Infiltration Potential

Planning level Infiltration Potential - NOT FOR ENGINEERING DESIGN. A starting point to determine if a Seattle modified PIT test should be considered for a site under development that is considering infiltration using green stormwater infrastructure or low impact development techniques. See PIT test information in the 2009 Stormwater Directors' Rule - Volume 3: Stormwater Flow Control and Water Quality Treatment Appendix E: City of Seattle Modified Procedure for Conducting a Pilot Infiltration Test. Uses data from UTIL.UW_INFILTRATION, symbolized based on PERMEABILITY field.

Data and Resources

Additional Info

Field Value
Source https://cos-data.seattle.gov/resource/4r2a-ygsa
Author Allen Grissom
Last Updated July 22, 2025, 19:44 (UTC)
Created July 22, 2025, 19:44 (UTC)
Contact Email mailto:mapgis.mapgis@seattle.gov
Contact Name PublicUtilities_SeattleCityGIS
Geographic Coverage -122.4387,47.4922,-122.2391,47.7517
Homepage https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::infiltration-potential
Issued 2024-02-20T23:09:14.000Z
Last Update 2024-02-21T00:33:26.060Z
License <div>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.</div>
Public Access Level public
Publisher City of Seattle ArcGIS Online
Theme geospatial
Unique Identifier https://www.arcgis.com/home/item.html?id=e5b9cde0246a4428bb51668a289c12fb&sublayer=0
harvest_object_id 945c6cf0-ea85-40d1-bcf3-e5af5045f786
harvest_source_id 5365fd4f-4dee-4a64-8b1c-c2025205baa9
harvest_source_title seattle