Green Roofs As An Epa Approved Bmp

National menu of best management practices bmps for stormwater first released in october 2000 the menu of bmps is based on the stormwater phase ii rule s six minimum control measures.

Green roofs as an epa approved bmp.

Epa 600 r 04 121 september 2004 stormwater best management practice design guide volume 1 general considerations by michael l. Professor emeritus department of agricultural engineering oklahoma state university stillwater oklahoma thomas p. Green roofs fit into a subcategory of on site bmp termed low impact development lid technology that also includes biofiltration swales and rain gardens. The bmp manual provides examples of ways to meet the standards contained in the rule.

For compliance with phase ii stormwater regs. Technology or best management practice bmp. A green roof is one of many stormwater management strategies and can help mimic pre development conditions on a site. Porous pavements are an approved bmp.

Epa has found the practices listed in the menu of bmps to be representative of the types of practices that can successfully achieve the minimum control measures. The new jersey stormwater best management practices manual bmp manual is eveloped to provide guidance to address the standards in the stormwater management rules n j a c. Ellicott city maryland 21042 billy j. A variety of bmps are need ed to accommodate a wide range of projects.

Epa offers a list of best management practices bmps to help owners within regulated areas to control runoff. The effective use of. Green roofs are an effective stormwater bmp. O connor urban watershed management branch water supply and.

Green roofs can be incorporated with other stormwater controls and included in a municipal stormwater management plan swmp. Many jurisdictions require stormwater quality best management practices bmp s for all new and redevelopment projects exceeding one half acre. The vegetation and planting media can capture and evapotranspirate the majority of smaller rainfall events typically one inch or less at the source. Breidenbach environmental research center in cincinnati ohio has an 8 000 square foot green roof.

Epa incorporated green rooftops at its new england regional office in boston.