DAQ-2025-000111

YT*SJflSgRP Hunter Plant
1000 South Highway l0
P.O. Box 569
Castle Dale, UT 84513
November 7,2024
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 84114-4820
RE: Quarterly Compliance Report 40 CFR 63 SubPart UUUUU,
Hunter Power Plant (Title V Permit #1500101004)
Dear Mr. Bird:
DEPAHTMENT OF
ENVIBONMENTAL QUALITY
NO\/ 1 B 2024
DMSION OF AIR OUALTTY
The reporting requirements for periodic compliance reports changed beginning on January l,
2024. $63.10031(g) requires MATS affected sources to begin submitting quarterly compliance
reports beginning with the first calendar quarter of 2024 using applicable data elements found in
Appendix E to Subpart UUUUU. Appendix E section 1.0 states that the "applicable data
elements in sections 2 through l3 of this appendix must be reported in the quarterly compliance
reports required under $63.10031(g), in an .xml format prescribed by the Administrator." The
existing Emissions Collection And Monitoring Plan System (ECMPS) 1.0 application was to be
upgraded to ECMPS 2.0, a web-based platform and was to include the new quarterly MATS
reporting requirements. Because of the uncertainty caused by the delay of ECMPS 2.0 and the
lack of a .xml reporting schema provided by EPA for the reporting of MATS data, PacifiCorp
contacted EPA Region 8 via telephone on February 29,2024 to ask for guidance. Based on this,
and a subsequent discussion on March 4,2024 between PacifiCorp and EPA Region 8
representatives, it was suggested that PacifiCorp continue to submit compliance data in a file
format that is most suitable for demonstrating compliance with the MATS rule and applicable
elements of appendix E to Subpart UUUUU until further guidance and/or reporting schema are
provided by EPA. PacifiCorp was directed to discuss the reporting format and filetype with
Department of Environmental Quality contacts for each affected source and has done so. Please
reference PacifiCorp's March 26,2024letter regarding this subject.
Until further guidance or reporting schema are provided by EPA, PacifiCorp plans to continue to
submit all compliance data required by the MATS rule in accordance with $63.10031(g)
beginning with a quarterly compliance report for the first quarter,2024 in .pdf format.
PacifiCorp will submit .xml files, where applicable, generated using the Electronic Reporting
Tool to ECMPS 1.0, with the report. The Hunter Plant will continue to comply with all MATS
related requirements for each of its affected sources.
I am authorizedto 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
REVIEWED
Initials JBR Date 1/9/25
Comp Status Meets
File # 10237 Blue 2
three units info in comp
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 certiff 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 you have any questions regarding this information, please contact Terry Guthrie,
Environmental Manager, Hunter & Huntington Power Plants at [phone] or me at (435)
748-6211.
Managing Director Hunter & Huntinglon Power Plants
Responsible Official
Enclosures: Mercury and Air Toxics Semiannual Compliance Report with attachments A thru C - Unit I
Mercury and Air Toxics Semiannual Compliance Report with attachments A thru C - Unit 2
Mercury and Air Toxics Semiannual Compliance Report with attachments A thru C - Unit 3
Eve Paulson - 310 NTO
Terry Guthrie - Hunter Power Plant
l?ncrFrEoRP
H u nter Power PIa nt
MATS Quarterly Compliance Report Unit 1
40 cFR 63.10031(e)
July 1, 2024 - September 30,2024
-i TffiDFPARTMENT oF
e r.r"v i iO t 1 ttt E NTAL O U ALIT:r
DIVISION OF AIR OUALITY
Section 1.0 - Unit I Report Summary
Name and address of the affected source
Hunter Power Plant, 1000 S. Highway l0
Castle Dale Utah
P.O. Box 569
Castle Dale, Utah 84528
Identifrcation of each hazardous air pollutant monitored at the affected source
I. Non-Mercury HAPS metals using a quarterly filterable particulate matter (PM) stack
test as a surrogate to demonstrate compliance. On April 6, 2018 the Utah Department
of Environmental Quality - Division of Air Quality agreed that the Hunter Plant Unit I
met the requirements to qualifu as a low emitting EGU (LEE) unit. The Hunter Plant
submiued a summary table showing three years of quarterly test data. Each particulate
matter (PM) testing result was below one-half of the 0.030 lb/MMBtu limit or 0.015
lb/MMBtu as required by the subpart.
II. Acid gases using sulfur dioxide (SOz) as a surrogate to demonstrate compliance by an
SOz continuous emissions monitoring system (CEMS).
Ill. Mercury (Hg), compliance demonstrated by an annual EPA Method 30B sorbent trap
test to re-confirm LEE status.
A brief description of the process unit
I. Hunter Unit I is an Electric Utility Steam Generating Unit, designed as a dry bottom
tangentially-fired boiler, designed by Combustion Engineering.
i. Rated Heat Input Capacity of 4,750 MMBtu/hr.
ii. The unit is equipped with the following add-on controls:
L Pulse Jet Fabric Filter (baghouse)
2. Wet Lime Flue Gas Desulfurization (wet scrubber)
3. Low-NOx burner technology, with closed-coupled over-fire air
iii. Fuels used are sub-bituminous coal using #2 fueloil for startup fuel when
needed.
IL Unit Category
i. Unit I is an existing coal-fired unit combusting non-low rank virgin coal
demonstrating compliance with the emission limits found in Table 2 to Subpart
UUUUU of Part 63
IIl. The emission and operating parameter limitations
i. Filterable PM quarterly stack testing demonstrating compliance with a 0.030
lb/Ir4MBtu emission limit. The unit has demonstrated and achieved low
emitting EGU (LEE) status.
ii. SOz CEMS as a surogate for acid gases reporting hourly averages in units of
lb/MMBtu demonstrating compliance with a 30 boiler-operating-day average
limit of 0.20 lb/MMBtu.
iii. Hg annual EPA Method 30B sorbent trap test reporting hourly averages in
units of lb/TBtu demonstrating compliance with a 30 boiler-operating-day
average of 1.2 lb/TBtu.
A description of any changes in CMS. processes. or controls since the last reporting
period
No changes occurred during the reporting period that would affect compliance to MATS.
Recent perfirnnance test results
Table 1-l: Unit I Filterable Particulate Matter LEE Test Results Summary
Test ID Test Date
Average
PM rate
(lb/mmBtu)
MATS
PM
Limit*
Average
PM
(lb/1vIW-hr)
MATS
PM
Limit*
Unit Status
2024 0211412024 0.003 0.030 0.03 0.30
LEE
Achieved in
2018.
Maintained
with
21t412024
LEE test
*Low Emitter Limits are 0.015 Ib/MM-BTU and 0.15 lbs/IvIW-HR
Table 1-2: Unit I Mercury LEE Test Results Summara
Test ID Test Date
Hg rate
(lb/TBtu)
MATS
Hg
Threshold
Unit Status
2023 1U28t2023 0.01 0.12
LEE Achieved.
Maintained with
1112812023 LEE test
Section 2.0 - Unit I MATS Compliance Report Root Data Elements
Table 2-l: Root Data Elements
2.1 Facilitv ORIS Code 6165
2.2 Facilitv Name Hunter
2.3 Faciliw Resistrv Identifier (ORISPL)8069
2.4 Title 40 Part 63
2.5 Aoolicable Suboart UUUUU
2.6 Calendar Year 2024
2.7 Calendar Quarter 3'd Ouarter
2.8 Submission Comment (ootional)See cover letter
Section 3.0 - Unit I Performance Stack Test Summary
For applicable elements of Appendix E Section 3.1-3.14, see stack testing reports submitted for the
quarter. Stack testing data is being provided in both .xml and .pdf formats.
