DAQ-2024-004987

DAQE-AN142220005-24

{{$d1 }}

Gretsel Marshall
Chevron Pipe Line Company
651 South Redwood Road
North Salt Lake, UT 84054
[e-mail]

Dear Ms. Marshall:

Re: Approval Order: Administrative Amendment to Approval Order to DAQE-AN142220004-23 to
Reduce Crude Oil Throughput, Resulting in a Reduction in Air Pollutants under Rule
R307-401-12
Project Number: N142220005

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on December
18, 2023. Chevron Pipe Line Company must comply with the requirements of this AO, all applicable
state requirements (R307), and Federal Standards.

The project engineer for this action is Christine Bodell, 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:CB: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

February 2, 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")}}
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APPROVAL ORDER
DAQE-AN142220005-24
Administrative Amendment to Approval Order to
DAQE-AN142220004-23 to Reduce Crude Oil Throughput,
Resulting in a Reduction in Air Pollutants under Rule R307-401-12

Prepared By
Christine Bodell, Engineer
[phone]
[e-mail]

Issued to
Chevron Pipe Line Company - Myton Station

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality
February 2, 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 ................................................................................................. 4
Project Description.................................................................................................................. 4
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 4
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 6
PERMIT HISTORY ..................................................................................................................... 7
ACRONYMS ................................................................................................................................. 8

DAQE-AN142220005-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Chevron Pipe Line Company Chevron Pipe Line Company - Myton Station

Mailing Address Physical Address
651 South Redwood Road 9900 South 4500 West
North Salt Lake, UT 84054 Myton, UT 84052

Source Contact UTM Coordinates
Name: Gretsel Marshall 578,493 m Easting
Phone: [phone],445,816 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12

SIC code 4612 (Crude Petroleum Pipelines)

SOURCE INFORMATION
General Description
Chevron Pipe Line Company (Chevron) owns and operates the Myton petroleum pipeline pumping
station that transports crude oil from the Rangely Oil Field to Salt Lake City for refining. During normal
operations, petroleum liquids are routinely trucked to the Myton Station, unloaded to a storage tank (Tank
132), and injected into the pipeline for continued transportation by pipeline to Salt Lake City.
Additionally, Chevron has two (2) permanent loading bays which can be used to load crude from the
Tank 131 into tanker trucks for off-site delivery. The truck loading is only used during emergencies in
which refineries would run out of crude and/or upstream production would need to be shut in. Petroleum
liquids are bottom loaded to tanker trucks.

Electrical pumps are used to boost the pressure in the pipeline. The facility operates continuously,
24 hours per day, 365 days per year.

NSR Classification
Administrative Amendment

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

DAQE-AN142220005-24
Page 4

Applicable Federal Standards
None
Project Description
Chevron has requested the following changes to Approval Order DAQE-AN142220004-23:

1. Update Condition II.B.1.b(A) to reduce the annual crude oil throughput to the tanks from 5,256,000
barrels to 3,796,000 barrels.
2. Update Condition II.B.1.b(B) to reduce the annual crude oil on-loaded onto the trucks from 250,000
barrels to 41,667 barrels.
3. Update Condition II.B.1.c to increase the Reid Vapor Pressure (RVP) limit provision from 8psi to 15
psi.

The changes will decrease VOC emissions by 0.06 tpy.

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 0 861.00
Carbon Monoxide 0 0.59
Nitrogen Oxides 0 0.71
Particulate Matter - PM10 0 0.05
Particulate Matter - PM2.5 0 0.05
Sulfur Dioxide 0 0.00
Volatile Organic Compounds -0.06 20.66

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Benzene (Including Benzene From Gasoline) (CAS #71432) 0 60
Hexane (CAS #110543) 0 460
Toluene (CAS #108883) 0 20
Xylenes (Isomers And Mixture) (CAS #1330207) 0 20
Change (TPY) Total (TPY)
Total HAPs 0 0.28

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]

DAQE-AN142220005-24
Page 5

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]

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]

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Petroleum Pumping Station
Myton Petroleum Pipeline Pumping Station

II.A.2 Equipment Leaks
Various Process Connection/Process Control Device Equipment Leaks

II.A.3 Two (2) Boilers
Fuel: Natural Gas
Ratings:
One at 1,125,000 Btu/hr
One at 476,000 Btu/hr

*Listed for information purposes only.

II.A.4 Various Comfort Heaters
Fuel: Natural Gas
Ratings: Less than 5,000,000 Btu/hr, each

*Listed for information purposes only.

DAQE-AN142220005-24
Page 6

II.A.5 Tank 132
Type: External Floating Roof Tank
Capacity: 30,000 barrels (1,260,000 gallons)
Contents: Crude Oil
Installed: 1949
Color: White

II.A.6 Tank 131
Type: Vertical Fixed Roof Tank
Capacity: 15,000 barrels (630,000 gallons)
Contents: Crude Oil
Installed: 1949
Color: White

II.A.7 Truck Racks
Three (3) station crude oil off-loading racks and two (2) on-loading racks

SECTION II: SPECIAL PROVISIONS

II.B REQUIREMENTS AND LIMITATIONS

II.B.1 Myton Pumping Station Requirements
II.B.1.a The owner/operator shall not allow visible emissions from any point or fugitive emission source
on site to exceed 20% opacity. [R307-401-8]

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

II.B.1.b The owner/operator shall not exceed the following throughput limits:

A. 3,796,000 barrels of crude oil throughput to the tanks per rolling 12-month
period

B. 41,667 barrels of crude oil on-loaded onto the trucks per rolling 12-month
period.

[R307-401-8]

