When 240 million gallons of raw sewage spilled into the Potomac River in Washington, D.C., starting in mid-January 2026 and running through mid-March, it was estimated to be the largest sewage spill in U.S. history. But it wasn't the first, nor will it be the last.

When 240 million gallons of raw sewage spilled into the Potomac River in Washington, D.C., starting in mid-January 2026 and running through mid-March, it was estimated to be the largest sewage spill in U.S. history. But it wasn’t the first, nor will it be the last.

In fact, around the nation, sewage spills are contaminating waterways and communities with unsettling frequency.