DAQ-2025-001130

DAQE-AN100210011-25

{{$d1 }}

Grant Ensign
Geneva Rock Products, Inc.
1565 West 400 North
Orem, UT 84057
[e-mail]

Dear Mr. Ensign:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN100210008-24 Under
R307-401-12 Reduction in Air Pollutants
Project Number: N100210011

The attached Approval Order (AO) is issued pursuant to the Notice of Intent (NOI) received on
November 22, 2024. Geneva Rock Products, Inc. must comply with the requirements of this AO, all
applicable state requirements (R307), and Federal Standards.

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

Sincerely,

{{$s }}

Bryce C. Bird
Director

BCB:KA:jg

cc: Bear River Health Department

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

SPENCER J. COX
Governor
DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

February 20, 2025

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

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APPROVAL ORDER
DAQE-AN100210011-25
Administrative Amendment to Approval Order
DAQE-AN100210008-24 Under R307-401-12 Reduction
in Air Pollutants

Prepared By
Katie Andersen, Engineer
[phone]
[e-mail]

Issued to
Geneva Rock Products, Inc. - Perry Sand & Gravel Pit

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

February 20, 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 ................................................................................................................... 11
ACRONYMS ............................................................................................................................... 12

DAQE-AN100210011-25
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Geneva Rock Products, Inc. Geneva Rock Products, Inc. - Perry Sand & Gravel Pit

Mailing Address Physical Address
1565 West 400 North 600 West 3000 South
Orem, UT 84057 Perry, UT 84320

Source Contact UTM Coordinates
Name: Grant Ensign 413,777 m Easting
Phone: [phone],589,876 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12
SIC code 1442 (Construction Sand & Gravel)

SOURCE INFORMATION
General Description
Geneva Rock Products, Inc. operates a concrete batch plant, aggregate mining, and processing facility
called Perry Sand & Gravel Pit in Perry, Box Elder County. The facility consists of the concrete batch
plant, various storage silos, various baghouses, two (2) crushers, one (1) sizing screen, one (1) wash
screen, one (1) sand screw, various conveyors and stackers, two (2) diesel storage tanks, and one (1)
560-horsepower generator.

NSR Classification
Administrative Amendment
Source Classification
Located in Salt Lake City UT PM2.5 NAA
Box Elder 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-AN100210011-25
Page 4

Project Description
Geneva Rocks Products, Inc. has requested the following changes to Approval Order
DAQE-AN100210008-24:

1. Update Condition II.B.4.a to reduce the hours of operation of the existing 560-horsepower diesel
generator (Equipment ID# II.A.6) from 3,600 hours per rolling 12-month period to 3,215 hours per rolling
12-month period.

2. Add one (1) new jaw crusher with a 500 tons per hour capacity.

Emissions for this source were recalculated using the current AP-42 emission factors because the last
emission update was before 2005. The updated emissions were calculated based on the current operation
and result in a paper increase of PM10 emissions. Applying the above changes results in an actual decrease
in all pollutant emissions. These changes result in the following decreases: 3.34 tpy of NOx, 0.72 tpy of
CO, 0.04 tpy of PM10, 0.20 tpy of PM2.5, and 0.27 tpy of VOCs.

No emissions are increasing. This project meets the requirements of UAC R307-401-12 Reduction in Air
Pollutants and does not require a public comment period.

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 -123.77 1035.23
Carbon Monoxide -1.60 6.01
Nitrogen Oxides -1.92 27.91
Particulate Matter - PM10 2.49 12.66
Particulate Matter - PM2.5 -6.82 3.35
Sulfur Dioxide -2.28 0.01
Volatile Organic Compounds -0.27 2.26

Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Generic HAPs (CAS #GHAPS) -520 40
Change (TPY) Total (TPY)
Total HAPs -0.26 0.02

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]
DAQE-AN100210011-25
Page 5

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]
I.3 Modifications to the equipment or processes approved by this AO that could affect the emissions covered by this AO must be reviewed and approved. [R307-401-1]
I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the two-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of two (2) years. [R307-401-8] I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations,
review of operating and maintenance procedures, and inspection of the source. All maintenance
performed on equipment authorized by this AO shall be recorded. [R307-401-4]
I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18]

SECTION II: PERMITTED EQUIPMENT
II.A THE APPROVED EQUIPMENT II.A.1 Perry Sand & Gravel Pit
II.A.2 One (1) Concrete Batch Plant Capacity: 250 cubic yards per hour II.A.3 One (1) Cement Storage Silo Control Device: Bin Vent
II.A.4 One (1) Fly Ash Storage Silo Control Device: Bin Vent II.A.5 One (1) Truck Loading Baghouse Location: Concrete Truck Loading Station
II.A.6 One (1) 560-Horsepower Diesel Generator
DAQE-AN100210011-25
Page 6

II.A.7 One (1) Cone Crusher Capacity: 150 tons per hour II.A.8 One (1) Jaw Crusher (NEW) Capacity: 500 tons per hour

II.A.9 One (1) Sizing Screen Capacity: 300 tons per hour
II.A.10 One (1) Wash Screen
II.A.11 One (1) Sand Screw
II.A.12 Associated Conveyors and Stackers
II.A.13 One (1) Diesel Storage Tank Capacity: 8,000 gallons II.A.14 One (1) Diesel Storage Tank
Capacity: 12,000 gallons

SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS

II.B.1 The Perry Sand & Gravel Pit shall be subject to the following:
II.B.1.a Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions from any source on site to exceed 20% opacity. [R307-401-8]

II.B.1.a.1 Unless otherwise specified in this AO, opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8]
II.B.1.b The owner/operator shall not produce more than the following:
A. 750,000 tons of aggregate processed through the crushing/screening plant per
rolling 12-month period
B. 200,000 tons of aggregate harvested from the bank run (in addition to item A
above) & directly transported off-site per rolling 12-month period.
[R307-401-8]

DAQE-AN100210011-25
Page 7

II.B.1.b.1 The owner/operator shall: A. Determine production by weighing products as they exit/enter the site B. Record the weight of each truck as it enters the site and the weight of the truck as it leaves the site C. Record production on a daily basis D. Use the production data to calculate a new rolling 12-month total by the 20th data of each month using data from the previous 12 months E. Keep production records for all periods the plant is in operation. [R307-401-8]
II.B.1.c The owner/operator shall not operate the aggregate crushing/screening operations for more than
3,600 hours per rolling 12-month period. [R307-401-8]
II.B.1.c.1 The owner/operator shall: A. Determine hours of operation by supervisor monitoring and maintaining of an operations log B. Use the hours of operation to calculate a new rolling 12-month total by the 20th day of each month using data from the previous 12 months. [R307-401-8]
II.B.2 The Concrete Batch Plant and Associated Equipment shall be subject to the following:
II.B.2.a The owner/operator shall not allow visible emissions from the concrete batch plant to exceed 7% opacity. [R307-312-4]
II.B.2.b The owner/operator shall not produce more than 100,000 cubic yards of concrete per rolling
12-month period. [R307-401-8]
II.B.2.b.1 The owner/operator shall: A. Determine production by weighing products as they exit/enter the site B. Record the weight of each truck as it enters the site and the weight of each truck as it leaves the site C. Record production on a daily basis D. Use the production data to calculate a new rolling 12-month total by the 20th day of each month using data from the previous 12 months E. Keep production records of all periods the plant is in operation. [R307-401-8]
II.B.2.c The owner/operator shall not operate the concrete batch plant for more than 2,000 hours per
rolling 12-month period. [R307-401-8]

