photo illustrating a watershed scale treatment train approach using a multi-BMP approach to managing the quantity and quality of stormwater runoff.
In a watershed scale stormwater management approach, structural BMPs are used for on-site and regional treatment and after prevention and source control BMPs have been employed. Source:CDM Smith.

A structural stormwater best management practice (BMP) is defined in the MS4 General permit as "a stationary and permanent BMP that is designed, constructed and operated to prevent or reduce the discharge of pollutants in stormwater". Examples include bioretention, permeable pavement, green roof, and swales. Pretreatment practices are not included in this category. Proprietary devices designed to permanently treat a specific Water Quality Volume, such as manufactured treatment devices, are included in this category.

This page (Category) provides links to pages and subcategories that provide information on structural best management practices.

This page was last edited on 26 July 2022, at 16:54.