Geology and Natural Hazards
Santa Clara County is situated in one of the most geologically active regions in North America. As a matter of public safety, geologic review is required for proposed development on land located within a geologic hazard zone, or any proposed development or ground disturbance that may increase the risk of damage caused by a geologic hazard.
Other natural hazards that are evaluated with land development include wildfires and flooding. The Planning Office coordinates with other agencies in evaluating such hazards.
- Geologic Hazards and Development Review Procedures
Information about geologic hazards, report requirements and other procedural information.
- County Geologic Ordinance
Chapter IV of Division C12 of the County Ordinance Code. Adopted March 2002.
- Geologic Hazard Maps and Data
Includes maps and data and links to State of California Geological Survey sites.
- List of Certified Engineering Geologists
Licensed geologists who have indicated willingness to work on sites in Santa Clara County.
- Regional Fire Hazard Maps (ABAG)
Various fire hazard maps from the Association of Bay Area Governments.
- Flood Plain Ordinance
Santa Clara County Ordinance for Flood Hazard Areas.
Santa Clara Valley Water District Flood Protection Resource.
- Flood Maps (FEMA)
Official flood maps from the Federal Emergency Management Agency. Database searchable by street address.