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DAQ-2025-002252
1 DAQC-384-25 Site ID 10335 (B5) MEMORANDUM TO: FILE – TESORO REFINING AND MARKETING COMPANY LLC THROUGH: Harold Burge, Major Source Compliance Section Manager FROM: Rob Leishman, Environmental Scientist DATE: April 21, 2025 SUBJECT: Tesoro Refining and Marketing Company (Tesoro), Major, NSPS, Title V, Salt Lake County, FRS # UT0000004903500004 INSPECTION TYPE: State Electronic Data Report (SEDR) Review REVIEW DATE: April 21, 2025 SOURCE LOCATION: Salt Lake City/Salt Lake County SOURCE CONTACT: Rheannon Schaefer – 801-366-2033 APPLICABLE REGULATIONS: April 3, 1996 A.O. – DAQE-378-96 January 11, 2018 – DAQE-AN103350075-18 – Approval Order 40 CFR 60.8, 40 CFR 60.13, and 40 CFR 60 Appendix A 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 Tesoro’s relative accuracy performance specification test review memorandum. SEDR REVIEW: First Quarter 2025 % 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 REGEN 2159 CO 100% 02/12/25 02/26/25 NORTH FLARE H2S 0.00 162 ppm - 3-Hr Rolling Avg REGEN 2159 CO2 100% 02/12/25 02/26/25 SOUTH FLARE H2S 0.00 162 ppm - 3-Hr Rolling Avg REGEN 2159 CO2 100% 02/12/25 02/26/25 COB BYPASS CO 0.00 500 % - 1-hour average 1 8 2 2 REGEN 2159 CO 100% 02/12/25 02/26/25 WGS CO 0.00 500 ppm - 1 hour per NSPS Ja & CD REGEN 2159 O2 100% 02/12/25 02/26/25 WGS CO 0.00 500 ppm - 1 hour per NSPS Ja & CD REGEN 2159 O2 100% 02/12/25 02/26/25 WGS NOx 0.00 20 ppm - 7 Day Rolling Average per NSPS CD NORTH FLARE 2159 BTU 97% WGS NOx 0.00 80 ppm - 7 Day Rolling Average per NSPS Ja NORTH FLARE 2159 Flow 100% WGS NOx 0.00 20 ppm - 7 Day Rolling Average per NSPS CD NORTH FLARE 2159 H2S 100% 01/14/25 08/21/24 WGS NOx 0.00 80 ppm - 7 Day Rolling Average per NSPS Ja NORTH FLARE 2159 TS 100% 01/16/25 10/13/15 WGS SO2 0.00 18 ppm - 7 Day Rolling Average per CD NORTH FLARE 2159 TS 100% 01/16/25 10/13/15 WGS SO2 0.00 50 ppm - 7 Day Rolling Average per NSPSP JA NORTH FLARE 2159 TS 100% 01/16/25 10/13/15 WGS SO2 0.00 18 ppm - 7 Day Rolling Average per CD SOUTH FLARE 2159 BTU 100% WGS SO2 0.00 50 ppm - 7 Day Rolling Average per NSPSP JA SOUTH FLARE 2159 Flow 100% SRU- Incinerator O2 0.00 2.1 % - 24-Hr Avg SOUTH FLARE 2159 H2S 100% 01/21/25 08/20/24 SRU- Incinerator SO2 0.00 1.68 Tons / Day - 24-Hr Avg SOUTH FLARE 2159 TS 99% 01/23/25 10/07/15 V917 H2S 4.00 162 ppm - 3- HR Rolling Avg SOUTH FLARE 2159 TS 99% 01/23/25 10/07/15 BCLR VOC 0.00 11000 ppm - 3- Hr Rolling Avg SOUTH FLARE 2159 TS 99% 01/23/25 10/07/15 COGEN H2S 0.00 162 ppm - 3-Hr Rolling Avg SRU FLARE 2159 Flow 100% COGEN H2S 0.00 162 ppm - 3-Hr Rolling Avg SRU FLARE 2159 TS 100% 03/05/25 10/09/15 3 SRU FLARE 2159 TS 100% 03/05/25 10/09/15 SRU FLARE 2159 TS 100% 03/05/25 10/09/15 COB BYPASS 0 CO Point source not operated 02/19/25 02/25/25 COB BYPASS 0 CO Point source not operated 02/19/25 02/25/25 COB BYPASS 0 NOx Point source not operated 02/19/25 02/25/25 COB BYPASS 0 NOx Point source not operated 02/19/25 02/25/25 COB BYPASS 0 NOx Point source not operated 02/19/25 02/25/25 COB BYPASS 0 NOx Point source not operated 02/19/25 02/25/25 COB BYPASS 0 O2 Point source not operated 02/20/25 02/25/25 COB BYPASS 0 O2 Point source not operated 02/20/25 02/25/25 COB BYPASS 0 SO2 Point source not operated 02/20/25 02/25/25 COB BYPASS 0 SO2 Point source not operated 02/20/25 02/25/25 COB BYPASS 0 SO2 Point source not operated 02/20/25 02/25/25 COB BYPASS 0 SO2 Point source not operated 02/20/25 02/25/25 WGS 2159 CO 100% 02/24/25 02/19/25 WGS 2159 NOx 98% 02/24/25 02/19/25 4 WGS 2159 NOx 100% 02/24/25 02/19/25 WGS 2159 O2 100% 02/24/25 02/19/25 WGS 2159 O2 100% 02/24/25 02/19/25 WGS 2159 SGF 100% 02/19/25 WGS 2159 SGF 100% 02/19/25 WGS 2159 SO2 100% 02/24/25 02/19/25 WGS 2159 SO2 100% 02/24/25 02/19/25 SRU- Incinerator 2159 O2 96% 02/19/25 08/29/24 SRU- Incinerator 2159 SO2 98% 02/19/25 08/29/24 SRU- Incinerator 2159 SO2 97% 02/19/25 08/29/24 V917 2159 H2S 100% 02/21/25 08/22/24 BCLR 0 VOC Point source not operated 06/24/19 COGEN 2159 H2S 100% 02/06/25 08/27/24 COGEN 2159 H2S 100% 02/06/25 08/27/24 Excess Emission Report - Hourly Summary Point Source Channel Startup & Shutdown Control Equipment Problems Process Problems Other Known Causes Unknown Causes Emission Limit NORTH FLARE H2S 0 0 0 0 0 162 ppm - 3-Hr Rolling Avg SOUTH FLARE H2S 0 0 0 0 0 162 ppm - 3-Hr Rolling Avg COB BYPASS CO 0 0 0 0 0 500 % - 1-hour average WGS CO 0 0 0 0 0 500 ppm - 1 hour per NSPS Ja & CD WGS CO 0 0 0 0 0 500 ppm - 1 hour per NSPS Ja & CD WGS NOx 0 0 0 0 0 20 ppm - 7 Day Rolling Average per NSPS CD WGS NOx 0 0 0 0 0 80 ppm - 7 Day Rolling Average per NSPS Ja WGS NOx 0 0 0 0 0 20 ppm - 7 Day Rolling Average per NSPS CD WGS NOx 0 0 0 0 0 80 ppm - 7 Day Rolling Average per NSPS Ja WGS SO2 0 0 0 0 0 18 ppm - 7 Day Rolling Average per CD WGS SO2 0 0 0 0 0 50 ppm - 7 Day Rolling Average per NSPSP JA WGS SO2 