Flare

BAAQMD Refinery Flare Emission Report
Report Settings
Marathon / Tesoro - Main Refinery
Download CSV
December - 2023
Date Vent Gas Flow Methane NMHC Sulfur Dioxide
(mo/day/yr) (volume in SCFD) See note **** (lbs) (lbs) (lbs)
12/1/2023 2,993,175.00 392.00 296.00 8.00
12/2/2023 982,783.00 119.00 134.00 3.00
12/3/2023 0.00 78.00 0.00 0.00
12/4/2023 185.00 78.00 0.00 0.00
12/5/2023 0.00 78.00 0.00 0.00
12/6/2023 0.00 78.00 0.00 0.00
12/7/2023 0.00 78.00 0.00 0.00
12/8/2023 0.00 78.00 0.00 0.00
12/9/2023 0.00 78.00 0.00 0.00
12/10/2023 0.00 78.00 0.00 0.00
12/11/2023 0.00 78.00 0.00 0.00
12/12/2023 0.00 78.00 0.00 0.00
12/13/2023 4,249,102.00 288.00 354.00 14.00
12/14/2023 6,059,724.00 380.00 240.00 13.00
12/15/2023 5,565,259.00 354.00 252.00 20.00
12/16/2023 5,259,705.00 358.00 297.00 17.00
12/17/2023 5,158,953.00 392.00 327.00 13.00
12/18/2023 5,530,012.00 421.00 333.00 14.00
12/19/2023 4,614,413.00 272.00 384.00 14.00
12/20/2023 121,874.00 49.00 12.00 4.00
12/21/2023 99,782.00 20.00 9.00 3.00
12/22/2023 0.00 78.00 0.00 0.00
12/23/2023 0.00 78.00 0.00 0.00
12/24/2023 0.00 78.00 0.00 0.00
12/25/2023 0.00 78.00 0.00 0.00
12/26/2023 0.00 78.00 0.00 0.00
12/27/2023 864,510.00 56.00 74.00 3.00
12/28/2023 0.00 78.00 0.00 0.00
12/29/2023 718,005.00 139.00 71.00 1.00
12/30/2023 0.00 78.00 0.00 0.00
12/31/2023 0.00 78.00 0.00 0.00
December Totals 42,217,482.00 4,644.00 2,783.00 127.00
  • * Natural gas is used for both pilot and purge gas for the refinery flare system, except for the Emergency Flare and East Air Flare (Maintenance) that uses nitrogen as purge gas.
    The flow is determined using an orifice calculation based on the orifice size in the lines and the line pressure upstream of the orifice.

    **** Vent Gas Flow is vent gas to air flares and DCU flare instead of sum of flare header flows
    In the case of an invalid sample, the monthly average was used for composition data
Marathon / Tesoro Main Refinery Flare Report 12/1/2023 - 12/31/2023
 
 

Contact Us

Communications
General Information

415.749.4900

Meteorology & Measurements
Air Monitoring

415.749.4985

Contact Us

Spare the Air Status

Last Updated: 4/13/2023