DAQ-2025-000275

DAQE-AN140600002-25

{{$d1 }}

Scott Roberts
TM Crushing, LLC
1850 North 1450 West
Lehi, UT 84043
[e-mail]

Dear Mr. Roberts:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN0140600001-07 for a
10-Year Review and Permit Updates
Project Number: N140600002

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. TM Crushing, LLC must
comply with the requirements of this AO, all applicable state requirements (R307), and Federal
Standards.

The project engineer for this action is Lucia Mason, 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:LM:jg

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

January 9, 2025

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

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{{#d1=date1_es_:signer1:date:format(date, "mmmm d, yyyy")}}
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APPROVAL ORDER
DAQE-AN140600002-25
Administrative Amendment to Approval Order
DAQE-AN0140600001-07 for a 10-Year Review
and Permit Updates

Prepared By
Lucia Mason, Engineer
[phone]
[e-mail]

Issued to
TM Crushing, LLC - Lake Mountain Pit

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

January 9, 2025
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 ..................................................................................................................... 8
ACRONYMS ................................................................................................................................. 9

DAQE-AN140600002-25
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
TM Crushing, LLC TM Crushing, LLC - Lake Mountain Pit

Mailing Address Physical Address
1850 North 1450 West 4000 South 300 West
Lehi, UT 84043 Saratoga Springs, UT 84043

Source Contact UTM Coordinates
Name: Nicki Coates 424,475 m Easting
Phone: [phone],460,398 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12
SIC code 1442 (Construction Sand & Gravel)

SOURCE INFORMATION
General Description
TM Crushing, LLC operates an aggregate processing plant at Lake Mountain Pit in Saratoga Springs in
Utah County. Equipment includes crushers, screens, conveyors, a sand screw, diesel-fired engines, and
off-highway mobile equipment. TM Crushing, LLC shall process up to 300,000 tons of aggregate
material and 65,000 tons of screened/washed sand annually.

NSR Classification
10-Year Review

Source Classification
Located in Southern Wasatch Front O3 NAA, Provo UT PM2.5 NAA
Utah County
Airs Source Size: B

Applicable Federal Standards
NSPS (Part 60), A: General Provisions
NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants
NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal
Combustion Engines
MACT (Part 63), A: General Provisions
MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines
Title V (Part 70) Area Source
DAQE-AN140600002-25
Page 4

Project Description
This project is a 10-year review of this source and the Approval Order associated with it.

SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 0 7297.00
Carbon Monoxide 0 4.49
Nitrogen Oxides 0 13.90
Particulate Matter - PM10 0 15.69
Particulate Matter - PM2.5 0 15.69
Sulfur Dioxide 0 2.80
Volatile Organic Compounds 0 0.87

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 five-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 five (5) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations,
review of operating and maintenance procedures, and inspection of the source. All maintenance
performed on equipment authorized by this AO shall be recorded. [R307-401-4]
I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories.
[R307-150]

DAQE-AN140600002-25
Page 5

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT II.A.1 Lake Mountain Pit
II.A.2 One (1) Jaw Crusher Rating: 600 tons per hour (tph) NSPS Subpart OOO
II.A.3 One (1) Cone Crusher Rating: 200 tph NSPS Subpart OOO
II.A.4 Two (2) Triple Deck Screens Rating: 250 tph NSPS Subpart OOO II.A.5 One (1) Sand Screw Rating: 75 tph
II.A.6 Two (2) Diesel Generators Generator A: Name plate rating: 700 kW Operational rating: 500 kW Generator B: Rating: 375 kW NSPS Subpart IIII MACT Subpart ZZZZ II.A.7 Various Conveyors and Stackers NSPS Subpart OOO
II.A.8 Miscellaneous Equipment Loaders Dozers Drills

DAQE-AN140600002-25
Page 6

SECTION II: SPECIAL PROVISIONS
II.B REQUIREMENTS AND LIMITATIONS

II.B.1 Site-wide Requirements
II.B.1.a The owner/operator shall not exceed the following production and operational limits:

A. 300,000 tons of aggregate processed per rolling 12-month period

B. 65,000 tons of screened/washed sand per rolling 12-month period

C. 200 tons per hour of aggregate processed

D. 12 hours of operation per day between 6:00 AM and 10:00 PM.

[R307-401-8]