0 0 0 0 0 18 ppm - 7 Day Rolling Average per CD WGS SO2 0 0 0 0 0 50 ppm - 7 Day Rolling Average per NSPSP JA 5 SRU- Incinerator O2 0 0 0 0 0 2.1 % - 24-Hr Avg SRU- Incinerator SO2 0 0 0 0 0 1.68 Tons / Day - 24-Hr Avg V917 H2S 0 0 4 0 0 162 ppm - 3-HR Rolling Avg BCLR VOC 0 0 0 0 0 11000 ppm - 3-Hr Rolling Avg COGEN H2S 0 0 0 0 0 162 ppm - 3-Hr Rolling Avg COGEN H2S 0 0 0 0 0 162 ppm - 3-Hr Rolling Avg CMS Performance Summary - Hourly Summary Point Source Channel Monitor Malfunction Non-monitor Malfunction QA Calibrations Other Known Causes Unknown Causes REGEN CO 3 0 1 2 0 REGEN CO2 3 0 1 2 0 REGEN CO2 0 0 0 0 0 REGEN CO 0 0 0 0 0 REGEN O2 1 0 1 2 0 REGEN O2 0 0 0 0 0 NORTH FLARE BTU 43 0 11 17 0 NORTH FLARE Flow 0 0 0 0 0 NORTH FLARE H2S 0 0 0 0 0 NORTH FLARE TS 0 0 0 0 0 NORTH FLARE TS 0 0 0 0 0 NORTH FLARE TS 0 0 0 0 0 SOUTH FLARE BTU 0 0 9 0 0 SOUTH FLARE Flow 0 0 0 0 0 SOUTH FLARE H2S 0 0 0 0 0 SOUTH FLARE TS 31 0 0 0 0 SOUTH FLARE TS 31 0 0 0 0 SOUTH FLARE TS 31 0 0 0 0 SRU FLARE Flow 0 0 0 0 0 SRU FLARE TS 0 0 0 0 0 SRU FLARE TS 0 0 0 0 0 SRU FLARE TS 0 0 0 0 0 COB BYPASS CO 0 0 0 0 0 COB BYPASS CO 0 0 0 0 0 COB BYPASS NOx 0 0 0 0 0 COB BYPASS NOx 0 0 0 0 0 COB BYPASS NOx 0 0 0 0 0 6 COB BYPASS NOx 0 0 0 0 0 COB BYPASS O2 0 0 0 0 0 COB BYPASS O2 0 0 0 0 0 COB BYPASS SO2 0 0 0 0 0 COB BYPASS SO2 0 0 0 0 0 COB BYPASS SO2 0 0 0 0 0 COB BYPASS SO2 0 0 0 0 0 Pollutant Concentration Exceeded Span of CEM Monitor Outage During Point Source Operation Alternate Sampling CEM Modifications 1 Hours 465 Hours 0 Hours 0 Events SOURCE INSPECTION SUMMARY EVALUATION: Tesoro 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. Tesoro was in compliance during this reporting period. No further enforcement actions should be taken. Tesoro’s NSPS monitoring system meets the performance standards of 40 CFR 60, Appendix B Performance Specifications. HIGH PRIORITY VIOLATOR (HPV): No RECOMMENDATION FOR NEXT INSPECTION: 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. Tesoro Refinery EER 1Q2025 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 Contact1 100 Dean Anderson 03500004 801-366-2033 Rheannon Schaefer 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 Quarter1 110 1 2025 0 1 110 1 2025 0 1 110 1 2025 2159 1 110 1 2025 2159 1 110 1 2025 2159 1 110 1 2025 2159 1 110 1 2025 2159 1 110 1 2025 2159 1 110 1 2025 2159 1 110 1 2025 2159 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 Location1 200 VOC Zellweger Optima Plus 2108B2101 0 20000 6/1/2005 BLR 1 200 CO Horiba GI-761CU A: N203PGVV 0 1000 1/1/2018 COB Bypass Stack 1 200 CO Horiba GI-761CU B: Y4WE0JGY 0 1000 1/1/2018 COB Bypass Stack 1 200 NOx Horiba GI-761CU A: N203PGVV 0 1000 1/1/2018 COB Bypass Stack 1 200 NOx Horiba GI-761CU B: Y4WE0JGY 0 1000 1/1/2018 COB Bypass Stack 1 200 NOx Horiba GI-761CU A: N203PGVV 0 200 1/1/2018 COB Bypass Stack 1 200 NOx Horiba GI-761CU B: Y4WE0JGY 0 200 1/1/2018 COB Bypass Stack 1 200 O2 Horiba GI-761CU A: N203PGVV 0 25 1/1/2018 COB Bypass Stack 1 200 O2 Horiba GI-761CU B: Y4WE0JGY 0 25 1/1/2018 COB Bypass Stack 1 200 SO2 Horiba GI-761CU A: N203PGVV 0 1000 1/1/2018 COB Bypass Stack 1 200 SO2 Horiba GI-761CU B: Y4WE0JGY 0 1000 1/1/2018 COB Bypass Stack 1 200 SO2 Horiba GI-761CU A: N203PGVV 0 200 1/1/2018 COB Bypass Stack 1 200 SO2 Horiba GI-761CU B: Y4WE0JGY 0 200 1/1/2018 COB Bypass Stack 1 200 H2S Ametek 5100 102401103-1 0 300 4/19/2021 J-80 1 200 H2S Ametek 5100 102401103-2 0 300 4/19/2021 J-80 1 200 BTU Siemens MAXUM II TCD-GCSN: 300488954416100btu/scf 1500btu/scf 9/26/2015 North Flare Header 1 200 Flow General Electric (GE)Panametrics Dual Path GF686SN: 4048 0.1MSCFH 394MSCFH 9/11/2015 North Flare Header 1 200 H2S Siemens MAXUM II TCD SN: 300488954416100 300 9/28/2015 North Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 3004889544171015000 100000 9/26/2015 North Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 30048895441710450 20000 9/26/2015 North Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 3004889544171010 600 9/26/2015 North Flare Header 1 200 CO Horiba CMA 467H EASVUCN2 0 5 3/4/2014 FCC Reg. 1 200 CO Horiba CMA 467H XU2F2W0 0 5 3/4/2014 FCC Reg. 1 200 CO2 Horiba CMA 467H EASVUCN2 0 20 3/4/2014 COB 1 200 CO2 Horiba CMA 467H XU2F2W0 0 20 3/4/2014 COB 1 200 O2 Horiba CMA 467H EASVUCN2 0 5 3/4/2014 FCC Reg. 1 200 O2 Horiba CMA 467H XU2F2W0 0 5 3/4/2014 FCC Reg. 1 200 BTU Siemens MAXUM II TCD-GCSN: 300488954410600btu/scf 1500btu/scf 9/23/2015 South Flare Header 1 200 Flow General Electric (GE) General Electric (GE) SN: 4143 0.1MSCFH 394MSCFH 6/11/2015 South Flare Header 1 200 H2S Siemens MAXUM II TCD SN: 300488954410600 300 9/23/2015 South Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 3004889544141015000 100000 9/23/2015 South Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 30048895441410450 20000 9/23/2015 South Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 