DAQ-2024-011122

DAQE-AN140100011-24

{{$d1 }}

Philip Williams
CUR USA Holding, LLC
217 Queen Street West, Floor 4
Toronto, ON M5V0R-2
[e-mail]

Dear Mr. Williams:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN140100008-18 For
Equipment Replacement
Project Number: N140100011

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on August
16, 2024. CUR USA Holding, LLC must comply with the requirements of this AO, all applicable state
requirements (R307), and Federal Standards.

The project engineer for this action is Stockton Antczak, 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.

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:SA:jg

cc: Southwest Utah Public Health Department
EPA Region 8

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

October 8, 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-AN140100011-24
Administrative Amendment to Approval Order
DAQE-AN140100008-18 For Equipment Replacement

Prepared By
Stockton Antczak, Engineer
[phone]
[e-mail]

Issued to
CUR Henry Mountains Uranium, LLC - Tony M Mine

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

October 8, 2024
TABLE OF CONTENTS

TITLE/SIGNATURE PAGE ....................................................................................................... 1
GENERAL INFORMATION ...................................................................................................... 3
CONTACT/LOCATION INFORMATION ............................................................................... 3
SOURCE INFORMATION ........................................................................................................ 3
General Description ................................................................................................................ 3
NSR Classification .................................................................................................................. 3
Source Classification .............................................................................................................. 3
Applicable Federal Standards ................................................................................................. 3
Project Description.................................................................................................................. 4
SUMMARY OF EMISSIONS .................................................................................................... 4
SECTION I: GENERAL PROVISIONS .................................................................................... 4
SECTION II: PERMITTED EQUIPMENT .............................................................................. 5
SECTION II: SPECIAL PROVISIONS ..................................................................................... 6
PERMIT HISTORY ..................................................................................................................... 7
ACRONYMS ................................................................................................................................. 8

DAQE-AN140100011-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
CUR USA Holding, LLC CUR Henry Mountains Uranium, LLC - Tony M Mine

Mailing Address Physical Address
217 Queen Street West, Floor 4
Toronto, ON M5V0R2 located in the Henry Mountain Basin 5 miles
north of Ticaboo, Utah and 127 miles west of the
White Mesa Mill

Source Contact UTM Coordinates
Name: Philip Williams 526,200 m Easting
Phone: [phone],179,800 m Northing
Email: [e-mail] Datum NAD27
UTM Zone 12
SIC code 1094 (Uranium-Radium-Vanadium Ores)

SOURCE INFORMATION
General Description
CUR Henry Mountain Uranium, LLC Tony M Mine is located in Garfield County, Utah, and is permitted
to support a maximum ore production rate of 240,000 tons per year (tpy). Tony M Mine is an
underground uranium mine using a room-and-pillar method. Ore is transported to the surface and
separated into ore and waste piles. The ore is transported offsite and then processed. Waste rock is
stockpiled in waste rock piles and underground in mined-out areas. Generators provide power to the mine,
and several tanks are used to hold diesel, gasoline, and used oil.

NSR Classification
Administrative Amendment
Source Classification
Located in Attainment Area
Garfield County
Airs Source Size: A
Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal
Combustion Engines
NESHAP (Part 61), A: General Provisions
NESHAP (Part 61), B: National Emission Standards for Radon Emissions From Underground
Uranium Mines
DAQE-AN140100011-24
Page 4

MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines
MACT (Part 63), CCCCCC: National Emission Standards for Hazardous Air Pollutants for
Source Category: Gasoline Dispensing Facilities

Project Description
This project includes the replacement of Auxiliary Generator #1 (II.A.5 in the equipment list). The current
diesel-fired generator is a Caterpillar SR4B with a rating of 230 kW. The replacement generator is a John
Deere 240 kW Tier 4 engine. The new generator has a lower PTE than the previous generator, so
site-wide emissions will be updated. The replacement generator will operate under the same conditions as
the original generator.

SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent -173.84 10594.30
Carbon Monoxide -2.08 17.10
Nitrogen Oxides -9.74 132.40
Particulate Matter - PM10 -0.72 12.20
Particulate Matter - PM2.5 -0.67 2.90
Sulfur Dioxide 0 0.10
Volatile Organic Compounds -0.81 4.20

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Total HAPs (CAS #THAPS) 0 300
Change (TPY) Total (TPY)
Total HAPs 0 0.15

SECTION I: GENERAL PROVISIONS

I.1 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.2 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 years. [R307-401-8]
DAQE-AN140100011-24
Page 5

I.3 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.4 The owner/operator shall comply with R307-150 Series. Inventories, Testing and Monitoring. [R307-150]

I.5 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107]
I.6 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.7 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

SECTION II: PERMITTED EQUIPMENT
II.A THE APPROVED EQUIPMENT II.A.1 Tony M Mine Underground Uranium Mine and support equipment
II.A.2 Generator #1 One diesel-fired generator with a maximum rating of 1,000 kW II.A.3 Generator #2 One diesel-fired generator with a maximum rating of 1,000 kW
II.A.4 Generator #3 One diesel-fired generator with a maximum rating of 200 kW II.A.5 Auxiliary Generator #1 One tier-4 compliant diesel-fired generator with a maximum rating of 240 kW
II.A.6 Auxiliary Generators #2 and #3 Two diesel-fired generators, each with a maximum rating of 59 kW II.A.7 Auxiliary Generator #4 One tier-4 compliant diesel-fired generator with a maximum rating of 40 kW
II.A.8 Fuel Storage Tanks Miscellaneous tanks for storing diesel fuel, gasoline and used oil II.A.9 Miscellaneous Miscellaneous storage and stockpiles

DAQE-AN140100011-24
Page 6

SECTION II: SPECIAL PROVISIONS
II.B REQUIREMENTS AND LIMITATIONS

II.B.1 Site-Wide Requirements
II.B.1.a Visible emissions from any emission point on site shall not exceed 20% opacity. Opacity
observations of emissions from stationary sources shall be conducted according to 40 CFR 60,
Appendix A, Method 9. [R307-401]

II.B.1.b Visible fugitive dust emissions from haul-road traffic and mobile equipment in operational areas shall not exceed 20% opacity at any point. Visible emission determinations shall use procedures similar to Method 9. The normal requirement for observations to be made at 15-second intervals over a six-minute period, however, shall not apply. Visible emissions shall be measured at the densest point of the plume but at a point not less than 1/2 vehicle length behind the vehicle and not less than 1/2 the height of the vehicle. [R307-401]
II.B.1.c The haul road speed for all haul trucks traveling on unpaved or untreated surfaces shall be
limited to 20 mph. The haul truck speed limit shall be posted and apply to all haul roads between
the facility and Highway 276. [R307-401-8]

