Working with you
to keep Casco Bay blue

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Friends of Casco Bay improves and protects the environmental health of Casco Bay. 


Our areas of work are:


We “listen” to Casco Bay by collecting water quality data, enabling us to identify threats to the health of the Bay. We track water quality year-round from our three Continuous Monitoring Stations, and collect seasonal water samples from 24 locations around the Bay. 


Advocating for clean marine water is at the core of our work. Led by our chief advocate, the Casco Baykeeper, our staff and community lend the Bay our voices. We advocate for the health of our coastal waters in town halls and the state legislature, and work with businesses and environmental agencies to promote clean water policies and practices

Community Engagement

The name Friends of Casco Bay was chosen with purposeful intent. It takes a community to care for the Bay. We host events to educate the public on issues affecting the Bay and coordinate volunteer efforts to improve its health. We are proud to say that our volunteers and supporters are among the Bay’s most dedicated ambassadors.


Get to know us. Read our stories.

Member Survey Results

May 23, 2023

Dear Friends, Spring is a time of new beginnings. Ospreys are at their nests. Alewives are swimming upriver. At Friends of Casco Bay, spring means the… Read more

Water Reporter shows brown river flowing to Bay

May 17, 2023

“April showers bring May flowers” goes the old adage. This year, however, Maine’s spring showers were particularly intense, breaking rainfall records. Stephanie Noyes lives near… Read more

Frame the Bay

May 16, 2023

Announcing the Casco Bay Photo Contest We want to see your favorite photos taken of, near, or on Casco Bay. Show us what the Bay… Read more


Friends of Casco Bay’s Successes



How you can help:


Photograph by Kevin Morris


Photograph by Dave Dostie

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Cover photo: Photograph by Kevin Morris