM SPEED CAPABILITY AT THE RATED SPEED'S
SITE TORQUE (RPM)
ALTITUDE (FEET ABOVE SEA LEVEL)
INLET
AIR
TEMP
°F
130 750 750 780 800 800 800 800 790 790 780 770 760 760
120 750 750 760 800 800 800 800 800 800 800 800 800 800
110 750 750 750 790 800 800 800 800 800 800 800 800 800
100 750 750 750 770 800 800 800 800 800 800 800 800 800
90 750 750 750 750 790 800 800 800 800 800 800 800 800
80 750 750 750 750 770 800 800 800 800 800 800 800 800
70 750 750 750 750 750 790 800 800 800 800 800 800 800
60 750 750 750 750 750 770 800 800 800 800 800 800 800
50 750 750 750 750 750 750 790 800 800 800 800 800 800
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000
AFTERCOOLER HEAT REJECTION FACTORS (ACHRF)
ALTITUDE (FEET ABOVE SEA LEVEL)
INLET
AIR
TEMP
°F
130 1.35 1.40 1.46 1.51 1.57 1.63 1.63 1.63 1.63 1.63 1.63 1.63 1.63
120 1.28 1.33 1.39 1.44 1.50 1.55 1.55 1.55 1.55 1.55 1.55 1.55 1.55
110 1.21 1.26 1.31 1.37 1.42 1.48 1.48 1.48 1.48 1.48 1.48 1.48 1.48
100 1.14 1.19 1.24 1.29 1.35 1.40 1.40 1.40 1.40 1.40 1.40 1.40 1.40
90 1.07 1.12 1.17 1.22 1.27 1.33 1.33 1.33 1.33 1.33 1.33 1.33 1.33
80 1 1.05 1.10 1.15 1.20 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25
70 1 1 1.02 1.07 1.13 1.18 1.18 1.18 1.18 1.18 1.18 1.18 1.18
60 1 1 1 1 1.05 1.10 1.10 1.10 1.10 1.10 1.10 1.10 1.10
50 1 1 1 1 1 1.03 1.03 1.03 1.03 1.03 1.03 1.03 1.03
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000
ALTITUDE (FEET ABOVE SEA LEVEL)
INLET
AIR
TEMP
°F
130 1 1 1 0.98 0.95 0.91 0.87 0.83 0.79 0.76 0.72 0.69 0.66
120 1 1 1 1 0.96 0.93 0.89 0.86 0.82 0.79 0.76 0.73 0.69
110 1 1 1 1 0.98 0.94 0.91 0.87 0.84 0.80 0.77 0.74 0.71
100 1 1 1 1 1 0.96 0.92 0.89 0.85 0.82 0.79 0.75 0.72
90 1 1 1 1 1 0.98 0.94 0.90 0.87 0.83 0.80 0.77 0.74
80 1 1 1 1 1 0.99 0.96 0.92 0.88 0.85 0.81 0.78 0.75
70 1 1 1 1 1 1 0.97 0.94 0.90 0.86 0.83 0.80 0.76
60 1 1 1 1 1 1 0.99 0.95 0.92 0.88 0.85 0.81 0.78
50 1 1 1 1 1 1 1 0.97 0.94 0.90 0.86 0.83 0.79
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000
ALTITUDE DERATION FACTORS AT RATED SPEED
CAT METHANE NUMBER 25 30 35 40 45 50 55 60 65 70 100
DERATION FACTOR 0 0.69 0.74 0.79 0.84 0.90 0.95 1 1 1 1
FUEL USAGE GUIDE
Page 2 of 4Data generated by GERP Web Version 2.7.0.14
Ref. Data Set DM5432-09-001, Printed 13Jul2023
GAS ENGINE TECHNICAL DATAG3606
FUEL USAGE GUIDE:
This table shows the derate factor required for a given fuel. Note that deration occurs as the methane number decreases. Methane number is a scale to measure detonation
characteristics of various fuels. The methane number of a fuel is determined by using the Caterpillar methane number calculation.
ALTITUDE DERATION FACTORS:
This table shows the deration required for various air inlet temperatures and altitudes. Use this information along with the fuel usage guide chart to help determine actual engine
power for your site. The derate factors shown do not account for the external cooling system capacity. The derate factors provided assume the external cooling system can
maintain the specified cooling water temperatures at site conditions.