II.B.1.a.1 To determine compliance with production/operational limits, the owner/operator shall: A. Determine production by supervisor monitoring and maintaining an operations log B. Calculate a new 12-month total by the 20th day of each month using data from the previous 12 months C. Keep records of production for all periods the plant is in operation D. Keep records of production on a daily basis. [R307-401-8]
II.B.1.b The owner/operator shall not exceed the opacity limits for the following points:

A. Crushers - 12 %

B. Screens - 7%

C. Conveyor transfer points - 7% opacity

D. Conveyor drop points - 20%

E. Diesel Engines - 20%

F. All other points - 20%.

[R307-312-4, R307-401-8]
II.B.1.b.1 Opacity emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8]
DAQE-AN140600002-25
Page 7

II.B.1.c The owner/operator shall install water sprays or chemical dust suppression sprays at the emission points below to comply with the opacity limits in this AO: A. All Crushers B. All screens C. All conveyor transfer points. [R307-401-8]
II.B.1.d The owner/operator shall use #1 and/or #2 fuel oil as fuel in the generator engines. [R307-401-8]
II.B.1.e The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD) in the generator engines. ULSD has a sulfur content of 15 ppm or less. [40 CFR 60 Subpart ZZZZ]
II.B.2 Haul Road and Fugitive Dust Requirements
II.B.2.a The owner/operator shall comply with all applicable requirements of R307-309 for PM2.5 non-attainment areas for fugitive emission and fugitive dust sources. In addition to addressing all applicable requirements in R307-309, the owner/operator shall also include a plant to test the silt loading of paved surfaces in the fugitive dust control plan. [R307-309, R307-401-8] II.B.2.b The owner/operator shall not exceed two (2) miles of haul roads. [R307-401-8]

II.B.2.c The owner/operator shall not allow visible emissions from haul-road traffic and mobile equipment in operational areas to exceed 20% opacity on site and 10% opacity at the property boundary. [R307-309-5, R307-401-8]
II.B.2.c.1 Visible emission determinations for fugitive dust from haul roads and operational areas 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 one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle.
[R307-309-5, R307-401-8]

II.B.2.d The owner/operator shall use water spray and/or chemical treatment on unpaved operational areas used by mobile equipment such that the surface is in a damp/moist condition unless the temperature is below freezing. The Director shall approve a chemical treatment plan if any chemical treatment is used. [R307-401-8]
II.B.2.d.1 The owner/operator shall keep records of the following regarding water spray/chemical treatment
when the plant is in operation:
A. Date and time of treatment

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

C. Rainfall received, if any, and approximate amount

D. Time of day treatments were made.

[R307-401-8]

II.B.2.e The owner/operator shall not exceed 1.5 acres of total area of storage piles with no more than 1.0 acre of storage piles. [R307-401-8]
DAQE-AN140600002-25
Page 8

II.B.2.f The owner/operator shall limit vehicle speed along the haul roads to 15 miles per hour. The owner/operator shall post vehicle speed on site at the start of the haul road such that it is clearly visible from the haul road. [R307-401-8] II.B.2.g The owner/operator shall not exceed 32 acres of open area and inactive storage piles without
prior approval from the Director. [R307-401-8]
II.B.2.h The owner/operator shall use water sprays and/or chemical treatment to control fugitive emissions from storage piles and unpaved operational areas, to comply with the opacity limits in this AO. Records of water and/or chemical treatment shall be kept for all periods when the plant is in operation. [R307-401-8]
II.B.2.i The owner/operator shall not exceed 25 g/m2 of silt loading on paved surfaces. [R307-401-8]
II.B.2.i.1 The owner/operator shall test for silt loading once a month while the plant is in operation and shall follow the procedure in Appendix C of Compilation of Air Pollution Emission Factors (AP-42). [R307-401-8]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN0140600001-07 dated November 30, 2007

