DAQ-2024-004988

DAQE-AN117810003-24

{{$d1 }}

Kevin Bruder
West Valley City
3600 South Constitution Boulevard
West Valley City, UT 84119
[e-mail]

Dear Mr. Bruder:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-1165-96 dated
December 31, 1996 for a 10-year Review and Permit Updates
Project Number: N117810003

The attached Approval Order (AO) is issued pursuant to the Division of Air Quality conducting a
10-year administrative review of this source and its respective AO. West Valley City must comply
with the requirements of this AO, all applicable state requirements (R307), and Federal Standards.

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

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:JP:jg

cc: Salt Lake County Health Department

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

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

February 7, 2024

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

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

APPROVAL ORDER
DAQE-AN117810003-24 Administrative Amendment to Approval
Order DAQE-1165-96 dated December 31, 1996
for a 10-year Review and Permit Updates

Prepared By
John Persons, Engineer
[phone]
[e-mail]

Issued to
West Valley City - West Valley Event Center

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

February 7, 2024
TABLE OF CONTENTS

TITLE/SIGNATURE PAGE ....................................................................................................... 1
GENERAL INFORMATION ...................................................................................................... 3
CONTACT/LOCATION INFORMATION ............................................................................... 3
SOURCE INFORMATION ........................................................................................................ 3
General Description ................................................................................................................ 3
NSR Classification .................................................................................................................. 3
Source Classification .............................................................................................................. 3
Applicable Federal Standards ................................................................................................. 3
Project Description.................................................................................................................. 3
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 4
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 5
PERMIT HISTORY ..................................................................................................................... 8
ACRONYMS ................................................................................................................................. 9

DAQE-AN117810003-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
West Valley City West Valley City - West Valley Event Center

Mailing Address Physical Address
3600 South Constitution Boulevard 3200 South Decker Lake Drive
West Valley City, UT 84119 West Valley City, UT 84119

Source Contact UTM Coordinates
Name: Kevin Bruder 419,715 m Easting
Phone: [phone],506,149 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12

SIC code 7299 (Miscellaneous Personal Services, NEC)

SOURCE INFORMATION
General Description
West Valley City owns and operates the West Valley Event Center. The event center consists of boilers
and an emergency generator engine. The event center (also known as the Maverik Center) is used to host
a variety of events and concerts.

NSR Classification
10-Year Review

Source Classification
Located in Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA, Salt Lake County SO2
NAA
Salt Lake County
Airs Source Size: B

Applicable Federal Standards
MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines

Project Description
This project is a 10-year review of Approval Order DAQE-1165-96 dated December 31, 1996.

DAQE-AN117810003-24
Page 4

SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
Carbon Monoxide 0 8.21
Nitrogen Oxides 0 11.29
Particulate Matter - PM10 0 1.80
Particulate Matter - PM2.5 0 1.80
Sulfur Dioxide 0 0.69
Volatile Organic Compounds 0 1.64

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 0 280
Change (TPY) Total (TPY)
Total HAPs 0 0.14

SECTION I: GENERAL PROVISIONS

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

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

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

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

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

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

DAQE-AN117810003-24
Page 5

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

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Event Center

II.A.2 One (1) 5.5 MMBtu.hr Natural Gas-Fired Boiler
Manufacturer: Bryan
Model: RV550W-FDG
Control: Low-NOx Burner

II.A.3 Two (2) 8.5 MMBtu/hr Natural Gas-Fired Boilers
Manufacturer: Bryan
Model: RW850W-FDG
Control: Low-NOx Burner

II.A.4 One (1) Diesel-Fired Emergency Generator Engine
Manufacturer: Kohler
Rating: 750 kW (<1010 hp)

SECTION II: SPECIAL PROVISIONS

II.B REQUIREMENTS AND LIMITATIONS

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

A. Boilers - 10% opacity

B. Generator - 20% opacity

C. All other points - 20% opacity.

[R307-401-8]

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

II.B.1.b The owner/operator shall keep a copy of this AO onsite at all times the facility is in operation.
[R307-401-8]

II.B.2 Fugitive Dust Requirements
II.B.2.a The owner/operator shall not allow visible emissions from haul roads and fugitive dust sources
on-site to exceed 20% opacity on site and 10% opacity at the property boundary.
[R307-309-5, R307-401-8]

