DAQ-2025-000542

1
DAQC-096-25
Site ID 12495 (B5)

MEMORANDUM

TO: FILE – WEST VALLEY POWER SOURCE GENERATION

THROUGH: Harold Burge, Major Source Compliance Section Manager

FROM: Rob Leishman, Environmental Scientist

DATE: January 24, 2025

SUBJECT: West Valley Power, Major, NSPS, Title IV, Title V, Salt Lake County,
FRS # UT0000004903500527

INSPECTION TYPE: State Electronic Data Report (SEDR) Review

REVIEW DATE: January 24, 2025

SOURCE LOCATION: Salt Lake City/Salt Lake County

SOURCE CONTACT: Jerame Blevins – 801-798-7489

APPLICABLE
REGULATIONS: Title V Operating Permit
PERMIT NUMBER: 3500527005
DATE OF PERMIT: July 8, 2024
Date of Last Revision: July 8, 2024

SOURCE INSPECTION
EVALUATION: With the exception of sources that only monitor for opacity,
quarterly report memoranda will only address the findings of the
quarterly report. Approval Order and Title V permit conditions
addressing continuous emission monitoring requirements will be
addressed in West Valley’s relative accuracy performance
specification test review memorandum.

SEDR REVIEW:

Fourth Quarter 2024
% Monitor Availability (MA) Performance Test Dates
(N/A to Opacity)
Summary of Excess Emissions During
Point Source Operation
Point
Source
Op.
hrs. Channel MA CGA Lin RATA Point
Source Channel Hrs. Limitation
1 1057 O2 99% 11/26/24 06/18/24 1 NOx 0.00
5 ppmdv,
15% O2 dry -
30 day rolling
average

1 8 2

2
Fourth Quarter 2024
% Monitor Availability (MA) Performance Test Dates
(N/A to Opacity)
Summary of Excess Emissions During
Point Source Operation
Point
Source
Op.
hrs. Channel MA CGA Lin RATA Point
Source Channel Hrs. Limitation
1 1057 CO 99% 11/26/24 06/18/24 2 NOx 0.00
5 ppmdv,
15% O2 dry -
30 day rolling
average
1 1057 NOx 98% 11/26/24 06/18/24 3 NOx 0.00
5 ppmdv,
15% O2 dry -
30 day rolling
average
2 416 O2 100% 11/26/24 06/19/24 4 NOx 0.00
5 ppmdv,
15% O2 dry -
30 day rolling
average
2 416 CO 100% 11/26/24 06/19/24 5 NOx 0.00
5 ppmdv,
15% O2 dry -
30 day rolling
average
2 416 NOx 100% 11/26/24 06/19/24 1 CO 0.00
10 ppmdv,
15% O2 dry -
30 day rolling
average
3 1149 O2 100% 11/26/24 06/20/24 2 CO 0.00
10 ppmdv,
15% O2 dry -
30 day rolling
average
3 1149 CO 100% 11/26/24 06/20/24 3 CO 0.00
10 ppmdv,
15% O2 dry -
30 day rolling
average
3 1149 NOx 100% 11/26/24 06/20/24 4 CO 0.00
10 ppmdv,
15% O2 dry -
30 day rolling
average
4 835 O2 100% 11/26/24 06/21/24 5 CO 0.00
10 ppmdv,
15% O2 dry -
30 day rolling
average
4 835 CO 99% 11/26/24 06/21/24 1 NOx 0.00
37 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
4 835 NOx 99% 11/26/24 06/21/24 2 NOx 0.00
37 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
5 591 O2 99% 11/26/24 06/17/24 3 NOx 0.00
37 All 5,
lb/hour,15%
O2 dry - 30

3
Fourth Quarter 2024
% Monitor Availability (MA) Performance Test Dates
(N/A to Opacity)
Summary of Excess Emissions During
Point Source Operation
Point
Source
Op.
hrs. Channel MA CGA Lin RATA Point
Source Channel Hrs. Limitation
day rolling
average
5 591 CO 99% 11/26/24 06/17/24 4 NOx 0.00
37 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
5 591 NOx 99% 11/26/24 06/17/24 5 NOx 0.00
37 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
1 CO 0.00
43.75 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
2 CO 0.00
43.75 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
3 CO 0.00
43.75 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
4 CO 0.00
43.75 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
5 CO 0.00
43.75 All 5,
lb/hour,15%
O2 dry - 30
day rolling
average
1 NOx 0.00
100 ppmdv,
15% O2 dry -
4 hour rolling
average
2 NOx 0.00
100 ppmdv,
15% O2 dry -
4 hour rolling
average
3 NOx 0.00
100 ppmdv,
15% O2 dry -
4 hour rolling
average