3004889544141010 600 9/23/2015 South Flare Header 1 200 Flow General Electric (GE) Panametrics Dual Path GF686SN: 4048 0.1MSCFH 394MSCFH 9/11/2015 SRU Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 3004889544151030000 1000000 10/7/2015 SRU Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 30048895441510900 40000 10/7/2015 SRU Flare Header 1 200 TS Siemens MAXUM II FID-GCSN: 3004889544151020 1200 10/7/2015 SRU Flare Header 1 200 O2 Servomex 1440C110270110 1420-588/1415C-5890 25.1 10/29/2015 Inc. Stack 1 200 SGF Energy & Environmental Measurement CorpCustom made NA 0 0 5/13/2014 Inc. Stack 1 200 SO2 Ametek 910 ZC-910-10701-1 0 14000 10/29/2015 Inc. Stack 1 200 SO2 Ametek 910 ZC-910-10701-1 0 1000 10/29/2015 Inc. Stack 1 200 BTU Siemens MAXUM II TD-GC SN: 300488535810600btu/scf 1500btu/scf 10/19/2015 V-917 1 200 H2S Siemens MAXUM II TCD 3.00489E+13 0 300 10/13/2015 V-917 1 200 CO Horiba 914 #1: NP7X7084 0 1000 1/1/2018 Wet Gas Scrubber Stack 1 200 CO Horiba 914 #2: UG7U000B 0 1000 1/1/2018 Wet Gas Scrubber Stack 1 200 NOx CAI 700 #1: 1908029 0 200 1/1/2018 Wet Gas Scrubber Stack 1 200 NOx CAI 700 #2: 1908030 0 200 1/1/2018 Wet Gas Scrubber Stack 1 200 O2 CAI 700 #1: 1908029 0 10 1/1/2018 Wet Gas Scrubber Stack 1 200 O2 CAI 700 #2: 1908030 0 10 1/1/2018 Wet Gas Scrubber Stack 1 200 SGF EMRC 0 #1: 0scf/min 200000scf/min 1/1/2018 Wet Gas Scrubber Stack 1 200 SGF EMRC 0 #2: 0scf/min 200000scf/min 1/1/2018 Wet Gas Scrubber Stack 1 200 SO2 Teledyne T100H 429 0 200 1/1/2018 Wet Gas Scrubber Stack 1 200 SO2 Teledyne T100H 428 0 200 1/1/2018 Wet Gas Scrubber Stack 1 200 0 0 0 0 0 0 1/0/1900 0 Tesoro Refining and Marketing 0 BCLR COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COGEN COGEN NORTH FLARE SRU FLARE SRU FLARE SRU-Incinerator SRU-Incinerator SRU-Incinerator SOUTH FLARE SOUTH FLARE SRU FLARE SRU FLARE REGEN SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE REGEN REGEN REGEN REGEN REGEN NORTH FLARE NORTH FLARE BCLR COB BYPASS COGEN NORTH FLARE REGEN SOUTH FLARE SRU FLARE SRU-Incinerator V917 WGS 0 NORTH FLARE NORTH FLARE NORTH FLARE WGS WGS WGS WGS WGS SRU-Incinerator V917 V917 WGS WGS WGS WGS WGS 0 Tesoro Refinery EER 1Q2025 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 Period1 TRUE 310 H2S 0 0.00% 0 0 0 0 0 162 ppm 3-Hr Rolling Avg 1 TRUE 310 H2S 0 0.00% 0 0 0 0 0 162 ppm 3-Hr Rolling Avg 1 Point source not operated 310 CO 0 0.00% 0 0 0 0 0 500 % 1 hour average 1 TRUE 310 CO 0 0.00% 0 0 0 0 0 500 ppm 1 hour per NSPS Ja & CD 1 TRUE 310 CO 0 0.00% 0 0 0 0 0 500 ppm 1 hour per NSPS Ja & CD 1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 20 ppm 7 Day Rolling Average per NSPS CD 1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 80 ppm 7 Day Rolling Average per NSPS Ja 1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 20 ppm 7 Day Rolling Average per NSPS CD 1 TRUE 310 NOx 0 0.00% 0 0 0 0 0 80 ppm 7 Day Rolling Average per NSPS Ja 1 TRUE 310 SO2 0 0.00% 0 0 0 0 0 18 ppm 7 Day Rolling Average per CD 1 TRUE 310 SO2 0 0.00% 0 0 0 0 0 50 ppm 7 Day Rolling Average per NSPSP JA 1 TRUE 310 SO2 0 0.00% 0 0 0 0 0 18 ppm 7 Day Rolling Average per CD 1 TRUE 310 SO2 0 0.00% 0 0 0 0 0 50 ppm 7 Day Rolling Average per NSPSP JA 1 TRUE 310 O2 0 0.00% 0 0 0 0 0 2.1 % 24-Hr Avg 1 TRUE 310 SO2 0 0.00% 0 0 0 0 0 1.68 Tons / Day 24-Hr Avg 1 TRUE 310 H2S 4 0.19% 0 0 4 0 0 162 ppm 3-HR Rolling Avg 1 Point source not operated 310 VOC 0 0.00% 0 0 0 0 0 11000 ppm 3-Hr Rolling Avg 1 TRUE 310 H2S 0 0.00% 0 0 0 0 0 162 ppm 3-Hr Rolling Avg 1 TRUE 310 H2S 0 0.00% 0 0 0 0 0 162 ppm 3-Hr Rolling Avg 1 310 0 0 0 0 0 0 0 0 0 1 Type Code 300 (CMSPerformance 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 Causes1 TRUE 300 CO 2159 0.28% 6 3 0 1 2 0 1 TRUE 300 CO2 2159 0.28% 6 3 0 1 2 0 1 TRUE 300 CO2 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 CO 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 O2 2159 0.19% 4 1 0 1 2 0 1 TRUE 300 O2 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 BTU 2159 3.29% 71 43 0 11 17 0 1 TRUE 300 Flow 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 H2S 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 BTU 2159 0.42% 9 0 0 9 0 0 1 TRUE 300 Flow 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 H2S 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 1.44% 31 31 0 0 0 0 1 TRUE 300 TS 2159 1.44% 31 31 0 0 0 0 1 TRUE 300 TS 2159 1.44% 31 31 0 0 0 0 1 TRUE 300 Flow 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 TS 2159 0.00% 0 0 0 0 0 0 1 Point source not operated 300 CO 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 CO 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 NOx 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 NOx 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 NOx 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 NOx 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 O2 