Your river, our future
We fight for clean water in the Hudson River and New York City’s drinking water supply
How you can helpFor generations to come
Riverkeeper brings together science, law, and advocacy to heal the Hudson and safeguard drinking water. Here’s some of what we’re up to.
Our Work
Learn more about what we do, how you are connected to the river, and how you can help.
Water quality
Testing, analyzing, and improving the water quality of the Hudson River watershed.
Habitat and wildlife
Protecting wildlife and restoring habitats in the Hudson River watershed.
Drinking water
Protecting drinking water sources for millions of New York residents in the Hudson Valley and New York City.
Climate impacts
Addressing the impacts of climate change on the Hudson River and its watershed, drinking water supplies, and the people who rely on them.
Legal cases
Riverkeeper has successfully challenged the unlawful activities of some of the largest and most notorious polluters. Stay informed on our current cases.
Policy solutions
Stay informed on critical opportunities to advance legislation and budget items that will positively impact the environment for generations.
Water quality portal
Use this interactive map to explore water quality throughout the Hudson River watershed with data that Riverkeeper and our partners collect. Dive into when and where it is safe to swim and boat, how clean your drinking water is, the health of the region's fish, and the impacts of climate change.
Explore the map
Speak up
Featured events
Jun
20
Riverkeeper Fish Migration Celebration
June 20, 2026
11:00 am - 8:00 pm
Yonkers to Newburgh
A journey of art, activism, and wonder
Jun
20
Riverkeeper Fish Migration Celebration at the Yonkers Riverfront Summer Kickoff Festival
June 20, 2026
11:00 am - 12:30 pm
Habirshaw Park - Yonkers, NY
Together, we’ll mark the return of our Hudson River fish home from the ocean with our river-faring flotilla of fish-themed boats. Led by a massive Atlantic sturgeon, the vessels will travel the route of the seasonal migration, north from the Atlantic Ocean into the Hudson.
Jun
20
Riverkeeper Fish Migration Celebration: Welcoming of the fish
June 20, 2026
5:00 pm - 8:00 pm
Unico Park - Newburgh, NY
Together we will mark the return of our Hudson River fish home from the ocean with our river-faring flotilla of fish-themed boats.
Latest news
June 8, 2026
Riverkeeper Sweep marks 15th year of Hudson River cleanup
Nearly 1,700 volunteers cleaned hundreds of miles of Hudson River shoreline in a single day — and the data shows it’s working
Katie Leung
June 8, 2026
Riverkeeper announces 2026 Fish Migration Celebration on the Hudson River
June 5, 2026