DAQ-2024-012122

DAQE-AN103860002-24

{{$d1 }}

Grant Ensign
Geneva Rock Products, Inc.
730 North 1500 West
Orem, UT 84057
[e-mail]

Dear Mr. Ensign:

Re: Approval Order: Administrative Amendment to Approval Order DAQE-AN0103860001-09 for a
10-Year Review and Permit Updates
Project Number: N103860002

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. 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 Dylan Frederick, 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:DF:jg

cc: Salt Lake County Health Department

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

SPENCER J. COX
Governor
DEIDRE HENDERSON
Lieutenant Governor

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

December 10, 2024

STATE OF UTAH
Department of Environmental Quality
Division of Air Quality

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

APPROVAL ORDER
DAQE-AN103860002-24
Administrative Amendment to Approval Order
DAQE-AN0103860001-09 for a 10-Year Review
and Permit Updates

Prepared By
Dylan Frederick, Engineer
[phone]
[e-mail]

Issued to
Geneva Rock Products, Inc. - Murray Concrete Batch Plant

Issued On
{{$d2 }}

Issued By

{{$s }}

Bryce C. Bird
Director
Division of Air Quality

December 10, 2024
TABLE OF CONTENTS

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

DAQE-AN103860002-24
Page 3

GENERAL INFORMATION

CONTACT/LOCATION INFORMATION

Owner Name Source Name
Geneva Rock Products, Inc. Geneva Rock Products, Inc. - Murray Concrete Batch Plant

Mailing Address Physical Address
730 North 1500 West 350 West 3900 South
Orem, UT 84057 Murray, UT 84107

Source Contact UTM Coordinates
Name: Grant Ensign 423,800 m Easting
Phone: [phone],504,500 m Northing
Email: [e-mail] Datum NAD83
UTM Zone 12
SIC code 3273 (Ready-Mixed Concrete)

SOURCE INFORMATION
General Description
Geneva Rock Products, Inc. (GRP) operates a concrete batch plant in Murray, Salt Lake County. The
facility produces up to 350,000 tons cubic yards of concrete annually. Baghouses are used to control
emissions from the concrete batch plant and storage silos.

NSR Classification
10-Year Review

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

Applicable Federal Standards
None
Project Description
This administrative amendment is a 10-year review to update the approval order. The permit language and
formatting have been updated, as well as the contact information. A 4.9 MMBtu/hr water heater was
added to the equipment list. This equipment is exempt from permitting requirements per R307-401-10 as
it is natural gas burning equipment that is less than 5 MMBtu/hr. Emission estimates for this equipment
were added into the summary of emissions.
DAQE-AN103860002-24
Page 4

SUMMARY OF EMISSIONS

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

Criteria Pollutant Change (TPY) Total (TPY)
CO2 Equivalent 2525 2525.00
Carbon Monoxide 1.77 4.27
Nitrogen Oxides 2.10 10.40
Particulate Matter - PM10 0.16 6.66
Particulate Matter - PM2.5 0.16 6.66
Sulfur Dioxide 0.01 0.81
Volatile Organic Compounds 0.12 1.52

SECTION I: GENERAL PROVISIONS

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

I.2 The limits set forth in this AO shall not be exceeded without prior approval. [R307-401]
I.3 Modifications to the equipment or processes approved by this AO that could affect the
emissions covered by this AO must be reviewed and approved. [R307-401-1]

I.4 All records referenced in this AO or in other applicable rules, which are required to be kept by the owner/operator, shall be made available to the Director or Director's representative upon request, and the records shall include the two-year period prior to the date of the request. Unless otherwise specified in this AO or in other applicable state and federal rules, records shall be kept for a minimum of two (2) years. [R307-401-8]
I.5 At all times, including periods of startup, shutdown, and malfunction, owners and operators
shall, to the extent practicable, maintain and operate any equipment approved under this AO,
including associated air pollution control equipment, in a manner consistent with good air
pollution control practice for minimizing emissions. Determination of whether acceptable
operating and maintenance procedures are being used will be based on information available to
the Director which may include, but is not limited to, monitoring results, opacity observations,
review of operating and maintenance procedures, and inspection of the source. All maintenance
performed on equipment authorized by this AO shall be recorded. [R307-401-4]