DAQE-AN117810003-24
Page 6

II.B.2.a.1 Opacity observations of fugitive dust from intermittent sources shall be conducted according to
40 CFR 60, Appendix A, Method 9; however, the requirement for observations to be made at
15-second intervals over a six-minute period shall not apply. The number of observations and
the time period shall be determined by the length of the intermittent source.
[R307-309-5, R307-401-8]

II.B.2.b The owner/operator shall comply with all applicable requirements of UAC R307-309-6 for
Fugitive Dust Control. [R307-309-6, R307-401-8]

II.B.2.c The owner/operator shall operate in accordance with a fugitive dust control plan (FDCP).
[R307-309-6, R307-401-8]

II.B.2.d The owner/operator shall control fugitive emissions from disturbed areas through the use of
water spraying and chemical treatments in order to meet the opacity limits listed in this AO.
[R307-401-8]

II.B.2.e The owner/operator shall control fugitive dust from disturbed or stripped areas at all times (24
hours per day every day) for the duration of the operation until the area is reclaimed.
[R307-401-8]

II.B.3 Stack Testing Requirements
II.B.3.a The owner/operator shall not emit more than the following rates and concentrations from the
following emissions units:

Boiler B-1:
Pollutant lb/hr ppmdv
NOx 0.2084 30

Boilers B-2 and B-3:

Pollutant lb/hr ppmdv
NOx 0.3221 30

Concentration (ppmdv) is corrected to 3% oxygen, dry basis.

[R307-401-8]

II.B.3.b Standard Conditions

A. Temperature - 68 degrees Fahrenheit (293 K)

B. Pressure - 29.92 in Hg (101.3 kPa)

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

[R307-401-8]

II.B.3.b.1 Compliance Demonstration
To demonstrate compliance with the emission limitations above, the owner/operator shall
perform stack testing on the emissions unit according to the stack testing conditions contained
in this AO. [R307-401-8]

II.B.3.b.2 Test Frequency
The owner/operator shall conduct a stack test on the emission unit as directed. The Director may
require the owner/operator to perform a stack test at any time. [R307-401-8]

DAQE-AN117810003-24
Page 7

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

II.B.4.a.1 Testing & Test Conditions
The owner/operator shall conduct testing according to the approved source test protocol and
according to the test conditions contained in R307-165-4. [R307-165-4, R307-401-8]

II.B.4.a.2 Access
The owner/operator shall provide Occupational Safety and Health Administration (OSHA)- or
Mine Safety and Health Administration (MSHA)-approved access to the test location.
[R307-401-8]

II.B.4.a.3 Reporting
No later than 60 days after completing a stack test, the owner/operator shall submit a written
report of the results from the stack testing to the Director. The report shall include validated
results and supporting information. [R307-165-5, R307-401-8]

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

II.B.4.a.5 Test Methods
When performing stack testing, the owner/operator shall use the appropriate EPA-approved
test methods as acceptable to the Director. Acceptable test methods for pollutants are listed
below. [R307-401-8]

II.B.4.a.6 NOx
40 CFR 60, Appendix A, Method 7; Method 7E; or other EPA-approved testing method as
acceptable to the Director. [R307-401-8]

II.B.5 Emergency Engine Requirements
II.B.5.a The owner/operator shall not operate the emergency engine for more than 100 hours per rolling
12-month period during non-emergency situations. There is no time limit on the use of the
engine during emergencies. [40 CFR 60 Subpart ZZZZ, R307-401-8]

II.B.5.a.1 To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new
12-month total by the 20th day of each month using data from the previous 12 months. Records
documenting the operation of each emergency engine shall be kept in a log and shall include the
following:

A. The date the emergency engine was used

B. The duration of operation in hours

C. The reason for the emergency engine usage.

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

II.B.5.a.2 To determine the duration of operation, the owner/operator shall install a non-resettable hour
meter on the emergency engine. [40 CFR 60 Subpart ZZZZ, R307-401-8]

DAQE-AN117810003-24
Page 8

II.B.5.b The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives) as
fuel in the emergency engine. [R307-401-8]

II.B.5.c The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur
diesel (ULSD), which has a sulfur content of 15 ppm or less.
[40 CFR 63 Subpart ZZZZ, R307-401-8]

II.B.5.c.1 To demonstrate compliance with the ULSD fuel requirement, the owner/operator shall maintain
records of diesel fuel purchase invoices or obtain certification of sulfur content from the diesel
fuel supplier. The diesel fuel purchase invoices shall indicate that the diesel fuel meets the
ULSD requirements. [40 CFR 63 Subpart ZZZZ, R307-401-8]