II.B.1.b.1 The owner/operator shall:

A. Determine crude oil throughput by examination of company and/or customer
billing records

B. Record crude oil throughput on a monthly basis

C. Use the crude oil throughput to calculate a new rolling 12-month total by the
20th day of each month using data from the previous 12 months

D. Keep crude oil throughput records for all periods the plant is in operation.

[R307-401-8]

II.B.1.c The owner/operator shall not store crude oil with a Reid Vapor Pressure (RVP) exceeding 15 psi
in Tank 132. [R307-401-8]

DAQE-AN142220005-24
Page 7

II.B.1.c.1 The owner/operator shall:

A. Determine crude oil RVP using ASTM Method D6377

B. Record crude oil RVP on a monthly basis

C. Keep crude oil RVP records for all periods the plant is in operation.

[R307-401-8]

II.B.1.d The owner/operator shall comply with all applicable requirements of UAC R307-327. Ozone
Nonattainment and Maintenance Areas: Petroleum Liquid Storage. [R307-327]

II.B.1.e The owner/operator shall load the tanks on site by the use of submerged loading. [R307-401-8]

PERMIT HISTORY

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

Supersedes AO DAQE-AN142220004-23 dated April 25, 2023
Is Derived From NOI dated December 11, 2023

DAQE-AN142220005-24
Page 8

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

-. - '
State of Utah
SPENCER J. COX
(jove nor
DEIDRE HENDERSON
I .iculeiian do' ernor
Department of
Environmental Quality
Kimberly 0. Shelley
Executive Director
DIVISION OF AIR QUALITY
BryceC Bird
RN 142220005
January 30, 2024
Gretsel Marshall
Chevron Pipe Line Company
651 S Redwood Road
North Salt Lake, UT 84054
[e-mail]
Dear Gretsel Marshall,
Re: Engineer Review - Administrative Amendment:
Administrative Amendment to Approval Order to DAQE-AN142220004-23 to Reduce Crude Oil
Throughput, Resulting in a Reduction in Air Pollutants under Rule R307-401-12
Project Number: N 142220005
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 (NSR) permitting program. Chevron
Pipe Line Company should complete this review within 10 business days of receipt.
Chevron Pipe Line Company should contact Christine Bodell at [phone] if there are questions or
concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email
Christine Bodell at [e-mail] the signed cover letter. Upon receipt of the signed cover letter,
the DAQ will prepare an Approval Order (AO) for signature by the DAQ Director.
If Chevron Pipe Line Company does not respond to this letter within 10 business days, the project will
move forward without source concurrence. If Chevron Pipe Line Company 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 Nonh 1950 West " Salt Lake City. UT
Mailing Address: P.O. Box 144820 " Salt Lake City. UT 81114-4820
Telephone [phone] " Fax [phone] " T,DD. (801 t 903-3978
ini.drq.ziwh.goi
Printed on 100% recycled paper
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW
SOURCE INFORMATION
Project Number N 142220005
Owner Name Chevron Pipe Line Company
Mailing Address 651 S Redwood Road
North Salt Lake, UT, 84054
Source Name Chevron Pipe Line Company- Myton Station
Source Location 9900 South 4500 West
Myton, UT 84052
UTM Projection 578,493 m Easting, 4,445,816 m Northing
UTM Datum NAD83
UTMZone UTM Zone 12
SIC Code 4612 (Crude Petroleum Pipelines)
Source Contact Gretsel Marshall
Phone Number [phone]
Email [e-mail]
Billing Contact
Phone Number
Email
Gretsel Marshall
[phone]
[e-mail]
Project Engineer
Phone Number
Email
Notice of Intent (NOT) Submitted
Date of Accepted Application
Christine Bodell, Engineer
[phone]
[e-mail]
December 18, 2023
December 28, 2023
Engineer Review N142220005: Chevron Pipe Line Company- Mylon Station
January 30, 2024
Page I
SOURCE DESCRIPTION
General Description
Chevron Pipe Line Company (Chevron) owns and operates the Myton petroleum pipeline
pumping station that transports crude oil from the Rangely Oil Field to Salt Lake City for
refining. During normal operations, petroleum liquids are routinely trucked to the Myton Station,
unloaded to a storage tank (Tank 132), and injected into the pipeline for continued transportation
by pipeline to Salt Lake City. Additionally, Chevron Pipe Line has two permanent loading bays
which can be used to load crude from the Tank 131 into tanker trucks for off-site delivery. The
truck loading is only used during emergencies in which refineries would run out of crude and/or
upstream production would need to be shut in. Petroleum liquids are bottom loaded to tanker
trucks.
Electrical pumps are used to boost the pressure in the pipeline. The facility operates continuously,
