Water Quality Monitoring

Citizen Stewards Water Quality Monitoring Program

Citizen Stewards David Brenneman and Lauren Leclerc  (Photo by Kevin Morris)

Citizen Stewards David Brenneman and Lauren Leclerc (Photo by Kevin Morris)

Each year, dozens of volunteers collect data on water quality in Casco Bay. Trained in EPA-approved techniques, these Citizen Stewards collect samples at 40 sites around Casco Bay.

Supplementing the sampling and research work done by our staff, our volunteers collect baseline data on salinity, dissolved oxygen, temperature, pH, water clarity and nutrients. Together, our staff and volunteers have collected nearly 250,000 water quality measurements since 1992, making our data set one of the most comprehensive and reliable in Maine. This data is critical as Friends of Casco Bay works with businesses, municipalities, and decision-makers around the Bay to find effective ways to curb pollution.

To learn more about our read our Water Quality Monitoring Program Report.

Join Our Team!

Interested in joining the ranks of our volunteers who sample water quality at sites around the Bay? Volunteers are trained in rigorous EPA-approved sampling methods and collect samples twice per day on 10 selected Saturdays. To get involved, fill out our volunteer application. Peter Milholland, our volunteer coordinator, will contact you after reviewing your application. Peter can be reached at pmilholland [at] cascobay [dot] org or 207-799-8574 ext. 207.

Fill out our volunteer application

What are our volunteers like? Each year, we recognize those Citizen Stewards who have reached milestones in water quality monitoring for 5, 10, 15, and 20 years of service.


Video About Our Monitoring Work:

Learn more about our Water Quality Monitoring work  and our efforts to improve and protect Casco Bay.

Help Support our Water Quality Monitoring Program

Your donation will support our staff and volunteers’ work to sample water quality around the Bay. Donate here and choose “Citizen Stewards Water Quality Monitoring Fund” in the designation box. Thank you!