PERMIT HISTORY

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

Replaces AO DAQE-1165-96 dated December 31, 1996
Incorporates Additional Information dated May 24, 2023

DAQE-AN117810003-24
Page 9

ACRONYMS

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

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

DAQE-

RN117810003
November 28, 2023

Kevin Bruder
West Valley City
3600 S. Constitution Blvd
West Valley City, UT 84119
[e-mail]

Dear Kevin Bruder,

Re: Engineer Review - 10-Year Review and Permit Updates:
Administrative Amendment to Approval Order DAQE-1165-96 dated December 31, 1996, for a
10-year Review and Permit Updates
Project Number: N117810003

The DAQ requests a company representative review and sign the attached Engineer Review (ER). This
ER identifies all applicable elements of the New Source Review (NSR) permitting program. West Valley
City should complete this review within 10 business days of receipt.

West Valley City should contact John Persons at [phone] if there are questions or concerns with
the review of the draft permit conditions. Upon resolution of your concerns, please email John Persons at
[e-mail] the signed cover letter. Upon receipt of the signed cover letter, the DAQ will
prepare an Approval Order (AO) for signature by the DAQ Director.

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

Approval Signature _____________________________________________________________
(Signature & Date)

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

Kimberly D. Shelley Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird Director

State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 1
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION

Project Number N117810003
Owner Name West Valley City
Mailing Address 3600 S. Constitution Blvd
West Valley City, UT, 84119

Source Name West Valley City- West Valley Event Center
Source Location 3200 South Decker Lake Drive
West Valley City, UT 84119

UTM Projection 419,715 m Easting, 4,506,149 m Northing
UTM Datum NAD83
UTM Zone UTM Zone 12
SIC Code 7299 (Miscellaneous Personal Services, NEC)

Source Contact Kevin Bruder
Phone Number [phone]
Email [e-mail]

Billing Contact Kevin Bruder
Phone Number [phone]
Email [e-mail]

Project Engineer John Persons, Engineer
Phone Number [phone]
Email [e-mail]

Notice of Intent (NOI) Submitted May 24, 2023
Date of Accepted Application May 30, 2023

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 2
SOURCE DESCRIPTION

General Description
West Valley City owns and operates the West Valley Event Center. The event center consists of
boilers and an emergency generator engine. The event center (also known as the Maverik Center)
is used to host a variety of events and concerts.

NSR Classification:
10 Year Review

Source Classification
Located in the Northern Wasatch Front O3 NAA, Salt Lake City UT PM2.5 NAA, and Salt Lake
County SO2 NAA
Salt Lake County
Airs Source Size: B

Applicable Federal Standards
MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines

Project Proposal
Administrative Amendment to Approval Order DAQE-1165-96 dated December 31, 1996, for a
10-year Review and Permit Updates

Project Description
This project is a 10-year review of Approval Order DAQE-1165-96 dated December 31, 1996.

EMISSION IMPACT ANALYSIS
This is a 10-Year Review. No changes to equipment or emissions are being made at this time. Therefore, a
modeling analysis is not required. [Last updated June 13, 2023]

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 3
SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
Carbon Monoxide 0 8.21
Nitrogen Oxides 0 11.29
Particulate Matter - PM10 0 1.80
Particulate Matter - PM2.5 0 1.80
Sulfur Dioxide 0 0.69
Volatile Organic Compounds 0 1.64

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Acetaldehyde (CAS #75070) 0 280
Change (TPY) Total (TPY)
Total HAPs 0 0.14

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

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 4
Review of BACT for New/Modified Emission Units

1. BACT review regarding 10-Year Review
This is a 10-Year Review. No changes to equipment or emissions are being made at this time.
Therefore, a BACT analysis is not required. [Last updated June 13, 2023]

SECTION I: GENERAL PROVISIONS

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

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

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

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

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

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

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

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

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 5
SECTION II: PERMITTED EQUIPMENT
The intent is to issue an air quality AO authorizing the project with the following recommended
conditions and that failure to comply with any of the conditions may constitute a violation of the
AO. (New or Modified conditions are indicated as “New” in the Outline Label):

II.A THE APPROVED EQUIPMENT

II.A.1
NEW
Event Center

II.A.2
NEW
One (1) 5.5 MMBtu.hr Natural Gas-Fired Boiler
Manufacturer: Bryan
Model: RV550W-FDG
Control: Low-NOx Burner

