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Level 1 Alert lasting longer than 20 minutes or with odors
Notification Only - Flaring incident at Marathon Martinez that may be Seen by the surrounding community.
October 4, 2023, 12:08 am

ISO Facilities

Interactive Map of ISO Facilities in Contra Costa

Click on the icon to get more information about one of the nine facilities regulated under the County's and the City of Richmond's Industrial Safety Ordinances (ISO). The pop-up boxes show what kind of regulated substances are at each facility. There are also quick links to other useful information about each site.

Richmond ISO: