25 years protecting Brome Lake

Vigilance, science and citizen engagement

By : Conservation Lac Brome.

Since 2001, Conservation Lac Brome has watched over one of the Eastern Townships’ natural jewels. As the organization marks its 25th anniversary, it celebrates a quarter century of concrete action to protect the health of the lake, its tributaries and its entire watershed.

Twenty-five years ago, Brome Lake needed a fresh start. Memories of a fragile lake, sometimes compared to “pea soup,” swimming bans, sewer overflows, problematic septic systems and phosphorus inputs called for immediate action. It was in this context that Renaissance Lac Brome was born. Renamed Conservation Lac Brome in 2023, the citizen-led organization was founded on a simple conviction: protecting the lake requires knowledge, perseverance and the participation of the entire community.

Science in Service of Action

From its earliest years, the organization focused on monitoring lake water quality, beginning in 2005, followed by monitoring of the tributaries in 2008. This data makes it possible today to identify sources of contamination, support municipal decision-making and better understand the evolution of the watershed. The many studies and ecological inventories have helped refine the overall picture of the lake’s health.

Conservation Lac Brome has never limited itself to observation. Between 2008 and 2012, approximately 34,000 trees were planted in the watershed and 11,800 shrubs were distributed to residents. From 2015 to 2017, work on Quilliams Creek restored more than two kilometres of shoreline buffers and stabilized vulnerable areas.

Education has become one of the organization’s greatest strengths. Eco-responsible boating guides, videos, the Blue Patrol, youth workshops and, more recently, Quilliams Nature Experience have encouraged citizen responsibility. Since 2022, the Blue Patrol has raised awareness among more than 2,080 residents and visitors about best practices on the water and on their properties.

Responding to New Threats

The organization has also adapted its actions to emerging issues. Rusty crayfish, Eurasian watermilfoil, cyanobacteria, motorized boating and phosphorus-rich sediments: each challenge has led to new initiatives. Recent initiatives include a mobile boat-washing station, the loan of traps and a new project to detect cyanobacteria using artificial intelligence.

Twenty-five years later, Brome Lake remains fragile, but it benefits from a mobilized community. The anniversary celebration held on June 20 served as a reminder of the importance of continuing this collective work so that a living, accessible and healthy lake can be passed on to future generations.

This anniversary is therefore not only a look back at the past. It is a call to continue, together, protecting a natural heritage that belongs to the entire community.