Stormwater can pick up pollution from factories and businesses. Those contaminants are carried into waterways and harm fish and other aquatic life. The Industrial Stormwater General Permit (ISGP) helps industrial facilities comply with federal regulations that reduce pollution. We require most industrial sites in Washington to monitor, measure, and reduce stormwater pollution leaving their site.
The current permit went into effect on Jan. 1, 2020 and expires Dec. 31, 2024.
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Contact information
For Permittees in the following cities and counties:
City of Seattle, Skagit, or Whatcom county
Josh Klimek
Permit Administrator
josh.klimek@ecy.wa.gov
360-407-7451
Thurston, Clark, Cowlitz, Grays Harbor, Jefferson, Lewis, Mason, Pacific, Skamania, or Wahkiakum County
Joyce Smith
Permit Administrator
joyce.smith@ecy.wa.gov
360-407-6858
Clallam, Kitsap or King County (with the exception of the City of Seattle)
Noel Tamboer
Permit Administrator
noel.tamboer@ecy.wa.gov
360-407-7229
San Juan, Island, Pierce, Kittitas, Yakima, Benton, or Klickitat County
Kendra Henderson
Permit Administrator
kendra.henderson@ecy.wa.gov
360-407-6556
Adams, Asotin, Chelan, Columbia, Douglas, Ferry, Franklin, Garfield, Grant, Lincoln, Okanogan, Pend Oreille, Snohomish, Spokane, Stevens, Walla Walla, Whatcom, Whitman, or Yakima County
Miya Spratt
Permit Administrator
miya.spratt@ecy.wa.gov
360-407-6442
Industrial Stormwater General Permit Questions:
Travis Porter
Permit Writer
travis.porter@ecy.wa.gov
360-407-6127