ECA Peat Settlement Prone Areas

Peat-settlement-prone areas (sites containing peat and organic soils that may settle when the area is developed or the water table is lowered).Peat settlement-prone areas. Peat settlement-prone areas consist of Category I and Category II peat settlement-prone areas that are delineated on Maps A1 through A26, Peat Settlement-prone Area Boundaries Maps, codified at the end of thisĀ Chapter 25.09. This parcel-specific delineation is based on the location of the relevant bog or bogs identified in City of Seattle Identified Bogs (Troost 2007) plus a buffer of 50 feet for Category I peat settlement-prone areas or a buffer of 25 feet for Category II peat settlement-prone areas. On parcels larger than 50,000 square feet, the Director may consider a parcel-specific delineation, provided by the applicant, of the peat settlement-prone area boundary on a parcel. Where a parcel-specific delineation conflicts with the Peat Settlement-prone Area Boundaries Maps, the parcel-specific delineation shall apply.For more information about the definition of peat settlement prone areas, seeĀ Seattle Municipal Code section 25.09.012, Environmentally Critical Areas (ECA) definitions.Updated as needed.

Data and Resources

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Field Value
Source https://cos-data.seattle.gov/resource/4r2t-vxes
Author Allen Grissom
Last Updated July 22, 2025, 19:41 (UTC)
Created July 22, 2025, 19:41 (UTC)
Contact Email mailto:mapgis.mapgis@seattle.gov
Contact Name SDCI_SeattleCityGIS
Geographic Coverage -122.4067,47.5159,-122.2468,47.7248
Homepage https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::eca-peat-settlement-prone-areas-1
Issued 2023-07-11T15:52:45.000Z
Last Update 2024-08-08T20:29:40.316Z
License <span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>The City of Seattle makes no representation or warranty as to its accuracy, and in particular, its accuracy as to labeling, dimensions, contours, property boundaries, or placement or location of any map feature thereof.</span>
Public Access Level public
Publisher City of Seattle ArcGIS Online
Theme geospatial
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