I.6 The owner/operator shall comply with R307-150 Series. Inventories, Testing and Monitoring. [R307-150]
I.7 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns. [R307-107]

DAQE-AN103860002-24
Page 5

SECTION II: PERMITTED EQUIPMENT

II.A THE APPROVED EQUIPMENT

II.A.1 Murray Concrete Batch Plant
II.A.2 One (1) Central-Mix Concrete Batch Plant

II.A.3 Four (4) Baghouses
II.A.4 Two (2) Elevated Cement Storage Silos

II.A.5 One (1) Elevated Fly Ash Storage Silo
II.A.6 One (1) Elevated Storage Bin

II.A.7 One (1) Drum Mixer
II.A.8 One (1) Drive-over Storage Hopper

II.A.9 One (1) Weigh Hopper
II.A.10 Various Fuel Storage Tanks

II.A.11 One (1) Water Heater Rating: less than 5 MMBtu/hr Fuel: Natural Gas *listed for informational purposes only

SECTION II: SPECIAL PROVISIONS II.B REQUIREMENTS AND LIMITATIONS
II.B.1 The Murray Concrete Batch Plant shall be subject to the following: II.B.1.a The owner/operator shall not produce more than 350,000 cubic yards of concrete per rolling 12-month period. [R307-401]
II.B.1.a.1 The owner/operator shall: A. Determine the amount of concrete produced by supervisor monitoring and maintaining an operations log. B. Record the amount of concrete produced on a daily basis. C. Use the production data to calculate a new 12-month total based on the first day of each month using data from the previous 12 months. D. Keep the operations records for all periods the plant is in operation. [R307-401-8] II.B.1.b The owner/operator shall install a manometer or magnehelic pressure gauge to measure the static pressure differential across each baghouse. [R307-401-8]
DAQE-AN103860002-24
Page 6

II.B.1.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.1.b.2 The pressure gauge shall measure the static pressure differential in 1-inch water column increments or less. [R307-401-8]

II.B.1.b.3 The pressure gauge shall be calibrated against a primary standard annually. The primary standard shall be established by the company and shall be submitted to the Director for approval. [R307-401-8] II.B.1.c During operation of the baghouse, the owner/operator shall maintain the static pressure differential across the baghouse between 2 and 6 inches of water column. [R307-401-8]

II.B.1.d The owner/operator shall record the reading of the pressure gauge at least once per operating day. [R307-401-8]
II.B.1.e Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions to exceed the following limits:

A. Baghouses - 7% opacity.
B. All other points - 20% opacity.
[R307-312-4, R307-401-8]

II.B.1.e.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. [R307-305]
II.B.2 All Haul Roads & Fugitive Dust Sources shall be subject to the following:
II.B.2.a The owner/operator shall not allow visible emissions from haul roads and fugitive dust sources to exceed 20% opacity on site and 10% at the property boundary. [R307-309-5]
II.B.2.a.1 The owner/operator shall conduct visible emission determinations for fugitive dust emissions
from haul-road traffic and mobile equipment in operational areas using procedures similar to Method 9. The normal requirement for observations to be made at 15-second intervals over a
six-minute period, however, shall not apply. Visible emissions shall be measured at the densest
point of the plume but at a point not less than 1/2 vehicle length behind the vehicle and not less than 1/2 the height of the vehicle. [R307-309-5]

II.B.2.b The owner/operator shall not exceed a haul road speed limit of 15 miles per hour. The haul road speed shall be posted on site. [R307-401-8]
II.B.2.c The owner/operator shall not exceed 0.5 miles in length for the haul road. [R307-401-8]

II.B.2.d The haul road shall be paved and shall be periodically swept or sprayed clean as dry conditions warrant or as determined necessary by the Director. [R307-401-8]
II.B.2.d.1 The owner/operator shall keep records of cleaning the paved roads. [R307-401-8]

II.B.2.e The owner/operator shall water spray and/or chemically treat all unpaved roads and other unpaved operational areas that are used by mobile equipment to control fugitive dust. Treatment shall be of sufficient frequency and quantity to maintain the surface material in a damp/moist condition unless the ambient temperature is below freezing. The opacity shall not exceed the limits listed in this AO at all times the areas are in use. If chemical treatment is to be used, the plan must be approved by the Director. [R307-401-8]
DAQE-AN103860002-24
Page 7

