Summary: Peat settlement-prone environmentally critical areas are areas of Seattle that contain substantial deposits of peat-rich soils that are prone to settlement. These areas receive protection under Seattleā€™s Environmentally Critical Areas Ordinance (Seattle Municipal Code 25.09). If you are planning to develop property in a peat settlement-prone area you should consult this Tip to understand how these regulations may affect the maintenance and redevelopment of the property.

Date Revised: 03/31/2022

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