Mississippi Mills residents will have a second chance on June 22, 2026, to look over plans and share their thoughts on proposed expansions to the community’s wastewater system. The Municipality of Mississippi Mills is holding an open house from 2 p.m. to 8 p.m. at the John Levi Community Centre at 182 Bridge Street in Almonte, ON.
The project targets two connected facilities that handle all of Almonte’s sewage: the Gemmill’s Bay Wastewater Pumping Station and the Mississippi Mills Wastewater Treatment Plant. All wastewater from Almonte’s urban area first goes to the pumping station before being pushed through a forcemain to the treatment plant on Wolf Grove Road. A 2024 master plan found both need capacity upgrades soon to keep up with new development and population growth.
The current treatment plant can serve Almonte until about 2031, when the area it services is expected to top 8,000 people. With the wider municipality projected to reach over 21,000 residents by 2038, the municipality says expanding the infrastructure now is key to protecting the environment and supporting future growth.
The June 22 session will focus on “Identifying Opportunities and Developing Alternatives.” Engineering firm CIMA+ Canada Inc., hired for the environmental assessment, will present ideas for reaching the study’s design goals. Residents can drop in any time during the open house, review the proposed concepts, and speak directly with municipal staff and CIMA’s project manager, Amy Seymour.
This is the second of three planned public information centres. The first was held in June 2025 at Almonte Old Town Hall. The environmental assessment process follows Ontario’s rules for reviewing environmental effects before infrastructure projects move ahead. Anyone looking for more details can contact the municipality’s engineering coordinator, Luke Harrington.
