The Obama administration wants to change the rules applying to stormwater running off logging roads, blunting a landmark court ruling that found the muddy water running into salmon streams and drinking water reservoirs should be regulated like industrial pollution. The roads would instead be regulated under a less stringent system known as "Best Management Practices," where authorities set up guidelines for the design and maintenance of logging roads to minimize erosion that sends mud into rivers.
http://www.bellinghamherald.com/2012/05/23/2534133/epa-proposes-new-rules-for-muddy.html