DAQ-2024-007734

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-400-24
Site 12776 (B1)

Grant Ensign
Geneva Rock Products, Inc.
730 North 1500 West
Orem, Utah 84057

Dear Mr. Ensign:

Re: Geneva Rock Products, Inc. – Temporary Relocation/Operation, Notice of Intent – Salt
Lake County

Your Notice of Intent dated April 12, 2024, to relocate portable concrete batch plant equipment to
the temporary project for Geneva Rock Products’ Mount Jordan Operations located at 15200
South Pony Express Road, Bluffdale, 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:

125 cubic yard per hour 73-2038 mobile concrete batch plant
5 MMBtu/hr diesel water heater
Cat 525 kW diesel generator

The State of Utah has permitted portable equipment for Geneva Rock Products on the Approval
Order (AO) DAQE-AN110420003-21 dated March 17, 2021. The Mount Jordan pit is a
permanent aggregate facility with emissions established by the AO AN127760008-22, dated
February 27, 2022. Approval is granted to relocate and operate the concrete batch plant equipment
at this 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. Approval is subject to the conditions of the dust control plan submitted for this
location and the applicable conditions of the above referenced portable AO. Hours of operation
shall be held to 16 hours each day. The maximum production rate shall be held to the requested
125 cubic yards per hour.

6 Û Û Ù Û Ý
DAQC-400-24
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.

Utah Division of Water Quality Storm Water Permits and regulations may apply to this temporary
project. Please refer to https://secure.utah.gov/deq-dashboard/index.html 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 Temporary Relocation Form

cc: Salt Lake County Health Department
4 * - - $ . — 4 @ v A ? A C @ C w A C ˜
Susan Weisenberg <[e-mail]>
Portable/Temporary Relocation Form
1 message
[e-mail] <[e-mail]>Fri, Apr 12, 2024 at 4:09 PM
Reply-To: [e-mail]
To: [e-mail]
Susan/Chad:
Site # -- Geneva Rock Products has requested a Temporary Relocation. Please see the information below. Any attachments
can be access by clicking on the links.

