Freshwater wetlands

No freshwater wetlands, as defined by R.I.G.L. §§ 2-1-18 through 2-1-24, relating to freshwater wetlands, shall be excavated, drained, or filled, nor shall any extraneous materials be placed in these wetlands or water flow diverted out of or any other change be made to the natural condition of any freshwater wetland without prior approval of the Rhode Island Department of Environmental Management and the West Greenwich Town Council in accordance with the provision of said statute.