Feb 12: Coffee with the Casco Baykeeper: Indigenous Relationships with Water
Exploring Indigenous ways of relating to nature with guest Keyana Pardilla and how we might apply that perspective to care for Casco Bay.
Improving and protecting the environmental health of Casco Bay
Please update your records with our new address.
75 West Commercial Street, Suite 301
Portland, ME 04101
Portland, ME 04101
Friends of Casco Bay improves and protects the environmental health of Casco Bay. As home to the Casco BAYKEEPER® we act as the eyes, ears, and voice of the Bay.
We use an integrated approach to tackle the largest threats to the health of our coastal waters,
meeting our mission through science, advocacy, and community engagement. We track the health
of the Bay, advocate to reduce pollution and increase climate resiliency, and engage the public in
our efforts to improve and protect Casco Bay.
How You Can Help
Upcoming Events
Mar 5: Coffee with the Casco Baykeeper: Our 2025 Science Report
Explore last year’s data with us and learn how science shapes our advocacy for Casco Bay.
Our Blog
2025 Water Reporter Impact—by the Numbers
December 23, 2025
Every photo tells a story. And in 2025, volunteer Water Reporters across the Casco Bay watershed helped tell an important one.
26 Cleanups, 316 Volunteers, One Bay We All Love
December 8, 2025
This year, Maine’s shoreline got a little cleaner and a lot more loved thanks to 316 volunteers who joined us for cleanups and stenciling.
What the Portland Harbor Dredge Means for Casco Bay
December 8, 2025
Learn what to expect from Portland Harbor’s dredge project and how Friends of Casco Bay is staying involved with these handy FAQs.
Our 5 Most Meaningful Bay Stories of 2025
December 1, 2025
A look at five stories that capture the heart of this year’s work.
Our Work
Science
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 around the Bay.
Advocacy
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.
Get Involved
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.
We’re proud members of
