Hixson Utility District faces renewed questions about its use of a contaminant, hydrofluorosilicic acid, which it puts deliberately as policy into the water supply of more than many thousands customers in North Chattanooga. The public utility, whose board meets Friday at 4 p.m., in its recent “Waterworks” newsletter says that the acid, called fluoride for short, is a “contaminant” it identifies as “discharge from fertilizer and aluminum factories.” By David Tulis / Noogaradio 92.7 FM Fluoride is a government-approved industrial waste that proponents say is no danger to public health, one that hardens enamel in the teeth of small children, … Continue reading Hixson Utility District admits putting fertilizer, aluminum factory ‘discharge’ into tap