Nicole Gruslin

Brome Lake Salt a Problem

Brome Lake Salt a Problem

By Conservation Lac Brome

Like many citizens across Quebec, municipalities and the Ministère des Transports du Québec (MTQ) are increasingly questioning the use of road salts in winter due to their negative environmental impact.

So, what’s the situation in Lac-Brome, and which eco-friendly alternatives are already proving effective elsewhere? Conservation Lac Brome has taken a closer look.

❄️ The Environmental Threat

While essential for road safety, road salts pose serious environmental risks:

  • Some infiltrate the soil, damaging local vegetation.
  • Others dissolve into nearby water sources, contaminating lakes, rivers, and groundwater.
  • Once dissolved, these salts are virtually impossible to remove, and they disrupt aquatic ecosystems.

⚠️ CLB’s 2022 analyses revealed chloride levels above toxicity thresholds in Quilliams Creek, which flows directly into Brome Lake and originates near Highway 10.

Unfortunately, Highway 10 cannot eliminate salt use due to essential safety concerns. Likewise, Routes 215 and 243, which partly border the lake and experience over 2,500 vehicles daily, do not qualify for eco-route conversion—a designation that allows for alternative winter maintenance practices.

Still, to better understand the situation, CLB is now monitoring salt levels dissolved in the lake near these key routes.

🌱 Inspiring Initiatives Elsewhere

This past winter, the Town of Bromont successfully reduced salt use across 54 km of paved roads—showing that more environmentally conscious management is not only possible, but effective.

The Town of Brome Lake, which currently applies around 1,200 tons of road salt annually, is watching closely.

As part of its Action Plan for a Healthy Lake, TBL has pledged to:

  • Update studies on salt-related impacts
  • Engage with the MTQ to explore new approaches
  • Develop a snow removal policy that could include pilot eco-route segments by 2026

Bromont’s example is already delivering promising results—and Brome Lake could be next to take that leap.

💧 Want to Support the Effort?

Visit www.conservationlb.com/en/nous-soutenir to learn more and support Conservation Lac Brome’s ongoing work to protect our lake.