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P.O. Box 609
118 West Maple Street
Centralia, WA 98531
Phone: 360-330-7662
Fax: 360-330-7673
Hours: 8 a.m. to 5 p.m., Monday-Friday
  Critical Areas

The Critical Areas Ordinance is intended to assist you, the land owner, in gathering environmental site information as you consider or plan for development on your property. All cities and counties under the Growth Management Act (GMA) are required to classify and designate critical areas through comprehensive planning and develop regulations to protect them. The CAO contains specific regulations to protect critical areas within the City of Centralia and its Urban Growth Areas (UGAs). As defined in the CAO, critical areas include the following categories and ecosystems: Wetlands Fish and Wildlife Habitat Conservation Areas Geologically Hazardous Areas - steep slopes Frequently Flooded Areas Aquifer Recharge Areas.

To view the Critical Areas Ordinance (Title 16: Environment), please click here.

To view the Critical Aquifer Map, please click here.

To vew the Steep Slopes Map (Geologicall Hazardous Areas), please click here.

To view the Wetland Map, please click here.
The approximate location and extent of wetlands in the city is displayed on the map titled Wetlands and Hydric Soils, 2001. This inventory is general and not designed to support permit applications, and does not establish jurisdictional boundaries. Furthermore, as site conditions change (due to natural and human processes), wetland areas and characteristics may change as well. The exact location of the wetland boundary shall be determined by a professional through the performance of a field investigation applying the wetland definition provided in this title. Wetlands shall be rated according to the Washington State Department of Ecology wetland rating system found in the Washington State Wetland Rating System for Western Washington (Department of Ecology Publication No. 4-06-025, August 2004).

To view the floodplain map, please click here.
Hydrologists and Floodplain Managers don't like to hear a term like "100-year flood" because, scientifically, it is a misinterpretation of terminology that leads to a misconception of what a 100-year flood really is. Instead of the term "100-year flood" we would rather describe this hydrologic event as a flood having a 100-year recurrence interval. In other words, a flood of that magnitude has a 1 percent chance of happening in any year.

 



 

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