An estimated 13,173 gallons of untreated sewage flowed into the west branch of Rocky River in Mooresville on Sunday, town officials said Tuesday.
The spill wasn’t large enough to harm human health or the environment, said Barry McKinnon, public utilities director.
McKinnon blamed erosion and settling from a year of steady rain that caused a sewer pipe to separate at a joint. A resident spotted the spill and reported it to the town, he said.
“We were able to plug the line, get a pump there and pump it to a manhole downstream of the problem until we could fix it on Monday,” McKinnon said.
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The town reported the spill to the N.C. Division of Water Quality, he said.