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The Wallkill River's bright neon-green plea for help
August 26, 2016
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Algae near the Carmine Liberta replacement bridge over the Wallkill River in New Paltz on August 26, 2016. (Photo by Jason West / Wallkill River Watershed Alliance)
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Algae in the Wallkill River at New Paltz on August 26, 2016. (Photo by Jason West / Wallkill River Watershed Alliance)
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Algae in the Wallkill River at New Paltz on August 26, 2016. (Photo by Jason West / Wallkill River Watershed Alliance)
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Water quality monitoring
Riverkeeper is the go-to source for information about the quality of the water along the Hudson River and its tributaries
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Emerging and unregulated contaminants
Toxic chemicals can harm the health of people, wildlife, aquatic ecosystems
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Invasive species
Protecting the Hudson includes defending it against outside threats