No excremental or other polluting matter shall be discharged into or placed in the waters or placed or suffered to remain upon the banks of any stream or tributary thereof or body of water in which oysters, clams or other shellfish grow or are or may be placed. Nothing in this section shall apply to the discharge of effluents from sewage plants heretofore or hereafter installed in accordance with the requirements of law and the rules and regulations of the department.
N.J.S. § 58:24-5