DAQ-2024-004289

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

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor
DAQC-1282-23
Site 12121 (B1)

Tyler Hodson
Kilgore Companies
7057 West 2100 South
Salt Lake City, Utah 84128

Dear Mr. Hodson:

Re: Kilgore Companies – Modification to Temporary Relocation/Operation – DAQC-1101-23
– Additional Equipment – Juab County

Your request dated November 20, 2023, to add an additional VSI crusher and a feeder to the
temporary project for Kilgore Construction's Pit, located 2.2 miles north of Mona, Utah, was
received by the Utah Division of Air Quality (DAQ) and has been reviewed.

The following equipment has now been approved for operation for this temporary project:

Aztek VSO crusher
Site boss feeder
Remco VSI crusher
Finlay two deck track mounted screen plant
Astec CS3055 jaw crusher
Caterpillar 300 kW generator

The State of Utah has permitted portable aggregate equipment for operation for your company on
the Approval Order (AO) DAQE-AN129310019-18 dated April 12, 2018. The above relocation
address is a permanent aggregate processing operation with established rolling total production
limits. All equipment operating at this location must be in accordance with this site’s current AO
DAQE-AN121210002-16, originally issued to Westroc Inc., dated March 7, 2016. The production
of aggregate from this temporary project when combined with the permanent equipment’s
production cannot exceed the 12-month rolling limits as per Condition II.B.1.b.A of this AO.

" " * " / Þ Û Ù Û Ü
DAQC-1282-23
Page 2

Approval is granted to relocate and operate this equipment at the new location for a period not to
exceed 180 operational days. As per Utah Administrative Code (UAC) R307-401-17, the
operation of equipment at this temporary site may be for up to 180 working days in any calendar
year not to exceed 365 consecutive days, starting from the initial relocation date. The operational
days per site cannot be extended beyond the stipulated 365 consecutive day period.

The owner/operator shall maintain records of the actual operation hours, days, and production
rate, of the above referenced equipment at this relocation site and have the ability to submit the
information to the DAQ upon the request of representatives of the director. Please make certain
that the plant operator is aware of all the location specific requirements for this site and the
conditions of the aforementioned AO.

Federal New Source Performance Standards Subpart OOO requires that initial Method 9
observations be performed for all crushers constructed, modified, or reconstructed on or after
April 22, 2008, which are not enclosed, must install spray bars on the equipment and keep
maintenance records to ensure proper spray bar operations.

Utah Division of Water Quality Storm Water Permits and regulations may apply to this temporary
project. Please refer to Utah DEQ Water Quality’s current Storm Water Construction
requirements for additional information.

This approval for relocation in no way releases the owner or operator from any liability for
compliance with all other applicable federal, state, and local regulations including the UAC.

If you have any questions regarding this relocation authorization or the temporary relocation
process please contact Susan Weisenberg at [phone].

Sincerely,

Jay P. Morris
Assistant Director

JPM:SW:rh

Enclosure: Submitted equipment addition request
DAQC-1101-23 Authorization Letter

cc: Central Utah Public Health Department
4 * - - $ . — C v A ? A B @ A w ? G ˜
11/21/23, 7:10 PM State of Utah Mail - RE: Mona Pit equipment added authorization
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r1131149012396902844%7Cmsg-f:1783130569936959616…1/2
Susan Weisenberg <[e-mail]>
RE: Mona Pit equipment added authorization
1 message
Tyler Hodson <[e-mail]>Mon, Nov 20, 2023 at 5:16 PM
To: Susan Weisenberg <[e-mail]>
Cc: Lee Ware <[e-mail]>, Bryan Jorgensen <[e-mail]>
Hi Susan,

I am needing to make a modification to our Temporary Relocation permit for our Highland site in Utah County, Permit # C-
1101-23. We are adding some new equipment temporarily to the site. The information for the equipment are as follows:

Equipment Type: VSI Crusher
Make/Model: FT 2500 Aztek
Serial #: 420094
Manufactured Date: 2022
Design Capacity: 300 tph
Equipment Type: Track Feeder
Make/Model: Site Boss Feeder
Serial #: SB848T119
Manufactured Date: 2022
Design Capacity: 800 tph

Startup time: 6:00 am
Total Operation per 24 hour period: 12 hours
Maximum hourly production rate: 180 tons
Expected startup date: 11/22/2023
Expected completion date: 12/22/2023

All other information that was submitted for this relocation permit will remain the same.