Section 4.0 - Operating Limit Data (PM, CPMS, only)
No PM CPMS on unit. Section not applicable.
Section 5.0 - Unit I Performance Test Run Data
For applicable elements of Appendix E Section 5.1-5.8, see stack testing reports submitted forthe quarter,
Stack testing data is being provided in both .xml and .pdf formats.
Section 6.0 - Unit I Conversion Parameters
For applicable elements of Appendix E Section 6.1-6.3, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 7 .0 - Unit I Quality Assurance Parameters
For applicable elements of Appendix E Section 7.1-7.3, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 8.0 - Averaging Group
Unit is not part of an averaging group.
Section 9.0 - Unit I Compliance Averages
Please see Aftachment A-l which includes 30-boiler-operating-day average data for sulfur dioxide.
Section 10.0 - Unit I Information
Section 1 1.0 - Unit I Fuel Usage Information
Table 11-1 Quarterly Fuel Usage Information
4
Table 10-1: Unit Information
Section Data Element Plant Data
r0.t Unit ID;Unit I
t0.2
Date of Last Tune-upl and
Burner Tio Insoection June 6. 2024: March 20. 2024
10.3 Emergency Bypass Information.No emergency bvpass occurred during quarter
Month #2 Fuel Oil Burned (gallons)Sub-Bituminous Coal Burned (tons)
July 670 82,229
August 555 77,024
September 957 72,800
Total 2,182 232,053
Note: No new fuel types were combusted during the reporting period.
Section 12.0 and 13.0 - Unit I Malfunction, Deviations, and Monitoring
Downtime Information
Table 12-l Monitoring Equipment Manufacturer and Model number
Pollutant Manufacturer Model Number
Sulfur Dioxide Thermo 43iQ
Carbon Dioxide
lCOz)r
Thermo 4roiQ
Table l2-2: Most Recent CMS Certification or Audit
Ul CBMS Analyzer Latest RATA Date Latest Linearity Date
Carbon Dioxide (COz)t0n9t2023 8t19t2024
Sulfur Dioxide (SOz)1011912023 811912024
Table l2-3: Unit Operating Time During the Reporting Period
Ul Operating Period Hours of Unit Operation
3'd Quarter,2024 2208
Table 12-4: Excess Emission Summary
I The COz analyzer is used as a diluent for calculating heat input-based emission limits
5
Ul Excess Emissions
Summala
PM SOz Hg
Total Hours of Exceedance 0 0 0
Exceedance percent of total
operating hours 0.0 0.0%0.0
Hours during startup and
shutdown 0 0 0
Hours during control
equipment problems 0 0 0
Hours during process hours 0 0 0
Hours during other know
problems 0 0 0
Hours during unknown causes 0 0 0
Emission Limit 0.030 0.20 1.2
Emission Limitation Unit lbiMMBtu lb/MMBtu LblTBtu
Em ission lim itation averaging
period
Quarterly Stack
Testing
30 boiler
operating-day
30 boiler
operating-day
Table l2-5: CMS performance summary
Ul CMS Performance Summary SOz
Downtime percent of total operating hours 1.03 %
Total hour of CMS downtime 22.82
Hours due to monitoring equipment malfunctions 0
Hours due to non-monitoring equipment malfunctions 0
Hours due to quality assurance/quality control calibrations 4.97
Hours due to other known causes r 7.85
Hours due to other unknown causes 0
For applicable elements of Appendix E Sections 12.1-12.3 and l3.l-13.5, see Attachments B and C.
No deviations from rule requirements occurred other than those stated on this report and attachments.
Sections 14.0 through 30.0 - Reference Method Data
For applicable elements of Appendix E Sections l4-30, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 31.0 - Other Information for Each Test or Test Series
In accordance with section 31.0 and to provide reporting transparency, all stack testing data
relevant to compliance with Subpart UUUUU of Part 63 is being submitted in pdf format with
this quarterly compliance report.
Report Certification
accuracy ofthe report:Responsible,
Laren Huntsman
Responsible Official
Managing Director - Hunter Power Plant
November 07. 2024
Attachments:
Attachment A: MATS 30-Day Rolling SOz lb/]vlMBtu Average Data
Attachment B: SOz Monitor Downtime Events Report
Attachment C: Excess Emissions Report
Attachment A
MATS 30-Day Rol.ting SO2 tb/MMBtu Average Data
MATS 30 Day Rolling Average
Plant: HUNTER PI-ANT
Report Period : 07 I 0L I 2024 Through 09 I 30 I 2024
Source: UNIT1 Parameter: SO2RMATS
Date 1-Day Avg 3O-Day Avg Total
Operating
Valid Operating
Houns
Invalid
Operatang
Monitor
Availability
7t'12024 o.o77 0.083 720 718 2 99.7o/o
7t2t2024 o.o74 0.082 720 714 2 99.7o/o
7t3t2024 0.061 0.081 720 718 2 99.7o/o
7t4t2024 0.074 0.081 720 718 2 99.7o/o
7t5t2024 0.074 0.08 720 718 2 99.70/
7t6t2024 0.067 0.08 720 718 2 99.7o/o
7t712024 0.075 0.08 720 718 2 99.7Yo
7t8t2024 0.069 0.08 720 718 2 99.7Yo
7t912024 0.057 0.079 720 718 2 99.7o/o
7t10t2024 0.07 0.078 720 7',18 2 99.7o/o
7t11t2024 0.07 o.o77 720 718 2 99.7o/o
7t1212024 0.065 0.077 720 718 2 99.7o/o
7113t2024 0.061 0.076 720 7',t8 2 99.7o/o
7t14t2024 0.069 0.076 720 718 2 99.7Yo
7t15t2024 0.057 0.075 720 718 2 99.7o/o
7t16t2024 0.059 o.o74 720 718 2 99.7o/o
7 t17 t2024 0.065 0.073 720 718 2 99.7o/o
7t18t2024 0.066 o.072 720 7',tg 2 99.7o/o
7t19t2024 0.069 o.072 720 718 2 99.7o/o
7t20t2024 0.061 0.071 720 7',t$2 99.7o/"
7t21t2024 0.077 0.07 720 718 2 99.7%
7t22t2024 0.076 0.07 720 718 2 99.7%
7t23t2024 0.076 0.07 720 714 2 99.7o/"
7t24t2024 0.07 0.07 720 718 2 99.7o/o
7t2512024 0.071 0.07 720 718 2 99.7Yo
7t26t2024 0.07 0.07 720 7',t$2 99.7o/o
7t27t2024 0.068 0.069 720 720 0 100.0%
7t28t2024 0.065 0.069 720 720 0 100.0%
7t29t2024 0.072 0.069 720 720 0 100.0%
7t30t2024 0.057 0.068 720 718 2 99.7o/o
7t31t2024 0.066 0.068 720 715 5 99.3%
8t'12024 0.079 0.068 720 713 7 99.0%
8t2t2024 0.081 0.068 720 713 7 99.0%
8t3t2024 0.075 0.068 720 713 7 99.0%
8t4t2024 o.o77 0.069 720 713 7 99.0%
8t5t2024 0.07 0.069 720 708 12 98.3o/o
81612024 0.073 0.069 720 708 12 98.3%
8t7t2024 0.08 0.069 720 708 12 98.3%
8t8t2024 0.079 0.07 720 708 12 98.3%
81912024 0.082 0.07 720 708 12 98.3%
Value = Offline Data
Valuer = AveraSe represents a building 30D Average
Value = Exceedance
Report Generated: Ll/O6124 73:23
Report Version 5.2
HTRDAHS04\\reportuser
MATS 30 Day Rolling Average
P|ant: HUNTER PI.ANT
Report Period : 07 I 0L I 2024 Throuqh 09 I 30 I 2024
Source: UNIT1 Parameter: SO2RMATS
811012024 o.o77 0.07 720 708 12 98.3%
811112024 0.078 0.071 720 708 12 98.3%
4t12t2024 0.083 o.o72 720 707 13 98.2o/o
811312024 0.074 0.072 720 707 13 98.2%
811412024 0.081 0.073 720 707 '13 98.2%
8115t2024 o.097 o.o74 720 706 14 98.10/o
u16t2024 0.071 0.074 720 703 17 97.60/o
8t17t2024 0.073 o.o74 720 703 17 97.6%
8t18t2024 o.o77 0.075 720 703 17 97.60/"
8t19t2024 0.076 0.075 720 701 19 97.40/o
8t20t2024 0.076 0.075 720 701 19 97.4%"
8t21t2024 0.073 0.075 720 701 19 97.4o/o
8t22t2024 o.o72 0.075 720 701 19 97.4o/"
8t2312024 0.079 0.075 720 701 19 97.4o/o
8t24t2024 0.078 0.075 720 701 19 97.4o/.