II.B.2.e.1 The owner/operator shall keep records of water and/or chemical treatment shall be kept for all periods when the plant is in operation. The records shall include the following items: A. Date and time of day treatments were made. B. Number of treatments made, dilution ratio (chemical treatment only), and quantity. C. Rainfall received, if any. [R307-401-8]
II.B.2.f The owner/operator shall water the storage piles to minimize generation of fugitive dust as dry conditions warrant or as determined necessary by the Director. [R307-401-8]
II.B.2.f.1 Records of water and/or chemical treatment shall be kept for all periods when the plant is in operation. [R307-401-8]

PERMIT HISTORY

This Approval Order shall supersede (if a modification) or will be based on the following documents: Supersedes AO DAQE-AN0103860001-09 dated August 5, 2009 Incorporates Additional Information dated August 29, 2024 Incorporates Additional Information dated September 9, 2024

DAQE-AN103860002-24
Page 8

ACRONYMS

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

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

DAQE-

RN103860002
October 17, 2024

Grant Ensign
Geneva Rock Products, Inc.
730 N 1500 West
Orem, UT 84057
[e-mail]

Dear Grant Ensign,

Re: Engineer Review - 10-Year Review and Permit Updates:
Administrative Amendment to Approval Order DAQE-AN0103860001-09 for a 10-Year Review
and Permit Updates
Project Number: N103860002

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 Dylan Frederick at [phone] if there are questions or
concerns with the review of the draft permit conditions. Upon resolution of your concerns, please email
Dylan Frederick 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
Jay Ritchie (Nov 15, 2024 09:46 MST)15/11/2024

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 1
UTAH DIVISION OF AIR QUALITY
ENGINEER REVIEW

SOURCE INFORMATION

Project Number N103860002
Owner Name Geneva Rock Products, Inc.
Mailing Address 730 N 1500 West
Orem, UT, 84057

Source Name Geneva Rock Products- Murray Concrete Batch Plant
Source Location 350 W 3900 S
Murray, UT 84107

UTM Projection 423,800 m Easting, 4,504,500 m Northing
UTM Datum NAD83
UTM Zone UTM Zone 12
SIC Code 3273 (Ready-Mixed Concrete)

Source Contact Grant Ensign
Phone Number [phone]
Email [e-mail]

Billing Contact Grant Ensign
Phone Number 801-802-6954
Email [e-mail]

Project Engineer Dylan Frederick, Engineer
Phone Number [phone]
Email [e-mail]

Notice of Intent (NOI) Submitted August 28, 2024
Date of Accepted Application September 7, 2024

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 2
SOURCE DESCRIPTION

General Description
Geneva Rock Products, Inc. (GRP) operates a concrete batch plant in Murray, Salt Lake County.
The facility produces up to 350,000 tons cubic yards of concrete annually. Baghouses are used to
control emissions from the concrete batch plant and storage silos.

NSR Classification:
10 Year Review

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

Applicable Federal Standards
N/A

Project Proposal
Administrative Amendment to Approval Order DAQE-AN0103860001-09 for a 10-Year Review
and Permit Updates

Project Description
This administrative amendment is a 10-year review to update the approval order. The permit
language and formatting has been updated, as well as the contact information. A 4.9 MMBtu/hr
water heater was added to the equipment list. This equipment is exempt from permitting
requirements per R307-401-10 as it is natural gas burning equipment that is less than 5
MMBtu/hr. Emission estimates for this equipment were added into the summary of emissions.

EMISSION IMPACT ANALYSIS
This is an administrative amendment for a 10-year review. No changes to equipment or emissions are being
made at this time; therefore, modeling is not required [Last updated September 7, 2024]

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 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 2525 2525.00
Carbon Monoxide 1.77 4.27
Nitrogen Oxides 2.10 10.40
Particulate Matter - PM10 0.16 6.66
Particulate Matter - PM2.5 0.16 6.66
Sulfur Dioxide 0.01 0.81
Volatile Organic Compounds 0.12 1.52

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

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 4
Review of BACT for New/Modified Emission Units

1. BACT review regarding BACT
This is a 10-year review; no new equipment is being added and emissions are unchanged.
Therefore, a BACT analysis is not required [Last updated August 29, 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 two (2) years. [R307-401-8]

