DAQ-2025-002587

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. 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-482-25
Site IDs: 6950, 15738, 101698, 101699,
101703, 101705, 101817 (B4)

Ryan Sokolowski
SM Energy
1700 Lincoln Street, Suite 3200
Denver, CO 80203

Dear Mr. Sokolowski:

Re: SM Energy Company – Butcher Butte Pad 22-4D2-23, Butcher Butte Pad 27-4D-23, Tuf
19-3D-21 Pad, 25-1B-11 Pad, Thacker 15-4B-23, XCL 32-4B-23 (Gilbert Pad), Zubiate III
22-4C-22 – Protocol Review and Test Date Confirmation – Duchesne County

The testing protocols for one (1) Caterpillar 3508B at Butcher Butte Pad 22-4D2-23, one (1)
Waukesha 5794GSI at Butcher Butte Pad 27-4D-23, one (1) Waukesha 5794GSI at Tuf 19-3D-21
Pad, one (1) Waukesha 5794GSI at 25-1B-11 Pad, one (1) CAT 3516J and one (1) Waukesha
F3524GSI at Thacker 15-4B-23, one (1) Waukesha L7044GSI at XCL 32-4B-23 (Gilbert Pad),
and one (1) Waukesha L5794GSI at Zubiate III 22-4C-22 located in Duchesne County, Utah,
received May 16, 2025, have been reviewed and found acceptable. The agreed upon test dates will
be conducted the week of June 23, 2025.

Acceptance of a protocol does not relieve the owner/operator and the testing contractor from strict
adherence to all applicable EPA methods, Utah Division of Air Quality (DAQ) policies, Utah Air
Quality Rules (UAQR), and methods approved by the director. Any deviation from EPA methods,
DAQ policies, UAQR, and methods approved by the director must be addressed separately and
express written consent given prior to commencement of testing.

The DAQ requires that all test reports include a statement that:

A. Testing was conducted while the source was operating at the rate and/or conditions
specified in the applicable approval order, operating permit, or federal regulation.

B. During testing, the source combusted fuels, used raw materials, and maintained
process conditions representative of normal operations, and operated under such
other relevant conditions specified by the director.

6 Û Ú Û Ù Û Þ
DAQC-482-25
Page 2

C. Based on information and belief formed after reasonable inquiry, the statements
and information contained in the report are true, accurate, and complete.

If you have any questions, call me at [phone] or e-mail me at [e-mail].

Sincerely,

Paul Bushman, Environmental Scientist
Division of Air Quality

PB:rh

cc: TriCounty Health Department
Applicable District Engineer