II.B.1.d All regularly traveled unpaved roads and other unpaved operational areas that are used by mobile equipment shall be water sprayed and/or chemically treated to control fugitive dust. If chemical treatment is used, it shall take place a minimum of two times a year, dependent on observed dust generation. If water treatment is used, watering shall be initiated daily dependent upon observed dust generation. The opacity shall not exceed 20% during all times the areas are in use or unless it is below freezing. Records of water treatment shall be kept for all periods when the mine is in operation. The records shall include the following items: A. Date. B. Number of treatments made, dilution ratio, and quantity. C. Rainfall received, if any, and approximate amount. D. Time of day treatments were made. E. Temperature. [R307-401]
II.B.1.e The storage piles shall be watered or chemically treated to minimize generation of fugitive dust
as dry conditions warrant to meet the 20% opacity limitation or as determined necessary by the
Director. [R307-401]

DAQE-AN140100011-24
Page 7

II.B.2 Generator Fuel Requirements II.B.2.a The sulfur content of any diesel fuel burned in any of the power generators shall not exceed
0.0015 percent by weight. Certification of sulfur content shall be either by the owner/operator’s own testing or test reports from the fuel marketer. Additionally, if directed by the Director, the fuel sulfur content shall be tested using ASTM Method D-4294-89 or approved equivalent.
[R307-401]
II.B.2.b The owner/operator shall use diesel fuel as a fuel in all on-site equipment. [R307-401]
II.B.3 Diesel Generator Operation Limitations
II.B.3.a The following diesel generator hours of operation limits shall not be exceeded: A. The two 1000 kW generators shall not exceed 13,460 hours of operation (both engines combined) per rolling 12-month period. B. The 240 kW generator shall not exceed 2,000 hours of operation per rolling 12-month period. C. The 200 kW generator shall not exceed 2,400 hours of operation per rolling 12-month period. D. The two 59 kW generators shall not exceed 10,400 hours of operation (both engines combined) per rolling 12-month period. E. The 40 kW generator shall not exceed 600 hours of operation per rolling 12-month period. To determine compliance with a rolling 12-month total, the owner/operator shall calculate a new 12-month total for each day of the previous month by the twentieth day of each month using data from the previous 12 months. Hours of operation shall be determined by supervisor monitoring and maintaining of an operations log. [R307-401-8]
PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN140100008-18 dated April 12, 2018 Derived from NOI dated August 16, 2024

DAQE-AN140100011-24
Page 8

ACRONYMS

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

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

DAQE-

RN140100011
September 13, 2024

Philip Williams
CUR USA Holding, LLC
217 Queen Street West, Floor 4
Toronto, ON M5V0R2
[e-mail]

Dear Philip Williams,

Re: Engineer Review:
Administrative Amendment to Approval Order DAQE-AN140100008-18 For Equipment
Replacement.
Project Number: N140100011

Please review and sign this letter and attached Engineer Review (ER) within 10 business days. For this
document to be considered as the application for a Title V administrative amendment, a Title V
Responsible Official must sign the next page.

Please contact Stockon Antczak at [phone] if you have any questions or concerns about the ER.
If you accept the contents of this ER, please email this signed cover letter to Stockon Antczak at
[e-mail]. After receipt of the signed cover letter, the DAQ will prepare an Approval Order
(AO) for signature by the DAQ Director.

If CUR USA Holding, LLC does not respond to this letter within 10 business days, the project will move
forward without your approval. If you have concerns that we cannot resolve, 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 N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 1
OPTIONAL: In order for this Engineer Review and associated Approval Order conditions to be
considered as an application to administratively amend your Title V Permit, the Responsible Official, as
defined in R307-415-3, must sign the statement below. THIS IS STRICTLY OPTIONAL.

If you do not want the Engineer Review to be considered as an application to administratively amend
your Operating Permit only the approval signature above is required.

Failure to have the Responsible Official sign below will not delay the Approval Order, but will require
submittal of a separate Operating Permit Application to revise the Title V permit in accordance with
R307-415-5a through 5e and R307-415-7a through 7i. A guidance document: Title V Operating Permit
Application Due Dates clarifies the required due dates for Title V operating permit applications and can
be viewed at:

https://deq.utah.gov/air-quality/permitting-guidance-and-guidelines-air-quality

“Based on information and belief formed after reasonable inquiry, I certify that the
statements and information provided for this Approval Order are true, accurate and
complete and request that this Approval Order be considered as an application to
administratively amend the Operating Permit.”

Responsible Official _________________________________________________
(Signature & Date)

Print Name of Responsible Official _____________________________________

Marty Tunney COO
Marty Tunney (Sep 23, 2024 17:07 EDT)

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 2

UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION

Project Number N140100011
Owner Name CUR USA Holding, LLC
Mailing Address 217 Queen Street West, Floor 4
Toronto, ON, M5V0R2

Source Name CUR Henry Mountains Uranium, LLC - Tony M Mine
Source Location:
Tony M. Mine
Garfield County, UT 00000

UTM Projection 526,200 m Easting, 4,179,800 m Northing
UTM Datum NAD27
UTM Zone UTM Zone 12
SIC Code 1094 (Uranium-Radium-Vanadium Ores)

Source Contact Philip Williams
Phone Number [phone]
Email [e-mail]

Billing Contact Philip Williams
Phone Number (416) 569 - 9964
Email [e-mail]

Project Engineer Stockon Antczak, Engineer
Phone Number [phone]
Email [e-mail]

Notice of Intent (NOI) Submitted August 16, 2024
Date of Accepted Application August 26, 2024

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 3
SOURCE DESCRIPTION

General Description
CUR Henry Mountain Uranium, LLC.: Tony M Mine is located in Garfield County, Utah, and is
permitted to support a maximum ore production rate of 240,000 tons per year (tpy). Tony M.
Mine is an underground uranium mine using a room-and-pillar method. Ore is transported to the
surface and separated into ore and waste piles. The ore is transported offsite and then processed.
Waste rock is stockpiled in waste rock piles and underground in mined out areas. Generators
provide power to the mine and several tanks are used to hold diesel, gasoline, and used oil.

Tony M Mine is a major source of NOX. The following subparts apply to this source: 40 CFR 60
Subparts A (General Provisions) and IIII (Standards of Performance for Stationary Compression
Ignition Internal Combustion Engines); 40 CFR 61 Subparts A (General Provisions) and B
(National Emission Standards for Radon Emissions from Underground Uranium Mines); 40 CFR
63 Subparts A (General Provisions), ZZZZ (National Emission Standards for Hazardous Air
Pollutants for Stationary Reciprocating Internal Combustion Engines), and 40 CFR 63 Subpart
CCCCCC (National Emission Standards for Hazardous Air Pollutants for Source Category:
Gasoline Dispensing Facilities).

NSR Classification:
Administrative Amendment

Source Classification
Located in Attainment Area,
Garfield County
Airs Source Size: A

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal
Combustion Engines
NESHAP (Part 61), A: General Provisions
NESHAP (Part 61), B: National Emission Standards for Radon Emissions From Underground
Uranium Mines
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-AN140100008-18 For Equipment
Replacement.

Project Description
This project includes the replacement of Auxiliary Generator #1 (II.A.5 in the equipment list).
The current diesel-fired generator is a Caterpillar SR4B with a rating of 230 kW. The replacement
generator is a John Deere 240 kW Tier 4 engine. The new generator has a lower PTE than the
previous generator, so site wide emissions will be updated. The replacement generator will
operate under the same conditions as the original generator.

