Spills · chemical

8GR7+R7 pascagoula, ms, USA

Hydrogen Sulfide Release At Refinery; Pascagoula, Mississippi · NOAAORR-11094

issued: 2025-12-29 00:00Z
status: cancelled 2026-01-12 00:00Z
self-cancels: 2026-01-12 00:00Z
authority: NOAA OR&R
sea: Gulf of Mexico
position: 30.342, -88.487
source: incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Hydrogen Sulfide Release at Refinery; Pascagoula, Mississippi.
8GR7+R7 Pascagoula, MS, USA.
1. On Dec. 29, 2025, U.S. Coast Guard Sector Mobile contacted the NOAA Scientific Support Coordinator (SSC) regarding a fugitive air release of Hydrogen Sulfide (H2S) gas from the Chevron Pascagoula refinery. The release was reported to be ~115 lbs of H2S. The SSC provided hazard assessment and recommendations for monitoring and source confirmation. Upon follow-up with Chevron personnel, the source was reported to have been secured and no levels of H2S were observed above any action limits. No further support is anticipated.
2. THREAT: CHEMICAL. COMMODITY: HYDROGEN SULFIDE.
3. POSITION 30.342N 088.487W. NOAA INCIDENTNEWS 11094: https://incidentnews.noaa.gov/incident/11094

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