ACTUAL ENGINE RATING:
To determine the actual rating of the engine at site conditions, one must consider separately, limitations due to fuel characteristics and air system limitations. The Fuel Usage
Guide deration establishes fuel limitations. The Altitude/ Temperature deration factors and RPC(reference the Caterpillar Methane Program) establish air system limitations.
RPC comes into play when the Altitude/Temperature deration is less than 1.0 (100%). Under this condition, add the two factors together. When the site conditions do not
require an Altitude/Temperature derate (factor is 1.0), it is assumed the turbocharger has sufficient capability to overcome the low fuel relative power, and RPC is ignored. To
determine the actual power available, take the lowest rating between 1) and 2).
1) Fuel Usage Guide Deration
2) 1 - ((1 - Altitude / Temperature Deration) +(1 - RPC))
AFTERCOOLER HEAT REJECTION FACTORS(ACHRF):
To maintain a constant air inlet manifold temperature, as the inlet air temperature goes up, so must the heat rejection. As altitude increases, the turbocharger must work harder
to overcome the lower atmospheric pressure. This increases the amount of heat that must be removed from the inlet air by the aftercooler. Use the aftercooler heat rejection
factor (ACHRF) to adjust for inlet air temp and altitude conditions. See note (23) for application of this factor in calculating the heat exchanger sizing criteria. Failure to properly
account for these factors could result in detonation and cause the engine to shutdown or fail.
MINIMUM SPEED CAPABILITY AT THE RATED SPEED'S SITE TORQUE (RPM):
This table shows the minimum allowable engine turndown speed where the engine will maintain the Rated Speed¶s Torque for the given ambient conditions.
NOTES:
1. Engine rating is with two engine driven water pumps. Tolerance is ± 3% of full load.
2. ISO 3046/1 engine efficiency tolerance is (+)0, (-)5% of full load % efficiency value. Nominal engine efficiency tolerance is ± 2.5% of full load % efficiency value.
3. ISO 3046/1 fuel consumption tolerance is (+)5, (-)0% of full load data. Nominal fuel consumption tolerance is ± 2.5% of full load data.
4. Air flow value is on a 'wet' basis. Flow is a nominal value with a tolerance of ± 5 %.
5. Inlet and Exhaust Restrictions must not exceed A&I limits based on full load flow rates from the standard technical data sheet.
6. Inlet manifold pressure is a nominal value with a tolerance of ± 5 %.
7. Inlet manifold temperature is a nominal value with a tolerance of ± 9°F.
8. Exhaust temperature is a nominal value with a tolerance of (+)63°F, (-)54°F.
9. Exhaust flow value is on a 'wet' basis. Flow is a nominal value with a tolerance of ± 6 %.
10. Emissions data is at engine exhaust flange prior to any after treatment.
11. NOx values are the maximum values expected under steady state conditions.
12. CO, CO2, THC, NMHC, NMNEHC, and HCHO values are "Not to Exceed" levels. THC, NMHC, and NMNEHC do not include aldehydes. An oxidation catalyst may be
required to meet Federal, State or local CO or HC requirements.
13. VOCs - Volatile organic compounds as defined in US EPA 40 CFR 60, subpart JJJJ
14. Exhaust Oxygen tolerance is ± 0.5; Lambda tolerance is ± 0.05. Lambda and Exhaust Oxygen level are the result of adjusting the engine to operate at the specified NOx
level.
15. LHV rate tolerance is ± 2.5%.
16. Heat rejection to jacket water value displayed includes heat to jacket water alone. Value is based on treated water. Tolerance is ± 10% of full load data.
17. Heat rejection to atmosphere based on treated water. Tolerance is ± 50% of full load data.
18. Lube oil heat rate based on treated water. Tolerance is ± 20% of full load data.
19. Exhaust heat rate based on treated water. Tolerance is ± 10% of full load data.
20. Heat rejection to exhaust (LHV to 77°F) value shown includes unburned fuel and is not intended to be used for sizing or recovery calculations.
21. Heat rejection to aftercooler based on treated water. Tolerance is ±5% of full load data.
22. Pump power includes engine driven jacket water and aftercooler water pumps. Engine brake power includes effects of pump power.
23. Total Jacket Water Circuit heat rejection is calculated as: JW x 1.1. Heat exchanger sizing criterion is maximum circuit heat rejection at site conditions, with applied
tolerances. A cooling system safety factor may be multiplied by the total circuit heat rejection to provide additional margin.
