Lake Winnipesaukee Association – Keep Winni Blue

  The Lake Winnipesaukee Association (LWA) is a non-profit organization dedicated to protecting the water quality and natural resources of Lake Winnipesaukee and its watershed.  Through monitoring, education, stewardship, and science-guided approaches for lake management, LWA works to ensure Winnipesaukee’s scenic beauty, wildlife habitat, water quality and recreational potential continues to provide enjoyment long into the future.

Our programs and projects arise from a deep appreciation and love for the lake and its environment, and desire to keep it beautiful and clean for countless generations to come. Help us by making a donation today!

What’s New

Results of Water Quality Study for Moultonborough Bay and Winter Harbor

The results of a two-year study to assess the threats to water quality in Moultonborough Bay and Winter Harbor is available to download and read.  

The LWA contracted with FB Environmental Associates, out of Portland, ME, to assist with the project which involved analyzing land use, nutrient loading, water quality, and the identification of pollution sources to Moultonborough Bay and Winter Harbor.  FB Environmental presented the results of their analyses, along with an action plan of strategies to protect the value, uses, and beauty of the lake on September 24, 2020 via Zoom at LWA’s Annual Meeting.

The Moultonborough Bay and Winter Harbor Watershed Management Plan study is the sixth water quality study that the Lake Winnipesaukee Association has been involved with.  This stakeholder-driven process has proven successful in assisting communities around the lake in understanding how land use and development affects their local water quality, and provides communities, businesses, and residents with a road map and tools to achieve long term water quality improvement and protection.

Please click on the following links for more information regarding the completed study.

Funding for the Moultonborough Bay and Winter Harbor Watershed Management Plan came from several sources, including the towns of Tuftonboro and Wolfeboro, and section 319 of the Clean Water Act, administered by the NH Department of Environmental Services.


The LWA Board is pleased to welcome Kate Bishop, as our first Director of Development.

Diane Hanley, Board President, stated “We are thrilled to have Kate Bishop join us as Development Director of the Lake Winnipesaukee Association.  Kate brings a wealth of experience growing non-profits, with particular talent in planning, fundraising and fostering partnerships. Her long-standing ties to the Lake Winnipesaukee region also enhance our ability to reach out more effectively to the community and to achieve our mission.”

  • Our new office location is 1934 Lakeshore Road, Unit 207, Gilford, NH.  Our mailing address remains the same – P.O. Box 1624, Meredith, NH  03253

A Winnipesaukee Dozen Ways to Love the Lake

13 Ways to Love the Lake_Page_1If you would like to receive printed copies of the Winnipesaukee Dozen, please contact  our office.





Help Keep Winni Blue – Put a Sock In It!

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Proper boat maintenance protects our lake.  Oil and fuel can leak from your engine and collect in the bilge compartment.  When the bilge is activated, these chemicals are discharged into the lake.

Bilge socks, which absorb the excess oil and gas, are an inexpensive way to prevent these substances from polluting our water.

Install a bilge sock into your engine’s compartment at the beginning of the boating season, and remove and dispose of it during the winterization process of your vessel.  You can request your marina to do it, or do it yourself.  You should check the bilge compartment on a regular basis to be sure the sock is properly secured. 

Blue-heart-clipart-free-images-2  Be a Clean Boater!  Blue-heart-clipart-free-images-2

  • Use proper care when fueling your boat – do not top off your tank.
  • Do not wash your boat in the lake – only at an approved wash station, or away from the lake.
  • Use nontoxic, and chlorine and phosphate free cleaners.
  • Use Pump Out Stations – it is illegal to discharge untreated sewage into the lake.
  • Clean, drain, and dry your boat when trailering to help prevent the spread of invasive species from one waterbody to another.

Water Quality Data Available on line!

You can now access water quality data for Lake Winnipesaukee online! Check it out on the Winnipesaukee Gateway website: Winnipesaukee Gateway Monitoring Sites Map

It’s Winni Cool!


The Lake Winnipesaukee Association is a 501(c)(3) nonprofit organization working to protect the water quality and natural resources of Lake Winnipesaukee
and its watershed now and for future generations.