DAQ-2024-008074

Cheuvon
Kyle Drach Chevron Products Company
HES Manager Salt Lake Refinery
685 South Chevron Way
North Salt Lake, Utah 84054
Tel [phone]
Fax [phone]
May 2,2024
CERTIFIED MAIL
RETURN RECEIPT NO. 7021 2720 0001 4083 7002
Mr. Bryce Bird, Director
Division of Air Quality
Utah Department of Environmental Quality
195 North 1950 West
P0 Box 144820
Salt Lake City, UT 84114-4820
Subject: Response to Ozone SIP RACT Analysis Request
Dear Mr. Bird,
Chevron Products Company (Chevron) Salt Lake Refinery received an email dated March
21, 2024 from the Utah Division of Air Quality requesting more information regarding
emergency equipment, furnaces, boilers, process heaters, and storge tanks that were listed in
the Reasonable Available Control Technology (RACT) analysis submitted on January 2,
2024. Chevron is providing the attached addendum in response to this request.
If there are any questions regarding this report, please contact Lauren Vander Werff at (801)
539-7386 or LVanderWerff(chevron.com
Sincerely,
Kyle Drach
HES Manager
Attachment

2023 Ozone Reasonable
Available Control
Technology Analysis
May 2024 Addendum

Chevron Salt Lake Refinery

May 2, 2024

© 2024 Chevron. All rights reserved.
Company confidential information for internal use only. Uncontrolled when printed.
This document contains Chevron’s confidential and proprietary information. Any use of this document
without express, prior, written permission from Chevron and/or its affiliates is prohibited.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Contents
1 Introduction ....................................................................................................................... 1
2 Boilers, Furnaces, Process Heaters ................................................................................. 2
3 Emergency Equipment ...................................................................................................... 6
4 Storage Tanks ................................................................................................................. 10
4.1 Fixed Roof Storage Tanks (VFRTs) ..................................................................... 10
4.2 External Floating Roof Storage Tanks (EFRTs) ................................................... 13
4.3 Tank 30043: HDN Feed Storage Tank ................................................................. 17
Appendix A: Boiler, Furnaces, Process Heaters Cost Analysis .......................................... 19
Appendix B: Emergency Equipment Cost Analysis ............................................................ 27
Appendix C: Storage Tank Cost Analysis ........................................................................... 30
Tables
Table 1: Boilers, Furnaces, and Process Heaters at Salt Lake Refinery and Technical
Feasibility of Add-on Installation of ULNB and SCR ............................................................... 3
Table 2: Cost Effectiveness of NOx Controls for Boilers, Furnaces, and Process Heaters .... 5
Table 3: Diesel-Fired Emergency Equipment at Salt Lake Refinery ....................................... 6
Table 4: Historical Authorizations of BACT for Diesel Engines ............................................... 7
Table 5: Cost Analysis for Add-on Installation of SCR on Diesel Engines and Engine
Replacement ........................................................................................................................... 8
Table 6: Technical Feasibility and Other Considerations of Controls for VFRTs .................. 11
Table 7: Ranking Control Efficiency of Controls for VFRTs .................................................. 13
Table 8: Technical Feasibility and Other Considerations of Controls for VFRTs .................. 14
Table 9: Ranking Control Efficiency of Controls for EFRTs .................................................. 16
Table 10: Evaluated Emissions Reductions for Service Swaps between Tanks 30043 and
Tank 40073 ........................................................................................................................... 18

2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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1 Introduction
On January 2, 2024 the Chevron refinery submitted a Reasonable Available
Control Technology (RACT) Analysis to the Utah Division of Air Quality (UDAQ).
UDAQ responded via email on March 21, 2024 requesting more information,
specifically cost and technical feasibility for all control technologies for emergency
equipment, furnaces, boilers, process heaters, and storage tanks. This addendum
to the January 2, 2024 submittal fulfills this request for more information.
Chevron reserves the right to perform additional evaluations related to additional
detailed engineering reviews and further cost estimation for any measures
proposed as RACT by UDAQ.

2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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2 Boilers, Furnaces, Process Heaters
Refinery process heaters and furnaces combust fuel (refinery fuel gas and/or
natural gas) and provide heat to hydrocarbon mixtures for processing in
downstream refinery areas. Boilers combust fuel (refinery fuel gas and/or natural
gas) to provide heat to vaporize water and generate steam for use in the refinery.
Emissions from these emissions units include products of combustion.
Technical Feasibility
Chevron evaluated each boiler, furnace, and process heater for ultra-low NOx
burners (ULNB) and selective catalytic reduction (SCR) using ammonia as a NOx
treatment reagent.
ULNB technologies incorporate various mechanisms of reducing NOx formation by
reducing the oxygen content of the combustion flame. Technologies include
recirculation of hot combustion flue gas (which contains little O2) back to the
combustion zone, use of staged air burner systems, and injection of steam. These
systems may also require larger burners and/or larger burner mounts. ULNBs
often create longer flame lengths or less-consistent flame patterns than other
conventional burner systems, often making retrofits challenging or infeasible. For
retrofit installation of ULNB to be technically feasible, the flames generated by
ULNB must not be too long, such that they impinge either heater tubes or the
firebox, and they must achieve the sufficient clearance listed in Section 14 of API
Standard 560.
The SCR emissions control process is based on chemical destruction of the NOx
molecule. The primary components of the SCR include the ammonia storage and
delivery system, ammonia injection grid, and the catalyst reactor. A nitrogen-based
reducing agent (reagent), such as ammonia or urea-derived ammonia, is injected
into the post-combustion flue gas. The reagent reacts selectively with the flue gas
NOx within a specific temperature range and in the presence of the catalyst and
oxygen to reduce the NOx into molecular nitrogen (N2) and water vapor (H2O).
The NOx reduction reaction is effective only within a given temperature range, and
use of a catalyst in the SCR process lowers the temperature range required to
maximize the NOx reduction reaction. According to U.S. EPA1, the optimal
temperature is between 700°F and 770°F, where approximately 90% NOx
reduction occurs. At temperatures below the specified range, the reaction kinetics
decrease, unreacted ammonia passes through the catalyst as ammonia slip and
reduced NOx reduction occurs. EPA states that at a temperature of approximately
520°F, a SCR system may achieve 50% NOx removal. At temperatures above the
optimal temperature range, NOx removal efficiency is reduced.
A list of authorized boilers, furnaces, and process heaters, and the associated
technical feasibility to configure each with ULNB or SCR is provided below in Table
1.

1 U.S. EPA’s “EPA Air Pollution Control Cost Manual”. Refer to Section 4 – NOx Controls, “Chapter 2: Selective
Catalytic Reduction”. Available as of April 29, 2024 at: https://www.epa.gov/sites/default/files/2017-
12/documents/scrcostmanualchapter7thedition_2016revisions2017.pdf.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Table 1: Boilers, Furnaces, and Process Heaters at Salt Lake Refinery and Technical Feasibility of Add-on Installation of ULNB and SCR
Unit Name
Rating
(MMBtu/hr)
Technically
Feasible
Comments ULNB SCR
Alky Furnace F-36017 108
No Yes The size of the radiant box is 11 ft, which restricts the maximum allowable flame height to 7.3 ft. The
flame height for ULNB is estimated to be 10.4 ft. Additionally, the minimum clearance for the flame is
required to be at least 15.3 ft, but would only be estimated as 0.6 ft. Therefore, ULNB flame length is
too long and does not allow for adequate clearance. Therefore, ULNB are technically infeasible.
Boilers #1-#4 N/A N/A N/A These boilers were removed in 2019.
Boiler #5 171 Yes Yes
Boiler #6 171 Yes Yes
Boiler #7 225
N/A N/A Boiler #7 was installed in 2019 with low NOx burners and fuel gas recirculation. AO AN101190094-16
concluded that the boiler meets BACT and therefore would meet the standard for RACT for this
analysis.
Coker Furnace F-7001
139.2 No Yes The size of the radiant box is 9.4 ft, which restricts the maximum allowable flame height to 6.2 ft. The
flame height for the ULNB is estimated to be 5.8 ft. Additionally, the minimum clearance for the flame
is required to be 10.9 ft. The estimated clearance is 3.6 ft. While the flame height is acceptable, the
clearance is inadequate, therefore, ULNB are technically infeasible.

Crude Furnace F-21001 130 Yes Yes
Crude Furnace F-21002 115.1 Yes Yes
FCC Furnace F-32021 48.2
No Yes The size of the radiant box is 30.8 ft, which restricts the maximum allowable flame height to 20.5 ft.
The flame height for ULNB is estimated to be 23.8 ft. Additionally, the minimum clearance for the flame
is required to be at least 28.4 ft, but would only be estimated as 7 ft. Therefore, ULNB flame length is
too long and does not allow for adequate clearance. Therefore, ULNB are technically infeasible.
FCC Furnace F-32023 48.2
No Yes The size of the radiant box is 34.8 ft, which restricts the maximum allowable flame height to 23.1 ft.
The flame height for the ULNB is estimated to be 15.4 ft. Additionally, the minimum clearance for the
flame is required to be 20.2 ft. The estimated clearance is 19 ft. While the flame height is acceptable,
the clearance is inadequate, therefore, ULNB are technically infeasible.
HDN Furnace F-71010 15.6 No Yes The size of the radiant box is 17.7 ft, which restricts the maximum allowable flame height to 11.8 ft.
The flame height for the ULNB is estimated to be 7.2 ft. Additionally, the minimum clearance for the
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Unit Name
Rating
(MMBtu/hr)
Technically
Feasible
Comments ULNB SCR
flame is required to be 12.3 ft. The estimated clearance is 10.4 ft. While the flame height is
acceptable, the clearance is inadequate, therefore, ULNB are technically infeasible.
HDN Furnace F-71030 36.3
No Yes The size of the radiant box is 21.9 ft, which restricts the maximum allowable flame height to 14.6 ft.
The flame height for ULNB is estimated to be 16.3 ft. Additionally, the minimum clearance for the flame
is required to be at least 21.1 ft, but would only be estimated as 5.6 ft. Therefore, ULNB flame length is
too long and does not allow for adequate clearance. Therefore, ULNB are technically infeasible.
HDS Furnace F-64010 19
No Yes The size of the radiant box is 6.4 ft, which restricts the maximum allowable flame height to 4.3 ft. The
flame height for ULNB is estimated to be 4.6 ft. Additionally, the minimum clearance for the flame is
required to be at least 9.7 ft, but would only be estimated as 1.8 ft. Therefore, ULNB flame length is
too long and does not allow for adequate clearance. Therefore, ULNB are technically infeasible.
HDS Furnace F-64011 27.3
No Yes The size of the radiant box is 17.5 ft, which restricts the maximum allowable flame height to 11.7 ft.
The flame height for the ULNB is estimated to be 9.5 ft. Additionally, the minimum clearance for the
flame is required to be 14.5 ft. The estimated clearance is 8 ft. While the flame height is acceptable,
the clearance is inadequate, therefore, ULNB are technically infeasible.
Reformer Furnace F-35001 52.3 Yes Yes
Reformer Furnace F-35002 45 Yes Yes
Reformer Furnace F-35003 31.7 Yes Yes
VGO Furnace F-66100 40 N/A Yes Furnace is equipped with ULNB
VGO Furnace F-66200 66 N/A Yes Furnace is equipped with ULNB
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
5

NOx emissions reduction estimates for the ULNB were calculated using the
emissions factors listed in Section 1.4 of AP-42. SCR emissions reduction
estimates were calculated assuming NOx emissions are reduced by 90%.
Cost Effectiveness
Control cost effectiveness for each emissions unit (as $/ton NOx controlled) is
provided in Table 2 below. More information regarding cost analysis is provided in
Attachment A.
Table 2: Cost Effectiveness of NOx Controls for Boilers, Furnaces, and Process Heaters
Unit Name
Cost per ton of NOx
ULNB SCR
Alky Furnace F-36017 N/A $ 144,177
Boiler #5 $ 34,736 $ 89,974
Boiler #6 $ 42,362 $ 117,084
Coker Furnace F-7001 N/A $ 91,378
Crude Furnace F-21001 $ 123,588
Crude Furnace F-21002
FCC Furnace F-32021 $ 106,436
FCC Furnace F-32023
HDN Furnace F-71010 $ 211,370
HDN Furnace F-71030
HDS Furnace F-64010 $ 309,071
HDS Furnace F-64011
Reformer Furnace F-35001 $ 355,691 $ 90,297
Reformer Furnace F-35002 $ 206,101
Reformer Furnace F-35003 $ 194,134
VGO Furnace F-66100 N/A

$ 195,659
VGO Furnace F-66200
Based on these estimated costs, these options are not cost effective.
Additional Considerations
In addition to the high costs, the use of SCR inherently results in ammonia slip,
which can cause condensable PM emissions to be emitted from each application
of SCR. This is a concern for the surrounding community, which is currently
classified as in serious nonattainment of the 2006 24-hour PM2.5 NAAQS. In
addition, additional solid waste is generated from the periodic replacement of the
catalyst.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
6
3 Emergency Equipment
Chevron operates compression ignition emergency engines for backup service.
These engines fire diesel fuel and provide mechanical power to drive equipment
(e.g., drives generator for electricity generation or drives a pump). These engines
are backup engines, with usage limited to 100 hours per year during non-
emergency scenarios. These engines are used to provide power for critical
equipment in scenarios such as when electric power from the public utilities is
interrupted. These engines are also typically operated weekly or monthly at zero or
low loads for regular maintenance, response readiness testing, to ensure proper
engine operations. All engines are subject to the requirements of 40 CFR 63
Subpart ZZZZ.
Table 3 displays the diesel-fired emergency equipment at the Salt Lake refinery,
design engine ratings, and operational status.
Table 3: Diesel-Fired Emergency Equipment at Salt Lake Refinery
Unit Name Engine Rating (hp) Tier Rating Status
#1 CWT Pump 665 2 Active
2nd North Substation
Generator
750 Pre-NSPS Active
3rd North Generator 895 2 Active
(Old) 3rd North Generator 1490 Pre-NSPS Inactive
Admin Generator 2,200 2 Active
Alky Substation Generator 752 2 Active
Canal Fire Water Pump A 950 2 Active
Canal Fire Water Pump B 950 2 Active
Canal Fire Water Pump C 950 2 Active
Canal Water Fire
Generator
462 3 Active
Collection Box Pump 109 N/A On-site, no longer operational
Crude Substation
Generator
900 Pre-NSPS Active
East Compressor
K13012B
524 4 Active
FCC MCC Generator 750 N/A On-site, no longer operational
HDN Substation
Generator
601 3 Active
(New) North Tank Field
Generator
896 2 Active
Reformer Substation
Generator
616 3 Active
TCLR Generator 197 3 Active
Two Fire Water Backup
Pumps
375 (cont.)/400 (max) N/A On-site, no longer
operational.
Ability to operate one of two
was recently surrendered per
R307-401-12 submittal dated
April 17, 2024.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Unit Name Engine Rating (hp) Tier Rating Status
Two HF Mitigation Pumps 830 N/A On-site, no longer operational
VGO MCC Generator 755 (max) 2 Active
West Compressor
K13012A
524 4 Active
(New) WWTP Generator 895.6 2 Awaiting installation
(Old) WWTP Generator 227 Pre-NSPS To be replaced by New
WWTP Generator
Notes:
CWT = cooling water tower
FCC = fluid catalytic cracking
HDN = hydrodenitrification
HF = hydrofluoric acid
hp = horsepower
MCC = motor control center
NSPS = new source performance standards
TCLR = tank car loading rack
WWTP = wastewater treatment plant
VGO = vacuum gas oil

After reviewing the active engines listed in Table 3, Chevron summarized in Table
4 that several engines and existing controls exceed RACT by meeting best
available control technology (BACT) either through the permitting process (and
UDAQ authorization via issuance of Approval Orders) or Environmental Protection
Agency (EPA) determinations.
Table 4: Historical Authorizations of BACT for Diesel Engines
Unit Name Engine
Rating
(hp)
Tier
Rating
Status Reason
HDN Substation
Generator
601 3 Active DAQE-AN101190097-18 concluded engine
meets BACT and therefore would meet the
standard for RACT for this analysis.
3rd North
Generator
895 2 Active DAQE-AN101190098-20 concluded engine
meets BACT and therefore would meet the
standard for RACT for this analysis.
TCLR Generator 197 3 Active The EPA Clearinghouse stated tier 3
engines meet BACT and therefore would
meet the standard for RACT for this
analysis.
New North Tank
Field Generator
896 2 Active DAQE-AN101190106-22 concluded engine
meets BACT and therefore would meet the
standard for RACT for this analysis.
Alky Substation
Generator
752 2 Active DAQE-AN101190098-20 concluded engine
meets BACT and therefore would meet the
standard for RACT for this analysis. West
Compressor
K13012A
524 4 Active
East Compressor
K13012B
524 4 Active
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Unit Name Engine
Rating
(hp)
Tier
Rating
Status Reason
Canal Fire Water
Pump A
950 2 Active DAQE-AN101190099-20 concluded engine
meets BACT and therefore would meet the
standard for RACT for this analysis. Canal Fire Water
Pump B
950 2 Active
Canal Fire Water
Pump C
950 2 Active
Canal Water Fire
Generator
462 3 Active
Reformer
Substation
Generator
616 3 Active DAQE-AN101190101-21 concluded engine
meets BACT and therefore would meet the
standard for RACT for this analysis.

Cost Effectiveness
Chevron evaluated retrofitting remaining active engines with selective SCR for NOx
control and replacing each engine with a new Tier 4 rated engine. As identified in
Section 2, SCR requires elevated operating temperature to achieve optimal
emissions reductions. While Chevron believes that limited-use engines may have
challenges achieving the required exhaust temperature during short periods of
operation, Chevron has conservatively prepared cost estimates for installing SCR
control systems on each engine.
Costs for add-on SCR were calculated using the estimate of $98 per horsepower
from the U.S. EPA’s “Alternative Control Techniques Document: Stationary Diesel
Engines” report, dated March 5, 2010. Replacement costs with new Tier 4 engines
were provided from a vendor.
Table 5 includes a summary of the estimated control costs for NOx. Due to these
engines having low annual operating hours, the actual costs listed in Table 5 are
expected to increase due to additional draining and replacement of expired urea.
More information regarding cost analysis is provided in Appendix B.
Table 5: Cost Analysis for Add-on Installation of SCR on Diesel Engines and Engine
Replacement
Unit Name
Cost per ton of NOx ($/ton)
SCR Retrofit1 Tier 4 Rated Replacement2
2nd North Substation Generator2 $ 95,928 $ 5,499,545
#1 CWT Pump2,3,4 $ 1,106,183 $ 6,941,208
VGO MCC Generator $ 843,813 $ 12,794,235
Crude Substation Generator2 $ 302,136 $ 5,250,701
Admin Generator $ 1,053,375 $ 4,581,965
Notes:
1) Cost doesn’t include the cost of reagent tank and installation.
2) Cost doesn’t include the removal of the old unit.
3) Equipment is located inside a building; costs do not include the cost of any required building
modifications.
4) Replacement cost is to replace the engine and utilize the existing pump.
Based on these estimated costs, these options are not cost effective.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
9
Additional Considerations
Additionally, the Chevron Refinery has one natural gas fired, 49.5 hp generator.
“While retrofitting this engine appears to be technically feasible, a number of
considerations make retrofitting this engine with SCR technically infeasible.SCR
systems require an exhaust temperature between 500°F and 1000°F. Achieving
those temperatures is expected to be difficult for this engine, which is smaller than
any of the diesel-fired engines/generators, and is only operated for short periods of
time for maintenance and testing. To resolve this problem, the engine would need
to be operated with higher loads, and in many cases, for longer periods of time,
generating additional emissions. Without greater load on the engine to get the
catalyst up to operational temperature, requisite exhaust temperature would not be
achieved and limited NOx reduction would occur. In addition, urea handling and
maintenance must be considered. Crystallization in the urea injection lines can
cause damage to the SCR system and/or to the engine itself, and this is more
prominent in emergency standby engines due to their periodic and reduced hours
of usage. Urea also has a shelf life of approximately two years, requiring additional
purchase costs, management practices, and maintenance. For smaller engines
such as this, reduced usage rates of urea may make these issues more probable to
occur. Therefore, retrofitting this engine with SCR is technically infeasible and cost
ineffective.

