This document is a fact sheet accompanying an NPDES (National Pollutant Discharge Elimination System) permit issued to the Port of Seattle for Seattle-Tacoma International Airport, governing how the airport manages and discharges treated industrial wastewater and stormwater. It covers discharge locations into Puget Sound, Des Moines Creek, Miller Creek, and the City of SeaTac storm sewer system, and establishes effluent limitations and monitoring requirements. The permit addresses water quality standards, pollution prevention plans, and compliance schedules to protect surrounding waterways from airport-related contaminants.Open full document
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This fact sheet accompanies NPDES Permit No. WA-002465-1 issued to the Port of Seattle for the Seattle-Tacoma International Airport. It establishes the basis for effluent limitations and other requirements governing the discharge of treated industrial wastewater to Puget Sound and stormwater to Miller Creek, Des Moines Creek, and the City of SeaTac storm sewer. The document includes discharge locations, water body IDs, and a table of contents covering technology-based and surface water quality-based effluent limitations.