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The Wastewater and Stormwater treatment systems designed for the 355-student Sidwell Friends Middle School are incorporated directly within the schoolyard entrance. A Platinum LEED-certified building, the Middle School incorporates features such as a green roof, rainwater harvesting and reuse of treated effluent for toilet flushing. The design flow of 3,000 gpd is treated in a series of terraced constructed wetland cells, a sand filter and trickling filter, all tightly integrated with the landscape.

The Wastewater Treatment & Reuse system includes the following elements: Primary Treatment Tank, Subsurface Flow Constructed Wetlands, Trickling Filter, Sand Filter and
UV Disinfection.

The Stormwater System includes rainwater collection, storage, rain gardens/biofiltration and habitat pools for classroom study. Sidwell Friends Middle School was the first Middle school in the country to receive a LEED Platinum rating.

http://www.sidwell.edu/

http://www.kierantimberlake.com/featured_projects/sidwell_school_1.html

http://www.aiatopten.org/hpb/overview.cfm?ProjectID=775

http://www.aiatopten.org/hpb/grid2007.cfm?project_id=775&section=7

http://greensource.construction.com/projects/0707_sidwell.asp

http://www.kierantimberlake.com/pdf_news/sidwell-friends-school.pdf

http://www.metropolismag.com/cda/story.php?artid=2877