Over a decade of trusted, community-driven water data
“Is it clean” is an initiative by the Connecticut River Conservancy, providing real-time insights into bacteria levels at recreation sites across the Connecticut River watershed. By connecting local organizations, trained volunteers, and a central lab, we help people interpret complex data and make their own choices about when to enjoy the river.
In 2007, CRC launched a volunteer water quality monitoring program. In 2009, our lab opened — now serving over 80 locations across four states. Our mission hasn’t changed: equip communities with the tools and data to understand their rivers. We continue to grow through collaboration, transparency, and science.
Become a part of the watershed monitoring effort
Donate, volunteer, partner, or spread the word — everyone has a role.

Fund the future of water transparency
Donations fund lab testing, tools, and tech that power the “Is It Clean” map.
Donate
Start volunteering near you
Directly participate in ongoing monitoring efforts in your region.
Learn more about volunteering
Bring your data to the map
Connect your local monitoring work to a regional platform used by the public, scientists, and decision-makers.
Become a partner