// Risk Intelligence
| Risk Score | 8 / 10 High |
| Facility Type | 💧 Water Treatment Facility |
| Operator / Branch | Seattle Public Utilities |
| Host County | King County WA |
| Nearest City | Washington DC |
| Primary Risk Radius | 5 miles |
| Secondary Risk Radius | 20 miles |
// Strategic Significance
Seattle Public Utilities serves 1.4 million residents drawing water from the Cedar River and South Fork Tolt River watersheds in the Cascade Mountains. A major Cascadia earthquake could rupture Seattle water transmission mains and damage the Cedar River facilities. Climate change is reducing Cascade snowpack threatening summer water supplies. The Cedar River watershed is protected from development but wildfire risk is increasing in the Cascades.
// Civilian Impact Assessment
Seattle metro with 4 million residents. Cascadia earthquake could rupture water transmission mains leaving Seattle without water. Cascade snowpack decline threatens summer water supplies. Cedar River wildfire risk is increasing with climate change.
// Evacuation & Shelter Guidance
I-5, SR-520, Cedar River Watershed, Cascade Mountains. King County Emergency Management coordinates Cascadia earthquake wildfire drought and water system protocols.