2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
10
4 Storage Tanks
4.1 Fixed Roof Storage Tanks (VFRTs)
VFRTs are configured with a floor, conical roof, column to support the roof,
miscellaneous fittings to allow for supply and removal of product from the tank, and
a vent at the top of the roof to allow for vapor flow (e.g., gooseneck vent,
pressure/vacuum vent). Emissions from fixed roof tanks occur due to working and
standing losses. Standing losses occur through tank temperature fluctuations,
while working losses occur primarily from liquid level changes and displacement of
vapors that evolve from the stored liquid.
The VFRTs at the refinery are subject to the following regulations and
requirements:
 Utah Rule R307-327, Ozone Nonattainment and Maintenance Areas:
Petroleum Liquid Storage;
 40 CFR Part 60 Subpart Kb, Standards of Performance for Volatile Organic
Liquid Storage Vessel for Which Construction, Reconstruction, or
Modification Commenced After July 23, 1984;
 40 CFR Part 63 Subpart CC, National Standards for Hazardous Air
Pollutants from Petroleum Refineries;
 40 CFR Part 63 Subpart WW, National Emission Standards for Storage
Vessels (Tanks)-Control Level 2;
 For tanks not subject to 40 CFR 63 Subpart CC: 40 CFR Part 63 Subpart
EEEE, National Standards for Hazardous Air Pollutants: Organic Liquids
Distribution.
In addition, EPA proposed amendments to update and strengthen the new source
performance standards (NSPS) for volatile organic liquid storage vessels (including
petroleum liquid storage vessels) at 40 CFR 60 Subpart Kc. The proposed rule
was published in the Federal Register on October 4, 2023; if finalized, the rule will
regulate any tanks that store volatile organic liquid in place of 40 CFR 60 Subpart
Kb for which construction, reconstruction, or modification occurs after October 4,
2023.
The following options are available control technologies for FRT:
 CVS to thermal oxidizer
 CVS to carbon adsorber canisters
 Retrofit tank to internal floating roof tank (IFRT)
 Vapor balancing
 Comply with existing regulations
Technical Feasibility
Chevron evaluated each for technical feasibility and other considerations. A
summary of findings is provided below in Table 6.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Table 6: Technical Feasibility and Other Considerations of Controls for VFRTs
Technology Technical feasibility and other consideration
Closed Vent
System (CVS) to
Thermal Oxidizer
Technically feasible with restrictions.
The shell of any tank used for a closed vent system must be rated
for operation at the requisite elevated pressure. Further detailed
engineering evaluations are required to determine if significant
modifications to the tank structure, tank shell courses, and
foundation would be required to accommodate such systems.
Any combustion devices must be sufficiently far away from
storage tanks to avoid safety issues in event of catastrophic loss
of liquid containment by storage vessel. This requires
identification of a remote location away from storage tanks.
The refinery’s tanks are located in containment areas with
underground piping and other equipment. During construction of
closed vent systems, such equipment must be avoided.
Infrastructure for requisite air, nitrogen, natural gas, and electricity
systems do not adequately exist today to support installation of a
closed vent system to route the vapors to a control device. In
addition, a system to hold and support the control device
(concrete pad, support structures) would be required.
Details of required supporting equipment are provided in the
detailed cost analyses of Appendix C:.
Implementation of these controls would result in additional
combustion emissions from combustion of tank vapors and
supplemental fuel.
Closed Vent
System (CVS) to
Carbon Adsorber
Canisters
Technically feasible with limitations.
The shell of any tank used for a closed vent system must be rated
for operation at the requisite elevated pressure. Further detailed
engineering evaluations are required to determine if significant
modifications to the tank structure, tank shell courses, and
foundation would be required.
The refinery’s tanks are located in containment areas with
underground piping and other equipment. During construction of
closed vent systems, such equipment must be avoided.
Infrastructure for requisite air, nitrogen, and electricity systems do
not adequately exist today to support installation of a closed vent
system to route the vapors to a control device. In addition, a
system to hold and support the control device (concrete pad,
support structures) would be required.
Details of required supporting equipment are provided in the
detailed cost analyses of Appendix C:.
Chevron expects that implementation of carbon adsorber controls
on storage tanks would result in additional hazardous waste
generated roughly equal to five times the mass of annual
emissions controlled. For example, if carbon adsorbers support
reduction of 2000 lb VOC per year (1 tpy VOC) at one tank,
approximately 10,000 lb of hazardous waste from spent carbon
would be generated annually as a result of using carbon to control
emissions from that single storage tank. Several carbon adsorber
canister vendors offer regeneration services where they
regenerate spent carbon and offer it for reuse. Chevron has
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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Technology Technical feasibility and other consideration
experienced significant delays over a year obtaining regenerated
carbon adsorber canisters for reuse.
Retrofit tank to
internal floating
roof tank (IFRT)
Technically feasible for storage tanks with diameter greater than
approximately 16 feet. For tanks smaller than 16 feet, the
available surface area of liquid does not offer sufficient buoyancy
to support a floating roof (i.e., the floating roof would sink).
Further evaluation of tank roundness and shell verticality is
required for each tank; this ensures the tank can accept an
internal floating roof and any seal configuration without gaps or
contact between the seal and/or floating roof with the shell.
Installation of an IFRT within an existing VFRT results in lost
product storage capability. Presence of roof-support legs reduces
the amount of storage capacity on a given tank generally by a
minimum of three to four feet of storage capacity at the bottom of
the tank. Maintaining a liquid level below this point causes the
vacuum breakers to open and causes emissions to the
atmosphere (and would cause regulatory noncompliance).
Similarly, installation of rim seal equipment along the perimeter of
a floating roof results in a similar loss of storage capacity at the
top of the shell of the tank, because the seal equipment cannot go
above the shell of the tank or contact the interface with the cone
roof. Operation in excess of this maximum allowable limit may
cause damage to the floating roof and/or sinkage of the floating
roof due to product accumulation on the roof.
This may not be technically feasible for any tanks at the facility
due to impacts on refinery operations and loss of storage
capacity. However, Chevron assumes for this analysis that this
technology is technically feasible.
Vapor balancing Not technically feasible. Chevron operates many tanks and stores
many different products at its refinery. The tanks are concurrently
utilized by many different processing plants and material blending
operations at the facility. Vapor balancing would not offer
emissions control during concurrent material movements (e.g.,
adding/or removing material concurrently in multiple connected
tanks). Due to a broad variety of materials stored at the refinery,
risks would be introduced by vapor balancing for material
contamination, failure of products to meet required specification,
risks of material incompatibility (e.g., low sulfur and high sulfur) or
flashing (transfer of hot vapors from one tank into tank at ambient
temperature).
Comply with
Existing
Regulations
Technically feasible.

For any add-on control beyond the existing configuration, tank-specific detailed
engineering evaluations are required to prepare an adequate process design that
meets safety, design, and facility siting requirements. Many projects that affect
storage tanks often require temporary backup capacity of the material being
removed from the tank. Such service changes are beyond the scope of this
evaluation and additional feasibility review is required.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
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The remaining potentially technically feasible technologies are ranked by
environmental benefit below in Table 7:
Table 7: Ranking Control Efficiency of Controls for VFRTs
Technology Control efficiency
Closed Vent System (CVS) to
Thermal Oxidizer
98%, per proposed 40 CFR 60 Subpart Kc
Closed Vent System (CVS) to
Carbon Adsorber Canisters
98%, per proposed 40 CFR 60 Subpart Kc
Retrofit tank to internal floating
roof tank (IFRT)
98%, determined by using TanksESP emissions
modeling software. Compared estimated emissions
at Tanks 30080 and 60114 configured as IFRTs
compared to existing VFRT configuration.
Comply with Existing Regulations Varies by tank
Cost Effectiveness
Detailed cost evaluations on tank-specific basis are provided in Appendix C to this
submittal. With the exception of Tank 30043 (i.e., installing IFRT or installing CVS
to TO), retrofitting existing VFRTs with thermal oxidation, carbon canister
adsorbers, or an internal floating roof is not economically feasible. Refer to
Section 4.3 for a specific review of Tank 30043.
4.2 External Floating Roof Storage Tanks (EFRTs)
EFRTs are configured with a shell, floor, roof that floats on the surface of the
stored liquid, and miscellaneous fittings to allow for supply and removal of product
from the tank. Emissions from fixed roof tanks occur due to working and standing
losses. Standing losses occur through evaporative losses from rim seals and tank
fittings, while working losses occur primarily from liquid level changes and
displacement of vapors that evolve from the stored liquid.
The FRTs at the refinery are subject to the following regulations and requirements:
 Utah Rule R307-327, Ozone Nonattainment and Maintenance Areas:
Petroleum Liquid Storage;
 40 CFR Part 60 Subpart Kb, Standards of Performance for Volatile Organic
Liquid Storage Vessel for Which Construction, Reconstruction, or
Modification Commenced After July 23, 1984;
 40 CFR Part 63 Subpart CC, National Standards for Hazardous Air
Pollutants from Petroleum Refineries;
 40 CFR Part 63 Subpart WW, National Emission Standards for Storage
Vessels (Tanks)-Control Level 2;
 For tanks not subject to 40 CFR 63 Subpart CC: 40 CFR Part 63 Subpart
EEEE, National Standards for Hazardous Air Pollutants: Organic Liquids
Distribution.
In addition, EPA proposed amendments to update and strengthen the new source
performance standards (NSPS) for volatile organic liquid storage vessels (including
petroleum liquid storage vessels) in a new section of 40 CFR 60 at 40 CFR 60
Subpart Kc. The rule was published in the Federal Register on October 4, 2023; if
finalized, the rule will regulate any tanks that store volatile organic liquid in place of
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
14
40 CFR 60 Subpart Kb for which construction, reconstruction, or modification
occurs after October 4, 2023.
The following options are available control technologies for EFRT:
 Installation of geodesic dome
 CVS to thermal oxidizer
 CVS to carbon adsorber canisters
 Comply with existing regulations
Technical Feasibility
Chevron evaluated each for technical feasibility. A summary of findings is provided
below in Table 8, and additional considerations are provided as part of the detailed
cost analysis notes in Appendix C: to this submittal.
Table 8: Technical Feasibility and Other Considerations of Controls for VFRTs
Technology Technical feasibility
Retrofit tank with
geodesic dome
This measure is technically infeasible due to specific local
conditions relating to Chevron’s EFRs. Much of the refinery’s tank
field was built decades ago under now outdated earthquake
guidelines. Applying modern standards (i.e., accommodating an
approximately 7.5 seismic event) has required derating a number
of tanks in the tank farm (i.e., max levels are set artificially low to
handle the potential seismic loading). While a detailed
engineering study would be required for each tank to determine
the precise impacts, on many tanks, the foundations and shells
would not support the additional weight of the dome plus the
required snow load allowance (30 pounds per square foot). Other
tanks would be significantly derated. This would require
construction of additional tanks to restore lost storage capacity,
resulting in additional air emissions and permitting requirements.
In addition, tank domes in winter climates can pose significant
safety issues. This includes additional confined for entry for
required periodic inspections and repairs. Furthermore, due to the
shape of domed tanks, potential exists for sudden snow/ice
shedding around tank during winter with potential damage to
nearby equipment and personnel. It would be technically
infeasible to retrofit the refinery’s existing tanks with domes.
While it is technically infeasible to retrofit, Chevron has
nevertheless prepared cost analyses for doming existing EFRTs,
though further detailed evaluation is required for specific tanks
and to assess whether additional storage capacity is required.
CVS to Thermal
Oxidizer
Technically feasible with restrictions.
The shell of any tank used for a closed vent system must be rated
for operation at the requisite elevated pressure. Further detailed
engineering evaluations are required to determine if significant
modifications to the tank structure, tank shell courses, and
foundation would be required to accommodate such systems.
Any tank with an external floating roof would be required to
undergo retrofit to a fixed cone roof. Operation of a closed vent
system requires a fixed roof to draw a vacuum and remove vapors
from the tank to the thermal oxidizer. In addition, operation of a
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15
Technology Technical feasibility
pressurized vapor space could result in the tilting or sinking of a
floating roof. This includes demolition of the floating roof.
Any combustion devices must be sufficiently far away from
storage tanks to avoid safety issues in event of catastrophic loss
of liquid containment by storage vessel. This requires
identification of a remote location away from storage tanks.
The refinery’s tanks are located in containment areas with
underground piping and other equipment. During construction of
closed vent systems, such equipment must be avoided.
Infrastructure for requisite air, nitrogen, natural gas, and electricity
systems do not adequately exist today to support installation of a
closed vent system to route the vapors to a control device.
Details of required supporting equipment are provided in the
detailed cost analyses of Appendix C:.
CVS to Carbon
Adsorber Canisters
Technically feasible with limitations.
The shell of any tank used for a closed vent system must be rated
for operation at the requisite elevated pressure. Further detailed
engineering evaluations are required to determine if significant
modifications to the tank structure, tank shell courses, and
foundation would be required.
Any EFRT would be required to undergo retrofit to a fixed cone
roof. Operation of a closed vent system requires a fixed roof to
draw a vacuum and remove vapors from the tank to the carbon
canisters. In addition, operation of a pressurized vapor space
could result in the tilting or sinking of a floating roof. This includes
demolition of the floating roof and construction of a fixed cone
roof.
The refinery’s tanks are located in containment areas with
underground piping and other equipment. During construction of
closed vent systems, such equipment must be avoided.
Infrastructure for requisite air, nitrogen, and electricity systems do
not adequately exist today to support installation of a closed vent
system to route the vapors to a control device.
Details of required supporting equipment are provided in the
Chevron expects that implementation of carbon adsorber controls
on storage tanks would result in additional hazardous waste
generated roughly equal to five times the mass of annual
emissions controlled. For example, if carbon adsorbers support
reduction of 2000 lb VOC per year (1 tpy VOC), approximately
10,000 lb of hazardous waste from spent carbon would be
generated annually as a result of using carbon to control
emissions from storage tanks. Several carbon adsorber canister
vendors offer regeneration services where they regenerate spent
carbon and offer it for reuse. Chevron has experienced significant
delays obtaining regenerated carbon adsorber canisters for reuse.
Vapor balancing Not technically feasible. Vapor balancing is not feasible with
EFRTs due to absence of a fixed cone roof. The emissions
benefit from vapor balancing would be outweighed by the loss of
controls associated with removing the EFRT to VFRT.
If EFRTs were converted to IFRTs to support vapor balancing,
uncertainty exists whether operating IFRTs in a vapor balancing
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16
Technology Technical feasibility
configuration would jeopardize safety and integrity of the internal
floating roof or increase risk of sinking the floating roof.
In addition, Chevron operates many tanks and stores many
different products at its refinery. The tanks are concurrently
utilized by many different processing plants and material blending
operations at the facility. Vapor balancing would not offer
emissions control during concurrent material movements (e.g.,
adding/or removing material concurrently in multiple connected
tanks). Due to a broad variety of materials stored at the refinery,
risks would be introduced by vapor balancing for material
contamination, failure of products to meet required specification,
risks of material incompatibility (e.g., low sulfur and high sulfur) or
flashing (transfer of hot vapors from one tank into tank at ambient
temperature).
Comply with
Existing
Regulations
Technically feasible.
For any add-on control beyond the existing configuration, tank-specific detailed
engineering evaluations are required to prepare an adequate process design that
meets safety, design, and facility siting requirements. Many projects that affect
storage tanks often require temporary backup capacity of the material being
removed from the tank and may result in costs associated with reduced refinery
utilization. Such service changes are beyond the scope of this evaluation and
additional feasibility review is required.
The remaining technologies are ranked by environmental benefit below in Table 9:
Table 9: Ranking Control Efficiency of Controls for EFRTs
Technology Control efficiency
Retrofit tank to geodesic dome 82%, determined by using TanksESP emissions
modeling software. Compared estimated emissions
at Tanks 7513 and 80115 configured as DEFRT
compared to existing EFRT configuration.
Closed Vent System (CVS) to
Thermal Oxidizer
60%, per 98% control efficiency required by
proposed 40 CFR 60 Subpart Kc and loss of
assumed 95% control efficiency for external floating
roof.
Closed Vent System (CVS) to
Carbon Adsorber Canisters
60%, per 98% control efficiency required by
proposed 40 CFR 60 Subpart Kc and loss of
assumed 95% control efficiency for external floating
roof.
Comply with Existing Regulations Varies by tank
Cost Effectiveness
Detailed cost evaluations on tank-specific basis are provided in Appendix C: to this
submittal. Retrofitting existing VFRTs with geodesic domes, CVS to thermal
oxidation, or CVS to carbon canister adsorbers is not economically feasible.
Chevron reserves the right to perform additional evaluations related to detailed
engineering, lost storage capacity and replacement storage capacity, and costs
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
17
associated with lost production opportunity for any measures proposed as RACT
by UDAQ.
4.3 Tank 30043: HDN Feed Storage Tank
Based on the RACT analysis in Section 4.1, Chevron has determined that CVS to
TO would be the only economically feasible control for Tank 30043 as long as the
tank is storing Hydrodenitrification Unit (HDN) feedstock.
Tank 30043 is currently the only existing VFRT at the refinery used to store HDN
Feed. For that reason, it is not currently feasible to retrofit this tank as an IFRT for
storage of HDN Feed. Presence of roof-support legs would be expected to reduce
the amount of storage capacity by a minimum of three to four feet of storage
capacity at the bottom of the tank. Maintaining a liquid level below this point would
cause the vacuum breakers to open and causes emissions to the atmosphere (and
noncompliance with state/federal regulations). Similarly, installation of rim seal
equipment along the perimeter of a floating roof results in a similar loss of storage
capacity at the top of the tank, because the seal equipment cannot go above the
shell of the tank or contact the interface with the cone roof.
Chevron has identified an alternative to implementing controls on Tank 30043 that
would result in a similar or greater total reduction in emissions. Specifically,
Chevron has identified that Tank 40073, an existing EFRT, would be suitable for
storing HDN Feed. It currently stores Jet A stock, which has sufficiently low TVP
and HAP content such that existing state and federal requirements do not require
that this material be stored in a floating roof storage tank. This is the only existing
controlled tank (i.e., EFRT) at the refinery that stores a material that can be stored
in a VFRT.
Chevron therefore proposes to switch services of these two tanks such that in the
future, Tank 40073 would be used to store HDN Feed and Tank 30043 would be
used to store Jet A stock. Tank 40073 would then become subject to more
stringent regulatory provisions, including requirements of 40 CFR 63 Subpart CC
as applicable for a group 1 storage vessel and potential applicability of 40 CFR 60
Subpart Kc. Tank 30043 would not require controls because the tank TVP and
HAP content when storing jet fuel would be less than the thresholds requiring
emissions control applicability thresholds in 40 CFR 60 Subpart Kb, proposed rule
40 CFR 60 Subpart Kc, 40 CFR 63 Subpart CC, and R307-327. This change
would result in an overall emissions reduction of more than 75 tpy of VOC.
Chevron currently anticipates that the project can be completed by May 2026.
Chevron proposes the following requirements as RACT for Tank 40073 (RACT for
Tank 30043 would be no additional control):
 Upon initial use of Tank 40073 to store HDN Feed, Tank 40073 shall meet
the requirements of R307-327 and 40 CFR 63 Subpart CC as applicable for
a Group 1 storage vessel. If any modifications to Tank 40073 are
necessary to comply with 40 CFR 63 Subpart CC and if they trigger
modification of Tank 40073, after the effective date of 40 CFR 60 Subpart
Kc, Tank 40073 shall be considered an affected facility subject to 40 CFR
60 Subpart Kc.
To support compliance with these requirements, the following conditions are
proposed to apply for Tank 40073 following completion of the project:
 Upon the change in usage of Tank 40073 to store HDN Feed, Chevron
shall comply with the applicable monitoring, recordkeeping, and reporting
requirements of 40 CFR 63 Subpart CC for a Group 1 storage vessel. If
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May 2024 Addendum
18
any modifications to Tank 40073 are necessary to comply with 40 CFR 63
Subpart CC and if they trigger modification of Tank 40073, upon finalization
of 40 CFR 60 Subpart Kc or after the effective date of that rule, whichever
is later, the applicable monitoring, recordkeeping, and reporting
requirements of 40 CFR 60 Subpart Kc shall apply to Tank 40073.
Based on a review of RY2017 operating data and swapping the services of Tanks
30043 and 40073 in that evaluation, Table 10 shows reductions of actual
emissions that would be expected to occur (based on RY2017 data):

Table 10: Evaluated Emissions Reductions for Service Swaps between Tanks 30043 and Tank
40073
Description Tank 30043 Tank 40073 Total
Pre-Project Service HDN Feed Jet A ---
Pre-Project RY2017 Emissions (tpy) 80.11 0.06 80.18
Post-Project Service Jet A HDN Feed ---
Post-Project Emissions (RY2017 w/
Service Swaps, tpy) 1.00 3.98 4.97
Emissions Change (tpy): -79.12 3.91 -75.21
Emissions Change (%): --- --- -94%

2023 Ozone Reasonable Available Control Technology Analysis
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Appendix A: Boiler, Furnaces, Process Heaters Cost Analysis
Table A-1: ULNB Retrofit Cost Analysis

