DAQ-2025-003242

195 North 1950 West • Salt Lake City, Utah
Mailing Address: P.O. Box 144820 • Salt Lake City, Utah 84114-4820
Telephone [phone] • Fax [phone] • T.D.D. 800 346-3128
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

Department of
Environmental Quality

Tim Davis
Executive Director

DIVISION OF AIR QUALITY
Bryce C. Bird
Director

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor
DAQC-660-25
Site 14083 (B1)

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

Dear Mr. Hodson:

Re: Kilgore Companies, LLC – Temporary Relocation/Operation, Notice of Intent – Tooele
County

Your Notice of Intent dated June 24, 2025, to relocate diesel generators and fuel tanks to the
temporary project for Kilgore Companies, LLC - Grantsville Pit, located approximately 5 miles
south of Grantsville, on the Mormon Trail Road, Tooele County, Utah, was received by the Utah
Division of Air Quality (DAQ) and has been reviewed.

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

Two (2) Caterpillar XQ60 66 hp generators
Caterpillar C27 1105 hp generator
JD 6090 225 hp generator
Four (4) fuel tanks

The State of Utah has permitted portable equipment for Kilgore Companies, 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-AN0140830002-09 dated May 19, 2009. The hours of generator operation
from the relocated engines shall be held to 3,750 hours per rolling 12-month period as per
Condition II.B.3.B of the permanent 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.
2 ) 6 â Û Ù Û Þ
DAQ-660-25
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 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:aj

Enclosure: Submitted Temporary Relocation Form

cc: Tooele County Health Department

4 * - - $ . — 0 ' G v A ? A D @ C w D H ˜
Susan Weisenberg <[e-mail]>
Portable/Temporary Relocation Form
1 message
[e-mail] <[e-mail]>Tue, Jun 24, 2025 at 11:24 PM
Reply-To: [e-mail]
To: [e-mail]
Susan/Chad:
Site # -- Kilgore Companies has requested a Temporary Relocation. Please see the information below. Any attachments
can be access by clicking on the links.