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 4
EMISSION IMPACT ANALYSIS
This project does not trigger any provisions of R307-410-4 or R307-410-5. It does not trigger any modeling
provisions under any of the NSPS, NESHAP or MACT requirements. [Last updated September 13, 2024]

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 5
SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent -173.84 10594.30
Carbon Monoxide -2.08 17.10
Nitrogen Oxides -9.74 132.40
Particulate Matter - PM10 -0.72 12.20
Particulate Matter - PM2.5 -0.67 2.90
Sulfur Dioxide 0 0.10
Volatile Organic Compounds -0.81 4.20

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Total HAPs (CAS #THAPS) 0 300
Change (TPY) Total (TPY)
Total HAPs 0 0.15

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

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 6
Review of BACT for New/Modified Emission Units

1. BACT review regarding Diesel-fuel fired generator
The replacement generator will be subject to the same requirements as the previous generator. No
BACT analysis is required at this time. [Last updated September 13, 2024]

SECTION I: GENERAL PROVISIONS

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

I.1 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.2 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.3 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.4 The owner/operator shall comply with R307-150 Series. Inventories, Testing and Monitoring.
[R307-150]

I.5 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

I.6 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.7 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 7
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 Tony M Mine
Underground Uranium Mine and support equipment

II.A.2 Generator #1
One diesel-fired generator with a maximum rating of 1,000 kw

II.A.3 Generator #2
One diesel-fired generator with a maximum rating of 1,000 kw

II.A.4 Generator #3
One diesel-fired generator with a maximum rating of 200 kw

II.A.5 Auxiliary Generator #1
One tier-4 compliant diesel-fired generator with a maximum rating of 240 kw

II.A.6 Auxiliary Generators #2 and #3
Two diesel-fired generators, each with a maximum rating of 59 kw

II.A.7 Auxiliary Generator #4
One tier-4 compliant diesel-fired generator with a maximum rating of 40 kw

II.A.8 Fuel Storage Tanks
Miscellaneous tanks for storing diesel fuel, gasoline and used oil

II.A.9 Miscellaneous
Miscellaneous storage and stockpiles

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 Site-Wide Requirements
II.B.1.a Visible emissions from any emission point on site shall not exceed 20% opacity. Opacity
observations of emissions from stationary sources shall be conducted according to 40 CFR 60,
Appendix A, Method 9. [R307-401]

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 8
II.B.1.b Visible fugitive dust emissions from haul-road traffic and mobile equipment in operational
areas shall not exceed 20% opacity at any point. Visible emission determinations shall use
procedures similar to Method 9. The normal requirement for observations to be made at 15-
second intervals over a six-minute period, however, shall not apply. Visible emissions shall
be measured at the densest point of the plume but at a point not less than 1/2 vehicle length
behind the vehicle and not less than 1/2 the height of the vehicle. [R307-401]

II.B.1.c The haul road speed for all haul trucks traveling on unpaved or untreated surfaces shall be
limited to 20 mph. The haul truck speed limit shall be posted and apply to all haul roads
between the Energy Fuels facility and Highway 276. [R307-401-8]

II.B.1.d All regularly traveled unpaved roads and other unpaved operational areas that are used by
mobile equipment shall be water sprayed and/or chemically treated to control fugitive dust. If
chemical treatment is used, it shall take place a minimum of two (2) times a year, dependant
on observed dust generation. If water treatment is used, watering shall be initiated daily
dependent upon observed dust generation. The opacity shall not exceed 20% during all times
the areas are in use or unless it is below freezing. Records of water treatment shall be kept for
all periods when the mine is in operation. The records shall include the following items:

A. Date

B. Number of treatments made, dilution ratio, and quantity

C. Rainfall received, if any, and approximate amount

D. Time of day treatments were made

E. Temperature

. [R307-401]

II.B.1.e The storage piles shall be watered or chemically treated to minimize generation of fugitive
dusts as dry conditions warrant to meet the 20% opacity limitation or as determined necessary
by the Director. [R307-401]

II.B.2 Generator Fuel Requirements
II.B.2.a The sulfur content of any diesel fuel burned in any of the power generators shall not exceed
0.0015 percent by weight. Certification of sulfur content shall be either by the Energy Fuels's
own testing or test reports from the fuel marketer. Additionally, if directed by the Director,
the fuel sulfur content shall be tested using ASTM Method D-4294-89 or approved equivalent.
[R307-401]

II.B.2.b Energy Fuels shall use diesel fuel as a fuel in all on-site equipment. [R307-401]

II.B.3 Diesel Generator Operation Limitations

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 9
II.B.3.a
NEW
The following diesel generator hours of operation limits shall not be exceeded:

A. The two 1000 kW generators shall not exceed 13,460 hours of operation (both
engines combined) per rolling 12-month period.

B. The 240 kW generator shall not exceed 2,000 hours of operation per rolling
12-month period.

C. The 200 kW generator shall not exceed 2,400 hours of operation per rolling
12-month period.

D. The two 59 kW generators shall not exceed 10,400 hours of operation (both
engines combined) per rolling 12-month period.

E. The 40 kW generator shall not exceed 600 hours of operation per rolling
12-month period.

To determine compliance with a rolling 12-month total, the owner/operator shall calculate a
new 12-month total for each day of the previous month by the twentieth day of each month
using data from the previous 12 months. Hours of operation shall be determined by supervisor
monitoring and maintaining of an operations log. [R307-401-8]

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 10
PERMIT HISTORY

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

Incorporates NOI dated August 16, 2024
Supersedes AO DAQE-AN0140100008-18 dated April 20, 2018

REVIEWER COMMENTS

1. Comment regarding Replacement-In-Kind:
The generator listed as auxiliary generator #1 under section II.A.5 in the AO is to be replaced. The
current generator is a Caterpillar SR4B with a rating of 230 kW. The replacement generator is an
MQ Power generator powered by a John Deere 240 kW Tier 4 engine. This is not considered a
replacement-in-kind as the capacity of the new motor is greater than that of the previous motor. [Last
updated September 13, 2024]

. Comment regarding Emissions Reduction:
The replacement generator has a lower PTE than the previous generator. The sites total emissions
have been updated to reflect this. [Last updated September 13, 2024]

Engineer Review N140100011: CUR Henry Mountains Uranium, LLC - Tony M Mine
September 13, 2024
Page 11
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

RN140100011 (002)
Final Audit Report 2024-09-23
Created:2024-09-23
By:joshua holland ([e-mail])
Status:Signed
Transaction ID:CBJCHBCAABAAAH4dRASCT8iR3jl7zhFUmjVsjExlAa1d
"RN140100011 (002)" History
Document created by joshua holland ([e-mail])
2024-09-23 - 9:05:36 PM GMT
Document emailed to Marty Tunney ([e-mail]) for signature
2024-09-23 - 9:05:49 PM GMT
Email viewed by Marty Tunney ([e-mail])
2024-09-23 - 9:06:08 PM GMT
Document e-signed by Marty Tunney ([e-mail])
Signature Date: 2024-09-23 - 9:07:27 PM GMT - Time Source: server
Agreement completed.
2024-09-23 - 9:07:27 PM GMT
IsoEnergy Ltd.
217 Queen Street West, Suite 303
Toronto, ON Canada M5V 0P5

