- A broken stormwater pipe sent millions of gallons of sludge into the Dan River
- Duke Energy and regulators are coming up with a cleanup plan
- Environmental activists have concerns about drinking water and wildlife
- The river supplies water to communities in Virginia and North Carolina
The coal ash poured out of a broken pipe into the Dan River, turning water into dark muck.
It took nearly a week to stem the spill, which sent millions of gallons of sludge from a retired power plant into a river that supplies drinking water to communities in North Carolina and neighboring Virginia.