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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.
Tags bioretention systems geological geotechnical gis green stormwater infrastructure and 8 more
Updated
February 21 2024
Views
69

External Link
This layer displays Citywide Green Stormwater Infrastructure
Best Management Practices (City-wide GSI BMP) and Citywide Green Stormwater
Infrastructure projects (City-wide GSI Project).

Citywide GSI BMP is sourced from CARTO.GSI_BMP_PT_PV. 
Labels are based on the attribute BMP.  BMP codes listed in the BEST
MANAGED PRACTICE (GB_BMP_TEXT) field are defined as follows:



Code Value




Text Value






BIO




Bioretention, infiltrating,
installed by others






BIN




Bioretention, infiltrating, installed by SPU






BND




Bioretention, non-infiltrating, with
detention






BSU




Biofiltration swale with underdrain






BSW




Biofiltration swale without
underdrain






BUC




Bioretention swale, non-infiltrating, with underdrain in
CSO basin






BUN




Bioretention Swale, non-infiltrating,
with underdrain in non-CSO basin






CRG




Cistern to rain garden





Tags best management practice biofiltration bioretention bmp green stormwater infrastructure and 19 more
Updated
September 3 2024
Views
168

External Link
This layer displays Citywide Green Stormwater Infrastructure
Best Management Practices (City-wide GSI BMP) and Citywide Green Stormwater
Infrastructure projects (City-wide GSI Project).

Citywide GSI BMP is sourced from CARTO.GSI_BMP_PT_PV. 
Labels are based on the attribute BMP.  BMP codes listed in the BEST
MANAGED PRACTICE (GB_BMP_TEXT) field are defined as follows:



Code Value




Text Value






BIO




Bioretention, infiltrating,
installed by others






BIN




Bioretention, infiltrating, installed by SPU






BND




Bioretention, non-infiltrating, with
detention






BSU




Biofiltration swale with underdrain






BSW




Biofiltration swale without
underdrain






BUC




Bioretention swale, non-infiltrating, with underdrain in
CSO basin






BUN




Bioretention Swale, non-infiltrating,
with underdrain in non-CSO basin






CRG




Cistern to rain garden





Tags best management practice biofiltration bioretention bmp green stormwater infrastructure and 19 more
Updated
September 3 2024
Views
83

External Link
This layer displays Citywide Green Stormwater Infrastructure
Best Management Practices (City-wide GSI BMP) and Citywide Green Stormwater
Infrastructure projects (City-wide GSI Project).

Citywide GSI BMP is sourced from CARTO.GSI_BMP_PT_PV. 
Labels are based on the attribute BMP.  BMP codes listed in the BEST
MANAGED PRACTICE (GB_BMP_TEXT) field are defined as follows:



Code Value




Text Value






BIO




Bioretention, infiltrating,
installed by others






BIN




Bioretention, infiltrating, installed by SPU






BND




Bioretention, non-infiltrating, with
detention






BSU




Biofiltration swale with underdrain






BSW




Biofiltration swale without
underdrain






BUC




Bioretention swale, non-infiltrating, with underdrain in
CSO basin






BUN




Bioretention Swale, non-infiltrating,
with underdrain in non-CSO basin






CRG




Cistern to rain garden





Tags best management practice biofiltration bioretention bmp green stormwater infrastructure and 19 more
Updated
September 3 2024
Views
60

External Link
The RainWise program helps eligible property owners manage stormwater by installing rain gardens and/or cisterns on private property. The program is jointly funded by King County and SPU as part of the effort to manage 700 million gallons of storm runoff using green infrastructure by 2025. Property owners must live in selected Combined Sewer Overflow basins to be eligible.
Tags best management practice biofiltration bioretention bmp green stormwater infrastructure and 19 more
Updated
September 3 2024
Views
83