Flare

BAAQMD Refinery Flare Emission Report
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Chevron Richmond - Hydrogen H2
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May - 2026
Date Vent Gas Flow Methane NMHC Sulfur Dioxide
(mo/day/yr) (volume in scf) See notes 6,7 (lbs) (lbs) (lbs)
5/1/2026 44,853.69 28.08 3.27 0.09
5/2/2026 42,137.63 26.36 3.07 0.08
5/3/2026 43,967.34 26.80 3.75 0.09
5/4/2026 56,757.59 30.95 4.17 0.11
5/5/2026 46,262.16 28.44 3.89 0.09
5/6/2026 48,935.59 30.27 3.91 0.10
5/7/2026 79,312.20 46.05 6.60 0.19
5/8/2026 94,523.82 52.54 8.43 0.24
5/9/2026 92,341.41 51.34 8.21 0.23
5/10/2026 95,259.65 52.96 8.47 0.23
5/11/2026 89,214.17 50.79 7.63 0.22
5/12/2026 93,383.40 52.16 9.31 0.26
5/13/2026 98,832.52 52.19 10.38 0.28
5/14/2026 92,064.43 50.33 10.34 0.27
5/15/2026 96,408.88 52.96 11.09 0.28
5/16/2026 97,245.88 52.99 11.22 0.28
5/17/2026 115,924.54 61.97 15.63 0.39
5/18/2026 97,481.44 57.17 8.63 0.21
5/19/2026 96,849.03 56.17 8.98 0.21
5/20/2026 96,950.98 56.27 8.18 0.20
5/21/2026 93,695.02 54.49 7.50 0.19
5/22/2026 91,935.50 54.43 7.40 0.19
5/23/2026 94,561.85 56.02 7.75 0.19
5/24/2026 93,797.18 55.15 7.87 0.20
5/25/2026 94,567.70 55.33 7.93 0.20
5/26/2026 98,034.37 56.41 8.44 0.22
5/27/2026 96,250.91 53.40 8.97 0.22
5/28/2026 93,342.63 52.59 8.74 0.21
5/29/2026 96,538.66 54.67 9.34 0.22
5/30/2026 95,425.27 53.05 10.01 0.24
5/31/2026 96,900.82 54.12 9.21 0.22
May Totals 2,663,756.26 1,516.45 248.32 6.35
  • (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 5/1/2026 - 5/31/2026
 
 

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Last Updated: 4/13/2023