DAQE-AN140600002-25
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-

RN140600002 December 12, 2024 Scott Roberts
TM Crushing, LLC 1850 North 1450 West Lehi, UT 84043
[e-mail] Dear Scott Roberts,
Re: Engineer Review - Administrative Amendment to Approval Order DAQE-AN0140600001-07, dated November 30, 2007, for a 10-Year Review and Permit Updates Project Number: N140600002 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. TM Crushing, LLC should complete this review within 10 business days of receipt. TM Crushing, LLC should contact Lucia Mason at [phone] if there are questions or concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email Lucia Mason 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 TM Crushing, LLC does not respond to this letter within 10 business days, the project will move forward without source concurrence. If TM Crushing, LLC has concerns that cannot be resolved and the project becomes stagnant, the DAQ Director may issue an Order prohibiting construction.
Approval Signature _____________________________________________________________ (Signature & Date)
195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144820 • Salt Lake City, UT 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
Printed on 100% recycled paper
Department of Environmental Quality
Kimberly D. Shelley Executive Director DIVISION OF AIR QUALITY Bryce C. Bird Director
State of Utah
SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 1
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION
Project Number N140600002 Owner Name TM Crushing, LLC Mailing Address 1850 North 1450 West
Lehi, UT, 84043 Source Name TM Crushing, LLC- Lake Mountain Pit
Source Location 4000 South 300 West Saratoga Springs, UT 84043
UTM Projection 424,475 m Easting, 4,460,398 m Northing UTM Datum NAD83 UTM Zone UTM Zone 12 SIC Code 1442 (Construction Sand & Gravel) Source Contact Nicki Coates Phone Number [phone] Email [e-mail] Billing Contact Nicki Coates Phone Number [phone]
Email [e-mail] Project Engineer Lucia Mason, Engineer
Phone Number [phone] Email [e-mail]
Notice of Intent (NOI) Submitted August 9, 2024 Date of Accepted Application November 4, 2024

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 2
SOURCE DESCRIPTION General Description
TM Crushing, LLC operates an aggregate processing plant at Lake Mountain Pit in Saratoga Springs in Utah County. Equipment includes crushers, screens, conveyors a sand screw, diesel fired engines, and off-highway mobile equipment. TM Crushing, LLC shall process up to
300,000 tons of aggregate material, and 65,000 tons of screened/washed sand annually. NSR Classification: 10 Year Review Source Classification Located in Southern Wasatch Front O3 NAA, Provo UT PM2.5 NAA Utah County Airs Source Size: B Applicable Federal Standards
NSPS (Part 60), A: General Provisions NSPS (Part 60), OOO: Standards of Performance for Nonmetallic Mineral Processing Plants NSPS (Part 60), IIII: Standards of Performance for Stationary Compression Ignition Internal
Combustion Engines MACT (Part 63), A: General Provisions MACT (Part 63), ZZZZ: National Emissions Standards for Hazardous Air Pollutants for
Stationary Reciprocating Internal Combustion Engines Title V (Part 70) Area Source Project Proposal Administrative Amendment to Approval Order DAQE-AN0140600001-07, dated November 30, 2007, for a 10-Year Review and Permit Updates
Project Description This project is a 10-year review of this source and the Approval Order associated with it. EMISSION IMPACT ANALYSIS
This is a 10-year review. There are no changes to equipment or emissions at this time. Therefore, no modeling
is required. [Last updated November 4, 2024]

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 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) CO2 Equivalent 0 7297.00 Carbon Monoxide 0 4.49
Nitrogen Oxides 0 13.90
Particulate Matter - PM10 0 15.69
Particulate Matter - PM2.5 0 15.69
Sulfur Dioxide 0 2.80
Volatile Organic Compounds 0 0.87 Note: Change in emissions indicates the difference between previous AO and proposed modification.

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 4
Review of BACT for New/Modified Emission Units 1. BACT review regarding 10-Year Review
This is a 10-year review. There are no changes to equipment or emissions at this time. Therefore, a BACT analysis is not required. [Last updated November 4, 2024]
SECTION I: GENERAL PROVISIONS
The intent is to issue an air quality AO authorizing the project with the following recommended conditions and that failure to comply with any of the conditions may constitute a violation of the AO. (New or Modified conditions are indicated as “New” in the Outline Label):

I.1 All definitions, terms, abbreviations, and references used in this AO conform to those used in the UAC R307 and 40 CFR. Unless noted otherwise, references cited in these AO conditions refer to those rules. [R307-101]
I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]
I.3 Modifications to the equipment or processes approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1]
I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the two-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records
shall be kept for a minimum of five (5) 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 N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 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 Lake Mountain Pit

