Flare Event Notification System (FENS)
Facility Info
174655
TESORO REFINING & MARKETING CO, LLC
2350 E 223RD ST, CARSON, CA 90810
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Current Flare Events

No current flare events to be displayed.

Upcoming Flare Events

No upcoming flare events to be displayed.

Past Flare Events
Event ID Event Type Estimated Start Estimated Stop Actual Start Actual Stop Public Notification Date Reason of Event Event Cumulative Thresholds AQMD Staff Comments
N/A N/A 1/6/2020 9:11:41 PM Initial determination unknown (under investigation)
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/12/2020 1:15:40 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 1/13/2020 7:35:40 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/14/2020 5:06:18 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
1/16/2020 1:20:44 PM Start-up/Shut down
  • Event did not exceed any Rule 1118 notification thresholds
N/A N/A 1/19/2020 3:28:48 PM Initial determination unknown (under investigation)
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
2/21/2020 3:43:27 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/26/2020 12:37:06 AM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A Mechanical/Electrical Malfunction
  • Event did not exceed any Rule 1118 notification thresholds
  • Daily Cumulative Vent flow gas > 100,000 scf
2/26/2020 5:25:57 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/26/2020 10:18:18 AM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
N/A N/A 2/26/2020 1:30:44 PM Mechanical/Electrical Malfunction
  • VOC emitted > 100 lb for the entire event
N/A N/A 2/26/2020 1:33:38 PM Mechanical/Electrical Malfunction
  • VOC emitted > 100 lb for the entire event
2/26/2020 8:56:42 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/27/2020 1:22:17 AM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 2/28/2020 1:15:53 AM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 2/29/2020 1:17:08 AM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 3/1/2020 12:57:09 AM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
3/3/2020 4:47:28 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
3/4/2020 12:06:28 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
Not Available Not Available 3/13/2020 9:23:29 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 3/13/2020 9:32:32 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 3/14/2020 10:06:45 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
3/19/2020 8:05:38 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
3/25/2020 5:48:07 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 5/11/2020 4:09:55 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
5/24/2020 9:23:15 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
5/31/2020 3:01:11 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
6/22/2020 1:46:23 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
8/12/2020 3:53:39 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 8/19/2020 1:34:33 PM Emergency Flaring
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
Not Available Not Available 9/9/2020 7:03:12 AM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 4/14/2021 12:18:17 PM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
4/27/2021 2:16:26 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
5/21/2021 11:20:39 AM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
6/15/2021 10:31:39 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 9/17/2021 9:47:11 PM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
9/17/2021 11:22:39 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 9/18/2021 8:02:12 PM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 9/22/2021 9:35:48 AM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
10/1/2021 9:52:20 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 9/1/2022 9:05:58 PM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
9/2/2022 9:35:30 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
9/12/2022 4:22:13 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
10/6/2022 8:00:09 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
10/11/2022 9:38:35 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
Not Available Not Available 11/7/2022 5:05:18 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 12/11/2022 5:34:43 AM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
12/15/2022 8:25:37 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 1/2/2023 4:54:15 PM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/4/2023 1:09:58 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/5/2023 12:23:56 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
1/5/2023 9:12:41 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 1/5/2023 3:02:07 PM Utility Power Failure
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/9/2023 10:33:38 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
1/12/2023 7:20:51 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
1/23/2023 6:55:02 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/6/2023 9:13:45 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
2/7/2023 3:51:34 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
N/A N/A 2/21/2023 10:32:26 AM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 4/19/2023 10:31:16 AM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 5/1/2023 3:46:57 PM Emergency Flaring
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf

Did Not Occur
 Not Available Not Available 5/2/2023 4:31:52 PM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event

Did Not Occur
 Not Available Not Available 5/9/2023 9:21:49 AM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
5/17/2023 5:29:36 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
6/13/2023 5:19:18 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
8/4/2023 2:14:41 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
8/17/2023 1:00:28 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 9/4/2023 6:45:16 AM Initial determination unknown (under investigation)
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A Initial determination unknown (under investigation)
  • Daily Cumulative Vent flow gas > 100,000 scf

Did Not Occur
 Not Available Not Available 10/18/2023 6:15:03 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
10/26/2023 10:56:30 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A Initial determination unknown (under investigation)
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 11/12/2023 8:25:32 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 12/11/2023 8:04:48 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 11/26/2023 12:35:46 PM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 12/4/2023 1:29:59 PM Mechanical/Electrical Malfunction
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 12/5/2023 1:15:29 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/16/2024 4:15:40 PM Emergency Flaring
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 1/18/2024 7:41:18 PM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
1/23/2024 10:05:09 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
2/6/2024 10:58:59 AM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/6/2024 12:17:13 PM Essential Operational Need
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
2/11/2024 10:35:46 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
2/17/2024 10:58:48 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/23/2024 1:25:10 PM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
2/23/2024 4:28:57 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 2/24/2024 5:38:51 PM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
3/5/2024 6:47:45 AM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 4/7/2024 11:32:50 PM Emergency Flaring
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
4/9/2024 2:55:42 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
5/3/2024 9:29:52 AM Planned Maintenance
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
N/A N/A 5/16/2024 6:21:28 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 5/16/2024 6:22:34 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 8/9/2024 3:26:35 PM Initial determination unknown (under investigation)
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
N/A N/A 8/10/2024 12:13:33 AM Initial determination unknown (under investigation)
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
  • SOx emitted > 500 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf
8/13/2024 1:19:25 PM Start-up/Shut down
  • Vent gas flow > 500,000 SCF for the entire event
  • VOC emitted > 100 lb for the entire event
N/A N/A 9/4/2024 12:16:27 AM Initial determination unknown (under investigation)
  • VOC emitted > 100 lb for the entire event
  • Daily Cumulative Vent flow gas > 100,000 scf

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