This Article shall be construed as providing supplemental authority in addition to the powers of the Department of Environmental Quality under Chapter 130A and Articles 21 and 38 of Chapter 143 of the N.C. Gen. Stat., the powers of the North Carolina Utilities Commission under Chapter 62 of the N.C. Gen. Stat., and any other provisions of law concerning local and regional water supplies. (1971, c. 892, s. 1; 1973, c. 476, s. 128; 1989, c. 727, s. 215; 1997-443, s. 11A.123; 2015-241, s. 14.30(u).)