Clean Harbors North Sitka Street 10-Day Hazardous Waste Transfer Facility Stormwater Outfall, Anchorage, Alaska

Clean Harbors North Sitka Street 10-Day Hazardous Waste Transfer Facility is a stormwater outfall located in Anchorage, Alaska, within the Anchorage Municipality. This facility manages stormwater runoff from a hazardous waste transfer operation, classified under NAICS 562112 (Hazardous Waste Treatment and Disposal). As a stormwater outfall, it discharges collected runoff into local waterways, operating under the regulatory framework of the US Clean Water Act and EPA NPDES MS4 permits. The facility's primary technical function is to convey stormwater from the industrial site, with potential for pollutant loading from hazardous materials handling. In Alaska, stormwater management is critical due to sensitive aquatic ecosystems and permafrost-influenced hydrology. Operationally, this outfall contributes to the broader stormwater infrastructure of Anchorage, a city subject to Phase II MS4 requirements due to its population. The facility's location in an industrial area near urban development increases the risk of stormwater contamination. Proper management is essential to protect downstream water quality in Cook Inlet and support community and environmental health.

Anchorage's stormwater systems face challenges from urban runoff, industrial activities, and cold-climate hydrology. The facility's discharge may enter waters that ultimately flow into Cook Inlet, a productive estuary supporting salmon and marine life. Industrial stormwater from hazardous waste sites requires stringent controls to prevent contamination from heavy metals, hydrocarbons, and other pollutants. Regulatory compliance under the Clean Water Act is critical to mitigate impacts on aquatic habitats and drinking water sources.