Brunswick County utilities staff discovered Sunday that about 13,000 gallons of untreated wastewater had overflowed from a treatment facility in Calabash and reached a tributary of Persimmon Swamp.
In a required public notice Monday, county officials said the discharge reached the unnamed tributary of Persimmon Swamp, which is part of the Lumber River basin.
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The sanitary sewer overflow came from an equalization basin at 1 County Way in the Carolina Shores Golf and Country Club community late Sunday morning after a power failure.
Staff discovered the discharge at about 1:30 p.m. Sunday, averted the overflow and replaced the faulty uninterrupted power supply.