// Risk Intelligence
| Risk Score | 7 / 10 High |
| Facility Type | 💧 Water Treatment Facility |
| Operator / Branch | Seattle Public Utilities |
| Host County | King County WA |
| Nearest City | Washington DC |
| Primary Risk Radius | 25 miles |
| Secondary Risk Radius | 75 miles |
// Strategic Significance
Seattle Public Utilities Cedar River Watershed supplies water to 1.4 million people in the greater Seattle area. The watershed is entirely closed to public access to protect water quality. Cascadia Subduction Zone earthquake damage to the Cedar River pipeline and treatment facilities could interrupt water service to the region. Wildfire in the watershed would contaminate the water supply.
// Civilian Impact Assessment
Seattle metro with 1.4 million customers. Cascadia earthquake could rupture the Cedar River pipeline at multiple crossing points. Wildfire in the closed watershed would contaminate the primary water source.
// Evacuation & Shelter Guidance
I-90, Cedar River Road. King County Emergency Management coordinates earthquake and water supply emergency protocols.