This document is an NPDES (National Pollutant Discharge Elimination System) permit fact sheet for Sea-Tac International Airport, issued by the Washington State Department of Ecology. It details the locations of numerous water discharge outfalls across the airport property, covering industrial wastewater, stormwater from industrial activities, and stormwater from construction activities. The discharges flow into several local waterways including Des Moines Creek, Miller Creek, Walker Creek, Gilliam Creek, and Puget Sound.Open full document
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This draft fact sheet documents the discharge locations for NPDES Permit WA-002465-1 issued to Sea-Tac International Airport by the Washington State Department of Ecology. It lists outfall numbers, coordinates, and receiving waters for industrial wastewater, stormwater associated with industrial activities, and stormwater associated with construction activities. Receiving waters include Puget Sound, Des Moines Creek, Miller Creek, Walker Creek, and Gilliam Creek.