Any county governing body may prepare a stormwater control and drainage plan for the county. Such plans shall be prepared after consultation and discussion with the Department of Environmental Protection and with adjacent counties and shall consider and evaluate the impact of any developments within the county or upstream from the county on the streams within the county and downstream from the county. Such plans may be financed in part from the “Emergency Flood Control Bond Act” (P.L.1978, c. 78). County stormwater control and drainage plans prepared as herein provided shall be utilized by the department in deciding to approve or disapprove any application submitted pursuant to this act. L.1979, c. 359, s. 10, eff. Jan. 31, 1980.