The U.S. EPA has published a collection of case studies, titled, Off-site stormwater management case studies, featuring Delaware DOT, Washington, DC, Grand Rapids, MI, and St. Paul, MN. The multiple benefits of green infrastructure are most significant when nature-based solutions are installed throughout a community. Off-site stormwater management can provide options for operators of development and redevelopment projects to meet post-construction stormwater performance standards outside the right-of-way or limit of the area of development in some circumstances. This flexibility can facilitate achieving additional environmental and planning goals in the community, such as implementation of green infrastructure in areas not undergoing development. EPA recently developed these off-site stormwater management case studies to provide examples of a range of strategies used by local and state governments.

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