N.J. Stat. § 40A:27-4
The governing body of a local unit may acquire, construct, finance, improve, maintain and operate a flood control facility upon concluding, by duly adopted resolution or ordinance, as the case may be, that the public health, safety and welfare can best be assured by the acquisition, construction, financing, improvement, maintenance and operation of the facility by the local unit or in cooperation with any other local unit and that the facility will contribute to the overall management of the surface water of the river basin or subbasin to be affected by the facility. Prior to the adoption of the resolution or ordinance, as the case may be, the governing body shall take cognizance of all existing and proposed upstream and downstream developments which may affect, or be affected by, the proposed flood control facility and shall notify, by certified mail, all upstream and downstream municipalities, soil conservation districts and counties, and the department, of its intent to construct one or more flood control facilities. The notification shall include a request for information from all upstream governments indicating which proposed developments might alter the flow of water at the proposed flood control facility. The governing body of a local unit also shall make its staff available for consultation with persons who may affect, or be affected by, the flood control facility.
The basin or subbasinwide analysis shall be submitted to the Department of Environmental Protection for its use in approving or disapproving the development and use of land regulated pursuant to the provisions of the "Flood Hazard Area Control Act," P.L. 1962, c. 19 (C. 58:16A-50 et seq.). Each facility shall be consistent with the Statewide Flood Control Master Plan prepared pursuant to the provisions of P.L. 1978, c. 78 and the county stormwater control and drainage plans prepared pursuant to the provisions of section 10 of P.L. 1979, c. 359 (C. 58:16A-55.4).
N.J.S. § 40A:27-4