DAQ-2025-002089

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Huntington Power Plant
8 miles west of Huntington, Utah on Hwy. 3l
P.O. Box 680
Huntington, Utah 84528
March24,2O25
Mr. Bryce Bird, Director
Utah Department of Environmental Quality
Division of Air Quality
195 North '1950 West
P.O. Box 144820
Salt Lake City, UT U1144820
RE: Outage Notlficatlon, Unit 1, Huntlngton Power Plant (Tltle V Permlt #1501001006)
Dear Mr. Bird:
As required by ll.B.1.f.3c of the Huntington Plant Title V operating permit, the purpose of this letter is to inform you of
a maintenance outage at the Huntington Plant. Boiler Unit 1 was taken offline at 1 2:05 AM on Saturday, March 15,
2025, to make boiler condenser repairs. The maintenance was complete, and the unit was back online with the
completion of start-up parameters achieved at 2:56 AM on Sunday, March 16, 2025.
Please see the aftached Maintenance Outage Report for detiails.
I am authorized to make this submission on behalf of the owners and operators of the affected source or affected
units for which the submission is made. I certiff under penalty of law that I have personally examined, and am familiar
with, the stiatements and information submifted in this document and all its attachments. Based on my inquiry of those
individuals with primary responsibility for obtaining the information, I certiff that the stiatements and information are to
the best of my knowledge and believe true, accurate, and complete. I am aware that there are significant penalties for
submitting false statements and information, or omitting statements and information, including the possibility of fine or
imprisonment.
For further information on this outage contact Terry Guthrie, Hunter & Huntington Plant Environmental Manager,
at 435-748-6059.
*'#rlu
DEPAI]TMENT OF
ENVIRONMENTAL QUALITY
APR - 8 2t25
DIVISION OF AIR OUALITY
Director, Hunter and Huntington Plants
Responsible Official
REVIEWED
Initials JBR Date 4/22/25
Comp Status Meets
File # 10238 Blue 2
Enclosures: Ul Maintenanc€ Outags Report - PaclfiCorp, Huntington Plant
oc: Terry Guthrie - Environmental Manager, Hunter and Huntington Plants
Scarlet Lewis - Environmental Services - NTO 210
Russ Willson - Huntington Plant Files w/enclosures
Maintenance Outage Reporq
Huntington Plant Boiler Unit #1 Short Outege -CondenrcrRopdrr Date:311512025
Date Tlme Dercrlodon
3n5t2025 2:23 ANI BFO Down-time
beginr
3ns/202s 2:18 AM Stopped producing elecricity
3lrsl202s 5:34 PM BFI Start-up beglns-
311512025 8:37 PM Started producing electricity
3/15/2025 9:53 PM <l0%oheat input from fuel oil
311512025 l1:17 PM 3 coal mills in service
3trctzas 2:56 AIVI Sbble o,peration (<l0o/o heot input ftom oil, 3 coal rrrills in sc,l:nice, baghous€ tcmps
>200 degrees)Strrt-up eadr
BFO - Boiler Fire Out
BFI - Boiler Fire In
All times shown are in Mountain Standard Time.
Boller Operating Hours -
UNIT #
Outage Start Date:
Outage End Date:
Outage Description:
BollerOpr. Hrs.
Start Date S
311512025 17:34 311512025 23:59 6.42 6.12