2024-08-16

August 16, 2024

Mr. Bryce Bird
Director, Division of Air Quality
Utah Department of Environmental Quality
195 North 1950 West
Salt Lake City, Utah 84116
Via E-Mail: [e-mail]

Re: Notice of Replacement-in-Kind of Equipment for the Tony M Mine

Dear Mr. Bird:
The Tony M Mine currently operates under Utah Department of Environmental Quality (UDEQ), Division
of Air Quality (DAQ) Approval Order (AO) number DAQE-AN0140100008-18. CUR Henry Mountains
Uranium, LLC a wholly owned subsidiary of IsoEnergy, Ltd. (IsoEnergy) is in the process of replacing a
diesel-fired generator at the site. The generator is listed in the AO as Auxiliary Generator #1 under Section
II.A.5. The currently installed diesel-fired generator is a Caterpillar SR4B with a rating of 230 kilowatts
(kW) and is limited to 2,000 hours of operation per rolling 12-month period under Section II.B.3.a.B of the
AO. IsoEnergy plans to replace the current generator with an MQ Power generator powered by a John
Deere 240 kW Tier 4 engine.
Because the new generator has lower potential to emit (PTE) emissions, the AO can be updated without
a permit modification following the DAQ procedures outlined in the Utah Administrative Code (UAC)
R307-401-11, “Replacement-in-Kind Equipment.” This letter serves as written notification to the director
replacing the equipment under the Replacement-in-Kind procedures. The Replacement-in-Kind
procedures are listed below:
R307-401-11. Replacement-in-Kind Equipment.
(1) Applicability. Existing process equipment or pollution control equipment that is covered by an
existing approval order or State Implementation Plan requirement may be replaced using the
procedures in (2) below if:
(a) the potential to emit of the process equipment is the same or lower;
(b) the number of emission points or emitting units is the same or lower;
(c) no additional types of air pollutants are emitted as a result of the replacement;
2

(d) the process equipment or pollution control equipment is identical to or functionally equivalent
to the replaced equipment;
(e) the replacement does not change the basic design parameters of the process unit or pollution
control equipment;
(f) the replaced process equipment or pollution control equipment is permanently removed from
the stationary source, otherwise permanently disabled, or permanently barred from operation;
(g) the replacement process equipment or pollution control equipment does not trigger New
Source Performance Standards or National Emissions Standards for Hazardous Air Pollutants under 42
U.S.C. 7411 or 7412; and
(h) the replacement of the control apparatus or process equipment does not violate any other
provision of Title R307.

(2) Replacement-in-Kind Procedures.
(a) In lieu of filing a notice of intent under Section R307-401-5, the owner or operator of a
stationary source shall submit a written notification to the director before replacing the equipment.
The notification shall contain a description of the replacement-in-kind equipment, including the control
capability of any control apparatus and a demonstration that the conditions of (1) above are met.
(b) If the replacement-in-kind meets the conditions of (1) above, the director will update the
source's approval order and notify the owner or operator. Public review under Section R307-401-7 is
not required for the update to the approval order.

(3) If the replaced process equipment or pollution control equipment is brought back into operation,
it shall constitute a new emissions unit.

The John Deere 240-kW generator will operate under the same AO restrictions as the permitted generator
which includes a maximum of 2,000 hours per year operation. The replacement engine is functionally
equivalent to the current engine. The size rating is slightly different between the two engines but because
the new engine is Tier 4 rated, several pollutants will have lower emissions. Tables 1 through 4 present
emission estimates from the engines and summarizes the difference in emissions for each air pollutant.
Attachment 1 provides engine specifications for the new generator. The current 230 kW engine will be
permanently removed from the facility.
In accordance with R307-401-11, if the director determines that the engine replacement meets the
requirements of the rule, the AO will be updated, and the owner/operator notified. Public review under
R307-401-7 is not required for the update to the AO. If you have any additional questions or require
additional information to assist with your review, please contact me Josh Holland at [phone]
([e-mail]). We appreciate the continued partnership with you and look forward to working
together on this matter.
Sincerely,

Joshua Holland
Director of Regulatory Affairs
350 Indiana Street, Suite 700, Golden, CO 80401

Page | 3

Total Hourly
Emissions
Total Annual
Emissions
230 kW
Generator 1
240 kW Tier 4
Generator 1
(lbs/hr) (tons/yr) (tons/yr) (tons/yr) (tons/yr) (tons/yr) (tons/yr)
Criteria Pollutants
CO 11.06 19.14 2.06 0.005 19.2 17.1 -2.1
NOX 53.3 141.9 9.56 0.031 142.1 132.4 -9.8
PM10 3.14 12.90 0.68 0.010 12.9 12.2 -0.7
PM2.5 1.57 3.55 0.68 0.010 3.6 2.9 -0.7
VOC 2.40 5.00 0.78 0.010 5.0 4.2 -0.8
SO2 0.04 0.10 0.004 0.002 0.1 0.10 0.0
CO2e --- 10736.14 374.81 200.95 10768.1 10594.3 -173.9
Polycyclic Aromatic Hydrocarbons (PAH)
Acenaphthene 4.47E-05 3.64E-05 1.11E-06 1.16E-06 --- 3.65E-05 0.0
Acenaphthylene 6.77E-03 1.30E-04 3.97E-06 4.14E-06 --- 1.30E-04 0.0
Anthracene 1.65E-05 4.80E-05 1.47E-06 1.53E-06 --- 4.80E-05 0.0
Benzo(a)anthracene 1.48E-05 4.31E-05 1.32E-06 1.38E-06 --- 4.32E-05 0.0
Benzo(a)pyrene 1.66E-06 4.82E-06 1.48E-07 1.54E-07 --- 4.83E-06 0.0
Benzo(b,k)fluoranthene 2.24E-06 6.52E-06 1.99E-07 2.08E-07 --- 6.53E-06 0.0
Benzo(g,h,i)perylene 4.32E-06 1.25E-05 3.84E-07 4.00E-07 --- 1.26E-05 0.0
Chrysene 3.12E-06 9.05E-06 2.77E-07 2.89E-07 --- 9.07E-06 0.0
Dibenz(a,h)anthracene 5.15E-06 1.50E-05 4.57E-07 4.77E-07 --- 1.50E-05 0.0
Fluoranthene 6.72E-05 1.95E-04 5.97E-06 6.23E-06 --- 1.95E-04 0.0
Fluorene 2.58E-04 7.49E-04 2.29E-05 2.39E-05 --- 7.50E-04 0.0
Indeno(1,2,3-cd)pyrene 3.31E-06 9.62E-06 2.94E-07 3.07E-07 --- 9.63E-06 0.0
Naphthalene 7.49E-04 2.18E-03 6.65E-05 6.94E-05 --- 2.18E-03 0.0
Phenanthrene 2.60E-04 7.54E-04 2.31E-05 2.41E-05 --- 7.55E-04 0.0
Pyrene 4.22E-05 1.23E-04 3.75E-06 3.91E-06 --- 1.23E-04 0.0
Total PAHs 8.24E-03 4.31E-03 1.32E-04 1.38E-04 ---4.32E-03 0.0
Organic Hazardous Air Pollutants (HAP)
Acetaldehyde 8.17E-04 1.97E-02 6.02E-04 6.28E-04 --- 1.97E-02 0.0
Acrolein 8.17E-04 2.37E-03 7.26E-05 7.57E-05 --- 2.38E-03 0.0
Benzene 8.58E-03 2.54E-02 7.32E-04 7.64E-04 --- 2.55E-02 0.0
1,3-Butadiene 3.45E-04 1.00E-03 3.07E-05 3.20E-05 --- 1.00E-03 0.0
Formaldehyde 1.04E-02 3.03E-02 9.26E-04 9.66E-04 --- 3.03E-02 0.0
Toluene 4.52E-03 1.45E-02 3.21E-04 3.35E-04 --- 1.45E-02 0.0
Xylenes 2.88E-03 8.89E-03 2.24E-04 2.33E-04 --- 8.90E-03 0.0
Total HAPs 0.02837 0.10211 0.00291 0.00303 0.2 1.11E-01 0.0
Notes:
1 - Based on 2000 hours of operation per year
Change in
Emissions
TABLE 1
TONY M MINE
REPLACEMENT-IN-KIND ANALYSIS, DIESEL GENERATOR EMISSIONS
Pollutant
Inventory Emissions Difference Between Generators Permitted Annual
Facility-Wide
Emissions
New Annual
Facility-Wide
Emissions
350 Indiana Street, Suite 700, Golden, CO 80401

