This is a National Pollutant Discharge Elimination System (NPDES) waste discharge permit issued by the Washington State Department of Ecology to the Port of Seattle for SeaTac International Airport, originally effective October 1, 2003. The permit regulates the discharge of industrial wastewater and stormwater into receiving waters including Puget Sound, Des Moines Creek, Miller Creek, Walker Creek, and other local waterways. It sets effluent limits, monitoring requirements, and operational standards for the airport's Industrial Wastewater System to protect water quality in the surrounding region.Open full document
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This is a draft NPDES waste discharge permit issued by the Washington State Department of Ecology to the Port of Seattle for SeaTac International Airport. The permit authorizes discharges of industrial wastewater (process wastewater to Puget Sound) and stormwater to multiple receiving waters including Des Moines Creek, Miller Creek, Walker Creek, and others. The document includes special conditions covering discharge limitations, monitoring requirements, toxicity testing, operations and maintenance, and sediment monitoring.