If your project will (1) disturb one or more acres of land and will discharge stormwater from the site or (2) is part of a larger common plan of development or sale that has disturbed or ultimately will disturb one or more acres of land and will discharge stormwater from the site; then coverage under a Washington State Department of Ecology (Ecology) Construction Stormwater General Permit (CSWGP) may be required.

• Contact Ecology at (360) 407-6556 for information and to obtain a permit application form (called “Notice of Intent” or “NOI”) or apply online here
• Application forms for the CSWGP are available to download here
• The Ecology guidebook explaining the permit requirements can be found here

Please note:

• City of Tacoma permit approval does not release the applicant from state or other permitting requirements.
• To obtain Ecology CSWGP coverage, a public notice must be published at least once a week for two consecutive weeks with seven days between publications, in at least a single newspaper of general circulation in the county in which the construction is to take place.
• Ecology cannot grant permit coverage sooner than the end of the 30-day public comment period, which begins on the date of the second public notice.