Page | 4

Emission Factors Source: Manufacturer Data
Explanation:Emission estimates are based on a new 240 kW Tier 4-certified engine.
Data: PR (240) = 240 kW (prime)
F (240) = 8.9 gal/hr Load Fuel Consumption from Test Data: 8.9 gph
OH (240) = 2000 hrs/yr
Emissions Estimate:
Hourly
Emissions
Annual
Emissions
(lb/hr) (tons/yr)
CO 0.007 g/hp-hr Manufacturer Data 0.005 0.005
NOX 0.044 g/hp-hr Manufacturer Data 0.031 0.031
PM10/PM2.5 1 0.014 g/hp-hr Manufacturer Data 0.010 0.010
VOC 2 0.014 g/hp-hr Manufacturer Data 0.010 0.010
SO2 2.13E-04 lb/gal Calculation3 0.002 0.002
1 It was assumed in this analysis that 100% of the PM emission factor comes from PM10.
2 It was assumed in this analysis that 100% of the Total Unburned Hydrocarbon emission factor comes from VOCs.
3 Emission factor based on: SO2 (lbs/gal) = (0.0015 Wt% S in fuel) * (7.1 lb fuel/gal fuel) * (64 lb SO2/32 lb S)
John Deere 6090HFG06
EPA Tier 4 Final Certified 1
TABLE 2
TONY M MINE
PROPOSED 240 KW GENERATOR EMISSIONS - CRITERIA POLLUTANTS
Generator Number of
Units Pollutant
Emission
Factor per
Unit
Units Emission Factor Source
Emission Rate
350 Indiana Street, Suite 700, Golden, CO 80401

Page | 5

Emission Source: GENERATORS
EF Reference: AP-42, Section 3.3, "Gasoline and Diesel Industrial Engines"
Explanation:
Data: PR (230) = 240 kW
OH (230) = 2000 hrs/yr
Emissions Estimate:
lbs/hr tpy
HAPs
Acenaphthene 1.42E-06 lb/mmBtu 1.16E-06 1.16E-06 83-32-9
Acenaphthylene 5.06E-06 lb/mmBtu 4.14E-06 4.14E-06 208-96-8
Acetaldehyde 7.67E-04 lb/mmBtu 6.28E-04 6.28E-04 75-07-0
Acrolein 9.25E-05 lb/mmBtu 7.57E-05 7.57E-05 107-02-8
Anthracene 1.87E-06 lb/mmBtu 1.53E-06 1.53E-06 120-12-7
Benzene 9.33E-04 lb/mmBtu 7.64E-04 7.64E-04 71-43-2
Benzo(a)anthracene 1.68E-06 lb/mmBtu 1.38E-06 1.38E-06 56-55-3
Benzo(a)pyrene 1.88E-07 lb/mmBtu 1.54E-07 1.54E-07 50-32-8
Benzo(b,k)fluoranthene 2.54E-07 lb/mmBtu 2.08E-07 2.08E-07 205-99-2
Benzo(g,h,l)perylene 4.89E-07 lb/mmBtu 4.00E-07 4.00E-07
191-24-2
205-82-3
207-08-9
1,3-Butadiene 3.91E-05 lb/mmBtu 3.20E-05 3.20E-05 106-99-0
Chrysene 3.53E-07 lb/mmBtu 2.89E-07 2.89E-07 218-01-9
Dibenz(a,h)anthracene 5.83E-07 lb/mmBtu 4.77E-07 4.77E-07 53-70-3
Fluoranthene 7.61E-06 lb/mmBtu 6.23E-06 6.23E-06 206-44-0
Fluorene 2.92E-05 lb/mmBtu 2.39E-05 2.39E-05 86-73-7
Formaldehyde 1.18E-03 lb/mmBtu 9.66E-04 9.66E-04 50-00-0
Indeno(1,2,3-cd)pyrene 3.75E-07 lb/mmBtu 3.07E-07 3.07E-07 193-39-5
Naphthalene 8.48E-05 lb/mmBtu 6.94E-05 6.94E-05 91-20-3
Phenanthrene 2.94E-05 lb/mmBtu 2.41E-05 2.41E-05 85-01-8
Pyrene 4.78E-06 lb/mmBtu 3.91E-06 3.91E-06 129-00-0
Toluene 4.09E-04 lb/mmBtu 3.35E-04 3.35E-04 108-88-3
Xylenes 2.85E-04 lb/mmBtu 2.33E-04 2.33E-04 1330-20-7
Total HAPs 3.18E-03 lb/mmBtu 3.17E-03 3.17E-03
Note: No inorganic HAPs emission factors provided in AP-42, Section 3.3.
Chemical
Abstract
Services
(CAS)
240 kW Generator
Emission estimates are based on a new 240 kW Tier 4-certified
engine. The calculations are based on specifications from the
generator manufacturer and AP-42 emission factors as noted.
TABLE 3
TONY M MINE
PROPOSED 240 KW GENERATOR EMISSIONS - TOXIC POLLUTANTS
Pollutant Emission
Factor Units
350 Indiana Street, Suite 700, Golden, CO 80401

