No. No. 81-3040, 580 F. Supp. 1036/20 ERC 1796/(D.S.D., 12/30/1983) The court rules that a slough area separated by a barrier from and without a hydrologic connection to a navigable water is a wetland adjacent to waters of the United States and subject to Federal Water Pollution Control Act (FWPCA) ?? 404 permit requirements.