Boiler #5 Boiler #6
Crude
Furnace F-
21001
Crude
Furnace F-
21002
Reformer
Furnace F-
35001
Reformer
Furnace F-
35002
Reformer
Furnace F-
35003
Purchased Equipment (PE)1 $ 268,800 $ 268,800 $ 316,800 $ 316,800 $ 1,240,320 $ 664,320 $ 618,204
Freight 10% % of PE2 $ 26,880 $ 26,880 $ 31,680 $ 31,680 $ 124,032 $ 66,432 $ 61,824
Sales Tax 6% % of PE2 $ 16,128 $ 16,128 $ 19,008 $ 19,008 $ 74,419 $ 39,859 $ 37,094
Purchased Equipment Cost (PEC) $ 311,808 $ 311,808 $ 367,488 $ 367,488 $ 1,438,771 $ 770,611 $ 717,158
Direct Installation Costs (DC)
Foundations 10% % of PEC2 $ 40,535 $ 40,535 $ 47,773 $ 47,773 $ 187,040 $ 100,179 $ 93,231
Structure, ductwork, stack 15% % of PEC2 $ 60,803 $ 60,803 $ 71,660 $ 71,660 $ 280,560 $ 150,269 $ 139,846
Instrumentation 8% % of PEC2 $ 30,401 $ 30,401 $ 35,830 $ 35,830 $ 140,280 $ 75,135 $ 69,923
Electrical 10% % of PEC2 $ 40,535 $ 40,535 $ 47,773 $ 47,773 $ 187,040 $ 100,170 $ 93,231
Piping 5% % of PEC2 $ 20,268 $ 20,268 $ 23,887 $ 23,887 $ 93,520 $ 50.090 $ 46,615
Insulation 5% % of PEC2 $ 20,268 $ 20,268 $ 23,887 $ 23,887 $ 93,520 $ 50.090 $ 46,615
Painting 5% % of PEC2 $ 20,268 $ 20,268 $ 23,887 $ 23,887 $ 93,520 $ 50.090 $ 46,615
Total Direct Installation Costs $ 233,076 $ 233,076 $ 274,697 $ 274,697 $ 1,075,481 $ 576,032 $ 536,076
Total Direct Cost (DC) $ 544,884 $ 544,884 $ 642,185 $ 642,185 $ 2,514,253 $ 1,346,643 $ 1,253,234
Indirect Cost
Engineering and project
management
25% % of PEC2 $ 101,338 $ 101,338 $ 119,434 $ 119,434 $ 467,601 $ 250,449 $ 233,076
Construction and field
expenses
20% % of PEC2 $ 81,070 $ 81,070 $ 95,547 $ 95,547 $ 374,081 $ 200,359 $ 186,461
Contractor Fees 15% % of PEC2 $ 60,803 $ 60,803 $ 71,660 $ 71,660 $ 280,560 $ 150,269 $ 139,846
Start-up 10% % of PEC2 $ 40,535 $ 40,535 $ 47,773 $ 47,773 $ 187,040 $ 100,179 $ 93,231
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
20

Boiler #5 Boiler #6
Crude
Furnace F-
21001
Crude
Furnace F-
21002
Reformer
Furnace F-
35001
Reformer
Furnace F-
35002
Reformer
Furnace F-
35003
Performance test 5% % of PEC2 $ 20,268 $ 20,268 $ 23,887 $ 23,887 $ 93,520 $ 50,090 $ 46,615
Contingencies 10% % of DC $ 40,535 $ 40,535 $ 47,773 $ 47,773 $ 187,040 $ 100,179 $ 93,231
Indirect Cost $ 344,548 $ 344,548 $ 406,074 $ 406,074 $ 1,589,842 $ 851,525 $ 792,460
Total Lost Production Opportunity
(LPO)3
- - $ 7,150,000 $ 7,150,000 $ 3,400,000 $ 2,150,000 $ 2,050,000
Total Installed Cost (TIC) $ 889,432 $ 889,432 $ 8,198,260 $ 8,198,260 $ 7,504,095 $ 4,348,168 $ 4,095,694
Operating Costs N/A – Assumed to be the same as existing LNB
Capital Recovery Factor4 0.1524 x TIC $ 135,556 $ 135,556 $1,175,179 $ 1,249,478 $1,143,682 $ 662,694 $ 624,215
Total Annual Cost $ 135,556 $ 135,556 $ 1,175,179 $ 1,249,478 $ 1,143,682 $ 662,694 $ 624,326
2017 NOx Emissions (ton/yr) 10.1 8.3 13.8 9.5 8.3 8.3 8.3
ULNB NOx Emissions (ton/yr) 6.2 5.1 8.5 5.7 5.1 5.1 5.1
NOx Reduction (ton/yr)5 3.9 3.2 5.3 3.6 3.2 3.2 3.2
Cost per Ton of NOx Removed $ 34,736 $ 42,362 $ 234,056 $ 351,465 $ 355,691 $ 206,101 $ 194,134
Notes:
1) Obtained from discussions with a potential vendor.
2) Typical industry allowances as a percentage of purchased equipment costs; based on experience, engineering practices.
3) LPO based on refinery unit outages to install the control equipment outside of routine, planned unit maintenance events. The Boilers do not have values for LPO
because the refinery steam demand can be met by running one or the other. The duration of these unplanned events, and the LPO cost, could increase once further
analysis is conducted.
4) Annualized Total Capital Investment is estimated using the capital recovery factor for 10-yr life and 8.5 percent average interest.
5) NOx reduction estimated with ULNB emissions factor of 0.025 lb NOx/MMBtu heat input.

2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
21
Table A-2: SCR Retrofit Cost Analysis
Alky Furnace F-
36017 Boiler #5 Boiler #6
Coker Furnace
F-7001
Crude
Furnaces F-
21001 and
F21002
Purchased Equipment (PE)1
SCR Unit $ 597,760 $ 640,000 $ 597,760 $ 640,000 $ 576,000
Ammonia Skid $ 263,923 $ 236,923 $ 263,923 $ 236,923 $ 236,923
Ammonia Tank $ 162,461 $ 162,461 $ 162,461 $ 162,461 $ 162,461
Ductwork, dampers, stack, fan $ 888,960 $ 410,880 $ 592,640 $ 926,720 $ 542,720
Instrumentation (with CEMS) $ 192,000 $ 192,000 $ 192,000 $ 192,000 $ 192,000
Freight 10% % of PE2 $ 59,776 $ 64,000 $ 59,776 $ 64,000 $ 57,600
Sales Tax 6% % of PE2 $ 35,866 $ 38,400 $ 35,866 $ 38,400 $ 34,560
Purchased Equipment Cost (PEC) $ 2,173,746 $ 1,744,664 $1,877,426 $ 2,260,504 $ 1,802,264
Direct Installation Costs (DC)
Foundations 10% % of PEC2 $ 282,587 $ 226,806 $ 244,065 $ 293,866 $ 234,294
Structure, ductwork, stack 15% % of PEC2 $ 423,880 $ 340,210 $ 366,098 $ 440,798 $ 351,442
Instrumentation (with CEMS) 8% % of PEC2 $ 211,940 $ 170,105 $ 183,049 $ 220,399 $ 175,721
Electrical 10% % of PEC2 $ 282,587 $ 226,806 $ 244,065 $ 293,866 $ 234,294
Piping 5% % of PEC2 $ 141,293 $ 113,403 $ 122,033 $ 146,933 $ 117,147
Insulation, lagging for duck work 5% % of PEC2 $ 141,293 $ 113,403 $ 122,033 $ 146,933 $ 117,147
Painting 5% % of PEC2 $ 141,293 $ 113,403 $ 122,033 $ 146,933 $ 117,147
Total Direct Installation Costs $ 1,624,875 $ 1,304,137 $ 1,403,376 $ 1,689,727 $ 1,347,193
Total Direct Cost (DC) $ 3,798,621 $ 3,048,801 $ 3,280,802 $ 3,950,231 $ 3,149,457
Indirect Cost
Engineering and project
management
25% % of PEC2 $ 706,467 $ 567,016 $ 610,163 $ 734,664 $ 585,736
Construction and field expenses 20% % of PEC2 $ 565,174 $ 453,613 $ 488,131 $ 587,731 $ 468,589
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
22
Alky Furnace F-
36017 Boiler #5 Boiler #6
Coker Furnace
F-7001
Crude
Furnaces F-
21001 and
F21002
Contractor Fees 15% % of PEC2 $ 423,880 $ 340,210 $ 366,098 $ 440,798 $ 351,422
Start-up 10% % of PEC2 $ 282,587 $ 226,806 $ 244,065 $ 293,866 $ 234,294
Performance test 5% % of PEC2 $ 141,293 $ 113,403 $ 122,033 $ 146,933 $ 117,147
Contingencies 10% % of DC $ 282,587 $ 226,806 $ 244,065 $ 293,866 $ 234,294
Total Indirect Cost $ 2,401,989 $ 1,927,854 $ 2,074,556 $ 2,497,857 $ 1,99,502
Lost Production Opportunity (LPO)3 $ 1,750,000 - - $ 2,560,000 $ 11,700,000
Total Installed Cost (TIC) $ 7,950,610 $ 4,976,655 $ 5,355,357 $ 9,008,089 $ 16,840,959
Operating Costs
Catalyst Replacement (5-yr lifetime)
(CR)
$ 5,909 $ 9,356 $ 9,356 $ 7,616 $ 13,411
Disposal 50% % of CR2 $ 2,955 $ 4,678 $ 4,678 $ 3,808 $ 6,705
Ammonia (17/46 x tpy NOx
removed)
$ 455.00 $ 1,556 $ 1,530 $ 1,255 $ 2,774 $ 3,467
Utilities4 0.066% $ 11,239 $ 17,796 $ 17,796 $ 14,486 $ 25,507
Operating labor (0.5 hr / 8 hr shift)
(OP)
$ 25.00 $ 13,688 $ 13,688 $ 13,688 $ 13,688 $ 13,688
Supervisory labor (SL) 15% % of OP2 $ 2,053 $ 2,053 $ 2,053 $ 2,053 $ 2,053
Maintenace Labor (0.5 hr / 8 hr shift)
(ML)
$ 25.00 $ 13,688 $ 13,688 $ 13,688 $ 13,688 $ 13,688
Maintenace materials (MM) 100% % of M2 $ 13,688 $ 13,688 $ 13,688 $ 13,688 $ 13,688
Overhead 40% % of
OP+SL+ML+MM2
$ 17,246 $ 17,246 $ 17,246 $ 17,246 $ 17,246
Taxes, Insurance, and Admin 4% % of TIC2 $ 318,024 $ 199,066 $ 214,214 $ 360,234 $ 673,638
Annual Operating Costs $ 400,045 $ 292,788 $ 307,661 $ 449,370 $ 783,111
Capital Recovery Factor5 0.1057 x TIC $ 933,876 $ 525,888 $ 565,906 $ 1,058,087 $ 1,779,601
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
23
Alky Furnace F-
36017 Boiler #5 Boiler #6
Coker Furnace
F-7001
Crude
Furnaces F-
21001 and
F21002
Total Annual Cost $ 1,333,921 $ 818,676 $ 873,567 $ 1,507,457 $ 2,562,711
2017 NOx Emissions (ton/yr) 10.3 10.1 8.3 18.3 23
SCR NOx Emissions (ton/yr) 1.03 1.01 0.83 1.83 2.3
NOx Reduction (ton/yr)6 9.3 9.1 7.5 16.5 20.7
Cost per Ton of NOx Removed $ 144,177 $ 89,974 $ 117,084 $ 91,378 $ 123,588
Notes:
1) Obtained from discussions with a potential vendor.
2) Typical industry allowances as a percentage of purchased equipment costs; based on experience, engineering practices.
3) LPO based on refinery unit outages to install the control equipment outside of routine, planned unit maintenance events. The Boilers do not have values for LPO
because the refinery steam demand can be met by running one or the other. The duration of these unplanned events, and the LPO cost, could increase once further
analysis is conducted.
4) Utility cost based on assumed average of 0.18 KWH per MMBtu/hr of firing duty.
5) Annualized Total Capital Investment is estimated using the capital recovery factor for 20-yr life and 8.5 percent average interest
6) Estimated NOx reduction that would be achieved by SCR is estimated as 90%.

Table A-2 (cont.): SCR Retrofit Cost Analysis
FCC Furnaces F-
32021 and F-
32023
HDN Furnaces
F-71010 and F-
71030
HDS Furnaces
F-64010 and F-
64011
Reformer
Furnaces F-
35001, F-
35002, and F-
35003
VGO Furnaces
F-66100 and F-
66200
Purchased Equipment (PE)1
SCR Unit $ 597,760 $ 597,760 $ 597,760 $ 597,760 $ 597,760
Ammonia Skid $ 263,923 $ 263,923 $ 263,923 $ 263,923 $ 236,923
Ammonia Tank $ 162,461 $ 162,461 $ 162,461 $ 162,461 $ 162,461
Ductwork, dampers, stack, fan $ 1,185,280 $ 592,640 $ 888,960 $ 1,777,920 $ 888,960
Instrumentation (with CEMS) $ 192,000 $ 192,000 $ 192,000 $ 192,000 $ 192,000
2023 Ozone Reasonable Available Control Technology Analysis
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24
FCC Furnaces F-
32021 and F-
32023
HDN Furnaces
F-71010 and F-
71030
HDS Furnaces
F-64010 and F-
64011
Reformer
Furnaces F-
35001, F-
35002, and F-
35003
VGO Furnaces
F-66100 and F-
66200
Freight 10% % of PE2 $ 59,776 $ 59,776 $ 59,776 $ 59,776 $ 59,776
Sales Tax 6% % of PE2 $ 35,866 $ 35,866 $ 35,866 $ 35,866 $ 35,866
Purchased Equipment Cost (PEC) $ 2,470,066 $ 1,877,426 $ 2,173,746 $ 3,062,706 $ 2,173,746
Direct Installation Costs (DC)
Foundations 10% % of PEC2 $ 321,109 $ 244,065 $ 282,587 $ 398,152 $ 217,375
Structure, ductwork, stack 15% % of PEC2 $ 481,663 $ 366,098 $ 423,880 $ 597,228 $ 326,062
Instrumentation (with CEMS) 8% % of PEC2 $ 240,831 $ 183,049 $ 211,940 $ 298,614 $ 625,531
Electrical 10% % of PEC2 $ 321,109 $ 244,065 $ 282,587 $ 398,152 $ 217,375
Piping 5% % of PEC2 $ 160,554 $ 122,033 $ 141,293 $ 199,076 $ 108,687
Insulation, lagging for duck work 5% % of PEC2 $ 160,554 $ 122,033 $ 141,293 $ 199,076 $ 108,687
Painting 5% % of PEC2 $ 160,554 $ 122,033 $ 141,293 $ 199,076 $ 108,687
Total Direct Installation Costs $ 1,846,374 $ 1,403,376 $ 1,624,875 $ 2,289,373 $ 1,712,404
Total Direct Cost (DC) $ 4,316,440 $ 3,280,802 $ 3,798,621 $ 5,352,079 $ 3,886,150
Indirect Cost
Engineering and project
management
25% % of PEC2 $ 802,771 $ 610,163 $ 706,467 $ 995,379 $ 543,436
Construction and field expenses 20% % of PEC2 $ 642,217 $ 488,131 $ 565,174 $ 796,304 $ 434,749
Contractor Fees 15% % of PEC2 $ 481,663 $ 366,098 $ 423,880 $ 597,228 $ 326,062
Start-up 10% % of PEC2 $ 321,109 $ 244,065 $ 282,587 $ 398,152 $ 217,375
Performance test 5% % of PEC2 $ 160,554 $ 122,033 $ 141,293 $ 199,076 $ 108,687
Contingencies 10% % of DC $ 321,109 $ 244,065 $ 282,587 $ 398,152 $ 388,615
Total Indirect Cost $ 2,729,423 $ 2,074,556 $ 2,401,989 $ 3,384,290 $ 2,018,924
Indirect Cost
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
25
FCC Furnaces F-
32021 and F-
32023
HDN Furnaces
F-71010 and F-
71030
HDS Furnaces
F-64010 and F-
64011
Reformer
Furnaces F-
35001, F-
35002, and F-
35003
VGO Furnaces
F-66100 and F-
66200
Lost Production Opportunity (LPO)3 $ 420,000 - - $ 6,966,667 -
Total Installed Cost (TIC) $ 7,465,863 $ 5,355,357 $ 6,200,610 $ 15,703,035 $ 5,905,074
Operating Costs
Catalyst Replacement (5-yr lifetime)
(CR)
$ 5,275 $ 2,580 $ 2,533 $ 7,058 $ 5,800
Disposal 50% % of CR2 $ 2,637 $ 1,290 $ 1,267 $ 3,529 $ 2,900
Ammonia (17/46 x tpy NOx
removed)
$ 455.00 $ 1,845 $ 726 $ 569 $ 3,782 $ 869
Utilities4 0.066% $ 10,032 $ 4,908 $ 4,818 $ 13,425 $ 11,031
Operating labor (0.5 hr / 8 hr shift)
(OP)
$ 25.00 $ 13,688 $ 13,688 $ 13,688 $ 13,688 $ 13,688
Supervisory labor (SL) 15% % of OP2 $ 2,053 $ 2,053 $ 2,053 $ 2,053 $ 2,053
Maintenace Labor (0.5 hr / 8 hr shift)
(ML)
$ 25.00 $ 13,688 $ 13,688 $ 13,688 $ 13,688 $ 13,688
Maintenace materials (MM) 100% % of M2 $ 13,688 $ 13,688 $ 13,688 $ 13,688 $ 13,688
Overhead 40% % of
OP+SL+ML+MM2
$ 17,246 $ 17,246 $ 17,246 $ 17,246 $ 17,246
Taxes, Insurance, and Admin 4% % of TIC2 $ 298,635 $ 214,214 $ 248,024 $ 628,121 $ 236,203
Annual Operating Costs $ 378,785 $ 284,081 $ 317,574 $ 716,278 $ 317,165
Capital Recovery Factor5 0.1057 x TIC $ 788,925 $ 629,038 $ 728,321 $ 1,659,355 $ 693,608
Total Annual Cost $ 1,167,710 $ 913,119 $ 1,045,895 $ 2,375,633 $ 1,010,772
2017 NOx Emissions (ton/yr) 12.2 4.8 3.8 25 5.7
SCR NOx Emissions (ton/yr) 1.22 0.48 0.38 2.5 0.57
NOx Reduction (ton/yr)6 11 4.3 3.4 22.5 5.2
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
26
FCC Furnaces F-
32021 and F-
32023
HDN Furnaces
F-71010 and F-
71030
HDS Furnaces
F-64010 and F-
64011
Reformer
Furnaces F-
35001, F-
35002, and F-
35003
VGO Furnaces
F-66100 and F-
66200
Cost per Ton of NOx Removed $ 106,436 $ 211,370 $ 309,071 $ 105,626 $ 195,659
Notes:
1) Obtained from discussions with a potential vendor.
2) Typical industry allowances as a percentage of purchased equipment costs; based on experience, engineering practices.
3) LPO based on refinery unit outages to install the control equipment outside of routine, planned unit maintenance events. The duration of these unplanned events, and
the LPO cost, could increase once further analysis is conducted.
4) Utility cost based on assumed average of 0.18 KWH per MMBtu/hr of firing duty.
5) Annualized Total Capital Investment is estimated using the capital recovery factor for 20-yr life and 8.5 percent average interest.
6) Estimated NOx reduction that would be achieved by SCR is estimated as 90%.
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
27
Appendix B: Emergency Equipment Cost Analysis
Table B-1: Engine/Generator SCR Retrofit Cost Analysis
2nd North Generator #1 CWT Pump VGO MCC Generator Crude Unit Generator Admin Bldg Generator
Equipment Cost ($/hp)1 $ 98.00 $ 98.00 $ 98.00 $ 98.00 $ 98.00
Inflation Factor $ 1.60 $ 1.60 $ 1.60 $ 1.60 $ 1.60
Total Capital Cost $ 117,600 $ 104,272 $ 118,384 $ 141,120 $ 344,960
Capital Recovery Factor2 0.120 0.120 0.120 0.120 0.120
Capital Recovery Cost $ 14,161 $ 12,556 $ 14,256 $ 16,994 $ 41,540
Operating Cost1 $ 40.00 $ 40.00 $ 40.00 $ 40.00 $ 40.00
Inflation Factor $ 1.60 $ 1.60 $ 1.60 $ 1.60 $ 1.60
Total Direct Operating Cost $ 48,000 $ 42,560 $ 48,320 $ 57,600 $ 140,800
Total Annual Cost $ 62,161 $ 55,116 $ 62,576 $ 74,594 $ 182,340
2017 NOx Emissions (ton/yr) 0.72 0.055 0.082 0.27 0.19
SCR Emissions (ton/yr)3 0.072 0.0055 0.008 0.027 0.019
NOx Reduction (ton/yr) 0.648 0.050 0.074 0.25 0.17
Cost per Ton of NOx Removed $ 95,928 $ 1,106,183 $ 843,813 $ 302,136 $ 1,053,375
Notes:
1) U.S. EPA Alternative Control Techniques Document: Stationary Diesel Engines, 2005 cost.
2) Annualized Total Capital Investment is estimated using the capital recovery factor for 15-yr life and 8.5 percent average interest.
3) Assumed 90% control efficiency

