Flare

BAAQMD Refinery Flare Emission Report
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Marathon / Tesoro - Main Refinery
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May - 2023
Date Vent Gas Flow Methane NMHC Sulfur Dioxide
(mo/day/yr) (volume in SCFD) See note **** (lbs) (lbs) (lbs)
5/1/2023 1,152,603.33 545.20 307.28 3.58
5/2/2023 1,644.86 52.43 0.26 0.00
5/3/2023 569.09 51.63 0.09 0.00
5/4/2023 0.00 51.22 0.00 0.00
5/5/2023 0.00 51.22 0.00 0.00
5/6/2023 1,285.21 52.15 0.20 0.00
5/7/2023 240,268.12 149.91 39.79 1.14
5/8/2023 4,506,374.33 951.29 324.11 171.48
5/9/2023 3,245,362.42 1,041.56 323.03 8.79
5/10/2023 3,470,633.49 1,203.11 376.76 9.14
5/11/2023 3,253,530.82 1,198.06 347.19 9.09
5/12/2023 2,609,960.51 1,251.00 426.06 8.00
5/13/2023 2,622,715.06 1,320.67 398.94 10.36
5/14/2023 2,407,580.97 1,233.59 448.54 8.00
5/15/2023 621,004.56 356.38 97.62 1.73
5/16/2023 18,677.10 64.66 2.70 0.07
5/17/2023 9,278.95 57.88 1.36 0.03
5/18/2023 6,942.75 56.43 1.01 0.03
5/19/2023 0.00 51.19 0.00 0.00
5/20/2023 2,075.62 52.73 0.29 0.01
5/21/2023 1,580.62 52.35 0.21 0.01
5/22/2023 0.00 51.17 0.00 0.00
5/23/2023 1,137.13 52.05 0.14 0.00
5/24/2023 0.00 51.22 0.00 0.00
5/25/2023 0.00 51.23 0.00 0.00
5/26/2023 0.00 51.23 0.00 0.00
5/27/2023 147.31 51.33 0.02 0.00
5/28/2023 0.00 51.23 0.00 0.00
5/29/2023 0.00 51.22 0.00 0.00
5/30/2023 178.41 51.36 0.02 0.00
5/31/2023 0.00 51.22 0.00 0.00
May Totals 24,173,550.66 10,357.92 3,095.62 231.46
  • * Natural gas is used for both pilot and purge gas for the refinery flare system, except for the Emergency Flare, North and South Steam Flares, 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 5/1/2023 - 5/31/2023
 
 

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Last Updated: 4/13/2023