4
Fourth Quarter 2024
% Monitor Availability (MA) Performance Test Dates
(N/A to Opacity)
Summary of Excess Emissions During
Point Source Operation
Point
Source
Op.
hrs. Channel MA CGA Lin RATA Point
Source Channel Hrs. Limitation
4 NOx 0.00
100 ppmdv,
15% O2 dry -
4 hour rolling
average
5 NOx 0.00
100 ppmdv,
15% O2 dry -
4 hour rolling
average

Excess Emission Report - Hourly Summary
Point
Source Channel
Startup
&
Shutdown
Control
Equipment
Problems
Process
Problems
Other
Known
Causes
Unknown
Causes
Emission
Limit
1 NOx 0 0 0 0 0 5 ppmdv, 15% O2 dry - 30 day
rolling average
2 NOx 0 0 0 0 0 5 ppmdv, 15% O2 dry - 30 day
rolling average
3 NOx 0 0 0 0 0 5 ppmdv, 15% O2 dry - 30 day
rolling average
4 NOx 0 0 0 0 0 5 ppmdv, 15% O2 dry - 30 day
rolling average
5 NOx 0 0 0 0 0 5 ppmdv, 15% O2 dry - 30 day
rolling average
1 CO 0 0 0 0 0 10 ppmdv, 15% O2 dry - 30
day rolling average
2 CO 0 0 0 0 0 10 ppmdv, 15% O2 dry - 30
day rolling average
3 CO 0 0 0 0 0 10 ppmdv, 15% O2 dry - 30
day rolling average
4 CO 0 0 0 0 0 10 ppmdv, 15% O2 dry - 30
day rolling average
5 CO 0 0 0 0 0 10 ppmdv, 15% O2 dry - 30
day rolling average
1 NOx 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry -
30 day rolling average
2 NOx 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry -
30 day rolling average
3 NOx 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry -
30 day rolling average
4 NOx 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry -
30 day rolling average
5 NOx 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry -
30 day rolling average
1 CO 0 0 0 0 0 43.75 All 5, lb/hour,15% O2
dry - 30 day rolling average
2 CO 0 0 0 0 0 43.75 All 5, lb/hour,15% O2
dry - 30 day rolling average

5
Excess Emission Report - Hourly Summary
Point
Source Channel
Startup
&
Shutdown
Control
Equipment
Problems
Process
Problems
Other
Known
Causes
Unknown
Causes
Emission
Limit
3 CO 0 0 0 0 0 43.75 All 5, lb/hour,15% O2
dry - 30 day rolling average
4 CO 0 0 0 0 0 43.75 All 5, lb/hour,15% O2
dry - 30 day rolling average
5 CO 0 0 0 0 0 43.75 All 5, lb/hour,15% O2
dry - 30 day rolling average
1 NOx 0 0 0 0 0 100 ppmdv, 15% O2 dry - 4
hour rolling average
2 NOx 0 0 0 0 0 100 ppmdv, 15% O2 dry - 4
hour rolling average
3 NOx 0 0 0 0 0 100 ppmdv, 15% O2 dry - 4
hour rolling average
4 NOx 0 0 0 0 0 100 ppmdv, 15% O2 dry - 4
hour rolling average
5 NOx 0 0 0 0 0 100 ppmdv, 15% O2 dry - 4
hour rolling average

CMS Performance Summary - Hourly Summary
Point
Source Channel Monitor
Malfunction
Non-monitor
Malfunction
QA
Calibrations
Other
Known
Causes
Unknown
Causes
1 O2 0 0 1 6 0
1 CO 0 0 3 5 0
1 NOx 0 0 3 17 0
2 O2 0 0 0 2 0
2 CO 0 0 1 0 1
2 NOx 0 0 1 0 1
3 O2 0 0 1 0 0
3 CO 0 0 5 0 0
3 NOx 0 0 5 0 0
4 O2 0 0 1 0 0
4 CO 0 0 5 0 0
4 NOx 0 0 5 0 0
5 O2 0 0 2 1 0
5 CO 0 0 2 1 0
5 NOx 0 0 2 1 0

Pollutant Concentration
Exceeded Span of CEM
Monitor Outage During
Point Source Operation
Alternate
Sampling CEM Modifications
0 Hours 71 Hours 0 Hours 0 Events

6
SOURCE INSPECTION
SUMMARY EVALUATION: West Valley maintains its CEMS as required in R307-170 and 40
CFR 60.13. Periods of excess emissions that were recorded by
the CMS in service on each point source during this reporting
period are summarized in the SEDR and described in Pivot Table
400 “Excess Emissions Review.”

CURRENT
RECOMMENDATIONS: All deviations appear to be a result of breakdown or process
related problems that do not warrant issuing a violation. West
Valley was in compliance during this reporting period. No
further enforcement actions should be taken. West Valley’s
NSPS monitoring system meets the performance standards of 40
CFR 60, Appendix B, Performance Specifications.

HPV: No

RECOMMENDATIONS: Check DAS for daily zero and span drift. Check the QC
program to ensure that monitor drift is being tracked and that the
source can identify excessive drift.

