Interested in having your water (well or beach) tested for E.coli? The BWC will be once again offering water testing services during our water monitoring field season. We take care of everything for you - sampling, delivery to a certified lab for analysis, and review of the results! Please contact the BWC by email (info *at*belleislebay.ca; *replace at with @) for inquires.

Overall, the water quality monitoring from the 2017 field season revealed that the Belleisle Bay should be considered in good condition.

  • The water temperatures and dissolved oxygen concentrations are capable of supporting fish and other aquatic life. 
  • The conductivity, pH, and turbidity were within normal ranges for freshwater
  • The E.coli concentrations were well below any Health Canada guideline.
  • The phosphate concentration (essential plant nutrient) assessed over the summer places the Bay within the mesotrophic or mid-range in terms of nutrient load. 
  • The nitrate concentration was below the Canadian Council of Ministers of the Environment guidelines. 


For more information, please see our 2017 ETF Report. 


*Please note that future results will not be reported in report format until the following year as it takes time to compile and analyze the data (ie. summer 2018 data will not be presented in report format until spring 2019). If you would like the data, please contact us or see the following section for the 2018 data!

Note: In the future (by Fall 2018), data will be uploaded to Atlantic Datastream instead of this web page. Field data and some lab parameters from 2017 can already be found on the beta version of the website.

What we found:

The BWC began water quality monitoring within the Bay in the summer of 2017 to get a baseline data set in order to track changes into the future and determine the overall health of the Belleisle Bay. A total of eight sites were chosen throughout the bay and were sampled five times over the field season (June to August). 

In the field, simple water quality parameters are measured with hand-held meters. The following parameters are assessed within the bay:

  •  Water Temperature -  can affect many different processes within a waterbody (chemical, physical, and biological). Water temperature is also very important for fish habitat as some species (Salmonids) can only tolerate certain temperatures. 
  • Conductivity -  is the measure of the waters ability to conduct an electrical current caused by dissolved ions in the water. It is monitored to determine potential influences or runoff impacting a waterbody.  
  • pH - is the basicity or acidity of the water and can also affect different processes. Outside of its normal range in freshwater (6.5 to 9) it can be detrimental to aquatic life. 
  • Dissolved Oxygen - is the concentration of oxygen found dissolved in the water and available to aquatic species. It has an inverse relationship with water temperature (ie. higher water temperature results in lower dissolved oxygen concentration). Higher dissolved oxygen concentrations can support a wide diversity of aquatic species.   
  • Turbidity - is the measurement of the opacity or cloudiness of the water. It is determined by shinning a light through a sample and measuring how much is scattered.  It can be affected by any particles in the water such as sediment, algae, pollen, and bacteria. It is monitored to determine potential runoff issues and the potential presence of algae over the summer months.
  • Secchi disk depth - is a small black and white disk that is used to determine water clarity by lowering it into the water column until it cannot be seen. Over time this measurement will determine the normal or mean clarity of the water at a particular site.


Water samples are also collected and send to a certified lab for E.coli, nutrient, and metal analysis. This data is used to determine if any parameter is out of nature and/or safe concentrations and to determine the potential for vegetation growth due to nutrient overload. 

Along with physical water quality monitoring during the 2018 field season, a series of water temperature data loggers will have been placed throughout the bay. Data loggers will be placed at three different depths to determine the temperature profile.

Plans for 2018:

Raw 2018 Data:

Click the links below to access the raw lab data. Unless stated otherwise, results are presented from site 1 to site 8 respectfully. Field data can found by clicking here


June 13, 2018 - E.coli Results

June 13, 2018 - Water chemistry and metals

June 29, 2018 - E.coli Results **

June 29, 2018 - Water chemistry and metals**

** Sampled after a large rain event to determine potential upstream runoff effects. Samples do not reflect normal Bay water quality. ​​

July 12, 2018 - E.coli Results

July 12, 2018 - Water chemistry and metals

July 24, 2018 - E.coli Results

July 24, 2018 - Water chemistry and metals

August 8, 2018 - E.coli Results

August 8, 2018 - Water chemistry and metals


Belleisle Bay Monitoring:

Private sampling: 

What we collect: