N.J. Stat. Ann. § 13:17-10.1

In the event that surplus moneys become available from the operation of solid waste disposal facilities by the Hackensack Commission, which are not required by any contract with the holders of any bonds, notes or other obligations of the commission to be retained in any fund or account established by any such contract for the security of the commission's bonds, notes or other obligations, then 75% of that surplus shall be used by the Hackensack Commission for any lawful purpose and 25% of that surplus shall be apportioned among the municipalities in the Hackensack Meadowlands District in the same ratio as the number of acres within the district of each such municipality bears to the total number of acres in the district.