8t25t2024 0.081 0.076 720 701 19 97.4o/o
8t26t2024 o.o77 0.076 720 701 '19 97.4o/"
8127t2024 0.08 0.076 720 701 19 97.4o/o
8128t2024 0.079 0.077 720 701 19 97.4%
812912024 0.08 o.o77 720 703 17 97.60/o
8t30t2024 0.08 0.078 720 706 14 98.1%
8t31t2024 0.08 0.078 720 708 12 98.3%
9t1t2024 0.08 0.078 720 708 12 98.3%
9t2t2024 0.078 0.078 720 708 12 98.3%
st3t2024 o-o77 0.078 720 708 12 98.3%
91412024 0.079 0.078 720 713 7 99.0%
915t2024 0.081 0.079 720 713 7 99.0%
9t6t2024 0.078 0.078 720 713 7 99.0%
9t7t2024 0.077 0.078 720 7',t3 7 99.0%
9t8t2024 0.075 0.078 720 713 7 99.0%
9t9t2024 0.07 0.078 720 713 7 99.0%
9t'tot2024 0.069 0.078 720 713 7 99.0%
911112024 0.076 o.077 720 714 6 99.2o/o
911212024 o.o74 o.077 720 714 6 99.2%
9t13t2024 0.076 0.077 720 714 6 99.20/o
9t14t2024 0.065 0.076 720 7 5 5 99.3%
9t1512024 0.082 o.077 720 7 I 2 99.70/o
911612024 0.082 o.o77 720 7 8 2 99.7o/o
9t17t2024 0.066 0.076 720 7 5 5 99.3%
9t18t2024 0.057 0.076 720 7',t6 4 99.40h
9t19t2024 0.081 0.076 720 716 4 99.4o/o
9t20t2024 0.077 0.076 720 7',16 4 99.4o/o
Value = Offline Data
Valuer = AveraSe represents a building 3OD Average
Value = Exceedance
Report Generated: l7106l24 L3:23
Report Version 5.2
HTRDAHS04\\reportuser
MATS 30 Day Rolling Average
P|ant: HUNTER PI.ANT
Repoft Period : 07 I 0t I 2024 Throuqh 09 I 30 I 2024
Source: UNIT1 Parameter: SO2RMATS
9121t2024 o.077 0.076 720 7',t6 4 99.4o/o
9t22t2024 0.071 0.076 720 7't6 4 99.4o/o
9t23t2024 o.o72 0.076 720 716 4 99.4o/"
9t24t2024 0.101 0.076 720 716 4 99.4%
912st2024 0.08 o.o77 720 716 4 99.4o/"
9t26t2024 0.08 o.077 720 716 4 99.4o/o
9t27t2024 0.079 0.077 720 716 4 99.4o/o
9t28t2024 o.077 0.076 720 716 4 99.4Yo
9t2912024 0.08 0.076 720 716 4 99.4o/o
9t30t2024 o.o71 0.076 720 716 4 99.4o/o
Value = Offline Data
valuet = Averate represents a buildinS 30D Average
Value = Exceedance
Report Generated: l1/06124 L3:23
Report Version 5.2
HTRDAHS04\\reportuse.
Attachment B
SO, Monitor Downtime Events Report
Downtime Events - Duration
Plant HUNTER PLANT
Report Period: 07 101 12024 00:00 Through 0913012024 23:59
Time Online Criteria: 1 minute(s)
Source:
Parameter:
lnterYal:
UNITl
S02RMATS
001H
lncident lD Start
Date/Time
End
Date/Time
Duration
(dd:hh:rnm)
Reason Cod€ - Descrlption
Action Code - Descrlotion
0713012O24 11:00 O7l3Ol2O24 12:59 0d - 2h - 0m 00 - Default
00 - (default)
071311202410:40 0713112O24 12:59 0d - 3h - 0m 00 - Default
00 - (default)
0810112024 08:00 0a10112024 09:59 0d - 2h - 0m 00 - Default
00 - (defautt)
OUOSI2O24O7:N 08/05/2024 11:59 0d - 5h - 0m 00 - Default
00 - (default)
0811212024 09:00 0a11212024 09:59 0d - th - 0m 00 - Default
00 - (default)
08/1512024 08:00 08/15f2024 08:59 0d - th - 0m 00 - Default
00 - (default)
08/16/2024 08:00 0811612024 08:59 0d - th - 0m 00 - Default
00 - (default)
08/16/2024 15:fi)OBI16D024 16:59 0d - 2h - 0m 00 - Default
00 - (default)
081191202408:N 08/'19/2024 09:59 0d - 2h - 0m 00 - Default
00 - (default)
10 o9t17t't2024 07:N 0911712024 09:59 0d-3h-0m @ -Default
00 - (default)
11 09/18/2024 00:00 09/18/2024 00:59 0d - th - 0m 00 - Default
00 - (dsfault)
NumbcrofEvont : 11
Total Duratlon: 0d - 23h - 0m
' lndicates duration incident could have additional data prior to the start date or following the end date.
Report Generated'. 11106124 13:32 Report Version 4.0 HTRDAHS04\reportuser 1of 1
Attachment C
Unit I Excess Emissions Report
PM Excess Emissions
0.030 lb/MMBtu (Quarterly Stack Testing)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No PM Excess Emissions occurred during the reporting period
No PM Malfunction occurred during the reporting period
SOz Excess Emissions
0.20 lb/MMBtu (30 Boiler Operating Day Average)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No SOz Excess Emissions occurred during the reporting period
SOz monitor equipment malfunctions noted in Attachment B.