II.A.3
NEW
Two (2) 8.5 MMBtu/hr Natural Gas-Fired Boilers
Manufacturer: Bryan
Model: RW850W-FDG
Control: Low-NOx Burner

II.A.4
NEW
One (1) Diesel-Fired Emergency Generator Engine
Manufacturer: Kohler
Rating: 750 kW (<1010 hp)

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

II.B REQUIREMENTS AND LIMITATIONS

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

A. Boilers - 10% opacity

B. Generator - 20% opacity

C. All other points - 20% opacity. [R307-401-8]

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

II.B.1.b
NEW
The owner/operator shall keep a copy of this Approval Order (AO) onsite at all times the
facility is in operation. [R307-401-8]

II.B.2
NEW
Fugitive Dust Requirements

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 6
II.B.2.a
NEW
The owner/operator shall not allow visible emissions from haul roads and fugitive dust
sources on-site to exceed 20% opacity on site and 10% opacity at the property boundary.
[R307-309, R307-401-8]

II.B.2.b
NEW
Opacity observations of fugitive dust from intermittent sources shall be conducted according
to 40 CFR 60, Appendix A, Method 9; however, the requirement for observations to be made
at 15-second intervals over a six-minute period shall not apply. The number of observations
and the time period shall be determined by the length of the intermittent source. [R307-309,
R307-401-8]

II.B.2.c
NEW
The owner/operator shall comply with all applicable requirements of UAC R307-309-6 for
Fugitive Dust Control. [R307-309, R307-401-8]

II.B.2.d
NEW
The owner/operator shall operate in accordance with a fugitive dust control plan (FDCP).
[R307-309-6, R307-401-8]

II.B.2.e
NEW
The owner/operator shall control fugitive emissions from disturbed areas through the use of
water spraying and chemical treatments in order to meet the opacity limits listed in this AO.
[R307-401-8]

II.B.2.f
NEW
The owner/operator shall control fugitive dust from disturbed or stripped areas at all times (24
hours per day every day) for the duration of the operation until the area is reclaimed. [R307-
401-8]

II.B.3
NEW
Emergency Engine Requirements
II.B.3.a
NEW
The owner/operator shall not operate the emergency engine for more than 100 hours per
rolling 12-month period during non-emergency situations. There is no time limit on the use of
the engine during emergencies. [40 CFR 60 Subpart ZZZZ, R307-401-8]

II.B.3.a.1
NEW
To determine compliance with a rolling 12-month total, the owner/operator shall calculate a
new 12-month total by the 20th day of each month using data from the previous 12 months.
Records documenting the operation of each emergency engine shall be kept in a log and shall
include the following:

A. The date the emergency engine was used

B. The duration of operation in hours

C. The reason for the emergency engine usage. [40 CFR 60 Subpart ZZZZ, R307-401-8]

II.B.3.a.2
NEW
To determine the duration of operation, the owner/operator shall install a non-resettable hour
meter on the emergency engine. [40 CFR 60 Subpart ZZZZ, R307-401-8]

II.B.3.b
NEW
The owner/operator shall only use diesel fuel (e.g. fuel oil #1, #2, or diesel fuel oil additives)
as fuel in the emergency engine. [R307-401-8]

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 7
II.B.3.c
NEW
The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur
diesel (ULSD), which has a sulfur content of 15 ppm or less. [40 CFR 63 Subpart ZZZZ,
R307-401-8]

II.B.3.c.1
NEW
To demonstrate compliance with the ULSD fuel requirement, the owner/operator shall
maintain records of diesel fuel purchase invoices or obtain certification of sulfur content from
the diesel fuel supplier. The diesel fuel purchase invoices shall indicate that the diesel fuel
meets the ULSD requirements. [40 CFR 63 Subpart ZZZZ, R307-401-8]

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 8
PERMIT HISTORY

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

Replaces AO DAQE-1165-96 dated December 31, 1996
Incorporates Additional Information dated May 24, 2023

REVIEWER COMMENTS

1. Comment regarding Emissions Updates and Condition Changes:
During this 10-year review the emissions for PM2.5 were estimated for this AO. The PM2.5 emissions
were conservatively estimated to be equal PM10 emissions.

