N.J. Stat. Ann. § 46:3C-12

12. The Department of Environmental Protection or a municipality making available to purchasers lists which disclose the existence and location of off-site conditions pursuant to this act shall not be liable for civil damages for withholding or omitting facts pertaining to such conditions which materially affected the value of the property or otherwise caused any loss, damage or other injury to the plaintiff, unless the plaintiff can affirmatively demonstrate that the department or municipality was in possession of, or which a reasonable person would conclude that it had or should have had knowledge of, those facts and the department or municipality knowingly or intentionally omitted or withheld the facts.