24 hours per day, 365 days per year.
NSR Classification:
Administrative Amendment
Source Classification
Located in Uinta Basin 03 NAA
Duchesne County
Airs Source Size: B
Applicable Federal Standards
None
Proiect Proposal
Administrative Amendment to Approval Order to DAQE-ANl42220004-23 to Reduce Crude Oil
Throughput, Resulting in a Reduction in Air Pollutants under Rule R307-401-12
Project Description
Chevron Pipeline Company (Chevron) has requested the following changes to Approval Order
DAQE-AN 142220004-23:
I. Update Condition II.B.l .b(A) to reduce the annual crude oil throughput to the tanks from
5,256,000 barrels to 3,796,000 barrels
2. Update Condition II.B. 1 .b(B) to reduce the annual crude oil on-loaded onto the trucks from
250,000 barrels to 41,667 barrels.
3. Update Condition II.B.l.c to increase the Reid Vapor Pressure (RVP) limit provision from 8p5i
to 15 psi
The changes will decrease VOC emissions by 0.06 tpy.
EMISSION IMPACT ANALYSIS
No criteria air pollutants and/or HAPs emissions are increasing. Therefore, no modeling is required at this time.
[Last updated December 27, 2023]
Engineer Review N142220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 2
SUMMARY OF EMISSIONS
The emissions listed below are an estimate of the total potential emissions from the source. Some
rounding of emissions is possible.
L Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent o 861.00
Carbon Monoxide o 0.59
Nitrogen Oxides o 0.71
Particulate Matter - PM10 0 0.05
Particulate Matter - PM25 0 0.05
Sulfur Dioxide o 0.00
Volatile Organic Compounds -0.06 20.66
F Hazardous Air Pollutant Change (Ibs/yr) Total (Ibs/yr)
Benzene (Including Benzene From Gasoline) (CAS #7 1432) 0 60
ilexane (CAS#110543) 0 460
Toluene (CAS#108883) 0 20
Xylenes (Isomers And Mixture) (CAS #1330207) 0 20
_______________________________________________________ Change (TPY) Total (TPY) I Total HAPs 0 0.28
Note: C/za;,ge in emissions indicates the difference between previous AU and proposed modification.
Engineer Review N 142220005: Chevron Pipe Line Company- Myton Station
January 30. 2024
Page 3
Review of BACT for New/Modified Emission Units
BACT review regarding Requested Changes
This project is an administrative amendment for a reduction in air pollutants (UAC Rule R307-
401-12). Under UAC R307-40 1-12(1), Chevron is not required to submit a notice of intent.
Therefore, no BACT is required at this time. [Last updated December 27, 2023]
SECTION I: GENERAL PROVISIONS
The intent is to issue an air quality AU authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the
AU. (New or Modified conditions are indicated as "New" in the Outline Label):
1.1 All definitions, terms, abbreviations, and references used in this AU conform to those used in
the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AG conditions
refer to those rules. [R307-101]
1.2 The limits set forth in this AG shall not be exceeded without prior approval. [R307-401]
1.3 Modifications to the equipment or processes approved by this AU that could affect the
emissions covered by this AU must be reviewed and approved. [R307-401]
1.4 All records referenced in this AG 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 AG or in other applicable state and federal rules, records
shall be kept for a minimum of two (2) years. [R307-401-8]
1.5 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 AG,
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 AU shall be recorded. [R307-
40 1-4]
1.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]
1.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-
150]
Engineer Review N]42220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 4
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. I Petroleum Pumping Station
Myton Petroleum Pipeline Pumping Station
II.A.2 Equipment Leaks
Various Process Connection/Process Control Device Equipment Leaks
II.A.3 Two (2) Boilers
Fuel: Natural Gas
Ratings:
One at 1,125,000 Btu/hr
One at 476,000 Btu/hr
*Listed for information purposes only.
II.A.4 Various Comfort Heaters
Fuel: Natural Gas
Ratings: Less than 5,000,000 Btu/hr, each
*Listed for information purposes only.
II.A.5 Tank 132
Type: External Floating Roof Tank
Capacity: 30,000 barrels (1,260,000 gallons)
Contents: Crude Oil
Installed: 1949
Color: White
II.A.6 Tank 131
Type: Vertical Fixed Roof Tank
Capacity: 15,000 barrels (630,000 gallons)
Contents: Crude Oil
Installed: 1949
Color: White
II.A.7 Truck Racks
Three (3) station crude oil off-loading racks and two (2) on-loading racks
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):
