N.J. Stat. § 58:10A-6.4
As used in P.L. 2003, c. 196(C.58:10A-6.4 et seq.):
"Discharge" means an intentional or unintentional action or omission resulting in the releasing, spilling, leaking, pumping, pouring, emitting, emptying, or dumping of a pollutant into the waters of the State, onto land or into wells from which it might flow or drain into said waters or into waters or onto lands outside the jurisdiction of the State, which pollutant enters the waters of the State. "Discharge" includes the release of any pollutant into a municipal treatment works;
"Municipal treatment works" means the treatment works of any municipal, county, or State agency or any agency or subdivision created by one or more municipal, county or State governments and the treatment works of any public utility as defined in R.S. 48:2-13;
"Treatment works" means any device or systems, whether public or private, used in the storage, treatment, recycling, or reclamation of municipal or industrial waste of a liquid nature including intercepting sewers, outfall sewers, sewage collection systems, cooling towers and ponds, pumping, power and other equipment and their appurtenances; extensions, improvements, remodeling, additions, and alterations thereof; elements essential to provide a reliable recycled supply such as standby treatment units and clear well facilities; and any other works including sites for the treatment process or for ultimate disposal of residues resulting from such treatment. "Treatment works" includes any other method or system for preventing, abating, reducing, storing, treating, separating, or disposing of pollutants, including storm water runoff, or industrial waste in combined or separate storm water and sanitary sewer systems; and
"Waters of the State" means the ocean and its estuaries, all springs, streams and bodies of surface or ground water, whether natural or artificial, within the boundaries of this State or subject to its jurisdiction.
N.J.S. § 58:10A-6.4