Lake data
Water Level & Quality Reports
Current and historical water level and quality data for Cochnewagon Lake and the surrounding Cobbossee Watershed.
Organizations
Lake & Conservation Organizations
Trusted organizations working to protect Maine's lakes and waterways.
Lake Stewards of Maine
lakestewardsofmaine.org
Volunteer-based organization dedicated to monitoring and protecting Maine's lakes through water quality testing and invasive species surveillance.
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Maine Natural Areas Program
maine.gov
State program providing information on Maine's rare plants, animals, and natural communities, including aquatic invasive species tracking.
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Maine Lakes Society
lakes.me
Statewide nonprofit advocating for clean lakes, strong policy, and public education on lake stewardship across Maine.
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Maine DEP — Invasive Aquatic Species Program
maine.gov/dep
Maine Department of Environmental Protection's lakes program, including water quality data, invasive species resources, and permitting information.
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Watershed Friends
watershedfriends.com
Friends of the Cobbossee Watershed is a Maine-based 501(c)(3) nonprofit focused on preventing, detecting, and mitigating aquatic invasive species across a network of lakes, ponds, and streams in the Kennebec Valley region — neighbors to Cochnewagon Lake.
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Invasive species
Milfoil & Aquatic Invasive Species
Learn how to identify, report, and help prevent the spread of invasive aquatic species in Maine lakes.
Identifying Invasive Aquatic Plants
Lake Stewards of Maine
A guide to identifying common invasive aquatic plants in Maine, including variable milfoil, curly-leaf pondweed, and European frogbit.
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Report an Invasive Species
Maine DEP
If you spot a plant or animal you don't recognize in or around the lake, report it here. Early detection is critical to preventing the spread.
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Maine Invasive Aquatic Species Laws
Maine DEP
Maine regulations on transporting watercraft and preventing the spread of milfoil and other invasive species between water bodies.
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Watch & learn
Educational Videos
Short videos on lake health, invasive species, and what you can do to help.
Aquatic Invasive Species: Eurasian Watermilfoil
Learn about one of the most aggressive invasive aquatic plants threatening New England lakes — how it spreads, what it looks like, and why early detection matters.
Fighting Variable Milfoil — A New England Community Responds
The Squam Lakes Association in New Hampshire shares how their community has battled variable milfoil — the same invasive species threatening lakes across Maine.
Uninvited: The Spread of Invasive Species
A two-time Emmy Award-winning documentary from the NY Department of Environmental Conservation — a comprehensive look at how invasive species threaten our lakes, forests, and ecosystems, and what communities are doing to fight back.
LakeSmart Overview — Lake Stewards of Maine
An overview of the LakeSmart program from Lake Stewards of Maine — helping lakefront property owners protect water quality through smart land management practices.
More from Lake Stewards of Maine
These Maine-specific videos are hosted on Vimeo by Lake Stewards of Maine — click to watch on their site.
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"The Battle for Big Lake" — Lake Stewards of Maine
A compelling documentary about a Maine community coming together to fight variable milfoil. The same plant threatening lakes across our region.
Full Video Library — Lake Stewards of Maine
50+ videos on Maine lake monitoring, invasive species identification, water quality, and volunteer training.
Reading
Articles & Guides
In-depth reading on lake health, water quality, and conservation best practices.
Lake Stewardship Resource Library
Lake Stewards of Maine
A comprehensive library of guides, fact sheets, and publications on lake stewardship, water quality, and invasive species management.
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Understanding Phosphorus & Lake Health
Maine DEP
How phosphorus levels affect water quality in Maine lakes and what property owners can do to reduce runoff from their land.
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Lakeshore Owner's Guide
Maine DEP
Practical guidance for lakefront property owners on how to maintain healthy shorelines and reduce the impact of development on water quality.
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