II.A.2 NEW One (1) Jaw Crusher Rating: 600 tons per hour (tph) NSPS Subpart OOO

II.A.3 NEW One (1) Cone Crusher Rating: 200 tph NSPS Subpart OOO

II.A.4 NEW Two (2) Triple Deck Screens Rating: 250 tph NSPS Subpart OOO

II.A.5 NEW One (1) Sand Screw Rating: 75 tph
II.A.6 NEW Two (2) Diesel Generators Generator A: Name plate rating: 700 kW Operational rating: 500 kW Generator B: Rating: 375 kW
NSPS Subpart IIII MACT Subpart ZZZZ

II.A.7 NEW Various Conveyors and Stackers NSPS Subpart OOO

II.A.8
NEW
Miscellaneous Equipment
Loaders Dozers Drills

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 6
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 NEW Site-wide Requirements
II.B.1.a NEW The owner/operator shall not exceed the following production and operational limits: A. 300,000 tons of aggregate processed per rolling 12-month period
B. 65,000 tons of screened/washed sand per rolling 12-month period
C. 200 tons per hour of aggregate processed
D. 12 hours of operation per day between 6:00AM and 10 PM [R307-401-8]
II.B.1.a.1 NEW To determine compliance with production/operational limits the owner/operator shall: A. Determine production by supervisor monitoring and maintaining an
operations log
B. Calculate a new 12-month total by the 20th day of each month using data from the
previous 12 months
C. Keep records of production for all periods the plant is in operation
D. Keep records of production on a daily basis
[R307-401-8]
II.B.1.b NEW The owner/operator shall not exceed the opacity limits for the following points:
A. Crushers - 12 %
B. Screens - 7% C. Conveyor transfer points - 7% opacity D. Conveyor drop points - 20% E. Diesel Engines - 20%
F. All other points - 20%
[R307-312-4, R307-401-8]

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 7
II.B.1.b.1 NEW Opacity emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8]
II.B.1.c NEW The owner/operator shall install water sprays or chemical dust suppression sprays at the emission points below to comply with the opacity limits in this AO:
A. All Crushers
B. All screens C. All conveyor transfer points [R307-401-8]
II.B.1.d NEW The owner/operator shall use #1 and/or #2 fuel oil as fuel in the generator engines. [R307-401-8]

II.B.1.e NEW The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD) in the generator engines. ULSD has a sulfur content of 15 ppm or less. [40 CFR 60 Subpart ZZZZ]

II.B.2 NEW Haul Road and Fugitive Dust Requirements
II.B.2.a NEW The owner/operator shall comply with all applicable requirements of R307-309 for PM2.5 non-attainment areas for fugitive emission and fugitive dust sources. In addition to addressing all applicable requirements in R307-309, the owner/operator shall also include a plant to test the silt loading of paved surfaces in the fugitive dust control plan. [R307-309, R307-401-8] II.B.2.b NEW The owner/operator shall not exceed two (2) miles of haul roads. [R307-401-8]
II.B.2.c NEW The owner/operator shall not allow visible emissions from haul-road traffic and mobile equipment in operational areas to exceed 20% opacity on site and 10% opacity at the property boundary. [R307-309-5, R307-401-8]
II.B.2.c.1 NEW Visible emission determinations for fugitive dust from haul roads and operational areas 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 one-half vehicle length behind the vehicle and not less than one-half the height of the vehicle. [R307-309-5, R307-401-8]
II.B.2.d NEW The owner/operator shall use water spray and/or chemical treatment on unpaved operational areas used by mobile equipment such that the surface is in a damp/moist condition unless the
temperature is below freezing. The Director shall approve a chemical treatment plan if any chemical treatment is used. [R307-401-8]