Also, during the source of this 10-Year review the stack testing conditions were removed from this
permit. According to the source and the DAQ's compliance department the equipment onsite never
gets stack tested and the conditions are not needed in the permit. [Last updated November 28, 2023]

2. Comment regarding NSPS and MACT Applicability :
This source is subject to 40 CFR 63 (MACT) Subpart ZZZZ.

40 CFR 63 Subpart ZZZZ applies to owners and operators of stationary RICEs at major or area
sources of HAP emissions. This source operates a RICE and is an area source of HAP emissions.
Therefore, Subpart ZZZZ applies to this source.

Non-applicability of 40 CFR 63 Subpart JJJJJJ and 40 CFR 60 Subparts Dc and IIII.

40 CFR 63 MACT Subpart JJJJJJ applies to industrial, commercial, or institutional boilers located at
an area source of HAP emissions. The boilers on site are considered institutional boilers and gas-
fired boilers as defined in 40 CFR 63.11237. A gas fired boiler burns only gaseous fuels during
normal operation and burns liquid fuel only during periods of gas curtailment, gas supply
interruption, startups, or periodic testing on liquid fuel. Periodic testing of liquid fuel shall not
exceed a combined total of 48 hours during any calendar year. 40 CFR 63.11195 exempts gas-fired
boilers from the applicability and requirements of MACT Subpart JJJJJJ; therefore, MACT Subpart
JJJJJJ does not apply to the boilers on site.

40 CFR 60 (NSPS) Subpart Dc applies to natural gas-fired boilers rated between 10 MMBtu/hr and
100 MMBtu/hr. This source operates three (3) natural gas-fired boilers but all of them are rated at
less than 10 MMBtu/hr. Therefore, Subpart Dc does not apply to this source.

40 CFR (NSPS) Subpart IIII applies to owners and operators of compression ignition internal
combustion engines (CI ICE) that were manufactured after April 1, 2006. This source operates a CI
ICE but it was manufactured prior to that date. Therefore, Subpart IIII does not apply to this source.
[Last updated November 28, 2023]

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

1. Any major source

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 9
2. Any source subject to a standard, limitation, or other requirement under Section 111 of the Act,
Standards of Performance for New Stationary Sources;
3. Any source subject to a standard or other requirement under Section 112 of the Act, Hazardous
Air Pollutants.
4. Any Title IV affected source.

This source is not a major source or a Title V affected source. This source is not subject to NSPS or
NESHAP requirements. This source is subject to 40 CFR 63 (MACT) Subpart ZZZZ. However,
Subpart ZZZZ exempts a source from having to obtain a Title V permit if there is no other reason the
source would be required to do so. Because there is no other reason that this source would have to
obtain a Title V permit, Title V will not apply to this source. [Last updated June 13, 2023]

Engineer Review N117810003: West Valley City- West Valley Event Center
November 28, 2023
Page 10
ACRONYMS
The following lists commonly used acronyms and associated translations as they apply to this
document:
40 CFR Title 40 of the Code of Federal Regulations
AO Approval Order
BACT Best Available Control Technology
CAA Clean Air Act
CAAA Clean Air Act Amendments
CDS Classification Data System (used by EPA to classify sources by size/type)
CEM Continuous emissions monitor
CEMS Continuous emissions monitoring system
CFR Code of Federal Regulations
CMS Continuous monitoring system
CO Carbon monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent - 40 CFR Part 98, Subpart A, Table A-1
COM Continuous opacity monitor
DAQ/UDAQ Division of Air Quality
DAQE This is a document tracking code for internal UDAQ use
EPA Environmental Protection Agency
FDCP Fugitive dust control plan
GHG Greenhouse Gas(es) - 40 CFR 52.21 (b)(49)(i)
GWP Global Warming Potential - 40 CFR Part 86.1818-12(a)
HAP or HAPs Hazardous air pollutant(s)
ITA Intent to Approve
LB/HR Pounds per hour
LB/YR Pounds per year
MACT Maximum Achievable Control Technology
MMBTU Million British Thermal Units
NAA Nonattainment Area
NAAQS National Ambient Air Quality Standards
NESHAP National Emission Standards for Hazardous Air Pollutants
NOI Notice of Intent
NOx Oxides of nitrogen
NSPS New Source Performance Standard
NSR New Source Review
PM10 Particulate matter less than 10 microns in size
PM2.5 Particulate matter less than 2.5 microns in size
PSD Prevention of Significant Deterioration
PTE Potential to Emit
R307 Rules Series 307
R307-401 Rules Series 307 - Section 401
SO2 Sulfur dioxide
Title IV Title IV of the Clean Air Act
Title V Title V of the Clean Air Act
TPY Tons per year
UAC Utah Administrative Code
VOC Volatile organic compounds

