DAQ-2025-000524

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-090-25
Site IDs: 8335, 15697, 100547, 101704,
101763, 101861, 101862 (B4)

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

Dear Mr. Sokolowski:

Re: SM Energy Company – Butcher Butte Pad 22-3C-22, Butcher Butte Pad 32-4D-22, Against the Wind
2-2B-32, Brotherson 23-3A-23, Denning 29-4A-23, Anderson BB 19-45-22 East, Anderson BB
19-4C-22 North – Protocol Review and Test Date Confirmation – Duchesne County

The testing protocol for one (1) CAT 3516B at Butcher Butte Pad 22-3C-22, two (2) CAT G3516J at
Butcher Butte Pad 32-4D-22, two (2) Cummins KTA19GC at Against the Wind 2-2B-32, one (1) CAT
G3516J at Brotherson 23-3A-23, one (1) Caterpillar 3508B and one (1) Waukesha 5794GSI at Denning
29-4A-23, one (1) Waukesha L5794GSI at Anderson BB 19-45-22 East, and one (1) Waukesha L5794GSI
at Anderson BB 19-4C-22 North located in Duchesne County, Utah, received January 24, 2025, has been
reviewed and found acceptable. The agreed upon test dates will be conducted the week of February 24,
2025, and the week of March 10, 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.

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

+ 2 / 6 Û á Û Ù Û Þ
DAQC-090-25
Page 2

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

Sincerely,

Kyle Greenberg, Environmental Scientist
Division of Air Quality

KG:rh

cc: TriCounty Health Department
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