Engineer Review N 142220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 5
II.B REOUIREMENTS AND LIMITATIONS
II.B.l Myton Pumping Station Requirements
II.B. l.a The owner/operator shall not allow visible emissions from any point or fugitive emission
source on site to exceed 20% opacity. [R307-401-8]
II.B.1 .a. 1 Opacity observations of emissions from stationary sources shall be conducted according to 40
CFR 60, Appendix A, Method 9. [R307-401-8]
JIB. I .b The owner/operator shall not exceed the following throughput limits:
NEW
A. 3,796,000 barrels of crude oil throughput to the tanks per rolling 12-month period
B. 41,667 barrels of crude oil on-loaded onto the trucks per rolling 12-month period
[R307-40 1-8]
II.B.1.b.1 The owner/operator shall:
NEW
A. Determine crude oil throughput by examination of company andlor customer
billing records
B. Record crude oil throughput on a monthly basis
C. Use the crude oil throughput to calculate a new rolling 12-month total by the 20th
day of each month using data from the previous 12 months
D. Keep crude oil throughput records for all periods the plant is in operation.
[R307-401-8]
II.B.1 .c The owner/operator shall not store crude oil with a Reid Vapor Pressure (RVP) exceeding 15
NEW psi in Tank 132. [R307-401-8]
II.B.l.c.1 The owner/operator shall:
NEW
A. Determine crude oil RVP using ASTM Method D6377
B. Record crude oil RVP on a monthly basis
C. Keep crude oil RVP records for all periods the plant is in operation
[R307-40 1-8]
II.B. 1 .d The owner/operator shall comply with all applicable requirements of UAC R307-327. Ozone
Nonattainment and Maintenance Areas: Petroleum Liquid Storage. [R307-327]
II.B.1 .e The owner/operator shall load the tanks on site by the use of submerged loading. [R307-40 I -
8]
Engineer Review N!42220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 6
PERMIT HISTORY
When issued, the approval order shall supersede (if a modification) or will be based on the
following documents:
Supersedes Approval Order DAQE-AN142220004-23 dated April 25, 2023
Is Derived From NOT dated December 11, 2023
REVIEWER COMMENTS
Comment regarding Reduction in Air Pollutants under UAC R307-401-12 and Emission
Calculations:
Chevron has requested to reduce the annual crude oil throughput to the tanks from 5,256,000 barrels
to 3,796,000 barrels and to reduce the annual crude oil on-loaded onto the trucks from 250,000
barrels to 41,667 barrels. Chevron has also requested to increase the Reid Vapor Pressure (RVP)
limit provision from 8psi to 15 psi. These changes will reduce VOC emissions by 0.06 tpy.
VOC emissions from the tanks were estimated using EPA Tanks 4.09d software. The lighter crude
petroleum liquid is modeled assuming the product has a Reid Vapor Pressure (RVP) not to exceed
15. The actual product routed through Tank 132 are a lighter crude material that will have a lower
volatility than a traditional gasoline product. Therefore, emissions from EPA Tanks are conservative
and an overestimate. Emissions from the black wax crude assumes an RVP of 2.5 which is also a
conservative estimate of emissions from the petroleum product.
Truck loading emission estimates were calculated using EPA AP-42 Chapter 5.2: Transportation and
Marketing of Petroleum Liquids. Maximum throughput is 41,667 barrels of crude oil per year.
To estimate fugitive VOC emissions, the total number of components (valves, pump seals, etc.) 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 2-4 to find the total mass emitted
from each component by service.
Emissions from the natural gas boilers are based on manufacturer data and AP-42, Section 1 .4,
Natural Gas Combustion using tables 1.4-1, -2 and -3. [Last updated December 28, 2023]
2. Comment regarding 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.
This Subpart is applicable to each storage vessel with a capacity greater than or equal to 75 cubic
meters (19,813 gallons) that is used to store volatile organic liquids (VOL) for which construction,
reconstruction, or modification is commenced after July 23, 1984. Both tanks were installed in 1949.
Therefore, NSPS Subpart Kb does not apply to this facility.
NSPS Subpart XX - Standards of Performance for Bulk Gasoline Terminals
The Myton Pump Station does not handle gasoline; and therefore, is not considered a bulk gasoline
Engineer Review N 142220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 7
terminal as defined in §60.501. Therefore, NSPS Subpart XX does not apply to this facility.
Subpart 0000a - Standards of Performance for Crude Oil and Natural Gas Facilities for which