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 8
II.B.2.d.1 NEW The owner/operator shall keep records of the following regarding water spray/chemical treatment when the plant is in operation: A. Date and time of treatment B. Number of treatments made, dilution ratio, and quantity
C. Rainfall received, if any, and approximate amount
D. Time of day treatments were made
[R307-401-8]
II.B.2.e
NEW
The owner/operator shall not exceed 1.5 acres of total area of storage piles with no more than
1.0 acre of storage piles. [R307-401-8] II.B.2.f NEW The owner/operator shall limit vehicle speed along the haul roads to 15 miles per hour. The owner/operator shall post vehicle speed on site at the start of the haul road such that it is clearly visible from the haul road. [R307-401-8] II.B.2.g NEW The owner/operator shall not exceed 32 acres of open area and inactive storage piles without prior approval from the Director. [R307-401-8]
II.B.2.h
NEW
The owner/operator shall use water sprays and/or chemical treatment to control fugitive
emissions from storage piles and unpaved operational areas, to comply with the opacity limits in this AO. Records of water and/or chemical treatment shall be kept for all periods when the plant is in operation. [R307-401-8]
II.B.2.i NEW The owner/operator shall not exceed 25 g/m2 of silt loading on paved surfaces. [R307-401-8] II.B.2.i.1 NEW The owner/operator shall test for silt loading once a month while the plant is in operation and shall follow the procedure in Appendix C of Compilation of Air Pollution Emission Factors (AP-42). [R307-401-8]

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 9
PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the
following documents: Supersedes AO DAQE-AN0140600001-07 dated November 30, 2007
REVIEWER COMMENTS
1. Comment regarding 10-Year Review:
This is a 10-year review. The language and formatting of this AO have been updated to reflect the style of modern permits. PTE values and the approved equipment list have been moved to respective new sections. All contact information has been updated. The source is not modifying and/or installing any equipment. The opacity limits in condition II.B.1.b have been updated according to R307-312-4. The PTE for PM2.5 and CO2e were not specified in the previous AO (DAQE-AN0140600001-07, dated November 30, 2007) and have been added to the Summary of Emissions. For a conservative estimate, the PTE of PM2.5 was set equal to the PTE of PM10 (15.69 tpy). CO2e was calculated based
on 700 kW for engine A, 375 kW for engine B and 8,760 annual operational hours for both engines. CO2e emission factors and global warming potentials were sourced from AP-42 Table 3.3-1 & Table 3.4-1. There are no other changes to the emission estimates at this time.
[Last updated November 19, 2024] 2. Comment regarding Compliance Review: According to compliance report DAQC-1366-14, dated November 10, 2014, this facility temporarily ceased operations. On October 17, 2024, the source confirmed over the phone that some equipment is still on site, and they would therefore like to keep their AO. The source will need to notify the DAQ if any equipment not permitted in this AO is brought on site. The source will also be subject to
an annual aggregate fee and inspection check-ins. Lastly, the source should note that they will be subject to conditions II.B.2.i and II.B.2.i.1 regarding silt loading. [Last updated December 2, 2024] 3. Comment regarding Federal Standard Applicability: NSPS, 40 CFR 60 NSPS Subpart OOO (Standards of Performance for Nonmetallic Mineral Processing Plants) applies to facilities that operate crushers, screens and belt conveyors among other aggregate processing equipment. The facility includes crushers, screens and other aggregate processing equipment.
Therefore, Subpart OOO applies.
Subpart IIII (Standards of Performance for Stationary Compression Ignition Internal Combustion Engines) applies to compression ignition internal combustion engines. Subpart IIII applies to non-fire pump engines where the model year is 2007 or later. The diesel generators listed in Equipment ID II.A.5 were first permitted in AO DAQE-AN0140600001-07, dated November 7th, 2007. Thus, the engines are assumed to have been manufactured after 2007 and Subpart IIII applies.

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 2024 Page 10
NESHAP, 40 CFR 61 There are no applicable NESHAP subparts.
MACT, 40 CFR 63 MACT Subpart ZZZZ (National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines) applies to facilities which operate reciprocating internal combustion engines. The two generators at the facility fall under this definition. Thus, Subpart ZZZZ
applies.
[Last updated December 2, 2024] 4. Comment regarding Title V Applicability:
Title V of the 1990 Clean Air Act (Title V) applies to the following:
1. Any major source 2. Any source subject to a standard, limitation, or other requirement under Section 111 of the Act, Standards of Performance for New Stationary Sources; 3. Any source subject to a standard or other requirement under Section 112 of the Act, Hazardous Air Pollutants. 4. Any Title IV affected source. This facility is not a major source and is not a Title IV source. However, the facility is subject to 40 CFR 60 (NSPS) Subparts OOO under Section 111 of the Act. Therefore, Title V regulations apply to
the facility as an area source. [Last updated December 2, 2024]