2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
28
Table B-2: Engine/Generator Replacement Cost Analysis
2nd North Substation
Generator #1 CWT Pump
VGO MCC
Generator
Crude
Substation
Generator
Admin
Generator
Purchased Equipment (PE)1 $ 308,700 $ 112,276 $ 492,884 $ 345,529 $ 1,352,716
Sales Tax 6% % of PE2 $ 18,522 $ 6,737 $ 25,793 $ 20,732 $ 81,163
Purchased Equipment Cost (PEC) $ 327,222 $ 119,013 $ 455,677 $ 366,261 $ 1,433,879
Direct Installation Costs (DC)
Foundations 10% % of PEC2 $ 32,722 $ 11,901 $ 45,568 $ 36,626 $ 143,388
Structure, ductwork, stack 15% % of PEC2 $ 49,083 $ 17,852 $ 68,352 $ 54,939 $ 215,082
Instrumentation 8% % of PEC2 $ 25,542 $ 8,926 $ 34,176 $ 27,470 $ 107,541
Electrical 10% % of PEC2 $ 32,722 $ 11,901 $ 45,568 $ 36,626 $ 143,388
Piping 5% % of PEC2 $ 16,361 $ 5,951 $ 22,784 $ 18,313 $ 71,694
Insulation 5% % of PEC2 $ 16,361 $ 5,951 $ 22,784 $ 18,313 $ 71,694
Total Direct Installation Costs $ 171,792 $ 62,482 $ 239,230 $ 192,287 $ 752,786
Total Direct Cost $ 499,014 $ 181,494 $ 694,907 $ 213,019 $ 2,186,665
Indirect Cost
Engineering and project
management
25% % of PEC2 $ 81,806 $ 29,753 $ 113,919 $ 91,565 $ 358,470
Construction and field expenses 20% % of PEC2 $ 65,444 $ 23,803 $ 91,135 $ 73,252 $ 286,779
Contractor Fees 15% % of PEC2 $ 49,083 $ 17,852 $ 68.352 $ 54,939 $ 215,082
Contingencies 10% % of DC $ 49,901 $ 18,149 $ 69,491 $ 21,302 $ 218,667
Total Indirect Cost $ 246,235 $ 89,557 $ 342,897 $ 241,028 $ 1,078,994
Total Installed Cost (TIC) $ 745,248 $ 271,051 $ 1,037,804 $ 454,077 $ 3,265,659
Operating Costs
Taxes, Insurance, and Admin 4% % of TIC2 $ 29,810 $ 10,842 $ 41,512 $ 18,163 $ 130,626
Annual Operating Costs $ 29,810 $ 10,842 $ 41,512 $ 18,163 $ 130,626
2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
29
2nd North Substation
Generator #1 CWT Pump
VGO MCC
Generator
Crude
Substation
Generator
Admin
Generator
Capital Recovery Factor3 0.106 x TIC $ 78,751 $ 28,642 $ 109,666 $ 47,983 $ 13,803
Total Annual Cost $ 108,561 $ 39,484 $ 151,178 $ 66,146 $ 144,430
2017 NOx Emissions (ton/yr) 0.72 0.055 0.082 0.274 0.19
NOx Reduction (ton/yr)4 0.02 0.0055 0.012 0.013 0.03
Cost per Ton of NOx Removed $ 5,499,545 $ 6,941,208 $ 12,794,235 $ 5,250,701 $ 4,581,965
Notes:
1) Obtained from discussions with a potential vendor.
2) Typical industry allowances as a percentage of purchased equipment costs; based on experience, engineering practices.
3) Annualized Total Capital Investment is estimated using the capital recovery factor for 20-yr life and 8.5 percent average interest.
4) Calculate using tier 4 emissions standards and 2017 operating hours

