California county profile
Sacramento County's environmental review is defined by flood risk at a scale unusual for California — the county borders major rivers and operates an expanded floodplain ordinance — along with a Wild and Scenic corridor along the American River that limits what can happen near its banks.
Sacramento is one of the highest-flood-risk metros in the country, and the county's floodplain ordinance covers locally designated hazard areas beyond federal flood maps, with a freeboard standard that exceeds the federal minimum.
The corridor along the American River is governed by its own plan with separate requirements, and a portion carries a federal Wild and Scenic designation that prohibits projects interfering with its recreational, water quality, or free-flowing character.
The county's Sacramento-San Joaquin Delta portions fall under oversight from the Delta Protection Commission — an additional approval track on top of county permits for any land use change in the delta zone.
The county protects native oaks above a modest trunk diameter, and replacement is proportional to the removed tree's size — removing a large heritage oak can trigger a significant replanting obligation or an in-lieu payment into the county's tree fund.
The county's southern portions fall under a regional habitat conservation plan that was the first in the nation to bundle both federal wetland and endangered species permits into a single approval — projects there need to coordinate with the plan before ground disturbance.
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Screen an addressSource: Headlands Environmental — environmental site screening for California. Rules summarized from publicly available county codes and planning documents; project review counts indexed from the State Clearinghouse. For authoritative requirements, consult Sacramento County directly.