Please let me know if you need any other information from me.

Thank you,

Tyler Hodson
Environmental Compliance Coordinator
11/21/23, 7:10 PM State of Utah Mail - RE: Mona Pit equipment added authorization
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r1131149012396902844%7Cmsg-f:1783130569936959616…2/2
[phone]
[e-mail]

From: Susan Weisenberg <[e-mail]>
Sent: Monday, October 16, 2023 9:14 AM
To: Tyler Hodson <[e-mail]>
Subject: Mona Pit equipment added authorization

This message originated from outside your organization
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512

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

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor
DAQC-1101-23
Site 12121 (B1)

Tyler Hodson
Kilgore Companies
7057 West 2100 South
Salt Lake City, Utah 84128

Dear Mr. Hodson:

Re: Kilgore Companies – Modification to Temporary Relocation/Operation – DAQC-760-23 –
Additional Equipment – Juab County

Your request dated October 10, 2023, to add a VSI crusher and a track mounted screen plant to the
temporary project for Kilgore Construction's Pit, located 2.2 miles north of Mona, Utah, was
received by the Utah Division of Air Quality (DAQ) and has been reviewed.

The following equipment has now been approved for operation for this temporary project:

Remco VSI crusher
Finlay two deck track mounted screen plant
Astec CS3055 jaw crusher
Caterpillar 300 kW generator

The State of Utah has permitted portable aggregate equipment for operation for your company on
the Approval Order (AO) DAQE-AN129310019-18 dated April 12, 2018. The above relocation
address is a permanent aggregate processing operation with established rolling total production
limits. All equipment operating at this location must be in accordance with this site’s current AO
DAQE-AN121210002-16, originally issued to Westroc Inc., dated March 7, 2016. The production
of aggregate from this temporary project when combined with the permanent equipment’s
production cannot exceed the 12-month rolling limits as per Condition II.B.1.b.A of this AO.

Approval is granted to relocate and operate this equipment at the new location for a period not to
exceed 180 operational days. As per Utah Administrative Code (UAC) R307-401-17, the
operation of equipment at this temporary site may be for up to 180 working days in any calendar
year not to exceed 365 consecutive days, starting from the initial relocation date. The operational
days per site cannot be extended beyond the stipulated 365 consecutive day period.
1 , " / Ú ß Û Ù Û Ü
DAQC-1101-23
Page 2

The owner/operator shall maintain records of the actual operation hours, days, and production
rate, of the above referenced equipment at this relocation site and have the ability to submit the
information to the DAQ upon the request of representatives of the director. Please make certain
that the plant operator is aware of all the location specific requirements for this site and the
conditions of the aforementioned AO.

Federal New Source Performance Standards Subpart OOO requires that initial Method 9
observations be performed for all crushers constructed, modified, or reconstructed on or after
April 22, 2008, which are not enclosed, must install spray bars on the equipment and keep
maintenance records to ensure proper spray bar operations.

Utah Division of Water Quality Storm Water Permits and regulations may apply to this temporary
project. Please refer to Utah DEQ Water Quality’s current Storm Water Construction
requirements for additional information.

This approval for relocation in no way releases the owner or operator from any liability for
compliance with all other applicable federal, state, and local regulations including the UAC.

If you have any questions regarding this relocation authorization or the temporary relocation
process please contact Susan Weisenberg at [phone].

Sincerely,

Jay P. Morris
Assistant Director

JPM:SW:rh

Enclosure: Submitted equipment addition request
DAQC-760-23 Authorization Letter

cc: Central Utah Public Health Department
4 * - - $ . — / @ B v A ? A B @ B w C A ˜
10/10/23, 7:23 PM State of Utah Mail - RE: Relocation modification to Mona Pit approved
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-2745629855792654459%7Cmsg-f:177938396808022358…1/2
Susan Weisenberg <[e-mail]>
RE: Relocation modification to Mona Pit approved
1 message
Tyler Hodson <[e-mail]>Tue, Oct 10, 2023 at 9:46 AM
To: Susan Weisenberg <[e-mail]>
Cc: Lee Ware <[e-mail]>, Bryan Jorgensen <[e-mail]>
Hi Susan,