2023 Ozone Reasonable Available Control Technology Analysis
May 2024 Addendum
30
Appendix C: Storage Tank Cost Analysis

Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Floating Roofs in VFRTs
Tank Type Dia (ft) Throughpu
t (1000-gal)
RY2017
Total
Emissions
(tpy)
Max
Monthly
Avg.
TVP
(psia)
Max
Monthly
Avg. Bulk
Liquid
Temp (°F)
Initial Cleaning/
Degassing/
Sludge
Removal Costs
Initial Floating
Roof Installation
Costs
Cooling
System
Indirect
Costs
Cooling
System
Purchased
Equipment
Capital Costs
Additional
Retrofit
Costs
Initial Air
Permitting
Total Capital
Investment
($)
Annualized
Capital Costs
($/yr)
Lifetime
Cleaning/
Degassing/
Sludge
Removal
Costs (2024$)
Annualized
Maintenance
and Cleaning
Costs ($/yr,
2024 dollars)
Annual IFR
Maintenance
Cost
Annual Property
Taxes,
Insurance,
Admin Charges
($/yr)
Total
Operating,
Maintenance,
Indirect
Costs ($/yr)
Annual
VOC
Reduction
(tpy)
Cost
Effectiveness
($/ton)
Notes: 1 1 1 1 234456 9 278 11 12
537 FRT (no floating roof) 13 40 0.17 4.931 91 $120,000 762,141$ -$ -$ $169,950 1,500$ 1,053,591$ 102,948$ 360,000$ 14,400$ 52,680$ 42,144$ 109,223$ 0.17 1,258,966$
5083 FRT (no floating roof) 34 5,192 0.07 0.044 282 $40,000 750,700$ 640,000$ 800,000$ $169,950 1,500$ 2,402,150$ 234,718$ 120,000$ 4,800$ 120,107$ 96,086$ 220,993$ 0.07 6,419,379$
5084 FRT (no floating roof) 34 5,389 0.07 0.044 273 $40,000 750,700$ 640,000$ 800,000$ $169,950 1,500$ 2,402,150$ 234,718$ 120,000$ 4,800$ 120,107$ 96,086$ 220,993$ 0.07 6,544,479$
10085 FRT (no floating roof) 48 1,142 0.10 0.010 88 $40,000 771,355$ -$ -$ $169,950 1,500$ 982,805$ 96,032$ 120,000$ 4,800$ 49,140$ 39,312$ 93,252$ 0.10 1,950,394$
10086 FRT (no floating roof) 48 855 0.02 0.004 292 $40,000 771,355$ 640,000$ 800,000$ $169,950 1,500$ 2,422,805$ 236,736$ 120,000$ 4,800$ 121,140$ 96,912$ 222,852$ 0.02 19,443,759$
15088 FRT (no floating roof) 58 4,542 1.26 0.046 301 $40,000 799,961$ 640,000$ 800,000$ $169,950 1,500$ 2,451,411$ 239,531$ 120,000$ 4,800$ 122,571$ 98,056$ 225,427$ 1.24 376,370$
15090 FRT (no floating roof) 58 4,620 1.09 0.046 254 $40,000 799,961$ 640,000$ 800,000$ $169,950 1,500$ 2,451,411$ 239,531$ 120,000$ 4,800$ 122,571$ 98,056$ 225,427$ 1.07 434,290$
15098 FRT (no floating roof) 58 955 0.04 0.004 264 $40,000 799,961$ 640,000$ 800,000$ $169,950 1,500$ 2,451,411$ 239,531$ 120,000$ 4,800$ 122,571$ 98,056$ 225,427$ 0.04 11,070,531$
15099 FRT (no floating roof) 58 1,665 0.10 0.009 85 $40,000 799,961$ -$ -$ $169,950 1,500$ 1,011,411$ 98,827$ 120,000$ 4,800$ 50,571$ 40,456$ 95,827$ 0.10 1,908,727$
20030 FRT (no floating roof) 67 26,949 0.79 0.026 101 $15,000 835,576$ -$ -$ $169,950 1,500$ 1,022,026$ 99,864$ 45,000$ 1,800$ 51,101$ 40,881$ 93,782$ 0.78 248,847$
20031 FRT (no floating roof) 67 33,141 0.82 0.025 96 $15,000 835,576$ -$ -$ $169,950 1,500$ 1,022,026$ 99,864$ 45,000$ 1,800$ 51,101$ 40,881$ 93,782$ 0.81 239,716$
20032 FRT (no floating roof) 67 32,116 0.80 0.025 97 $15,000 835,576$ -$ -$ $169,950 1,500$ 1,022,026$ 99,864$ 45,000$ 1,800$ 51,101$ 40,881$ 93,782$ 0.78 248,102$
20033 FRT (no floating roof) 67 34,014 0.82 0.025 97 $15,000 835,576$ -$ -$ $169,950 1,500$ 1,022,026$ 99,864$ 45,000$ 1,800$ 51,101$ 40,881$ 93,782$ 0.80 240,654$
20040 FRT (no floating roof) 67 6,735 0.70 0.030 94 $15,000 835,576$ -$ -$ $169,950 1,500$ 1,022,026$ 99,864$ 45,000$ 1,800$ 51,101$ 40,881$ 93,782$ 0.69 280,535$
30041 FRT (no floating roof) 82 22,997 1.71 0.030 88 $15,000 915,714$ -$ -$ $169,950 1,500$ 1,102,164$ 107,694$ 45,000$ 1,800$ 55,108$ 44,087$ 100,995$ 1.68 124,346$
30042 FRT (no floating roof) 82 22,280 1.86 0.030 91 $15,000 915,714$ -$ -$ $169,950 1,500$ 1,102,164$ 107,694$ 45,000$ 1,800$ 55,108$ 44,087$ 100,995$ 1.82 114,484$
30043 FRT (no floating roof) 82 6,742 80.11 4.453 96 $40,000 915,714$ -$ -$ $169,950 1,500$ 1,127,164$ 110,137$ 120,000$ 4,800$ 56,358$ 45,087$ 106,245$ 78.51 2,756$
30069 FRT (no floating roof) 82 9,339 1.80 0.088 118 $40,000 915,714$ -$ -$ $169,950 1,500$ 1,127,164$ 110,137$ 120,000$ 4,800$ 56,358$ 45,087$ 106,245$ 1.77 122,460$
30074 FRT (no floating roof) 82 32,496 2.35 0.030 68 $15,000 915,714$ -$ -$ $169,950 1,500$ 1,102,164$ 107,694$ 45,000$ 1,800$ 55,108$ 44,087$ 100,995$ 2.31 90,531$
30080 FRT (no floating roof) 82 2,347 1.86 0.046 282 $40,000 915,714$ 640,000$ 800,000$ $169,950 1,500$ 2,567,164$ 250,842$ 120,000$ 4,800$ 128,358$ 102,687$ 235,845$ 1.82 267,378$
30081 FRT (no floating roof) 82 6,433 1.10 0.046 286 $40,000 915,714$ 640,000$ 800,000$ $169,950 1,500$ 2,567,164$ 250,842$ 120,000$ 4,800$ 128,358$ 102,687$ 235,845$ 1.08 452,023$
30082 FRT (no floating roof) 82 6,343 1.42 0.046 292 $40,000 915,714$ 640,000$ 800,000$ $169,950 1,500$ 2,567,164$ 250,842$ 120,000$ 4,800$ 128,358$ 102,687$ 235,845$ 1.39 350,383$
40050 FRT (no floating roof) 95 9,299 0.05 0.003 267 $40,000 1,006,177$ 640,000$ 800,000$ $169,950 1,500$ 2,657,627$ 259,681$ 120,000$ 4,800$ 132,881$ 106,305$ 243,986$ 0.04 11,275,952$
40051 FRT (no floating roof) 95 5,693 0.03 0.004 286 $40,000 1,006,177$ 640,000$ 800,000$ $169,950 1,500$ 2,657,627$ 259,681$ 120,000$ 4,800$ 132,881$ 106,305$ 243,986$ 0.03 16,155,042$
40052 FRT (no floating roof) 95 11,193 0.05 0.004 286 $40,000 1,006,177$ 640,000$ 800,000$ $169,950 1,500$ 2,657,627$ 259,681$ 120,000$ 4,800$ 132,881$ 106,305$ 243,986$ 0.05 10,769,298$
40070 FRT (no floating roof) 95 44,435 3.00 0.088 89 $40,000 1,006,177$ -$ -$ $169,950 1,500$ 1,217,627$ 118,976$ 120,000$ 4,800$ 60,881$ 48,705$ 114,386$ 2.94 79,489$
40071 FRT (no floating roof) 95 10,390 3.29 0.044 312 $40,000 1,006,177$ 640,000$ 800,000$ $169,950 1,500$ 2,657,627$ 259,681$ 120,000$ 4,800$ 132,881$ 106,305$ 243,986$ 3.23 156,099$
40072 FRT (no floating roof) 95 7,711 2.50 0.046 313 $40,000 1,006,177$ 640,000$ 800,000$ $169,950 1,500$ 2,657,627$ 259,681$ 120,000$ 4,800$ 132,881$ 106,305$ 243,986$ 2.45 205,637$
40112 FRT (no floating roof) 97 11,035 2.38 0.088 119 $40,000 1,021,826$ -$ -$ $169,950 1,500$ 1,233,276$ 120,505$ 120,000$ 4,800$ 61,664$ 49,331$ 115,795$ 2.33 101,204$
50113 FRT (no floating roof) 105 49,125 3.32 0.030 90 $15,000 1,089,039$ -$ -$ $169,950 1,500$ 1,275,489$ 124,630$ 45,000$ 1,800$ 63,774$ 51,020$ 116,594$ 3.25 74,172$
60114 FRT (no floating roof) 120 69,325 4.59 0.030 89 $15,000 1,234,977$ -$ -$ $169,950 1,500$ 1,421,427$ 138,890$ 45,000$ 1,800$ 71,071$ 56,857$ 129,728$ 4.50 59,661$
60118 FRT (no floating roof) 120 106,787 4.94 0.030 90 $15,000 1,234,977$ -$ -$ $169,950 1,500$ 1,421,427$ 138,890$ 45,000$ 1,800$ 71,071$ 56,857$ 129,728$ 4.84 55,505$
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Floating Roofs in VFRTs
Technical Notes to Support Cost Analysis
Notes:
1
2 Initial cleaning and degassing cost required for project implementation
Clean &
Degas
(EFRT)
Sludge
Removal/
Clean (VFRT)Degas Only (EFRT)
Blendstock/Product $50,000 $15,000 $40,000 Estimated based on refinery-specific past events.
Intermediate, Caustic,
WW $70,000 $40,000 $40,000 Estimated based on refinery-specific past events.
Crude Oil, Slop Oil,
COSC, BWON Tanks $150,000 $120,000 $40,000 Estimated based on refinery-specific past events.
3 Cost for retrofitting a VFRT with an IFRT based on Marathon 2023 Moderate Ozone RACT submittal.
2023 2024
Tank Type Diameter (ft)
Capital Conv.
Cost ($)
Capital
Conv. Cost
($)
T141 VFRT 64 805,000 829,150
T142 VFRT 64 805,000 829,150
T157 VFRT 74 843,000 868,290
T158 VFRT 74 843,000 868,290
T204 VFRT 114.5 1,146,000 1,180,380
T206 VFRT 136 1,381,000 1,422,430
T212 VFRT 117 1,159,000 1,193,770
T213 VFRT 117 1,159,000 1,193,770
T291 VFRT 60 773,000 796,190
T322 VFRT 95 980,000 1,009,400
T323 VFRT 95 980,000 1,009,400
411 VFRT 120 1,208,000 1,244,240
Annual operating data based on RY2017 Air Emissions Inventory (AEI) submitted in SLEIS. Data for Tank 60118 based on
RY2023 AEI because tank construction began operating in 2022 and 2023 was the first full year of operations.
From Marathon Moderate Ozone RACT, Page 120 of 121. Diameters from Pages 112and 116 of 121. All costs assumed as 2023
dollars, adjusted to 2024 dollars (+3%).
For ongoing compliance inspections, assume that cleaning and sludge removal are required every ten years for out of service
seal inspections and/or API inspections.
y = 57.719x2 ‐3257.6x + 794735
R² = 0.9989
$600,000
$800,000
$1,000,000
$1,200,000
$1,400,000
$1,600,000
20 40 60 80 100 120 140
In
i
t
i
a
l
 Co
s
t
 (2
0
2
4
 Do
l
l
a
r
s
,
 $)
Tank  Diameter (ft)
Retrofit Cost. vs. Diameter
(adapted from Marathon Mod. Ozone RACT)
4
$640,000
Cooling System Purchased Equipment Capital Costs based in past installation of three fin fan banks.
$800,000
5
Additional Costs = $169,950
6 Air permitting based on $500 for R307-401-12 administrative update, plus 20 hours at $50/hr labor rate per tank.
Initial permitting cost ($) = 1,500$ /tank
7
https://downloads.regulations.gov/EPA-HQ-OAR-2023-0358-0002/content.pdf
IFRT Maintenance Cost: 5% of TCI, per Page 8 of 44.
8 Property Taxes, Insurance Administrative Charges
Per EPA Cost Control Manual, Section 2.6.5.8, these are equal to 4% of total capital investment.
PTIA Costs: 4% of TCI
9 Capital Recovery Factor, where: 0.098
i = Prime Interest Rate = 0.085 , as fraction
n = Exp. Equipment Life (yrs) = 25 Engineering estimate
10
10-Year Adjustment of Inflation 1.41
20-Year Adjustment of Inflation 1.82
11 Emissions reduction realized by installing IFRT within existing VFRT:
Actual Emissions (lb/yr)
Existing
VFRT IFRT Scenario Reduction %
Tank 60114
(Diesel)8,639.81 171.80 98.0%
Tank 30080
(VGO/DGO)3,555.15 80.33 97.7%
Efficiency = 98.0%
12
Cost Effectiveness ($/ton) =
/tank, based on Marathon Salt Lake City Refinery's 2023 RACT Review,
estimate adjusted to 2024 dollars (+3%).
Additional retrofit costs include fitting/accessibility modifications, contractor coordination, contract arrangement, confined
space/emergency response, blinding, stripping, tank dike re-grading, project overhead, and fuel.
Estimated indirect costs (25% of purchased equipment cost for engineering & project management, 20% of PEC for construction
and field expenses, 15% of PEC for contractor fees, 10% of PEC for startup, 10% of PEC for contingencies) for Heat
[Annualized Capital Costs ($/yr) + Total Operating, Maintenance, Indirect Costs ($/yr)] /
Annual VOC Reduction (tons/yr)
Cost Effectiveness calculation obtained from UDAQ's RACT Process webpage at: https://deq.utah.gov/air-quality/reasonably-
available-control-technology-ract-process-ozone-sip
For hot tanks, additional cooling is required to cool materials sufficiently to store materials in tank with a floating roof to avoid
damage to tank seals.
Cost obtained from RTI International's "Control Options for Storage Vessels" used for Proposed NSPS Subpart Kc. Accessed on
April 25, 2024 at:
=i/(1-(1+i)^(-n)), per UDAQ guidance at: https://deq.utah.gov/air-
quality/reasonably-available-control-technology-ract-process-ozone-sip
800.8/567.3 CEPCI adjustment from 2023 to 2013. Assume double
increase (41% x 2 = 82%) for next 20 years.
800.8/567.3 CEPCI adjustment from 2023 to 2013. Assume similar
increase (41%) for next 10 years.
Within life of EFRT, degassing expected every ten years for lifetime of tank for regulatory and/or API inspections. Assume two
additional degassing events at 10 and 20 years from 2024.
Modeled emissions reduction in TanksESP for Tanks 30080 and Tank 60114. Applied default fitting counts from AP-42 Chapter
7.1, with fittings that comply with 40 CFR 63 Subparts CC/WW.
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Domes on EFRs
Tank Type Dia (ft) Throughput
(1000-gal)
RY2017
Actual
Emissions
(tpy)
Max
Monthly
Avg. TVP
(psia)
Initial Cleaning/
Degassing/
Sludge
Removal Costs
Initial Dome
and Fire
System
Installation
Costs
Additional
Initial
Retrofit
Costs
Initial Air
Permittin
g
Indirect
Costs
Total Capital
Investment
($)
Annualized
Capital
Costs ($/yr)
Lifetime
Cleaning/
Degassing/
Sludge
Removal
Costs (2024$)
Lifetime Dome
Maintenance
Costs (2024$)
Annualized
Maintenance
and Cleaning
Costs ($/yr,
2024$)
Annual Property
Taxes,
Insurance,
Admin Charges
($/yr)
Total
Operating,
Maintenanc
e, Indirect
Costs ($/yr)
Annual
VOC
Reduction
(tpy)
Cost
Effectiveness
($/ton)
Notes:1112 3467 9 5 8 1011
1511 EFRT 22 56 0.47 4.931 70,000$ 361,038$ 169,950$ 1,500$ 252,727$ 855,215$ 83,564$ 210,000$ 26,089$ 9,444$ 34,209$ 43,652$ 0.38 330,880$
1512 EFRT 22 113 0.47 4.931 70,000$ 361,038$ 169,950$ 1,500$ 252,727$ 855,215$ 83,564$ 210,000$ 26,089$ 9,444$ 34,209$ 43,652$ 0.38 330,622$
2111 EFRT 16 82 0.19 1.200 150,000$ 345,773$ 169,950$ 1,500$ 242,041$ 909,265$ 88,846$ 450,000$ 23,823$ 18,953$ 36,371$ 55,324$ 0.16 927,979$
3350 EFRT 40 2,181 0.14 1.059 150,000$ 410,996$ 169,950$ 1,500$ 287,697$ 1,020,143$ 99,680$ 450,000$ 32,885$ 19,315$ 40,806$ 60,121$ 0.12 1,345,884$
5038 EFRT 30 1,488 3.18 7.440 150,000$ 382,444$ 169,950$ 1,500$ 267,711$ 971,606$ 94,937$ 450,000$ 29,109$ 19,164$ 38,864$ 58,029$ 2.61 58,649$
7513 EFRT 37 2,355 3.58 7.440 150,000$ 402,214$ 169,950$ 1,500$ 281,550$ 1,005,213$ 98,221$ 450,000$ 31,752$ 19,270$ 40,209$ 59,479$ 2.93 53,791$
7539 EFRT 36 758 2.17 7.440 150,000$ 399,328$ 169,950$ 1,500$ 279,530$ 1,000,308$ 97,742$ 450,000$ 31,375$ 19,255$ 40,012$ 59,267$ 1.78 88,416$
10094 EFRT 40 327 1.32 9.258 70,000$ 410,996$ 169,950$ 1,500$ 287,697$ 940,143$ 91,863$ 210,000$ 32,885$ 9,715$ 37,606$ 47,321$ 1.08 128,848$
10095 EFRT 40 1,180 0.13 1.019 50,000$ 410,996$ 169,950$ 1,500$ 287,697$ 920,143$ 89,909$ 150,000$ 32,885$ 7,315$ 36,806$ 44,121$ 0.10 1,291,302$
15093 EFRT 48 966 1.90 8.893 70,000$ 435,364$ 169,950$ 1,500$ 304,755$ 981,570$ 95,911$ 210,000$ 35,906$ 9,836$ 39,263$ 49,099$ 1.56 93,131$
15103 EFRT 55 4,926 0.48 1.572 70,000$ 457,869$ 169,950$ 1,500$ 320,508$ 1,019,828$ 99,649$ 210,000$ 38,549$ 9,942$ 40,793$ 50,735$ 0.39 385,904$
15104 EFRT 55 2,180 0.45 1.572 70,000$ 457,869$ 169,950$ 1,500$ 320,508$ 1,019,828$ 99,649$ 210,000$ 38,549$ 9,942$ 40,793$ 50,735$ 0.37 410,317$
20015 EFRT 55 1,041 0.00 0.017 70,000$ 457,869$ 169,950$ 1,500$ 320,508$ 1,019,828$ 99,649$ 210,000$ 38,549$ 9,942$ 40,793$ 50,735$ 0.00 43,821,227$
20016 EFRT 55 4,588 0.02 0.042 70,000$ 457,869$ 169,950$ 1,500$ 320,508$ 1,019,828$ 99,649$ 210,000$ 38,549$ 9,942$ 40,793$ 50,735$ 0.02 7,965,850$
20017 EFRT 55 11,033 2.36 8.166 150,000$ 457,869$ 169,950$ 1,500$ 320,508$ 1,099,828$ 107,466$ 450,000$ 38,549$ 19,542$ 43,993$ 63,535$ 1.93 88,542$
20018 EFRT 55 6,384 0.47 4.169 70,000$ 457,869$ 169,950$ 1,500$ 320,508$ 1,019,828$ 99,649$ 210,000$ 38,549$ 9,942$ 40,793$ 50,735$ 0.38 392,101$
20019 EFRT 55 33,199 3.32 9.192 50,000$ 457,869$ 169,950$ 1,500$ 320,508$ 999,828$ 97,695$ 150,000$ 38,549$ 7,542$ 39,993$ 47,535$ 2.72 53,382$
25108 EFRT 71 17,629 0.54 1.285 1,500,000$ 513,774$ 169,950$ 1,500$ 359,642$ 2,544,866$ 248,663$ 4,500,000$ 44,590$ 181,784$ 101,795$ 283,578$ 0.45 1,194,737$
25109 EFRT 71 11,286 0.46 1.401 1,500,000$ 513,774$ 169,950$ 1,500$ 359,642$ 2,544,866$ 248,663$ 4,500,000$ 44,590$ 181,784$ 101,795$ 283,578$ 0.38 1,408,675$
30020 EFRT 67 34,514 2.92 9.581 50,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,070,070$ 104,558$ 150,000$ 43,079$ 7,723$ 42,803$ 50,526$ 2.39 64,863$
30021 EFRT 67 35,388 2.64 9.099 50,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,070,070$ 104,558$ 150,000$ 43,079$ 7,723$ 42,803$ 50,526$ 2.16 71,640$
30022 EFRT 67 12,786 1.37 8.373 50,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,070,070$ 104,558$ 150,000$ 43,079$ 7,723$ 42,803$ 50,526$ 1.12 138,157$
30023 EFRT 67 6,369 0.53 1.088 70,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,090,070$ 106,513$ 210,000$ 43,079$ 10,123$ 43,603$ 53,726$ 0.43 370,441$
30024 EFRT 67 5,017 0.48 1.145 150,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,170,070$ 114,330$ 450,000$ 43,079$ 19,723$ 46,803$ 66,526$ 0.39 461,176$
30091 EFRT 67 36,724 6.35 10.799 70,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,090,070$ 106,513$ 210,000$ 43,079$ 10,123$ 43,603$ 53,726$ 5.21 30,768$
30092 EFRT 67 43,048 5.36 10.884 70,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,090,070$ 106,513$ 210,000$ 43,079$ 10,123$ 43,603$ 53,726$ 4.40 36,429$
30096 EFRT 67 46,203 4.61 10.518 70,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,090,070$ 106,513$ 210,000$ 43,079$ 10,123$ 43,603$ 53,726$ 3.78 42,417$
30097 EFRT 67 690 2.27 9.253 70,000$ 499,188$ 169,950$ 1,500$ 349,432$ 1,090,070$ 106,513$ 210,000$ 43,079$ 10,123$ 43,603$ 53,726$ 1.86 86,222$
30107 EFRT 80 20,182 0.54 1.572 1,500,000$ 548,169$ 169,950$ 1,500$ 383,718$ 2,603,337$ 254,376$ 4,500,000$ 47,988$ 181,920$ 104,133$ 286,053$ 0.44 1,224,988$
35110 EFRT 90 2,189 0.69 1.088 70,000$ 589,093$ 169,950$ 1,500$ 412,365$ 1,242,907$ 121,447$ 210,000$ 51,763$ 10,471$ 49,716$ 60,187$ 0.56 323,133$
40073 EFRT 78 37,838 0.06 0.031 50,000$ 540,332$ 169,950$ 1,500$ 378,232$ 1,140,014$ 111,393$ 150,000$ 47,233$ 7,889$ 45,601$ 53,490$ 0.05 3,117,601$
40075 EFRT 78 27,134 3.32 10.312 50,000$ 540,332$ 169,950$ 1,500$ 378,232$ 1,140,014$ 111,393$ 150,000$ 47,233$ 7,889$ 45,601$ 53,490$ 2.72 60,537$
40076 EFRT 78 29,853 2.98 9.833 50,000$ 540,332$ 169,950$ 1,500$ 378,232$ 1,140,014$ 111,393$ 150,000$ 47,233$ 7,889$ 45,601$ 53,490$ 2.45 67,384$
40100 EFRT 80 38,539 3.89 8.349 50,000$ 548,169$ 169,950$ 1,500$ 383,718$ 1,153,337$ 112,695$ 150,000$ 47,988$ 7,920$ 46,133$ 54,053$ 3.19 52,266$
50078 EFRT 87 88,996 3.65 9.153 50,000$ 576,505$ 169,950$ 1,500$ 403,553$ 1,201,508$ 117,401$ 150,000$ 50,631$ 8,025$ 48,060$ 56,086$ 2.99 57,969$
50079 EFRT 87 59,604 3.64 10.191 50,000$ 576,505$ 169,950$ 1,500$ 403,553$ 1,201,508$ 117,401$ 150,000$ 50,631$ 8,025$ 48,060$ 56,086$ 2.99 58,086$
60059 EFRT 100 66,695 0.56 2.386 150,000$ 633,072$ 169,950$ 1,500$ 443,150$ 1,397,672$ 136,569$ 450,000$ 55,539$ 20,222$ 55,907$ 76,128$ 0.46 461,541$
60060 EFRT 102 39,801 0.47 2.809 150,000$ 642,254$ 169,950$ 1,500$ 449,578$ 1,413,281$ 138,094$ 450,000$ 56,294$ 20,252$ 56,531$ 76,783$ 0.38 561,037$
60061 EFRT 102 58,188 0.58 4.096 150,000$ 642,254$ 169,950$ 1,500$ 449,578$ 1,413,281$ 138,094$ 450,000$ 56,294$ 20,252$ 56,531$ 76,783$ 0.48 449,339$
60062 EFRT 102 21,294 0.70 6.167 150,000$ 642,254$ 169,950$ 1,500$ 449,578$ 1,413,281$ 138,094$ 450,000$ 56,294$ 20,252$ 56,531$ 76,783$ 0.57 375,659$
60063 EFRT 102 78,868 0.70 3.233 150,000$ 642,254$ 169,950$ 1,500$ 449,578$ 1,413,281$ 138,094$ 450,000$ 56,294$ 20,252$ 56,531$ 76,783$ 0.57 376,813$
60077 EFRT 94 53,672 2.93 9.044 50,000$ 606,305$ 169,950$ 1,500$ 424,414$ 1,252,169$ 122,352$ 150,000$ 53,274$ 8,131$ 50,087$ 58,218$ 2.40 75,174$
80115 EFRT 120 95,611 5.28 9.951 50,000$ 731,124$ 169,950$ 1,500$ 511,787$ 1,464,361$ 143,085$ 150,000$ 63,091$ 8,524$ 58,574$ 67,098$ 4.33 48,515$
