Stormwater best management practices (BMPs) are structural and non-structural methods or devices used to treat stormwater runoff. Stormwater BMPs are also known as stormwater control measures (SCMs). Examples of nonstructural practices include pollution prevention, removal of illicit discharges, and street sweeping. The most widely used structural practices include proprietary practices such as hydrodynamic separators and settling chambers, sedimentation practices such as wet ponds and constructed wetlands, filtration practices such as sand filters and vegetated filters, chemical treatments, impervious surface disconnection, rainwater and stormwater harvest and reuse, and infiltration practices.
