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is to inspire and empower communities to safeguard water resources by cultivating scientific literacy through volunteer water quality monitoring, certified laboratory analyses, and education.
Community Science Institute's Mission
Visit the Database
This public archive contains water quality data from Western NY stream and lake samples collected by local volunteer partners. These partnerships generate reliable, long-term data, supplement state monitoring efforts, and inform water resource management strategies while cultivating scientific literacy.
CSI's Water Quality Database
Learn More!
CSI is the largest certified laboratory—and the only nonprofit lab—in Tompkins County. In addition to our nonprofit monitoring programs, we provide fee-based water analysis services for residents, businesses, and government agencies.
Test Your Water
Learn More!
By engaging young learners and families in place-based, hands-on experiences, Journey of Water builds the knowledge, confidence, and sense of responsibility needed to care for local watersheds today and into the future.
Journey of Water
Click here to report a HAB!
Since 2018, Community Science Institute has led a volunteer-driven, community-powered harmful algal bloom monitoring program around Cayuga Lake that blends rigorous science, open data, and strong local partnerships to ensure timely and accurate HAB reporting.
Cayuga Lake Harmful Algal Bloom Monitoring
Who We Are
Nonprofit Organization
Founded in 2000, Community Science Institute (CSI) is a 501(c)(3) nonprofit organization and NYSDOH ELAP-certified water testing laboratory based in Ithaca, New York.
Water Quality Database
CSI’s Water Quality Database provides free, open-access surface and groundwater data from approximately 3,000 square miles of CNY. Water samples collected by volunteer monitors are analyzed at CSI’s certified laboratory, and results are made publicly available as raw data, maps, tables, and interactive graphs.
Recent News
Events
Recent Posts
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CSI is hiring: Office Administrator
The Office Administrator will play a vital role in supporting the smooth
20 July, 2026 -
From Community Report to Regulatory Action: How One Cayuga Inlet Observation Triggered a Rapid Scientific Response
CSI’s Outreach & Programs Coordinator, Alyssa Johnson, collects a sample from Cliff
6 May, 2026