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 O2 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 SO2 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 SO2 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 SO2 0 0.00% 0 0 0 0 0 0 1 Point source not operated 300 SO2 0 0.00% 0 0 0 0 0 0 1 TRUE 300 CO 2159 0.23% 5 2 0 3 0 0 1 TRUE 300 NOx 2159 2.41% 52 49 0 3 0 0 1 TRUE 300 NOx 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 O2 2159 0.23% 5 2 0 3 0 0 1 TRUE 300 O2 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 SGF 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 SGF 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 SO2 2159 0.23% 5 2 0 3 0 0 1 TRUE 300 SO2 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 O2 2159 4.45% 96 69 0 27 0 0 1 TRUE 300 SO2 2159 2.45% 53 26 0 27 0 0 1 TRUE 300 SO2 2159 2.64% 57 30 0 27 0 0 1 TRUE 300 H2S 2159 0.00% 0 0 0 0 0 0 1 Point source not operated 300 VOC 0 0.00% 0 0 0 0 0 0 1 TRUE 300 H2S 2159 0.00% 0 0 0 0 0 0 1 TRUE 300 H2S 2159 0.00% 0 0 0 0 0 0 1 300 0 0 0 0 0 0 SRU-Incinerator V917 BCLR COGEN COGEN 0 WGS WGS WGS WGS WGS WGS WGS SRU-Incinerator SRU-Incinerator WGS WGS SOUTH FLARE NORTH FLARE NORTH FLARE NORTH FLARE NORTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SRU FLARE SRU FLARE SRU FLARE SRU FLARE COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS WGS SRU-Incinerator SRU-Incinerator V917 BCLR COGEN COGEN 0 WGS WGS WGS WGS WGS NORTH FLARE SOUTH FLARE COB BYPASS WGS WGS REGEN REGEN REGEN NORTH FLARE NORTH FLARE WGS WGS REGEN REGEN REGEN COB BYPASS Point Source Point Source COB BYPASS COB BYPASS COB BYPASS Tesoro Refinery EER 1Q2025 1 Type Code 250(Performance SpecificationRATA 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 1 399 Days 250 CO 02/25/25 01/23/24 13 ppm 0 20.42 4.80% Pass 1 399 Days 250 CO2 02/25/25 01/23/24 13 0 17.11 16.48 447.00% Pass 1 401 Days 250 CO2 02/26/25 01/22/24 13 0 17.17 16.43 492.00% Pass 1 401 Days 250 CO 02/26/25 01/22/24 13 ppm 0 35.13 8.20% Pass 1 399 Days 250 O2 02/25/25 01/23/24 13 0 0.61 0.67 1277.00% Pass 1 401 Days 250 O2 02/26/25 01/22/24 13 0 1.5 1.52 225.00% Pass 1 365 Days 250 H2S 08/21/24 08/22/23 12 ppm 0 0 0.00% Pass 1 #VALUE! 250 TS 10/07/15 Na Na ppm 1217 1144 1080.00% Pass 1 #VALUE! 250 TS 10/13/15 Na Na ppm 1217 1144 1080.00% Pass 1 #VALUE! 250 TS 10/13/15 Na Na ppm 1217 1144 1080.00% Pass 1 363 Days 250 H2S 08/20/24 08/23/23 12 ppm 0 0 0.00% Pass 1 #VALUE! 250 TS 10/07/15 Na Na ppm 203.3 212.5 1130.00% Pass 1 #VALUE! 250 TS 10/07/15 Na Na ppm 203.3 212.5 1130.00% Pass 1 #VALUE! 250 TS 10/07/15 Na Na ppm 203.3 212.5 1130.00% Pass 1 #VALUE! 250 TS 10/09/15 Na Na ppm 102.3 102.2 410.00% Pass 1 #VALUE! 250 TS 10/09/15 Na Na ppm 102.3 102.2 410.00% Pass 1 #VALUE! 250 TS 10/09/15 Na Na ppm 102.3 102.2 410.00% Pass 1 399 Days 250 CO 02/25/25 01/23/24 13 ppm 21.42 21.09 10.00% Pass 1 #VALUE! 250 CO 02/26/25 Na Na ppm 48.12 37.89 228.00% Pass 1 399 Days 250 NOx 02/25/25 01/23/24 13 ppm 31.81 29.83 1509.00% Pass 1 296 Days 250 NOx 02/26/25 05/06/24 9 ppm 59.43 53.31 1243.00% Pass 1 399 Days 250 NOx 02/25/25 01/23/24 13 ppm 31.81 29.83 1509.00% Pass 1 296 Days 250 NOx 02/26/25 05/06/24 9 ppm 59.43 53.31 1243.00% Pass 1 399 Days 250 O2 02/25/25 01/23/24 13 0 0.69 0.67 1515.00% Pass 1 296 Days 250 O2 02/26/25 05/06/24 9 0 1.56 1.52 299.00% Pass 1 399 Days 250 SO2 02/25/25 01/23/24 13 ppm 91.51 95.07 510.00% Pass 1 296 Days 250 SO2 02/26/25 05/06/24 9 ppm 85.33 88.04 641.00% Pass 1 399 Days 250 SO2 02/25/25 01/23/24 13 ppm 91.51 95.07 510.00% Pass 1 296 Days 250 SO2 02/26/25 05/06/24 9 ppm 85.33 88.04 641.00% Pass 1 391 Days 250 CO 02/19/25 01/25/24 13 ppm 5.38 2.16 91.00% Pass 1 392 Days 250 CO 02/20/25 01/25/24 13 ppm 11.89 16 109.00% Pass 1 391 Days 250 NOx 02/19/25 01/25/24 13 ppm 0 0 2.30% Pass 1 392 Days 250 NOx 02/20/25 01/25/24 13 ppm 2.01 2.88 655.00% Pass 1 391 Days 250 O2 02/19/25 01/25/24 13 0 4.39 4.35 117.00% Pass 1 392 Days 250 O2 02/20/25 01/25/24 13 0 4.34 4.32 71.00% Pass 1 391 Days 250 SGF 02/19/25 01/25/24 13 dscfm 101176 98680 476.00% Pass 1 392 Days 250 SGF 02/20/25 01/25/24 13 dscfm 103562 98318 695.00% Pass 1 391 Days 250 SO2 02/19/25 01/25/24 13 ppm 0.31 -0.093 300.00% Pass 1 392 Days 250 SO2 02/20/25 01/25/24 13 ppm 0.08 -0.042 135.00% Pass 1 385 Days 250 O2 08/29/24 08/10/23 12 0 7.44 7.87 706.00% Pass 1 385 Days 250 SO2 08/29/24 08/10/23 12 PPM 69.8 62.5 52.00% Pass 1 385 Days 250 SO2 08/29/24 08/10/23 12 ppm 69.5 62.5 50.00% Pass 1 380 Days 250 H2S 08/22/24 08/08/23 12 ppm 14.52 22.29 627.00% Pass 1 #VALUE! 