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Panel approves SB 831 to clarify geologic hazards mapping and definitions
Summary
SB 831 would clarify the Department of Conservation’s role and update the definition of geologic hazards to include climate‑linked conditions such as post‑fire debris flows, subsidence and inland erosion; the committee voted to send the bill to Appropriations.
Senator (author presenting as the chair’s bill) introduced SB 831 to clarify and broaden the statutory definition of geologic hazards that the California Geological Survey and Department of Conservation identify and map. The author said the change would explicitly include hazards that are becoming more common or dynamic due to climate change, such as post‑fire debris flows, coastal and inland erosion, subsidence, and other geologic conditions tied to disasters.
Adam Harper of the California Construction and Industrial Materials Association testified in support, citing the California Geological Survey’s role in post‑fire slope stability assessments, mineral mapping, liquefaction and fault identification. Harper said the Survey’s work helps inform permitting, hazard mitigation and public safety planning.
Committee members discussed fuel reduction and forest management intersections; the author and witnesses noted the Geological Survey already reviews timber harvest plans and slope stability in relevant contexts. The committee approved the bill and recommended it to Appropriations.
