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Boatyard General Permit

A boatyard, for the purposes of this permit, is a service business engaged in construction, repair, and maintenance of small vessels, at least 85% of which are 65 feet or less in length, or revenues from which constitute more than 85% of gross receipts. Boatyards include mobile facilities and may build a limited number of custom boats.

Boatyard operations often produce wastewater and stormwater that they must dispose of safely. In accordance with the federal Water Pollution Control Act and state Water Pollution Control laws, Ecology helps to ensure that the disposal of these wastewaters causes no harm to the environment.

Ecology requires facilities that produce the majority of that wastewater to have an NPDES (National Pollutant Discharge Elimination System) permit. NPDES permits contain specific requirements and conditions for permittees to protect rivers and other water bodies that receive wastewater discharges. More info

Current Permit

Additional Links



NEW, updated 7/16/2015 Ongoing Permit Reissuance Process

Subscribe to the Boatyard Listserv

Boatyards covered by this permit (June 8, 2015)

Environmental Excellence Award to Westport Marina (June 12, 2012)

Guidance on hull cleaning (February 2014)

Clean, Green Boating

Hull cleaning notice

Diver Advisory
(April 28, 1999)

Electronic Reporting/

Regional Contacts for questions about specific boatyards

For questions about the general permit:

Jim Maroncelli