Construction. Modification or Reconstruction Commenced After September 18, 2015
This Subpart is applicable to owners or operators of one or more of the onshore affected facilities
regulated under this Subpart, that is located within the Crude Oil and Natural Gas Production source
category. Crude Oil and Natural Gas Production source category means crude oil production, which
includes the well and extends to the point of custody transfer to the crude oil transmission pipeline or
any other forms of transportation. Custody transfer means the transfer of crude oil from storage
vessels or automatic transfer facilities or other such equipment, including product loading racks, to
pipelines or any other forms of transportation. This facility receives the crude oil that is transferred
from another facility. Therefore, NSPS Subpart 0000a does not apply to this facility. [Last
updated December 27, 2023]
3. Comment regarding Title V Applicability:
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 not subject to 40 CFR
60 (NSPS), 40 CFR 61 (NESHAP), or 40 CFR Part 63 (MACT) regulations. Therefore, this facility
is not a Title V source. [Last updated December 27, 2023]
Engineer Review N142220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 8
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-I
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
NO 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
Engineer Review N142220005: Chevron Pipe Line Company- Myton Station
January 30, 2024
Page 9
Emission Source Throughput (bbl/day)Throughput (gallon/year)PM10 PM2.5 NOx CO SO2 VOC
#132 Condensate (RVP 8) current permit 9600 147,168,000 NA NA NA NA NA 3.33
#131 Black Wax Tank current permit 4800 73,584,000 NA NA NA NA NA 12.32
Truck Loading Racks (RVP 2.5) current permit 250,000 barrel/year NA NA NA NA NA 4.69
Fugitives current permit NA NA NA NA NA 0.34
Boilers and Heaters current permit 0.05 0.05 0.71 0.60 0.00 0.04
20.72
Original VOC Limit (TPY)
(RVP8, 4800 bbl/day Black wax, loading racks,
fugitives, boilers) current permit 20.72
New VOC Limit (TPY)
(RVP15, 800 bbl/day Black wax, 41,667 gal/year
loading racks, fugitives, boilers) 20.66
Emission reduction 0.07
Emission Source Throughput (bbl/day)Throughput (gallon/year)NA NA NA NA NA VOC
#132 Condensate (RVP 15) Higher RVP 9600 147,168,000 NA NA NA NA NA 14.17
#131 Black Wax Tank Throughput decrease 800.00 12,264,000 NA NA NA NA NA 5.33
Truck Loading Racks (RVP 2.5) Throughput decrease 41,667 barrel/year NA NA NA NA NA 0.78
Fugitives current permit, No change NA NA NA NA NA 0.34
Boilers and Heaters current permit, No change 0.05 0.05 0.71 0.60 0.00 0.04
20.66
Chevron Pipeline Company
Myton Station
Potential Emissions
Current Permit
Reduction
TANKS 4.0.9d
Emissions Report - Detail Format
Tank Indentification and Physical Characteristics
Identification
User Identification: Myton Tank #132 - PTE; EFRT 9600 bbl Cond
City: Myton
State: Utah
Company: Chevron
Type of Tank: External Floating Roof Tank
Description:
Tank Dimensions
Diameter (ft): 67.00
Volume (gallons): 1,260,000.00
Turnovers: 116.80
Paint Characteristics
Internal Shell Condition: Light Rust
Shell Color/Shade: White/White
Shell Condition Good
Roof Characteristics
Type: Pontoon
Fitting Category Detail
Tank Construction and Rim-Seal System
Construction: Welded
Primary Seal: Mechanical Shoe
Secondary Seal Rim-mounted
Deck Fitting/Status Quantity
Access Hatch (24-in. Diam.)/Bolted Cover, Gasketed 1
Automatic Gauge Float Well/Unbolted Cover, Ungasketed 1
Vacuum Breaker (10-in. Diam.)/Weighted Mech. Actuation, Gask.1
Unslotted Guide-Pole Well/Ungasketed Sliding Cover 1
Gauge-Hatch/Sample Well (8-in. Diam.)/Weighted Mech. Actuation, Gask.1
Roof Leg (3-in. Diameter)/Adjustable, Pontoon Area, Ungasketed 13
Roof Leg (3-in. Diameter)/Adjustable, Center Area, Ungasketed 9
Rim Vent (6-in. Diameter)/Weighted Mech. Actuation, Gask.1
Meterological Data used in Emissions Calculations: Grand Junction, Colorado (Avg Atmospheric Pressure = 12.37 psia)
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TANKS 4.0.9d
Emissions Report - Detail Format
Liquid Contents of Storage Tank
Myton Tank #132 - PTE; EFRT 9600 bbl Cond - External Floating Roof Tank
Myton, Utah
Daily Liquid Surf.
Temperature (deg F)
Liquid
Bulk
Temp Vapor Pressure (psia)
Vapor
Mol.
Liquid
Mass
Vapor
Mass Mol. Basis for Vapor Pressure
Mixture/Component Month Avg. Min. Max. (deg F) Avg. Min. Max. Weight. Fract. Fract. Weight Calculations
Gasoline (RVP 15.0) All 55.06 48.57 61.56 52.95 7.2597 N/A N/A 60.0908 92.07 Option 4: RVP=15, ASTM Slope=3