Page | 6

Emission Source: GENERATORS
Emission Factor From: 40 CFR Part 98, Table C-1
Explanation:Emission estimates are based on a new 240 kW Tier 4-certified engine.
Emission Equations: Annual emissions (metric tons/yr) = 1 x 10-3 * Fuel * HHV * EF
Total Emissions = Emissions per Unit * Number of Units
Where: 1 x 10
-3 = Conversion from kg to metric tons
Fuel = Mass or volume of fuel combusted per year
HHV = Default high heat value of fuel
EF = Fuel emission factor
Data:HHV (#2 Fuel Oil) = 0.138 mmBTU/gallon Global Warming Potential (GWP)
CO2 EF = 73.96 kg/mmBTU CO2 =1
CH4 EF = 3.00E-03 kg/mmBTU CH4 =25
N2O EF = 6.00E-04 kg/mmBTU N2O = 298
Size: 240 240 kW
Fuel Usage:240 8.9 gal/hr
Hours Operation: 240 2000 hrs/yr
Emissions Estimate:
Annual
Emissions
Annual
Emissions
Annual
Emissions
(kg/year) (metric tons/yr) (short tons/yr)
CO2 73.96 kg/mmBTU 40 CFR Part 98, Table C-1 181,675 181.68 200.26
CH4 3.00E-03 kg/mmBTU 40 CFR Part 98, Table C-1 7 0.01 0.01
N2O 6.00E-04 kg/mmBTU 40 CFR Part 98, Table C-1 1 0.001 0.002
CO2e 182,299 182 201
The calculations are based on specifications from the
generator manufacturer and the EPA GHG Reporting Rule.
CO2 Equivalent Emissions:
240 1
TABLE 4
TONY M MINE
GENERATOR EMISSIONS - GREENHOUSE GAS POLLUTANTS
Generator Number
of Units Pollutant
Emission
Factor per
Unit
Units Emission Factor Source
350 Indiana Street, Suite 700, Golden, CO 80401

ATTACHMENT 1
Engine Specifications

DCA300SSJU4F3 — MQ POWER GENERATOR — REV. #1 (02/27/24)
DCA300SSJU4F3
Generator
WhisperWatt™
Prime Rating — 240 kW (300 kVA)
Standby Rating — 264 kW (330 kVA)
3-Phase, 50/60 Hertz, 0.8 PF
STANDARD FEATURES „Heavy duty, 4-cycle, electronic direct injection, turbocharged, charged air cooler, variable speed fan, 1000W block heater, diesel engine provides maximum reliability.
„EPA emissions certified — Tier 4 Final emissions compliant.
„Microprocessor engine control system maintains frequency to ±0.25%.
„Full load acceptance of standby nameplate rating in a single step.
„Fuel/water separator removes condensation from fuel for extended engine life. Panel mounted alarm light included.
„Sound attenuated, weather resistant, steel housing provides operation at 72 dB(A) at 23 feet. Fully lockable enclosure allows safe unattended operation.
„E-coat and powder coat paint provides durability and weather protection.
„UN31A internal fuel tank with direct reading fuel gauges are standard.
„Spill Containment — Bunded design protects environment by capturing up to 123% of engine fluids.
„Brushless alternator reduces service and maintenance requirements and meets temperature rise standards for Class F insulation systems.
• Open delta alternator design provides virtually unlimited excitation for maximum motor starting capability.• Automatic voltage regulator (AVR) provides precise regulation.
„Fully covered power panel. Three-phase terminals and single phase receptacles allow fast and convenient hookup for most applications including temporary power boxes, tools and lighting equipment. All are NEMA standard.
„ECU845 microprocessor-based digital generator controller.
• Remote 2-wire start/stop control.
• High visibility LCD display with heated screen and alphanumeric readout.
• Operational temperature range of -40° to 85° C.
• AC monitoring along with fuel and DEF level indicators.
„Digital engine gauges including oil pressure, water temperature, battery volts, engine speed, engine load, fuel level and DEF level.
„Analog generator instrumentation including AC ammeter, AC voltmeter, frequency meter, ammeter phase selector switch, voltmeter phase selector switch, and voltage regulator adjustment potentiometer.
„Dual frequency capability allows for operation at 50 Hz or 60 Hz.
„Automatic safety shutdown system monitors the water temperature, engine oil pressure, low coolant, low DEF, overspeed, and overcrank. Warning lights indicate abnormal conditions.
„Emergency stop switch — when manually activated, shuts down generator in the event of an emergency.
300
DCA300SSJU4F3 — MQ POWER GENERATOR — REV. #1 (02/27/24)
DCA300SSJU4F3
Generator
SPECIFICATIONS
Generator Specifications
Design Revolving field, self-ventilated Drip-proof, single bearing
Armature Connection Star with NeutralPhase3
Standby Output 264 KW (330 KVA)
Prime Output 240 KW (300 KVA)
3Ø Voltage (L-L/L-N) Voltage Change-Over Bus Bars at 3Ø 240/139 208Y/120, 220Y/127, 240Y/139
3Ø Voltage (L-L/L-N) Voltage Change-Over Bus Bars at 3Ø 480/277 416Y/240, 440Y/254, 480Y/277
1Ø Voltage (L-L/L-N) Voltage Change-Over Bus Bars at 1Ø 240/120)N/A
Power Factor 0.8
Voltage Regulation (No load to full load)±0.5%Generator RPM 1800Frequency50/60 Hz
Winding Pitch 2/3
No. of Poles 4
Excitation Brushless with AVR
Frequency Regulation: No Load to Full Load Isochronous under varying loads from no load to 100% rated load
