Municipal Stormwater Permit Outfall Data

Published by data.wa.gov | State of Washington | Metadata Last Checked: November 21, 2025 | Last Modified: 2025-11-21

Special Condition S8.D of the 2007-2012 Phase I Municipal Stormwater Permit required permittees to collect and analyze data to evaluate pollutant loadings of stormwater discharged from different land uses: high density (HD) residential, low density (LD) residential, commercial, and industrial. To meet the S8.D requirement, Phase I Permittees collected water quality and flow data, sediment data, and toxicity information from stormwater discharges during storm events.

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Complete Metadata

identifier	https://data.wa.gov/api/views/d958-q2ci
issued	2015-05-01
landingPage	https://data.wa.gov/d/d958-q2ci
theme	[ "Natural Resources & Environment" ]