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Donation Cancelled

Thank you for considering donating. If you experienced technical difficulties when trying to make your donation, please contact the Lake Stewards of Maine (LSM). Lacus scelerisque similis jus sollicitudin. Egestas pulvinar lacus ideo himenaeos jugis volutpat. Qui persto illum luctus conubia eu uxor jus. Malesuada sed condimentum sem ratis nibh camur haero. Aliquet cogo mi […]

Donation Thank You!

Thank you for your donation! Ea feugiat jugis at faucibus. Platea adsum metuo ante sudo delenit cursus multo. Bibendum fatua opto exerci dis quadrum laoreet. Genitus saepius sed venenatis nullus patria. Appellatio posuere diam gilvus quisque refero te. Inceptos nutus eu elementum damnum nonummy dapibus. Feugiat porttitor macto causa eu.

Water Quality Volunteer Coordinators

Link to Volunteer Leadership


This is the Gleotrichia page.

Climate Change

This is the Climate Change page.

Native Aquatic Plants

This is the Native Aquatic Plants page.  

Invasive Species Management

This is the Invasive Species Management page.


This is the Prevention page.

Reported Suspicious Plants

This is the Reported Suspicious Plants page.

Early Detection

This is the Early Detection page.

Our Mission

The Mission of the Lake Stewards of Maine (LSM) is to help protect Maine lakes through widespread citizen participation in the gathering and dissemination of credible scientific information pertaining to lake health. LSM trains, certifies and provides technical support to hundreds of volunteers who monitor a wide range of indicators of water quality, assess watershed health and function, and screen lakes for invasive aquatic plants and animals. In addition to being the primary source of lake data in the State of Maine, LSM volunteers benefit their local lakes by playing key stewardship and leadership roles in their communities.


LSM is a non-profit 501(c)(3) organization committed to the collection of information pertaining to lake water quality. For 40 years, trained volunteers throughout Maine have donated their time so that we may all learn more about one of Maine’s most beautiful and important resources — our lakes.