Recipient Data:
Time Finished: 2025-06-24 23:24:31 MDT
IP: 136.226.86.253
ResponseID: R_1WOmfIWanveLRZI
Link to View Results: Click Here
URL to View Results: https://utahgov.iad1.qualtrics.com/apps/single-response-reports/reports/
bGgjKdUcQZRcKEuzB2WBSDmsUl1l3CsOO-Tb39_3ev4VZdUu18CYk5NtlOV0rxCXtMzMiFTeFZ56rL5Tb79k3GQXR0_
uiMB2kFWwBAMV1HE1KTy6UXb2I1Unf2Jwq_A0__dkplLDwduAXKsNqAsBkwyMBdgzXN4C
pWdmTEpybjkzjGbXjvCuGM49TrVB9GcyGi45qHqdFG5uicokgZdHQjDJdVQPWb2oAOb340sz_JGAbr9T-
c6NU0jN7RSbwe4LLBz6LJ87kyJBT3WRAgvqN5cyHUjht6pkMnuOWfkxVhLuzVQwpjan8AwiJgiYZX1aRGs8nkzRBFt
jFtm4NAYyZw
Response Summary:
Please fill out the information below:
Contact Person: Tyler Hodson
Company Name: Kilgore Companies
Mailing Address: 869 P.O. Box
City: Magna
Zip: 84044
Phone Number: 385-228-3653
Email: [e-mail]
Is the site located within a PM2.5 non-attainment and maintenance plan areas on cleared land grea...
Yes
All temporary relocation projects are required to submit a Fugitive Dust Control Plan (FDCP). Lo...
1b591ad1-28f4-4f73-99db-f72f14a7889f
Briefly give directions to the site and/or physical address:
From I 80 west take exit 94 south along Midvalley Highway. Turn onto Mormon Trail Road south, site is about 5 miles
Proposed Relocation Information:
Closest City Grantsville
County Tooele
UTM X Coordinates 374257.10 m E
UTM Y Coordinates 374257.10 m E
Approximate distance to the nearest house/business 1.3 Miles
UTM X Coordinates to nearest house/business 376326.60 m E
UTM Y Coordinates to nearest house/business 4484963.24 m N
Does this site currently have a permit with DAQ?
6/27/25, 1:40 PM State of Utah Mail - Portable/Temporary Relocation Form
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1835848344125638521%7Cmsg-f:1835877353198331603&s…1/3
Yes
If yes, what is the Permit (DAQ-AN) # ?
DAQE-AN140830002-09
If yes, what is the Permit Holder's Name?
Kilgore Companies LLC
Please provide the permit ID for the equipment? (DAQE-XXXXXXXXX-XX)
DAQE-AN129310019-18
Please list all the Equipment on Site:Note: It is important to identify ALL diesel powered engine...
1
Equipment Type Generator
Make/Model Caterpillar XQ60
Serial or ID# Unknown
Manufactured Date 2010
Design Capacity 66 HP
2
Equipment Type Generator
Make/Model Caterpillar XQ60
Serial or ID# Unknown
Manufactured Date 2010
Design Capacity 66 HP
3
Equipment Type Generator
Make/Model Caterpillar C27
Serial or ID# Unknown
Manufactured Date 2016
Design Capacity 1105 HP
4
Equipment Type Generator
Make/Model JD 6090
Serial or ID# Unknown
Manufactured Date 2022
Design Capacity 225 HP
5
Equipment Type Fuel Tank
Make/Model NA
Serial or ID# NA
Manufactured Date Unknown
Design Capacity 500 gal
6
Equipment Type Fuel Tank
Make/Model NA
Serial or ID# NA
Manufactured Date Unknown
Design Capacity 500 gal
7
Equipment Type Fuel Tank
Make/Model NA
Serial or ID# NA
Manufactured Date Unknown
Design Capacity 500 gal
8
Equipment Type Fuel Tank
Make/Model NA
Serial or ID# NA
Manufactured Date Unknown
Design Capacity 500 gal
Please attach a site diagram showing the equipment layout and general site dimensions for this re...
https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_3NImjmVZ5cgyAkj
Have any other state or local regulatory agencies issued any other "Conditional Use Permits" for...
6/27/25, 1:40 PM State of Utah Mail - Portable/Temporary Relocation Form
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1835848344125638521%7Cmsg-f:1835877353198331603&s…2/3
Operational Information: (Please note: Operating time over 16 hours in a 24 hour period will re...
Total Hours of operation per 24 hr period 12
Starting time of operation (am/pm) 6 am
Ending time of operation (am/pm) 10 pm
Maximum hourly production rate for project 450
Expected startup date 06/30/2025
Expected completion date 06/30/2026
What type of application is this for?
New Application
In accordance with the fee schedule approved by the Utah State Legislature, the Division of Air Q...
https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_1ZzxBwqLyaoaNIR
Owner/Operator Representative:
https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_1HkLgYP3UKt9yTd
6/27/25, 1:40 PM State of Utah Mail - Portable/Temporary Relocation Form
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1835848344125638521%7Cmsg-f:1835877353198331603&s…3/3
Susan Weisenberg <[e-mail]>
Re: [External]question regarding the relocated generators to Grantsville
1 message
Tyler Hodson <[e-mail]>Mon, Jun 30, 2025 at 10:43 AM
To: Susan Weisenberg <[e-mail]>
Cc: Bryan Jorgensen <[e-mail]>
Good morning Susan,
In regards to generators, the generators included in the TRP applicaon will be the only ones on site. So, to answer
your queson, they will be replacing the 600 kW and 700 kW engines. For where the generators are being used:
1105 hp CAT C27 is going to be used to power the aggregate processing equipment
The first 66 hp CAT XQ60 is going to be used at the well
The second 66 hp CAT XQ60 Is going to be used for the scale
225 hp JD6090 is being used to power the freshwater pump
The fuel tanks are each piped into the generators so that we can fill them up less oen.
We are preparing to submit an NOI so that we can modify the AO.
Please let me know if you need any other informaon.
Thank you,
Tyler Hodson
Administrative Environmental Manager
[phone]
[e-mail]
From: Susan Weisenberg <[e-mail]>
Sent: Friday, June 27, 2025 1:48 PM
To: Tyler Hodson <[e-mail]>
Subject: [External]queson regarding the relocated generators to Grantsville

CAUTION: This email originated from outside of the organization. Exercise caution when
opening attachments or clicking links, especially from UNKNOWN senders.
Hello Tyler,
I've received your relocation request for the generators and fuel tanks to TM Crushing's Grantsville facility.
I have a couple of questions regarding this request:
* Will the proposed generators replace the existing permitted 600 kW and 700 kW engines, or will they be additional
equipment?
* Chad would also like to know the reason for adding these generators and tanks. Additionally, will this equipment be
added to a modified Approval Order for the permanent facility?
Thanks,
Susan
6/30/25, 12:13 PM State of Utah Mail - Re: [External]question regarding the relocated generators to Grantsville
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r6434223630307447778%7Cmsg-f:1836373059875997569…1/2
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
6/30/25, 12:13 PM State of Utah Mail - Re: [External]question regarding the relocated generators to Grantsville
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r6434223630307447778%7Cmsg-f:1836373059875997569…2/2