– Introducing Seneca Lake Deep Dive –
A webinar series by Seneca Lake Pure Waters featuring experts and research from around the watershed to keep you updated on the most pressing issues and activities affecting our lake!
Upcoming Webinars
June 24th, 2026 – 7:00 – 8:00PM
Understanding Harmful Algal Blooms with Mark Petzold
Mark brings more than three decades of engineering experience, having spent 33 years at Lockheed Martin working on complex systems integration projects. Since joining the Seneca Lake Pure Waters Board in 2022, he has led the organization’s expanding water quality initiatives, including PFAS and neonicotinoid pesticide testing, DEC WAVES stream monitoring, and a partnership with SUNY ESF to measure phosphorus loads from streams throughout the Seneca Lake watershed.
On Wednesday, June 24, from 7:00pm – 8:00 pm join Mark as he explores the connection between phosphorus and harmful algal blooms (HABs), the work being done to reduce phosphorus entering Seneca Lake, and why these efforts are critical to protecting water quality. We hope you’ll join us for another informative installment of Seneca Lake Deep Dive!
Past Webinars and Talks
June 16th, 2026 – 7:00 – 8:00PM
Hydrogeology and Lake Level with Bill Kappel
Bill Kappel spent more than 30 years as a hydrogeologist with the US Geological Survey before retiring in 2014. He provides a general overview of how Seneca Lake fits into the regional flow system and address questions on the management of Finger Lake water levels and river-flow management throughout the Oswego River Basin.
Invasive Species Webinar
What You Need to Know About Spotted Lanternfly & Box Tree Moth webinar, featuring Thom Allgaier, Invasive Species Coordinator for the NYS Department of Agriculture & Markets.
2026 Water Quality Symposium
Presentations by:
- Ian Smith – Click Here to View Slides
- Lydia Martin – Click Here to View Slides
- Dr. Roxanne Razavi
- Watch the Full Symposium on YouTube!
2025 Water Quality Symposium
Presentations by:
- Ian Smith – Marsh Creek Floodplain Restoration Project
- Lexie Davis – Harmful Algal Blooms: What They Are & What We Know
- Rick Smith – How Finger Lakes Harmful Algal Blooms, Foam & PFAS Transport Are Linked
- Watch the Full Symposium on YouTube!
2024 Annual Meeting
Includes:
- 2025 Awards
- Protecting Hemlocks
- Stream Flow Monitoring
- Nearshore Dock Program
- Watch the Full Meeting on YouTube!
Looking for Pure Waters publications?
Interested in our Annual Reports, LakeWatch Newsletters, or other updates? Go to our Reports & Publications or News pages. Browse the latest publications to stay informed about our work to protect Seneca Lake and the surrounding watershed.
