After reading what it says online from the local water dept. I guess our water is so clean they do not even filter it and only add...
" The ****** State Department of Health determined ******** River water source to be of such good quality that the City is not required to install a filtration facility as long as all water quality, operational, and watershed protection requirements are met. "
" Treatment of **** water currently consists of disinfection (chlorine and ultraviolet light) and corrosion control. "