Equipment Details
Rating 6 MMBtu/hour
Operational Hours 8,760 hours/year
Firing Normal
Criteria Pollutant
Concentration
(ppm)
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
NOX 100 0.54 2.38
CO 84 0.46 2.00
PM10 7.6 0.04 0.18
PM2.5 7.6 0.04 0.18
SO2 0.6 0.00 0.01
VOC 5.5 0.03 0.13
Lead 0.0005 0.00 0.00
HAP 0.01 0.05 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 653 2,860
Methane (mass basis)25 2.3 0.01 0.05
N2O (mass basis)298 2.2 0.01 0.05
CO2e 2,877
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
2-Methylnaphthalene 2.40E-05 1.31E-07 5.72E-07
3-Methylchloranthrene 1.80E-06 9.79E-09 4.29E-08
7,12-Dimethylbenz(a)anthracene 1.60E-05 8.71E-08 3.81E-07
Acenaphthene 1.80E-06 9.79E-09 4.29E-08
Acenaphthylene 1.80E-06 9.79E-09 4.29E-08
Anthracene 2.40E-06 1.31E-08 5.72E-08
Benz(a)anthracene 1.80E-06 9.79E-09 4.29E-08
Benzene 2.10E-03 1.14E-05 5.00E-05
Benzo(a)pyrene 1.20E-06 6.53E-09 2.86E-08
Benzo(b)fluoranthene 1.80E-06 9.79E-09 4.29E-08
Benzo(g,h,i)perylene 1.20E-06 6.53E-09 2.86E-08
Benzo(k)fluoranthene 1.80E-06 9.79E-09 4.29E-08
Chrysene 1.80E-06 9.79E-09 4.29E-08
Dibenzo(a,h)anthracene 1.20E-06 6.53E-09 2.86E-08
Dichlorobenzene 1.20E-03 6.53E-06 2.86E-05
Fluoranthene 3.00E-06 1.63E-08 7.15E-08
Fluorene 2.80E-06 1.52E-08 6.67E-08
Formaldehyde 7.50E-02 4.08E-04 1.79E-03
Hexane 1.80E+00 9.79E-03 4.29E-02
Indeno(1,2,3-cd)pyrene 1.80E-06 9.79E-09 4.29E-08
Naphthalene 6.10E-04 3.32E-06 1.45E-05
Phenanathrene 1.70E-05 9.25E-08 4.05E-07
Pyrene 5.00E-06 2.72E-08 1.19E-07
Toluene 3.40E-03 1.85E-05 8.10E-05
Arsenic 2.00E-04 1.09E-06 4.77E-06
Beryllium 1.20E-05 6.53E-08 2.86E-07
Cadmium 1.10E-03 5.99E-06 2.62E-05
Chromium 1.40E-03 7.62E-06 3.34E-05
Cobalt 8.40E-05 4.57E-07 2.00E-06
Manganese 3.80E-04 2.07E-06 9.06E-06
Mercury 2.60E-04 1.41E-06 6.20E-06
Nickel 2.10E-03 1.14E-05 5.00E-05
Selenium 2.40E-05 1.31E-07 5.72E-07
AP-42 Table 1.4-4
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
Natural Gas-Fired Boilers & Heaters
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
AP-42 Table 1.4-3
Emission Factor
(lb/10^6 scf)
Page 1 of 4
Version 1.0
November 29, 2018
Equipment Details
Rating 9 MMBtu/hour
Operational Hours 8,760 hours/year
Firing Normal
Criteria Pollutant
Concentration
(ppm)
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
NOX 100 0.83 3.65
CO 84 0.70 3.07
PM10 7.6 0.06 0.28
PM2.5 7.6 0.06 0.28
SO2 0.6 0.01 0.02
VOC 5.5 0.05 0.20
Lead 0.0005 0.00 0.00
HAP 0.02 0.07 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 1,000 4,380
Methane (mass basis)25 2.3 0.02 0.08
N2O (mass basis)298 2.2 0.02 0.08
CO2e 4,406
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
2-Methylnaphthalene 2.40E-05 2.00E-07 8.76E-07