Excess
Emission
Incident
Number
Magnitude
of Excess
Em issions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
lnvolved
Malfunction
Y/N Cause Corrective
Action
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
Hg Excess Emissions
1.2 lb/TBtu (30 Boiler Operating Day Average)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No Hg Excess Emissions occurred during the reporting period
Hg monitor equipment malfunctions noted in Attachment B.
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
PacIFIEORP
Hunter Power Plant
MATS Quarterly Compliance Report Unit 2
40 cFR 63.10031(e)
July L, 2024 - September 30,2024
Section 1.0 - Unit 2 Report Summary
Name and address of the affected source
Hunter Power Plant, 1000 S. Highway l0
Castle Dale Utah
P.O. Box 569
Castle Dale, Utah 84528
Identification of each hazardous air pollutant monitored at the affected source
I. Non-Mercury HAPS metals using a quarterly filterable particulate matter (PM) stack
test as a surrogate to demonstrate compliance. On June 6,2018 the Utah Department of
Environmental Quality - Division of Air Quality agreed that the Hunter Plant Unit 2
met the requirements to qualifu as a low emitting EGU (LEE) unit. The Hunter Plant
submitted a summary table showing three years of quarterly test data. Each particulate
matter (PM) testing result was below one-half of the 0.030 lb/MMBtu limit or 0.015
lb/MMBtu as required by the subpart.
II. Acid gases using sulfur dioxide (SOz) as a surrogate to demonstrate compliance by an
SOz continuous emissions monitoring system (CEMS).
III. Mercury (Hg), compliance demonstrated by an annual EPA Method 30B sorbent trap
test to re-confirm LEE status.
A brief description of the process unit
Hunter Unit2 is an Electric Utility Steam Generating Unit, designed as a dry bottom
tangentially-fired boiler, designed by Combustion Engineering and Wilcox.
i. Rated Heat Input Capacity of 4,750 MMBtu/hr.
ii. The unit is equipped with the following add-on controls:
l. Pulse Jet Fabric Filter (baghouse)
2. Wet Lime Glue Gas Desulfurization (wet scrubber)
3. Low-NOx burner technology, with separated over-fire air
iii. Fuels used are sub-bituminous coal using #2 fuel oil for startup fuel when
needed.
Unit Category
i. Unit 2 is an existing coal-fired unit combusting non-low rank virgin coal
demonstrating compliance with the emission limits found in Table 2 to Subpart
UUUUU of Part 63
The emission and operating parameter limitations
i. Filterable PM quarterly stack testing demonstrating compliance with a 0.030
lb/MMBtu emission limit. The unit has demonstrated and achieved low
emitting EGU (LEE) status.
I.
II.
III.
SOz CEMS as a surrogate for acid gases reporting hourly averages in units of
lb/MMBtu demonstrating compliance with a 30 boiler-operating-day average
limit of 0.20 lb/MMBtu.
Hg annual EPA Method 308 sorbent trap test reporting hourly averages in
units of lb/TBtu demonstrating compliance with a 30 boiler-operating-day
average of 1.2 lb/TBtu.
A description of any changes in CMS, processes. or controls since the last reporting
period
No changes occurred during the reporting period that would affect compliance to MATS.
Recent perfbrmance test results
ll.
I ll.
Table 1-l: Unit 2 Filterable Particulate Matter LEE Test Results Summary
Test ID Test Date
Average
PM rate
(lb/mmBtu)
MATS
PM
Limit*
Average
PM
(b/NIW-hr)
MATS
PM
Limit*
Unit Status
2024 0211312024 0.005 0.030 0.0s 0.30
LEE
Achieved in
2018.
Maintained
with
211312024
LEE test
tlow Emitter Limits are 0.01 5 |b/MM-BTU and 0.1 5 lbs/MW-HR
Table 1-2: Unit 2 Mercury LEE Test Results Summaty
Test ID Test Date
Hg rate
(lb/TBtu)
MATS
Hg
Threshold
Unit Status
2023 1U29/2023 0.01 0.12
LEE Achieved.
Maintained with
1112912023 LEE test
Section 2.0 - Unit 2 MATS Compliance Report Root Data Elements
Table 2-l: Root Data Elements
2.1 FaciliW ORIS Code 6165
2.2 Fac liw Name Hunter
2.3 Fac litv Resistrv Identifier (ORISPL)8069
2.4 Title 40 Part 63
2.5 Aoolicable Suboart UUUUU
2.6 Calendar Year 2024
2.7 Calendar Ouarter 3'd Ouarter
2.8 Subm ission Comment (ootional)See cover letter
Section 3.0 - Unit 2 Performance Stack Test Summary
For applicable elements of Appendix E Section 3.1-3.14, see stack testing reports submiued for the
quarter. Stack testing data is being provided in both .xml and .pdf formats.
Section 4.0 - Operating Limit Data (PM, CPMS, only)
No PM CPMS on unit. Section not applicable.
Section 5.0 - Unit 2 Performance Test Run Data
For applicable elements of Appendix E Section 5.1-5.8, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 6.0 - Unit 2 Conversion Parameters
For applicable elements of Appendix E Section 6.1-6.3, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 7 .0 - Unit 2 Quality Assurance Parameters
For applicable elements of Appendix E Section 7.1-7.3, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xmland .pdf formats.
Section 8.0 - Averaging Group
Unit is not part of an averaging group.
Section 9.0 - Unit 2 Compliance Averages
Please see Attachment A-l which includes 30-boiler-operating-day average data for sulfur dioxide.
Section 10.0 - Unit 2 Information
Section I 1.0 - Unit 2 Fuel Usage Information
Table 10-1: Unit Information
Section Data Element Plant Data
l0.l Unit ID Unit2
10.2
Date of Last Tune-up; Burner
Insoection Mav 26.2023:March 10. 2023
10.3 Emergency Bypass Information.No emersencv bvoass occurred durins quarter
Table 11-1 Quarterly Fuel Information
Note: No newfuel types were combusted during the reporting period.
#2 Fuel Oil Burned (gallons)Sub-Bituminous Coal Burned (tons)
219,421
Section 12.0 and 13.0 - Unit 2 Malfunction, Deviations, and Monitoring
Downtime Information
Table 12-1 Monitoring Equipment Manufacturer and Model number
Pollutant Manufacturer Model Number
Sulfur Dioxide Thermo 43iQ
Carbon Dioxide
(COz)r Thermo 4rOiQ
Table l2-2: Most Recent CMS Certification or Audit
U2 CEMS Analyzer Latest RATA Date Latest Linearity Date
Carbon Dioxide (COz)51212024 812012024
Sulfur Dioxide (SOz)5/2/2024 8/20t2024
Table 12-3: Unit Operating Time During the Reporting Period
U2 Operating Period Hourc of Unit Operation
3'd Quarter,2024 2207.98
Table l2-4: Excess Emission Summary
I The COz analyzer is used as a diluent for calculating heat input based emission limits
5
U2 Excess Emissions
Summary
PM SOr Hg
Total Hours of Exceedance 0 0 0
Exceedance percent of total
operating hours 0.0 0.0%0.0
Hours during startup and
shutdown 0 0 0
Hours during control
equipment problems 0 0 0
Hours during process hours 0 0 0
Hours during other know
problems 0 0 0
Hours during unknown causes 0 0 0
Emission Limit 0.030 0.20 1.2
Emission Limitation Unit lb/MMBtu lb/MMBtu LblTBtu
Emission limitation averaging
period
Quarterly Stack
Testing
30 boiler
operating-day
30 boiler
operating-day
Table l2-5: CMS performance summary
U2 CMS Performance Summary SOz
Downtime percent of total operating hours 0.31%
Total hour of CMS downtime 6.92
Hours due to monitoring equipment malfunctions 0
Hours due to non-monitoring equipment malfunctions 0
Hours due to quality assurance/quality control calibrations 4.93
Hours due to other known causes 1.98
Hours due to other unknown causes 0
For applicable elements of Appendix E Sections 12.l-12.3 and l3.l - 13.5, see Attachments B and C.
