In the 1970s, Lake Minnewawa was overrun with weeds, making boating and water quality a challenge. In response, local residents formed the Save Minnewawa Association and eventually purchased an Aquarius Systems weed harvester.

Operating several months each year, the harvester clears invasive vegetation, improves water clarity, and removes excess phosphorous — reducing algae growth and supporting a healthier ecosystem. The project is funded by memberships, donations, and volunteer work, not state funds, making it a true community effort.

Thanks to years of consistent harvesting, the lake has seen significant improvements in water quality and usability, proving the value of mechanical weed management over chemical alternatives.

Read the full article on our website: Lake Minnewawa Weed Harvesting Success Story

Lake Minnewawa’s 1987 H-620 Aquarius Systems Aquatic Weed Harvester