More than 40,000 gallons of partially-treated sewage reached Sugar Creek early Tuesday, Charlotte-Mecklenburg Utilities said.
The sewage from the Sugar Creek wastewater plant had gone through all treatment stages except disinfection, the utility said. Its not regarded as a sewage spill under N.C. law.
Debris blocked a transmitter than monitors wastewater flows, the utility said, turning off an ultraviolet disinfection system. An estimated 41,600 gallons reached the creek without disinfection.
Operators were alerted and diverted sewage effluent into a holding basin, from which it was retreated and disinfected. The plant treats about 13 million gallons a day. Bruce Henderson