ATTACHMENTS: Excel spreadsheet review
Utah Municipal Power Agency

January 20, 2025
Director
Utah Division of Air Quality
PO Box 144820
Salt Lake City, UT 84114-4820
Phone: [phone]

Reference: West Valley Power Plant (Permit #3500527004)
4th Quarter 2024 Excess Emissions, Monitoring, and Deviation Report
4th Quarter 2024 State Electronic Data Report (SEDR)
Reporting Period – October 1, 2024 through December 31, 2024

Dear Director:
A hard copy of the West Valley Power Plant (WVPP) Quarterly Report is enclosed, and is being submitted
to Utah Department of Environmental Quality (UDEQ) as required by the Title V Operating Permit
(Permit # 3500527004).
For this quarter, the WVPP has complied with all the conditions and requirements of the referenced
Title V Operating Permit. There are no deviations to report as indicated in the table below:
Date of Identified
Deviation
Permit Condition for
Which a Deviation Was
Reported
Probable Cause of
Deviation
Corrective Action(s)
Taken
No deviations during
referenced reporting
period.
N/A – No deviations N/A – No deviations None – No deviations

Should you have any questions or need additional information regarding this submittal, please contact
Jerame Blevins at [phone] or me at [phone]

Sincerely,

Travis Ball
VP - Generation
West Valley Power Plant

Enclosure
cc: J. Blevins, & West Valley Compliance File

Utah Municipal Power Agency

Certification Statement

In accordance with Operating Permit Section I: General Provision I.K, I hereby by certify that I am a
Responsible Official as defined in R307-415-3, and based on information and belief formed after
reasonable inquiry, the statements and information in the document are true, accurate, and complete.

