DAQ-2025-001089

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-204-25
Site ID 16019 (B1)

Chintan K. Amin
CRH Americas, Inc.
900 Ashwood Parkway, Suite 600
Atlanta, GA 30338

Dear Mr. Amin:

Re: Tooele Pozzolans Processing Plant – 1345 K Avenue, Tooele, UT 84074
Notice pursuant to Utah Stat. 19-7-109

The Utah Division of Air Quality (DAQ) has reviewed your self-disclosure notification and
request for full enforcement mitigation under the Environmental Self-Evaluation Act, Utah Code
§§ 19-7-101 through 19-7-109 (the Act). The request was received via email on January 7, 2025,
and a hard copy on January 10, 2025, following an internal evaluation conducted at the Ash Grove
Cement Company (AGC) Tooele Pozzolans Processing Plant (facility) which was operating under
DAQ Approval Order (AO) DAQE-AN160190001-20. Potential non-compliance with AO
condition I.3 for the presence of unpermitted equipment was confirmed on December 18, 2024, as
part of a voluntary inspection conducted by AGC following acquisition of the facility on
September 3, 2024. It was also noted that this equipment was listed in a Notice of Intent (NOI)
submitted by the previous owners on August 8, 2024.

Following this discovery, AGC conducted a full self-evaluation under the Act and submitted the
aforementioned notification. The notification explained that the source was addressing the
non-compliance through working with the DAQ to process the NOI into a new AO accounting for
the additional equipment. This equipment was accounted for in AO DAQE-AN160190002-25
which was issued on January 15, 2025. The violation was fully remediated within 60 days of
discovery. Recurrence has been addressed through AGC’s reinforcement of environmental
compliance training for facility personnel.

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DAQC-204-25
Page 2

DAQ “shall waive civil penalties for an instance of noncompliance with an environmental law or
requirement” if the following conditions are met: (1) the regulated entity discovers noncompliance
through an environmental self-evaluation; (2) the regulated entity voluntarily discloses
noncompliance to DAQ in writing within 21 days of violations’ discovery; (3) the regulated entity
corrects the violation within 60 days after the discovery or within a reasonable amount of time; and
(4) the regulated entity submits to DAQ a written outline of reasonable steps it will take to prevent
recurrence. Utah Code § 19-7-109(2). AGC’s self-evaluation and disclosure submitted to DAQ
on January 7, 2025, fully satisfies each of the statutory elements. Additionally, any circumstances
that would prevent DAQ from waiving civil penalties as listed in Subsections 19-7-109(3) and (4)
of the Utah Code are not present in this case. Based on this voluntary self-disclosure notification,
the DAQ concurs with AGC’s request to waive all compliance actions and any potential penalties
associated with this instance of non-compliance.

If you have any questions regarding this letter, please contact me at [phone] or
[e-mail].

Sincerely,

Chad Gilgen, Manager
Minor Source Compliance Section

CG:jl

Enclosure: Tooele Pozzolans Processing Plant – 1345 K Avenue, Tooele, UT 84074
Notice pursuant to Utah Stat. 19-7-109

cc: Marina Thomas, Utah Attorney General’s Office