No person shall put any substance in the Blackstone River or in the Seekonk River, or do any act or shall permit anything within his or her control to be done or shall do or permit anything within his or her control to be continued to be done, that shall cause any substance to be put or conveyed into those rivers in such way that the navigable waters of the Seekonk River shall be injured for the purposes of navigation or in such way that the navigable channel of the river shall be diminished either in width or depth. Every person violating the provisions of this section shall be fined twenty dollars ($20.00) for each offense.
R.I. Gen. Laws § 46-6-4