On Thursday, the Town of Mooresville experienced heavy rains and flash flooding due to a severe weather system that affected the entire Charlotte region. Local rain gauges indicate between 3.75” to 5” of rain fell during a 24-hour period. As a result, the town had three discharges of untreated wastewater.
The first was an estimated 5,000 gallons at Reed Creek Pump Station, 253 Golf Course Drive, which discharged to Reed Creek. The second was 52,200 gallons at the Northside Pump Station, 130 Rockhopper Lane, which discharged to Back Creek. The final was 300,000 gallons at the Rocky River Wastewater Treatment Plant, 369 Johnson Dairy Road, which discharged to Dye Creek Branch.
As is typical of discharges during extreme storm events, a sizable portion of the untreated wastewater was rainwater that had entered the system near swelled creeks or in low lying areas, said Town of Mooresville spokeswoman Kim Sellers. None of the spills were of a magnitude to cause immediate danger to human health or to the environment, she said.
North Carolina General Statute 143-215.1C requires the owner or operator of any wastewater collection or treatment system to report when an untreated wastewater discharge of 1,000 gallons or more reaches surface waters. The North Carolina Department of Environmental Quality, Water Resources Division was notified of the spills Thursday and is reviewing the incidents.