Frequency Regulation: Steady State ±0.25% of mean value for constant loads from no load to full load.
Insulation Class F
Sound Level dB(A) Full load at 23 feet 72
Engine Specifications
Make / Model John Deere / 6090HFG06
Emissions EPA Tier 4 Final Certified
Starting System Electric
Design 4-cycle, water cooled, direct injection, turbocharged, charged air cooled, EGR, DOC, and SCR.
Displacement 549.2 in3 (9.0 liters)
No. cylinders 6
Bore x Stroke 4.64 x 5.34 in. (118.4 x 136 mm)
Gross Engine Power Output 437 hp (326 kW)
BMEP 320 psi (2212 kPa)
Piston Speed 1606 ft/min (8.16 m/s)
Compression Ratio 16.0 : 1
Engine Speed 1800 rpm
Overspeed Limit 2070 rpm
Oil Capacity 9.3 gallons (35 liters)
Battery 12V 430Ah x 1
Fuel System
Recommended Fuel ASTM-D975-No.1 & No.2-D*
Maximum Fuel Flow (per hour)43 gallons (163.1 liters)
Maximum Inlet Restriction (Hg)5.9 in (150 mm)
Fuel Tank Capacity 430.6 gallons (1630 liters)
Fuel Consumption gph lph
At full load 16.7 63.2
At 3/4 load 12.5 47.4
At 1/2 load 8.9 33.8
At 1/4 load 5.8 21.9
DEF Tank Capacity 29.8 gallons (112.8 liters)
* - Use ultra-low sulfur diesel fuel.
WARRANTY*
John Deere Engine
12 months from date of purchase with unlimited hours or 24 months
and prior to the accumulation of 2000 hours (whichever occurs first).
Generator
24 months from date of purchase or 2000 hours (whichever occurs first).
Trailer
12 months excluding normal wear items.
*Refer to the express written, one-year limited warranty sheet for additional information.
Cooling System
Fan Load 26.8 hp (20 kW)
Coolant Capacity (with radiator)17.7 gallons (67 liters)
Coolant Flow Rate (per minute)102 gallons (385 liters)
Heat Rejection to Coolant (per minute)10,473 Btu (11.05 MJ)
Maximum Coolant Friction Head 8.7 psi (60 kPa)
Maximum Coolant Static Head 78.7 ft. (24.1 m)
Ambient Temperature Rating 104°F (40°C)
Air
Combustion Air 742 cfm (21.0 m3/min)
Maximum Air Cleaner Restriction 25 in. H2O (6.25 kPa)
Alternator Cooling Air 2797 cfm (79.0 m3/min)
Radiator Cooling Air 11,800 cfm (334.1 m3/min)
Exhaust System
Gas Flow (full load)1,448 cfm (41.0 m3/min)
Gas Temperature 831°F (444°C )
Maximum Back Pressure 116 in. H2O (29 kPa)
Amperage
Rated Voltage Maximum Amps
1Ø 120 Volt 666.7 Amps (4 wire)
1Ø 240 Volt 333.3 Amps (4 wire)
3Ø 208 Volt 722 Amps
3Ø 240 Volt 722 Amps
3Ø 480 Volt 360 Amps
Main Line Circuit Breaker Rating 800 Amps
Over Current Relay Trip Set Point 480V Mode Only 361 Amps
NOTICE
Specifications sheet is subject to change and is not intended for use in installation design.
DCA300SSJU4F3 — MQ POWER GENERATOR — REV. #1 (02/27/24)
DCA300SSJU4F3
Generator
GENERATOR OUTPUT PANEL
CS-6369 TWIST-LOCKRECEPTACLES (3)240/139V, 50 AMPS
GFCI RECEPTACLES (2)120V, 20 AMP
CIRCUIT BREAKERSFOR GFCI RECEPTACLES
CIRCUIT BREAKERSFOR CS-6369 TWISTLOCK RECEPTACLES
OPTIONAL GENERATOR FEATURES
„Parallel Controls — provides the ability to connect multiple generators together into a single power generation system.
„PowerBalance™ — designed to assist generators when operating under low temperature and/or low load conditions to insure peak performance.
„Battery Charger — provides fully automatic and self-adjusting charging to the generator's battery system.
„Crankcase Vent Blanket with Heating Element — insures proper crankcase ventilation in freezing conditions. (Unit comes standard with a non-heated crankcase blanket)
„Trailer Mounted Package — meets National Highway
Traffic Safety Administration (NHTSA) regulations. Trailer is
equipped with electronic or surge brakes on all axles.
OPTIONAL CONTROL FEATURES
„Audible Alarm alerts operator of abnormal conditions.
OPTIONAL FUEL CELL FEATURES
„Sub-base Fuel Cells (double wall) — additional fuel cell for extended runtime operation. Contains a leak sensor, low fuel level switch, and a secondary containment tank. UL142 listed.
„12 hours of minimum run time.
„24 hours of minimum run time.
OPTIONAL OUTPUT CONNECTIONS
„Cam-Lok Connectors — provides quick disconnect alternative to bolt-on connectors.
„Pin and Sleeve Connectors — provides industry standard connectors for all voltage requirements.
„Output Cable — available in any custom length and size configuration.
© COPYRIGHT 2024 MULTIQUIP INC.
DCA300SSJU4F3 Rev. #1 (02/27/24)
DCA300SSJU4F3
Generator
MULTIQUIP
6141 Katella Avenue Suite 200
Cypress, CA 90630
310-537-3700
E-MAIL: [e-mail]
WEBSITE: www.multiquip.com
SKID-MOUNT DIMENSIONS
10.67 in (271 mm)
222.64 in (5655 mm)
300
300
35.28 in (896 mm)
55.90 in (1420 mm)
59.05 in (1500 mm)
129.57 in (3291 mm)
99.5 in (2527mm)
118.9 in (3020 mm)
96.46 in
(2450 mm)
25.59 in
(650 mm)
35.43 in
(900 mm)
35.43 in
(900 mm)
35.43 in
(900 mm)
149.60 in
(3800 mm)
17.72 in
(450 mm)
82.20 in
(2088 mm)
Shown with optional
TRLR300EVH,
PowerBalance™
Stabilizer Jacks,
Spare Tire,
Storage Box,
and Grab Handle