Recipient Data:
Time Finished: 2024-04-12 16:09:25 MDT
IP: 64.77.251.44
ResponseID: R_3emTBdKW6IWiixH
Link to View Results: Click Here
URL to View Results: https://utahgov.iad1.qualtrics.com/apps/single-response-reports/reports/xMEgXWYjCdsPicDBe%
2E0VccSp4WpHuh1dB6WgKIiVC2XU87DpTTPwqs6SUTgJQu67PAx3ov7uVZdGqIB0nUNAsmtxGbEJ-
xL1sPPeZg8nswlkzieQFXUFjccAkVAo0yCGLvmpxvXZuXpXxqLzBSUa37ZGpKrefzJ6K80RhR4UjBDwKvo5Xes4Bl9
xvsLOcfLx0ZC5LA7MvDPkxJrEX9rbu6LqeEITvrv0IhTa-5E6apOW%2EFzrZP5yqFQO3RnOzYs0LZRY2tEiY
iVgt4eX65E5sMESfdeOhkZnhxmAjPjpF6cvIuD-ijOSmeX2XULj2LBhbKG6aYRlrr%2E82ze9Y2v85g
Response Summary:
Please fill out the information below:
Contact Person: Grant Ensign
Company Name: Geneva Rock Products
Mailing Address: 730 N 1500 West
City: Orem
Zip: 84057
Phone Number: 8018026954
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...
db9ef44a-0320-4079-a2dd-3793e0d1b11f
Briefly give directions to the site and/or physical address:
Mount Jordan Operations, Across I-15 from Pt. of Mtn., Facility on West side.
Proposed Relocation Information:
Closest City Bluffdale
County Salt Lake
UTM X Coordinates 40.466299
UTM Y Coordinates -111.923065
Approximate distance to the nearest house/business 780 feet
UTM X Coordinates to nearest house/business 40.468240
UTM Y Coordinates to nearest house/business -111.924030
Does this site currently have a permit with DAQ?
Yes
If yes, what is the Permit (DAQ-AN) # ?
DAQE-AN127760008-22
4/29/24, 3:49 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:1796168505992855602%7Cmsg-f:1796168505992855602&…1/2
If yes, what is the Permit Holder's Name?
Geneva Rock Products, Inc.
Please provide the permit ID for the equipment? (DAQE-XXXXXXXXX-XX)
DAQE-AN110420003-21
Please list all the Equipment on Site:Note: It is important to identify ALL diesel powered engine...
1
Equipment Type Mobile Concrete Batch Plant
Serial or ID# 73-2038
Design Capacity 125 CY/hr
2
Equipment Type Diesel Hot Water Heater
Make/Model Natco
Design Capacity 5 MMBTU
3
Equipment Type Diesel Generator
Make/Model CAT
Design Capacity 525 kW
4
Equipment Type Please allow for 24-hour operating since this is for a UDOT project. Thanks!
Have any other state or local regulatory agencies issued any other "Conditional Use Permits" for...
No
Operational Information: (Please note: Operating time over 16 hours in a 24 hour period will re...
Total Hours of operation per 24 hr period 24
Starting time of operation (am/pm) 12 AM
Ending time of operation (am/pm) 12 AM
Maximum hourly production rate for project 125 CY/hr
Expected startup date 05/01/2024
Expected completion date 05/01/2026
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_1P7z4QqJxmtYBNY
Owner/Operator Representative:
https://utahgov.co1.qualtrics.com/WRQualtricsControlPanel/File.php?F=F_ODwNTMLccLxmOWJ
4/29/24, 3:49 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:1796168505992855602%7Cmsg-f:1796168505992855602&…2/2
Susan Weisenberg <[e-mail]>
Re: Geneva Rock's batch plant to Mt Jordan TRP request
Chad Gilgen <[e-mail]>Tue, Apr 16, 2024 at 1:32 PM
To: Susan Weisenberg <[e-mail]>
Cc: Jay Morris <[e-mail]>
Hi Susan,
I discussed this one further with Jay and the hours of operation for this project will be subject to DAQE-AN110420003-21
condition II.B.3.c which states:
The owner/operator shall only operate between 6:00 AM and 10:00 PM each day. The hours of operation may be altered upon
approval of the Director; however, any request for a change in these hours shall include modeling showing that all NAAQS are
met.
In order for Jay/Bryce to grant the request to operate outside of these hours, Geneva is going to need to submit modeling for the
following equipment to show the NAAQs are met.
1
Equipment Type Mobile Concrete Batch Plant
Serial or ID# 73-2038
Design Capacity 125 CY/hr
2
Equipment Type Diesel Hot Water Heater
Make/Model Natco
Design Capacity 5 MMBTU
3
Equipment Type Diesel Generator
Make/Model CAT
Design Capacity 525 kW
Thanks,
Chad
Chad Gilgen | Manager | Minor Source Compliance
385-306-6500 (cell)
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
On Tue, Apr 16, 2024 at 10:05 AM Susan Weisenberg <[e-mail]> wrote:
Hi Chad, when you have a minute - can you give me a call regarding this Geneva Rock UDOT batch plant project? Thanks
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
On Mon, Apr 15, 2024 at 3:40 PM Chad Gilgen <[e-mail]> wrote:
Hi Susan,
Yes, I think you can go ahead and issue the TRP once they have conducted modeling, per portable AO condition II.B.3.c,
since they are requesting the 24-hour operating time period and we will need there to be a statement in the TRP referencing
4/29/24, 3:52 PM State of Utah Mail - Re: Geneva Rock's batch plant to Mt Jordan TRP request
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permmsgid=msg-f:1796521033096103925&simpl=msg-f:17965210330961039…1/2
these requirements as well as approval from the director to operate outside the hours of 6am to 10pm.
Section II.B.3 of the permanent AO states it applies to "All On-Site Diesel Fired Equipment" and Condition II.B.3.a limits use
to 175,000 hp-hrs per rolling 12-month period so they will need to observe those requirements.
We will also need to know the year of manufacture for this generator engine since there is a chance it will be on-site over
365 days which will make it subject to the applicable federal subpart as a stationary engine. If it's a Subpart ZZZZ engine,
then it will require stack testing. If it's a Subpart IIII engine, then they should provide the tier rating, EPA certificate of
conformity, and exhaust emission statement. They will also need to demonstrate they are operating this engine in
accordance with the manufacturer's recommendations. Otherwise, it will be subject to stack testing, per Subpart IIII -
60.4211(g)(3), due to the horsepower being greater than 500 hp.
Thanks and let me know if you have any questions or would like to review anything further.
Chad
Chad Gilgen | Manager | Minor Source Compliance
385-306-6500 (cell)
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
On Mon, Apr 15, 2024 at 11:00 AM Susan Weisenberg <[e-mail]> wrote:
Hello Chad, on April 12th, I received the concrete batch plant TRP application that Grant Ensign requested with a 24-hour
operation due to UDOT requirements. The requested location is the Mount Jordan aggregate facility (12776). The
permanent AO for this site doesn't seem to restrict general operations (other than bulldozers), however there is an hourly
restriction for the single permitted diesel generator that is probably part of a specific crushing circuit.
The batch plant will be using a portable hot water heater and a generator. Can I issue them a temporary authorization for
the batch plant and the support equipment at this site? I can reference the diesel engine requirements on their portable
AO. Thanks.
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
4/29/24, 3:52 PM State of Utah Mail - Re: Geneva Rock's batch plant to Mt Jordan TRP request
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permmsgid=msg-f:1796521033096103925&simpl=msg-f:17965210330961039…2/2
Susan Weisenberg <[e-mail]>
Re: Geneva Rock Product's TRP to the Mount Jordan Pit
1 message
Grant Ensign <[e-mail]>Mon, Apr 29, 2024 at 3:40 PM
To: Chad Gilgen <[e-mail]>, Susan Weisenberg <[e-mail]>
Cc: Jay Morris <[e-mail]>, Alan Humpherys <[e-mail]>
Hi All,
We appreciate your paence as we've tried to schedule a meeng to discuss the need to model the 24-hour temporary
concrete batch plant on a property that already has an AO (the AO does not have a concrete batch plant listed). It's been a
struggle to have all of our schedules line up. Susan sent a good explanaon and we are now less concerned about the "why"
modeling is required and are ready to move onto the next step of actually modeling. In other words, we are okay not to
have a meeng at this me and feel sasfied with the informaon we've received.
Please connue issuing the TRP under a 16-hour operaon and we'll begin the modeling before we request 24-hour
operaon.
Thanks.
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