DAQE-AN100210011-25
Page 8

II.B.2.c.1 The owner/operator shall: A. Determine hours of operation by supervisor monitoring and maintaining of an operations log B. Use the hours of operation to calculate a new rolling 12-month total by the 20th day of each month using data from the previous 12 months. [R307-401-8] II.B.2.d The owner/operator shall control particulate emissions from the cement storage silo and the fly
ash storage silo with two (2) bin vents that utilize fabric filter media. [R307-401-8]
II.B.2.e The owner/operator shall use a loading shroud at the truck loading station to further prevent particulate emissions from this area. [R307-401-8] II.B.3 The Baghouse shall be subject to the following:
II.B.3.a The owner/operator shall control particulate emissions from the concrete truck loading station with a baghouse. [R307-401-8] II.B.3.b The owner/operator shall install a manometer or magnehelic pressure gauge to measure the static
pressure drop across the baghouse. [R307-401-8]

II.B.3.b.1 The pressure gauge shall be located such that an inspector/operator can safely read the indicator at any time. [R307-401-8]
II.B.3.b.2 The pressure gauge shall measure the pressure drop in 1-inch water column increments or less. [R307-401-8]

II.B.3.c During operation of the baghouse, the owner/operator shall maintain the static pressure drop across the baghouse between two (2) and six (6) inches of water column. [R307-401-8]
II.B.3.c.1 The owner/operator shall record the pressure drop at least once per operating day while the
baghouse is operating. [R307-401-8]
II.B.3.c.2 The owner/operator shall maintain the following records of the pressure drop readings: A. Unit identification; B. Date of reading; C. Daily static pressure drop readings. [R307-401-8]
II.B.3.d At least once every 12 months, the owner/operator shall calibrate the pressure gauge against a
primary standard. [R307-401-8]

II.B.3.e The owner/operator shall not allow visible emissions from the baghouse to exceed 7% opacity. [R307-312-4]
II.B.4 The Diesel Generator shall be subject to the following:
II.B.4.a The owner/operator shall not operate the 560-horsepower diesel generator for more than 3,215 hours per rolling 12-month period. [R307-401-8]
DAQE-AN100210011-25
Page 9

II.B.4.a.1 The owner/operator shall: A. Determine the hours of operation by supervisor monitoring and maintaining of 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. Record hours of operation on a daily basis D. Keep hours of operation records for all periods the plant is in operation. [R307-401-8]
II.B.4.b The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD), which has a sulfur content of 15 ppm or less.
[40 CFR 63 Subpart ZZZZ, R307-401-8]

II.B.4.b.1 The sulfur content of any fuel oil or diesel fuel shall be determined by ASTM Methods D4294-89 or approved equivalent. Certification of fuels shall be either by the owner/operator's own testing or by test reports from the fuel oil or diesel fuel marketer. Records of fuel supplier's test report on sulfur content shall be available on-site for each load delivered. [R307-203]
II.B.5 All Haul Roads and Fugitive Dust Sources shall be subject to the following:
II.B.5.a The owner/operator shall comply with a fugitive dust control plan (FDCP) acceptable to the Director for control of all dust sources on site. This plan shall contain sufficient controls to prevent an increase in PM10 emissions above those modeled for this AO. The limitations and conditions in the FDCP shall not be changed without prior approval in accordance with R307-401. [R307-309-6]
II.B.5.b The owner/operator shall not allow visible emissions from haul roads and fugitive dust sources to
exceed 20% opacity on site and 10% opacity at the property boundary. [R307-309-5]
II.B.5.b.1 Visible emission determinations for fugitive dust emissions from haul-road traffic and mobile equipment in operational areas shall use procedures similar to Method 9; however, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. Visible emissions shall be measured at a point not less than 1/2 vehicle length behind the vehicle and not less than 1/2 the height of the vehicle. [R307-309-5, R307-401-8] II.B.5.c The owner/operator shall use water application and/or chemical treatment on all unpaved haul
roads and other unpaved operational areas that are used by mobile equipment to maintain opacity
limits listed in this AO. If the temperature is below freezing, the owner/operator may stop applying water and/or chemical treatment to the unpaved haul roads and other unpaved
operational areas that are used by mobile equipment. The owner/operator shall resume applying
water and/or chemical treatment to the unpaved haul roads and other unpaved operational areas
that are used by mobile equipment when the temperature is above freezing. If chemical treatment
is to be used, the plan must be approved by the Director. [R307-401-8]

DAQE-AN100210011-25
Page 10

II.B.5.c.1 The owner/operator shall keep records of treatment for all periods when the plant is in operation. The records shall include the following items: A. Date and time treatments were made B. Number of treatments made, chemical dilution ratio used, and quantity of water applied C. Rainfall amount received, if any, and approximate amount D. Temperature, if the temperature is below freezing. [R307-401-8]
II.B.5.d The owner/operator shall not exceed a total haul road (paved and unpaved) length of 0.6 miles. [R307-401-8]

II.B.5.d.1 The owner/operator shall: A. Determine the total haul road (paved and unpaved) length through GPS measurements or aerial photos B. Record the total haul road (paved and unpaved) length once every 12 months C. Keep records of the total haul road (paved and unpaved) length for all periods the plant is in operation. [R307-401-8]
II.B.5.e The owner/operator shall not exceed a haul road speed limit of 25 miles per hour. The haul road
speed shall be posted, at a minimum, on site at the beginning of the haul road so that it is clearly visible from the haul road. [R307-401-8]

II.B.5.f The access haul road(s) to State Highway 89 & affected areas of State Highway 89 that are paved shall be periodically swept or sprayed clean as dry conditions warrant or as determined necessary by the Director. [R307-309]
II.B.5.f.1 The owner/operator shall keep records of cleaning paved roads. [R307-401]
II.B.5.g The owner/operator shall use water application for all storage piles to minimize fugitive dust, as dry conditions warrant or as determined necessary by the Director. [R307-401-8] II.B.5.g.1 The owner/operator shall keep records of water and/or chemical treatment. [R307-401-8]

II.B.5.h The owner/operator shall control all disturbed or stripped areas on site at all times for the duration of the project/operation. [R307-309]

DAQE-AN100210011-25
Page 11

II.B.6 All Crushers, Screens, and Conveyors shall be subject to the following: II.B.6.a The owner/operator shall not allow visible emissions from the following emission points to
exceed the following values: A. All crushers - 12% opacity
B. All screens - 7% opacity
C. All conveyor transfer points - 7% opacity D. All conveyor drop points - 20% opacity.
[R307-312-4, R307-401-8]
II.B.6.b The owner/operator shall install water sprays on all crushers, screens, and conveyor transfer points on site to control fugitive emissions. Sprays shall operate whenever dry conditions warrant or as determined necessary by the Director. [R307-401-8]
II.B.6.c The owner/operator shall conduct an initial performance test for each crusher, screen, and conveyor transfer point on site. Performance tests shall demonstrate compliance with the
limitations specified in Table 3 to Subpart OOO. [40 CFR 60 Subpart OOO]

II.B.6.c.1 Initial performance tests for fugitive emissions limits shall be conducted according to 40 CFR 60.675(c). The owner or operator may use methods and procedures specified in 40 CFR 60.675(e) as alternatives to the reference methods and procedures specified in 40 CFR 60.675(c). [40 CFR 60 Subpart OOO]
II.B.6.d The owner/operator shall keep and maintain records of the initial performance test for each
crusher, screen, and conveyor for the life of the equipment. [40 CFR 60 Subpart OOO, R307-401-8]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents:
Supersedes AO DAQE-AN100210008-24 dated July 9, 2024 Is Derived From NOI dated November 22, 2024
DAQE-AN100210011-25
Page 12