250 VOC 06/24/19 Na Na ppm 8.5 47.3 59.00% Pass 1 384 Days 250 H2S 08/27/24 08/09/23 12 ppm 0 0 0.00% Pass 1 305 Days 250 H2S 08/27/24 10/27/23 10 ppm 0 0 0.00% Pass 1 0 Days 250 0 01/00/00 01/00/00 0 0 0 0 0.00% 0 COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS WGS REGEN REGEN REGEN REGEN REGEN REGEN COB BYPASS COB BYPASS COB BYPASS COB BYPASS SOUTH FLARE SOUTH FLARE SOUTH FLARE SRU FLARE SRU FLARE NORTH FLARE NORTH FLARE NORTH FLARE NORTH FLARE SOUTH FLARE COB BYPASS SRU FLARE WGS WGS WGS WGS WGS WGS WGS WGS WGS SRU-Incinerator COGEN COGEN 0 Point Source SRU-Incinerator SRU-Incinerator V917 BCLR Tesoro Refinery EER 1Q2025 1 Type Code 260(CGA Results)Type Code Channel Date Audit Point No. Cylinder ID Cylinder Expiration Date Type of Certification Units ofMeasurement CEM Value Cylinder Value Precision%Pass/ Fail Range - High or Low1 Valid Cal. Gas 260 CO 02/19/25 1 CC753613 02/13/32 G-1 ppm 270.67 251.5 -7.62% Pass 0 1 Valid Cal. Gas 260 CO 02/19/25 2 EB0116137 10/23/31 G-1 ppm 581 554.2 -4.84% Pass 0 1 Valid Cal. Gas 260 CO 02/20/25 1 CC753613 02/13/32 G-1 ppm 252.67 251.5 -0.47% Pass 0 1 Valid Cal. Gas 260 CO 02/20/25 2 EB0116137 10/23/31 G-1 ppm 556 554.2 -0.32% Pass 0 1 Valid Cal. Gas 260 NOx 02/19/25 1 CC753613 02/13/32 G-1 ppm 266.33 255.6 -4.20% Pass 0 1 Valid Cal. Gas 260 NOx 02/19/25 2 EB0116137 10/23/31 G-1 ppm 598 566.9 -5.49% Pass 0 1 Valid Cal. Gas 260 NOx 02/20/25 1 CC753613 02/13/32 G-1 ppm 260.33 255.6 -1.85% Pass 0 1 Valid Cal. Gas 260 NOx 02/20/25 2 EB0116137 10/23/31 G-1 ppm 571.33 566.9 -0.78% Pass 0 1 Valid Cal. Gas 260 NOx 02/19/25 1 CC744543 09/06/31 G-1 ppm 50 49.63 -0.75% Pass 0 1 Valid Cal. Gas 260 NOx 02/19/25 2 ALM005596 01/03/31 G-1 ppm 113 110.5 -2.26% Pass 0 1 Valid Cal. Gas 260 NOx 02/20/25 1 CC744543 09/06/31 G-1 ppm 52.67 49.63 -6.13% Pass 0 1 Valid Cal. Gas 260 NOx 02/20/25 2 ALM005596 01/03/31 G-1 ppm 114.33 110.5 -3.47% Pass 0 1 Valid Cal. Gas 260 O2 02/19/25 1 CC142008 01/22/27 G-1 ppm 5.01 5 -0.01% Pass 0 1 Valid Cal. Gas 260 O2 02/19/25 2 ALM002303 02/26/27 G-1 ppm 9.44 10.05 0.61% Pass 0 1 Valid Cal. Gas 260 O2 02/20/25 1 CC142008 01/22/27 G-1 ppm 5.26 5 -0.26% Pass 0 1 Valid Cal. Gas 260 O2 2/20/25 2 ALM002303 2/26/27 G-1 ppm 9 10 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 1 CC753613 2/13/32 G-1 ppm 241 248 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 2 EB0116137 10/23/31 G-1 ppm 549 554 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/20/25 1 CC753613 2/13/32 G-1 ppm 247 248 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/20/25 2 EB0116137 10/23/31 G-1 ppm 553 554 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 1 CC744543 9/6/31 G-1 ppm 49 50 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 2 ALM005596 1/3/31 G-1 ppm 109 108 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/20/25 1 CC744543 9/6/31 G-1 ppm 50 50 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/20/25 2 ALM005596 1/3/31 G-1 ppm 109 108 0 Pass 0 1 Valid Cal. Gas 260 H2S 2/6/25 1 CC435760 12/12/26 G-1 ppm 81 75 0 Pass 0 1 Valid Cal. Gas 260 H2S 2/6/25 2 CC452533 6/5/27 G-1 ppm 158 166 0 Pass 0 1 Valid Cal. Gas 260 H2S 2/5/25 1 CC435760 12/12/26 G-1 ppm 85 75 0 Pass 0 1 Valid Cal. Gas 260 H2S 2/5/25 2 CC452533 6/5/27 G-1 ppm 156 166 0 Pass 0 1 Valid Cal. Gas 260 H2S 1/14/25 1 CC315968 12/28/25 G-1 ppm 71 75 0 Pass 0 1 Valid Cal. Gas 260 H2S 1/14/25 2 CC288004 8/15/27 G-1 ppm 166 165 0 Pass 0 1 Valid Cal. Gas 260 TS 1/16/25 1 CC418639 11/21/25 G-1 ppm 27,036 25,135 0 Pass 0 1 Valid Cal. Gas 260 TS 1/16/25 2 CC282530 7/6/25 G-1 ppm 59,126 55,048 0 Pass 0 1 Valid Cal. Gas 260 TS 1/16/25 1 ALM053348 9/16/25 G-1 ppm 5,054 4,984 0 Pass 0 1 Valid Cal. Gas 260 TS 1/16/25 2 CC59417 1/12/26 G-1 ppm 11,394 11,046 0 Pass 0 1 Valid Cal. Gas 260 TS 1/16/25 1 CC288004 8/15/27 G-1 ppm 167 165 0 Pass 0 1 Valid Cal. Gas 260 TS 1/16/25 2 CC33925 6/8/25 G-1 ppm 334 324 0 Pass 0 1 Valid Cal. Gas 260 CO 2/12/25 1 ALM064522 3/31/28 G-1 % 1 1 0 Pass 0 1 Valid Cal. Gas 260 CO 2/11/25 1 ALM064522 3/31/28 G-1 % 1 1 0 Pass 0 1 Valid Cal. Gas 260 CO 2/12/25 2 XC034501B 1/18/26 G-1 % 3 3 0 Pass 0 1 Valid Cal. Gas 260 CO 2/11/25 2 XC034501B 1/18/26 G-1 % 3 3 0 Pass 0 1 Valid Cal. Gas 260 CO2 2/12/25 1 ALM064522 3/31/28 G-1 % 5 5 0 Pass 0 1 Valid Cal. Gas 260 CO2 2/11/25 1 ALM064522 3/31/28 G-1 % 5 5 0 Pass 0 1 Valid Cal. Gas 260 CO2 2/12/25 2 XC034501B 1/18/26 G-1 % 11 11 0 Pass 0 1 Valid Cal. Gas 260 CO2 2/11/25 2 XC034501B 1/18/26 G-1 % 11 11 0 Pass 0 1 Valid Cal. Gas 260 O2 2/12/25 1 ALM064522 3/31/28 G-1 % 1 1 0 Pass 0 1 Valid Cal. Gas 260 O2 2/11/25 1 ALM064522 3/31/28 G-1 % 1 1 0 Pass 0 1 Valid Cal. Gas 260 O2 2/12/25 2 XC034501B 1/18/26 G-1 % 3 3 0 Pass 0 1 Valid Cal. Gas 260 O2 2/11/25 2 XC034501B 1/18/26 G-1 % 2 3 0 Pass 0 1 Valid Cal. Gas 260 H2S 1/21/25 1 CC275345 2/5/27 G-1 ppm 77 76 0 Pass 0 1 Valid Cal. Gas 260 H2S 1/21/25 2 CC412673 8/16/26 G-1 ppm 164 165 0 Pass 0 1 Valid Cal. Gas 260 TS 1/23/25 1 DT0015185 11/4/25 G-1 ppm 24,877 25,103 0 Pass 0 1 Valid Cal. Gas 260 TS 1/23/25 2 CC193021 2/24/26 G-1 ppm 56,159 55,019 0 Pass 0 1 Valid Cal. Gas 260 TS 1/23/25 1 ALM040625 9/15/25 G-1 ppm 4,818 5,015 0 Pass 0 1 Valid Cal. Gas 260 TS 1/23/25 2 ALM019859 12/20/26 G-1 ppm 10,257 11,076 0 Pass 0 1 Valid Cal. Gas 260 TS 1/23/25 1 CC412673 8/16/26 G-1 ppm 152 165 0 Pass 0 1 Valid Cal. Gas 260 TS 1/23/25 2 ALM045277 6/8/25 G-1 ppm 316 326 0 Pass 0 1 Valid Cal. Gas 260 TS 3/5/25 1 AAL069980 5/4/26 G-1 ppm 34,397 33,962 0 Pass 0 1 Valid Cal. Gas 260 TS 3/5/25 2 CC362254 2/8/27 G-1 ppm 56,355 55,189 0 Pass 0 1 Valid Cal. Gas 260 TS 3/5/25 1 EB0023438 1/12/26 G-1 ppm 10,710 11,093 0 Pass 0 1 Valid Cal. Gas 260 TS 3/5/25 2 CC508118 4/10/27 G-1 ppm 21,831 22,051 0 Pass 0 1 Valid Cal. Gas 260 TS 3/5/25 1 CC1494 9/19/26 G-1 ppm 268 271 0 Pass 0 1 Valid Cal. Gas 260 TS 3/5/25 2 EB0147485 7/14/25 G-1 ppm 651 666 0 Pass 0 1 Valid Cal. Gas 260 O2 2/19/25 1 ALM031000 9/7/29 G-1 % 6 6 0 Pass 0 1 Valid Cal. Gas 260 O2 2/19/25 2 XC000031B 11/30/31 G-1 % 14 14 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 1 CC140760 12/12/31 G-1 ppm 4,055 4,090 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 2 ALM004994 12/5/31 G-1 ppm 7,467 7,327 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 1 ALM031000 9/7/29 G-1 ppm 260 255 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/19/25 2 XC000031B 11/30/31 G-1 pm 558 560 0 Pass 0 1 Valid Cal. Gas 260 H2S 2/21/25 1 CC461279 2/5/27 G-1 ppm 76 76 0 Pass 0 1 Valid Cal. Gas 260 H2S 2/21/25 2 EB0159447 3/27/27 G-1 ppm 169 166 0 Pass 0 1 Valid Cal. Gas 260 CO 2/24/25 1 CC506662 10/31/30 G-1 ppm 255 253 0 Pass 0 1 Valid Cal. Gas 260 CO 2/25/25 1 CC506662 10/31/30 G-1 ppm 253 253 0 Pass 0 1 Valid Cal. Gas 260 CO 2/24/25 2 EB0092309 3/15/29 G-1 ppm 555 550 0 Pass 0 1 Valid Cal. Gas 260 CO 2/25/25 2 EB0092309 3/15/29 G-1 ppm 552 550 0 Pass 0 1 Valid Cal. Gas 260 NOx 2/24/25 1 EB0109047 1/10/30 G-1 ppm 49 50 0 Pass 0 1 Valid Cal. Gas 260 NOx 2/25/25 1 EB0109047 1/10/30 G-1 ppm 49 50 0 Pass 0 1 Valid Cal. Gas 260 NOx 2/24/25 2 AAL0679001 12/16/28 G-1 ppm 111 112 0 Pass 0 1 Valid Cal. Gas 260 NOx 2/25/25 2 AAL0679001 12/16/28 G-1 ppm 111 112 0 Pass 0 1 Valid Cal. Gas 260 O2 2/24/25 1 CC506662 10/31/30 G-1 ppm 3 3 0 Pass 0 1 Valid Cal. Gas 260 O2 2/25/25 1 CC506662 10/31/30 G-1 pm 2 3 0 Pass 0 1 Valid Cal. Gas 260 O2 2/24/25 2 EB0092309 3/15/29 G-1 ppm 6 6 0 Pass 0 1 Valid Cal. Gas 260 O2 2/25/25 2 EB0092309 3/15/29 G-1 ppm 5 6 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/24/25 1 CC506662 10/31/30 G-1 ppm 52 50 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/25/25 1 CC506662 10/31/30 G-1 ppm 51 50 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/24/25 2 EB0092309 3/15/29 G-1 ppm 118 110 0 Pass 0 1 Valid Cal. Gas 260 SO2 2/25/25 2 EB0092309 3/15/29 G-1 ppm 115 110 0 Pass 0 1 260 0 1/0/00 0 0 1/0/00 0 0 0 0 0 0 0 1 Type Code 270(Linearity Test Results)Type Code Channel Date Audit Point No. Cylinder ID Cylinder Expiration Date Type of Certification Units ofMeasurement CEM Value Cylinder Value Precision%Pass/ Fail Range - High or Low1 270 0 01/00/00 0 0 01/00/00 0 0 0 0 0.00% 0 00 WGS 0 WGS WGS WGS WGS WGS WGS WGS WGS WGS SRU-Incinerator V917 V917 WGS WGS WGS WGS WGS WGS SRU FLARE SRU FLARE SRU FLARE SRU FLARE SRU-Incinerator SRU-Incinerator SRU-Incinerator SRU-Incinerator SRU-Incinerator SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SRU FLARE SRU FLARE REGEN REGEN REGEN REGEN REGEN REGEN REGEN REGEN SOUTH FLARE NORTH FLARE NORTH FLARE NORTH FLARE NORTH FLARE NORTH FLARE REGEN REGEN REGEN REGEN COGEN COGEN COGEN COGEN NORTH FLARE NORTH FLARE NORTH FLARE COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS Point Source Point Source COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS COB BYPASS Tesoro Refinery EER 1Q2025 1 Type Code 210(Pollutant Concentration Exceeded Span of CEM) Type Code Channel Start Date Start Time End Date End Time Hours 1 1 210 H2S 1/16/25 9:36 1/16/25 9:40 0.07 1 1 210 H2S 1/16/25 10:45 1/16/25 10:49 0.07 1 2 210 H2S 1/23/25 14:17 1/23/25 14:21 0.07 1 TRUE 210 H2S 1/23/25 16:37 1/23/25 16:41 0.07 1 210 H2S 2/13/25 10:01 2/13/25 10:05 0.07 1 210 H2S 3/6/25 15:17 3/6/25 15:21 0.07 1 210 H2S 3/6/25 15:29 3/6/25 15:33 0.07 1 210 H2S 3/6/25 15:37 3/6/25 15:45 0.13 1 210 H2S 3/6/25 15:49 3/6/25 15:57 0.13 1 210 H2S 3/6/25 16:01 3/6/25 16:05 0.07 1 210 CO 1/9/25 22:47 1/9/25 22:50 0.05 1 210 SO2 1/1/25 20:39 1/1/25 20:55 0.27 1 210 0 1/0/00 0:00 1/0/00 0:00 1 1 Yes 1 1.18 TC 220 Hours 465.00 TC 220 Hours 0.00 TC 230 Hours 0.00 Events 0.00 Hours 0.00 Events 0.00 0.00 1 462.00 TC 300 Hours 3.00 FALSE WGS WGS 0 SOUTH FLARE SOUTH FLARE NORTH FLARE NORTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE SOUTH FLARE Type Code 210 (Pollutant Concentration Exceeded Span of CEM) Type Code 220 (Monitor Outage During Point Source Operation) Type Code 230 (Manual Sample - AlternateSampling During MonitorOutage) Type Code 240(CEM Modifications) Type Code 530 (Excess Emissions During Emergency Conditions) Type Code 450(Data Excluded) 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) SOUTH FLARE SOUTH FLARE