HomeMy WebLinkAboutDAQ-2024-004288
1
DAQC-908-23
Site ID 10892 (B5)
MEMORANDUM
TO: FILE – ST. GEORGE CITY POWER – Millcreek Turbine
THROUGH: Harold Burge, Major Source Compliance Section Manager
FROM: Rob Leishman, Environmental Scientist
DATE: August 23, 2023
SUBJECT: St. George City Power – Millcreek Turbine, Major, NSPS, HAPs, Title IV, and
Title V, Washington County, FRS # UT00000049005300011
INSPECTION TYPE: State Electronic Data Report (SEDR) Review
REVIEW DATE: August 23, 2023
SOURCE LOCATION: St. George/Washington County
SOURCE CONTACT: Brian Dial – 435-627-4000
APPLICABLE
REGULATIONS: Title V Operating Permit
PERMIT NUMBER: 5300011005
DATE OF PERMIT: April 29, 2019
Date of Last Revision: April 29, 2019
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 St. George City
Power’s Millcreek Turbine’s relative accuracy performance specification
test review memorandum.
1 8 2
2
SEDR Review:
Second Quarter 2023
% 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
MC-2 880 O2 100% 04/17/23 MC-2 CO 0.00 5.21 lb/hr - 1-
Hour Avg
MC-2 880 CO 100% 04/17/23 04/06/23 MC-2 CO 0.00 6 ppmvdc - 1-
Hour Avg
MC-2 880 NOx 100% 04/17/23 04/17/23 04/06/23 MC-2 NOx 0.00
1.2
lb/MWHour -
30-Day RA
MC-2 NOx 0.00
1.2
lb/MWHour -
4-Hour RA
MC-2 NOx 0.00
46 lb/hr - 1-
Hour Avg
(SU/SD)
MC-2 NOx 0.00 3.6 lb/hr - 30-
Day RA
MC-2 NOx 0.00 25 ppmvdc - 1-
Hour Avg
MC-2 NOx 0.00 2.5 ppmvdc -
30-Day RA
MC-2 NOx 0.00 25 ppmvdc -
30-Day RA
Excess Emission Report - Hourly Summary
Point
Source Channel
Startup
&
Shutdown
Control
Equipment
Problems
Process
Problems
Other
Known
Causes
Unknown
Causes
Emission
Limit
MC-2 CO 0 0 0 0 0 5.21 lb/hr - 1-Hour Avg
MC-2 CO 0 0 0 0 0 6 ppmvdc - 1-Hour Avg
MC-2 NOx 0 0 0 0 0 1.2 lb/MWHour - 30-Day RA
MC-2 NOx 0 0 0 0 0 1.2 lb/MWHour - 4-Hour RA
MC-2 NOx 0 0 0 0 0 46 lb/hr - 1-Hour Avg
(SU/SD)
MC-2 NOx 0 0 0 0 0 3.6 lb/hr - 30-Day RA
MC-2 NOx 0 0 0 0 0 25 ppmvdc - 1-Hour Avg
MC-2 NOx 0 0 0 0 0 2.5 ppmvdc - 30-Day RA
MC-2 NOx 0 0 0 0 0 25 ppmvdc - 30-Day RA
3
CMS Performance Summary - Hourly Summary
Point
Source Channel Monitor
Malfunction
Non-monitor
Malfunction
QA
Calibrations
Other
Known
Causes
Unknown
Causes
MC-2 O2 0 0 0 0 0
MC-2 CO 0 0 0 0 0
MC-2 NOx 0 0 0 0 0
Pollutant Concentration
Exceeded Span of CEM
Monitor Outage During
Point Source Operation
Alternate
Sampling CEM Modifications
0 Hours 0 Hours 0 Hours 0 Events
SOURCE INSPECTION
SUMMARY EVALUATION: St. George City Power’s Millcreek Turbine maintains its CEMS as
required in R307-170 and 40 CFR 60.13.
CURRENT
RECOMMENDATIONS: All deviations appear to be a result of breakdown or process related
problems that do not warrant issuing a violation. 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.”
St. George City Power’s Millcreek Turbine was in compliance during
this reporting period. The monitoring system meets the performance
standards of 40 CFR 60, Appendix B Performance Specifications. No
further enforcement actions are recommended.
St. George City Power’s Millcreek Turbine acid rain monitoring system
meets the performance standards of 40 CFR 75 Acid Rain Performance
Specifications.