90116 EFRT 120 64,294 0.50 2.273 150,000$ 731,124$ 169,950$ 1,500$ 511,787$ 1,564,361$ 152,856$ 450,000$ 63,091$ 20,524$ 62,574$ 83,098$ 0.41 572,053$
90117 EFRT 120 27,083 0.31 2.432 150,000$ 731,124$ 169,950$ 1,500$ 511,787$ 1,564,361$ 152,856$ 450,000$ 63,091$ 20,524$ 62,574$ 83,098$ 0.25 930,909$
D14 EFRT 120 36 0.00 0.071 50,000$ 731,124$ 169,950$ 1,500$ 511,787$ 1,464,361$ 143,085$ 150,000$ 63,091$ 8,524$ 58,574$ 67,098$ 0.00 174,814,813$
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Domes on EFRs
Technical Notes to Support Cost Analysis
Notes:
1
2 Initial cleaning and degassing cost required for project implementation.
Clean &
Degas
(EFRT)
Sludge
Removal/
Clean (VFRT)
Degas Only
(EFRT)
Blendstock/Product $50,000 $15,000 $40,000 Estimated based on refinery-specific past events.
$70,000 $40,000 $40,000 Estimated based on refinery-specific past events.
$150,000 $120,000 $40,000 Estimated based on refinery-specific past events.
WWTP Surge Tanks $1,500,000 $1,470,000 $40,000
3 Retrofit cost obtained from SCAQMD Proposed Rulemaking for Rule 1178. Workshop #6.
Available at:
Retrofit Cost = $308,149* exp(0.0072 * diameter in ft)
Cost includes the following:
Fire suppression (~$105,500/tank).
Cost estimate excludes the following:
Permitting. Lost-productivity. Cleaning/degassing (per workshop #7)
4
Additional Costs = $169,950
5 Cost evaluation based on SCAQMD Proposed Rulemaking for Rule 1178, Workshop #8.
Available at:
- Dome maintenance typically needed after approximately 20 years in service
- Maintenance requires sealing of seams and hubcaps (caulking, taping, sealant).
- Frequency of maintenance approximately every 20 years.
Diameter (ft)50-yr Cost
25-yr Cost
(assume 45%
of 50 yr Cost)
25-Yr Cost,
2024
Dollars
55 70,000$ 31,500$ 32,445$
70 110,000$ 49,500$ 50,985$
200 200,000$ 90,000$ 92,700$
260 250,000$ 112,500$ 115,875$
Lin. Reg. Slope: 814.60 366.57 377.57
Lin. Reg. Intercept: 38,364.96 17,264.23 17,782.16
50-Yr Lifetime O&M Costs ($) = $814.60*(diameter in ft) + $38,364.96
25-Yr Lifetime O&M Costs ($) = $366.57*(diameter in ft) + $17,264.23
Annual operating data based on RY2017 Air Emissions Inventory (AEI) submitted in SLEIS. Data for Tank 2111 based on
RY2023 AEI due to pending resubmittals for years before that.
Intermediates, Caustic, IAF
Effluent
Crude Oil, Slop Oil, COSC,
BWON WW Tanks
Estimated based on refinery-specific past events.
Historical Tank 107 cleanout (front end of WWTP)
was $1.5MM. Front end of WWTP accumulates
significant amounts of oil due to dissolved oils in
untreated wastewater.
https://www.aqmd.gov/docs/default-source/rule-book/Proposed-Rules/1178/par-1178_wgm-
6_v9.pdf?sfvrsn=14
/tank, based on Marathon Salt Lake City Refinery's 2023 RACT Review,
estimate adjusted to 2024 dollars.
Additional retrofit costs include fitting/accessibility modifications, contractor coordination, contract arrangement, confined
space/emergency response, blinding, stripping, tank dike re-grading, project overhead, and fuel.
O&M costs include the following, based on information from dome manufacturers, dome maintenance service providers and
facilities:
https://www.aqmd.gov/docs/default-source/rule-book/Proposed-Rules/1178/par-
1178_wgm8_final.pdf?sfvrsn=14
6 Air permitting based on $500 for R307-401-12 administrative update, plus 20 hours at $50/hr labor rate per tank.
Initial permitting cost ($) = 1,500$ /tank
7
Indirect Costs ($) = 70% of purchased equipment cost (Dome and Fire System)
8 Property Taxes, Insurance Administrative Charges
Per EPA Cost Control Manual, Section 2.6.5.8, these are equal to 4% of total capital investment.
PTIA Costs: 4% of TCI
9 Capital Recovery Factor, where: 0.098
i = Prime Interest Rate = 0.085 , as fraction, effective February 13, 2024.
n = Exp. Equipment Life (yrs) = 25 Engineering estimate
10 Emissions reduction realized by installing domed roof:
Modeled emissions reduction in TanksESP for Tank 7513 and Tank 80115 when converting from EFRT to Domed EFRT.
Actual Emissions (lb/yr)
Existing
EFRT
DEFRT
Scenario Reduction %
Tank 80115 10,566.78 2,000.44 81.1%
Tank 7513 7,150.51 1,253.81 82.5%
Efficiency = 82.0%
11
Cost Effectiveness ($/ton) = [Annualized Capital Costs ($/yr) + Total Operating, Maintenance, Indirect Costs ($/yr)] / Annual
VOC Reduction (tons/yr)
Cost Effectiveness calculation obtained from UDAQ's RACT Process webpage at: https://deq.utah.gov/air-quality/reasonably-
available-control-technology-ract-process-ozone-sip
=i/(1-(1+i)^(-n)), per UDAQ guidance at: https://deq.utah.gov/air-
quality/reasonably-available-control-technology-ract-process-ozone-sip
Indirect costs include engineering and project management (25% of purchased equipment cost), construction and field expenses
(20% of PEC), contractor fees (15% of PEC), startup (10% of PEC).
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Carbon Canister Controls
Tank Type Dia (ft) Throughput
(1000-gal)
Avg. Annual
Displacement
(cfm)
RY2017
Total
Emissions
(tpy)
Max
Monthly
Avg. TVP
(psia)
Initial Cleaning/
Degassing/
Sludge
Removal Costs
Capital Cost of
New Cone Roof
and Column
(Existing
EFRTs Only)
EFRT
Demolition
Lifetime Roof
Painting
(Existing
EFRTs Only),
as Capital Cost
(2024$)
Placeholder
Piping Cost
Carbon
Canister
System
Capital Cost
Ancillary
Systems
Capital
Cost
Initial Air
Permitting
Initial
Performance
Testing
Total Capital
Investment
($)
Annualized
Capital
Costs ($/yr)
Annual Carbon
Canister
O&M&I Cost
Lifetime
Recurring
Performance
Testing Cost
Annualized
Stack
Testing
Cost
Estimated
Virgin
Carbon
Usage
(lb/yr)
Annual Waste
Management
Costs ($/yr)
Annual
Property
Taxes,
Insurance,
Admin
Charges
($/yr)
Total
Operating,
Maintenance,
Indirect Costs
($/yr)
Annual
VOC
Reduction
(tpy)
Cost
Effectiveness
($/ton)
Notes: 1 2 1 1 34567891011 12 8 11 8 13, 14 15 16 17
537 FRT (no floating roof) 13 40 0 0.17 4.931 120,000$ -$ -$ -$ 500,000$ 15,039$ 36,000$ 2,500$ 10,000$ 683,539$ 104,177$ 11,845$ 20,000$ 2,000$ 1,032 17,375$ 27,342$ 58,562$ 0.17 965,645$
1511 EFRT 22 56 0 0.49 4.931 70,000$ 488,123$ 200,000$ 6,384$ 500,000$ 21,505$ 36,000$ 2,500$ 10,000$ 1,334,512$ 203,390$ 18,039$ 20,000$ 2,000$ 2,964 17,375$ 53,380$ 90,795$ 0.30 992,075$
1512 EFRT 22 113 0 0.49 4.931 70,000$ 488,123$ 200,000$ 6,384$ 500,000$ 21,514$ 36,000$ 2,500$ 10,000$ 1,334,521$ 203,391$ 18,048$ 20,000$ 2,000$ 2,967 17,375$ 53,381$ 90,803$ 0.30 991,376$
2111 EFRT 16 82 0 0.19 1.200 70,000$ 467,486$ 200,000$ 3,377$ 500,000$ 15,317$ 36,000$ 2,500$ 10,000$ 1,304,679$ 198,843$ 12,112$ 20,000$ 2,000$ 1,136 17,375$ 52,187$ 83,674$ 0.11 2,485,264$
3350 EFRT 40 2,181 3 0.16 1.059 150,000$ 555,667$ 200,000$ 21,103$ 500,000$ 14,927$ 36,000$ 2,500$ 10,000$ 1,490,197$ 227,117$ 11,738$ 20,000$ 2,000$ 988 17,375$ 59,608$ 90,721$ 0.10 3,214,758$
5038 EFRT 30 1,488 6 3.34 7.440 50,000$ 517,065$ 200,000$ 11,871$ 500,000$ 202,181$ 36,000$ 2,500$ 10,000$ 1,529,616$ 233,125$ 191,109$ 20,000$ 2,000$ 20,061 44,391$ 61,185$ 298,685$ 2.01 265,002$
5083 FRT (no floating roof) 34 5,192 13 0.07 0.044 40,000$ -$ -$ -$ 500,000$ 13,615$ 36,000$ 2,500$ 10,000$ 602,115$ 91,767$ 10,481$ 20,000$ 2,000$ 435 17,375$ 24,085$ 53,941$ 0.07 2,052,514$
5084 FRT (no floating roof) 34 5,389 11 0.07 0.044 40,000$ -$ -$ -$ 500,000$ 13,597$ 36,000$ 2,500$ 10,000$ 602,097$ 91,764$ 10,464$ 20,000$ 2,000$ 426 17,375$ 24,084$ 53,923$ 0.07 2,092,217$
7513 EFRT 37 2,355 8 3.76 7.440 70,000$ 543,793$ 200,000$ 18,056$ 500,000$ 246,585$ 45,000$ 2,500$ 10,000$ 1,635,934$ 249,329$ 233,644$ 20,000$ 2,000$ 22,529 49,781$ 65,437$ 350,862$ 2.25 266,316$
7539 EFRT 36 758 6 3.05 7.440 50,000$ 539,892$ 200,000$ 17,094$ 500,000$ 173,361$ 36,000$ 2,500$ 10,000$ 1,528,846$ 233,008$ 163,502$ 20,000$ 2,000$ 18,303 40,550$ 61,154$ 267,207$ 1.83 273,205$
10085 FRT (no floating roof) 48 1,142 0 0.10 0.010 40,000$ -$ -$ -$ 500,000$ 13,969$ 36,000$ 2,500$ 10,000$ 602,469$ 91,821$ 10,820$ 20,000$ 2,000$ 594 17,375$ 24,099$ 54,294$ 0.10 1,505,579$
10086 FRT (no floating roof) 48 855 11 0.02 0.004 40,000$ -$ -$ -$ 500,000$ 13,021$ 36,000$ 2,500$ 10,000$ 601,521$ 91,677$ 9,913$ 20,000$ 2,000$ 145 17,375$ 24,061$ 53,348$ 0.02 6,135,553$
10094 EFRT 40 327 2 1.24 9.258 70,000$ 555,667$ 200,000$ 21,103$ 500,000$ 47,316$ 36,000$ 2,500$ 10,000$ 1,442,586$ 219,861$ 42,764$ 20,000$ 2,000$ 7,434 17,375$ 57,703$ 119,843$ 0.74 456,816$
10095 EFRT 40 1,180 12 0.12 1.019 50,000$ 555,667$ 200,000$ 21,103$ 500,000$ 14,253$ 36,000$ 2,500$ 10,000$ 1,389,523$ 211,774$ 11,092$ 20,000$ 2,000$ 716 17,375$ 55,581$ 86,048$ 0.07 4,157,983$
15088 FRT (no floating roof) 58 4,542 30 1.26 0.046 40,000$ -$ -$ -$ 500,000$ 48,272$ 36,000$ 2,500$ 10,000$ 636,772$ 97,049$ 43,680$ 20,000$ 2,000$ 7,561 18,699$ 25,471$ 89,850$ 1.24 151,289$
15090 FRT (no floating roof) 58 4,620 30 1.09 0.046 40,000$ -$ -$ -$ 500,000$ 41,027$ 36,000$ 2,500$ 10,000$ 629,527$ 95,945$ 36,740$ 20,000$ 2,000$ 6,553 17,375$ 25,181$ 81,296$ 1.07 165,550$
15093 EFRT 48 966 32 1.78 8.893 70,000$ 588,613$ 200,000$ 30,389$ 500,000$ 75,655$ 36,000$ 2,500$ 10,000$ 1,513,156$ 230,617$ 69,910$ 20,000$ 2,000$ 10,689 23,920$ 60,526$ 156,356$ 1.07 361,920$
15098 FRT (no floating roof) 58 955 11 0.04 0.004 40,000$ -$ -$ -$ 500,000$ 13,244$ 36,000$ 2,500$ 10,000$ 601,744$ 91,710$ 10,126$ 20,000$ 2,000$ 257 17,375$ 24,070$ 53,571$ 0.04 3,459,103$
15099 FRT (no floating roof) 58 1,665 5 0.10 0.009 40,000$ -$ -$ -$ 500,000$ 14,038$ 36,000$ 2,500$ 10,000$ 602,538$ 91,831$ 10,887$ 20,000$ 2,000$ 624 17,375$ 24,102$ 54,363$ 0.10 1,433,550$
15103 EFRT 55 4,926 10 0.41 1.572 70,000$ 619,039$ 200,000$ 39,898$ 500,000$ 19,619$ 36,000$ 2,500$ 10,000$ 1,497,057$ 228,163$ 16,233$ 20,000$ 2,000$ 2,480 17,375$ 59,882$ 95,490$ 0.25 1,304,457$
15104 EFRT 55 2,180 10 0.39 1.572 70,000$ 619,039$ 200,000$ 39,898$ 500,000$ 19,055$ 36,000$ 2,500$ 10,000$ 1,496,493$ 228,077$ 15,693$ 20,000$ 2,000$ 2,326 17,375$ 59,860$ 94,927$ 0.23 1,388,270$
20015 EFRT 55 1,041 10 0.00 0.017 70,000$ 619,039$ 200,000$ 39,898$ 500,000$ 12,792$ 36,000$ 2,500$ 10,000$ 1,490,230$ 227,122$ 9,693$ 20,000$ 2,000$ 24 17,375$ 59,609$ 88,677$ 0.00 133,907,137$
20016 EFRT 55 4,588 10 0.02 0.042 50,000$ 619,039$ 200,000$ 39,898$ 500,000$ 12,976$ 36,000$ 2,500$ 10,000$ 1,470,413$ 224,102$ 9,869$ 20,000$ 2,000$ 121 17,375$ 58,817$ 88,061$ 0.01 25,765,637$
20017 EFRT 55 11,033 17 2.18 8.166 150,000$ 619,039$ 200,000$ 39,898$ 500,000$ 101,380$ 36,000$ 2,500$ 10,000$ 1,658,817$ 252,817$ 94,552$ 20,000$ 2,000$ 13,061 29,102$ 66,353$ 192,007$ 1.31 340,452$
20018 EFRT 55 6,384 50 0.50 4.169 70,000$ 619,039$ 200,000$ 39,898$ 500,000$ 21,669$ 36,000$ 2,500$ 10,000$ 1,499,106$ 228,475$ 18,196$ 20,000$ 2,000$ 3,005 17,375$ 59,964$ 97,536$ 0.30 1,084,728$
20019 EFRT 55 33,199 50 2.92 9.192 50,000$ 619,039$ 200,000$ 39,898$ 500,000$ 161,313$ 36,000$ 2,500$ 10,000$ 1,618,751$ 246,710$ 151,962$ 20,000$ 2,000$ 17,522 38,845$ 64,750$ 257,557$ 1.75 287,695$
20030 FRT (no floating roof) 67 26,949 49 0.79 0.026 15,000$ -$ -$ -$ 500,000$ 30,067$ 36,000$ 2,500$ 10,000$ 593,567$ 90,464$ 26,241$ 20,000$ 2,000$ 4,763 17,375$ 23,743$ 69,359$ 0.78 205,382$
20031 FRT (no floating roof) 67 33,141 49 0.82 0.025 15,000$ -$ -$ -$ 500,000$ 31,067$ 36,000$ 2,500$ 10,000$ 594,567$ 90,617$ 27,199$ 20,000$ 2,000$ 4,944 17,375$ 23,783$ 70,357$ 0.81 199,270$
20032 FRT (no floating roof) 67 32,116 49 0.80 0.025 15,000$ -$ -$ -$ 500,000$ 30,145$ 36,000$ 2,500$ 10,000$ 593,645$ 90,476$ 26,316$ 20,000$ 2,000$ 4,777 17,375$ 23,746$ 69,437$ 0.78 204,882$
20033 FRT (no floating roof) 67 34,014 49 0.82 0.025 15,000$ -$ -$ -$ 500,000$ 30,960$ 36,000$ 2,500$ 10,000$ 594,460$ 90,600$ 27,097$ 20,000$ 2,000$ 4,925 17,375$ 23,778$ 70,250$ 0.80 199,896$
20040 FRT (no floating roof) 67 6,735 58 0.70 0.030 15,000$ -$ -$ -$ 500,000$ 27,249$ 36,000$ 2,500$ 10,000$ 590,749$ 90,035$ 23,541$ 20,000$ 2,000$ 4,225 17,375$ 23,630$ 66,546$ 0.69 226,838$
25108 EFRT 71 17,629 51 0.47 1.285 1,500,000$ 694,622$ 200,000$ 66,488$ 500,000$ 20,881$ 36,000$ 2,500$ 10,000$ 3,030,492$ 461,870$ 17,442$ 20,000$ 2,000$ 2,809 17,375$ 121,220$ 158,037$ 0.28 2,205,881$
25109 EFRT 71 11,286 51 0.40 1.401 1,500,000$ 694,622$ 200,000$ 66,488$ 500,000$ 19,397$ 36,000$ 2,500$ 10,000$ 3,029,008$ 461,644$ 16,020$ 20,000$ 2,000$ 2,420 17,375$ 121,160$ 156,556$ 0.24 2,553,564$
30020 EFRT 67 34,514 78 2.55 9.581 50,000$ 674,903$ 200,000$ 59,208$ 500,000$ 129,487$ 36,000$ 2,500$ 10,000$ 1,662,097$ 253,316$ 121,476$ 20,000$ 2,000$ 15,294 33,978$ 66,484$ 223,937$ 1.53 311,954$
30021 EFRT 67 35,388 78 2.46 9.099 70,000$ 674,903$ 200,000$ 59,208$ 500,000$ 122,514$ 36,000$ 2,500$ 10,000$ 1,675,125$ 255,302$ 114,797$ 20,000$ 2,000$ 14,767 32,828$ 67,005$ 216,629$ 1.48 319,478$
30022 EFRT 67 12,786 78 1.36 8.373 50,000$ 674,903$ 200,000$ 59,208$ 500,000$ 52,876$ 36,000$ 2,500$ 10,000$ 1,585,486$ 241,640$ 48,090$ 20,000$ 2,000$ 8,152 18,379$ 63,419$ 131,889$ 0.82 458,062$
30023 EFRT 67 6,369 77 0.55 1.088 70,000$ 674,903$ 200,000$ 59,208$ 500,000$ 22,952$ 36,000$ 2,500$ 10,000$ 1,575,562$ 240,128$ 19,426$ 20,000$ 2,000$ 3,308 17,375$ 63,022$ 101,823$ 0.33 1,033,281$
30024 EFRT 67 5,017 77 0.48 1.145 150,000$ 674,903$ 200,000$ 59,208$ 500,000$ 21,162$ 36,000$ 2,500$ 10,000$ 1,653,772$ 252,048$ 17,711$ 20,000$ 2,000$ 2,880 17,375$ 66,151$ 103,237$ 0.29 1,233,331$
30041 FRT (no floating roof) 82 22,997 78 1.71 0.030 15,000$ -$ -$ -$ 500,000$ 71,577$ 36,000$ 2,500$ 10,000$ 635,077$ 96,791$ 66,004$ 20,000$ 2,000$ 10,272 25,196$ 25,403$ 118,603$ 1.68 128,341$
30042 FRT (no floating roof) 82 22,280 78 1.86 0.030 15,000$ -$ -$ -$ 500,000$ 80,391$ 36,000$ 2,500$ 10,000$ 643,891$ 98,134$ 74,446$ 20,000$ 2,000$ 11,157 27,317$ 25,756$ 129,519$ 1.82 124,888$
30043 FRT (no floating roof) 82 6,742 24 80.11 4.453 40,000$ -$ -$ -$ 500,000$ 4,448,541$ 60,000$ 2,500$ 10,000$ 5,061,041$ 771,342$ 4,258,553$ 20,000$ 2,000$ 480,528 856,374$ 202,442$ 5,319,368$ 78.51 77,576$
30069 FRT (no floating roof) 82 9,339 24 1.80 0.088 40,000$ -$ -$ -$ 500,000$ 76,912$ 36,000$ 2,500$ 10,000$ 665,412$ 101,414$ 71,114$ 20,000$ 2,000$ 10,814 26,497$ 26,616$ 126,227$ 1.77 128,833$
30074 FRT (no floating roof) 82 32,496 78 2.35 0.030 15,000$ -$ -$ -$ 500,000$ 114,095$ 36,000$ 2,500$ 10,000$ 677,595$ 103,271$ 106,732$ 20,000$ 2,000$ 14,109 34,393$ 27,104$ 170,229$ 2.31 118,646$
30080 FRT (no floating roof) 82 2,347 35 1.86 0.046 40,000$ -$ -$ -$ 500,000$ 80,224$ 36,000$ 2,500$ 10,000$ 668,724$ 101,919$ 74,287$ 20,000$ 2,000$ 11,140 27,278$ 26,749$ 130,315$ 1.82 127,585$
30081 FRT (no floating roof) 82 6,433 30 1.10 0.046 40,000$ -$ -$ -$ 500,000$ 41,280$ 36,000$ 2,500$ 10,000$ 629,780$ 95,983$ 36,982$ 20,000$ 2,000$ 6,590 17,375$ 25,191$ 81,548$ 1.08 164,887$
30082 FRT (no floating roof) 82 6,343 30 1.42 0.046 40,000$ -$ -$ -$ 500,000$ 55,724$ 36,000$ 2,500$ 10,000$ 644,224$ 98,185$ 50,818$ 20,000$ 2,000$ 8,501 20,953$ 25,769$ 99,540$ 1.39 142,349$
30091 EFRT 67 36,724 59 6.27 10.799 70,000$ 674,903$ 200,000$ 59,208$ 500,000$ 618,478$ 45,000$ 2,500$ 10,000$ 2,180,088$ 332,262$ 589,878$ 20,000$ 2,000$ 37,613 82,726$ 87,204$ 761,807$ 3.76 290,775$
30092 EFRT 67 43,048 59 4.63 10.884 50,000$ 674,903$ 200,000$ 59,208$ 500,000$ 356,150$ 45,000$ 2,500$ 10,000$ 1,897,760$ 289,233$ 338,595$ 20,000$ 2,000$ 27,767 61,221$ 75,910$ 477,726$ 2.78 276,118$
30096 EFRT 67 46,203 59 3.95 10.518 50,000$ 674,903$ 200,000$ 59,208$ 500,000$ 268,808$ 45,000$ 2,500$ 10,000$ 1,810,418$ 275,922$ 254,931$ 20,000$ 2,000$ 23,677 52,288$ 72,417$ 381,635$ 2.37 277,628$
30097 EFRT 67 690 59 2.12 9.253 150,000$ 674,903$ 200,000$ 59,208$ 500,000$ 97,656$ 36,000$ 2,500$ 10,000$ 1,730,266$ 263,706$ 90,985$ 20,000$ 2,000$ 12,741 28,402$ 69,211$ 190,598$ 1.27 356,453$
30107 EFRT 80 20,182 51 0.48 1.572 1,500,000$ 741,124$ 200,000$ 84,413$ 500,000$ 21,090$ 36,000$ 2,500$ 10,000$ 3,095,127$ 471,721$ 17,642$ 20,000$ 2,000$ 2,862 17,375$ 123,805$ 160,822$ 0.29 2,209,559$
35110 EFRT 90 2,189 77 0.72 1.088 70,000$ 796,453$ 200,000$ 106,835$ 500,000$ 27,617$ 36,000$ 2,500$ 10,000$ 1,749,405$ 266,623$ 23,894$ 20,000$ 2,000$ 4,298 17,375$ 69,976$ 113,246$ 0.43 883,612$
40050 FRT (no floating roof) 95 9,299 23 0.05 0.003 40,000$ -$ -$ -$ 500,000$ 13,277$ 36,000$ 2,500$ 10,000$ 601,777$ 91,715$ 10,158$ 20,000$ 2,000$ 273 17,375$ 24,071$ 53,604$ 0.04 3,253,362$
40051 FRT (no floating roof) 95 5,693 23 0.03 0.004 40,000$ -$ -$ -$ 500,000$ 13,112$ 36,000$ 2,500$ 10,000$ 601,612$ 91,690$ 9,999$ 20,000$ 2,000$ 191 17,375$ 24,064$ 53,439$ 0.03 4,654,980$
40052 FRT (no floating roof) 95 11,193 23 0.05 0.004 40,000$ -$ -$ -$ 500,000$ 13,304$ 36,000$ 2,500$ 10,000$ 601,804$ 91,719$ 10,183$ 20,000$ 2,000$ 286 17,375$ 24,072$ 53,630$ 0.05 3,107,826$
40070 FRT (no floating roof) 95 44,435 85 3.00 0.088 40,000$ -$ -$ -$ 500,000$ 168,141$ 36,000$ 2,500$ 10,000$ 756,641$ 115,318$ 158,502$ 20,000$ 2,000$ 17,968 43,644$ 30,266$ 234,412$ 2.94 119,126$
40071 FRT (no floating roof) 95 10,390 35 3.29 0.044 40,000$ -$ -$ -$ 500,000$ 196,873$ 36,000$ 2,500$ 10,000$ 785,373$ 119,697$ 186,025$ 20,000$ 2,000$ 19,748 47,910$ 31,415$ 267,350$ 3.23 119,955$
40072 FRT (no floating roof) 95 7,711 35 2.50 0.046 40,000$ -$ -$ -$ 500,000$ 125,451$ 36,000$ 2,500$ 10,000$ 713,951$ 108,812$ 117,609$ 20,000$ 2,000$ 14,991 36,507$ 28,558$ 184,675$ 2.45 119,824$
40073 EFRT 78 37,838 77 0.06 0.031 70,000$ 730,529$ 200,000$ 80,245$ 500,000$ 13,500$ 36,000$ 2,500$ 10,000$ 1,642,773$ 250,371$ 10,371$ 20,000$ 2,000$ 381 17,375$ 65,711$ 95,457$ 0.04 9,085,864$
40075 EFRT 78 27,134 108 3.01 10.312 150,000$ 730,529$ 200,000$ 80,245$ 500,000$ 169,847$ 36,000$ 2,500$ 10,000$ 1,879,120$ 286,392$ 160,136$ 20,000$ 2,000$ 18,078 40,060$ 75,165$ 277,360$ 1.81 311,736$
40076 EFRT 78 29,853 108 2.76 9.833 50,000$ 730,529$ 200,000$ 80,245$ 500,000$ 147,285$ 36,000$ 2,500$ 10,000$ 1,756,558$ 267,713$ 138,524$ 20,000$ 2,000$ 16,572 36,770$ 70,262$ 247,556$ 1.66 310,823$
40100 EFRT 80 38,539 59 3.63 8.349 150,000$ 741,124$ 200,000$ 84,413$ 500,000$ 232,459$ 45,000$ 2,500$ 10,000$ 1,965,496$ 299,557$ 220,113$ 20,000$ 2,000$ 21,771 48,126$ 78,620$ 348,859$ 2.18 297,727$
40112 FRT (no floating roof) 97 11,035 23 2.38 0.088 40,000$ -$ -$ -$ 500,000$ 116,387$ 36,000$ 2,500$ 10,000$ 704,887$ 107,430$ 108,928$ 20,000$ 2,000$ 14,290 34,829$ 28,195$ 173,952$ 2.33 120,512$
50078 EFRT 87 88,996 134 3.30 9.153 50,000$ 779,434$ 200,000$ 99,831$ 500,000$ 197,814$ 36,000$ 2,500$ 10,000$ 1,875,580$ 285,853$ 186,926$ 20,000$ 2,000$ 19,804 43,829$ 75,023$ 307,778$ 1.98 299,653$
50079 EFRT 87 59,604 134 3.29 10.191 50,000$ 779,434$ 200,000$ 99,831$ 500,000$ 196,803$ 36,000$ 2,500$ 10,000$ 1,874,569$ 285,699$ 185,958$ 20,000$ 2,000$ 19,744 43,698$ 74,983$ 306,638$ 1.98 299,909$
50113 FRT (no floating roof) 105 49,125 98 3.32 0.030 15,000$ -$ -$ -$ 500,000$ 199,519$ 36,000$ 2,500$ 10,000$ 763,019$ 116,290$ 188,559$ 20,000$ 2,000$ 19,905 48,286$ 30,521$ 269,366$ 3.25 118,583$
