water cleanliness

within 25 miles

Dec 2, 2025

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Earthwatch Institute

FreshWater Watch

To better manage and protect the world’s fresh water.

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Citizen ScienceClimate & WeatherNature & OutdoorsOcean Water MarineEducationGeology & Earth ScienceEcology & Environmentdata gatheringstreamfreshwaterstewardsdatabaseponddatadata collectionfresh water datacitizen sciencewater qualitywaterresearchsustainabilitylakecitizen scientistwater cleanlinessstewardshipnariverglobal

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