Engineer Review N140600002: TM Crushing, LLC- Lake Mountain Pit December 12, 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
SUMMARY
Green House Gas Pollutant Engine #1 Engine #2 Total
CO2 (mass basis)4,766 2,531 7,297
Methane (mass basis)0 0 0
CO2e 4,772 2,531 7,303
TPY
Equipment Details
Rating 938 hp = (700 kw)
Operational Hours 8,760 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 22.51 98.60
CO 5.50E-03 5.16 22.60
PM10 7.00E-04 0.66 2.88
PM2.5 7.00E-04 0.66 2.88
VOC 6.42E-04 0.60 2.64
SO2 1.21E-05 0.01 0.05 AP-42 Table 3.4-1
HAP 0.01 0.05 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 1,088 4,766
Methane (mass basis)25 6.35E-05 0.060 0.26CO2e4,772
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 7.76E-04 5.10E-03 2.23E-02
Toluene 2.81E-04 1.85E-03 8.08E-03
Xylenes 1.93E-04 1.27E-03 5.55E-03
Formaldehyde 7.89E-05 5.18E-04 2.27E-03
Acetaldehyde 2.52E-05 1.65E-04 7.25E-04
Acrolein 7.88E-06 5.17E-05 2.27E-04
Naphthalene 1.30E-04 8.54E-04 3.74E-03
Acenaphthylene 9.23E-06 6.06E-05 2.65E-04
Acenaphthene 4.68E-06 3.07E-05 1.35E-04
Fluorene 1.28E-05 8.40E-05 3.68E-04Phenanthrene4.08E-05 2.68E-04 1.17E-03
Anthracene 1.23E-06 8.08E-06 3.54E-05
Fluoranthene 4.03E-06 2.65E-05 1.16E-04
Pyrene 3.71E-06 2.44E-05 1.07E-04
Benz(a)anthracene 6.22E-07 4.08E-06 1.79E-05
Chrysene 1.53E-06 1.00E-05 4.40E-05
Benzo(b)fluoranthene 1.11E-06 7.29E-06 3.19E-05
Benzo(k)fluoranthene 2.18E-07 1.43E-06 6.27E-06
Benzo(a)pyrene 2.57E-07 1.69E-06 7.39E-06
Indeno(1,2,3-cd)pyrene 4.14E-07 2.72E-06 1.19E-05
Dibenz(a,h)anthracene 3.46E-07 2.27E-06 9.95E-06Benzo(g,h,l)perylene 5.56E-07 3.65E-06 1.60E-05
Emission Factor
(lb/MMBtu)
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
Emergency Engines should
equal 100 hours of operation
per year
Manufacturer Data,
AP-42 Table 3.3-1,
& Table 3.4-1
AP-42 Table 3.3-1
& Table 3.4-1
Page 2 of 3 Version 1.1
February 21, 2019
Equipment Details
Rating 503 hp = (375 kw)
Operational Hours 8,760 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 0.031 15.58 68.23
CO 6.68E-03 3.36 14.70
PM10 2.20E-03 1.11 4.84
PM2.5 2.20E-03 1.11 4.84
VOC 2.51E-03 1.26 5.53
SO2 1.21E-05 0.01 0.03 AP-42 Table 3.4-1
HAP 0.01 0.06 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 1.15 578 2,531
Methane (mass basis)25 0 0CO2e2,531
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 9.33E-04 3.28E-03 1.44E-02
Toluene 4.09E-04 1.44E-03 6.30E-03
Xylenes 2.85E-04 1.00E-03 4.39E-031,3-Butadiene 3.91E-05 1.38E-04 6.02E-04
Formaldehyde 1.18E-03 4.15E-03 1.82E-02
Acetaldehyde 7.67E-04 2.70E-03 1.18E-02
Acrolein 9.25E-05 3.25E-04 1.43E-03
Naphthalene 8.48E-05 2.98E-04 1.31E-03
Acenaphthylene 5.06E-06 1.78E-05 7.80E-05
Acenaphthene 1.42E-06 4.99E-06 2.19E-05
Fluorene 2.92E-05 1.03E-04 4.50E-04Phenanthrene2.94E-05 1.03E-04 4.53E-04
Anthracene 1.87E-06 6.58E-06 2.88E-05
Fluoranthene 7.61E-06 2.68E-05 1.17E-04
Pyrene 4.78E-06 1.68E-05 7.36E-05
Benz(a)anthracene 1.68E-06 5.91E-06 2.59E-05
Chrysene 3.53E-07 1.24E-06 5.44E-06
Benzo(b)fluoranthene 9.91E-08 3.49E-07 1.53E-06
Benzo(k)fluoranthene 1.55E-07 5.45E-07 2.39E-06Benzo(a)pyrene 1.88E-07 6.61E-07 2.90E-06
Indeno(1,2,3-cd)pyrene 3.75E-07 1.32E-06 5.78E-06
Dibenz(a,h)anthracene 5.83E-07 2.05E-06 8.98E-06Benzo(g,h,l)perylene 4.89E-07 1.72E-06 7.53E-06
Emission Factor
(lb/MMBtu)
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
Emergency Engines should
equal 100 hours of operation
per year
Manufacturer Data,
AP-42 Table 3.3-1,
& Table 3.4-1
AP-42 Table 3.3-1
& Table 3.4-1
Page 3 of 3 Version 1.1
February 21, 2019
Lucia Mason <[e-mail]>
Permit Revocation? 14060: TM Crushing, LLC- Lake Mountain Pit
9 messages
Lucia Mason <[e-mail]>Tue, Aug 20, 2024 at 4:36 PM
To: [e-mail]
Hi Nicki,
From our conversation on the phone earlier today it sounds like there is no equipment on site and no plans to continue operations at TM Crushing's Lake Mountain Pit. If
you confirm in writing that the facility is no longer operating and has no plans to continue operation I can revoke the associated permit (DAQE-AN0140600001-07) now if
you're interested.
Let me know,
Lucia
Lucia Mason <[e-mail]>Tue, Sep 3, 2024 at 10:16 AM
To: [e-mail]
Hi Nicki,
I'm checking in to make sure you got my first email. Please let me know if you have any questions.
Thanks,
Lucia
[Quoted text hidden]
Nicki Coates <[e-mail]>Tue, Sep 3, 2024 at 3:21 PM
To: Lucia Mason <[e-mail]>
Lucia,

