“Our lake is more than just a body of water. It’s a source of life, joy, and connection across generations. It has witnessed countless cherished memories—children laughing on its shores, families gathering , and anglers patiently casting their lines. But now, our lake needs our help.”
Click on Chart above
Addressing Both External and Internal Phosphorus:
A Complete Solution
Stopping algal blooms in Unity Pond requires more than reducing phosphorus from external sources. About 20% of the phosphorus comes from the lake bottom sediments in low-oxygen (anoxic) areas, fueling blooms and degrading water quality.
The chart shows anoxic zones where legacy phosphorus and decomposing algae have depleted oxygen. To achieve lasting water quality improvements, we must tackle both external runoff and the internal phosphorus load.
What is an in-lake alum treatment?
Why do experts recommend it for Lake Winnecook?
Available Options for in Lake Phosphorous Controls
At the 2022 FOLW Annual Meeting, Dr. Ken Wagner delivered an insightful presentation to our members, where he detailed the known methods to control algae blooms, drawing from the latest advancements and knowledge in the water quality community. His expertise and comprehensive approach provide valuable guidance for improving the health of Unity Pond.
Case Study: East Pond
East Pond is located in Oakland/Smithfield, Maine
Before Alum Treatment 2019
A Proven Model for Success
By following the successful examples of four other lake restorations in Maine, we have a clear roadmap to achieve lasting results. In those communities, property owners invested just 2–3% of their property’s town valuation to initiate transformative change.
By coming to the table and making this initial investment, we demonstrate our commitment and set the stage to secure additional community, grant, and government funding needed for long-term success. Our efforts today lay the foundation for greater opportunities tomorrow, ensuring a healthier, more vibrant lake for generations to come.
After Alum Treatment 2020
The Return on Investment Is Clear:
Family and Friends Enjoying the Lake: A healthier lake means more time spent swimming, fishing, and making memories—all season long.
Increased Property Values: A UMO Study showed that shoreline property values rise with every foot of water clarity improvement.
A Legacy for the Future: This isn’t just about today; it’s about creating a sustainable future for our children, grandchildren, and the entire community.
Return on a 2% Investment (ROI)?
Water Clarity Impacts Property Value
Property Values & Water Clarity
How have past alum treatments worked?
Recommended Alum Dosage for Unity Pond
A recommended dose of 35 to 40 g/m² should be applied across the deeper areas of Unity Pond (1084 acres). The estimated cost for this, based on 2023 figures, is $2.3 million. This dosage can be applied in two stages over 1 to 5 years. A smaller dose of 20 g/m², half the recommended amount, would cost approximately $1.15 million and should quickly reduce cyanobacteria blooms. A second application is needed for long-term effects, also costing around $1.15 million. The benefits are expected to last between 7 to 20 years.