I am needing to make a modification to our Temporary Relocation permit for our Mona site in Juab County, Permit # C-
760-23. We are adding some new equipment temporarily to the site. The information for the equipment is as follows:

Equipment Type: VSI Crusher
Make/Model: REMCO 4060-ST Sandmax
Serial #: TR-4060-0922-117
Manufactured Date: 2023
Design Capacity: 300 tph
Equipment Type: Track Mount Screen Plant
Make/Model: Finlay 969 2 Deck
Serial #: TRX00696LDGP41320
Manufactured Date: 2023
Design Capacity: 100 tph

Startup time: 4:00 am
Total Operation per 24 hour period: 20 hours
Maximum hourly production rate: 400 tons
Expected startup date: 10/16/2023
Expected completion date: 11/13/2023

All other information that was submitted for this relocation permit will remain the same.

Please let me know if you need any other information from me.

Thank you,

Tyler Hodson
Environmental Compliance Coordinator
[phone]
[e-mail]
10/10/23, 7:23 PM State of Utah Mail - RE: Relocation modification to Mona Pit approved
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-2745629855792654459%7Cmsg-f:177938396808022358…2/2

From: Susan Weisenberg <[e-mail]>
Sent: Tuesday, July 25, 2023 6:02 PM
To: Tyler Hodson <[e-mail]>
Subject: Relocation modification to Mona Pit approved

This message originated from outside your organization
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512

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

Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor
DAQC-760-23
Site 12121 (B1)

Tyler Hodson
Kilgore Companies
7057 West 2100 South
Salt Lake City, Utah 84128

Dear Mr. Hodson:

Re: Kilgore Companies – Modification to Temporary Relocation/Operation DAQC-614-23 –
Crusher Replacement – Juab County

Your request dated July 20, 2023, to replace an Eagle HSI crusher with an Astec jaw crusher, at
the temporary project for Kilgore Construction's Pit, located 2.2 miles north of Mona, Utah, was
received by the Utah Division of Air Quality (DAQ) and has been reviewed.

The following equipment has now been approved for operation for this temporary project:

Astec CS3055 jaw crusher
Caterpillar 300 kW generator

The State of Utah has permitted portable aggregate equipment for operation for your company on
the Approval Order (AO) DAQE-AN129310019-18 dated April 12, 2018. The above relocation
address is a permanent aggregate processing operation with established rolling total production
limits. All equipment operating at this location must be in accordance with this site’s current AO
DAQE-AN121210002-16, originally issued to Westroc Inc., dated March 7, 2016. The production
of aggregate from this temporary project when combined with the permanent equipment’s
production cannot exceed the 12-month rolling limits as per Condition II.B.1.b.A of this AO.

Approval is granted to relocate and operate this equipment at the new location for a period not to
exceed 180 operational days. As per Utah Administrative Code (UAC) R307-401-17, the
operation of equipment at this temporary site may be for up to 180 working days in any calendar
year not to exceed 365 consecutive days, starting from the initial relocation date. The operational
days per site cannot be extended beyond the stipulated 365 consecutive day period.

DAQC-760-23
Page 2

The owner/operator shall maintain records of the actual operation hours, days, and production
rate, of the above referenced equipment at this relocation site and have the ability to submit the
information to the DAQ upon the request of representatives of the director. Please make certain
that the plant operator is aware of all the location specific requirements for this site and the
conditions of the aforementioned AO.

Federal New Source Performance Standards Subpart OOO requires that initial Method 9
observations be performed for all crushers constructed, modified, or reconstructed on or after
April 22, 2008, which are not enclosed, must install spray bars on the equipment and keep
maintenance records to ensure proper spray bar operations.

Utah Division of Water Quality Storm Water Permits and regulations may apply to this temporary
project. Please refer to Utah DEQ Water Quality’s current Storm Water Construction
requirements for additional information.

This approval for relocation in no way releases the owner or operator from any liability for
compliance with all other applicable federal, state, and local regulations including the UAC.

If you have any questions regarding this relocation authorization or the temporary relocation
process please contact Susan Weisenberg at [phone].

Sincerely,

Jay P. Morris
Assistant Director

JPM:SW:rh

Enclosure: Submitted replacement request
Original electronic submission

cc: Central Utah Public Health Department