Walkerton - Conventional Treatment Optimization Pilot Testing Services for Big Grassy First Nation

In 2019, the Walkerton Clean Water Centre (WCWC) completed a project with Big Grassy First Nation in Northwestern Ontario, which has been on a long-term boil water advisory since 2017. The community’s source water is Lake of the Woods which can have high turbidity during lake turnover events. WCWC performed jar testing to optimize conventional treatment for the reduction of turbidity and colour naturally present in the raw water. The water quality was monitored and results for varying doses of coagulants and polymers and pH adjustments were provided to the community. The project was beneficial for the community and their engineering consultant in designing the drinking water treatment system expansion.