No deviations from rule requirements occurred other than those stated on this report and attachments.
Sections 14.0 through 30.0 - Reference Method Data
For applicable elements of Appendix E Sections 14-30, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 31.0 - Other Information for Each Test or Test Series
In accordance with section 31.0 and to provide reporting transparency, all stack testing data
relevant to compliance with Subpan UUUUU of Part 63 is being submitted in pdf format with
this quarterly compliance report.
Laren Huntsman
Responsible Official
Managing Director - Hunter Power Plant
Date: November 7, 2024
6
Report Certification
accuracy ofthe report:
Attachments:
Attachment A: MATS 30-Day Rolling SOz lb/IvIMBtu Average Data
Attachment B: SOz Monitor Downtime Events Report
Attachment C: Excess Emissions Report
Attachment A
MATS 30-Day Rotting SO2 tb/MMBtu Average Data
MATS 30 Day Rolling Average
PIANT: HUNTER PLANT
Report Period : 07 I 0L I 2024 Throush 09 I 30 I 2024
Source: UNIT2 Parameter: SO2RMATS
Value = Offline Data
valuer = Average represents a buildint 3oo Average
Value = Exceedance Report Version 5.2
Report Generated: lL/O6/24 13:26 HTRDAHso4\\reportuser
Date l-Day Avg 3O-Day Avg Total
Operating
Valid Operating
Hourc
Invalid
Operating
Monltor
Availability
71112024 o.096 0.08 720 719 1 99.9%
7t2t2024 0.067 0.079 720 717 3 99.6%
7t3t2024 0.045 0.078 720 717 3 99.6%
7t4t2024 0.052 0.077 720 717 3 99.6%
7t512024 0.049 0.075 720 717 3 99.6%
7t6t2024 0.057 0.074 720 717 3 99.6%
7t7t2024 0.065 o.o74 720 7',17 3 99.6%
7t8t2024 0.069 0.073 720 717 3 99.6%
7t9t2024 0.063 0.072 720 717 3 99.6%
7t10t2024 0.069 o.o72 720 7',17 3 99.6%
711112024 o.o72 0.071 720 717 3 99.6%
7t1212024 0.069 0.071 720 7'.17 3 99.6%
7t13t2024 0.056 0.07 720 717 3 99.6%
7t14t2024 0.051 0.069 720 715 5 99.3%
711512024 0.073 0.068 720 7',ts 5 99.3%
7t16t2024 0.073 0.068 720 7',15 5 99.3olo
7t17t2024 0.076 0.067 720 715 5 99.3%
7t18t2024 0.062 0.066 720 7'.ts 5 99.3%
7t19t2024 0.065 0.066 720 715 5 99.3%
7t20t2024 0.066 0.065 720 715 5 99.3%
7t21t2024 0.076 0.065 720 715 5 99.3%
7t22t2024 0.073 0.065 720 715 5 99.3%
7t23t2024 o.o7 0.066 720 715 5 99.3%
7t24t2024 o.M7 0.065 720 715 5 99.3%
7t25t2024 0.038 0.004 720 715 5 99.3%
7t26t2024 0.038 0.063 720 715 5 99.3olo
7t2712024 0.035 0.062 720 715 5 99.3%
7t28t2024 0.038 0.061 720 715 5 99.3%
7t29t2024 0.038 0.06 720 715 5 99.3%
7t30t2024 0.041 0.06 720 715 5 99.3%
7131t2024 0.045 0_058 720 716 4 99.4o/o
8t'U2024 0.051 0.057 720 718 2 99.7o/o
812t2024 0.078 0.058 720 718 2 99.7o/o
81312024 0.075 0.059 720 718 2 99.7o/o
8t4t2024 o.o77 0.06 720 718 2 99.7o/o
815t2024 0.072 0.061 720 718 2 99.7o/o
8t612024 0.073 0.061 720 718 2 99.7%
8t7t2024 0.079 0.061 720 718 2 99.7o/o
8t8t2024 0.079 0.062 720 718 2 99.7o/o
8t912024 0.08 0.062 720 718 2 99.7o/o
MATS 30 Day Rolling Average
P|ant: HUNTER PI.ANT
Repoft Period : 07 I 0U 2024 Throush 09 130 I 2024
Source: UNIT2 Parameter: SO2RMATS
Value = Offline Data
Valuer = Average represents a buildinS 30D Averate
Value = Exceedance Report Version 5.2
Report Generated: n/o6124 L3:26 HTRDAHSO4\\reportuser
8t10t2024 0.079 0.062 720 718 2 99.7%
811'12024 0.085 0.063 720 7',t$2 99 -7o/"
8t12t2024 o.o72 0.064 720 718 2 99.70/o
8113t2024 0.o7 0.064 720 720 0 100.0%
8t14t2024 0.071 0.064 720 720 0 100.0%
8115t2024 0.077 0.064 720 720 0 100.0%
8t1612024 0.066 0.064 720 720 0 100.0%
8t17t2024 0.07 t 0.oil 720 720 0 100.0%
8118t2024 0.076 0.065 720 720 0 100.oo/"
8t19t2024 0.o74 0.065 720 720 0 100.0%
8120t2024 0.078 0.065 720 720 0 100.0%
8t21t2024 o.o74 0.065 720 720 0 100.0%
8t22t2024 0.073 0.065 720 720 0 100.0%
8t23t2024 o.o77 o.066 720 720 0 100.0%
812412024 0.078 0.067 720 720 0 100.0%
8t25t2024 0.084 0.069 720 720 0 '100.0%
8t26t2024 o.o74 0.07 720 720 0 100.0%
812712024 0.082 o.o72 720 720 0 100.0%
8t28t2024 0.077 0.073 720 720 0 100.0%
812912024 0.082 o.o74 720 720 0 100.0%
813012024 0.081 0.075 720 720 0 100.07o
8t31t2024 0.079 0.076 720 720 0 100.0%
9t'v2024 0.079 0.076 720 720 0 100.0%
9t2t2024 0.077 o.077 720 720 0 100.07o
9t3t2024 0.079 o.o77 720 720 0 't00.070
9t4t2024 0.08 0.077 724 720 0 100.0%
9t512024 0.081 o.o77 720 720 0 100.0%
9t612024 o.o77 0.077 720 720 0 100.0%
9t7t2024 o.o77 0.077 720 720 0 100_0%
9t812024 0.075 0.077 720 720 0 100.0%
9t9t2024 0.072 o.o77 720 720 0 100.0%
9t10t2024 0.071 0.076 720 720 0 100.0%
9t1',U2024 0.077 0.076 720 720 0 100.0%
9112t2024 0.076 0.077 720 720 0 100.0%
9t1312024 0.082 0.077 720 720 0 1OO.Oo/o
9t14t2024 0.065 0.077 720 720 0 100.0%
911512024 0.084 0.077 720 720 0 100.0%
9t16t2024 0.082 o.o77 720 720 0 't00.0%
9t17t2024 0.071 0.077 720 720 0 100.0%
9t18t2024 0.069 o.o77 720 718 2 99.7o/o
9t19t2024 0.067 0.077 720 718 2 99.7o/"
912012024 0.o72 o.077 720 718 2 99.7o/o
MATS 30 Day Rolling Average
P|ant: HUNTER PI-ANT
Report Period : 07 I 0L I 2024 Throush 09 I 30 I 2024
Source: UNIT2 Parameter: SO2RMATS
st21t2024 0.062 0.076 720 718 2 99.7Yo
9t2212024 0.062 0.076 720 718 2 99-7o/"
9t23t2024 o.072 0.076 720 714 2 99.7o/o
9t24t2024 0.075 0.075 720 718 2 99.7%
912512024 0.071 0.075 720 714 2 99.7o/o
9t26t2024 0.075 0.075 720 718 2 99.7Yo
9t27t2024 0.075 0.075 720 718 2 99.7o/.
