Jemseg Grand Lake Watershed Association

New Brunswick, Canada

Join Us Donate
  • Home
  • About Us
    • About the Association
    • Membership
    • Partners and Supporters
    • Board of Directors
  • Projects
    • Education
      • Webinars
      • Workshops
      • Cyanobacteria
    • Water Quality Monitoring
    • Eurasian Water Milfoil
    • Shoreline Green Zones
  • Resources
    • Explore Our Watershed
    • Newsletters
    • Resources for Educators
    • For Kids
    • Reports
    • WAWA Handbook
  • Calendar
  • News
  • Contact Us
  • Shop
  • Login
    • Board of Directors
    • Members

About Us

Welcome to the Jemseg Grand Lake Watershed Association.  We are a committed group of volunteers working to create and maintain a healthy watershed for all, while fostering a culture of shared responsibility and stewardship of this wonderful resource.  Our watershed covers 3,950 square kilometres, and is home to Grand Lake, the largest freshwater lake in the Maritimes (171 square km).

The above image shows our watershed in green, outlined in red, as defined by the New Brunswick Hydrographic Network.  Grand Lake is the largest body of water in the watershed, located in the southeast corner of the green watershed area (blue shaded area).  The Jemseg Grand Lake Watershed encompasses all lakes, streams, rivers, and other water bodies whose water eventually flows into the Jemseg River.  The Watershed is centrally located in New Brunswick, very near the capital city of Fredericton.  Jemseg is a community at the head of the Jemseg River through which all water exiting our watershed flows into the Wəlastəkw (Saint John River).

We are a committed group of volunteers who care about the Jemseg Grand Lake Watershed ecosystem.  The natural beauty, history, water activities and unique flora, fauna and wetlands of our watershed have attracted generations of summer and permanent residents, starting with the First Nations Wəlastəkwewiyik, people of the Wəlastəkw (Saint John River).  Wəlastəkw is the Maliseet name meaning “beautiful river”.

Search This Site

View All Events

JGLWA On X (formerly Twitter)

Jemseg Grand Lake Watershed Association Follow

Working together to achieve our goal: a healthy watershed ecosystem for all.

JemsegA
jemsega

Jemseg Grand Lake Watershed Association

@jemsega ·
3 Nov

Jemseg Grand Lake Watershed Association - November 3 2026 Meeting Reminder - https://mailchi.mp/f4ca5fe0db57/jemseg-grand-lake-watershed-association-may-2023-newsletter-17454430

jemsega

Jemseg Grand Lake Watershed Association

@jemsega ·
27 Oct

Jemseg Grand Lake Watershed Association - November 3 2026 Meeting Reminder - https://mailchi.mp/06dd8f2fe738/jemseg-grand-lake-watershed-association-may-2023-newsletter-17452662

jemsega

Jemseg Grand Lake Watershed Association

@jemsega ·
5 Oct

Jemseg Grand Lake Watershed Association - October 6 2026 Meeting Reminder - https://mailchi.mp/8c2d5690b3be/jemseg-grand-lake-watershed-association-may-2023-newsletter-17451961

JGLWA on Facebook

Jemseg Grand Lake Watershed Association

17 hours ago

Jemseg Grand Lake Watershed Association
Website Maintenance Announcement!Our website may experience some downtime in the coming days due to maintenance.jemseggrandlakewatershed.ca will be renamed to jglwa.caThank you for your patience. ...
View on Facebook (opens in a new tab)
· Share

Share on Facebook (opens in a new tab) Share on Twitter (opens in a new tab) Share on LinkedIn (opens in a new tab) Share by Email (opens in a new tab)

Jemseg Grand Lake Watershed Association

4 days ago

Jemseg Grand Lake Watershed Association
Cyanobacteria monitoring is done for the season!The Cyanotrackers have received a well-deserved scrubbing. Thank you to the Hammond River Angling Association for their efforts monitoring New Brunswick’s water.#newbrunswick #douglasharbournb #cumberlandpointnb #cyanobacteria ...
View on Facebook (opens in a new tab)
· Share

Share on Facebook (opens in a new tab) Share on Twitter (opens in a new tab) Share on LinkedIn (opens in a new tab) Share by Email (opens in a new tab)

Jemseg Grand Lake Watershed Association

1 week ago

Jemseg Grand Lake Watershed Association
Eurasian Water Milfoil Removal Workshop September 2026One of our focuses was to help people learn to identify EWM from other species.We collected real plants to show, and made a new Milfoil Identification Guide, which you can find on our website (link in bio).EWM was removed by hand by a scuba diver - thank you Skylar! We had planned to use a weight and float system to make plots for removal, but the water was too muddy to see them!The New Brunswick Invasive Species Council did a demonstration with a mobile Boat Decontamination Station. The unit can collect and heat up water on-site, and use a pressurized spray to rid boats of clingy critters. Thank you to Nate, NBISC, and DFO for the demonstration! It is extremely important to keep equipment clean to avoid spreading invasive species.The EWM was collected in burlap bags donated to us by Miltown Roasters.After the event, the sediment was rinsed out and non-target species were removed.The EWM was dried out in the sun over several days, and weighed.In all, we removed about 1.6 pounds of Eurasian Water Milfoil (dry).The event was great, and really highlighted the importance of preventing invasive species from spreading in the first place. Clearing even just a small area is very resource intensive.Further thanks to Wildlife Habitat Canada for funding this endeavor, and to the duck hunting community for making their work possible; to Dieter and Mary for their help engineering the plan; to the Fredericton Yacht Club for their support; to CBC News New Brunswick for allowing us to spread the word about EWM on Information Morning; and to Willow for assisting with the EWM cleaning and weighing process.#eurasianwatermilfoil #invasivespecies #newbrunswick #douglasharbournb #nbisc #nbinvasives #WildlifeHabitatCanada #nature #environment ...
View on Facebook (opens in a new tab)
· Share

Share on Facebook (opens in a new tab) Share on Twitter (opens in a new tab) Share on LinkedIn (opens in a new tab) Share by Email (opens in a new tab)

Contact Us

Jemseg Grand Lake Watershed Association
6092 Route 105
Waterborough, NB E4C 2X8

Search Our Site

Copyright © 2026 Jemseg Grand Lake Watershed Association