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-
RN100210011 February 11, 2025 Grant Ensign Geneva Rock Products, Inc. 1565 West 400 North Orem, UT 84057 [e-mail] Dear Grant Ensign, Re: Engineer Review: Administrative Amendment to Approval Order DAQE-AN100210008-24 Under R307-401-12 Reduction in Air Pollutants Project Number: N100210011 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. Geneva Rock Products, Inc. should complete this review within 10 business days of receipt. Geneva Rock Products, Inc. should contact Katie Andersen at [phone] if there are questions or concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email Katie Andersen 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 Geneva Rock Products, Inc. does not respond to this letter within 10 business days, the project will move forward without source concurrence. If Geneva Rock Products, Inc. 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 N100210011: Geneva Rock Products- Perry Sand & Gravel Pit February 11, 2025 Page 1
UTAH DIVISION OF AIR QUALITY ENGINEER REVIEW
SOURCE INFORMATION Project Number N100210011 Owner Name Geneva Rock Products, Inc. Mailing Address 1565 West 400 North Orem, UT, 84057 Source Name Geneva Rock Products- Perry Sand & Gravel Pit Source Location 600 West 3000 South Perry, UT 84320 UTM Projection 413,777 m Easting, 4,589,876 m Northing UTM Datum NAD83 UTM Zone UTM Zone 12 SIC Code 1442 (Construction Sand & Gravel) Source Contact Grant Ensign Phone Number [phone] Email [e-mail] Billing Contact Grant Ensign Phone Number [phone] Email [e-mail] Project Engineer Katie Andersen, Engineer Phone Number [phone] Email [e-mail] Notice of Intent (NOI) Submitted November 22, 2024 Date of Accepted Application December 3, 2024

Engineer Review N100210011: Geneva Rock Products- Perry Sand & Gravel Pit February 11, 2025 Page 2
SOURCE DESCRIPTION General Description Geneva Rock Products, Inc. operates a concrete batch plant, aggregate mining, and processing facility called Perry Sand and Gravel pit in Perry, Box Elder County. The facility consists of the concrete batch plant, various storage silos, various baghouses, two (2) crushers, one (1) sizing screen, one (1) wash screen, one (1) sand screw, various conveyors and stackers, two (2) diesel storage tanks, and one (1) 560-horsepower generator. NSR Classification: Administrative Amendment Source Classification Located in the Salt Lake City UT PM2.5 NAA Box Elder 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-AN100210008-24 Under R307-401-12 Reduction in Air Pollutants Project Description Geneva Rocks Products has requested the following changes to Approval Order DAQE-AN100210008-24: 1. Update Condition II.B.4.a to reduce the hours of operation of the existing 560-horsepower diesel generator (Equipment ID# II.A.6) from 3,600 hours per rolling 12-month period to 3,215 hours per rolling 12-month period. 2. Add one (1) new jaw crusher with a 500 tons per hour capacity. Emissions for this source were recalculated using the current AP-42 emission factors because the last emission update was before 2005. The updated emissions were calculated based on the current operation and result in a paper increase of PM10 emissions. Applying the above changes results in an actual decrease in all pollutant emissions. These changes result in the following decreases: 3.34 tpy of NOx, 0.72 tpy of CO, 0.04 tpy of PM10, 0.20 tpy of PM2.5, and 0.27 tpy of VOCs. No emissions are increasing. This project meets the requirements of UAC R307-401-12 Reduction in Air Pollutants and does not require a public comment period.

Engineer Review N100210011: Geneva Rock Products- Perry Sand & Gravel Pit February 11, 2025 Page 3
EMISSION IMPACT ANALYSIS This is an Administrative Amendment under R307-401-12 Reduction in Air Pollutants. Modeling is not required at this time. [Last updated December 3, 2024]

Engineer Review N100210011: Geneva Rock Products- Perry Sand & Gravel Pit February 11, 2025 Page 4
SUMMARY OF EMISSIONS The emissions listed below are an estimate of the total potential emissions from the source. Some rounding of emissions is possible. Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent -123.77 1035.23
Carbon Monoxide -1.60 6.01 Nitrogen Oxides -1.92 27.91 Particulate Matter - PM10 2.49 12.66 Particulate Matter - PM2.5 -6.82 3.35
Sulfur Dioxide -2.28 0.01 Volatile Organic Compounds -0.27 2.26 Hazardous Air Pollutant Change (lbs/yr) Total (lbs/yr)
Generic HAPs (CAS #GHAPS) -520 40
Change (TPY) Total (TPY) Total HAPs -0.26 0.02 Note: Change in emissions indicates the difference between previous AO and proposed modification.
Commented [KA1]: Manually Enter

Engineer Review N100210011: Geneva Rock Products- Perry Sand & Gravel Pit February 11, 2025 Page 5
Review of BACT for New/Modified Emission Units 1. BACT review regarding Source-Wide This project results in an actual emission reduction of PM10, PM2.5, NOx, CO, and VOC. Thus, this project qualifies as a Reduction in Air Pollutants under R307-401-12, which does not require a source to conduct a BACT analysis. The source has supplied a BACT analysis for the new primary crusher that will be added on site. The addition of a new jaw crusher to the aggregate processing line is expected to emit 0.20 tpy of PM10 and 0.04 tpy of PM2.5. The decrease in generator hours results in a decrease of 0.24 tpy of PM10 and 0.24 tpy of PM2.5. Both changes together result in a total emission decrease of 0.04 tpy of PM10 and 0.20 tpy of PM2.5. To reduce emissions from the new jaw crusher, the following BACT analysis has been conducted. Common technologies to control emissions from crushing materials include water application, enclosures, and add-on control devices such as baghouses, wet scrubbers, cyclones, and electrostatic precipitators. All of these technologies are technically feasible. Because of the low emissions expected from the crusher, add-on control devices and enclosures are not economically feasible. Wet suppression using water spray nozzles or fog bars are effective in minimizing emissions. The DAQ considers water application as BACT for controlling emissions from the crusher. The Perry Sand and Gravel Pit is located in a PM2.5 nonattainment area and is subject to R307-312, Aggregate Processing Operations for PM2.5 Nonattainment Areas. NSPS Subpart OOO also requires visible emissions to not exceed 12% opacity for crushers manufactured on or after April 22, 2008. DAQ considers the following as BACT in addition to water application: limiting visible emissions from any crusher on site to 12% opacity. [Last updated December 6, 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]

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I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the two-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of two (2) years. [R307-401-8]
I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators shall, to the extent practicable, maintain and operate any equipment approved under this AO, including associated air pollution control equipment, in a manner consistent with good air pollution control practice for minimizing emissions. Determination of whether acceptable operating and maintenance procedures are being used will be based on information available to the Director which may include, but is not limited to, monitoring results, opacity observations, review of operating and maintenance procedures, and inspection of the source. All maintenance performed on equipment authorized by this AO shall be recorded. [R307-401-4] I.7 The owner/operator shall comply with UAC R307-150 Series. Emission Inventories. [R307-150] I.6 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107] I.8 The owner/operator shall submit documentation of the status of construction or modification to the Director within 18 months from the date of this AO. This AO may become invalid if construction is not commenced within 18 months from the date of this AO or if construction is discontinued for 18 months or more. To ensure proper credit when notifying the Director, send the documentation to the Director, attn.: NSR Section. [R307-401-18]
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 Perry Sand & Gravel Pit
II.A.2 One (1) Concrete Batch Plant Capacity: 250 cubic yards per hour II.A.3 One (1) Cement Storage Silo Control Device: Bin Vent II.A.4 One (1) Fly Ash Storage Silo Control Device: Bin Vent

