DAQ-2024-008213

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-487-24
Site ID 12058 (B1)

Tyler Hodson
Kilgore Companies, LLC
P.O. Box 869
Magna, UT 84044

Dear Mr. Hodson:

Re: Kilgore Companies, LLC – Modification to Temporary Relocation DAQC-894-23 –
Replacement of Screening Plant – Salt Lake County

Your request dated May 20, 2024, to replace the screening plant used for the temporary project for
Kilgore Companies’ Pit #16 Parley’s Canyon facility, located off the I-80 Quarry Exit 131, Salt
Lake City, UT 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:

TC-20 IROCK HSI crusher with 560 kW generator engine
McCloskey screen plant with 130 hp generator engine
Anaconda track stacker with 63 kW stacker generator engine

The State of Utah has permitted portable equipment for Kilgore Contracting, LLC on the
Approval Order DAQE-AN129310019-18 dated April 12, 2018. The above referenced location is
a permitted aggregate facility with established equipment hours of operation and production
limits. All equipment operating at this site must be in accordance with the current Approval Order
(AO) for this site DAQE-AN0120580008-10 dated June 9, 2010. The production of aggregate and
generator hours of operation from all temporary projects when combined with the permanent
equipment’s production and generator hours of operation cannot exceed the 12-month rolling
limits as per Conditions II.B.1.a.A and II.B.1.a.B of this AO.

6 Û Ü Û Ù Û Ý
DAQC-487-24
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 applicable portable crushers, screens, and attached conveyors.
Subpart OOO also mandates that 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:jl

Enclosure: Submitted Temporary Relocation Form

cc: Salt Lake County Health Department

4 * - - $ . — 4 A A v A ? A C @ D w D D ˜
Susan Weisenberg <[e-mail]>
RE: Parley's Quarry TRP
1 message
Tyler Hodson <[e-mail]>Mon, May 20, 2024 at 12:28 PM
To: Susan Weisenberg <[e-mail]>
Cc: Bryan Jorgensen <[e-mail]>
Susan,

Thank you for sending this, it’s exactly what we were looking for. We are needing to replace the equipment
on the TRP with a different screening plant. The equipment that we would like to add to the TRP is:

Equipment Type: Screening Plant
Make/Model: McCloskey S190
Serial #: 92286
Manufactured Date: June 2023
Design Capacity: 300 tph

This plant is powered by a 130 hp attached generator engine. All the other temporary equipment from DAQC-894-23 has
been moved off site, but all other information for the temporary project will remain the same.

Please let me know if you need any other information.

Thank you,

Tyler Hodson
Administrative Environmental Manager
[phone]
[e-mail]

5/21/24, 10:57 AM State of Utah Mail - RE: Parley's Quarry TRP
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1799591051177588558%7Cmsg-f:1799597318568021773&…1/3
From: Susan Weisenberg <[e-mail]>
Sent: Monday, May 20, 2024 11:12 AM
To: Tyler Hodson <[e-mail]>
Subject: Re: Parley's Quarry TRP

I believe this is the TRP. Let me know if this is not the correct missing authorization.
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512

On Mon, May 20, 2024 at 10:49 AM Tyler Hodson <[e-mail]> wrote:
Hi Susan,

We have had a little bit of personnel turnover lately and we’re having trouble find a TRP we received August of last
year. The site in question where we submitted the information to receive a TRP was Parley’s Quarry – I-80 Exit 31.
Would it be possible to get another copy of that emailed to me? I have attached the TRP payment receipt (dated
08/16/2023) if that might be helpful.

Thank you,

Tyler Hodson
Administrative Environmental Manager
[phone]
[e-mail]

5/21/24, 10:57 AM State of Utah Mail - RE: Parley's Quarry TRP
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1799591051177588558%7Cmsg-f:1799597318568021773&…2/3

5/21/24, 10:57 AM State of Utah Mail - RE: Parley's Quarry TRP
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1799591051177588558%7Cmsg-f:1799597318568021773&…3/3