Flare

BAAQMD Refinery Flare Emission Report
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Chevron Richmond - Hydrogen H2
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April - 2026
Date Vent Gas Flow Methane NMHC Sulfur Dioxide
(mo/day/yr) (volume in scf) See notes 6,7 (lbs) (lbs) (lbs)
4/1/2026 73,712.00 42.00 6.00 0.09
4/2/2026 74,134.00 42.00 6.00 0.08
4/3/2026 78,944.00 45.00 7.00 0.09
4/4/2026 77,464.00 44.00 8.00 0.11
4/5/2026 79,142.00 44.00 7.00 0.10
4/6/2026 75,432.00 43.00 6.00 0.08
4/7/2026 83,553.00 48.00 6.00 0.07
4/8/2026 81,143.00 47.00 5.00 0.07
4/9/2026 74,842.00 43.00 5.00 0.07
4/10/2026 80,629.00 48.00 6.00 0.05
4/11/2026 89,067.00 53.00 6.00 0.07
4/12/2026 84,614.00 49.00 6.00 0.07
4/13/2026 155,454.00 79.00 18.00 0.25
4/14/2026 86,896.00 52.00 6.00 0.08
4/15/2026 80,815.00 49.00 6.00 0.07
4/16/2026 76,024.00 46.00 5.00 0.06
4/17/2026 63,616.00 40.00 5.00 0.05
4/18/2026 47,439.00 31.00 3.00 0.03
4/19/2026 48,039.00 31.00 3.00 0.03
4/20/2026 49,259.00 32.00 4.00 0.03
4/21/2026 26,485.00 17.00 2.00 0.02
4/22/2026 34,293.00 22.00 3.00 0.06
4/23/2026 54,374.00 34.00 4.00 0.09
4/24/2026 62,230.00 38.00 5.00 0.11
4/25/2026 47,396.00 29.00 4.00 0.10
4/26/2026 47,565.00 29.00 4.00 0.09
4/27/2026 60,588.00 36.00 5.00 0.12
4/28/2026 80,175.00 37.00 5.00 0.17
4/29/2026 47,820.00 29.00 4.00 0.10
4/30/2026 48,238.00 30.00 3.00 0.10
April Totals 2,069,382.00 1,209.00 163.00 2.51
  • (1) Sample(s) collected during release event used to calculate emissions
    (2) No sample collected during release event. Used another sample from the same day
    (3) No sample collected during release event. Used mass spec composition data.
    (4) No sample collected during release event. Used another representative sample based on engineering judgment.
    (5) No sample collected during release event. Used 12-month rolling emission factor based on the flaring events > 1 MMSCFD
    (6) No sample collected during release event. Used 12-month rolling emission factor
    (7) Negative meter noise overwritten as zero.
    (8) Positive meter noise <0.5 ft/sec="" overwritten="" as="">
    (9) Removed raw readings > 0.5 ft/sec that did NOT represent real flow to flare. Monitoring indicates vent gas pressure was not sufficient to break water seal.
    (10) Vent gas volume based on engineering judgment during periods of monitor inoperation
Chevron Richmond Hydrogen H2 Flare Report 4/1/2026 - 4/30/2026
 
 

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Last Updated: 4/13/2023