Preserve
Protect & Promote

Welcome to Seneca Lake Pure Waters Association

Seneca Lake Pure Waters Association is a 501(c)3 organization committed to preserving, protecting, and promoting the abundant resources of the largest Finger Lake. Seneca Lake is a source of drinking water, recreation, and economic opportunity for the greater community and its visitors. Our programs and partnerships make it possible to monitor water quality, educate the public, and evaluate threats to ensure the a healthy future for Seneca Lake and those who depend on it.

HABS 101

Learn how to recognize harmful algal blooms (HABs), why they happen, and how Seneca Lake Pure Waters Association is monitoring and responding to protect our lake.

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Live Lake-Friendly

As one of over 100,000 residents who use Seneca Lake as a primary water source, you can make a difference in the water quality of Seneca Lake.

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Be a Citizen Scientist

Volunteers and citizen science provides the backbone of our organization, allowing us to further our mission through collaborating with partners and providing education and outreach.

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Make an Impact

Membership dues, donations and grants help to fund our water quality monitoring programs and our efforts to preserve Seneca Lake for future generations.

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Our 2024–2025 Annual Report is Now Available

Seneca Lake Pure Waters Association has spent the past year protecting and improving the health of Seneca Lake through research, monitoring, public education, and advocacy. From tackling harmful algal blooms and invasive species to advancing watershed management and nutrient monitoring, our programs continue to grow thanks to the dedication of our volunteers, staff, partners, and supporters.

Discover the highlights of the past year, including new initiatives, program impacts, and community achievements.

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Featured Projects

Pure Brew Week

SNPR Projects

HWA

Latest News

September 24, 2025
PURE Brew Collaboration Raises $8,021 for Seneca Lake

GENEVA, N.Y. – Seneca Lake Pure Waters Association (Pure Waters) is beyond grateful to the Seneca Lake Order of Brewers (SLOBs) and Grist Iron Brewing Company for presenting us with a donation of $8,021 raised through this year’s PURE Pils collaboration brew. The check was presented last night, September 23, 2025, at a reception hosted...

September 17, 2025
Seneca Lake Pure Waters Welcomes New Board Members

GENEVA, N.Y. — Seneca Lake Pure Waters Association (Pure Waters) is pleased to announce the election of two new members to its Board of Directors, as voted upon at our Annual Meeting on Thursday, September 11: John Kirk and Erik Olsen. Both bring extensive professional experience and a shared commitment to protecting and preserving Seneca...

September 12, 2025
Seneca Lake Pure Waters 2025 Volunteer Recognition

GENEVA, N.Y. – Seneca Lake Pure Waters Association (Pure Waters) is proud to honor the dedicated volunteers and supporters who help protect and preserve Seneca Lake. During the 2024- 2025 fiscal year alone, more than 170 volunteers contributed 3,290 hours supporting water quality monitoring, community outreach, and restoration projects across the watershed. Their collective efforts...