A spill from a damaged sewer released more than 500 gallons of untreated wastewater into Bolin Creek on Friday.
Orange Water and Sewer Authority personnel responded to the spill on Friday after a citizen reported it at 2:45 p.m.
OWASA stopped the spill at 4:10 p.m. after plugging an upstream manhole.
Officials believe the spill — near Fordham Boulevard in Chapel Hill — began Thursday night after flash flooding and debris dislodged a support pier and caused the sewer pipe to break open.