RALEIGH — An estimated 21,600 gallons of sewage reached an unnamed tributary of Richland Creek in Wake Forest over the weekend after an 8-inch sewer pipe became plugged up with grease, according to the Raleigh Public Utilities Department.
The clogged pipe had been leaking for an estimated 36 hours when a resident on Tillamook Drive in Wake Forest called to report it at 2 p.m. Saturday, according to the utilities department. Workers had the leak under control by 4:30 p.m. and most of the cleanup work was completed by 9 p.m.
Congealed grease is a common source of blocked sewage pipes, and for years Raleigh has admonished residents not to dump grease and fat down their drains. City officials say only water, human waste and toilet paper are permitted to be discharged into the sewer system.
Raleigh provides water and sewer service to six Wake County towns, including Wake Forest.