9t28t2024 0.073 0.075 720 718 2 99.7o/o
9t29t2024 0.078 0.075 720 7't8 2 99.7o/o
9t30t2024 0.0M 0.074 720 718 2 99.7Yo
Value = Offline Data
Valuer = Average represents a building 30D Average
Value = Exceedance
Report Generated: lI/O5124 13:26
Report Version 5.2
HTRDAHSO4\\reportuser
Attachment B
SO, Monitor Downtime Events Report
Downtime Events - Duration
Plant: HUNTER PLANT
Report Period: 0710112024 00:00 Through 0913012024 23:59
Time Online Criteria: 1 minute(s)
Source: UNIT2
Paramotor: SO2RMATS
lntcrv.l: 001H
O71011202405:N 0710112024 05:59 0d - th - 0m 00 - Default
00 - (default)
0710212024 05:00 0710212024 05:59 0d - th - 0m 00 - Default
00 - (default)
0710212024 O7:OO OTlO2l2O24 07:59 0d - th - 0m 00 - Default
00 - (defautt)
0711412024 18:00 0711412024 19:59 0d - 2h - 0m 00 - Default
00 - (default)
0911812024 07:00 0911812O24 08:59 0d - 2h - 0m 00 - Default
00 - (default)
NumberofEvents: 5
Total Duratlon: 0d - 7h - 0m
' lndicates duration incident could have additional data prior to the strart dat6 or following the end date.
lncident lD Start
Date/Time
End
Date/Time
Duration
(dd:hh:mm)
Reason Code - Description
Action Code - Descriotion
Report Generated : 1 1 lOGl24 1 3:U Report Version 4.0 HTRDAHS04\reporluser 1of 1
Attachment C
Unit 2 Excess Emissions Report
PM Excess Emissions
0.030 lb/MMBtu (Quarterly Stack Testing)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No PM Excess Emissions occurred during the reporting period
No PM Malfunction occurred during the reporting period
SOz Excess Emissions
0.20 lb/MMBtu (30 Boiler Operating Day Average)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No SOz Excess Emissions occurred during the reporting period
SOz monitor equipment malfunctions noted in Attachment B.
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
Hg Excess Emissions
1.2 lb/TBtu (30 Boiler Operating Day Average)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No Hg Excess Emissions occurred during the reporting period
Hg monitor equipment malfunctions noted in Attachment B.
Excess
Emission
lncident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
YN Cause Corrective
Action
l?acrFtEoRP
Hunter Power Plant
MATS Quarterly Compliance Report Unit 3
40 CFR 63.10031(e)
July L, 2024- September 30,2024
Section I .0 - LJnit 3 Report Summary
Name and address of the afl-ected source
Hunter Power Plant,
1000 S. Highway l0 Castle Dale Utah
P.O. Box 569
Castle Dale, Utah 84528
Identification of each hazardous air pollutant monitored at the affected source
I. Non-Mercury HAPS metals using a quarterly filterable particulate matter (PM) stack
test as a surrogate to demonstrate compliance. On June 6, 201 8, the Utah Department
of Environmental Quality - Division of Air Quality agreed that the Hunter Plant Unit 3
met the requirements to qualifu as a low emitting EGU (LEE) unit. The Hunter Plant
submitted a summary table showing three years of quarterly test data. Each particulate
matter (PM) testing result was below one-half of the 0.030 lb/MMBtu limit, or 0.01 5
lb/MMBtu as required by the subpaft.
II. Acid gases using sulfur dioxide (SOz) as a surrogate to demonstrate compliance by an
SOz continuous emissions monitoring system (CEMS).
IIl. Mercury (Hg), compliance demonstrated by an annual EPA Method 30B sorbent trap
test to re-confirm LEE status.
A brief description of the process unit
Hunter Unit 3 is an Electric Utility Steam Generating Unit, designed as a dry bottom
wall-fired boiler, designed by Babcock and Wilcox.
i. Rated Heat Input Capacity of 4,910 MMBtu/hr.
ii. The unit is equipped with the following add-on controls:
l. Pulse Jet Fabric Filter (baghouse)
2. Wet Lime Glue Gas Desulfurization (wet scrubber)
3. Low-NOx burner technology, with over-fire air
iii. Fuels used are sub-bituminous coal using #2 fuel oil for startup fuel when
needed.
Unit Category
i. Unit 3 is an existing coal-fired unit combusting non-low rank virgin coal
demonstrating compliance with the emission limits found in Table 2 to Subpart
UUUUU of Part 63
The emission and operating parameter limitations
i. Filterable PM quarterly stack testing demonstrating compliance with a 0.030
lb/MMBtu emission limit. The unit has demonstrated and achieved low
emitting EGU (LEE) status.
I.
II.
III.
SOz CEMS as a surrogate for acid gases reporting hourly averages in units of
lb/MMBtu demonstrating compliance with a 30 boiler-operating-day average
limit of 0.20lbiMMBtu.
Hg annual EPA Method 308 sorbent trap test reporting hourly averages in
units of Ib/TBtu demonstrating compliance with a 30 boiler-operating-day
average of L2 lb/TBtu.
A description of any changes in CMS, processes, or controls since the last reporting
period
No changes occurred during the reporting period that would affect compliance to MATS.
Recent perfbrmance test results
lt.
llt.
Table 1-1: Unit 3 Filterable Particulate Matter LEE Test Results Summata
Test ID Test Date
Average
PM rate
(lb/mmBtu)
MATS
PM
Limit*
Average
PM
(lbl[IW-hr)
MATS
PM
Limit*
Unit Status
2024*0612012024 0.002 0.030 0.002 0.30
LEE
Achieved in
2018.
Maintained
with
612012024
LEE test
*Low Emitter Limits are 0.015 Ib./MM-BTU and 0.15 lbs./MW-HR
Table 1-2: Unit 3 Mercury LEE Test Results Summala
Test II)Test Date
Hg rate
(lbiTBtu)
MATS
Hg
Threshold
Unit Status
2023 1v2712023 0.05 0.12
LEE Achieved.
