DAQ-2025-000120

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-1226-24
Site 12776 (B1)

Grant Ensign
Geneva Rock Products
730 North 1500 West
Orem, UT 84057

Dear Mr. Ensign:

Re: Geneva Rock Products – Modification to DAQC-350-24 – Addition of Equipment – Salt
Lake County

Your request dated December 10, 2024, to add a roll crusher and generator to the temporary
project for Geneva Rock Product’s Mount Jordan Pit, located at 15200 South Pony Express
Boulevard, Bluffdale, 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:

500 tph VSI crusher
500 tph roll crusher
Two CAT 328 kW generators
KPI/JCI 500 tph mobile crusher
Screens
Conveyors

The State of Utah has permitted portable equipment for Geneva Rock Products on the Approval
Order (AO) AO DAQE-AN110420003-21 dated February 17, 2021. The above referenced
location is a permitted facility with established production limits. The portable equipment
operating at this facility must be done in accordance with the permanent Geneva Rock Products
AO DAQE-AN127760008-22 dated February 17, 2022. The production of aggregate and hours of
operation from all temporary projects when combined with the permanent equipment’s production
and hours of operation cannot exceed the 12-month rolling limits as per conditions II.B.1.b and
II.B.3.a of this AO.
" " * " / Ú à Û Ù Û Ý
DAQC-1226-24
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:rh

Enclosure: Emailed request to add equipment

cc: Salt Lake County Health Department
4 * - - $ . — @ E v A ? A C @ ? w @ @ ˜
Susan Weisenberg <[e-mail]>
Re: TRP update: Geneva Rock
1 message
Grant Ensign <[e-mail]>Tue, Dec 10, 2024 at 2:17 PM
To: Susan Weisenberg <[e-mail]>
I'm sorry, please ignore the past request and add this instead:
One (1) Roll Crusher @ 500 tons/hour
One (1) CAT 328 kW Generator
The updated permit will then have the following listed:
500 tph VSI Crusher
500 tph Roll Crusher
Two (2) CAT 328 kW Generator
KPI/JCI 500 tph mobile crusher
Screens
Conveyors
Please let me know if you have any quesons.
Thanks!
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

From: Grant Ensign <[e-mail]>
Sent: Tuesday, December 10, 2024 11:36 AM
To: Susan Weisenberg <[e-mail]>
Subject: TRP update: Geneva Rock

Hi Susan,
Please update the TRP (DAQC-350-24) to include the following:
One (1) Roll Crusher @ 500 tons/hour
12/12/24, 9:42 AM State of Utah Mail - Re: TRP update: Geneva Rock
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1818079580070033314%7Cmsg-f:1818089679581742972&s…1/2
Thanks!
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

12/12/24, 9:42 AM State of Utah Mail - Re: TRP update: Geneva Rock
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-f:1818079580070033314%7Cmsg-f:1818089679581742972&s…2/2