The state Department of Ecology has fined the Port of Seattle and two contractors $20,000 for water quality violations at Sea-Tac International Airport.
Ecology found that the port, which operates the airport, and the contractors allowed four releases of muddy stormwater from Sea-Tac north expressway project into storm systems that drain to Gilliam Creek and Des Moines Creek.
The violations occurred in November and December 2006, and January and August this year.