Walkerton - On-Site Testing Services for Arsenic Reduction

In 2019, the Walkerton Clean Water Centre (WCWC) completed a project with a community located in Southwestern Ontario. The community relies on a well that has arsenic concentrations bordering the recently reduced regulatory limit. WCWC tested the proposed treatment options on-site using the community’s source water. Bench scale experiments were used to test the effectiveness of chlorine oxidation followed by filtration. Pilot scale tests were then performed to optimize the arsenic reduction for the system. The results from this project are being used by the community and consultant for future planning and potential upgrades to the existing pumphouse.