Point Source Yes None Reported None Reported None Reported None Reported None Reported None Reported Tesoro Refinery EER 1Q2025 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 REGEN CO 02/25/25 01/23/24 13 ppm 0 20.42 4.80% Pass REGEN CO2 02/25/25 01/23/24 13 17.11 16.48 447.00% Pass REGEN CO2 02/26/25 01/22/24 13 17.17 16.43 492.00% Pass REGEN CO 02/26/25 01/22/24 13 ppm 0 35.13 8.20% Pass REGEN O2 02/25/25 01/23/24 13 0.61 0.67 1277.00% Pass REGEN O2 02/26/25 01/22/24 13 1.5 1.52 225.00% Pass NORTH FLARE H2S 08/21/24 08/22/23 12 ppm 0 0.00 0.00% Pass NORTH FLARE TS 10/07/15 Na Na ppm 1217 1144.00 1080.00% Pass NORTH FLARE TS 10/13/15 Na Na ppm 1217 1144.00 1080.00% Pass NORTH FLARE TS 10/13/15 Na Na ppm 1217 1144.00 1080.00% Pass SOUTH FLARE H2S 08/20/24 08/23/23 12 ppm 0 0.00 0.00% Pass SOUTH FLARE TS 10/07/15 Na Na ppm 203.3 212.50 1130.00% Pass SOUTH FLARE TS 10/07/15 Na Na ppm 203.3 212.50 1130.00% Pass SOUTH FLARE TS 10/07/15 Na Na ppm 203.3 212.50 1130.00% Pass SRU FLARE TS 10/09/15 Na Na ppm 102.3 102.20 410.00% Pass SRU FLARE TS 10/09/15 Na Na ppm 102.3 102.20 410.00% Pass SRU FLARE TS 10/09/15 Na Na ppm 102.3 102.20 410.00% Pass COB BYPASS CO 02/25/25 01/23/24 13 ppm 21.42 21.09 10.00% Pass COB BYPASS CO 02/26/25 Na Na ppm 48.12 37.89 228.00% Pass COB BYPASS NOx 02/25/25 01/23/24 13 ppm 31.81 29.83 1509.00% Pass COB BYPASS NOx 02/26/25 05/06/24 9 ppm 59.43 53.31 1243.00% Pass COB BYPASS NOx 02/25/25 01/23/24 13 ppm 31.81 29.83 1509.00% Pass COB BYPASS NOx 02/26/25 05/06/24 9 ppm 59.43 53.31 1243.00% Pass COB BYPASS O2 02/25/25 01/23/24 13 0.69 0.67 1515.00% Pass COB BYPASS O2 02/26/25 05/06/24 9 1.56 1.52 299.00% Pass COB BYPASS SO2 02/25/25 01/23/24 13 ppm 91.51 95.07 510.00% Pass COB BYPASS SO2 02/26/25 05/06/24 9 ppm 85.33 88.04 641.00% Pass COB BYPASS SO2 02/25/25 01/23/24 13 ppm 91.51 95.07 510.00% Pass COB BYPASS SO2 02/26/25 05/06/24 9 ppm 85.33 88.04 641.00% Pass WGS CO 02/19/25 01/25/24 13 ppm 5.38 2.16 91.00% Pass WGS CO 02/20/25 01/25/24 13 ppm 11.89 16.00 109.00% Pass WGS NOx 02/19/25 01/25/24 13 ppm 0 0.00 2.30% Pass WGS NOx 02/20/25 01/25/24 13 ppm 2.01 2.88 655.00% Pass WGS O2 02/19/25 01/25/24 13 4.39 4.35 117.00% Pass WGS O2 02/20/25 01/25/24 13 4.34 4.32 71.00% Pass WGS SGF 02/19/25 01/25/24 13 dscfm 101176 98680.00 476.00% Pass WGS SGF 02/20/25 01/25/24 13 dscfm 103562 98318.00 695.00% Pass WGS SO2 02/19/25 01/25/24 13 ppm 0.31 -0.09 300.00% Pass WGS SO2 02/20/25 01/25/24 13 ppm 0.08 -0.04 135.00% Pass SRU-Incinerator O2 08/29/24 08/10/23 12 7.44 7.87 706.00% Pass SRU-Incinerator SO2 08/29/24 08/10/23 12 PPM 69.8 62.50 52.00% Pass SRU-Incinerator SO2 08/29/24 08/10/23 12 ppm 69.5 62.50 50.00% Pass V917 H2S 08/22/24 08/08/23 12 ppm 14.52 22.29 627.00% Pass BCLR VOC 06/24/19 Na Na ppm 8.5 47.30 59.00% Pass COGEN H2S 08/27/24 08/09/23 12 ppm 0 0.00 0.00% Pass COGEN H2S 08/27/24 10/27/23 10 ppm 0 0.00 0.00% Pass * Tesoro Refinery EER 1Q2025 NSPS CGA First 2025 Audit Gas Ranges Audit Gas Ranges AP1 Low AP2 Low AP1 High AP2 High COB BYPASS CO 2/19/25 1000 251.5 200 to 300 COB BYPASS CO 2/19/25 1000 554.2 500 to 600 COB BYPASS CO 2/20/25 1000 251.5 200 to 300 COB BYPASS CO 2/20/25 1000 554.2 500 to 600 COB BYPASS NOx 2/19/25 1000 255.6 200 to 300 COB BYPASS NOx 2/19/25 1000 566.9 500 to 600 COB BYPASS NOx 2/20/25 1000 255.6 200 to 300 COB BYPASS NOx 2/20/25 1000 566.9 500 to 600 COB BYPASS NOx 2/19/25 1000 49.63 200 to 300 COB BYPASS NOx 2/19/25 1000 110.5 500 to 600 COB BYPASS NOx 2/20/25 1000 49.63 200 to 300 COB BYPASS NOx 2/20/25 1000 110.5 500 to 600 COB BYPASS O2 2/19/25 25 5 4 to 6 COB BYPASS O2 2/19/25 25 10.05 8 to 12 COB BYPASS O2 2/20/25 25 5 4 to 6 COB BYPASS O2 2/20/25 25 10.05 8 to 12 COB BYPASS SO2 2/19/25 1000 247.5 200 to 300 COB BYPASS SO2 2/19/25 1000 553.9 500 to 600 COB BYPASS SO2 2/20/25 1000 247.5 200 to 300 COB BYPASS SO2 2/20/25 1000 553.9 500 to 600 COB BYPASS SO2 2/19/25 1000 49.75 200 to 300 COB BYPASS SO2 2/19/25 1000 107.8 500 to 600 COB BYPASS SO2 2/20/25 1000 49.75 200 to 300 COB BYPASS SO2 2/20/25 1000 107.8 500 to 600 COGEN H2S 2/6/25 300 75.28 60 to 90 COGEN H2S 2/6/25 300 165.6 150 to 180 COGEN H2S 2/5/25 300 75.28 60 to 90 COGEN H2S 2/5/25 300 165.6 150 to 180 NORTH FLARE H2S 1/14/25 300 74.63 60 to 90 NORTH FLARE H2S 1/14/25 300 164.8 150 to 180 NORTH FLARE TS 1/16/25 100000 25135 20000 to 30000 NORTH FLARE TS 1/16/25 100000 55048 50000 to 60000 NORTH FLARE TS 1/16/25 20000 4984 4000 to 6000 NORTH FLARE TS 1/16/25 20000 11046 10000 to 12000 NORTH FLARE TS 1/16/25 600 164.5 120 to 180 NORTH FLARE TS 1/16/25 600 323.6 300 to 360 REGEN CO 2/12/25 5 1.25 1 to 1.5 REGEN CO 2/11/25 5 1.25 1 to 1.5 REGEN CO 2/12/25 5 2.76 2.5 to 3 REGEN CO 2/11/25 5 2.76 2.5 to 3 REGEN CO2 2/12/25 20 5.04 5 to 8 REGEN CO2 2/11/25 20 5.04 5 to 8 REGEN CO2 2/12/25 20 11.04 10 to 14 REGEN CO2 2/11/25 20 11.04 10 to 14 REGEN O2 2/12/25 5 1.23 4 to 6 REGEN