Generator can be placed on MQ Trailer Model TRLR300EV (H/E). NOTICE
Features and Specifications are subject to change without notice.
TRAILER-MOUNT DIMENSIONS
DCA300SSJU4F3 Weights*
Dry Weight 11,155 lbs. (5,060 kg)
Wet Weight 14,815 lbs. (6,720 kg)
Max. Lifting Point Capacity 19,000 lbs. (8,618 kg)
* Weights do not include options.
DCA300SSJU4F3 and TRLR300EV Weights*
Dry Weight (with TRLR300EV)14,075 lbs. (6,384 kg)
Wet Weight (with TRLR300EV)17,735 lbs. (8,044 kg)
EXHAUST EMISSION DATA SHEET
MQ POWER
Model:
The engine used in this generator set is certified to comply with
United States EPA Tier and CARB Mobile Off-Highway emission regulations.
ENGINE DATA
Manufacturer:Bore: in. ( mm)
Model: Stroke: in. ( mm)
Type:Displacement: cid (liters)
Aspiration: Compression Ratio:
PERFORMANCE DATA
SAE Gross HP @ RPM (60 Hz) Rated
Load Fuel Consumption (gal/Hr) Rated
Load Exhaust Gas Flow (cfm) Rated Load
Exhaust Gas Temperature (ºF)
United States EPA - Mobile Off-Highway Tier Limits - BHP
Criteria Pollutant Emission Requirements Certified Engine Emissions
NOx (Oxides of Nitrogen as NO2)
HC (Total Unburned Hydrocarbons)
NOx + HC (Combined)
CO (Carbon Monoxide)
PM (Particulate Matter)
NMHC (Non-Methane Hydrocarbons)
NMHC + NOx
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
gr/bhp-hr
EPA Engine Family:
EPA Certificate of Conformance:
ARB Executive Order:
Effective Date:
Note: Engine operation with excessive air intake or exhaust restriction beyond factory published
maximum limits, or with improper service maintenance, may result in higher emission levels.
Data And Specifications Subject To Change Without Notice Date:
GENERATOR SET
DCA220SSJU4F3/B/PB/PD
JOHN DEERE
6068HFG05
4-Cycle, In-Line, 6-Cylinder, Diesel
Turbocharger, ECM, EGR, DOC, SCR Electronic Direct
Injection, Charge Air Cooler
4
4
4.17 106
5.0 127
415 6.8
17.2:1
2151800
8.9
812
685
174”~”751
0.298
N/A N/A
N/A N/A
2.60 0.007
0.014 0.014
0.044
0.141 0.014
N/A N/A
PJDXL06.8312
PJDXL06.8312-018
U-R-004-0646
Model Year 2023
2/10/2023
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
2023 MODEL YEAR
CERTIFICATE OF CONFORMITY
WITH THE CLEAN AIR ACT
OFFICE OF TRANSPORTATION
AND AIR QUALITY
ANN ARBOR, MICHIGAN 48105
Certificate Issued To:Deere & Company
(U.S. Manufacturer or Importer)
Certificate Number: PJDXL06.8312-018
Effective Date:
09/29/2022
Expiration Date:
12/31/2023
_________________________
Byron J. Bunker, Division Director
Compliance Division
Issue Date:
09/29/2022
Revision Date:
N/A
Model Year: 2023
Manufacturer Type: Original Engine Manufacturer
Engine Family: PJDXL06.8312
Mobile/Stationary Indicator: Both
Emissions Power Category: 130<=kW<=560
Fuel Type: Diesel
After Treatment Devices: Diesel Oxidation Catalyst, Ammonia Slip Catalyst, Selective Catalytic
Reduction
Non-after Treatment Devices: Electronic Control, Electronic/Electric EGR - Cooled, Non-standard
Non-After Treatment Device Installed
Pursuant to Section 111 and Section 213 of the Clean Air Act (42 U.S.C. sections 7411 and 7547) and 40 CFR Parts 60 and 1039, and subject to the terms and conditions prescribed in those provisions, this
certificate of conformity is hereby issued with respect to the test engines which have been found to conform to applicable requirements and which represent the following engines, by engine family, more
fully described in the documentation required by 40 CFR Parts 60 and 1039 and produced in the stated model year.
This certificate of conformity covers only those new compression-ignition engines which conform in all material respects to the design specifications that applied to those engines described in the
documentation required by 40 CFR Parts 60 and 1039 and which are produced during the model year stated on this certificate of the said manufacturer, as defined in 40 CFR Parts 60 and 1039.
It is a term of this certificate that the manufacturer shall consent to all inspections described in 40 CFR 1068 and authorized in a warrant or court order. Failure to comply with the requirements of such a
warrant or court order may lead to revocation or suspension of this certificate for reasons specified in 40 CFR Parts 60 and 1039. It is also a term of this certificate that this certificate may be revoked or
suspended or rendered void ab initio for other reasons specified in 40 CFR Parts 60 and 1039.
This certificate does not cover engines sold, offered for sale, or introduced, or delivered for introduction, into commerce in the U.S. prior to the effective date of the certificate.
DEERE & COMPANY EXECUTIVE ORDER U-R-004-0646New Off-RoadCompression-Ignition Engines
Pursuant to the authority vested in California Air Resources Board by Sections 43013, 43018, 43101, 43102, 43104
and 43105 of the Health and Safety Code; and
Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the Health and Safety Code
and Executive Order G-19-095;
IT IS ORDERED AND RESOLVED:That the following compression-ignition engines and emission control systems
produced by the manufacturer are certified as described below for use in off-road equipment. Production engines
shall be in all material respects the same as those for which certification is granted.
MODEL YEAR ENGINE FAMILY DISPLACEMENT
(liters)FUEL TYPE USEFUL LIFE(hours)
2023 PJDXL06.8312 6.8 Diesel 8000
SPECIAL FEATURES & EMISSION CONTROL SYSTEMS TYPICAL EQUIPMENT APPLICATION
Charge Air Cooler, Oxidation Catalyst, Electronic
Direct Injection, Electronic Control Module, Exhaust
Gas Recirculation, Turbocharger, Selective Catalyst
Reduction-Urea, Ammonia Oxidation Catalyst
Pump, Compressor, Generator Set, Other Steady State
Industrial Equipment
The engine models and codes are attached.
The following are the exhaust certification standards (STD) and certification levels (CERT) for non-methane hydrocarbon
(NMHC), oxides of nitrogen (NOx), or non-methane hydrocarbon plus oxides of nitrogen (NMHC+NOx), carbon
monoxide (CO), and particulate matter (PM) in grams per kilowatt-hour (g/kw-hr), and the opacity-of-smoke certification
standards and certification levels in percent (%) during acceleration (Accel), lugging (Lug), and the peak value from either
mode (Peak) for this engine family (Title 13, California Code of Regulations, (13 CCR) Section 2423):
RATED POWER
CLASS
EMISSION
STANDARD
CATEGORY
EXHAUST (g/kw-hr) OPACITY (%)
NMHC NOx NMHC+NOx CO PM ACCEL LUG PEAK
130 kW STD
CERT
BE IT FURTHER RESOLVED:That for the listed engine models, the manufacturer has submitted the information and
materials to demonstrate certification compliance with 13 CCR Section 2424 (emission control labels), and 13 CCR
Sections 2425 and 2426 (emission control system warranty).
Engines certified under this Executive Order must conform to all applicable California emission regulations.
This Executive Order is only granted to the engine family and model-year listed above. Engines in this
family that are produced for any other model-year are not covered by this Executive Order.
Executed on this day of October 2022.
Robin U. Lang, Chief
Emissions Certification and Compliance Division
Attachment: Engine Models EO #:U-R-004-0646 Family:PJDXL06.8312 Attachment Last Revised:10/5/2022
Model Code Trim Config Displacement
Displacement -
Units Peak Power
Peak Power -
Units
Peak Power -
Speed (rpm)
Peak Power -
Fueling
Peak Power - Fuel
Units Peak Torque
Peak Torque -
Units
Peak Torque -
Speed (rpm) Peak Torque - Fuel
Peak Torque - Fuel
Units OBD GHG Special Notes
6068 6068HFG05A I-6 6.8 Liters 192 kilowatt 1800 143.5 mm3/stroke 1019 N-m 1800 143.5 mm3/stroke N/A N/A
6068 6068HFG05B I-6 6.8 Liters 160 kilowatt 1800 119.4 mm3/stroke 849 N-m 1800 119.4 mm3/stroke N/A N/A
6068 6068HFG05C I-6 6.8 Liters 165 kilowatt 1500 145.4 mm3/stroke 1050 N-m 1500 145.4 mm3/stroke N/A N/A
6068 6068HFG05D I-6 6.8 Liters 160 kilowatt 1500 142.3 mm3/stroke 1019 N-m 1500 142.3 mm3/stroke N/A N/A
6068 6068HFG06A I-6 6.8 Liters 241 kilowatt 1800 180.4 mm3/stroke 1279 N-m 1800 180.4 mm3/stroke N/A N/A
6068 6068HFG06B I-6 6.8 Liters 216 kilowatt 1800 159.8 mm3/stroke 1146 N-m 1800 159.8 mm3/stroke N/A N/A
6068 6068HFG06C I-6 6.8 Liters 197 kilowatt 1500 176.6 mm3/stroke 1254 N-m 1500 176.6 mm3/stroke N/A N/A
6068 6068HPRNT7 I-6 6.8 Liters 248 kilowatt 1800 184.6 mm3/stroke 1316 N-m 1800 184.6 mm3/stroke N/A N/A