1,2,4-Trimethylbenzene 0.0167 N/A N/A 120.1900 0.0023 0.0000 120.19 Option 2: A=7.04383, B=1573.267, C=208.56
2,2,4-Trimethylpentane (isooctane) 0.5158 N/A N/A 114.2300 0.0007 0.0001 114.23 Option 2: A=6.8118, B=1257.84, C=220.74
Benzene 1.0168 N/A N/A 78.1100 0.0017 0.0004 78.11 Option 2: A=6.905, B=1211.033, C=220.79
Cresol (-m)0.0011 N/A N/A 108.1000 0.0004 0.0000 108.10 Option 2: A=7.508, B=1856.36, C=199.07
Ethylbenzene 0.0912 N/A N/A 106.1700 0.0012 0.0000 106.17 Option 2: A=6.975, B=1424.255, C=213.21
Gasoline (RVP 15.0)7.4388 N/A N/A 60.0000 0.9718 0.9951 92.00 Option 4: RVP=15, ASTM Slope=3
Hexane (-n)1.6803 N/A N/A 86.1700 0.0117 0.0041 86.17 Option 2: A=6.876, B=1171.17, C=224.41
Isopropyl benzene 0.0399 N/A N/A 120.2000 0.0003 0.0000 120.20 Option 2: A=6.93666, B=1460.793, C=207.78
Naphthalene 0.0020 N/A N/A 128.2000 0.0006 0.0000 128.20 Option 2: A=7.3729, B=1968.36, C=222.61
Toluene 0.2826 N/A N/A 92.1300 0.0036 0.0002 92.13 Option 2: A=6.954, B=1344.8, C=219.48
Xylenes (mixed isomers)0.0758 N/A N/A 106.1700 0.0057 0.0001 106.17 Option 2: A=7.009, B=1462.266, C=215.11
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TANKS 4.0.9d
Emissions Report - Detail Format
Detail Calculations (AP-42)
Myton Tank #132 - PTE; EFRT 9600 bbl Cond - External Floating Roof Tank
Myton, Utah
Annual Emission Calcaulations
Rim Seal Losses (lb): 3,380.3780
Seal Factor A (lb-mole/ft-yr): 0.6000
Seal Factor B (lb-mole/ft-yr (mph)^n): 0.4000
Average Wind Speed (mph): 8.1500
Seal-related Wind Speed Exponent: 1.0000
Value of Vapor Pressure Function: 0.2175
Vapor Pressure at Daily Average Liquid
Surface Temperature (psia): 7.2597
Tank Diameter (ft): 67.0000
Vapor Molecular Weight (lb/lb-mole): 60.0908
Product Factor: 1.0000
Withdrawal Losses (lb): 415.8041
Annual Net Throughput (gal/yr.): 147,168,000.0000
Shell Clingage Factor (bbl/1000 sqft): 0.0015
Average Organic Liquid Density (lb/gal): 5.6208
Tank Diameter (ft): 67.0000
Roof Fitting Losses (lb): 24,543.5133
Value of Vapor Pressure Function: 0.2175
Vapor Molecular Weight (lb/lb-mole): 60.0908
Product Factor: 1.0000
Tot. Roof Fitting Loss Fact.(lb-mole/yr): 1,877.7318
Average Wind Speed (mph): 8.1500
Total Losses (lb): 28,339.6954
Roof Fitting Loss Factors
Roof Fitting/Status Quantity KFa(lb-mole/yr) KFb(lb-mole/(yr mph^n)) m Losses(lb)
Access Hatch (24-in. Diam.)/Bolted Cover, Gasketed 1 1.60 0.00 0.00 20.9133
Automatic Gauge Float Well/Unbolted Cover, Ungasketed 1 14.00 5.40 1.10 662.2593
Vacuum Breaker (10-in. Diam.)/Weighted Mech. Actuation, Gask. 1 6.20 1.20 0.94 161.6447
Unslotted Guide-Pole Well/Ungasketed Sliding Cover 1 31.00 150.00 1.40 22,851.8868
Gauge-Hatch/Sample Well (8-in. Diam.)/Weighted Mech. Actuation, Gask. 1 0.47 0.02 0.97 7.5588
Roof Leg (3-in. Diameter)/Adjustable, Pontoon Area, Ungasketed 13 2.00 0.37 0.91 646.4901
Roof Leg (3-in. Diameter)/Adjustable, Center Area, Ungasketed 9 0.82 0.53 0.14 176.0232
Rim Vent (6-in. Diameter)/Weighted Mech. Actuation, Gask. 1 0.71 0.10 1.00 16.7372
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TANKS 4.0.9d
Emissions Report - Detail Format
Individual Tank Emission Totals
Emissions Report for: Annual
Myton Tank #132 - PTE; EFRT 9600 bbl Cond - External Floating Roof Tank
Myton, Utah
Losses(lbs)
Components Rim Seal Loss Withdrawl Loss Deck Fitting Loss Deck Seam Loss Total Emissions
Gasoline (RVP 15.0) 3,380.38 415.80 24,543.51 0.00 28,339.70
1,2,4-Trimethylbenzene 0.03 0.96 0.20 0.00 1.18
2,2,4-Trimethylpentane (isooctane) 0.26 0.29 1.87 0.00 2.42
Benzene 1.23 0.71 8.95 0.00 10.89
Cresol (-m) 0.00 0.17 0.00 0.00 0.17
Ethylbenzene 0.08 0.50 0.57 0.00 1.14
Hexane (-n) 14.03 4.86 101.84 0.00 120.73
Isopropyl benzene 0.01 0.12 0.06 0.00 0.20
Naphthalene 0.00 0.25 0.01 0.00 0.26
Toluene 0.73 1.50 5.27 0.00 7.49
Xylenes (mixed isomers) 0.31 2.37 2.24 0.00 4.92
Gasoline (RVP 15.0)3,363.71 404.08 24,422.50 0.00 28,190.29
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TANKS 4.0.9d
Emissions Report - Detail Format
Tank Indentification and Physical Characteristics
Identification
User Identification: Myton Tank #131 - PTE Black Wax
City: Myton
State: Utah
Company: Chevron
Type of Tank: Vertical Fixed Roof Tank
Description: VFR Tank
Tank Dimensions
Shell Height (ft): 34.00
Diameter (ft): 52.00
Liquid Height (ft) : 34.00
Avg. Liquid Height (ft): 34.00
Volume (gallons): 540,142.91
Turnovers: 22.71
Net Throughput(gal/yr): 12,264,000.00
Is Tank Heated (y/n): Y
Paint Characteristics
Shell Color/Shade: White/White
Shell Condition Good
Roof Color/Shade: White/White
Roof Condition: Good
Roof Characteristics
Type: Cone
Height (ft) 0.00