O2 2/11/25 5 1.23 4 to 6 REGEN O2 2/12/25 5 2.73 8 to 12 REGEN O2 2/11/25 5 2.73 8 to 12 SOUTH FLARE H2S 1/21/25 300 76.03 60 to 90 SOUTH FLARE H2S 1/21/25 300 164.7 150 to 180 SOUTH FLARE TS 1/23/25 100000 25103 20000 to 30000 SOUTH FLARE TS 1/23/25 100000 55019 50000 to 60000 SOUTH FLARE TS 1/23/25 20000 5015 4000 to 6000 SOUTH FLARE TS 1/23/25 20000 11076 10000 to 12000 SOUTH FLARE TS 1/23/25 600 164.7 120 to 180 SOUTH FLARE TS 1/23/25 600 326.2 300 to 360 SRU FLARE TS 3/5/25 1000000 33962 200000 to 300000 SRU FLARE TS 3/5/25 1000000 55189 500000 to 600000 SRU FLARE TS 3/5/25 40000 11093 8000 to 12000 SRU FLARE TS 3/5/25 40000 22051 20000 to 24000 SRU FLARE TS 3/5/25 1200 271.4 240 to 360 SRU FLARE TS 3/5/25 1200 666.4 600 to 720 SRU-Incinerator O2 2/19/25 25.1 6.28 4 to 6 SRU-Incinerator O2 2/19/25 25.1 13.81 8 to 12 SRU-Incinerator SO2 2/19/25 14000 4090 2800 to 4200 SRU-Incinerator SO2 2/19/25 14000 7327 7000 to 8400 SRU-Incinerator SO2 2/19/25 14000 255.4 2800 to 4200 SRU-Incinerator SO2 2/19/25 14000 560.3 7000 to 8400 V917 H2S 2/21/25 300 75.8 60 to 90 V917 H2S 2/21/25 300 166.1 150 to 180 WGS CO 2/24/25 1000 252.9 200 to 300 WGS CO 2/25/25 1000 252.9 200 to 300 WGS CO 2/24/25 1000 550.1 500 to 600 WGS CO 2/25/25 1000 550.1 500 to 600 WGS NOx 2/24/25 200 50.22 40 to 60 WGS NOx 2/25/25 200 50.22 40 to 60 WGS NOx 2/24/25 200 111.6 100 to 120 WGS NOx 2/25/25 200 111.6 100 to 120 WGS O2 2/24/25 10 2.52 4 to 6 WGS O2 2/25/25 10 2.52 4 to 6 WGS O2 2/24/25 10 5.5 8 to 12 WGS O2 2/25/25 10 5.5 8 to 12 WGS SO2 2/24/25 200 50.12 40 to 60 WGS SO2 2/25/25 200 50.12 40 to 60 WGS SO2 2/24/25 200 110.4 100 to 120 WGS SO2 2/25/25 200 110.4 100 to 120 Audit Gas Used High Span Audit Gas UsedPoint Source Channel Audit Date Low Span Tesoro Refinery EER 1Q2025 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) H2S CO SO2 Grand Total (blank)0.00 0.00 NORTH FLARE 0.20 0.20 SOUTH FLARE 0.67 0.67 WGS 0.05 0.27 0.32 Grand Total 0.00 0.87 0.05 0.27 1.18 * 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 Tesoro Refinery EER 1Q2025 Type Code 220 (Monitor Outage During Point Source Operation) - 600 (All) * Sum of Hours Column Labels Row Labels 721 724 723 Grand Total REGEN CO Sample system plugged/failed - cleaned or replaced 1 1 Routine/preventative maintenance 2 2 Quarterly CGA or RATA 1 1 Cleaned sample system and/or replaced filter 2 2 CO2 Sample system plugged/failed - cleaned or replaced 1 1 Routine/preventative maintenance 2 2 Quarterly CGA or RATA 1 1 Cleaned sample system and/or replaced filter 2 2 O2 Sample system plugged/failed - cleaned or replaced 1 1 Routine/preventative maintenance 2 2 Quarterly CGA or RATA 1 1 NORTH FLARE BTU Sample inadvertantly left in off position 17 17 6 Month PM 11 11 Analyzer failed daily calibration drift test 2 2 Erroneous readings due to baseline noise in the gas chromatography 41 41 SOUTH FLARE BTU 6 Month PM 9 9 TS FID/FPD flame out 93 93 WGS CO Quarterly CGA or RATA 3 3 WGS NOx Converter went out/replaced 2 2 O2 Quarterly CGA or RATA 2 2 WGS NOx Converter went out/replaced 2 2 Maintenance personnel recalibrated analyzer 1 1 NOx Quarterly CGA or RATA 3 3 WGS NOx Converter went out/replaced 49 49 SO2 Quarterly CGA or RATA 3 3 WGS NOx Converter went out/replaced 2 2 SRU-Incinerator O2 Sample system plugged/failed - cleaned or replaced 1 1 Quarterly CGA or RATA 4 4 Analyzer failed daily calibration drift test 55 55 Maintenance personnel diagnosing and repairing analyzer 1 1 Replaced/repaired sample pump or blower motor 12 12 Missed daily calibration drfit 24 24 SO2 Sample system plugged/failed - cleaned or replaced 2 2 Quarterly CGA or RATA 8 8 Analyzer failed daily calibration drift test 7 7 Maintenance personnel diagnosing and repairing analyzer 13 13 Replaced/repaired sample pump or blower motor 24 24 Missed daily calibration drfit 48 48 Replaced analyzer lamps 10 10 Grand Total 323 23 119 465 Tesoro Refinery EER 1Q2025 Sum of Hours Column Labels Row Labels 721 724 723 Grand Total Tesoro Refinery EER 1Q2025 Opy * Opy Count of Magnitude of Emissions Column Labels Opy Row Labels Grand Total Opy Grand Total SO2 * SO2 Type Code 410 (SO2) - 6000 (All) SO2 * SO2 Count of Magnitude of Emissions Column Labels SO2 Row Labels Grand Total SO2 Grand Total 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 H2S/TRS * H2S/TRS Type Code 430 (H2S) - 6000 (All) H2S/TRS * H2S/TRS Count of Magnitude of Emissions Column Labels H2S/TRS Row Labels 703 Grand Total H2S/TRS V917 H2S/TRS H2S exceeded due to unit upset 4 4 H2S/TRS Grand Total 4 4 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 VOC/THC * VOC/THC Type Code 460 (VOC/THC) - 6000 (All) VOC/THC * VOC/THC Count of Magnitude of Emissions Column Labels VOC/THC Row Labels Grand Total VOC/THC 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 Tesoro Refinery EER 1Q2025 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