____________________________________________________ __________________________
Signature Date

___Travis Ball______________________________________ _UMPA - VP Generation______
Name Title

1/20/2025
West Valley Pwr EER 4Q2024
Point Source Information Late Expired Cal. Gas Valid Cal. Gas Days Yes No
1 Type Code 100
(Company Information)Type Code Company Manager Company Name AIRS # Phone Number
Environmental
Contact
1 100 Jerame Blevins 03500527 801-967-1200 Jerame Blevins
1 100 0 0 0 0
1 Type Code 110
(Point Source Identification)Type Code Point Source
Quarter
1 - 4 Year
Point Source
Operating Hrs. in
Quarter
1 110 4 2024 1057.9
1 110 4 2024 416.4
1 110 4 2024 1149.8
1 110 4 2024 835.1
1 110 4 2024 591.3
1 110 0 0 0
1 Type Code 200
(Monitor Identification)Type Code Point Source Channel Manufacturer Model No. Monitor SN Low Span High Span Installation Date Monitor
Location
1 200 CO Thermo 48iQ 1200696554 0 10000 6/3/2020 Shelter
1 200 NOx Thermo 42iQLS 1200696549 100 500 6/3/2020 Shelter
1 200 O2 Thermo 48iQ 1200696554 0 25 6/3/2020 Shelter
1 200 CO Thermo 48iQ 1200696555 0 10000 6/3/2020 Shelter
1 200 NOx Thermo 42iQLS 1200696550 100 500 6/3/2020 Shelter
1 200 O2 Thermo 48iQ 1200696555 0 25 6/3/2020 Shelter
1 200 CO Thermo 48iQ 1200696556 0 10000 6/4/2020 Shelter
1 200 NOx Thermo 42iQLS 120069551 100 500 6/4/2020 Shelter
1 200 O2 Thermo 48iQ 1200696556 0 25 6/4/2020 Shelter
1 200 CO Thermo 48iQ 1200696557 0 10000 6/4/2020 Shelter
1 200 NOx Thermo 42iQLS 1200696552 100 500 6/4/2020 Shelter
1 200 O2 Thermo 48iQ 1200696557 0 25 6/4/2020 Shelter
1 200 CO Thermo 48iQ 1200696558 0 10000 6/2/2020 Shelter
1 200 NOx Thermo 42iQLS 1200696553 100 500 6/2/2020 Shelter
1 200 O2 Thermo 48iQ 1200696558 0 25 6/2/2020 Shelter
1 200 0 0 0 0 0 0 1/0/1900 0
1
Type Code310
(Excess Emissions)
SUMMARY REPORT
Type Code Channel
Total Hours of Excess
Emissions
Excess Emissions -
% of Total
Operating Hours
RC 701 Hours -
start
up/Shutdown
RC 702 Hours-
Control Equipment
Problems
RC 703 Hours -
Process Problems
RC 704, 706, 707
Hours -Other Known
Causes
RC 705 Hours -
Unknown
Causes
Emission
Limitation
Emission
Limitation
Units
Emission
Limitation
Averaging
Period
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 5 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 5 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 5 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 5 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 5 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 10 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 10 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 10 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 10 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 10 ppmdv, 15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 37 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 43.75 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 43.75 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 43.75 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 43.75 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 43.75 All 5, lb/hour,15% O2 dry30 day rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 100 ppmdv, 15% O2 dry4 hour rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 100 ppmdv, 15% O2 dry4 hour rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 100 ppmdv, 15% O2 dry4 hour rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 100 ppmdv, 15% O2 dry4 hour rolling average
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 100 ppmdv, 15% O2 dry4 hour rolling average
1 310 0 0 0 0 0 0 0 0 0
Point Source
1
2
3
4
5
0
3
4
5
1
2
4
5
5
5
0