HIGH PRIORITY
VIOLATOR (HPV): No.
RECOMMENDATION
FOR NEXT INSPECTION: Check DAS for daily zero and span drift.
ATTACHMENTS: Excel spreadsheet review.
JVL
?nt
Geost.r9e
THE BRIGHTER SIDE UTAH DEPARTMENT OF
ENVTRoNMENTAL QUAUTY Jdy 26,2023
RE: State Electronic Data Report2d Quarter Millcreek M.C-2
In accordance with Title V Permit #5300011005 and Utah Administrative Code (UAC) R307-170-9, St.
George has submittedits2023 2nd quarter state electronic data report for Millcreek unit MC-2.
The 2nd quarter electronic report was submitted via email from Melissa Armer to Rob Leishman on July
26,2023.
In accordance with R307-170-9(9), under penalties of law all information contained in this report is
truthful and accurate, and is a complete record of all monitoring related events that occurred during the
Mr. Bryce Bird
Division Director
Utah Division of Air Quality
P.O. Box 144820
Salt Lake ciry, utah 84114-4820
FROM: St. George City Power, Site ID #10892
Enerey Services Director
Title of Responsible Official
In accordance with Operating Permit provision I.K and
and belief formed after reasonable inquiry, I certiff that
JUL ? ?, 2A?_3
DIVISION OF AIR QUALITY
UAC R307-415-5d, and based on information
the statements and information in this document
Energy Services Director
Title of Responsible Official
cc: Melissa Armer, Trinity Consultants, Inc.
CITY OF ST. GEORGE
le Official for the Source
rate, and complete.
Official for the Source
435-627-4000 I IZS e. 2OO N. - St. George,UT 84770 I sgcity.org
St George MC-2 EER 2Q2023
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 Bryan Dial 05300066 435-627-4800 Melissa Armer
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 2 2023 880
1 110 0 0 0
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 Teledyne M300 2156 10 1000 4/30/2010 Stack
1 200 NOx Teledyne M200EM 456 8 150 4/30/2010 Stack
1 200 O2 Teledyne M300 2156 0 25 4/30/2010 Stack
1 200 0 0 0 0 0 0 1/0/1900 0
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 CO 0 0.00% 0 0 0 0 0 5.21 lb/hr 1-Hour Avg
1 TRUE 310 CO 0 0.00% 0 0 0 0 0 6 ppmvdc 1-Hour Avg
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 1.2 lb/MWHour 30-Day RA
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 1.2 lb/MWHour 4-Hour RA
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 46 lb/hr 1-Hour Avg (SU/SD)
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 3.6 lb/hr 30-Day RA
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 25 ppmvdc 1-Hour Avg
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 2.5 ppmvdc 30-Day RA
1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 25 ppmvdc 30-Day RA
1 310 0 0 0 0 0 0 0 0 0
1 310 0 0 0 0 0 0 0 0 0
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 880 0.00% 0 0 0 0 0 0
1 TRUE 300 CO 880 0.00% 0 0 0 0 0 0
1 TRUE 300 NOx 880 0.00% 0 0 0 0 0 0
1 300 0 0 0 0 0 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
1 364 Days 250 CO 04/06/23 04/07/22 12 ppmvdc 2.599 2.5 274.00% Pass
1 364 Days 250 CO 04/06/23 04/07/22 12 lb/hr 2.075 1.91 416.00% Pass
1 364 Days 250 NOx 04/06/23 04/07/22 12 lb/mmBtu 0.0055 0.005 226.00% 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 04/17/23 Low EB0141317 01/05/25 0 ppm 3.09 2.348 3160.00% Pass LOW
1 Valid Cal. Gas 260 CO 04/17/23 Mid EB0141258 12/27/24 0 ppm 5.645 5.449 360.00% Pass LOW
