Construction Stormwater General Permit
Construction site operators are required to be covered by a Construction Stormwater General Permit if they are engaged in clearing, grading, and excavating activities that disturb one or more acres and discharge stormwater to surface waters of the state. Smaller sites may also require coverage if they are part of a larger common plan of development that will ultimately disturb one acre or more. Operators of regulated construction sites are required to:
Contact Us - Contact your Permit Administrator for permit assistance or your Regional Office for site specific questions.
Permit, Forms and Application - Permit, application, forms, and appeal information.
Resources and Guidance - DMRs, Stormwater monitoring, manuals, 303(d) list information.CESCL Database
Historical Information - Pollution Control Hearing Board information, public comments.
Get Ecology updates about the Construction Stormwater General Permit - Sign up for the Construction Stormwater General Permit email list
Construction Stormwater General Permit Application Status - Check the status of your application.
Stormwater Pollution Prevention Plan Template - To use this template, save to your computer.
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