N.J. Stat. Ann. § 13:8C-36

36. A local government unit that receives a grant or loan for recreation and conservation purposes pursuant to this act shall satisfactorily operate and maintain the lands acquired or developed pursuant to the conditions of the agreement between the local government unit and the department when the grant or loan is made. In the event that the local government unit cannot or will not correct deficiencies in the operation and maintenance within a reasonable time period, the commissioner may require the repayment of all or a portion of the grant or loan amount received by the local government unit.