This is a National Pollutant Discharge Elimination System (NPDES) water discharge permit issued by the Washington State Department of Ecology to the Port of Seattle for Seattle-Tacoma International Airport, effective October 1, 2003 through September 4, 2008. The permit governs how the airport is authorized to discharge industrial wastewater and stormwater runoff into surrounding water bodies, including Puget Sound, Des Moines Creek, Miller Creek, and Walker Creek. It sets out special conditions covering discharge limitations, monitoring requirements, toxicity testing, and operations and maintenance standards to protect water quality in the region.Open full document
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NPDES waste discharge permit issued by the Washington State Department of Ecology to Port of Seattle for Sea-Tac International Airport. The permit authorizes discharge of process wastewater to Puget Sound and stormwater to Des Moines Creek, Miller Creek, Walker Creek, and other receiving waters. It includes special conditions covering discharge limitations, monitoring requirements, toxicity testing, operations and maintenance, and sediment monitoring.