DAQ-2024-004255

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
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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-007-24
Site ID 10327 (B4)

Jon A. Finlinson
Intermountain Power Service Corporation
850 West Brush Wellman Road
Delta, Utah 84624

Dear Mr. Finlinson:

Re: Intermountain Power Service Corporation – Intermountain Generating Station (IGS) Unit 1
Boiler Stack – Protocol Review and Test Date Confirmation – Millard County

The source testing protocol for PM and HCl emissions compliance testing of the Intermountain
Power Service Corporation IGS Unit 1 boiler stack dated November 16, 2023, has been reviewed
and found acceptable. The agreed upon test date is January 9-10, 2024.

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 signed by a responsible official
certifying 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 Executive Secretary.

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 á Û Ù Û Ý
DAQC-007-24
Page 2

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

Sincerely,

Robert Sirrine, Environmental Scientist
Division of Air Quality

RS:rh

cc: Central Utah Public Health Department

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