West Valley Power
0
1
1
1
2
2
2
3
3
3
4
4
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
0
West Valley Pwr EER 4Q2024
1 Type Code 300 (CMS
Performance Summary) Type Code Channel
Point Source Operating
Hours
Downtime - % of
Total Operating
Hours
Total CMS
Downtime
RC 721 Hours -
Monitor
Malfunction
RC 722 Hours -
Non-monitor
Malfunction
RC 723 Hours -
QA Calibrations
RC 724 Hours -
Other Known
Causes
RC 725
Hours -
Unknown
Causes
1 TRUE 300 O2 1057.9 0.66% 7 0 0 1 6 0
1 TRUE 300 CO 1057.9 0.76% 8 0 0 3 5 0
1 TRUE 300 NOx 1057.9 1.89% 20 0 0 3 17 0
1 TRUE 300 O2 416.4 0.48% 2 0 0 0 2 0
1 TRUE 300 CO 416.4 0.48% 2 0 0 1 0 1
1 TRUE 300 NOx 416.4 0.48% 2 0 0 1 0 1
1 TRUE 300 O2 1149.8 0.09% 1 0 0 1 0 0
1 TRUE 300 CO 1149.8 0.43% 5 0 0 5 0 0
1 TRUE 300 NOx 1149.8 0.43% 5 0 0 5 0 0
1 TRUE 300 O2 835.1 0.12% 1 0 0 1 0 0
1 TRUE 300 CO 835.1 0.60% 5 0 0 5 0 0
1 TRUE 300 NOx 835.1 0.60% 5 0 0 5 0 0
1 TRUE 300 O2 591.3 0.51% 3 0 0 2 1 0
1 TRUE 300 CO 591.3 0.51% 3 0 0 2 1 0
1 TRUE 300 NOx 591.3 0.51% 3 0 0 2 1 0
1 300 0 0 0 0 0 0
1 300 0 0 0 0 0 0
1
Type Code 250
(Performance Specification
RATA Results)
Type Code Channel
Date of Most Current
RATA
Date of Preceding
RATA
Months Between
RATA's
Units of
Measurement CEM Value Reference Method
Value
Relative
accuracy Pass/ Fail
1 371 Days 250 NOx 06/18/24 06/13/23 12 ppmv 3.5 3.3 0.21% Pass
1 371 Days 250 NOx 06/19/24 06/14/23 12 ppmv 3.6 3.1 0.59% Pass
1 371 Days 250 NOx 06/20/24 06/15/23 12 ppmv 3.5 3.5 0.11% Pass
1 371 Days 250 NOx 06/21/24 06/16/23 12 ppmv 3.5 3.7 0.29% Pass
1 371 Days 250 NOx 06/17/24 06/12/23 12 ppmv 3.5 3.6 0.33% Pass
1 371 Days 250 NOx 06/18/24 06/13/23 12 lb/hr 4.6 4.4 5.76% Pass
1 371 Days 250 NOx 06/19/24 06/14/23 12 lb/hr 4.7 4.2 17.26% Pass
1 371 Days 250 NOx 06/20/24 06/15/23 12 lb/hr 4.8 4.7 1.85% Pass
1 371 Days 250 NOx 06/21/24 06/16/23 12 lb/hr 4.5 4.9 9.20% Pass
1 371 Days 250 NOx 06/17/24 06/12/23 12 lb/hr 4.9 5 10.21% Pass
1 371 Days 250 NOx 06/18/24 06/13/23 12 lb/mmBtu 0.013 0.012 0.00% Pass
1 371 Days 250 NOx 06/19/24 06/14/23 12 lb/mmBtu 0.013 0.011 0.20% Pass
1 371 Days 250 NOx 06/20/24 06/15/23 12 lb/mmBtu 0.013 0.013 0.00% Pass
1 371 Days 250 NOx 06/21/24 06/16/23 12 lb/mmBtu 0.013 0.014 0.10% Pass
1 371 Days 250 NOx 06/17/24 06/12/23 12 lb/mmBtu 0.013 0.013 0.10% Pass
1 371 Days 250 CO 06/18/24 06/13/23 12 ppmv 1.8 2.5 78.00% Pass
1 371 Days 250 CO 06/19/24 06/14/23 12 ppmv 2.3 3.1 91.00% Pass
1 371 Days 250 CO 06/20/24 06/15/23 12 ppmv 1.8 2.5 79.00% Pass
1 371 Days 250 CO 06/21/24 06/16/23 12 ppmv 2.9 2 97.00% Pass
1 371 Days 250 CO 06/17/24 06/12/23 12 ppmv 1.7 2.7 151.00% Pass
1 371 Days 250 O2 06/18/24 06/13/23 12 percent 15 15.1 0.74% Pass
1 371 Days 250 O2 06/19/24 06/14/23 12 percent 15 15 0.00% Pass
1 371 Days 250 O2 06/20/24 06/15/23 12 percent 14.9 14.9 0.34% Pass
1 371 Days 250 O2 06/21/24 06/16/23 12 percent 14.9 15 0.57% Pass
1 371 Days 250 O2 06/17/24 06/12/23 12 percent 15 15 0.58% Pass
1 0 Days 250 0 01/00/00 01/00/00 0 0 0 0 0.00% 0
1 Type Code 260
(CGA Results)Type Code Channel Date Audit Point No. Cylinder ID
Cylinder
Expiration Date
Type of
Certification
Units of
Measurement CEM Value Cylinder
Value
Precision
%Pass/ Fail Range - High or
Low
1 Valid Cal. Gas 260 CO 11/26/24 Low EB0086542 06/20/31 P1 ppm 51.767 50.1 3.30% Pass Low
1 Valid Cal. Gas 260 CO 11/26/24 Mid ALM-051898 05/15/25 P1 ppm 107.467 110.6 -2.80% Pass Mid
1 Valid Cal. Gas 260 CO 11/26/24 Low CC442624 06/20/31 P1 ppm 53.3 51 4.50% Pass Low
1 Valid Cal. Gas 260 CO 11/26/24 Mid CC349049 05/25/29 P1 ppm 111.267 111.1 0.20% Pass Mid
1 Valid Cal. Gas 260 CO 11/26/24 Low CC469972 09/20/29 P1 ppm 51.867 50.4 2.90% Pass Low
