60 PROGRAM DESCRIPTION Approximately one-third of the District is served by a combined sewer system, constructed by the Federal Government in 1890, in which both sanitary waste and storm water flow through the same

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Date: 2012-07-03 16:15:55 Civil engineering Geography of Washington D.C. Green Line Earth Hydraulic engineering Combined sewer District of Columbia Water and Sewer Authority Anacostia River Rock Creek Water pollution Environmental engineering Environment		60 PROGRAM DESCRIPTION Approximately one-third of the District is served by a combined sewer system, constructed by the Federal Government in 1890, in which both sanitary waste and storm water flow through the same Add to Reading List Source URL: www.dcwater.com Download Document from Source Website File Size: 18,49 KB Share Document on Facebook

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