A watershed is a topographic area where all the water within drains to a common point (ex: Belleisle Bay). The health of a watershed is very important because any impacted or poor quality water will eventually flow downstream to the common point and thus have an impact on it.

IMPORTANT INFORMATION FOR RESIDENTS:

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The Environment Matters:
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Real-time Hydrometric stations

The Belleisle Watershed covers approximately 37,000 square Km – from Mercer Settlement to Lower Kars on the Northern side and from Pearsonville to Kingston Corner on the Southern side. The Belleisle Bay itself (approximately 24 square Km) is an offshoot of the Saint John River but also has 20 named tributaries feeding into it. Twelve of these named tributaries have been assessed by the BWC since 2013 (underlined in the list). These stream assessments examine the water quality, fish habitat, and riparian (stream side) health of numerous sites along the watercourse. From these assessments, recommendations for improving the overall health of the watercourse were made and can be found in the yearly ETF reports.


  1. Second Run Brook
  2. First Run Brook
  3. Urquharts Brook
  4. Daley Brook
  5. Vals Brook
  6. Grant Brook
  7. Spragg Brook – lower section only
  8. Stewarton Brook
  9. Belleisle Creek
  10. Elm Brook
  11. Ketchum Brook
  12. Taylors Brook
  13. Joliffs Brook
  14. Irish Settlement Brook
  15. Midland Brook
  16. Reddin Brook
  17. Peters Brook
  18. Kingston Creek
  19. Hamilton Brook (Glenburn)
  20. Bates Brook

What is a Watershed?

The Belleisle Watershed covers approximately 37,000 ha – from Mercer Settlement to Lower Kars on the Northern side and from Pearsonville to Kingston Corner on the Southern side. The Belleisle Bay itself (approximately 24 Km2) is an offshoot of the Saint John River but also has 20 named tributaries feeding into it.


Thirteen of these named tributaries have been assessed by the BWC since 2013 (underlined in the list). These stream assessments examine the water quality, fish habitat, and riparian (stream side) health of numerous sites along the watercourse for more information, please see our ETF Reports or the project section of the website. 

  1. Second Run Brook
  2. First Run Brook
  3. Urquharts Brook
  4. Daley Brook
  5. Vals Brook
  6. Grant Brook
  7. Spragg Brook – lower section only
  8. Stewarton Brook
  9. Belleisle Creek
  10. Elm Brook
  11. Ketchum Brook
  12. Taylors Brook
  13. Joliffs Brook
  14. Irish Settlement Brook
  15. Midland Brook
  16. Reddin Brook
  17. Peters Brook
  18. Kingston Creek
  19. Hamilton Brook (Glenburn)
  20. Bates Brook


The Belleisle Bay is frequently used for recreational activities (swimming, boating, and fishing) by the residents and the many cottage owners that live within the rural communities that make up the watershed. Therefore the water quality of the bay is important to many community members to ensure these activities can continue for future generations. 


The most notable industries within the watershed are agriculture and forestry. Both of these industries can have impacts to the water quality and fish habitat such as sedimentation and nutrient runoff. In 2017, the BWC began monitoring the water quality of the Belleisle Bay at 8 sites. Preliminary results from this monitoring revealed that the bay is in good standing.  

About The Belleisle Watershed:

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