Slope (ft/ft) (Cone Roof) 0.06
Breather Vent Settings
Vacuum Settings (psig): 0.00
Pressure Settings (psig) 0.00
Meterological Data used in Emissions Calculations: Grand Junction, Colorado (Avg Atmospheric Pressure = 12.37 psia)
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TANKS 4.0.9d
Emissions Report - Detail Format
Liquid Contents of Storage Tank
Myton Tank #131 - PTE Black Wax - Vertical Fixed Roof Tank
Myton, Utah
Daily Liquid Surf.
Temperature (deg F)
Liquid
Bulk
Temp Vapor Pressure (psia)
Vapor
Mol.
Liquid
Mass
Vapor
Mass Mol. Basis for Vapor Pressure
Mixture/Component Month Avg. Min. Max. (deg F) Avg. Min. Max. Weight. Fract. Fract. Weight Calculations
Crude oil (RVP 2.5) All 100.00 100.00 100.00 100.00 0.9662 0.8401 1.1076 50.0000 207.00
1,2,4-Trimethylbenzene 0.0878 0.0878 0.0878 120.1900 0.0000 0.0000 120.19 Option 2: A=7.04383, B=1573.267, C=208.56
2,2,4-Trimethylpentane (isooctane) 1.7084 1.7084 1.7084 114.2300 0.0000 0.0001 114.23 Option 2: A=6.8118, B=1257.84, C=220.74
Benzene 3.2193 3.2193 3.2193 78.1100 0.0000 0.0002 78.11 Option 2: A=6.905, B=1211.033, C=220.79
Cresol (-m)0.0090 0.0090 0.0090 108.1000 0.0000 0.0000 108.10 Option 2: A=7.508, B=1856.36, C=199.07
Crude oil (RVP 5)5.9684 5.9684 5.9684 50.0000 0.0097 0.0600 207.00 Option 4: RVP=5
Ethylbenzene 0.3862 0.3862 0.3862 106.1700 0.0000 0.0000 106.17 Option 2: A=6.975, B=1424.255, C=213.21
Hexane (-n)4.9599 4.9599 4.9599 86.1700 0.0001 0.0025 86.17 Option 2: A=6.876, B=1171.17, C=224.41
Isopropyl benzene 0.1880 0.1880 0.1880 120.2000 0.0000 0.0000 120.20 Option 2: A=6.93666, B=1460.793, C=207.78
Naphthalene 0.0126 0.0126 0.0126 128.2000 0.0000 0.0000 128.20 Option 2: A=7.3729, B=1968.36, C=222.61
Toluene 1.0303 1.0303 1.0303 92.1300 0.0000 0.0002 92.13 Option 2: A=6.954, B=1344.8, C=219.48
Unidentified Components 0.9160 0.8574 0.9160 49.9313 0.9900 0.9369 207.07
Xylenes (mixed isomers)0.3259 0.3259 0.3259 106.1700 0.0001 0.0001 106.17 Option 2: A=7.009, B=1462.266, C=215.11
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TANKS 4.0.9d
Emissions Report - Detail Format
Detail Calculations (AP-42)
Myton Tank #131 - PTE Black Wax - Vertical Fixed Roof Tank
Myton, Utah
Annual Emission Calcaulations
Standing Losses (lb): 77.0966
Vapor Space Volume (cu ft): 1,150.3465
Vapor Density (lb/cu ft): 0.0080
Vapor Space Expansion Factor: 0.0235
Vented Vapor Saturation Factor: 0.9730
Tank Vapor Space Volume:
Vapor Space Volume (cu ft): 1,150.3465
Tank Diameter (ft): 52.0000
Vapor Space Outage (ft): 0.5417
Tank Shell Height (ft): 34.0000
Average Liquid Height (ft): 34.0000
Roof Outage (ft): 0.5417
Roof Outage (Cone Roof)
Roof Outage (ft): 0.5417
Roof Height (ft): 0.0000
Roof Slope (ft/ft): 0.0625
Shell Radius (ft): 26.0000
Vapor Density
Vapor Density (lb/cu ft): 0.0080
Vapor Molecular Weight (lb/lb-mole): 50.0000
Vapor Pressure at Daily Average Liquid
Surface Temperature (psia): 0.9662
Daily Avg. Liquid Surface Temp. (deg. R): 559.6700
Daily Average Ambient Temp. (deg. F): 52.9333
Ideal Gas Constant R
(psia cuft / (lb-mol-deg R)): 10.731
Liquid Bulk Temperature (deg. R): 559.6700
Tank Paint Solar Absorptance (Shell): 0.1700
Tank Paint Solar Absorptance (Roof): 0.1700
Daily Total Solar Insulation
Factor (Btu/sqft day): 1,578.3125
Vapor Space Expansion Factor
Vapor Space Expansion Factor: 0.0235
Daily Vapor Temperature Range (deg. R): 0.0000
Daily Vapor Pressure Range (psia): 0.2675
Breather Vent Press. Setting Range(psia): 0.0000
Vapor Pressure at Daily Average Liquid
Surface Temperature (psia): 0.9662
Vapor Pressure at Daily Minimum Liquid
Surface Temperature (psia): 0.8401
Vapor Pressure at Daily Maximum Liquid
Surface Temperature (psia): 1.1076
Daily Avg. Liquid Surface Temp. (deg R): 559.6700
Daily Min. Liquid Surface Temp. (deg R): 559.6700
Daily Max. Liquid Surface Temp. (deg R): 559.6700
Daily Ambient Temp. Range (deg. R): 25.6333
Vented Vapor Saturation Factor
Vented Vapor Saturation Factor: 0.9730
Vapor Pressure at Daily Average Liquid:
Surface Temperature (psia): 0.9662
Vapor Space Outage (ft): 0.5417
Working Losses (lb): 10,579.8900
Vapor Molecular Weight (lb/lb-mole): 50.0000
Vapor Pressure at Daily Average Liquid
Surface Temperature (psia): 0.9662
Annual Net Throughput (gal/yr.): 12,264,000.0000
Annual Turnovers: 22.7051
Turnover Factor: 1.0000
Maximum Liquid Volume (gal): 540,142.9126
Maximum Liquid Height (ft): 34.0000
Tank Diameter (ft): 52.0000
Working Loss Product Factor: 0.7500
Total Losses (lb): 10,656.9866
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TANKS 4.0.9d
Emissions Report - Detail Format
