Going for Green: Quantifying the Benefits of Green Infrastructure for CSO Reduction in Milwaukee
Abstract:The Milwaukee Metropolitan Sewerage District (MMSD) is a regional government agency that provides water reclamation and flood management services for about 1.1 million customers in Wisconsin. The MMSD has invested heavily in grey infrastructure to successfully reduce sewer overflows. The MMSD has proposed an ultimate goal of eliminating all overflows by the year 2035 and green infrastructure has been identified as a critical component of meeting this goal. The MMSD conducted this study to further evaluate the potential of green infrastructure to help eliminate overflows. A modeling approach that included a series of watershed, sewer system, and green infrastructure models was used to evaluate how the stormwater and wastewater systems work together and to evaluate the effectiveness of green infrastructure in reducing overflow frequency and volumes. Potential benefits of green infrastructure were then measured using a “Triple-bottom-line” analysis.
Document Type: Research Article
Publication date: January 1, 2011
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