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

I.6 The owner/operator shall comply with R307-150 Series. Inventories, Testing and Monitoring.
[R307-150]

I.7 The owner/operator shall comply with UAC R307-107. General Requirements: Breakdowns.
[R307-107]

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 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 Murray Concrete Batch Plant

II.A.2 One (1) Central-Mix Concrete Batch Plant

II.A.3 Four (4) Baghouses

II.A.4 Two (2) Elevated Cement Storage Silos

II.A.5 One (1) Elevated Fly Ash Storage Silo

II.A.6 One (1) Elevated Storage Bin

II.A.7 One (1) Drum Mixer

II.A.8 One (1) Drive-over Storage Hopper

II.A.9 One (1) Weigh Hopper

II.A.10 Various Fuel Storage Tanks

II.A.11
NEW
One (1) Water Heater
Rating: less than 5 MMBtu/hr
Fuel: Natural Gas
*listed for informational purposes only

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 Murray Concrete Batch Plant shall be subject to the following:
II.B.1.a
NEW
The owner/operator shall not produce more than 350,000 cubic yards of concrete per rolling
12-month period. [R307-401]

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 6
II.B.1.a.1
NEW
The owner/operator shall:

A. Determine the amount of concrete produced by supervisor monitoring and
maintaining an operations log.

B. Record the amount of concrete produced on a daily basis.

C. Use the production data to calculate a new 12-month total based on the first day of
each month using data from the previous 12 months.

D. Keep the operations records for all periods the plant is in operation. [R307-401-8]

II.B.1.b
NEW
The owner/operator shall install a manometer or magnehelic pressure gauge to measure the
static pressure differential across each baghouse. [R307-401-8]

II.B.1.b.1
NEW
The pressure gauge shall be located such that an inspector/operator can safely read the
indicator at any time. [R307-401-8]

II.B.1.b.2
NEW
The pressure gauge shall measure the static pressure differential in 1-inch water column
increments or less. [R307-401-8]

II.B.1.b.3
NEW
The pressure gauge shall be calibrated against a primary standard annually. The primary
standard shall be established by the company and shall be submitted to the Director for
approval. [R307-401-8]

II.B.1.c
NEW
During operation of the baghouse, the owner/operator shall maintain the static pressure
differential across the baghouse between 2 and 6 inches of water column. [R307-401-8]

II.B.1.d
NEW
The owner/operator shall record the reading of the pressure gauge at least once per operating
day. [R307-401-8]

II.B.1.e
NEW
Unless otherwise specified in this AO, the owner/operator shall not allow visible emissions to
exceed the following limits:

A. Baghouses - 7% opacity

B. All other points - 20% opacity. [R307-312-4, R307-401-8]

II.B.1.e.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. [R307-305]

II.B.2 All Haul Roads & Fugitive Dust Sources shall be subject to the following:
II.B.2.a
NEW
The owner/operator shall not allow visible emissions from haul roads and fugitive dust
sources to exceed 20% opacity on site and 10% at the property boundary. [R307-309-5]

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 7
II.B.2.a.1
NEW
The owner/operator shall conduct visible emission determinations for fugitive dust emissions
from haul-road traffic and mobile equipment in operational areas using procedures similar to
Method 9. The normal requirement for observations to be made at 15-second intervals over a
six-minute period, however, shall not apply. Visible emissions shall be measured at the
densest point of the plume but at a point not less than 1/2 vehicle length behind the vehicle
and not less than 1/2 the height of the vehicle. [R307-309-5]

II.B.2.b
NEW
The owner/operator shall not exceed a haul road speed limit of 15 miles per hour. The haul
road speed shall be posted on site. [R307-401-8]

II.B.2.c
NEW
The owner/operator shall not exceed 0.5 miles in length for the haul road. [R307-401-8]

II.B.2.d
NEW
The haul road shall be paved and shall be periodically swept or sprayed clean as dry
conditions warrant or as determined necessary by the Director. [R307-401-8]

II.B.2.d.1
NEW
The owner/operator shall keep records of cleaning the paved roads. [R307-401-8]

