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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Your Gift Protects Our Lake’s Legacy

Seneca Lake has given generations of families countless memories—swimming, boating, fishing, and gathering by the water’s edge. Today, it needs your help to remain healthy and thriving.

Your donation to Seneca Lake Pure Waters Association supports critical programs that protect water quality, preserve wildlife, and ensure the lake remains a source of joy and inspiration for generations to come. Every gift makes a difference.

Give Today. Protect Tomorrow.

Featured Projects

Pure Brew Week

SNPR Projects

HWA

Latest News

May 1, 2026
Seneca Lake Water Level Condition

Seneca Lake water levels have risen noticeably following a series of rainfall events over the past two weeks across the watershed. Based on observations from gauges in Geneva and Watkins Glen, the watershed has received on the order of 2 to 3 inches of rain over the past 14 days, with approximately 1.5 to 2.0...

February 11, 2026
Winter 2026 LakeWatch: Updates from Across Seneca Lake

Geneva, N.Y. – With Seneca Lake deep in winter, the shoreline is quieter, but the work to protect the lake continues. Our 2026 Winter LakeWatch newsletter is now available, featuring recent updates, ongoing projects, and stories from across the watershed — including a special video interview with Tom Burrall of C.S. Burrall & Son Inc....

February 6, 2026
Hemlock Woolly Adelgid and Seneca Lake Water Quality in the Local Spotlight

GENEVA, N.Y. – Our work to protect hemlock trees around Seneca Lake has been getting some helpful attention in local media, giving us the chance to talk more openly about Hemlock Woolly Adelgid (HWA) and why it matters for lake health. Earlier this week, Benjamin Klein, association director of Seneca Lake Pure Waters Association (Pure...