Individual Tank Emission Totals
Emissions Report for: Annual
Myton Tank #131 - PTE Black Wax - Vertical Fixed Roof Tank
Myton, Utah
Losses(lbs)
Components Working Loss Breathing Loss Total Emissions
Crude oil (RVP 2.5) 10,579.89 77.10 10,656.99
1,2,4-Trimethylbenzene 0.09 0.00 0.09
2,2,4-Trimethylpentane (isooctane) 0.54 0.00 0.55
Benzene 2.48 0.02 2.50
Naphthalene 0.00 0.00 0.00
Toluene 1.68 0.01 1.69
Xylenes (mixed isomers) 0.84 0.01 0.85
Crude oil (RVP 5) 634.98 4.63 639.60
Unidentified Components 9,912.73 72.23 9,984.96
Cresol (-m) 0.00 0.00 0.00
Ethylbenzene 0.21 0.00 0.21
Hexane (-n) 26.31 0.19 26.50
Isopropyl benzene 0.03 0.00 0.03
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Contents
Vapor Pressure
Data
Actual
Throughput,
bbls
Potential
Throughput,
bbls TP, 1000 gal M P T S VRE
VOC
lbs/1000
gal
Actual VOC,
tons
PTE VOC,
tons
Crude Oil Crude (RVP 2.5) 0 41,667 1,750 68 0.9 511.67 0.6 0 0.89 0.00 0.78
Notes:
1. Loading losses calculated per AP-42, Section 5.2.
2. M as per fuel type in AP-42 Table 7.1-2.
3. P for crude oil from AP-42, Section 7.1, figure 7.1-13a.
4. T from annual average mean temperature for Rangely, CO.
5. S for submerged loading.
6. No Vapor Recovery, VRE = 0
7. TP based permit limit 250,000 bbls.
Key:
S = Saturation Factor
T = Temperature of Bulk Liquided Loaded ®
TP = Throughput
P = True Vapor Pressure of Liquid Loaded (psia)
M = Molecular Weight of Vapors
VRE = Vapor Recovery Efficiency
Pollutant CAS
Liquid Weight
Fraction
Vapor Weight
Fraction lbs/1000 gal
Actual Truck
Loading (lb/yr)
Actual
Truck
Loading
(ton/yr)
PTE Truck
Loading
(lb/yr)
PTE Truck
Loading
(ton/yr)
1,2,4-Trimethylbenzene 95-63-6 2.33E-03 3.22E-05 2.88E-05 0.00 0.00 0.05 2.52E-05
2,2,4-Trimethylpentane 540-84-1 2.33E-03 3.33E-04 2.98E-04 0.00 0.00 0.00 1.48E-06
Benzene 71-43-2 1.69E-03 1.58E-03 1.41E-03 0.00 0.00 2.47 1.24E-03
Biphenyl 92-52-4 2.40E-04 1.33E-10 1.19E-10 0.00 0.00 2.08E-07 1.04E-10
Cresol 1319-77-3 3.70E-04 3.59E-07 3.21E-07 0.00 0.00 5.62E-04 2.81E-07
Ethylbenzene 100-41-4 1.18E-03 9.30E-05 8.32E-05 0.00 0.00 0.15 7.28E-05
Hexane (-n)110-54-3 1.17E-02 1.84E-02 1.65E-02 0.00 0.00 28.79 1.44E-02
Isopropyl benzene 98-82-8 3.20E-04 1.08E-05 9.66E-06 0.00 0.00 0.02 8.45E-06
Napthalene 91-20-3 5.70E-04 1.21E-06 1.08E-06 0.00 0.00 0.002 9.47E-07
Toluene 108-88-3 3.60E-03 9.07E-04 8.11E-04 0.00 0.00 1.42 7.10E-04
Xylenes (mixed isomers)1330-20-7 5.68E-03 5.38E-04 4.81E-04 0.00 0.00 0.84 4.21E-04
Chevron Pipeline Company
Myton Station
2022 Potential Truck Loading Emissions
HAP Emissions
Criteria 132 Tank 131 Tank Loading Fugitivies Boilers TotalNOX0.00 0.00 0.00 0.00 0.71 0.71
CO 0.00 0.00 0.00 0.00 0.60 0.60PM100.00 0.00 0.00 0.00 0.05 0.05
PM2.5 0.00 0.00 0.00 0.00 0.50 0.50
SO2 0.00 0.00 0.00 0.00
VOC 14.17 5.33 0.78 0.34 0.04 20.66
Lead 0.00 0.00 0.00 0.00 0.00 0.00
HAP 0.13 0.04 0.10 0.00 0.01 0.28
Criteria 132 Tank 131 Tank Loading Fugitivies Boilers Total
HAPs 251.99 78.83 202.45 7.79 26.83 567.89
0.283945
Criteria 132 Tank 131 Tank Loading Fugitivies Boilers Total
HAPs 0.03 0.01 0.02 0.00 0.00 0.06
TPY
HAPS (lb/year)
HAPS (lb/hour)
Emission Source Method
132 Tank EPA Tanks
131 Tank EPA TanksLoading Racks AP42 5.2
Ll = 12.46 *12.46 SPM/T
S 0.6 (submerge
P 0.9
M 68
T 511.67 51.67
*crude oil (RVP 8)
EF 0.89419196 lb/1000 ga
Throughput 41,667.00 bbl
1,750,014.00 gal
Emissions 1,564.85 lb/yea
0.78 tpy
Fugitives Protocol for Equipment Leak Emission Estimates, November 1995
Table 2-4
Valves Sample Calc
8.40E-06
2.50E-03
1.25E-03
EF 4.30E-05 kg/hr/eq
EF 9.46E-05 lb/hr/eq
N 287
Emissions 2.38E+02 lb/year
Emissions 1.19E-01 tpy
*High vapor pressures indicate a high volatility
l transferred

December 18, 2023

Attention: Christine Bodell
Utah Division of Air Quality
195 North 1950 West
PO Box 144820
Salt Lake City, Utah 84114-4820

RE: Request for reduction in Air Pollutants at the Chevron Pipe Line Myton Pump Station
under AO DAQE-AN14220003-14

Christine,

Chevron Pipeline and Power (CPP) is working on a project to accommodate a wider range of
suppliers while reducing air pollutants. Per Utah Code R307-401-12, we are submitting a written
description of the project and would like to administratively amend AO DAQE-AN142220004-23
with proposed modifications to include:

• Modifying the RVP limit provision for Tank 132 from 8 to 15(II.B.1.c)
• Modifying RVP recordkeeping on Tank 132 to reflect performing and retaining quarterly
tank RVP sampling (II.B.1.c.1)
• Reduce throughput on Tank 132 (II.B.1.b)

Detailed calculations to support these proposed modifications forthcoming.

Please contact Gretsel Marshall at [phone]