// Risk Intelligence
| Risk Score | 8 / 10 High |
| Facility Type | ⚠ Superfund / Contamination Site |
| Operator / Branch | Honeywell / EPA |
| Host County | Onondaga County NY |
| Nearest City | Pepperell MA |
| Primary Risk Radius | 5 miles |
| Secondary Risk Radius | 25 miles |
// Strategic Significance
Onondaga Lake near Syracuse was called the most polluted lake in America for decades. Allied Chemical and Honeywell deposited mercury along with industrial waste making the lake a dead zone from 1901 to the 1990s. Mercury concentrations remain elevated in fish decades after cleanup began. The lake is adjacent to the city of Syracuse.
// Civilian Impact Assessment
Onondaga County residents near the lake face ongoing mercury exposure through fish consumption. The lake serves as a regional recreational resource with ongoing fish consumption advisories.
// Evacuation & Shelter Guidance
Onondaga County residents should follow NYSDEC fish consumption advisories for Onondaga Lake. No-take restrictions remain for certain species.