1 Valid Cal. Gas 260 CO 11/26/24 Mid CC268514 05/25/29 P1 ppm 110.8 110.8 0.00% Pass Mid
1 Valid Cal. Gas 260 CO 11/26/24 Low CC476102 09/20/29 P1 ppm 50.933 50.3 1.30% Pass Low
1 Valid Cal. Gas 260 CO 11/26/24 Mid CC460233 05/25/29 P1 ppm 109.433 110.6 -1.10% Pass Mid
1 Valid Cal. Gas 260 CO 11/26/24 Low CC445198 05/31/30 P1 ppm 51.2 50 2.40% Pass Low
1 Valid Cal. Gas 260 CO 11/26/24 Mid CC450693 05/25/29 P1 ppm 110.633 111 -0.30% Pass Mid
1 260 0 01/00/00 0 0 01/00/00 0 0 0 0 0.00% 0 0
Point Source
Point Source
Point Source
5
0
1
2
3
4
5
1
2
1
1
2
2
2
2
3
3
1
1
1
5
3
4
4
4
5
5
0
0
3
4
5
0
2
3
4
5
1
1
3
4
5
1
2
3
4
5
2
2
3
3
4
4
5
West Valley Pwr EER 4Q2024
1 Type Code 270
(Linearity Test Results)Type Code Channel Date Audit Point No. Cylinder ID
Cylinder
Expiration Date
Type of
Certification
Units of
Measurement CEM Value Cylinder
Value
Precision
%Pass/ Fail Range - High or
Low
1 Valid Cal. Gas 270 NOx 11/26/24 Low EB0086542 06/20/31 P1 ppm 49.367 50.9 3.00% Pass Low
1 Valid Cal. Gas 270 NOx 11/26/24 Mid ALM-051898 05/15/25 P1 ppm 107.767 109.1 1.20% Pass Mid
1 Valid Cal. Gas 270 NOx 11/26/24 High CC191379 08/30/32 P1 ppm 179.067 178.6 0.30% Pass High
1 Valid Cal. Gas 270 O2 11/26/24 Low EB0098415 08/29/31 P1 ppm 6.3 6.3 0% Pass Low
1 Valid Cal. Gas 270 O2 11/26/24 Mid CC741407 05/24/30 P1 ppm 13.533 13.6 1% Pass Mid
1 Valid Cal. Gas 270 O2 11/26/24 High CC741394 03/11/32 P1 ppm 21 20.9 1% Pass High
1 Valid Cal. Gas 270 NOx 11/26/24 Low CC442624 06/20/31 P1 ppm 48.5 50 3.00% Pass Low
1 Valid Cal. Gas 270 NOx 11/26/24 Mid CC349049 05/25/29 P1 ppm 110.733 112.2 1.30% Pass Mid
1 Valid Cal. Gas 270 NOx 11/26/24 High CC119249 08/30/32 P1 ppm 180.533 180.5 0.00% Pass High
1 Valid Cal. Gas 270 O2 11/26/24 Low XC024742B 06/21/31 P1 ppm 6.3 6.3 0.00% Pass Low
1 Valid Cal. Gas 270 O2 11/26/24 Mid CC204204 06/20/31 P1 ppm 13.6 13.6 0.00% Pass Mid
1 Valid Cal. Gas 270 O2 11/26/24 High CC467192 07/08/32 P1 ppm 21 20.9 0.50% Pass High
1 Valid Cal. Gas 270 NOx 11/26/24 Low CC469972 09/20/29 P1 ppm 49.433 50.3 1.70% Pass Low
1 Valid Cal. Gas 270 NOx 11/26/24 Mid CC268514 05/25/29 P1 ppm 112.3 111.5 0.70% Pass Mid
1 Valid Cal. Gas 270 NOx 11/26/24 High CC334400 07/10/32 P1 ppm 182.5 179.1 1.90% Pass High
1 Valid Cal. Gas 270 O2 11/26/24 Low EB0081623 05/23/30 P1 ppm 6.2 6.3 2% Pass Low
1 Valid Cal. Gas 270 O2 11/26/24 Mid CC326478 06/20/31 P1 ppm 13.8 13.9 1% Pass Mid
1 Valid Cal. Gas 270 O2 11/26/24 High CC206561 04/22/32 P1 ppm 20.733 20.8 0% Pass High
1 Valid Cal. Gas 270 NOx 11/26/24 Low CC476102 09/20/29 P1 ppm 48.933 50.2 2.50% Pass Low
1 Valid Cal. Gas 270 NOx 11/26/24 Mid CC460233 05/25/29 P1 ppm 113.367 112.6 0.70% Pass Mid
1 Valid Cal. Gas 270 NOx 11/26/24 High CC58939 08/30/32 P1 ppm 181.6 177.8 2.10% Pass High
1 Valid Cal. Gas 270 O2 11/26/24 Low EB0141694 05/23/30 P1 ppm 6.5 6.3 3.20% Pass Low
1 Valid Cal. Gas 270 O2 11/26/24 Mid CC333412 05/01/25 P1 ppm 13.7 13.6 0.70% Pass Mid
1 Valid Cal. Gas 270 O2 11/26/24 High ALM019604 04/22/32 P1 ppm 21 20.8 1.00% Pass High
1 Valid Cal. Gas 270 NOx 11/26/24 Low CC445198 05/31/30 P1 ppm 49.2 50.2 2.00% Pass Low
1 Valid Cal. Gas 270 NOx 11/26/24 Mid CC450693 05/25/29 P1 ppm 112.7 112.8 0.10% Pass Mid
1 Valid Cal. Gas 270 NOx 11/26/24 High CC47437 04/22/32 P1 ppm 181.1 180 0.60% Pass High
1 Valid Cal. Gas 270 O2 11/26/24 Low EB0141310 05/23/30 P1 ppm 6.4 6.3 1.60% Pass Low
1 Valid Cal. Gas 270 O2 11/26/24 Mid CC734231 06/20/31 P1 ppm 14 13.9 0.70% Pass Mid
1 Valid Cal. Gas 270 O2 11/26/24 High ALM056342 07/08/32 P1 ppm 21.1 20.9 1.00% Pass High
1 270 0 01/00/00 0 0 01/00/00 0 0 0 0 0.00% 0 0
1
Type Code 210
(Pollutant Concentration
Exceeded Span of CEM)