Sorry for the delay in getting back to you. I would like to discuss this further with the owner and the operations manager before we close this permit. But
currently we do not have any equipment on site, and we haven’t operated that pit in several years. I will have a more definite answer in the next couple
of weeks.
Is there anyway I can get a list of open permits TM Crushing has? I would like to move forward closing some of them that we are no longer operating.

11/5/24, 5:18 PM State of Utah Mail - Permit Revocation? 14060: TM Crushing, LLC- Lake Mountain Pit
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r7154222954321482758&simpl=msg-a:r-7795146359407445382&simpl=msg-a:r8489190524614424698&sim…1/5
You don't often get email from [e-mail]. Learn why this is important
Thanks
Nicki

From: Lucia Mason <[e-mail]>
Sent: Tuesday, September 3, 2024 10:17 AM
To: Nicki Coates <[e-mail]>
Subject: Re: Permit Revocaon? 14060: TM Crushing, LLC- Lake Mountain Pit

[Quoted text hidden]
Lucia Mason <[e-mail]>Tue, Sep 3, 2024 at 3:52 PM
To: Nicki Coates <[e-mail]>
Hi Nicki,
Sounds good. Let me know when you have a definite answer. I'll reach out again in a month to see if there are any updates.
The Approval Orders owned by TM Crushing are listed in the table below.
Thanks for your time,
Lucia
ID Agency Interest Locaon Relaonship Start Date
14446 TM Crushing, LLC - Talons Cove Aggregate Plant
The Intersecon of Mt. Airey Drive and SR 73
Eagle Mountain, UT 84005 Owns 2/9/2012
14243 TM Crushing, LLC- West Jordan Pit
7604 South Highway 111
West Jordan, UT 84044 Owns 7/30/2009
14060 TM Crushing, LLC- Lake Mountain Pit
4000 South 300 West
Saratoga Springs, UT 84043 Owns 7/19/2024
13244 TM Crushing, LLC- Portable Aggregate Equipment
Not permanently based at a site
Portable Source, UT Owns 11/6/2006
16213 TM Crushing, LLC- Stansbury Island Pit
Stansbury Island
Tooele County, UT Owns 4/26/2024
11/5/24, 5:18 PM State of Utah Mail - Permit Revocation? 14060: TM Crushing, LLC- Lake Mountain Pit
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r7154222954321482758&simpl=msg-a:r-7795146359407445382&simpl=msg-a:r8489190524614424698&sim…2/5
15927 TM Crushing, LLC- Glenwood Gravel Pit
7148 South Bacchus Highway
West Jordan, UT 84081 Owns 2/27/2018
[Quoted text hidden]
Lucia Mason <[e-mail]>Wed, Oct 9, 2024 at 3:03 PM
To: Nicki Coates <[e-mail]>
Hi Nicki,
I'm checking in to see if you have more information about the status of site 14060.
Let me know,
Lucia
[Quoted text hidden]
Lucia Mason <[e-mail]>Thu, Oct 17, 2024 at 2:16 PM
To: Nicki Coates <[e-mail]>
Hi Nicki,
As per our phone conversation earlier today, TM Crushing would like to keep the AO for site 14060. Accordingly, the DAQ is proceeding with periodic permit updates on the
AO. Please confirm the following contact information for the permit update:
1. Site: physical address, phone number, and email (if applicable)
2. Company: physical address, billing address, phone number, fax number (if applicable) and email