Maintained with
1112712023 LEE test
Section 2.0 - Unit 3 MATS Compliance Report Root Data Elements
Table 2-1: Root Data Elements
2.1 Fac tv ORIS Code 6165
2.2 Fac W Name Hunter
2.3 Fac tv Reeistrv ldentifier (ORISPL)8069
2.4 Title 40 Part 63
2.5 Annlicable Subnart UUUUU
2.6 Calendar Year 2024
2.7 Calendar Ouarter 3'd Quarter
2.8 Submission Comment (optional)See cover letter
Section 3.0 - Unit 3 Performance Stack Test Summary
For applicable elements of Appendix E Section 3.1-3.14, see stack testing reports submitted for the
quarter. Stack testing data is being provided in both .xml and .pdf formats.
Section 4.0 - Operating Limit Data (PM, CPMS, only)
No PM CPMS on unit. Section not applicable.
Section 5.0 - Unit 3 Performance Test Run Data
For applicable elements of Appendix E Section 5.1-5.8, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 6.0 - Unit 3 Conversion Parameters
For applicable elements of Appendix E Section 6.1-6.3, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 7 .0 - Unit 3 Quality Assurance Parameters
For applicable elements of Appendix E Section 7.1-7.3, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 8.0 - Averaging Group
Unit is not part of an averaging group.
Section 9.0 - Unit 3 Compliance Averages
Please see Attachment A-l which includes 30-boiler-operating-day average data for sulfur dioxide.
Section 10.0 - Unit 3 Information
Section I 1.0 - Unit 3 Fuel Usage Information
Table 11-1 Quarterly Fuel Usage Information
Table 10-1: Unit Information
Section Data Element Plant Data
10.1 Unit ID Unit 3
10.2
Date of Last Tune-up; Burner
Tio Inspection June 24 - 2024: March I 5. 2024
r 0.3 Emergency Bypass Information.No emersencv bvoass occurred durins ouarter
Month #2 Fuel Oil Burned (gallons)Sub-Bituminous Coal Burned (tons)
July 84,589 64,363
August 55,788 57,631
September 71,645 61,336
Total 212,022 183J30
Note: No new fuel types were combusted during the reporting period.
Section 12.0 and 13.0 - Unit 3 Malfunction, Deviations, and Monitoring
Downtime Information
Table 12-l Monitoring Equipment Manufacturer and Model number
Pollutant Manufacturer Model Number
Sulfur Dioxide Thermo 43iQ
Carbon Dioxide
(COz)r Thermo 4lOiQ
Table l2-2: Most Recent CMS Certification or Audit
U3 CEMS Analyzer Latest RATA Date Latest Linearity Date
Carbon Dioxide (COz)10125t2023 8126t2024
Sulfur Dioxide (SOz)t0/2st2023 812612024
Table l2-3: Unit Operating Time During the Reporting Period
U3 Operating Period Hours of Unit Operation
3'd Quarter, 2024 2,079.75
Table 12-4: Excess Emission Summary
I The COz analyzer is used as a diluent for calculating heat input based emission limits.
5
U3 Excess Emissions
Summary
PM SOz Hg
Total Hours of Exceedance 0 0 0
Exceedance percent of total
operating hours 0.0 0.0%0.0
Hours during startup and
shutdown 0 0 0
Hours during control
equipment problems 0 0 0
Hours during process hours 0 0 0
Hours during other know
problems 0 0 0
Hours during unknown causes 0 0 0
Em ssion Limit 0.030 0.20 1.2
Em ssion Limitation Unit lb/MMBtu lb/MMBtu LblTBtu
Em ission lim itation averaging
period
Quarterly Stack
Testing
30 boiler
operating-day
30 boiler
operating-day
Table 12-5: CMS performance summary
U3 CMS Performance Summara SOz
Downtime percent of totaloperating hours 0.s2%
Total hour of CMS downtime 10.92
Hours due to monitoring equipment malfunctions 0
Hours due to non-monitoring equipment malfunctions 0
Hours due to quality assurance/quality control calibrations 0.98
Hours due to other known causes 9.93
Hours due to other unknown causes 0
For applicable elements of Appendix E Sections 12.1-12.3 and l3.l-13.5, see Attachments B and C.
No deviations from rule requirements occurred other than those stated on this report and attachments.
Sections 14.0 through 30.0 - Reference Method Data
For applicable elements of Appendix E Sections l4-30, see stack testing reports submitted for the quarter.
Stack testing data is being provided in both .xml and .pdf formats.
Section 31.0 - Other Information for Each Test or Test Series
In accordance with section 31.0 and to provide reporting transparency, all stack testing data
relevant to compliance with Subpart UUUUU of Part 63 is being submitted in pdf format with
this quarterly compliance report.
Responsible Offrcial
Managing Director - Hunter Power Plant
Date: NovEnqbed,2924
Attachments:
Attachment A: MATS 30-Day Rolling SOz lb/IvIMBtu Average Data
Attachment B: SOz Monitor Downtime Events Report
Attachment C: Excess Emissions Report
Report Certification
Attachment A
MATS 30-Day Rotting SO2 tb/MMBtu Average Data
MATS 30 Day Rolling Average
P|ant: HUNTER PI.ANT
Report Period : 07 I 0t I 2024 Throush 09 I 30 I 2024
Source: UNIT3 Parameter: SO2RMATS
Date l-Day Avg 3O-Day Avg Total
Operating
Valid Operating
Hours
Invalid
Operating
Monitor
Availability
7t1t2024 0.089 0.087 616 610 6 99.0%
7t2t2024 0.086 0.087 616 610 6 99.0%
7t3t2024 0.086 0.086 617 611 6 99.0%
7t4t2024 0.085 0.086 638 632 6 99.1%
71512024 o.085 0.086 647 u2 5 99.20/
7t6t2024 0.085 0.086 647 642 5 99-2o/"
7t7t2024 0.085 0.086 647 u2 5 99.2o/o
7t8t2024 0.085 0.086 647 u2 5 99.2o/o
7t9t2024 0.096 0.087 660 655 5 99.2o/"
7110t2024 0.085 0.089 653 649 4 99.40/o
7111t2024 0.084 0.086 645 642 3 99.5%
711212024 0.073 0.086 665 662 3 99.5%
7t1312024 o.o74 0.084 678 675 3 99.6%
7l't4t2024 0.074 0.082 680 677 3 99.6%
7115t2024 0.08 0.081 680 677 3 99.6%
7116t2024 0.073 0.082 680 677 3 99.6%
7t17t2024 0.077 o.o82 680 677 3 99.6%
7t18t2024 0.08 0.083 680 677 3 99.6%
7t19t2024 0.083 0.084 680 677 3 99.6%
7t20t2024 0.09 0.084 680 677 3 99.6%
712',U2024 0.0s2 0.084 680 677 3 99.6%
7122t2024 0.08 0.084 680 678 2 99.70h
7123t2024 0.09 0.084 680 678 2 99.70/o
7t24t2024 0.083 0.083 680 678 2 99.7o/o
7t25t2024 0.08 0.084 682 681 99.9%
7t2612024 0.085 0.084 690 689 1 99.9%
7t27t2024 0.088 0.084 691 690 99.9%
7128t2024 0.088 0.084 691 690 1 99.9%
7t29t2024 0.088 0.084 691 690 99.9%
7t30t2024 0.087 0.084 690 689 1 99.9%
7t3',U2024 0.094 0.084 690 689 99.9%
8t112024 0.085 0.084 690 689 1 99.9%
8t212024 0.087 0.0M 689 688 99.9%
81312024 0.086 0.084 689 688 1 99.9%
814t2024 0.087 0.084 689 688 99.9%
815t2024 0.085 0.084 689 688 1 99.9olo
8t612024 0.087 0.084 689 688 I 99.9%
8t7t2024 0.081 0.084 689 688 ,|99.9%
8t812024 0.079 0.083 689 688 99.9%
8t912024 0.083 0.083 708 707 1 99.9%
Value = Offline Data
Valuet = Average represents a buildlng 30D Average
Value = Exceedance Report Version 5.2
Report Generated: lt/o6/24 13:27 HTRDAHso4\\reportuser
MATS 30 Day Rolling Average
PIANT: HUNTER PLANT
Repoft Period: 0710L12024 Throuqh 0913012024
Source: UNIT3 Parameter: SO2RMATS
811012024 0.083 0.083 718 714 0 100.0%
4t11t2024 0.082 0.084 718 718 0 100.0%
8t1212024 0.079 0.084 7',tB 718 0 100.0%
811312024 0.079 0.084 714 710 8 98.9%
8t14t2024 0.08 0.084 718 710 I 98.9%
8115t2024 0.085 0.084 714 709 I 98.70/o
8t16t2024 0.087 0.085 71a 709 I 98.7Yo
8t1712024 0.086 0.085 714 709 I 98.7o/o
8t18t2024 0.086 0.085 718 709 I 98.7%
8t19t2024 0 0.085 714 709 I 98.7%
8t20t2024 0 0.085 718 709 I 98.7o/o
812'12024 0 0.085 696 687 9 98.7o/"
8t22t2024 0.086 0.085 696 687 I 98.7o/o
4t23t2024 0.086 0.085 696 687 I 98.70h
8t24t2024 0.086 0.085 696 687 I 98.7%
8t2st2024 0.086 0.085 696 687 I 98.7o/.