Type Code Channel Start Date Start Time End Date End Time Hours
1 0 210 0 1/0/00 0:00 1/0/00 0:00
1
1 None Reported
1 0 TC 220 Hours 71.12 TC 220 Hours 0.00 TC 230 Hours 0.00 Events 0.00 Hours 0.00 Events 0.00 0.00
1 72.00 TC 300 Hours 0.88 FALSE
None Reported None Reported None Reported None Reported None Reported None Reported
3
3
3
4
4
4
4
5
5
5
5
5
5
0
Point Source
Point Source
Yes
Type Code 550
(Changes in Operation in
Control Equipment When
CEM Data Not Available)
Type Code 500
(Boiler Operating Days
w/o 18 Hours of Data)
Type Code 450
(Data Excluded)
Type Code 210
(Pollutant Concentration
Exceeded Span of CEM)
Type Code 220
(Monitor Outage
During Point Source Operation)
Type Code 230
(Manual Sample - Alternate
Sampling During Monitor
Outage)
Type Code 240
(CEM Modifications)
Type Code 530
(Excess Emissions During
Emergency Conditions)
3
4
4
1
2
2
2
2
1
1
1
1
1
3
3
2
2
0
West Valley Pwr EER 4Q2024
Relative Accuracy Overview
Point Source Channel
Date of Most
Current
RATA
Date of
Preceding
RATA
Months Between
RATA's
Units
Measured CEM Value Reference Method
Value
Relative
Accuracy Pass/ Fail 2024
1 NOx 06/18/24 06/13/23 12 ppmv 3.5 3.30 0.21% Pass
2 NOx 06/19/24 06/14/23 12 ppmv 3.6 3.10 0.59% Pass
3 NOx 06/20/24 06/15/23 12 ppmv 3.5 3.50 0.11% Pass
4 NOx 06/21/24 06/16/23 12 ppmv 3.5 3.70 0.29% Pass
5 NOx 06/17/24 06/12/23 12 ppmv 3.5 3.60 0.33% Pass
1 NOx 06/18/24 06/13/23 12 lb/hr 4.6 4.40 5.76% Pass
2 NOx 06/19/24 06/14/23 12 lb/hr 4.7 4.20 17.26% Pass
3 NOx 06/20/24 06/15/23 12 lb/hr 4.8 4.70 1.85% Pass
4 NOx 06/21/24 06/16/23 12 lb/hr 4.5 4.90 9.20% Pass
5 NOx 06/17/24 06/12/23 12 lb/hr 4.9 5.00 10.21% Pass
1 NOx 06/18/24 06/13/23 12 lb/mmBtu 0.013 0.01 0.00% Pass
2 NOx 06/19/24 06/14/23 12 lb/mmBtu 0.013 0.01 0.20% Pass
3 NOx 06/20/24 06/15/23 12 lb/mmBtu 0.013 0.01 0.00% Pass
4 NOx 06/21/24 06/16/23 12 lb/mmBtu 0.013 0.01 0.10% Pass
5 NOx 06/17/24 06/12/23 12 lb/mmBtu 0.013 0.01 0.10% Pass
1 CO 06/18/24 06/13/23 12 ppmv 1.8 2.50 78.00% Pass
2 CO 06/19/24 06/14/23 12 ppmv 2.3 3.10 91.00% Pass
3 CO 06/20/24 06/15/23 12 ppmv 1.8 2.50 79.00% Pass
4 CO 06/21/24 06/16/23 12 ppmv 2.9 2.00 97.00% Pass
5 CO 06/17/24 06/12/23 12 ppmv 1.7 2.70 151.00% Pass
1 O2 06/18/24 06/13/23 12 percent 15 15.10 0.74% Pass
2 O2 06/19/24 06/14/23 12 percent 15 15.00 0.00% Pass
3 O2 06/20/24 06/15/23 12 percent 14.9 14.90 0.34% Pass
4 O2 06/21/24 06/16/23 12 percent 14.9 15.00 0.57% Pass
5 O2 06/17/24 06/12/23 12 percent 15 15.00 0.58% Pass
*
NSPS CGA Fourth 2024
Audit Gas Ranges Audit Gas Ranges
AP1 Low AP2 Low AP1 High AP2 High
1 CO 11/26/24 200 50.1 40 to 60
1 CO 11/26/24 200 110.6 100 to 120
2 CO 11/26/24 200 51 40 to 60
2 CO 11/26/24 200 111.1 100 to 120
3 CO 11/26/24 200 50.4 40 to 60
3 CO 11/26/24 200 110.8 100 to 120
4 CO 11/26/24 200 50.3 40 to 60
4 CO 11/26/24 200 110.6 100 to 120
5 CO 11/26/24 200 50 40 to 60
5 CO 11/26/24 200 111 100 to 120
*
Acid Rain Audit Linearity Fourth 2024
Low Span Gas Ranges High Span Gas Ranges
Low Mid High Low Mid High
1 NOx 11/26/24 200 50.9 40 to 60
1 NOx 11/26/24 200 109.1 100 to 120
1 NOx 11/26/24 200 178.6 40 to 60 100 to 120 160 to 200
1 O2 11/26/24 25 6.3 5 to 7.5
1 O2 11/26/24 25 13.6 12.5 to 15
1 O2 11/26/24 25 20.9 5 to 7.5 12.5 to 15 20 to 25
2 NOx 11/26/24 200 50 40 to 60
2 NOx 11/26/24 200 112.2 100 to 120
2 NOx 11/26/24 200 180.5 40 to 60 100 to 120 160 to 200
2 O2 11/26/24 25 6.3 5 to 7.5
2 O2 11/26/24 25 13.6 12.5 to 15
2 O2 11/26/24 25 20.9 5 to 7.5 12.5 to 15 20 to 25
3 NOx 11/26/24 200 50.3 40 to 60
3 NOx 11/26/24 200 111.5 100 to 120
3 NOx 11/26/24 200 179.1 40 to 60 100 to 120 160 to 200
3 O2 11/26/24 25 6.3 5 to 7.5
3 O2 11/26/24 25 13.9 12.5 to 15