1 Valid Cal. Gas 260 CO 04/17/23 Low CC741774 01/17/26 0 ppm 260.462 249.7 430.00% Pass HIGH
1 Valid Cal. Gas 260 CO 04/17/23 Mid CC280108 03/03/28 0 ppm 564.093 552.2 220.00% Pass HIGH
1 Valid Cal. Gas 260 NOx 04/17/23 Low EB0141317 01/05/25 0 ppm 2.069 2.055 70.00% Pass LOW
1 Valid Cal. Gas 260 NOx 04/17/23 Mid EB0141258 12/27/24 0 ppm 4.761 4.614 320.00% Pass LOW
1 Valid Cal. Gas 260 O2 04/17/23 Low CC408143 02/05/27 0 % 6.022 6.014 10.00% Pass LOW
1 Valid Cal. Gas 260 O2 04/17/23 Mid CC495424 02/04/27 0 % 11.023 11.04 20.00% Pass HIGH
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
Point Source
Point Source
Point Source
Point Source
Point Source
MC-2
0
0
MC-2
MC-2
MC-2
MC-2
MC-2
0
0
0
0
MC-2
MC-2
MC-2
St. George City Power
0
MC-2
MC-2
MC-2
0
0
MC-2
MC-2
MC-2
MC-2
0
MC-2
MC-2
MC-2
MC-2
0
MC-2
MC-2
MC-2
MC-2
MC-2
MC-2
MC-2
St George MC-2 EER 2Q2023
1 Valid Cal. Gas 270 NOx 04/17/23 Low CC277636 01/17/26 0 ppm 36.54 37.74 320.00% Pass HIGH
1 Valid Cal. Gas 270 NOx 04/17/23 Mid CC280108 03/03/28 0 ppm 82.24 83.4 140.00% Pass HIGH
1 Valid Cal. Gas 270 NOx 04/17/23 High ALM018021 11/04/30 0 ppm 135.55 135.6 0.00% Pass HIGH
1 270 0 01/00/00 0 0 01/00/00 0 0 0 0 0% 0 0
1 270 0 01/00/00 0 0 01/00/00 0 0 0 0 0% 0 0
1 270 0 01/00/00 0 0 01/00/00 0 0 0 0 0% 0 0
1 270 0 01/00/00 0 0 01/00/00 0 0 0 0 0.00% 0 0
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 0.00 TC 220 Hours 0.00 TC 230 Hours 0.00 Events 0.00 Hours 0.00 Events 0.00 0.00
1 0.00 TC 300 Hours 0.00 TRUE
None Reported None Reported None Reported None Reported None Reported None Reported
Point Source
None Reported
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)
0
0
0
MC-2
MC-2
MC-2
0
0
0
St George MC-2 EER 2Q2023
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 2023
MC-2 CO 04/06/23 04/07/22 12 ppmvdc 2.599 2.50 274.00% Pass
MC-2 CO 04/06/23 04/07/22 12 lb/hr 2.075 1.91 416.00% Pass
MC-2 NOx 04/06/23 04/07/22 12 lb/mmBtu 0.0055 0.01 226.00% Pass
*
NSPS CGA Second 2023
Audit Gas Ranges Audit Gas Ranges
AP1 Low AP2 Low AP1 High AP2 High
MC-2 CO 4/17/23 10 2.348 2 to 3
MC-2 CO 4/17/23 10 5.449 5 to 6
MC-2 CO 4/17/23 1000 249.7 200 to 300
MC-2 CO 4/17/23 1000 552.2 500 to 600
MC-2 NOx 4/17/23 8 2.055 1.6 to 2.4
MC-2 NOx 4/17/23 8 4.614 4 to 4.8
MC-2 O2 4/17/23 25 6.014 4 to 6
MC-2 O2 4/17/23 25 11.04 8 to 12
*
Acid Rain Audit Linearity Second 2023
Low Span Gas Ranges High Span Gas Ranges
Low Mid High Low Mid High
MC-2 NOx 4/17/23 150 37.74 30 to 45
MC-2 NOx 4/17/23 150 83.4 75 to 90
MC-2 NOx 4/17/23 150 135.6 120 to 150
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
St George MC-2 EER 2Q2023
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
St George MC-2 EER 2Q2023
Type Code 220
(Monitor Outage During Point Source Operation) - 600 (All)
*
Sum of Hours Column Labels
Row Labels (blank) Grand Total
(blank)
(blank)
0 0
Grand Total 0 0
St George MC-2 EER 2Q2023
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
NOx d *
NOx d Type Code 421 (Daily NOx Emissions) - 500 (All)
NOx d *
NOx d Count of Reason Code Column Labels
NOx d Row Labels Grand Total
NOx d 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
St George MC-2 EER 2Q2023
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 NOx CO Grand Total
MC-2
8710 1 1 2
Grand Total 1 1 2
*
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