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:
The current Construction Stormwater General Permit (CSWGP) will expire December 31, 2015. Ecology plans to issue the new CSWGP in November 2015 with an effective date of January 1, 2016. All Permittees must reapply per Section G8 of the current permit. Reapplication Instructions and Information
Proposed Permit Documents
Current Permit Documents
Draft Permit Public Involvement
Public Comment Period July 1 - August 10, 2015
Ecology will consider all public comments before issuing the final CSWGP in December 2015, with an effective date of January 1, 2016. Written comments must be postmarked or received via email no later than August 10, 2015.
Ecology will host six public workshops to explain proposed changes to the CSWGP and answer questions. A public hearing will follow the workshop at University Place in Pierce County, allowing interested parties to provide oral testimony on the draft CSWGP.
Ecology prefers comments be submitted by email to: firstname.lastname@example.org
Submit written hard copy comments to:
Note: dates/locations subject to change. Visit our CSWGP webpage for the most up to date information.
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.
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 listserv
It’s Time to Reapply
Copyright © Washington State Department of Ecology. See http://www.ecy.wa.gov/copyright.htm