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II.A.5 One (1) Truck Loading Baghouse Location: Concrete Truck Loading Station II.A.6 One (1) 560-Horsepower Diesel Generator II.A.7 One (1) Cone Crusher Capacity: 150 tons per hour II.A.8 NEW One (1) Jaw Crusher (NEW) Capacity: 500 tons per hour II.A.9 One (1) Sizing Screen Capacity: 300 tons per hour II.A.10 One (1) Wash Screen II.A.11 One (1) Sand Screw II.A.12 Associated Conveyors and Stackers II.A.13 One (1) Diesel Storage Tank Capacity: 8,000 gallons
II.A.14 One (1) Diesel Storage Tank Capacity: 12,000 gallons

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 The Perry Sand & Gravel Pit shall be subject to the following: II.B.1.a Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions from any source on site to exceed 20% opacity. [R307-401-8] II.B.1.a.1 Unless otherwise specified in this AO, opacity observations of emissions from stationary sources shall be conducted according to 40 CFR 60, Appendix A, Method 9. [R307-401-8]
II.B.1.b The owner/operator shall not produce more than the following: A. 750,000 tons of aggregate processed through the crushing/screening plant per
rolling 12-month period B. 200,000 tons of aggregate harvested from the bank run (in addition to item A
above) & directly transported off-site per rolling 12-month period. [R307-401-8]

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II.B.1.b.1 The owner/operator shall: A. Determine production by weighing products as they exit/enter the site B. Record the weight of each truck as it enters the site and the weight of the truck as it
leaves the site C. Record production on a daily basis
D. Use the production data to calculate a new rolling 12-month total by the 20th data of
each month using data from the previous 12 months E. Keep production records for all periods the plant is in operation. [R307-401-8] II.B.1.c The owner/operator shall not operate the aggregate crushing/screening operations for more than 3,600 hours per rolling 12-month period. [R307-401-8]
II.B.1.c.1 The owner/operator shall: A. Determine hours of operation by supervisor monitoring and maintaining of an
operations log B. Use the hours of operation to calculate a new rolling 12-month total by the 20th day
of each month using data from the previous 12 months. [R307-401-8] II.B.2 The Concrete Batch Plant and Associated Equipment shall be subject to the following: II.B.2.a The owner/operator shall not allow visible emissions from the concrete batch plant to exceed 7% opacity. [R307-312-4] II.B.2.b The owner/operator shall not produce more than 100,000 cubic yards of concrete per rolling 12-month period. [R307-401-8] II.B.2.b.1 The owner/operator shall: A. Determine production by weighing products as they exit/enter the site
B. Record the weight of each truck as it enters the site and the weight of each truck as it
leaves the site C. Record production on a daily basis D. Use the production data to calculate a new rolling 12-month total by the 20th day of each month using data from the previous 12 months
E. Keep production records of all periods the plant is in operation. [R307-401-8] II.B.2.c The owner/operator shall not operate the concrete batch plant for more than 2,000 hours per rolling 12-month period. [R307-401-8]

Engineer Review N100210011: Geneva Rock Products- Perry Sand & Gravel Pit February 11, 2025 Page 9
II.B.2.c.1 The owner/operator shall: A. Determine hours of operation by supervisor monitoring and maintaining of an
operations log B. Use the hours of operation to calculate a new rolling 12-month total by the 20th day of each month using data from the previous 12 months. [R307-401-8]
II.B.2.d The owner/operator shall control particulate emissions from the cement storage silo and the fly ash storage silo with two (2) bin vents that utilize fabric filter media. [R307-401-8] II.B.2.e The owner/operator shall use a loading shroud at the truck loading station to further prevent particulate emissions from this area. [R307-401-8] II.B.3 NEW The Baghouse shall be subject to the following:
II.B.3.a The owner/operator shall control particulate emissions from the concrete truck loading station with a baghouse. [R307-401-8] II.B.3.b The owner/operator shall install a manometer or magnehelic pressure gauge to measure the static pressure drop across the baghouse. [R307-401-8] II.B.3.b.1 The pressure gauge shall be located such that an inspector/operator can safely read the indicator at any time. [R307-401-8] II.B.3.b.2 The pressure gauge shall measure the pressure drop in 1-inch water column increments or less. [R307-401-8]
II.B.3.c During operation of the baghouse, the owner/operator shall maintain the static pressure drop across the baghouse between two (2) and six (6) inches of water column. [R307-401-8]
II.B.3.c.1 The owner/operator shall record the pressure drop at least once per operating day while the baghouse is operating. [R307-401-8]
II.B.3.c.2 NEW The owner/operator shall maintain the following records of the pressure drop readings:
A. Unit identification; B. Date of reading; C. Daily static pressure drop readings. [R307-401-8] II.B.3.d At least once every 12 months, the owner/operator shall calibrate the pressure gauge against a primary standard. [R307-401-8]
II.B.3.e The owner/operator shall not allow visible emissions from the baghouse to exceed 7% opacity. [R307-312-4]
II.B.4 The Diesel Generator shall be subject to the following:

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II.B.4.a NEW The owner/operator shall not operate the 560-Horsepower Diesel Generator for more than 3,215 hours per rolling 12-month period. [R307-401-8] II.B.4.a.1 NEW The owner/operator shall: A. Determine the hours of operation by supervisor monitoring and maintaining of 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. Record hours of operation on a daily basis D. Keep hours of operation records for all periods the plant is in operation. [R307-401-8] II.B.4.b The owner/operator shall only combust diesel fuel that meets the definition of ultra-low sulfur diesel (ULSD), which has a sulfur content of 15 ppm or less. [40 CFR 63 Subpart ZZZZ, R307-401-8]
II.B.4.b.1 The sulfur content of any fuel oil or diesel fuel shall be determined by ASTM Methods D4294-89 or approved equivalent. Certification of fuels shall be either by the owner/operator's own testing or by test reports from the fuel oil or diesel fuel marketer. Records of fuel supplier's test report on sulfur content shall be available on-site for each load delivered. [R307-203] II.B.5 All Haul Roads and Fugitive Dust Sources shall be subject to the following: II.B.5.a The owner/operator shall comply with a fugitive dust control plan (FDCP) acceptable to the Director for control of all dust sources on site. This plan shall contain sufficient controls to prevent an increase in PM10 emissions above those modeled for this AO. The limitations and conditions in the fugitive dust control plan shall not be changed without prior approval in accordance with R307-401. [R307-309-6]
II.B.5.b The owner/operator shall not allow visible emissions from haul roads and fugitive dust sources to exceed 20% opacity on site and 10% opacity at the property boundary. [R307-309-5] II.B.5.b.1 Visible emission determinations for fugitive dust emissions from haul-road traffic and mobile equipment in operational areas shall use procedures similar to Method 9; however, the requirement for observations to be made at 15-second intervals over a six-minute period shall not apply. Visible emissions shall be measured at a point not less than 1/2 vehicle length behind the vehicle and not less than 1/2 the height of the vehicle. [R307-309-5, R307-401-8] II.B.5.c The owner/operator shall use water application and/or chemical treatment on all unpaved haul roads and other unpaved operational areas that are used by mobile equipment to maintain opacity limits listed in this AO. If the temperature is below freezing, the owner/operator may stop applying water and/or chemical treatment to the unpaved haul roads and other unpaved operational areas that are used by mobile equipment. The owner/operator shall resume applying water and/or chemical treatment to the unpaved haul roads and other unpaved operational areas that are used by mobile equipment when the temperature is above freezing. If chemical treatment is to be used, the plan must be approved by the Director. [R307-401-8]