II.B.2.e
NEW
The owner/operator shall water spray and/or chemically treat all unpaved roads and other
unpaved operational areas that are used by mobile equipment to control fugitive dust.
Treatment shall be of sufficient frequency and quantity to maintain the surface material in a
damp/moist condition unless the ambient temperature is below freezing. The opacity shall not
exceed the limits listed in this AO at all times the areas are in use. If chemical treatment is to
be used, the plan must be approved by the Director. [R307-401-8]

II.B.2.e.1
NEW
The owner/operator shall keep records of water and/or chemical treatment shall be kept for all
periods when the plant is in operation. The records shall include the following items:

A. Date and time of day treatments were made

B. Number of treatments made, dilution ratio (chemical treatment only), and quantity

C. Rainfall received, if any. [R307-401-8]

II.B.2.f
NEW
The owner/operator shall water the storage piles to minimize generation of fugitive dusts as
dry conditions warrant or as determined necessary by the Director. [R307-401-8]

II.B.2.f.1
NEW
Records of water and/or chemical treatment shall be kept for all periods when the plant is in
operation. [R307-401-8]

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 8
PERMIT HISTORY

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

Supersedes DAQE-AN0103860001-09 dated August 5, 2009
Incorporates Additional Information dated August 29, 2024
Incorporates Additional Information dated September 9, 2024

REVIEWER COMMENTS

1. Comment regarding 10-year review:
This administrative amendment updates the previous approval order DAQE-AN0103860001-09. The
contact information and cover page information have been updated. The requirements section has
been updated to use active voice. References to the "Executive Secretary" have been replaced with
"The Director". Some conditions have been separated into secondary and tertiary conditions,
including conditions II.B.1.b. All recordkeeping requirements have been reformatted into a list.

It is likely that mobile source emissions are included in the permit as combustion equipment was not
previously listed on site, but the previous AO had a potential to emit of 8.30 tons of NOx and 2.5
tons of CO. Any future modifications should remove these emissions from the approval order. The
previous AO did not include a water heater, but the source confirmed that there is a 4.9 MMBtu/hr
water heater on site. The heater is exempt equipment per R307-401-10, and was administratively
added to the equipment list. An emission estimate for the heater was made using AP-42 Tables 1.4-1
and 1.4-2, and Table A-1 to Subpart A of Part 98. These emissions were added to the previous total.
The previous approval order did not include an estimate for PM2.5. To be conservative, emissions of
PM10 were assumed to be equal to emissions of PM2.5. [Last updated October 17, 2024]

2. Comment regarding NSPS and MACT Review:
40 CFR 60 (NSPS) Subpart Dc applies to "each steam generating unit for which construction,
modification, or reconstruction is commenced after June 9, 1989 and that has a maximum design
heat input capacity of 29 megawatts (MW) (100 million British thermal units per hour (MMBtu/h))
or less, but greater than or equal to 2.9 MW (10 MMBtu/h)." The facility has a 4.9 MMBtu/hr water
heater on site which does not meet the applicability criteria in this subpart. Therefore, this subpart
does not apply to the facility.

40 CFR 63 (MACT) Subpart JJJJJJ applies to each new, reconstructed, or existing industrial,
commercial, or institutional boiler located within an area source. This subpart does not apply to
exempt equipment defined under 40 CFR 63.11195. The water heater on site is a "Gas-fired Boiler"
as defined by this subpart, and is therefore not subject to this subpart. This subpart does not apply to
the facility. [Last updated October 17, 2024]

3. Comment regarding Title V:
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.

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 9
4. Any Title IV affected source.

This source is not a major source, or a Title IV affected source. The facility is not subject to 40 CFR
60 (NSPS), 40 CFR 61 (NESHAP) or 40 CFR 63 (MACT) regulations. There are no other reasons
why this source would be required to obtain a Title V permit; therefore, Title V does not apply to
this facility.
[Last updated October 17, 2024]

