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Manhattan Beach details post-refinery alert upgrades after Chevron IsoMAX fire

Manhattan Beach City Council · March 4, 2026
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Summary

After the Oct. 2 IsoMAX fire at the Chevron El Segundo refinery, city and regional partners described new notification protocols: holding-statement templates, enhanced SOPs across Alert South Bay, IPAWS/WEA geofenced warnings, Genesis Protect zone mapping and staffing improvements to enable faster, more coordinated alerts.

City emergency-management staff and regional partners told the City Council on March 3 that they have implemented a suite of changes to strengthen rapid notifications to residents after the October 2025 Chevron IsoMAX unit fire.

Alexandria Letronia, the city's communications and civic engagement manager, described a multi-layered alert strategy that combines Alert South Bay (the regional Everbridge instance), the federal Integrated Public Alert and Warning System (IPAWS/WEA), MBTV, social media, push-notification apps, and physical message boards. "Alert South Bay is a regional system that is utilized by 15 cities in the South Bay region," she said.

Brian Stock, director of Chevron's El Segundo refinery,…

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