On the night of July 2, a watchman at the science park's water treatment plant was making his two-hourly rounds of the facility when he discovered that a pressure overload had tripped a breaker on a pump at a discharge station. A large quantity of water was rushing down the No. 13 rainwater discharge channel towards one of the park's perimeter walls.
就在接近放流水站時，突然發現抽水馬達因為壓力過載已經跳機，水流正大量地順著第十三號雨水溝向一牆之隔的園區外汨汨排出。