3-Methylchloranthrene 1.80E-06 1.50E-08 6.57E-08
7,12-Dimethylbenz(a)anthracene 1.60E-05 1.33E-07 5.84E-07
Acenaphthene 1.80E-06 1.50E-08 6.57E-08
Acenaphthylene 1.80E-06 1.50E-08 6.57E-08
Anthracene 2.40E-06 2.00E-08 8.76E-08
Benz(a)anthracene 1.80E-06 1.50E-08 6.57E-08
Benzene 2.10E-03 1.75E-05 7.67E-05
Benzo(a)pyrene 1.20E-06 1.00E-08 4.38E-08
Benzo(b)fluoranthene 1.80E-06 1.50E-08 6.57E-08
Benzo(g,h,i)perylene 1.20E-06 1.00E-08 4.38E-08
Benzo(k)fluoranthene 1.80E-06 1.50E-08 6.57E-08
Chrysene 1.80E-06 1.50E-08 6.57E-08
Dibenzo(a,h)anthracene 1.20E-06 1.00E-08 4.38E-08
Dichlorobenzene 1.20E-03 1.00E-05 4.38E-05
Fluoranthene 3.00E-06 2.50E-08 1.10E-07
Fluorene 2.80E-06 2.33E-08 1.02E-07
Formaldehyde 7.50E-02 6.25E-04 2.74E-03
Hexane 1.80E+00 1.50E-02 6.57E-02
Indeno(1,2,3-cd)pyrene 1.80E-06 1.50E-08 6.57E-08
Naphthalene 6.10E-04 5.08E-06 2.23E-05
Phenanathrene 1.70E-05 1.42E-07 6.21E-07
Pyrene 5.00E-06 4.17E-08 1.83E-07
Toluene 3.40E-03 2.83E-05 1.24E-04
Arsenic 2.00E-04 1.67E-06 7.30E-06
Beryllium 1.20E-05 1.00E-07 4.38E-07
Cadmium 1.10E-03 9.17E-06 4.02E-05
Chromium 1.40E-03 1.17E-05 5.11E-05
Cobalt 8.40E-05 7.00E-07 3.07E-06
Manganese 3.80E-04 3.17E-06 1.39E-05
Mercury 2.60E-04 2.17E-06 9.49E-06
Nickel 2.10E-03 1.75E-05 7.67E-05
Selenium 2.40E-05 2.00E-07 8.76E-07
AP-42 Table 1.4-4
Natural Gas-Fired Boilers & Heaters
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
Emission Factor
(lb/10^6 scf)
AP-42 Table 1.4-3
Page 2 of 4
Version 1.0
November 29, 2018
Equipment Details
Rating 9 MMBtu/hour
Operational Hours 8,760 hours/year
Firing Normal
Criteria Pollutant
Concentration
(ppm)
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
NOX 100 0.83 3.65
CO 84 0.70 3.07
PM10 7.6 0.06 0.28
PM2.5 7.6 0.06 0.28
SO2 0.6 0.01 0.02
VOC 5.5 0.05 0.20
Lead 0.0005 0.00 0.00
HAP 0.02 0.07 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 1,000 4,380
Methane (mass basis)25 2.3 0.02 0.08
N2O (mass basis)298 2.2 0.02 0.08
CO2e 4,406
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
2-Methylnaphthalene 2.40E-05 2.00E-07 8.76E-07
3-Methylchloranthrene 1.80E-06 1.50E-08 6.57E-08
7,12-Dimethylbenz(a)anthracene 1.60E-05 1.33E-07 5.84E-07
Acenaphthene 1.80E-06 1.50E-08 6.57E-08
Acenaphthylene 1.80E-06 1.50E-08 6.57E-08
Anthracene 2.40E-06 2.00E-08 8.76E-08
Benz(a)anthracene 1.80E-06 1.50E-08 6.57E-08
Benzene 2.10E-03 1.75E-05 7.67E-05
Benzo(a)pyrene 1.20E-06 1.00E-08 4.38E-08
Benzo(b)fluoranthene 1.80E-06 1.50E-08 6.57E-08
Benzo(g,h,i)perylene 1.20E-06 1.00E-08 4.38E-08
Benzo(k)fluoranthene 1.80E-06 1.50E-08 6.57E-08
Chrysene 1.80E-06 1.50E-08 6.57E-08
Dibenzo(a,h)anthracene 1.20E-06 1.00E-08 4.38E-08
Dichlorobenzene 1.20E-03 1.00E-05 4.38E-05
Fluoranthene 3.00E-06 2.50E-08 1.10E-07
