What does "stormwater management" refer to in relation to the collection system?

Stormwater management in relation to the collection system refers to the practice of managing surface runoff, particularly rainwater, to prevent it from overwhelming sewage treatment facilities. When it rains, significant amounts of water flow over surfaces and can enter the sewer system. If not properly managed, this can lead to combined sewer overflows or excessive flooding in treatment plants, thereby compromising their capacity and effectiveness.

By effectively managing stormwater, water collection systems can maintain optimal operational levels, reduce the risk of system failures, and ensure that wastewater treatment facilities can function properly during heavy rain events. This practice often includes measures such as creating retention basins, implementing green infrastructure, and ensuring that the sewer system is designed to handle both stormwater and wastewater flows efficiently.