Engineer Review N103860002: Geneva Rock Products- Murray Concrete Batch Plant
October 17, 2024
Page 10
ACRONYMS
The following lists commonly used acronyms and associated translations as they apply to this
document:
40 CFR Title 40 of the Code of Federal Regulations
AO Approval Order
BACT Best Available Control Technology
CAA Clean Air Act
CAAA Clean Air Act Amendments
CDS Classification Data System (used by EPA to classify sources by size/type)
CEM Continuous emissions monitor
CEMS Continuous emissions monitoring system
CFR Code of Federal Regulations
CMS Continuous monitoring system
CO Carbon monoxide
CO2 Carbon Dioxide
CO2e Carbon Dioxide Equivalent - 40 CFR Part 98, Subpart A, Table A-1
COM Continuous opacity monitor
DAQ/UDAQ Division of Air Quality
DAQE This is a document tracking code for internal UDAQ use
EPA Environmental Protection Agency
FDCP Fugitive dust control plan
GHG Greenhouse Gas(es) - 40 CFR 52.21 (b)(49)(i)
GWP Global Warming Potential - 40 CFR Part 86.1818-12(a)
HAP or HAPs Hazardous air pollutant(s)
ITA Intent to Approve
LB/HR Pounds per hour
LB/YR Pounds per year
MACT Maximum Achievable Control Technology
MMBTU Million British Thermal Units
NAA Nonattainment Area
NAAQS National Ambient Air Quality Standards
NESHAP National Emission Standards for Hazardous Air Pollutants
NOI Notice of Intent
NOx Oxides of nitrogen
NSPS New Source Performance Standard
NSR New Source Review
PM10 Particulate matter less than 10 microns in size
PM2.5 Particulate matter less than 2.5 microns in size
PSD Prevention of Significant Deterioration
PTE Potential to Emit
R307 Rules Series 307
R307-401 Rules Series 307 - Section 401
SO2 Sulfur dioxide
Title IV Title IV of the Clean Air Act
Title V Title V of the Clean Air Act
TPY Tons per year
UAC Utah Administrative Code
VOC Volatile organic compounds

GRP. 3900 S. Engineering Review AO. 2024
Final Audit Report 2024-11-15
Created:2024-11-13
By:Grant Ensign ([e-mail])
Status:Signed
Transaction ID:CBJCHBCAABAAGo2lPNOLt5M6CL7l9HlwhYKWLSad_X6z
"GRP. 3900 S. Engineering Review AO. 2024" History
Document created by Grant Ensign ([e-mail])
2024-11-13 - 9:36:40 PM GMT
Document emailed to Jay Ritchie ([e-mail]) for signature
2024-11-13 - 9:36:45 PM GMT
Email viewed by Jay Ritchie ([e-mail])
2024-11-15 - 4:46:24 PM GMT
Document e-signed by Jay Ritchie ([e-mail])
Signature Date: 2024-11-15 - 4:46:53 PM GMT - Time Source: server
Agreement completed.
2024-11-15 - 4:46:53 PM GMT
Dylan Frederick <[e-mail]>
Information Request For 10-year reviews of Geneva Rock Products Approval Orders
10 messages
Dylan Frederick <[e-mail]>Thu, Aug 29, 2024 at 10:17 AM
To: [e-mail]
Good Morning,
The Utah Division of Air Quality is conducting a 10-year review of the Murray Concrete Batch Plant (DAQE-
AN0103860001-24) and the Castle Dale Concrete Batch Plant (DAQE-ANAN0130750003-09). This review will update the
formatting and language of these AOs to make it similar to modern permits. The permit requirements will stay the same.
However, if state or federal laws have changed since the AO was issued, the requirements in your AO may be subject to
change. You or your company will NOT be charged anything for this project. I just have a couple of questions.
Are you the best person to contact regarding these approval orders? If not who is the best contact for these sites?
Are these the correct addresses for the sites?
Murray:
Physical and Mailing Address - 350 West, 3900 South, Murray, Utah, 84107
Castle Dale:
Physical Address - 4169 North DesBee Dove Road, Castle Dale, Utah, 84513
Mailing Address - 1565 West 400 North, P.O. Box 538, Orem, Utah, 84057
And are the names of the sites correct?
Thank you for your help with this project,
Dylan
--
Dylan Frederick
Environmental Engineer | Minor NSR Section
P: [phone]
airquality.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
Grant Ensign <[e-mail]>Thu, Aug 29, 2024 at 10:55 AM
To: Dylan Frederick <[e-mail]>
Hi Dylan,
Yes, I’m the best contact for these.
The batch plant on 3900 is sll acve and the site address is correct. Please update the mailing address to: 730 N.
1500 W., Orem, UT 84057
9/10/24, 4:14 PM State of Utah Mail - Information Request For 10-year reviews of Geneva Rock Products Approval Orders
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-a:r3728605791003454146&simpl=msg-a:r-481291306584480…1/4
You don't often get email from [e-mail]. Learn why this is important
As far as the permit for Castle Dale, we are likely just going to terminate that permit. We don't have a batch plant on
that property anymore. I'm checking with management so hang ght on that one but know it's probably just going to
be cancelled.
—————
Grant Ensign
Clyde Companies
ENVIRONMENTAL SPECIALIST
O [phone]
C [phone]
WWW.CLYDEINC.COM
From: Dylan Frederick <[e-mail]>
Sent: Thursday, August 29, 2024 10:17:14 AM
To: Grant Ensign <[e-mail]>
Subject: Informaon Request For 10-year reviews of Geneva Rock Products Approval Orders