From: Chad Gilgen <[e-mail]>
Sent: Monday, April 29, 2024 1:42 PM
To: Susan Weisenberg <[e-mail]>
Cc: Grant Ensign <[e-mail]>; Jay Morris <[e-mail]>; Alan Humpherys
<[e-mail]>
Subject: Re: Geneva Rock Product's TRP to the Mount Jordan Pit

Hello Grant,
I am not available at 10am tomorrow/Tuesday. I am available 11am - 2pm on Tuesday and pretty much anytime on Wednesday.
Thanks,
Chad
Chad Gilgen | Manager | Minor Source Compliance
385-306-6500 (cell)
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
On Tue, Apr 23, 2024 at 2:40 PM Susan Weisenberg <[e-mail]> wrote:
4/29/24, 4:06 PM State of Utah Mail - Re: Geneva Rock Product's TRP to the Mount Jordan Pit
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-637704567062188545%7Cmsg-f:1797706832552108831…1/4
Unfortunately, I cannot meet at that time, but I am available after noon on that same day. It may be, however, that my
presence may not be necessary as Chad is the primary person you will need to talk to. I will check on Chad's schedule
tomorrow morning. Thanks
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
On Tue, Apr 23, 2024 at 2:28 PM Grant Ensign <[e-mail]> wrote:
Thank you, Susan.
Unfortunately, that time will not work for us. Would next Tuesday (April 30th) at 10:00 work for you? In the meantime, we
understand that a TRP with 16-hour operating hours will be supplied. Should we be seeing that soon?
Thanks.
—————
Grant Ensign
Clyde Companies
ENVIRONMENTAL SPECIALIST
O [phone]
C [phone]
WWW.CLYDEINC.COM
From: Susan Weisenberg <[e-mail]>
Sent: Tuesday, April 23, 2024 2:20:41 PM
To: Grant Ensign <[e-mail]>
Cc: Chad Gilgen <[e-mail]>; Jay Morris <[e-mail]>; Alan Humpherys <[e-mail]>
Subject: Re: Geneva Rock Product's TRP to the Mount Jordan Pit

Hello, I've talked to Chad and he stated that the soonest he will be available to have a google meet will be this Thursday the
25th at 2:30. Let me know if that will work for you and your staff. Thanks
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
On Mon, Apr 22, 2024 at 3:26 PM Grant Ensign <[e-mail]> wrote:
Susan,
Thank you for geng back to me. Yes, we'd love a meeng to get beer educated. Would this Thursday morning
work you you?
Thanks.
Clyde
Companies
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

4/29/24, 4:06 PM State of Utah Mail - Re: Geneva Rock Product's TRP to the Mount Jordan Pit
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-637704567062188545%7Cmsg-f:1797706832552108831…2/4
From: Susan Weisenberg <[e-mail]>
Sent: Friday, April 19, 2024 9:29 AM
To: Grant Ensign <[e-mail]>
Cc: Chad Gilgen <[e-mail]>; Jay Morris <[e-mail]>; Alan Humpherys
<[e-mail]>
Subject: Re: Geneva Rock Product's TRP to the Mount Jordan Pit