Tank Type Dia (ft) Throughput
(1000-gal)
Avg. Annual
Displacement
(cfm)
RY2017
Total
Emissions
(tpy)
Max
Monthly
Avg. TVP
(psia)
Initial Cleaning/
Degassing/
Sludge
Removal Costs
Capital Cost of
New Cone Roof
and Column
(Existing
EFRTs Only)
EFRT
Demolition
Lifetime Roof
Painting
(Existing
EFRTs Only),
as Capital Cost
(2024$)
Placeholder
Piping Cost
Carbon
Canister
System
Capital Cost
Ancillary
Systems
Capital
Cost
Initial Air
Permitting
Initial
Performance
Testing
Total Capital
Investment
($)
Annualized
Capital
Costs ($/yr)
Annual Carbon
Canister
O&M&I Cost
Lifetime
Recurring
Performance
Testing Cost
Annualized
Stack
Testing
Cost
Estimated
Virgin
Carbon
Usage
(lb/yr)
Annual Waste
Management
Costs ($/yr)
Annual
Property
Taxes,
Insurance,
Admin
Charges
($/yr)
Total
Operating,
Maintenance,
Indirect Costs
($/yr)
Annual
VOC
Reduction
(tpy)
Cost
Effectiveness
($/ton)
Notes: 1 2 1 1 34567891011 12 8 11 8 13, 14 15 16 17
60059 EFRT 100 66,695 74 0.54 2.386 70,000$ 855,913$ 200,000$ 131,895$ 500,000$ 22,703$ 36,000$ 2,500$ 10,000$ 1,829,011$ 278,755$ 19,187$ 20,000$ 2,000$ 3,251 17,375$ 73,160$ 111,723$ 0.33 1,200,840$
60060 EFRT 102 39,801 74 0.46 2.809 150,000$ 868,327$ 200,000$ 137,223$ 500,000$ 20,582$ 36,000$ 2,500$ 10,000$ 1,924,632$ 293,329$ 17,155$ 20,000$ 2,000$ 2,733 17,375$ 76,985$ 113,515$ 0.27 1,488,112$
60061 EFRT 102 58,188 74 0.54 4.096 70,000$ 868,327$ 200,000$ 137,223$ 500,000$ 22,572$ 36,000$ 2,500$ 10,000$ 1,846,622$ 281,439$ 19,061$ 20,000$ 2,000$ 3,220 17,375$ 73,865$ 112,301$ 0.32 1,222,432$
60062 EFRT 102 21,294 74 0.54 6.167 50,000$ 868,327$ 200,000$ 137,223$ 500,000$ 22,527$ 36,000$ 2,500$ 10,000$ 1,826,577$ 278,384$ 19,018$ 20,000$ 2,000$ 3,209 17,375$ 73,063$ 111,456$ 0.32 1,214,270$
60063 EFRT 102 78,868 74 0.65 3.233 150,000$ 868,327$ 200,000$ 137,223$ 500,000$ 25,769$ 36,000$ 2,500$ 10,000$ 1,929,819$ 294,119$ 22,124$ 20,000$ 2,000$ 3,924 17,375$ 77,193$ 118,691$ 0.39 1,051,652$
60077 EFRT 94 53,672 159 2.65 9.044 50,000$ 819,725$ 200,000$ 116,542$ 500,000$ 137,900$ 36,000$ 2,500$ 10,000$ 1,872,667$ 285,409$ 129,535$ 20,000$ 2,000$ 15,909 35,322$ 74,907$ 241,764$ 1.59 331,254$
60114 FRT (no floating roof) 120 69,325 101 4.59 0.030 15,000$ -$ -$ -$ 500,000$ 351,337$ 45,000$ 2,500$ 10,000$ 923,837$ 140,800$ 333,985$ 20,000$ 2,000$ 27,556 66,627$ 36,953$ 439,565$ 4.50 128,902$
60118 FRT (no floating roof) 120 106,787 27 4.94 0.030 15,000$ -$ -$ -$ 500,000$ 399,895$ 45,000$ 2,500$ 10,000$ 972,395$ 148,200$ 380,498$ 20,000$ 2,000$ 29,620 71,573$ 38,896$ 492,967$ 4.84 132,484$
80115 EFRT 120 95,611 159 4.81 9.951 70,000$ 988,480$ 200,000$ 189,928$ 500,000$ 381,858$ 45,000$ 2,500$ 10,000$ 2,387,766$ 363,914$ 363,220$ 20,000$ 2,000$ 28,869 63,628$ 95,511$ 524,359$ 2.89 307,584$
90116 EFRT 120 64,294 74 0.48 2.273 70,000$ 988,480$ 200,000$ 189,928$ 500,000$ 21,223$ 36,000$ 2,500$ 10,000$ 2,018,131$ 307,579$ 17,769$ 20,000$ 2,000$ 2,895 17,375$ 80,725$ 117,869$ 0.29 1,469,240$
90117 EFRT 120 27,083 74 0.29 2.432 150,000$ 988,480$ 200,000$ 189,928$ 500,000$ 17,114$ 36,000$ 2,500$ 10,000$ 2,094,022$ 319,145$ 13,833$ 20,000$ 2,000$ 1,751 17,375$ 83,761$ 116,969$ 0.18 2,490,105$
D14 EFRT 120 36 0 0.00 0.071 50,000$ 988,480$ 200,000$ 189,928$ 500,000$ 12,765$ 36,000$ 2,500$ 10,000$ 1,989,673$ 303,242$ 9,667$ 20,000$ 2,000$ 9 17,375$ 79,587$ 108,629$ 0.00 467,916,101$
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Carbon Canister Controls
Technical Notes to Support Cost Analysis
Notes:
1
2 Displacement calculated based on potential throughput from Title V application submitted in 2020.
3 Initial cleaning and degassing cost required for project implementation
Clean &
Degas
(EFRT)
Sludge
Removal/
Clean (VFRT)
Degas Only
(EFRT)
Blendstock/
Product $50,000 $15,000 $40,000
Intermediates,
Caustic, IAF Effluent $70,000 $40,000 $40,000
Crude Oil, Slop Oil,
COSC, BWON
Tanks $150,000 $120,000 $40,000
WWTP Surge Tanks $1,500,000 $1,470,000 $40,000
4
https://www.aqmd.gov/docs/default-source/rule-book/Proposed-Rules/1178/par-1178_wgm-6_v9.pdf?sfvrsn=14
Dome Installation Cost as function of tank diameter:
Cost ($) = =308149*EXP(0.0072*D)*(1+SRF)*(1*IF)
where:
D = Diameter (ft)
SRF = 30%
IF = 1.040
5 For any tank configured with an EFRT, the floating roof must be removed. Demolition cost is estimated below.
Demolition and disposal cost: 200,000$
Annual operating data based on RY2017 Air Emissions Inventory (AEI) submitted in SLEIS. Data for Tank 60118
based on RY2023 AEI because tank construction began operating in 2022 and 2023 was the first full year of
operations. Data for Tank 2111 based on RY2023 AEI due to pending resubmittals for years before that.
Estimated based on refinery-specific past
events. Historical Tank 107 cleanout (front
end of WWTP) was $1.5MM. Front end of
WWTP accumulates significant amounts of oil
due to dissolved oils in untreated wastewater.
Estimated based on refinery-specific past
events.
Estimated based on refinery-specific past
events.
Estimated based on refinery-specific past
events.
SRF = Site-specific factor developed to account for additional cost of steel cone roof and column compared to
geodesic domed roof.
Review of floating roof installation costs based on SCAQMD Proposed Rule 1178, Public Workshop #6, cost
evaluation for doming per tank, plus safety factor to account for differences between a floating geodesic that rests on
shell of tank vs steel cone roof that is supported with a column.
IF = Inflation Factor, adjusting for cost differences between 2024 and October 22, 2022. Estimated +4% for
inflation.
6
https://www.aqmd.gov/docs/default-source/rule-book/Proposed-Rules/1178/wspa-comment-letter-3.pdf?sfvrsn=6
Dome has 6:1 ratio of diameter (ft) to height (ft).
Roof Type: Geo. Dome
Diameter (ft) 180
Lifetime Cost (50 yr):
Brush/Roll applications: 345,500$
Spray Application: 444,000$
Average 394,750$
138,163$
Dome Surface Area (ft2) = =2*PI*(D/2)*H
D = 180
H = 30
Dome Surface Area (ft2) = =2*PI()*(180/2)*(30)
Dome Surface Area (ft2) = 16,965
Price per Sq Ft of Surface Area = 8.14$
Estimate Surface Area of Cone Roof as function of diameter
Height of a cone roof as a function of diameter is estimated from AP-42, Chapter 7, Equation 1-18.
Tank Roof Height (ft) = 0.0625*(D/2), when height is not known. D = diameter (ft)
Surface Area as function of diameter
Surface Area (ft2) =PI()*R*(R+SQRT(H^2+(D/2)^2))
Insert correlation for height as function of diameter, convert radius to diameter:
Surface Area (ft2) =PI()*(D/2)*((D/2)+SQRT((0.0625*(D/2))^2+(D/2)^2))
Cone Roof Painting/Maintenance Cost as a Function of Diameter:
Price per Sq Ft of Surface Area = 8.14$
Surface Area (ft2) =PI()*(D/2)*((D/2)+SQRT((0.0625*(D/2))^2+(D/2)^2))*(1*IF)
Adjust for inflation from March 2023 to 2024 by assumed +3%.
IF = 1.030
Price per Foot Tank Diameter (ft) ==8.14*PI()*(D/2)*((D/2)+SQRT((0.0625*(D/2))^2+(D/2)^2))*(1*IF)
7
Review Lifetime Cost of Painting/Maintaining a 180 ft geodesic dome roof (2023$) to estimate $/sq ft of dome surface:
Cost of painting new cone roof adapted from estimates for cost to paint/maintain geodesic dome roof, from comment
letter from Western States Petroleum Association (WSPA) to SCAQMD, dated March 1, 2023).
Case-by-case engineering is required for vapor piping, elbows, and piping support systems. Due to insufficient time
and large quantities of tanks at refinery, average estimated cost was assumed. Several tanks will require less piping
costs, several tanks will require more piping costs.
Avg 25-Yr Lifetime Cost (35% of
50 yr):
8
Tank
Displaceme
nt (acfm)
Annual
Emissions
Rate to CD
(tpy)Capital Cost
Annual Cost
($/yr, 2024$)
Virg.
Carbon
Required
(lb)
Design
specification:
30043 24 80.11 $ 4,448,541 4,258,553$ 480,528 3,000 lb canisters.
80115 159 4.81 $ 383,076 364,376$ 28,869 1,000 lb canisters.
40072 35 2.50 $ 119,809 112,201$ 14,991 200 lb canisters.
20033 49 0.82 41,837$ 37,514$ 4,925 200 lb canisters.
10085 0 0.10 7,530$ 4,652$ 594 200 lb canisters.
9 Purchase and engineering cost of ancillary systems to support carbon system evaluated as follows:
Annual Emissions Applicability (Low End) 0.00 3.50 10.00
Annual Emissions Applicability (High End)3.50 10.00 100.00
Piping Costs 5,000$ 5,000$ 10,000$
Relief Valve Costs 15,000$ 15,000$ 15,000$
Flame Arrestor Cost 15,000$ 15,000$ 15,000$
Canister Support System Cost (Small Can) 1,000$ 10,000$ 20,000$
Total Cost 36,000$ 45,000$ 60,000$
Capital cost includes: total purchased costs for all carbon adsorber canisters, auxiliary equipment, instrumentation,
sales taxes, freight, direct installation costs (installation, site preparation), and contingency costs.
Used EPA's Cost Control Manual workbook for Carbon Adsorbers. Evaluated four tanks (10085, 20033, 40072, and
80115) based on varying annual emissions and displacement rate, applied for all tanks except T30043. Used specific
estimates for T30043.
Use exponential function to estimate formulas for capital and operating cost as a function of annual emissions (tpy).
Annual cost includes maintenance costs, carbon canister installation costs, cost of canisters for replacement.
Excludes administrative charges, property taxes, insurance, and capital recovery.
Capital Cost (blue):
y = 13654x2 + 10968x + 12749
R² = 0.9978
Operating Cost (Red)
y = 13079x2 + 10507x + 9651.6
R² = 0.9978
Carbon Usage (Green)
y = 5997.9x + 0.1105
R² = 1
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
$0
$200,000
$400,000
$600,000
$800,000
$1,000,000
0.00 2.00 4.00 6.00 8.00 10.00
An
n
u
a
l
 Ca
r
b
o
n
 Us
a
g
e
 (l
b
/
y
r
)
Co
s
t
 (2
0
2
4
 Do
l
l
a
r
s
,
 $)
Annual Emissions (tpy VOC)
Carbon Canister Capital and Operating Costs (Primary Y‐Axis) 
and Carbon Usage (Secondary Y Axis)
vs. Actual Annual Emissions (X Axis)
(adapted from EPA Cost Control Manual)
10
Initial permitting cost ($) = 2,500$ /tank
11
Performance test cost ($) = 10,000$ /tank for initial test
Performance test cost ($) = 10,000$
20,000$ /tank over lifetime.
12 Capital Recovery Factor, where: 0.152
i = Prime Interest Rate = 0.085 , as fraction, effective February 13, 2024.
n = Exp. Equipment Life (yrs) = 10 Per EPA Cost Control Manual for Carbon Canisters.
13 Carbon box changeout for Tank 30043
Carbon box capacity 25,000
Annual mass of virgin carbon 480,528 lb/yr
Annual mass of spent carbon 576,666 lb/yr, mass of virgin carbon plus mass of controlled emissions
Carbon Changeouts per Year 20 changeouts/yr
3,000$
/box, site-specific estimate
575$ performed once annually, site-specific estimate
Hazardous Waste Disposal Costs
Disposal Cost $1.38 /lb, site-specific estimate.
Annual Cost 856,373.54$
14 Average carbon canister changeout and management for all other tanks
Carbon box capacity 10,000
3,000$ /yr, engineering estimate
Annual Waste Classification 575$ performed once annually, site-specific estimate
Disposal/Regeneration Cost $13,800.00 /box, site-specific estimate.
15 Property Taxes, Insurance Administrative Charges
Per EPA Cost Control Manual, Section 2.6.5.8, these are equal to 4% of total capital investment.
PTIA Costs: 4% of TCI
Annual Cost =($3000+$13,800) * [Maximum of one shipment per year or (Mass of Virgin Carbon + 10% Container
Mass) + (Annual Mass of VOC Emissions x 98% Emissions Capture)]/(10,000 lb/box)) + $575
lb/box for moderate known waste streams that do not
accumulate as quickly as larger sources of waste.
Air permitting based on $500 cost for processing cost of R307-401-12 submittal plus 40 hours at $50/hr labor rate per
tank.
Box Rental, Transportation,
Cleanout
Box Rental, Transportation,
Cleanout
Waste Classification + Labor Costs
lb/box for large known waste streams. Each box stores 20-25
cubic yards, with estimated maximum allowable weight of
27,000 lb.
=i/(1-(1+i)^(-n)), per UDAQ guidance at: https://deq.utah.gov/air-
quality/reasonably-available-control-technology-ract-process-
ozone-sip
/tank, every five years per proposed 40 CFR 60 Subpart Kc. It
is presumed that project will trigger reconstruction of the
affected facility.
Performance testing required to demonstrate compliance with BACT/SIP purposes, proposed rule 40 CFR 60 Subpart
Kc, and/or 40 CFR 63 Subpart WW - it is presumed that project costs for carbon are for a control system and are not
themselves required for the process, thus the carbon emissions controls themselves do not trigger NSPS Subpart Kc.
16 Emissions reduction realized by using carbon canisters in addition to existing configuration:
VOC Reduction Efficiency for carbon canisters:
Efficiency for VFRT: 98%
Efficiency for EFRT: 60%
17
Cost Effectiveness ($/ton) = [Annualized Capital Costs ($/yr) + Total Operating, Maintenance, Indirect Costs
($/yr)] / Annual VOC Reduction (tons/yr)
Cost Effectiveness calculation obtained from UDAQ's RACT Process webpage at: https://deq.utah.gov/air-
quality/reasonably-available-control-technology-ract-process-ozone-sip
Based on required limits for proposed rule 40 CFR 60 Subpart Kc (as published in Federal Register on October 4,
2023) for non-flare emissions controls.
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Vapor Combustion Units
Tank Type Dia (ft) Throughput
(1000-gal)
Avg. Annual
Displacement
(cfm)
RY2017 Total
Emissions
(tpy)
Max Monthly
Avg. TVP
(psia)
Initial
Cleaning/
Degassing/
Sludge
Removal
Costs
Capital Cost
of New Cone
Roof and
Column
(Existing
EFRTs Only)
Lifetime Roof
Painting
(Existing
EFRTs Only),
as Capital Cost
(2024$)
Placeholder
Piping Cost
VCU System
Capital Cost
Base
Infrastructure
Costs
Site Prep, Utility
Piping, Service
Connection
Costs
Ancillary
Systems Capital
Cost
Initial Air
Permitting
Initial
Performance
Testing
Total Capital
Investment
($)
Annualized
Capital
Costs ($/yr)
Annual VCU
O&M&I Cost
Lifetime Recurring
Performance
Testing Cost
Annualized
Recurring
Performance
Testing Costs
Annual
Property
Taxes,
Insurance,
Admin
Charges
($/yr)
Total
Operating,
Maintenance
, Indirect
Costs ($/yr)
Annual VOC
Reduction
(tpy)
Cost Effectiveness
($/ton)
Notes: 1 2 1 1 3567489101112 14 412 13 15 16
537 FRT (no floating roof) 13 40 0 0.17 4.931 120,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,122,617$ 171,095$ 93,743$ 20,000$ 2,000$ 44,905$ 140,648$ 0.17 1,849,798$
1511 EFRT 22 56 0 0.49 4.931 70,000$ 454,743$ 6,384$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,533,744$ 233,754$ 93,743$ 20,000$ 2,000$ 61,350$ 157,093$ 0.30 1,318,049$
1512 EFRT 22 113 0 0.49 4.931 70,000$ 454,743$ 6,384$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,533,744$ 233,754$ 93,743$ 20,000$ 2,000$ 61,350$ 157,093$ 0.30 1,317,074$
2111 EFRT 16 82 0 0.19 1.200 70,000$ 435,517$ 3,377$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,511,510$ 230,366$ 93,743$ 20,000$ 2,000$ 60,460$ 156,203$ 0.11 3,400,596$
3350 EFRT 40 2,181 3 0.16 1.059 150,000$ 517,668$ 21,103$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,691,388$ 257,781$ 93,743$ 20,000$ 2,000$ 67,656$ 163,399$ 0.10 4,259,990$
5038 EFRT 30 1,488 6 3.34 7.440 50,000$ 481,706$ 11,871$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,764,886$ 268,982$ 96,925$ 20,000$ 2,000$ 70,595$ 169,520$ 2.01 218,507$
5083 FRT (no floating roof) 34 5,192 13 0.07 0.044 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.07 4,174,540$
5084 FRT (no floating roof) 34 5,389 11 0.07 0.044 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.07 4,255,893$
7513 EFRT 37 2,355 8 3.76 7.440 70,000$ 506,606$ 18,056$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,815,972$ 276,768$ 96,925$ 20,000$ 2,000$ 72,639$ 171,564$ 2.25 198,933$
7539 EFRT 36 758 6 3.05 7.440 50,000$ 502,971$ 17,094$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,791,375$ 273,019$ 96,925$ 20,000$ 2,000$ 71,655$ 170,580$ 1.83 242,283$
10085 FRT (no floating roof) 48 1,142 0 0.10 0.010 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.10 3,053,616$
10086 FRT (no floating roof) 48 855 11 0.02 0.004 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.02 12,537,662$
10094 EFRT 40 327 2 1.24 9.258 70,000$ 517,668$ 21,103$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,734,390$ 264,334$ 94,644$ 20,000$ 2,000$ 69,376$ 166,020$ 0.74 578,717$
10095 EFRT 40 1,180 12 0.12 1.019 50,000$ 517,668$ 21,103$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,591,388$ 242,540$ 93,743$ 20,000$ 2,000$ 63,656$ 159,399$ 0.07 5,611,579$
15088 FRT (no floating roof) 58 4,542 30 1.26 0.046 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 1.24 259,774$
15090 FRT (no floating roof) 58 4,620 30 1.09 0.046 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 1.07 299,751$
15093 EFRT 48 966 32 1.78 8.893 70,000$ 548,361$ 30,389$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,774,368$ 270,427$ 94,644$ 20,000$ 2,000$ 70,975$ 167,619$ 1.07 409,686$
15098 FRT (no floating roof) 58 955 11 0.04 0.004 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.04 7,056,023$
15099 FRT (no floating roof) 58 1,665 5 0.10 0.009 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.10 2,905,943$
15103 EFRT 55 4,926 10 0.41 1.572 150,000$ 576,706$ 39,898$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,769,222$ 269,643$ 93,743$ 20,000$ 2,000$ 70,769$ 166,512$ 0.25 1,757,885$
15104 EFRT 55 2,180 10 0.39 1.572 150,000$ 576,706$ 39,898$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,769,222$ 269,643$ 93,743$ 20,000$ 2,000$ 70,769$ 166,512$ 0.23 1,874,590$
20015 EFRT 55 1,041 10 0.00 0.017 70,000$ 576,706$ 39,898$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,689,222$ 257,450$ 93,743$ 20,000$ 2,000$ 67,569$ 163,312$ 0.00 178,413,911$
20016 EFRT 55 4,588 10 0.02 0.042 50,000$ 576,706$ 39,898$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,669,222$ 254,402$ 93,743$ 20,000$ 2,000$ 66,769$ 162,512$ 0.01 34,411,700$
20017 EFRT 55 11,033 17 2.18 8.166 150,000$ 576,706$ 39,898$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,892,224$ 288,389$ 94,644$ 20,000$ 2,000$ 75,689$ 172,333$ 1.31 352,621$
20018 EFRT 55 6,384 50 0.50 4.169 70,000$ 576,706$ 39,898$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,812,224$ 276,197$ 94,644$ 20,000$ 2,000$ 72,489$ 169,133$ 0.30 1,481,735$
20019 EFRT 55 33,199 50 2.92 9.192 50,000$ 576,706$ 39,898$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,887,915$ 287,733$ 96,925$ 20,000$ 2,000$ 75,517$ 174,442$ 1.75 263,680$
20030 FRT (no floating roof) 67 26,949 49 0.79 0.026 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 0.78 406,217$
20031 FRT (no floating roof) 67 33,141 49 0.82 0.025 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 0.81 391,312$
20032 FRT (no floating roof) 67 32,116 49 0.80 0.025 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 0.78 405,001$
20033 FRT (no floating roof) 67 34,014 49 0.82 0.025 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 0.80 392,842$
