DAQ-2024-004491

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UTAH DEPARI'MENT OF
ENVIRONMENTAL QUALITY
Huntington Power Plant
8 miles west of Huntington, Utah on Hwy. 31
P.O. Box 680
Huntington, Utah 84528
J Al'l i
DIVISION OF AIR QUALITY
January 22,2024
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 841144820
RE: PacifiCorp, Huntington Power Plant - Units I & 2 SO2 and NOx PAL Emissions - Semi-
annual Report for period ending December 31,2023. (Title V Permit #1501001005)
Dear Mr. Bird:
Pursuant to Condition ll.B.1.g of the Title V Operating Permit and 40 CFR Subpar|52.21(aa)(14) this
plant-wide applicability limit (PAL) semi-annual report is hereby submitted by the Huntington Power Plant.
This report covers the period from July 1,2023, thru December 31 , 2023. During this period, the
Huntington Plant has been in compliance with the PAL for SO2 of 3,105 tons per year and the PAL for
NOx of 7,971 tons per year, based upon a 12-month rolling total for the entire Huntington Plant from all
point and fugitive emission sources.
Title V PeTmit Condition 11.B.1.q.3 Reportinq:
ln addition to the reporting requirement described in Provision 1.S.2 of this permit, the permittee
shall comply with 40 CFR Subpart52.21(aa)(14), Reporting and notification requirements for
PALs.
40 GFR Subpart 52.21(aaXl4)(i) Semi-annual report:
(a) - PacifiCorp, Huntington Power Plant, Title V Permit No. 1501001005
(b) - See enclosed sheet entitled "PacifiCorp - Huntington Power Plant - SO2 and NOx 12-
Month Rolling Total PAL Emissions - 40 CFR $52.21(aa)(14XiXb)'.
o All data used to calculate the monthly SO2 and NOx emission totals are at the facility and
available for review. SO2 and NOx twelve month rolling total emissions were calculated
using:
REVIEWED
Initials JBR Date 2/6/2024
Comp Status Meets
File # 10238 Blue 2
limits below allowed.
-Units 1 & 2 main boiler stacks - July 1, 2023, thru December 31 , 2023. SO2 and
NOx tons per month values are the values reported to the EPA's Acid Rain Emissions
database (permit condition 11.B.1.9.1 (a)).
-Units 1 & 2 emergency diesel-fired generators and the emergency fire pump engine
emissions were calculated by multiplying the appropriate SO2 and NOx emission factors
from EPA's AP42 and logged hours of operation (permit condition 11.8.1.9.1(b)).
-Research Farm Pump Engine emissions were calculated by multiplying the appropriate
SO2 and NOx Tier lV emission factors and logged hours of operation (permit condition
11.B.1.s.1(c)).
(c) No emission units (that would affect the PAL) were added or modified during the reporting
period.
(d) See enclosed sheet entitled "PacifiCorp - Huntington Plant CEMS deviations and
malfunctions - 40 CFR $52.21(aa)(14)(i)(e)". The monitor deviations or malfunctions
(excluding time associated with zero and span calibration checks) are listed. Consequently,
there were infrequent SO2 or NOx emission data that were required to be substituted in
accordance with 40 CFR Part 75 requirements.
(e) There were no shutdowns of any applicable monitoring system during boiler operation during
the reporting period.
(0 This letter is the signed statement and certification of the report by the responsible official.
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 certify under penalty of law that I have personally
examined, and am familiar with, the statements and information submitted in this document and all its
attachments. Based on my inquiry of those individuals with primary responsibility for obtaining the
information, I certify that the statements and information are to the best of my knowledge and belief 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.
have any questions regarding this information, please contact Terry Guthrie, Hunter and
Plant Environmental Manager at (435) 6874334 or me at (435) 6874211.
Managing Director Hunter and Huntington Plants
Responsible Official
Enclosures: (1) PacifiCorp - Huntington Power Plant - SO2 and NOx 12-Month Rolling Total PAL
Emissions - 40 CFR 952.21(aa)(14)(iXb)
(2) PacifiCorp - Huntington Plant CEMS deviations and malfunctions - 40 CFR
s2.21(aa)(14)(i)(e)
cc: Josh Sewell- NTO, Wenclosures
Scarlet Jackson - NTO, Menclosures
Russ \Mllson - Huntington Plant, Wenclosures
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