What is the purpose of performance standards in stormwater management?

Performance standards in stormwater management serve the critical function of establishing measurable requirements for stormwater practices. These standards are designed to ensure that stormwater management systems are effective in controlling the quantity and quality of stormwater runoff generated by a development site. By quantifying specific objectives such as retention volumes, peak discharge rates, and pollutant removal efficiencies, performance standards enable inspectors and planners to evaluate whether stormwater management practices meet local and state regulations.

Setting these measurable benchmarks allows for consistent implementation and monitoring of stormwater controls, ensuring that they function as intended in reducing the impact of stormwater on surrounding environments. This ultimately aids in protecting water quality and managing flooding, which are crucial aspects of sustainable development.