Lake Winnipesaukee Alliance

Lake Winnipesaukee Alliance Formerly Lake Winnipesaukee Association, we are the leading voice for its protection, defenders of its water quality, custodians of its future.

Today, the LWA team was out on the Weirs Channel completing monthly water quality monitoring ahead of Bike Week traffic....
06/09/2026

Today, the LWA team was out on the Weirs Channel completing monthly water quality monitoring ahead of Bike Week traffic. During our outing, we collected a water sample to be analyzed through the University of New Hampshire's Lakes Lay Monitoring Program (LLMP) and conducted a temperature and dissolved oxygen profile to help track lake conditions throughout the water column.

A special thank you to today's volunteer Captain, Kyle Gassman of Freedom Boat Club, for helping make this work possible. This marks Kyle's second season supporting LWA's monitoring efforts, and we greatly appreciate his continued dedication to Lake Winnipesaukee!

📊 Lake Winnipesaukee Weekly Report Card🌊 Lake Level: 504.64ft, approximately 3.8 inches above full lake level.🦠 Cyanobac...
06/09/2026

📊 Lake Winnipesaukee Weekly Report Card

🌊 Lake Level: 504.64ft, approximately 3.8 inches above full lake level.

🦠 Cyanobacteria Update:
There are currently no lake-wide cyanobacteria warnings on Lake Winnipesaukee. However, multiple cyanobacteria reports have been documented on Lake Kanasatka, primarily on the southwest side of the lake, with concentrations above levels recommended for recreation.

⚠️ If you see suspicious water conditions:
• Avoid contact with mats, scums, or clumps in the water or along the shoreline.
• Keep children and pets away from areas with visible growths, as they are more likely to ingest contaminated material.
• Report potential blooms to NHDES: https://survey123.arcgis.com/share/151c9fc3c8214c2e93325f778e6c4f5

On the Healthy Swimming Mapper, red triangles indicate locations where cyanobacteria cell counts exceeded the state threshold of 70,000 cells/mL. Black triangles indicate documented sightings where a sample could not be collected.

View the Healthy Swimming Mapper: https://www.arcgis.com/apps/dashboards/8d84a6b03acb4efaab571b222c78447b

🚤 Boater Reminder:
With elevated water levels, shorelines and docks are especially vulnerable to erosion and damage. Please operate responsibly and minimize your wake near shore; even small boats can create significant impacts during high-water conditions.

Questions? Contact Maia Brown at [email protected] or call/text (603) 619-8703.

06/05/2026

Happy to be back at the 2026 Lakes Congress with our friends , , and other supporters working to protect and preserve life on the lake! Lots of fun vintage snapshots today too.

Another day, another sampling adventure! 🌊Yesterday, Maia Brown (Program Coordinator), Lily Horn (Water Quality Intern),...
06/04/2026

Another day, another sampling adventure! 🌊

Yesterday, Maia Brown (Program Coordinator), Lily Horn (Water Quality Intern), and Winni Opel (Water Quality Intern) headed out to the deepest monitoring site in the lake, located in the Broads. The team collected a temperature and dissolved oxygen profile along with a plankton haul to help us better understand the tiny organisms living throughout Lake Winnipesaukee's water column.

None of this would have been possible without the help of our dedicated volunteer water quality monitor, Rich Cram. Thank you, Rich, for helping make this work possible!

Cyanobacteria season is here.Our friends at Lake Kanasatka have already documented their first blooms of the year, servi...
06/03/2026

Cyanobacteria season is here.

Our friends at Lake Kanasatka have already documented their first blooms of the year, serving as an important reminder to stay aware of changing water conditions throughout the summer. If you notice water that looks unusual on Winni, contact LWA and report it to NHDES. Early detection helps protect people, pets, and our lakes.

Learn how to identify and report potential cyanobacteria blooms:
https://www.winnipesaukee.org/cyanobacteria/

Today marks the first day of Lake Winnipesaukee Alliance's 2026 in-lake Water Quality Monitoring season!LWA staff member...
06/02/2026

Today marks the first day of Lake Winnipesaukee Alliance's 2026 in-lake Water Quality Monitoring season!

LWA staff members Maia Brown (Coordinator of Program Operations), Lily Horn (Water Quality Intern), and Winni Opel (Water Quality Intern) kicked off the season by sampling four sites across Paugus Bay with the invaluable support of the Laconia Water Department.

During today's monitoring, the team collected water samples for analysis through the University of New Hampshire's Lakes Lay Monitoring Program (LLMP) and measured temperature and dissolved oxygen profiles at the deepest point in Paugus Bay. These data help us better understand the health of the Bay and track changes over time.

Thank you to the Laconia Water Department for helping make this important work possible!

Interested in learning more about our water quality monitoring efforts? Follow us on our social media channels and visit the link in our bio to stay up to date throughout the 2026 monitoring season.

05/26/2026

Take a peek into our team’s latest sampling round for the Volunteer River Assessment Program (VRAP), where we monitor 12 major tributaries flowing into Lake Winnipesaukee. 🌊

In today’s video, Bree Rossiter, LWA’s Associate Director, gives an overview of the program and shares why long-term tributary monitoring is so important to understanding and protecting the health of the lake and its watershed.

As Memorial Day weekend kicks off we’re pleased to be included in the first boating section of the season in the Laconia...
05/23/2026

As Memorial Day weekend kicks off we’re pleased to be included in the first boating section of the season in the Laconia Daily Sun.

The section announced Jon Dayton and John W. Marriott joining the LWA Board of Directors along with an article on the challenge of balancing the lake level.

This holiday weekend, please boat safely, mind your wake, and be aware of cold water conditions. We also encourage everyone to respect and protect the lake by following Leave No Trace principles: pack out what you pack in, dispose of waste properly, and help keep our shorelines and waters clean for everyone to enjoy.

Read the full boating section below.

https://print.laconiadailysun.com/app/LAC662/editionguid/2ba854ae-2ca9-4579-8a64-3798c5d9f92f/pagenumber/27

Aquatic invasive species pose an ongoing threat to native species, the economy, recreation, and human health and safety....
05/21/2026

Aquatic invasive species pose an ongoing threat to native species, the economy, recreation, and human health and safety. Many aquatic invasive species, including plants, fish, and mussels, can be accidentally transported when people go fishing and boating. By following a few simple steps every time you leave the water, you can help prevent the spread of aquatic invasive species and protect the environment.

CLEAN
Remove all visible plants, animals, and mud from boats, trailers, motors, anchors, and gear before leaving the launch. Rinse equipment and boat hulls with high-pressure, hot water when possible, and rinse interior compartments with low-pressure hot water. Flush motors with hot water according to the owner's recommendations when applicable.

DRAIN
Drain motors, bilges, livewells, ballast tanks, bait buckets, and all other water-containing equipment before leaving the water access site. Leave bilge plugs out during transport whenever possible.

DRY
Allow boats, trailers, and gear to completely air dry for at least five days before entering another waterbody, or thoroughly towel dry all surfaces if relaunching sooner.

🎣 DISPOSE
Dispose of unwanted bait, worms, and fish parts in the trash. When keeping live bait, replace water with spring or dechlorinated tap water. Never release bait, fish, or other organisms into a different waterbody.

Clean, Drain, Dry… After every waterbody, every time.

Address

45 NH Route 25, Unit A2
Meredith, NH
03253

Opening Hours

Monday 9am - 4pm
Tuesday 9am - 4pm
Wednesday 9am - 4pm
Thursday 9am - 4pm
Friday 9am - 4pm

Telephone

+16035816632

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