Notice: All Ecology offices remain closed to walk-in service due to COVID-19.
The Industrial Stormwater eCoverage Packet outlines your responsibilities and requirements once you are covered under the Industrial Stormwater General Permit (ISGP).
We are currently in the process of switching from paper copies of this information to an electronic permit coverage packet. If you are a permittee and would like a paper copy, please contact your Permit Administrator or call the Water Quality Program front reception at 360-407-6600.
Key requirements for all permittees: