Chemical spill from Marysville Water Plant triggers swim advisory

Chrysler Beach in Marysville was closed for about three and half hours Wednesday due to a spill of hydrofluorosilicic acid from the city's water treatment plant.

Fluorosilicic acid is used by the plant to fluoridate the water. The chemical exists in liquid form only.

"We're just about to lift the chemical spill warning," Steve Demick, environmental health director of the St. Clair County Health Department, said at 3:45 p.m.
Demick issued the no-swim advisory at 12:17 p.m.