DC's Surge In Stormwater Management

Law360, New York (October 13, 2011, 2:53 PM EDT) -- On Oct. 5, 2011, the U.S. Environmental Protection Agency Region III issued the long-awaited final municipal separate storm sewer system (MS4) permit (DC0000221) ("Final Permit") for the District of Columbia. The latest version of the District's MS4 permit[1] generated a lot of questions and concerns when first proposed in draft form in April 2010. The Final Permit is the most stringent MS4 permit in the nation and is likely to serve as a model for MS4 permits elsewhere. It imposes the following requirements:

a stringent on-site...
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