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.
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.
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.
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.
Upcoming Event: Seneca Lake Summer Soirée

Join us for a vibrant evening of food, music, and celebration at the Watkins Glen Harbor Hotel — all in support of Seneca Lake Pure Waters Association.
Enjoy live music from The Decades Band, FLX wines, a delicious dinner, and a virtual auction featuring unique local experiences and lake-inspired items. All proceeds support our mission to protect and preserve Seneca Lake.
Save the date: July 23, 2025.
Tickets go live June 1.
Space is limited — reserve your spot.
Featured Projects
Latest News
May 30, 20252025 Seneca Lake Summer Guide Now Available
May 28, 2025Seneca Lake Wine Trail Supports Pure Waters Association
May 23, 2025Seneca Lake Water Quality Symposium Brings Community Together
Videos of Seneca Lake Pure Waters Association
Instagram for Seneca Lake Pure Waters Association
VOLUNTEER
Make a Difference for Seneca Lake!
It takes many hands and hundreds of volunteer hours to support Pure Waters Water Quality Programs and overall operations.
We have a place where you can help, regardless of your skill set or interests. Please jump in and volunteer today!