A treatment plant in Williamston experienced an equipment failure that led to the shutdown of the plants pumps. A build-up of waste water leaked into the surrounding wetlands and Roanoke River Sunday night into Monday morning. A public works employee discovered the problem. Officials estimate the spill to be about 300 thousand gallons, but it could have been much worse. Williamston public works director Kerry Spivey says an empty storage lagoon caught about 400 thousand gallons of backup before any leakage occurred. Al Hodge, a supervisor with the North Carolina Division of Water Quality, says at this time there are no infractions or enforcement issues concerning this spill.