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II.B.5.c.1 NEW The owner/operator shall keep records of treatment for all periods when the plant is in operation. The records shall include the following items: A. Date and time treatments were made B. Number of treatments made, chemical dilution ratio used, and quantity of water applied
C. Rainfall amount received, if any, and approximate amount D. Temperature, if the temperature is below freezing. [R307-401-8] II.B.5.d The owner/operator shall not exceed a total haul road (paved and unpaved) length of 0.6 miles. [R307-401-8] II.B.5.d.1 The owner/operator shall: A. Determine the total haul road (paved and unpaved) length through GPS measurements or aerial photos
B. Record the total haul road (paved and unpaved) length once every 12 months C. Keep records of the total haul road (paved and unpaved) length for all periods the
plant is in operation. [R307-401-8] II.B.5.e NEW The owner/operator shall not exceed a haul road speed limit of 25 miles per hour. The haul road speed shall be posted, at a minimum, on site at the beginning of the haul road so that it is clearly visible from the haul road. [R307-401-8]
II.B.5.f The access haul road(s) to State Highway 89 & effected areas of State Highway 89 that are paved shall be periodically swept or sprayed clean as dry conditions warrant or as determined necessary by the Director. [R307-309] II.B.5.f.1 The owner/operator shall keep records of cleaning paved roads. [R307-401] II.B.5.g The owner/operator shall use water application for all storage piles to minimize fugitive dust, as dry conditions warrant or as determined necessary by the Director. [R307-401-8] II.B.5.g.1 The owner/operator shall keep records of water and/or chemical treatment. [R307-401-8] II.B.5.h. The owner/operator shall control all disturbed or stripped areas on site at all times for the duration of the project/operation. [R307-309] II.B.6 All Crushers, Screens, and Conveyors shall be subject to the following:

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II.B.6.a NEW The owner/operator shall not allow visible emissions from the following emission points to exceed the following values: A. All crushers - 12% opacity B. All screens - 7% opacity C. All conveyor transfer points - 7% opacity
D. All conveyor drop points - 20% opacity. [R307-312-4, R307-401-8] II.B.6.b The owner/operator shall install water sprays on all crushers, screens, and conveyor transfer points on site to control fugitive emissions. Sprays shall operate whenever dry conditions warrant or as determined necessary by the Director. [R307-401-8] II.B.6.c The owner/operator shall conduct an initial performance test for each crusher, screen, and conveyor transfer point on site. Performance tests shall demonstrate compliance with the limitations specified in Table 3 to Subpart OOO. [40 CFR 60 Subpart OOO]
II.B.6.c.1 Initial performance tests for fugitive emissions limits shall be conducted according to 40 CFR 60.675(c). The owner or operator may use methods and procedures specified in 40 CFR 60.675(e) as alternatives to the reference methods and procedures specified in 40 CFR 60.675(c). [40 CFR 60 Subpart OOO] II.B.6.d The owner/operator shall keep and maintain records of the initial performance test for each crusher, screen, and conveyor for the life of the equipment. [40 CFR 60 Subpart OOO, R307-401-8]

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PERMIT HISTORY When issued, the approval order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN100210008-24 dated July 9, 2024 Is Derived From NOI dated November 22, 2024
REVIEWER COMMENTS 1. Comment regarding Applicability of R307-312: R307-312 applies to all crushers, screens, conveyors, hot mix asphalt plants, and concrete batch plants located within a PM2.5 nonattainment and maintenance area. The Perry Sand and Gravel pit is located in the Salt Lake PM2.5 Nonattainment area and contains crushers, screens, conveyors, and a concrete batch plant. Thus, the Perry Sand and Gravel Pit is subject to R307-312. R307-312 places more stringent limits on opacity observations than the previously listed 40 CFR 60 Subpart OOO regulation. [Last updated December 3, 2024] 2. Comment regarding Reduction in Air Pollutants: The existing AO was issued on July 9, 2024, as a result of a 10-Year Review. The source has requested the following changes to the AO: decrease the annual diesel-fired engine generator hours from 3,600 hours to 3,215 hours and add a primary crusher. The emissions have been updated to reflect current emission factors and calculation practices. This results in an increase on paper of the PM10 emissions at the site. The changes proposed by the source will reduce the actual emissions at the site, and thus this project qualifies as a Reduction in Air Pollutants under R307-401-12. [Last updated February 11, 2025] 3. Comment regarding Federal Subpart Applicability: NSPS Subpart OOO The Perry Sand and Gravel Pit is subject to 40 CFR 60, Subpart OOO (Standards of Performance for Nonmetallic Mineral Processing Plants). The provisions of NSPS Subpart OOO are applicable to various screens, crushers, and conveyors. NSPS Subpart Kb NSPS Subpart Kb applies to each storage vessel with a capacity great than or equal to 75 m3 (19812.9 gallons) that is used to store volatile organic liquids (VOL) for which construction, reconstruction, or modification commenced after July 23, 1984. Geneva Rock Products, Inc. has two (2) diesel storage tanks on site with capacities of 8,000 gallons and 12,000 gallons. Neither of these tanks are greater than or equal to the 75 m3 (19812.9 gallons) threshold. Therefore, NSPS Subpart Kb does not apply to the storage tanks on site. NSPS Subpart IIII NSPS Subpart IIII applies to owners and operators of stationary compression ignition internal combustion engines that commence construction, modification, or reconstruction after July 11, 2005. The permitted diesel engine was installed on site in 2004 and would not be subject to the subpart. However, the permitted diesel engine has been removed from the site. The source would like to keep the diesel engine in the equipment list in case they need to bring the diesel engine back to the site for future production. A future diesel engine may be subject to Subpart IIII. To be conservative, the source shall be subject to Subpart IIII.

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MACT Subpart ZZZZ The Perry Sand and Gravel Pit has one (1) 560-Horsepower Diesel Generator on site and is therefore subject to 40 CFR 63, Subpart ZZZZ (National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines) which applies to any source who owns or operates a stationary reciprocating internal combustion engine (RICE) at a major or area source of HAP emissions. [Last updated February 11, 2025] 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 nor is it a Title IV source. The facility is not subject to 40 CFR 61 (NESHAP) regulations. The source is subject to 40 CFR 60 (NSPS) Subpart A, OOO, and IIII. The source is subject to 40 CFR 63 (MACT) Subpart A and ZZZZ. NSPS Subpart OOO does not specifically exempt the facility from the obligation to obtain a Title V permit; therefore, Title V applies to this facility as an area source.
There are no requirements for this source to apply for an initial Title V operating permit under current UDAQ and EPA rules. The source will be charged applicable Title V fees and Title V funds may be used for inventory and compliance inspections of this source. [Last updated December 3, 2024]

