DAQ-2024-004243

Yr*gntg*r Hunter Plant
1000 South Highway l0
P.O. Box 569
Castle Dale, UT 84513
January 4,2024
Mr. Bryce Bird, Director
Utah Department of Environmental Quality
Division of Air Quality
150 North 1950 West
P.O. Box 144820
salt Lake city, uT 84114-4820 DIVI::;ION OF AIR O!lALITY
RE:PacifiCorp Hunter Power Plant - Annual Mercury Emission Rate Compliance
Report for period Beginning January 1,2023 and ending December 31,2023 (Title
V Permit #1500101004)
Dear Mr. Bryce Bird:
Pursuant to Conditions II.B.2.k and II.B.3.i of the above referenced Title V Permit and in
accordance with State Rule R307-424-4,this Mercury Emission Rate Compliance Report is
hereby submitted by the Hunter Power Plant. This report covers the period from January I,2023
through December 31,2023. All affected units were in compliance with the 6.5x10-7 lbs/MMBtu
limits established. Please refer to the enclosed summary of mercury emissions.
I am authoizedto make this submission on behalf of the owners and operators of the affected
source or affected units for which the submission is made. I certifu 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 certifu 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.
Should yo;r have any questions regarding this information, please contact Jay Howard, Senior
Environrfental Analyst, Hunter Power Plant, at (a35) 748-6519.
I
",^^^/:.. 1 . !Since/fly,
/\t-/.s i
Managing Director Hunter & Huntington Plants
Responsible Official
Enclosures: Hunter Plant Mercury Emissions Summary
cc: Tom Wiscomb denclosures
REVIEWED
Initials JBR Date 1/25/24
Comp Status Meets
File # 10237 Blue 2
per reg
Hunter Plant Mercury Emission Rate Assessment
January 1,2023 to December 31,2023
LEE Emission Data are presented below, for use after the LEE effective dates of each unit.
He Emission Based on Data Available Based on Data Available
lb Hg/MMbtu
emission factor from
EPA MCthOd 3OB
testing
Scientific notation ol
lb Hg/MMbtu
emission factor from
EPA Method 308
testing
MMBtu
Total Hg lbs
calculated by
Method 30B
emission Factor
Total Ounces
calculated by Method
30B emission Factor
Date Range Hunter I
UU2023 - 1/3/23 0.12 x l0 '1.20E-08 202,411 0.002 0.039
U4t23 - tv28l23 0_3 x t0-'3.00E-08 t6,187,211 0.486 7.770
nt29t23 - t2/31t23 0.1 x l0 L00E-09 t,073,214 0.001 0.017
Date Range Hunter 2
U0u2023 - tt/28t23 0-35 X l0-7 3.50E-08 16,044,648 0.562 8.985
I 1 t29 t2023 - t2/3 1 t2023 0.17 x l0-7 t.70E-08 690, r 83 0.024 0.387
Date Range Hunter 3
t/0v2023 - 1112812023 0.33 X t0-7 3.30E-08 I 2,986,9 I 0 0.429 6.857
t1t29/23 - 12t31t23 0.54 X l0-'5.40E-08 756,146 0.025 0.399
2023 Mercury emissions (total)
Ounces MMBtu lb/MMBtu (scietrtilic
trotation)
Ib/MMBTU
(average annual Hg
emission rate)
Hunter Unit I 7.8 17,462,835 2.80E-08 0. t20 x l0 -7
Hunter Unit 2 9.4 16,734,831 3.s0E-08 0.ll8x l0-7
Hunter Unit 3 7.3 13,743,056 3.30E-08 0.339 X l0-7
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