D.C. region leaders said the cost of repairing the massive Potomac Interceptor sewer line break continues to rise, and new testing could soon reveal the full impact of the January spill.

The Potomac Riverkeeper Network says sewage carrying dangerous levels of E. coli is leaking from the C&O Canal bypass system.

Photos show the geotubes, which help shield a vulnerable stretch of Sconset Bluff, cut open, and a private investigator believes the damage was deliberate. The post Authorities look into possible ...