Hello Grant, I wanted to provide at least a partial explanation for why modeling was required for the requested 24-hour
batch plant operation. I will forward your specific modeling questions to management.
Sites that have a pre-existing Approval Order, have been modeled with overall emission limits. When operating temporary
equipment at a facility with an existing AO, the relocation letter will try to have the relocated equipment operating with the
same established production/hourly and other permitted limits so that the relocation operation does not cause an increase
in the overall established Potential to Emit emissions.
In most cases, temporary relocations with equipment that matches up with the permitted equipment are pretty easy to
process in that the DAQ just requires that the production/operation restrictions are not exceeded for the applicable 12-
month rolling period. In this case - no batch plant equipment has been permitted at the Mount Jordan Pit. I believe that the
DAQ management is willing to grant the relocation for the UDOT required batch plant operation, however, there is a
concern that the 24-hour operation may be enough of an emissions increase that it warranted a modeled emission
estimate.
I have been told that the Geneva Rock Products' emission estimate must include the hot water heater and the generator
that will power the operation. Your specific modeling questions such as how ancillary support equipment is included, and
how the emissions from the permanent operations are accounted for, will need to be addressed by one of our engineering
or modeling staff.
It might be useful to have a conference or google meet conversation to make sure that everyone is in agreement as to
how to proceed at this point. I can try to coordinate a time with you, Chad, and Alan Humpherys. Let me know what dates
may work for you. I believe that Chad will be busy the first three days of next week but may be available after that time.
Thanks
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
On Fri, Apr 19, 2024 at 8:46 AM Grant Ensign <[e-mail]> wrote:
Thanks, Susan!
To make sure I understand correctly, the 24-hour operaon day cannot be granted since the mobile plant is moving
to a site that already has a permanent AO? Do you mind explaining further? That permanent AO doesn't have
hourly operaon restricons in it so I'm a lile confused as to why the mobile plant would be restricted in that way.
Also, the modeling is requested ONLY for the mobile equipment on the TRP and not for ALL the equipment on the
TRP and full AO, right?
Thanks.
Grant Ensign
ENVIRONMENTAL SPECIALIST
O [phone] 
C [phone]
WWW.CLYDEINC.COM

4/29/24, 4:06 PM State of Utah Mail - Re: Geneva Rock Product's TRP to the Mount Jordan Pit
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-637704567062188545%7Cmsg-f:1797706832552108831…3/4
From: Susan Weisenberg <[e-mail]>
Sent: Thursday, April 18, 2024 10:03 AM
To: Grant Ensign <[e-mail]>
Cc: Chad Gilgen <[e-mail]>
Subject: Geneva Rock Product's TRP to the Mount Jordan Pit

Hello, as per our telephone conversation this morning, I can issue a relocation authorization for this batch plant and
supporting equipment at the Mount Jordan facility, if the operation stays within the standard 16-hour limit. If UDOT
requires a 24-hour production day then modeling will be be required as per DAQE-AN110420003-21 condition II.B.3.c
which states:
The owner/operator shall only operate between 6:00 AM and 10:00 PM each day. The hours of operation may be
altered upon approval of the Director; however, any request for a change in these hours shall include modeling
showing that all NAAQS are met.
In order for Jay/Bryce to grant the request to operate outside of these hours, Geneva is going to need to submit
modeling for the following equipment to show the NAAQs are met.
1
Equipment Type Mobile Concrete Batch Plant
Serial or ID# 73-2038
Design Capacity 125 CY/hr
2
Equipment Type Diesel Hot Water Heater
Make/Model Natco
Design Capacity 5 MMBTU
3
Equipment Type Diesel Generator
Make/Model CAT
Design Capacity 525 kW
Also, as discussed, if you require having the plant start at 5:00 am, rather than the stipulated 6:00 am, please request
that change. The earlier startup hour may be easier to grant for only the summer months during daylight savings when
there are additional daylight hours. Thanks. Let me know if you have any questions.
Susan Weisenberg,
Environmental Scientist
Office: 385-306-6512
4/29/24, 4:06 PM State of Utah Mail - Re: Geneva Rock Product's TRP to the Mount Jordan Pit
https://mail.google.com/mail/u/0/?ik=bffac613d3&view=pt&search=all&permthid=thread-a:r-637704567062188545%7Cmsg-f:1797706832552108831…4/4