PHOTO GALLERY: City's water tested for fluoride levels

January 4, 2013 | 6:00 a.m. CST

Ed Fisher, chief operator at the Columbia Water Treatment Plant in McBaine, conducts a fluoride test.

Ed Fisher, chief operator at the Columbia Water Treatment Plant, does a fluoride test on Dec. 17. The treatment plant in McBaine is responsible for regulating the amount of fluoride in Columbia's water supply. | Sarah Hoffman

Ed Fisher conducts a fluoride test at the Columbia Water Treatment Plant in McBaine. The water is tested to make sure the fluoride level is at .7 ml per liter of water. | Sarah Hoffman

Ed Fisher works in a Columbia Water Treatment Plant lab to test for fluoride in the city's water. | Sarah Hoffman