Nearly 300 million gallons of sewage has entered Potomac River, environmental group says

The Brief Tests show E. coli levels nearly 12,000 times above safe limits after the Potomac sewage spill. Nearly 300 million gallons of sewage have entered the river, environmental officials say. The Potomac Riverkeeper Network says new water‑sampling results from a recent sewage spill shows far more severe contamination than first believed. What we know:Tests found E. coli levels nearly 12,000 times higher than what’s considered safe for human contact, and nearly 300 million gallons of sewage have already entered the Potomac River, the group said on Tuesday. Potomac Riverkeeper Network officals warn the long‑term environmental impact could be significant, citing real‑time testing conducted on January 23.