Raw sewage spill shuts Potomac to recreation as cleanup stretches on

A major raw-sewage spill from a collapsed Potomac pipe near Cabin John (Jan. 19) has led to a river-use ban: no swimming, fishing, boating, or pet contact, as cleanup continues with DC Water using bypass pumps and a temporary canal. About 40 million gallons leaked daily at first; drinking water remains safe since intakes are upstream. E. coli near the spill spiked to 26x EPA limits, though downstream testing was safe; other bacteria linked to infections were detected. Repairs are hindered by rock in the line and could take weeks, and officials warn the river's long-term environmental impact may be significant, with renewed advisories likely as weather warms.