HazMat and CUPA Public Records
An important responsibility our Unit has as the Certified Unified Program Agency (CUPA) is sharing responsibility with the public on facilities within their community that handle hazardous materials under the California Public Records Act (PRA).
HazMat CUPA Facility Information Search
Many facility records are available electronically, and you may search our HazMat CUPA Public Access Viewer to search our database.
Public Records Act (PRA) Request
If the information you are interested in is not available or you need more information than is available via the HazMat CUPA Public Access Viewer, please submit a Public Records Act (PRA) Request.
Other Resources for Information
Sonoma County Environmental Health
- UST Files prior to 1997
- LOP and Groundwater Contamination
California Environmental Reporting System (CERS)
Information submitted to the California Environmental Reporting System has a public portal.