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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
200,000
Pollutant TPY PM10 3.04
NOx 27.91 29.83 -1.92 PM2.5 0.36
CO 6.01 7.61 -1.60
PM10 12.66 10.17 2.49 292,000
PM2.5 3.35 10.17 -6.82 PM10 4.44VOC2.26 2.53 -0.27 PM2.5 0.52SO20.01 2.29 -2.28HAP0.02 0.28 -0.26 ChangeCO2e1035.23 1159 -123.77 PM10 1.4
PM2.5 0.16
-8.16
Generator Generator lb/hr
Pollutant 3600 hr 3215 hr Difference Pollutant 3600 hr 3215 hr DifferenceNOX31.25 27.91 -3.34 NOX 17.36 17.36 0.00
CO 6.73 6.01 -0.72 CO 3.74 3.74 0.00PM102.22 1.98 -0.237 PM10 1.23 1.23 0.00PM2.5 2.22 1.98 -0.237 PM2.5 1.23 1.23 0.00
VOC 2.53 2.26 -0.27 VOC 1.41 1.41 0.00SO20.01 0.01 0.00 SO2 0.01 0.01 0.00
HAP 0.03 0.02 0.00 HAP 0.02 0.02 0.00
New Crusher New Crusher
Pollutant Without With Difference Pollutant Without With DifferencePM101.10 1.31 0.203 PM10 0.85 1.00 0.16PM2.5 0.17 0.21 0.038 PM2.5 0.13 0.16 0.03
Pollutant Total Changes in Emissions Pollutant Total Changes in EmissionsNOX-3.34 NOX 0.00
CO -0.72 CO 0.00PM10-0.035 PM10 0.16 lb/hrPM2.5 -0.200 PM2.5 0.03 lb/hr
VOC -0.27 VOC 0.00
SO2 0.00 SO2 0.00
HAP 0.00 HAP 0.00
Equipment Details
Rating 560 hp = (418 kw)
Operational Hours 3,215 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 17.36 27.91
CO 6.68E-03 3.74 6.01
PM10 2.20E-03 1.23 1.98PM2.5 2.20E-03 1.23 1.98
VOC 2.51E-03 1.41 2.26SO21.21E-05 0.01 0.01 AP-42 Table 3.4-1HAP0.02 0.02 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission Factor
(lb/hp-hr)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferenceCO2 (mass basis)1 1.15E+00 644 1,035
Methane (mass basis)25 0 0CO2e1,035
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Benzene 9.33E-04 3.66E-03 5.88E-03
Toluene 4.09E-04 1.60E-03 2.58E-03
Xylenes 2.85E-04 1.12E-03 1.80E-031,3-Butadiene 3.91E-05 1.53E-04 2.46E-04Formaldehyde1.18E-03 4.63E-03 7.44E-03
Acetaldehyde 7.67E-04 3.01E-03 4.83E-03
Acrolein 9.25E-05 3.63E-04 5.83E-04Naphthalene8.48E-05 3.32E-04 5.34E-04Acenaphthylene5.06E-06 1.98E-05 3.19E-05Acenaphthene1.42E-06 5.57E-06 8.95E-06
Fluorene 2.92E-05 1.14E-04 1.84E-04Phenanthrene2.94E-05 1.15E-04 1.85E-04Anthracene1.87E-06 7.33E-06 1.18E-05Fluoranthene7.61E-06 2.98E-05 4.80E-05
Pyrene 4.78E-06 1.87E-05 3.01E-05
Benz(a)anthracene 1.68E-06 6.59E-06 1.06E-05Chrysene3.53E-07 1.38E-06 2.22E-06Benzo(b)fluoranthene 9.91E-08 3.88E-07 6.24E-07
Benzo(k)fluoranthene 1.55E-07 6.08E-07 9.77E-07
Benzo(a)pyrene 1.88E-07 7.37E-07 1.18E-06Indeno(1,2,3-cd)pyrene 3.75E-07 1.47E-06 2.36E-06Dibenz(a,h)anthracene 5.83E-07 2.29E-06 3.67E-06
Benzo(g,h,l)perylene 4.89E-07 1.92E-06 3.08E-06
AP-42 Table 3.3-1& Table 3.4-1
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
Page 3 of Version 1.1 February 21, 2019
Equipment DetailsHourly Rating 250 yd3/hour
Annual Production 100,000 yd3/year
Type Central-Mix
Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
PM10 4.26 0.85PM2.5 29.4%1.25 0.25
HAP 0.00 0.00
Process
(Controlled)
PM10
Emission
Factor
(lb/ton)
PM10 Emission
Factor
(lb/yd3)
PM10
Emission
Rate
(lbs/hr)
PM10
Emission
Total
(tons/year)Reference
Aggregate Delivery to Ground 0.0031 0.78 0.16
Sand Delivery to Ground 0.0007 0.18 0.04
Aggregate Delivery to Conveyor 0.0031 0.78 0.16
Sand Delivery to Conveyor 0.0007 0.18 0.04Aggregate Delivery to Storage 0.0031 0.78 0.16Sand Delivery to Storage 0.0007 0.18 0.04Cement Delivery to Silo 0.0001 0.03 0.01Additive Delivery to Silo 0.0002 0.05 0.01
Weigh Hopper Loading 0.0038 0.95 0.19
Central Mix Loading 0.0055 0.001551 0.39 0.08
Hazardous Air Pollutant
(Controlled)
Emission
Factor
(lb/ton)
Emission
Factor
(lb/yd3)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
Arsenic 1.30E-06 3.67E-07 9.17E-05 1.83E-05Beryllium9.09E-08 2.56E-08 6.41E-06 1.28E-06Cadmium9.08E-10 2.56E-10 6.40E-08 1.28E-08Chromium1.38E-06 3.88E-07 9.70E-05 1.94E-05Lead5.68E-07 1.60E-07 4.00E-05 8.00E-06
Manganese 4.15E-06 1.17E-06 2.93E-04 5.86E-05
Nickel 2.57E-06 7.25E-07 1.81E-04 3.62E-05
Phosphorus 4.74E-06 1.34E-06 3.34E-04 6.68E-05
Selenium 7.24E-08 2.04E-08 5.10E-06 1.02E-06
Concrete Batch Plants
Percent
PM2.5 of PM10 See Below, & AP-42
Appendix B.2.2
Category 3
AP-42 Table 11.12-2,
Table 11.12-5,
Table 11.12-6,
Equation 11.12-2
AP-42 Table 11.12-8
Page 4 of Version 1.0 November 29, 2018
Production RatesHourly Rates 288 tons/hourAnnual Production 750,000 tons/year
Truck Information
Empty Truck Weight 35 tons
Weight of Load 20 tons
Loaded Truck Weight 55 tons
Haul Road InformationHaul Road One-Way Length 400 feetHourly Vehicle Miles Traveled 2.2 miles
Annual Vehicle Miles Traveled 5,682 miles
Type of Control
Pollutant
Uncontrolled
Emission
Factor
(lb/VMT)
Controlled
Emission
Factor
(lb/VMT)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM102.22 0.11 0.24 0.32
PM2.5 0.222 0.011 0.02 0.03
Haul Roads
Paving with Vacuum Sweeping & Watering - (95% control)
AP-42 13.2.2 & DAQ
Haul Road Guidance
Page 5 of Version 1.0 November 29, 2018
Production RatesHourly Rates 288 tons/hourAnnual Production 750,000 tons/year
Truck Information
Empty Truck Weight 35 tons
Weight of Load 20 tons
Loaded Truck Weight 55 tons
Haul Road InformationHaul Road One-Way Length 1,584 feetHourly Vehicle Miles Traveled 8.6 miles
Annual Vehicle Miles Traveled 22,500 miles
Type of Control
Pollutant
Uncontrolled
Emission
Factor
(lb/VMT)
Controlled
Emission
Factor
(lb/VMT)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM102.22 0.56 4.80 6.26
PM2.5 0.222 0.056 0.48 0.63
Haul Roads
Road Base with Watering - (75% control)
AP-42 13.2.2 & DAQ
Haul Road Guidance
Page 6 of Version 1.0 November 29, 2018
Production RatesHourly Rates 288 tons/hourAnnual Production 750,000 tons/year
Loader Information
Empty Loader Weight 33 tons
Weight of Load 8 tons
Loaded Loader Weight 41 tons
Loader Route\ InformationLoader Route One-Way Length 100 feetHourly Vehicle Miles Traveled 1.4 miles
Annual Vehicle Miles Traveled 3,551 miles
Type of Control
Pollutant
Uncontrolled
Emission
Factor
(lb/VMT)
Controlled
Emission
Factor
(lb/VMT)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)ReferencePM102.04 0.51 0.69 0.90
PM2.5 0.204 0.051 0.07 0.09
Loader Routes
Road Base with Watering - (75% control)
AP-42 13.2.2 & DAQ
Haul Road Guidance
Page 7 of Version 1.0 November 29, 2018
Production RatesHourly Rates 288 tons/hourAnnual Production 200,000 tons/year
Variables
Number of Transfer Points 10
Mean Wind Speed 10 mph
Moisture Content 4 %
Pollutant
Emission
Factor
(lb/ton)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
PM10 0.00104 3.01 1.04PM2.5 0.00016 0.46 0.16
Material Handling
AP-42 13.2.4.3
Equation #1
Page 8 of Version 1.0 November 29, 2018
Production RatesHourly Rates 288 tons/hourAnnual Production 750,000 tons/year
Emission Unit
Number of
Emission
Units
PM10
Emission
Factor
(lb/ton)
PM2.5
Emission
Factor
(lb/ton)Reference
Crushers 2 0.00054 0.00010Screens20.00074 0.00005Conveyor Transfer Points 20 4.6E-05 1.3E-05
Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)PM10 1.00 1.31PM2.5 0.16 0.21
Emission Unit
PM10 Emission
Rate
(lbs/hr)
PM10 Emission
Total
(tons/year)
PM2.5 Emission
Rate
(lbs/hr)
PM2.5 Emission
Total
(tons/year)Crushers 0.31 0.41 0.06 0.08Screens0.43 0.56 0.03 0.04Conveyors0.26 0.35 0.07 0.10
Aggregate Processing Equipment
AP-42
Table 11.19.2-2
Page 9 of Version 1.0 November 29, 2018

Perry, UT

Notice of Intent – Modification to Approval Order
Net-Zero increase in emissions

November 20, 2024

Current Approval Order: DAQE-AN100210008-24

Contents
Permit Modification Explanation ..................................................................................... 3
Tables ............................................................................................................................ 4
Review of BACT for New Emission Units........................................................................... 5
Appendix: AP-42 Reference Tables .................................................................................. 6

Permit Modification Explanation
Geneva Rock Products, Inc. (Geneva Rock) operates a concrete batch plant, aggregate
mining, and processing facility called Perry Sand and Gravel Pit in Perry, Box Elder County.
The facility consists of the concrete batch plant, various storage silos, various baghouses,
one (1) crusher, one (1) sizing screen, one (1) wash screen, one (1) sand screw, various
conveyors and stackers, two (2) diesel storage tanks, and one (1) 560-horsepower
generator.
Geneva Rock is requesting modifications to the current Approval Order (AO: DAQE-
AN100210008-24) as follows:
1. Modify AO item [II.B.1.c]: Reduce the generator hours for the 560-horsepower unit
from 3,600 to 3,215 hours.
2. New AO item: Add a primary crusher, while keeping the aggregate processed
unchanged.
Table 1 shows the Potential-to-Emit (PTE) Particulate Matter (PM) emissions from the
generator currently operating at 3,600 hours. Table 2 shows the proposed PTE for PM with
the generator hours reduced to 3,215 and the addition of a jaw crusher with all associated
transfer points.
Emissions for criteria pollutants were calculated to ensure they align with or are reduced
compared to current levels, as shown in Table 3, confirming a “net-zero increase in
emissions” for this AO modification. A supplemental Excel spreadsheet is included with
this submittal to provide detailed documentation of the adjusted calculations.
Please contact me if you have any questions. Thank you!

Grant Ensign

Environmental Specialist
[e-mail]
801-802-6954
Tables

lb/hp-hrs*lbs/yr tons/yr lb/hp-hrs+lbs/yr tons/yr
Generator 560 3,600 0.0022 4,435 2.22 0.0022 4,435 2.22
Total 2.22 2.22
*AP-42 Table 3.3-1
+Assume Emission Factor for PM10 = PM2.5
PM10Emission Point hp hours
Table 1: Current AO - PTE (PM10 & PM2.5)
PM2.5
lb/hp-hrs*lbs/yr tons/yr lb/hp-hrs+lbs/yr tons/yr
Generator 560 3,215 0.0022 3,961 1.98 0.0022 3,961 1.98
aggregate tons hours lb/ton**lbs/yr tons/yr lb/ton**lbs/yr tons/yr
Loader to Crusher transfer 750,000 N/A 0.000046 34.5 0.02 0.000013 9.75 0.00
Jaw Crusher 750,000 N/A 0.00054 405 0.20 0.00010 75 0.04
Crusher to belt transfer 750,000 N/A 0.000046 34.5 0.02 0.000013 9.75 0.00
Total 2.22 2.03
*AP-42 Table 3.3-1
**AP-42 Table 11.19.2-2
+Assume Emission Factor for PM10 = PM2.5
Table 2: Proposed AO - PTE (PM 10 & PM 2.5)
PM10 PM2.5Emission Point hp hours
Review of BACT for New Emission Units

1. BACT review regarding Aggregate Processing
Five control technologies were identified for particulate control from aggregate processing
operations. These are: (1) total equipment enclosure; (2) Electrostatic Precipitator (ESP);
(3) Wet Scrubbers; (4) Baghouses (Fabric Filters), and (5) Wet Suppression. Cyclones were
not considered. a control technology for material handling since a cyclone does not
remove fine particulate matter. Total enclosure of the equipment provides the highest
percentage of control at 100%; ESPs and baghouses typically reduce PM10 and PM2.5
emissions by up to 99.9%. Wet scrubbers offer approximately 95% control and wet
suppression offers approximately 75% control.

Because the emissions from crushing, screening, conveying, and transfer points are
fugitive in nature, wet scrubbers, ESPs, and baghouses are eliminated from the BACT
analysis. ESPs and wet scrubbers were eliminated from review since these emission
control technologies are either infeasible in a temperature variable outdoor environment,
due to cost, or because they are not considered effective for fugitive control for aggregate
operations. Although the emissions from the crushers could be captured and vented to a
baghouse (fabric filters), this option was determined to be economically infeasible due to
the cost of the ducting and capture system. Wet suppression using water sprays nozzles
or fog bars are effective in minimizing emissions from crushing, screening, conveying, and
transfer points. The most common control technology used to control fugitive PM10 and
PM2.5 is the application of water to maintain moisture throughout the material handling
process and to meet the required State of Utah opacity limits. Wet suppression will be
employed on the crushers, screens, and conveyor transfer points.