3. Environmental contact: physical address, mailing address, phone number, fax number (if applicable) and email
4. Billing contact: (if different from environmental contact): physical address, phone number, fax number (if applicable) and email
5. Name on Approval Order: (if different from environmental contact): physical address, mailing address, phone number, fax number (if applicable) and email
Thanks,
Lucia
[Quoted text hidden]
Lucia Mason <[e-mail]>Mon, Nov 4, 2024 at 12:49 PM
To: Nicki Coates <[e-mail]>
11/5/24, 5:18 PM State of Utah Mail - Permit Revocation? 14060: TM Crushing, LLC- Lake Mountain Pit
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r7154222954321482758&simpl=msg-a:r-7795146359407445382&simpl=msg-a:r8489190524614424698&sim…3/5
Hey Nicki,
I'm checking in about TM Crushing's updated contact information. Please return the contact information requested in my previous email.
Thanks,
Lucia
[Quoted text hidden]
Nicki Coates <[e-mail]>Mon, Nov 4, 2024 at 1:59 PM
To: Lucia Mason <[e-mail]>
Cc: Joe Johnson <[e-mail]>
Lucia,

See below the updated information. Let me know if you have any questions.

Thanks Nicki
Hi Nicki,

As per our phone conversation earlier today, TM Crushing would like to keep the AO for site 14060. Accordingly, the DAQ is proceeding with periodic permit updates on
the AO. Please confirm the following contact information for the permit update:
1. Site: physical address, phone number, and email (if applicable) 4000 South 300 West
Saratoga Springs, UT 84043 phone: [phone]
2. Company: physical address, billing address, phone number, fax number (if applicable) and email 1850 N. 1450 W. Lehi Ut 84043 phone: 801-766-
7611 Fax: [phone]
3. Environmental contact: physical address, mailing address, phone number, fax number (if applicable) and email Nicki Coates 1850 N. 1450 W. Lehi Ut
84043 Cell phone: [phone] Email: [e-mail]
4. Billing contact: (if different from environmental contact): physical address, phone number, fax number (if applicable) and email
1850 N. 1450 W. Lehi UT 84043 phone: [phone] Fax: [phone] email: [e-mail]
5. Name on Approval Order: (if different from environmental contact): physical address, mailing address, phone number, fax number (if applicable) and
email Scott Roberts Address: 1850 N. 1450 W. Lehi UT 84043 phone: [phone]
Thanks,

11/5/24, 5:18 PM State of Utah Mail - Permit Revocation? 14060: TM Crushing, LLC- Lake Mountain Pit
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r7154222954321482758&simpl=msg-a:r-7795146359407445382&simpl=msg-a:r8489190524614424698&sim…4/5
Lucia
[Quoted text hidden]
Lucia Mason <[e-mail]>Mon, Nov 4, 2024 at 2:22 PM
To: Nicki Coates <[e-mail]>
Thank you!
[Quoted text hidden]
11/5/24, 5:18 PM State of Utah Mail - Permit Revocation? 14060: TM Crushing, LLC- Lake Mountain Pit
https://mail.google.com/mail/u/0/?ik=509389cc4c&view=pt&search=all&permthid=thread-a:r7154222954321482758&simpl=msg-a:r-7795146359407445382&simpl=msg-a:r8489190524614424698&sim…5/5