3 O2 11/26/24 25 20.8 5 to 7.5 12.5 to 15 20 to 25
4 NOx 11/26/24 200 50.2 40 to 60
4 NOx 11/26/24 200 112.6 100 to 120
4 NOx 11/26/24 200 177.8 40 to 60 100 to 120 160 to 200
4 O2 11/26/24 25 6.3 5 to 7.5
4 O2 11/26/24 25 13.6 12.5 to 15
4 O2 11/26/24 25 20.8 5 to 7.5 12.5 to 15 20 to 25
5 NOx 11/26/24 200 50.2 40 to 60
5 NOx 11/26/24 200 112.8 100 to 120
5 NOx 11/26/24 200 180 40 to 60 100 to 120 160 to 200
5 O2 11/26/24 25 6.3 5 to 7.5
5 O2 11/26/24 25 13.9 12.5 to 15
5 O2 11/26/24 25 20.9 5 to 7.5 12.5 to 15 20 to 25
Audit Gas Used
Point Source Channel Audit Date Low Span
Point Source Channel Audit Date Low Span
Audit Gas Used High Span Audit Gas Used
High SpanAudit Gas Used
West Valley Pwr EER 4Q2024
Monitoring Information TC 210, 230, & 240
Type Code 210
(Pollutant Concentration Exceeded Span of CEM) - 500 (All)
*
Sum of Hours Column Labels
Row Labels (blank) Grand Total
(blank)0 0
Grand Total 0 0
*
Type Code 230
(Manual Sample - Alternate Sampling During Monitor Outage) - 500 (All)
*
Sum of Hours Column Labels
Row Labels (blank) Grand Total
(blank)0 0
Grand Total 0 0
*
Type Code 240
(CEM Modifications) - 100 (All)
*
Count of Channel Column Labels
Row Labels (blank) Grand Total
(blank)
(blank)
Grand Total
West Valley Pwr EER 4Q2024
Type Code 220
(Monitor Outage During Point Source Operation) - 600 (All)
*
Sum of Hours Column Labels
Row Labels 724 723 725 Grand Total
1
CO
Maintenance 4.95 4.95
Daily QA Calibrations 2.95 2.95
NOx
Maintenance 5.97 5.97
Daily QA Calibrations 2.95 2.95
Failed calibration test- recalibration 5.98 5.98
CALIBRATION FAILURE DUE TO EXCESSIVE DRIFT (>OCC THRESHOLD)4.98 4.98
O2
Maintenance 5.93 5.93
Daily QA Calibrations 0.98 0.98
2
CO
Daily QA Calibrations 0.98 0.98
No Action 0.98 0.98
NOx
Daily QA Calibrations 0.98 0.98
No Action 0.98 0.98
O2
Daily calibration not performed in time 1.98 1.98
3
CO
Daily QA Calibrations 4.92 4.92
NOx
Daily QA Calibrations 4.92 4.92
O2
Daily QA Calibrations 0.98 0.98
4
CO
Daily QA Calibrations 4.92 4.92
NOx
Daily QA Calibrations 4.92 4.92
O2
Daily QA Calibrations 0.98 0.98
5
CO
Maintenance 0.98 0.98
Daily QA Calibrations 1.97 1.97
NOx
Maintenance 0.98 0.98
Daily QA Calibrations 1.97 1.97
O2
Maintenance 0.98 0.98
Daily QA Calibrations 1.98 1.98
Grand Total 32.75 36.40 1.97 71.12
West Valley Pwr EER 4Q2024
NOx *
NOx Type Code 420 (NOx) - 6000 (All)
NOx *
NOx Count of Magnitude of Emissions Column Labels
NOx Row Labels Grand Total
NOx Grand Total
CO *
CO Type Code 440
(CO) - 6000 (All)
CO *
CO Count of Magnitude of Emissions Column Labels
CO Row Labels Grand Total
CO Grand Total
O2 *
O2 Type Code 470
(TRS as O2) - 6000 (All)
O2 *
O2 Count of Magnitude of Emissions Column Labels
O2 Row Labels Grand Total
O2 Grand Total
West Valley Pwr EER 4Q2024
Type Code 500
Before February 28, 2005 (Boiler Operating Days w/o 18 Hours of
Data) After February 28, 2005 (90% Operating Hours For each 30 BOD)
- 500
(All)
*
Count of Channel Column Labels
Row Labels Grand Total
Grand Total
*
Type Code 510
(F-factor, Equations & Conversion Factors) - 500 (All)
Count of F-factor Column Labels
Row Labels Grand Total
Grand Total
*
Type Code 520
(Minimum Data Not
Obtained <22/30 BODs) - 500
(All)
Count of Channel Column Labels
Row Labels Grand Total
Grand Total
*
Type Code 530
(Excess Emissions During Emergency Conditions) - 500 (All)
Count of Date Column Labels
Row Labels Grand Total
Grand Total
*
Type Code 540
(Fuel Pre-treatment Credit SO2) - 500 (All)
Count of Date Column Labels
Row Labels Grand Total
Grand Total
*
TypeCode 550
(Changes in Operation in Control Equipment When CEM Data Not
Available) - 500
(All)
Column Labels
Row Labels Grand Total
Grand Total