Spray systems at transfer points have been estimated to reduce PM emissions by 70 to
95%. Factors affecting emissions from screening include the stone size distribution and the
surface moisture content of the stone processed as well as the process throughput rate.
The Perry facility will apply water as necessary to maintain relatively high material moisture
content to effectively control PM emissions from material crushing, screening, conveying,
and transfer points. The material at the wash plant will be saturated with water. Therefore,
the application of water for material handling operations is considered to meet BACT.

Appendix: AP-42 Reference Tables

lb/hp-hrs*
Generator 560 3,600 0.0022
Total
*AP-42 Table 3.3-1
+Assume Emission Factor for PM10 = PM2.5
lb/hp-hrs*
Generator 560 3,215 0.0022
aggregate tons hours lb/ton**
Loader to Crusher transfer 750,000 N/A 0.000046
Jaw Crusher 750,000 N/A 0.00054
Crusher to belt transfer 750,000 N/A 0.000046
Total
*AP-42 Table 3.3-1
**AP-42 Table 11.19.2-2
+Assume Emission Factor for PM10 = PM2.5
Emission Point PM10*PM2.5*NOx**
Current AO PTE 10.17 10.17 29.83
Reduction in PTE 0.00 0.19 3.34
New AO Total 10.17 9.98 26.49
*AP-42 Table 3.3-1
**AP-42 Table 11.19.2-2
Table 1: Current AO - PTE (PM10
Emission Point hp hours
Table 3: Changes to AO PTE (Tons - PM 10 , PM 2.5 , NOx, SO2
Emission Point hp hours
Table 2: Proposed AO - PTE (PM
lbs/yr tons/yr lb/hp-hrs+lbs/yr tons/yr
4,435 2.22 0.0022 4,435 2.22
2.22 2.22
lbs/yr tons/yr lb/hp-hrs+lbs/yr tons/yr
3,961 1.98 0.0022 3,961 1.98
lbs/yr tons/yr lb/ton**lbs/yr tons/yr
34.5 0.02 0.000013 9.75 0.00
405 0.20 0.00010 75 0.04
34.5 0.02 0.000013 9.75 0.00
2.22 2.03
SO2**CO**
2.29 7.61
0.22 0.72
2.07 6.89
0 & PM2.5)
PM10 PM2.5
PM2.5
2, CO)
PM10
M 10 & PM 2.5 )
Portable Plants
CRJ3042
Jaw Plant
A world working better™
The Cedarapids® CRJ3042 plant combines the
popular JW42 jaw crusher with a high stroke, 42” x 20’
(1067 x 6096 mm) vibrating grizzly feeder resulting
in a high production portable crushing machine. This
plant includes a hopper design that can handle severe
primary crushing applications. The highly mobile
CRJ3042 is easy to operate and maintain and offers
new levels of reliability and convenience. The jaw
crusher has features such as wedge release jaw faces
and fully hydraulic wedge jaw crusher setting. Multiple
options are available, allowing customers to configure
the CRJ3042 to meet specific needs.

Cedarapids®
Portable Plants
CRJ3042
Jaw Plant
Standard Features
JW42 Jaw Crusher
• Hydraulic wedge jaw adjustment
• Hydraulic tension rod
• Electric/hydraulic adjust unit
• Quick change jaw die wedge system with side
access to stationary die
• High strength frame with bolted and dowelled
construction
• Three-piece side cheek plates
4220-15 Vibrating Grizzly Feeder
• Hopper with 3/4” (19 mm) AR 400 sides
• Adjustable action vibrator unit with pivot base
motor mounting
• Heavy coil springs with removable spring brackets
• 60” (1524 mm) bolted bar grizzly, 4” (102 mm)
nominal openings
• Bypass chute diverts grizzly fines to undercrusher
conveyor
• Rubber side curtains
Removable CCM™ automatic
switchgear panel
with hydraulic lift
AR400 Bypass chute to
divert material passing
grizzly to undercrusher
delivery conveyor
Hydraulic wedge jaw adjustment
for tool-less jaw CSS adjustment
Isolation jaw mount pads to minimize
vibration and shock transmittance
into main frame structure
Removable hopper module with
3/4” AR 400 sides
(shown with staked side extensions)
42” undercrusher conveyor with
impact bed and 3 ply vulcanized belt
Optional Run-On or
Leveling Jacks
Undercrusher Conveyor
• Straight-line conveyor design
• Shaft mount gear box and TEFC motor
• Impact bars under jaw and grizzly bypass
• 3-ply conveyor belt with vulcanized splice
• Continuous supported hopper flashing on diverging
hopper minimizes spillage and clean up
Main Frame with Triple Axle
• Straight beam chassis with kingpin, under-frame
mounted axles, spring suspension, air brakes, travel
lights and splash guards
• Jaw mount vibration isolation pads
• Emergency stops on both sides of chassis
• Twelve 295/75 R22.5 tires
• Adjustable kingpin support legs
• Service and observation platforms
• Remote grease lines
• Lockable side-mounted storage box
Estimated Weights*Axles Kingpin Total
Standard wheel base
plant
58,235 lbs
(26,415 kg)
43,535 lbs
(19,750 kg)
101,770 lbs
(46,165 kg)
*Weights include optional switchgear, jacks and hydraulics.
Contact factory for weights of other optional equipment.
*Heights shown on 18” (457 mm) leveling jacks, 24” (610 mm) run-on jacks are also available.
Transport
Operational
Power Requirements hp kW
Jaw 150 110
Jaw hydraulic controls 3 2
Feeder 40 30
Undercrusher conveyor 15 11
Cross conveyor (optional)5 3.7
Self-cleaning magnet (optional)1.5 1
Dust suppression pump (optional)0.75 0.5
Specifications Dimensions Operating
Speed
Jaw crusher 30” x 42”760 mm x
1067 mm 250 rpm
Undercrusher conveyor 42”1067 mm 300 rpm
Cross conveyor (optional)24”610 mm
Feeder 42” x 20’1067 mm x
6096 mm
variable
600 - 800
rpm
Bolted bar grizzly 60” x 4”1524 mm x
102 mm
AR pan liners 1/2”12.7 mm
North America
3900 Fountains Blvd NE, Suite 101
Cedar Rapids, IA 52411
Tel: [phone] or [phone]
Fax: [phone]
212 South Oak Street
Durand, MI 48429
Tel: [phone]
Fax: [phone]
www.terexmps.com
[e-mail]
Product specifications and prices are subject to change without notice or obligation. The photographs and/or drawings in this document are for illustrative purposes only. Refer to the appropriate Operator’s Manual for instructions on the proper use of this equipment.
Failure to follow the appropriate Operator’s Manual when using our equipment or failure to act responsibly may result in serious injury or death.
The only warranty applicable to our equipment is the standard written warranty applicable to the particular product and sale, and Terex makes no other warranty, express or implied. Terex, the
Terex Crown design, Cedarapids, Canica, Simplicity, Jaques, El-Jay and Rollercone are trademarks of Terex Corporation or its subsidiaries. All rights are reserved. © June 2020
Optional equipment
• Removable electrical switchgear panel, wiring and
operator
• push-button station
• Hydraulic lift system for switchgear panel
• Tethered or wireless remote feeder control
• Staked 20” (508 mm) hopper wing extensions
• Grizzly reject cross conveyor
• Various grizzly bar spacing
• Bolt-in stepped tine grizzly in place of standard
bars
• Dust suppression water spray system
• Cross belt self-cleaning magnet
• Hydraulic leveling or run-on jacks (gas, 12V, or 24V
in hinged enclosure)
• Crank style landing jacks
• Oversize 315/80 R22.5 tires
Shown as a multi plant system with the CRC380XHLS