20040 FRT (no floating roof) 67 6,735 58 0.70 0.030 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 0.69 457,945$
25108 EFRT 71 17,629 51 0.47 1.285 1,500,000$ 647,121$ 66,488$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 3,216,226$ 490,178$ 93,743$ 20,000$ 2,000$ 128,649$ 224,392$ 0.28 2,542,729$
25109 EFRT 71 11,286 51 0.40 1.401 1,500,000$ 647,121$ 66,488$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 3,216,226$ 490,178$ 93,743$ 20,000$ 2,000$ 128,649$ 224,392$ 0.24 2,951,633$
30020 EFRT 67 34,514 78 2.55 9.581 50,000$ 628,750$ 59,208$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,959,267$ 298,607$ 96,925$ 20,000$ 2,000$ 78,371$ 177,296$ 1.53 311,072$
30021 EFRT 67 35,388 78 2.46 9.099 70,000$ 628,750$ 59,208$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,883,576$ 287,072$ 94,644$ 20,000$ 2,000$ 75,343$ 171,987$ 1.48 310,764$
30022 EFRT 67 12,786 78 1.36 8.373 50,000$ 628,750$ 59,208$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,863,576$ 284,023$ 94,644$ 20,000$ 2,000$ 74,543$ 171,187$ 0.82 558,228$
30023 EFRT 67 6,369 77 0.55 1.088 70,000$ 628,750$ 59,208$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,883,576$ 287,072$ 94,644$ 20,000$ 2,000$ 75,343$ 171,987$ 0.33 1,387,147$
30024 EFRT 67 5,017 77 0.48 1.145 150,000$ 628,750$ 59,208$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,840,574$ 280,518$ 93,743$ 20,000$ 2,000$ 73,623$ 169,366$ 0.29 1,561,721$
30041 FRT (no floating roof) 82 22,997 78 1.71 0.030 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 1.68 188,350$
30042 FRT (no floating roof) 82 22,280 78 1.86 0.030 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 1.82 173,413$
30043 FRT (no floating roof) 82 6,742 24 80.11 4.453 40,000$ -$ -$ 500,000$ 418,930$ 250,000$ 50,000$ 40,000$ 4,800$ 10,000$ 1,313,730$ 200,223$ 98,946$ 20,000$ 2,000$ 52,549$ 153,495$ 78.51 4,505$
30069 FRT (no floating roof) 82 9,339 24 1.80 0.088 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 1.77 181,622$
30074 FRT (no floating roof) 82 32,496 78 2.35 0.030 15,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,140,619$ 173,839$ 94,644$ 20,000$ 2,000$ 45,625$ 142,269$ 2.31 137,129$
30080 FRT (no floating roof) 82 2,347 35 1.86 0.046 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 1.82 176,307$
30081 FRT (no floating roof) 82 6,433 30 1.10 0.046 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 1.08 298,061$
30082 FRT (no floating roof) 82 6,343 30 1.42 0.046 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 1.39 231,040$
30091 EFRT 67 36,724 59 5.33 10.799 70,000$ 628,750$ 59,208$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,979,267$ 301,656$ 96,925$ 20,000$ 2,000$ 79,171$ 178,096$ 3.20 150,094$
30092 EFRT 67 43,048 59 4.63 10.884 50,000$ 628,750$ 59,208$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,959,267$ 298,607$ 96,925$ 20,000$ 2,000$ 78,371$ 177,296$ 2.78 171,333$
30096 EFRT 67 46,203 59 3.95 10.518 50,000$ 628,750$ 59,208$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,959,267$ 298,607$ 96,925$ 20,000$ 2,000$ 78,371$ 177,296$ 2.37 200,932$
30097 EFRT 67 690 59 2.12 9.253 150,000$ 628,750$ 59,208$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,963,576$ 299,264$ 94,644$ 20,000$ 2,000$ 78,543$ 175,187$ 1.27 372,261$
30107 EFRT 80 20,182 51 0.48 1.572 1,500,000$ 690,443$ 84,413$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 3,277,473$ 499,512$ 93,743$ 20,000$ 2,000$ 131,099$ 226,842$ 0.29 2,537,252$
35110 EFRT 90 2,189 77 0.72 1.088 70,000$ 741,988$ 106,835$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,044,442$ 311,589$ 94,644$ 20,000$ 2,000$ 81,778$ 178,422$ 0.43 1,139,812$
40050 FRT (no floating roof) 95 9,299 23 0.05 0.003 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.04 6,634,602$
40051 FRT (no floating roof) 95 5,693 23 0.03 0.004 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.03 9,505,387$
40052 FRT (no floating roof) 95 11,193 23 0.05 0.004 40,000$ -$ -$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,042,617$ 158,903$ 93,743$ 20,000$ 2,000$ 41,705$ 137,448$ 0.05 6,336,495$
40070 FRT (no floating roof) 95 44,435 85 3.00 0.088 40,000$ -$ -$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,261,310$ 192,233$ 96,925$ 20,000$ 2,000$ 50,452$ 149,377$ 2.94 116,361$
40071 FRT (no floating roof) 95 10,390 35 3.29 0.044 40,000$ -$ -$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,261,310$ 192,233$ 96,925$ 20,000$ 2,000$ 50,452$ 149,377$ 3.23 105,873$
40072 FRT (no floating roof) 95 7,711 35 2.50 0.046 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 2.45 131,024$
40073 EFRT 78 37,838 77 0.06 0.031 70,000$ 680,572$ 80,245$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,833,434$ 279,429$ 93,743$ 20,000$ 2,000$ 73,337$ 169,080$ 0.04 11,783,601$
40075 EFRT 78 27,134 108 3.01 10.312 150,000$ 680,572$ 80,245$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,132,127$ 324,953$ 96,925$ 20,000$ 2,000$ 85,285$ 184,210$ 1.81 281,550$
40076 EFRT 78 29,853 108 2.76 9.833 50,000$ 680,572$ 80,245$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,032,127$ 309,712$ 96,925$ 20,000$ 2,000$ 81,285$ 180,210$ 1.66 295,532$
40100 EFRT 80 38,539 59 3.63 8.349 150,000$ 690,443$ 84,413$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,146,166$ 327,092$ 96,925$ 20,000$ 2,000$ 85,847$ 184,772$ 2.18 235,028$
40112 FRT (no floating roof) 97 11,035 23 2.38 0.088 40,000$ -$ -$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,165,619$ 177,649$ 94,644$ 20,000$ 2,000$ 46,625$ 143,269$ 2.33 137,445$
50078 EFRT 87 88,996 134 3.30 9.153 50,000$ 726,133$ 99,831$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,097,274$ 319,641$ 96,925$ 20,000$ 2,000$ 83,891$ 182,816$ 1.98 253,630$
50079 EFRT 87 59,604 134 3.29 10.191 50,000$ 726,133$ 99,831$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,097,274$ 319,641$ 96,925$ 20,000$ 2,000$ 83,891$ 182,816$ 1.98 254,401$
50113 FRT (no floating roof) 105 49,125 98 3.32 0.030 15,000$ -$ -$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,236,310$ 188,423$ 96,925$ 20,000$ 2,000$ 49,452$ 148,377$ 3.25 103,560$
Tank Type Dia (ft) Throughput
(1000-gal)
Avg. Annual
Displacement
(cfm)
RY2017 Total
Emissions
(tpy)
Max Monthly
Avg. TVP
(psia)
Initial
Cleaning/
Degassing/
Sludge
Removal
Costs
Capital Cost
of New Cone
Roof and
Column
(Existing
EFRTs Only)
Lifetime Roof
Painting
(Existing
EFRTs Only),
as Capital Cost
(2024$)
Placeholder
Piping Cost
VCU System
Capital Cost
Base
Infrastructure
Costs
Site Prep, Utility
Piping, Service
Connection
Costs
Ancillary
Systems Capital
Cost
Initial Air
Permitting
Initial
Performance
Testing
Total Capital
Investment
($)
Annualized
Capital
Costs ($/yr)
Annual VCU
O&M&I Cost
Lifetime Recurring
Performance
Testing Cost
Annualized
Recurring
Performance
Testing Costs
Annual
Property
Taxes,
Insurance,
Admin
Charges
($/yr)
Total
Operating,
Maintenance
, Indirect
Costs ($/yr)
Annual VOC
Reduction
(tpy)
Cost Effectiveness
($/ton)
Notes: 1 2 1 1 3567489101112 14 412 13 15 16
60059 EFRT 100 66,695 74 0.54 2.386 70,000$ 797,382$ 131,895$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,124,895$ 323,850$ 94,644$ 20,000$ 2,000$ 84,996$ 181,640$ 0.33 1,554,538$
60060 EFRT 102 39,801 74 0.46 2.809 150,000$ 808,947$ 137,223$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,098,787$ 319,871$ 93,743$ 20,000$ 2,000$ 83,951$ 179,694$ 0.27 1,827,261$
60061 EFRT 102 58,188 74 0.54 4.096 70,000$ 808,947$ 137,223$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,141,789$ 326,425$ 94,644$ 20,000$ 2,000$ 85,672$ 182,316$ 0.32 1,579,470$
60062 EFRT 102 21,294 74 0.54 6.167 50,000$ 808,947$ 137,223$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,121,789$ 323,377$ 94,644$ 20,000$ 2,000$ 84,872$ 181,516$ 0.32 1,572,631$
60063 EFRT 102 78,868 74 0.65 3.233 150,000$ 808,947$ 137,223$ 500,000$ 275,819$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,221,789$ 338,618$ 94,644$ 20,000$ 2,000$ 88,872$ 185,516$ 0.39 1,335,252$
60077 EFRT 94 53,672 159 2.65 9.044 50,000$ 763,668$ 116,542$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,151,520$ 327,908$ 96,925$ 20,000$ 2,000$ 86,061$ 184,986$ 1.59 322,282$
60114 FRT (no floating roof) 120 69,325 101 4.59 0.030 15,000$ -$ -$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,236,310$ 188,423$ 96,925$ 20,000$ 2,000$ 49,452$ 148,377$ 4.50 74,805$
60118 FRT (no floating roof) 120 106,787 27 4.94 0.030 15,000$ -$ -$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 1,236,310$ 188,423$ 96,925$ 20,000$ 2,000$ 49,452$ 148,377$ 4.84 69,593$
80115 EFRT 120 95,611 159 4.81 9.951 70,000$ 920,883$ 189,928$ 500,000$ 371,510$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,402,122$ 366,102$ 96,925$ 20,000$ 2,000$ 96,085$ 195,010$ 2.89 194,297$
90116 EFRT 120 64,294 74 0.48 2.273 70,000$ 920,883$ 189,928$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,183,429$ 332,771$ 93,743$ 20,000$ 2,000$ 87,337$ 183,080$ 0.29 1,781,441$
90117 EFRT 120 27,083 74 0.29 2.432 150,000$ 920,883$ 189,928$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,263,429$ 344,964$ 93,743$ 20,000$ 2,000$ 90,537$ 186,280$ 0.18 3,033,275$
D14 EFRT 120 36 0 0.00 0.071 50,000$ 920,883$ 189,928$ 500,000$ 152,817$ 250,000$ 50,000$ 35,000$ 4,800$ 10,000$ 2,163,429$ 329,723$ 93,743$ 20,000$ 2,000$ 86,537$ 182,280$ 0.00 581,674,542$
Chevron Products Company - Salt Lake Refinery
Ozone RACT: Cost Evaluation for Storage Tanks
Installation of Vapor Combustion Units
Technical Notes to Support Cost Analysis
Notes:
1
2 Displacement calculated based on potential throughput from Title V application submitted in 2020.
3 Initial cleaning and degassing cost required for project implementation:
Clean & Degas
(EFRT)
Sludge
Removal/
Clean (VFRT)
Degas Only
(EFRT)
Blendstock/
Product $50,000 $15,000 $40,000 Estimated based on refinery-specific past events.
Intermediates,
Caustic, IAF Effluent $70,000 $40,000 $40,000 Estimated based on refinery-specific past events.
Crude Oil, Slop Oil,
COSC, BWON
Tanks $150,000 $120,000 $40,000 Estimated based on refinery-specific past events.
WWTP Surge
Tanks $1,500,000 $1,470,000 $40,000
4
Tank
Displacement
(acfm)
Annual
Emissions
Rate to CD
(tpy)Capital Cost
Annual Cost
($/yr, 2024$)
Mass of Virg.
Carbon
Required (lb)
Design
specification:
Minimum
Annual
Emissions
Maximum
Annual
Emissions
30043 0 0.17 $ 418,930 98,946$ 480,528
3,000 lb
canisters.
80115 0 0.49 $ 371,510 96,925$ 28,869
1,000 lb
canisters. 2.50 10.00
30043 24 80.11 275,819$ 94,644$ 4,925
200 lb
canisters. 0.50 2.50
10085 100 0.54 152,817$ 93,743$ 594
200 lb
canisters. 0.00 0.50
5
https://www.aqmd.gov/docs/default-source/rule-book/Proposed-Rules/1178/par-1178_wgm-6_v9.pdf?sfvrsn=14
Dome Installation Cost as function of tank diameter:
Cost ($) = =308149*EXP(0.0072*D)*(1+SRF)*(1*IF)
where:
D = Diameter (ft)
SRF = 30%
IF =790.8/816.2 = 0.969
Review of floating roof installation costs based on SCAQMD Proposed Rule 1178, Public Workshop #6, cost evaluation for doming per tank, plus
safety factor to account for differences between a floating geodesic that rests on shell of tank vs steel cone roof that is supported with a column.
Assigned emissions range for applicable capital and annual costs. Based on annual emissions during RY2017, select applicable capital and
annual costs.
Annual cost includes direct annual costs (electricity, natural gas, operating labor, maintenance) and overhead. Excludes administrative charges,
property taxes, insurance, and capital recovery.
Capital cost includes: total purchase costs (thermal oxidizer, instrumentation, sales tax, freight), direct installation costs (foundations and support
handling and erection, electrical, piping, insulation for duct work, painting), indirect installation costs (engineering, construction and field
expenses, contractor fees, startup), and contingency costs.
SRF = Site-specific factor developed to account for additional cost of steel cone roof and column compared to geodesic domed roof.
Estimated based on refinery-specific past events. Historical Tank 107
cleanout (front end of WWTP) was $1.5MM. Front end of WWTP
accumulates significant amounts of oil due to dissolved oils in untreated
Used EPA's Cost Control Manual workbook for Incinerators and Oxidizers. Evaluated four tanks (10085, 20033, 80115, and 30043) based on
varying annual emissions and displacement rate, applied for all tanks except T30043. Used specific estimates for T30043.
IF = Inflation Factor, adjusting for cost differences between 2024 (Dec 2023 CEPCI = 790.8) and October 22, 2022 (date of SCAQMD
Workshop #6, October 2022 CEPCI = 816.2).
Annual operating data based on RY2017 Air Emissions Inventory (AEI) submitted in SLEIS. Data for Tank 60118 based on RY2023 AEI because
tank construction began operating in 2022 and 2023 was the first full year of operations. Data for Tank 2111 based on RY2023 AEI due to
pending resubmittals for years before that.
6
https://www.aqmd.gov/docs/default-source/rule-book/Proposed-Rules/1178/wspa-comment-letter-3.pdf?sfvrsn=6
Review Lifetime Cost of Painting/Maintaining a 180 ft geodesic dome roof (2023$) to estimate $/sq ft of dome surface:
Dome has 6:1 ratio of diameter (ft) to height (ft).
Roof Type: Geo. Dome
Diameter (ft) 180
Lifetime Cost (50 yr):
Brush/Roll applications: 345,500$
Spray Application: 444,000$
Average 394,750$
138,163$
Dome Surface Area (ft2) = =2*PI*(D/2)*H
D = 180
H = 30
Dome Surface Area (ft2) = =2*PI()*(180/2)*(30)
Dome Surface Area (ft2) = 16,965
Price per Sq Ft of Surface Area = 8.14$
Estimate Surface Area of Cone Roof as function of diameter
Height of a cone roof as a function of diameter is estimated from AP-42, Chapter 7, Equation 1-18.
Tank Roof Height (ft) = 0.0625*(D/2), when height is not known. D = diameter (ft)
Surface Area as function of diameter
Surface Area (ft2) =PI()*R*(R+SQRT(H^2+(D/2)^2))
Insert correlation for height as function of diameter, convert radius to diameter:
Surface Area (ft2) =PI()*(D/2)*((D/2)+SQRT((0.0625*(D/2))^2+(D/2)^2))
Cone Roof Painting/Maintenance Cost as a Function of Diameter:
Price per Sq Ft of Surface Area = 8.14$
Surface Area (ft2) =PI()*(D/2)*((D/2)+SQRT((0.0625*(D/2))^2+(D/2)^2))*(1*IF)
Adjust for inflation from March 2023 to 2024 by assumed +3%.
IF = 1.030
Price per Foot Tank Diameter (ft) = =8.14*PI()*(D/2)*((D/2)+SQRT((0.0625*(D/2))^2+(D/2)^2))*(1*IF)
7
8
9
Site Prep, Utility Piping, Service Connection Costs 50,000$ /tank
Site Prep, Utility Piping, Service Connection Costs based on engineering estimates and review of 2023 Marathon Moderate Ozone RACT
submittal (Page 112 of 121).
Avg 25-Yr Lifetime Cost (35% of 50
yr):
Installation of combustion device for control of tank head space vapors would require installation at a minimum of the following items regardless of
the control technology selected:
1) Vapor piping to main header or control device and vapor blower.
2) Detonation Arrestors to prevent ignition from returning to tank.
3) Pressure sensing and control instrumentation to maintain maximum and minimum pressures at each tank.
4) Proper supports and foundations to hold the vapor piping, blower(s), and electrical conduit.
5) Electrical supply infrastructure.
6) Air management for vapor combustion device.
7) There is a significant potential for cost and project delays associated with the air and construction permits that will likely be required for this type
of project. Permit issuance on average is approximately one year.
Cost considerations:
Additional evaluation would been needed to determining vapor piping sizing, required piping and support systems, underground surveying, soil
surveys, natural gas and electricity surveys, evaluation of design conditions by tank to determine design equipment sizing, etc. It is difficult to
estimate these costs individually by tank, as an effort would be more feasible when aggregated. Therefore a refinery estimate of $5 million is
assumed for aggregation of 20 tanks, equally divided between all tanks.
Case-by-case engineering is required for vapor piping, elbows, and piping support systems. Due to insufficient time and large quantities of tanks
at refinery, average estimated cost was assumed. Several tanks will require less piping costs, several tanks will require more piping costs.
Cost of painting new cone roof adapted from estimates for cost to paint/maintain geodesic dome roof, from comment letter from Western States
Petroleum Association (WSPA) to SCAQMD, dated March 1, 2023).
10 Purchase and engineering cost of ancillary systems to support VCU evaluated as follows:
Annual Emissions Applicability (Low End) 0.00 3.50 10.00
Annual Emissions Applicability (High End)3.50 10.00 100.00
Piping Costs 5,000$ 5,000$ 10,000$
Relief Valve Costs 15,000$ 15,000$ 15,000$
Flame Arrestor Cost 15,000$ 15,000$ 15,000$
Total Cost 35,000$ 35,000$ 40,000$
11 Air permitting based on $2800 cost for processing cost of R307-401-5 NOI submittal plus 40 hours at $50/hr labor rate per tank.
Initial permitting cost ($) = 4,800$ /tank
12
Performance test cost ($) = 10,000$ /tank for initial test
Performance test cost ($) = 10,000$
Performance test cost ($) = 20,000$ /tank over lifetime.
13 Property Taxes, Insurance Administrative Charges
Per EPA Cost Control Manual, Section 2.6.5.8, these are equal to 4% of total capital investment.
PTIA Costs: 4% of TCI
14 Capital Recovery Factor, where: 0.152
i = Prime Interest Rate = 0.085 , as fraction, effective February 13, 2024.
n = Exp. Equipment Life (yrs) = 10 Per EPA Cost Control Manual for Carbon Canisters.
15 Emissions reduction realized by using VCU in addition to existing configuration:
Efficiency for VFRT: 98%
Efficiency for EFRT: 60%
16
Cost Effectiveness ($/ton) =
/tank, every five years per proposed 40 CFR 60 Subpart Kc. It is presumed that project
will trigger reconstruction of the affected facility.
Performance testing required to demonstrate compliance with BACT/SIP purposes, proposed rule 40 CFR 60 Subpart Kc, and/or 40 CFR 63
Subpart WW - it is presumed that project costs for carbon are for a control system and are not themselves required for the process, thus the
[Annualized Capital Costs ($/yr) + Total Operating, Maintenance, Indirect Costs ($/yr)] / Annual VOC
Reduction (tons/yr)
Cost Effectiveness calculation obtained from UDAQ's RACT Process webpage at: https://deq.utah.gov/air-quality/reasonably-available-control-
technology-ract-process-ozone-sip
Based on required limits for proposed rule 40 CFR 60 Subpart Kc (as published in Federal Register on October 4, 2023) for non-flare emissions
controls.
=i/(1-(1+i)^(-n)), per UDAQ guidance at: https://deq.utah.gov/air-quality/reasonably-
available-control-technology-ract-process-ozone-sip