Fluorene 2.80E-06 2.33E-08 1.02E-07
Formaldehyde 7.50E-02 6.25E-04 2.74E-03
Hexane 1.80E+00 1.50E-02 6.57E-02
Indeno(1,2,3-cd)pyrene 1.80E-06 1.50E-08 6.57E-08
Naphthalene 6.10E-04 5.08E-06 2.23E-05
Phenanathrene 1.70E-05 1.42E-07 6.21E-07
Pyrene 5.00E-06 4.17E-08 1.83E-07
Toluene 3.40E-03 2.83E-05 1.24E-04
Arsenic 2.00E-04 1.67E-06 7.30E-06
Beryllium 1.20E-05 1.00E-07 4.38E-07
Cadmium 1.10E-03 9.17E-06 4.02E-05
Chromium 1.40E-03 1.17E-05 5.11E-05
Cobalt 8.40E-05 7.00E-07 3.07E-06
Manganese 3.80E-04 3.17E-06 1.39E-05
Mercury 2.60E-04 2.17E-06 9.49E-06
Nickel 2.10E-03 1.75E-05 7.67E-05
Selenium 2.40E-05 2.00E-07 8.76E-07
AP-42 Table 1.4-4
Natural Gas-Fired Boilers & Heaters
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
Emission Factor
(lb/10^6 scf)
AP-42 Table 1.4-3
Page 3 of 4
Version 1.0
November 29, 2018
Equipment Details
Rating 1,010 hp = (753.8 kw)
Operational Hours 100 hours/year
Sulfur Content 15 ppm or 0.0015%
Criteria Pollutant
Emission
Standards
(g/hp-hr)
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
NOX 0.024 24.24 1.21
CO 5.50E-03 5.56 0.28
PM10 7.00E-04 0.71 0.04
PM2.5 7.00E-04 0.71 0.04
VOC 6.42E-04 0.65 0.03
SO2 1.21E-05 0.01 0.00 AP-42 Table 3.4-1
HAP 0.01 0.00 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 1.16 1,172 59
Methane (mass basis)25 6.35E-05 0 0
CO2e 59
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 7.76E-04 5.49E-03 2.74E-04
Toluene 2.81E-04 1.99E-03 9.93E-05
Xylenes 1.93E-04 1.36E-03 6.82E-05
Formaldehyde 7.89E-05 5.58E-04 2.79E-05
Acetaldehyde 2.52E-05 1.78E-04 8.91E-06
Acrolein 7.88E-06 5.57E-05 2.79E-06
Naphthalene 1.30E-04 9.19E-04 4.60E-05
Acenaphthylene 9.23E-06 6.53E-05 3.26E-06
Acenaphthene 4.68E-06 3.31E-05 1.65E-06
Fluorene 1.28E-05 9.05E-05 4.52E-06
Phenanthrene 4.08E-05 2.88E-04 1.44E-05
Anthracene 1.23E-06 8.70E-06 4.35E-07
Fluoranthene 4.03E-06 2.85E-05 1.42E-06
Pyrene 3.71E-06 2.62E-05 1.31E-06
Benz(a)anthracene 6.22E-07 4.40E-06 2.20E-07
Chrysene 1.53E-06 1.08E-05 5.41E-07
Benzo(b)fluoranthene 1.11E-06 7.85E-06 3.92E-07
Benzo(k)fluoranthene 2.18E-07 1.54E-06 7.71E-08
Benzo(a)pyrene 2.57E-07 1.82E-06 9.08E-08
Indeno(1,2,3-cd)pyrene 4.14E-07 2.93E-06 1.46E-07
Dibenz(a,h)anthracene 3.46E-07 2.45E-06 1.22E-07
Benzo(g,h,l)perylene 5.56E-07 3.93E-06 1.97E-07
AP-42 Table 3.3-2,
Table 3.4-3, &
Table 3.4-4
(1,3-Butadiene will
not popluate if the
engine size is greater
than 600 hp. AP-42
does not list 1,3-
Butadiene for engines
greater than 600 hp.)
Diesel-Fired Engines
AP-42 Table 3.3-1
& Table 3.4-1
Manufacturer Data,
AP-42 Table 3.3-1,
& Table 3.4-1
Emission Factor
(lb/MMBtu)
Emergency Engines should
equal 100 hours of
operation per year
Page 4 of 4
Version 1.1
February 21, 2019