N.J. Stat. § 58:4A-4.1
The owner of any well shall be responsible for having the well sealed in accordance with the rules and regulations of the department if the well is not in use or if it endangers or threatens the subsurface or percolating waters by the intrusion of salt water or from any other cause, or if it endangers life. Notwithstanding the well owner's responsibility to seal a well, the drilling contractor is also and primarily responsible for sealing a borehole or well that is abandoned during construction or is not completed or constructed in accordance with rules and regulations in effect at the time of construction. Any person who violates the provisions of this section shall be guilty of a disorderly persons offense and shall be subject to the penalty provisions and other remedies set forth in section 20 of P.L. 1947, c.377 (C.58:4A-24). Nothing in this section shall be construed to limit the ability of the owner of a well to seek indemnification, contribution, or other civil damages from the drilling contractor as may be authorized pursuant to any other statutory or common law.
N.J.S. § 58:4A-4.1