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BAAQMD Refinery Flare Emission Report
Report Settings
Chevron Richmond - Hydrogen H2
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October - 2025
Date Vent Gas Flow Methane NMHC Sulfur Dioxide
(mo/day/yr) (volume in scf) See notes 6,7 (lbs) (lbs) (lbs)
10/1/2025 20,312,988.42 2,897.22 159.99 32.12
10/2/2025 5,956,939.00 1,337.12 66.61 13.41
10/3/2025 130,883.94 70.00 12.51 0.32
10/4/2025 134,186.50 71.14 12.73 0.34
10/5/2025 130,580.87 68.97 13.19 0.33
10/6/2025 134,732.70 72.11 13.29 0.33
10/7/2025 136,490.89 73.13 12.77 0.34
10/8/2025 101,521.85 58.52 8.75 0.20
10/9/2025 85,257.16 52.11 6.86 0.13
10/10/2025 114,859.87 70.22 9.97 0.19
10/11/2025 126,201.58 76.45 10.81 0.20
10/12/2025 115,930.82 70.64 10.49 0.19
10/13/2025 116,465.74 71.39 10.25 0.18
10/14/2025 148,719.84 91.83 14.00 0.23
10/15/2025 132,641.84 74.59 13.43 0.25
10/16/2025 140,721.75 74.78 14.56 0.29
10/17/2025 182,247.40 81.25 23.30 0.75
10/18/2025 149,506.41 78.34 13.20 0.31
10/19/2025 153,359.24 78.23 15.39 0.32
10/20/2025 167,577.22 84.32 18.68 0.36
10/21/2025 151,186.73 78.60 12.51 0.30
10/22/2025 147,069.52 76.22 11.28 0.29
10/23/2025 134,311.07 69.39 12.32 0.31
10/24/2025 118,406.15 63.60 10.42 0.25
10/25/2025 136,042.22 71.23 12.12 0.28
10/26/2025 154,340.19 80.80 11.85 0.29
10/27/2025 179,157.08 91.92 15.05 0.35
10/28/2025 155,428.16 82.35 12.72 0.29
10/29/2025 129,282.36 65.62 10.38 0.23
10/30/2025 131,953.55 69.65 10.93 0.25
10/31/2025 151,552.35 79.61 11.91 0.28
October Totals 30,260,542.42 6,381.35 592.27 53.91
  • (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 10/1/2025 - 10/31/2025
 
 

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Last Updated: 4/13/2023