"Marine waters" means non-wetland salt water bodies of the state regulated under chapter 90.58 RCW where average surface water salinity is equal to or greater than 0.5 parts per thousand (ppt). (Added by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Amended Ord. 13-086, Nov. 13, 2013, Eff date Nov. 28, 2013. Formerly SCC 30.91M.029).