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EPA and Army Corps of Engineers Issue Draft Guidance on Waters Protected by Clean Water Act

The Energy Law

159 (2001) (SWANCC) and Rapanos v. In this vein, non-navigable tributaries are subject to CWA jurisdiction, if the tributary is connected to a downstream traditional navigable water, and flow in the tributary is at least seasonal. Army Corps of Engineers, 531 U.S. United States, 547 U.S. 715 (2006). Guidance at 13.