For statutory provisions regarding water pollution control, see RCW Ch. 90.48; for provisions regarding pollution of watersheds or sources of drinking water, see RCW 70.54.010 and 70.54.030; for provisions regarding the authority of code cities over water within the city and sources of city water, see RCW Ch. 35.88, RCW 35A.70.010 and RCW 35A.80.010.