[Quoted text hidden]
Dylan Frederick <[e-mail]>Thu, Aug 29, 2024 at 11:39 AM
To: Grant Ensign <[e-mail]>
Thank you Grant. Please keep me updated on the Castle Dale AO and let me know if you need a revocation form for that
approval order.
For the Murray Concrete Batch plant, should the equipment list remain the same as the current AO? I have the AO
attached to this email. Please let me know if any equipment should be removed. The last compliance inspection in
November of 2021 noted all equipment was on site and operating.
[Quoted text hidden]
DAQE-AN0103860001-09.pdf
308K
Grant Ensign <[e-mail]>Thu, Aug 29, 2024 at 11:41 AM
To: Dylan Frederick <[e-mail]>
Hi Dylan,
Thanks!
Do you mind sending that revocaon form so I can get started on it?
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

From: Dylan Frederick <[e-mail]>
Sent: Thursday, August 29, 2024 11:39 AM
9/10/24, 4:14 PM State of Utah Mail - Information Request For 10-year reviews of Geneva Rock Products Approval Orders
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-a:r3728605791003454146&simpl=msg-a:r-481291306584480…2/4
To: Grant Ensign <[e-mail]>
Subject: Re: Informaon Request For 10-year reviews of Geneva Rock Products Approval Orders

[Quoted text hidden]
Dylan Frederick <[e-mail]>Thu, Aug 29, 2024 at 11:42 AM
To: Grant Ensign <[e-mail]>
Grant,
Here is the link: https://utahgov.co1.qualtrics.com/jfe/form/SV_0OFm4bCnka4CQVo
[Quoted text hidden]
Grant Ensign <[e-mail]>Thu, Aug 29, 2024 at 1:21 PM
To: Dylan Frederick <[e-mail]>
HI Dylan,
I heard back from management and they agreed to terminate the Castle Dale air permit. I completed the online form.
Thanks.
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

From: Dylan Frederick <[e-mail]>
Sent: Thursday, August 29, 2024 11:42 AM
[Quoted text hidden]

[Quoted text hidden]
Dylan Frederick <[e-mail]>Thu, Aug 29, 2024 at 1:32 PM
To: Grant Ensign <[e-mail]>
Grant,
Thanks for your fast response time and updates. That revocation should be processed soon.
[Quoted text hidden]
Outlook-Clyde Comp.png
5K
Dylan Frederick <[e-mail]>Sat, Sep 7, 2024 at 3:48 PM
To: Grant Ensign <[e-mail]>
Grant,
I just wanted to double check and make sure it's ok to keep the equipment list the same for the Murray concrete batch
plant.
9/10/24, 4:14 PM State of Utah Mail - Information Request For 10-year reviews of Geneva Rock Products Approval Orders
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-a:r3728605791003454146&simpl=msg-a:r-481291306584480…3/4
[Quoted text hidden]
Grant Ensign <[e-mail]>Mon, Sep 9, 2024 at 9:25 AM
To: Dylan Frederick <[e-mail]>
The equipment is all the same but would it be possible to remove the make and model from the concrete batch plant
and baghouse to make it more generic?
Thanks.
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

From: Dylan Frederick <[e-mail]>
Sent: Saturday, September 7, 2024 3:48 PM
[Quoted text hidden]