8126t2024 0.084 0.085 696 687 I 98.7%
8t27t2024 0.086 0.085 696 687 I 98.7o/"
8t28t2024 0.086 o.085 696 687 I 98.7o/o
8t2912024 0.085 0.085 696 687 I 98.7o/"
8130t2024 0.085 0.085 696 687 I 98.7o/o
4t31t2024 0.085 0.085 697 688 9 98.70/,
91"12024 0.085 0.084 697 688 I 98.7%
9t212024 0.084 0.084 697 688 I 98.7o/o
9t312024 0.065 0.084 698 689 9 98.7%
914t2024 0.07 0.083 698 689 I 98.7o/"
9t5t2024 0.087 0.083 698 689 I 98.70/o
9t612024 0.087 0.08s 698 689 s 98.7o/.
9t7t2024 0.086 0.083 698 689 I 98-7Yo
9t8t2024 0.084 0.083 698 689 I 98.7o/o
9t9t2024 0.083 0.083 698 689 I 98.7o/o
9t10t2024 0 0.083 679 670 I 98.7o/o
9111t2024 0.084 0.083 679 670 I 98.7%
911212024 0.086 0.083 679 670 I 98.7%
9t13t2024 0.086 0.084 679 670 s 98.7o/.
9t1412024 0.076 0.084 679 678 1 99.9%
911512024 0.085 0.084 679 678 1 99.9%
9t16t2024 0.086 0.084 679 679 0 100.0%
9t17t2024 0.084 0.084 679 678 1 99.9%
9t1812024 0.083 0.084 679 678 1 99.9%
9t1912024 0.085 0.084 679 678 1 99.9%
9t20t2024 0.086 0.084 701 700 1 99.9%
Value = Offline Data
Valuer = Average represents a building 30D Average
Value = Exceedance Report Version 5.2
Report Generate d: LL/O5/24 13:27 HTRDAHSO4\\reportuser
MATS 30 Day Rolling Average
PIANT: HUNTER PLANT
Repoft Period : 07 10U2024 Throush 09 130 I 2024
Source: UNIT3 Parameter: SO2RMATS
9121t2024 0.085 0.084 701 700 1 99.9%
9122t2024 0.085 0.084 701 700 1 99.9%
9t23t2024 0.086 0.084 701 700 1 99.9%
9t24t2024 0.082 0.083 701 700 1 99.9%
912512024 0.079 0.083 701 700 1 99.9%
9t26t2024 0.085 0.083 701 700 1 99.9%
st27t2024 0.083 0.083 701 700 1 99.9%
9128t2024 0.084 0.083 701 700 1 99.9%
st29t2024 0.085 0.083 701 700 1 99.9%
st30t2024 0.086 0.083 701 700 1 99.9%
Value = Offline Data
Valuer = Average represents a building 30D Average
Value = Exceedance Report Version 5.2
Report Generated:1r/06/24 73:27 HTRDAHso4\\reportuser
Attachment B
SO, Monitor Downtime Events Report
Downtime Events - Duration
Plant: HUNTER PLANT
Report Period: 0710112024 00:00 Through 0913012024 23:59
Time Online Criteria: 1 minute(s)
Source:
Parameter:
!ntoryal:
UNIT3
SO2RMATS
001H
lncident lD Start
Date/Time
End
Date/Time
Duration
(dd:hh:mm)
Reason Code - Description
Actlon Code - Description
0711112024 09:00 O7/1112024 O9:59 0d-1h-0m 00 -Defauh
00 - (default)
0U1312024 07:30 0811312024 13:59 0d - 7h - 0m 00 - Default
00 - (default)
0811312024 23:00 0811312024 23:59 0d - th - 0m 00 - Default
00 '(default)
0811512024 07:OO 0811512024 07:59 0d - th - 0m 00 - Default
00 - (default)
0911712024 12:00 0911712024 12:59 0d - th - 0m 00 - Default
00 - (default)
Number of Ev6nE: 5
Totel Duratlon: 0d - 1th - 0m
' lndicates duration incident could have additional data prior to the start dat6 or following the end date.
Report Generated : 1 1 lOGl24 13:35 Report Version 4.0 HTRDAHSO4Veportuser 1of I
Attachment C
Unit 3 Excess Emissions Report
PM Excess Emissions
0.030 lb/MMBtu (Quarterly Stack Testing)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No PM Excess Emissions occurred during the reporting period
No PM Malfunction occurred during the reporting period
SOz Excess Emissions
0.20 lb/MMBtu (30 Boiler Operating Day Average)
Total time for all excess emissions 0.0 hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No SOz Excess Emissions occurred during the reporting period
SOz monitor equipment malfunctions noted in Attachment B.
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
rl
Hg Excess Emissions
1.2 lb/TBtu (30 Boiler Operating Day Average)
Total time for all excess emissions QQ hours
Total time for excess emissions occurring during startup/shutdown or malfunction 0.0
hours
Malfunction reason and corrective /preventive action taken)
No Hg Excess Emissions occurred during the reporting period
Hg monitor equipment malfunctions noted in Attachment B.
Excess
Emission
Incident
Number
Magnitude
of Excess
Emissions
lb/MMBtu
Date Time
Beginning
Time
Ending
Hours
Involved
Malfunction
Y/N Cause Corrective
Action
,^YiffiR[,ffiPmH
I'l0t,r 'l B 20?,1