// Risk Intelligence
| Risk Score | 7 / 10 High |
| Facility Type | ⚡ Power Plant / Substation |
| Operator / Branch | TC Energy |
| Host County | Tripp County SD |
| Nearest City | Pepperell MA |
| Primary Risk Radius | 800 miles |
| Secondary Risk Radius | 2400 miles |
// Strategic Significance
The Keystone Pipeline System carries Canadian tar sands oil from Alberta to Gulf Coast refineries crossing multiple major aquifers including the Ogallala Aquifer beneath the Great Plains. The 2022 Keystone spill in Kansas released 14,000 barrels of oil near a creek. The pipeline crosses the Missouri River at multiple points.
// Civilian Impact Assessment
The Ogallala Aquifer supplies 30% of US groundwater used for irrigation. A major spill into the Ogallala could contaminate the primary water source for Great Plains agriculture.
// Evacuation & Shelter Guidance
Multiple access points. State emergency management agencies coordinate with EPA and TC Energy for spill response.