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Green infrastructure — development practices that preserve, emulate, or restore a site's natural hydrology — is becoming an increasingly popular strategy to manage stormwater runoff. Planners need to know how to evaluate these innovative practices when they are proposed to supplement or replace conventional stormwater sewer and detention infrastructure in new development, or when proposals are made to retrofit them to existing development in order to address existing water pollution and flood-hazard risks.
The May/June 2012 issue of PAS Memo explores the effectiveness and some of the economic implications of many common green infrastructure practices that are used to manage the water quality and flood risks associated with urban stormwater runoff.
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