[Quoted text hidden]
Dylan Frederick <[e-mail]>Tue, Sep 10, 2024 at 3:39 PM
To: Grant Ensign <[e-mail]>
Grant,
I can definitely do that. I'll remove the references to the make and model. I actually got a comment from my peer
mentioning it would be nice to remove it as well, so good timing.
[Quoted text hidden]
Outlook-Clyde Comp.png
5K
9/10/24, 4:14 PM State of Utah Mail - Information Request For 10-year reviews of Geneva Rock Products Approval Orders
https://mail.google.com/mail/u/0/?ik=8010e5eaf2&view=pt&search=all&permthid=thread-a:r3728605791003454146&simpl=msg-a:r-481291306584480…4/4
Equipment Details
Rating 5 MMBtu/hour
Operational Hours 8,760 hours/yearFiringNormal
Criteria Pollutant
Concentration
(ppm)
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
NOX 100 0.48 2.10
CO 84 0.40 1.77
PM10 7.6 0.04 0.16
PM2.5 7.6 0.04 0.16
SO2 0.6 0.00 0.01
VOC 5.5 0.03 0.12
Lead 0.0005 0.00 0.00
HAP 0.01 0.04 See Below
Green House Gas Pollutant
Global
Warming
Potential
Emission
Factor
(lb/10^6 scf)
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
CO2 (mass basis)1 120,000 576 2,525
Methane (mass basis)25 2.3 0.01 0.05
N2O (mass basis)298 2.2 0.01 0.05
CO2e 2,540
Hazardous Air Pollutant
Emission
Rate
(lbs/hr)
Emission
Total
(tons/year)Reference
2-Methylnaphthalene 2.40E-05 1.15E-07 5.05E-073-Methylchloranthrene 1.80E-06 8.65E-09 3.79E-08
7,12-Dimethylbenz(a)anthracene 1.60E-05 7.69E-08 3.37E-07
Acenaphthene 1.80E-06 8.65E-09 3.79E-08
Acenaphthylene 1.80E-06 8.65E-09 3.79E-08
Anthracene 2.40E-06 1.15E-08 5.05E-08
Benz(a)anthracene 1.80E-06 8.65E-09 3.79E-08Benzene2.10E-03 1.01E-05 4.42E-05
Benzo(a)pyrene 1.20E-06 5.76E-09 2.52E-08Benzo(b)fluoranthene 1.80E-06 8.65E-09 3.79E-08
Benzo(g,h,i)perylene 1.20E-06 5.76E-09 2.52E-08Benzo(k)fluoranthene 1.80E-06 8.65E-09 3.79E-08
Chrysene 1.80E-06 8.65E-09 3.79E-08
Dibenzo(a,h)anthracene 1.20E-06 5.76E-09 2.52E-08
Dichlorobenzene 1.20E-03 5.76E-06 2.52E-05
Fluoranthene 3.00E-06 1.44E-08 6.31E-08Fluorene2.80E-06 1.35E-08 5.89E-08
Formaldehyde 7.50E-02 3.60E-04 1.58E-03Hexane1.80E+00 8.65E-03 3.79E-02
Indeno(1,2,3-cd)pyrene 1.80E-06 8.65E-09 3.79E-08Naphthalene6.10E-04 2.93E-06 1.28E-05
Phenanathrene 1.70E-05 8.17E-08 3.58E-07Pyrene5.00E-06 2.40E-08 1.05E-07
Toluene 3.40E-03 1.63E-05 7.15E-05Arsenic2.00E-04 9.61E-07 4.21E-06
Beryllium 1.20E-05 5.76E-08 2.52E-07Cadmium1.10E-03 5.28E-06 2.31E-05
Chromium 1.40E-03 6.73E-06 2.95E-05
Cobalt 8.40E-05 4.04E-07 1.77E-06
Manganese 3.80E-04 1.83E-06 8.00E-06
Mercury 2.60E-04 1.25E-06 5.47E-06Nickel2.10E-03 1.01E-05 4.42E-05Selenium2.40E-05 1.15E-07 5.05E-07
AP-42 Table 1.4-4
Manufacturer Data
or AP-42 Table 1.4-1
AP-42 Table 1.4-2
Natural Gas-Fired Boilers & Heaters
AP-42 Table 1.4-2
&
Table A-1 to
Subpart A of Part 98
AP-42 Table 1.4-3
Emission Factor
(lb/10^6 scf)
Page 1 of 1 Version 1.0
November 29, 2018