24. Total Aftercooler Circuit heat rejection is calculated as: (OC x 1.2) + (AC x ACHRF x 1.05). Heat exchanger sizing criterion is maximum circuit heat rejection at site
conditions, with applied tolerances. A cooling system safety factor may be multiplied by the total circuit heat rejection to provide additional margin.
Page 3 of 4Data generated by GERP Web Version 2.7.0.14
Ref. Data Set DM5432-09-001, Printed 13Jul2023
GAS ENGINE TECHNICAL DATAG3606
FREE FIELD MECHANICAL, EXHAUST, & INLET NOISE
Octave Band Center Frequency (OBCF)
SOUND POWER LEVEL (dB)
100% Load Data dB(A)16 Hz 32 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz
Mechanical Sound 118.4 --119.6 116.9 115.5 113.6 108.6 109 99.8
Exhaust Sound 136.6 119.2 130.3 127.2 122.2 119.9 123.1 128.8 133.3 131.4
Air Inlet Sound 127 104.4 113.8 115.8 115 112.9 112 117.4 122.6 123
SOUND PARAMETER DEFINITION:
Sound Power Level Data - DM8702-03
Sound power is defined as the total sound energy emanating from a source irrespective of direction or distance. Sound power level data is presented
under two index headings:
Sound power level -- Mechanical
Sound power level -- Exhaust
Mechanical: Sound power level data is calculated in accordance with ISO 3747. The data is recorded with the exhaust sound source isolated.
Exhaust: Sound power level data is calculated in accordance with ISO 6798 Annex A. Exhaust data is post-catalyst on gas engine ratings labeled as
"Integrated Catalyst".
Measurements made in accordance with ISO 3747 and ISO 6798 for mechanical and exhaust sound level only. Frequency bands outside the displayed ranges are not
measured, due to physical test, and environmental conditions that affect the accuracy of the measurement. No cooling system noise is included unless specifically indicated.
Sound level data is indicative of noise levels recorded on one engine sample in a survey grade 3 environment.
How an engine is packaged, installed and the site acoustical environment will affect the site specific sound levels. For site specific sound level guarantees, sound data collection
needs to be done on-site or under similar conditions.
Page 4 of 4Data generated by GERP Web Version 2.7.0.14
Ref. Data Set DM5432-09-001, Printed 13Jul2023
GAS ENGINE TECHNICAL DATAG3606
Global Leader in Emission Control Solutions
DCL America Inc. 27603 Commerce Oaks Drive, Oak Ridge North, TX 77385
Toll free:1-877-965-8989 Fax:[phone] Email:[e-mail] www.dcl-inc.com
Confidential
Emission Guarantee
Date:2/5/2024
Jeremy Horwitz
Archrock
RE: Unit 312107
Jeremy,
I am pleased to provide this guarantee based on the following information. If you have any
questions or concerns please feel free to contact myself or any of my associates at DCL
America.
Please note: This guarantee is subject to DCL’s standard terms and conditions of sale
attached. Copies of the limited warranty statement are available from DCL upon request
(DCL doc. No. X0000-0000-K1).
Best Regards,
Michael Kourkoubes
Regional Sales Manager
DCL America Inc.
Cell: 713-897-1596
[e-mail]
Global Leader in Emission Control Solutions
DCL America Inc. 27603 Commerce Oaks Drive, Oak Ridge North, TX 77385
Toll free:1-877-965-8989 Fax:[phone] Email:[e-mail] www.dcl-inc.com
Confidential
Catalyst Element (Table 1A)
Application Gas Compression
Engine Model CAT G3516B
Engine Mechanical Power 1242 hp
Fuel NG (High BTU)
Exhaust Flowrate 12575 lb/hr
Exhaust Temperature 1010 deg. F
Silencer Model Miratech RCS-3626-12L1
Catalyst Part Number A70V7-01-040A-0V73-01
Number of Elements 1
Catalyst Code 0A / 300 cpsi
Dimensions 24.75”D
Pre-Catalyst Emissions NOx 0.50
g/bhp-h CO 2.58
NMNEHC (VOC)1.14
Post-Catalyst NOx 0.50
g/bhp-h CO 0.50
NMNEHC (VOC)<0.60
Limited Warranty (doc. X0000-0000-K1) one year or 8000 hours
operation, whichever first