Water Quality


The Township of the Archipelago

Visit the TOA Water Quality page and review the latest results from 2016. 

Since 2001, the Township has partnered with ratepayer associations within The Archipelago to conduct water quality monitoring. Participating associations include most of our inland lakes and Georgian Bay. The Township supplies the equipment, coli-plates, training and consultant, while Association volunteers carry out the monitoring and provide the data to the Township.

This spring The Archipelago has partnered with the Georgian Bay Biosphere Reserve (GBBR) on environmental programming, which includes coordinating the Township’s water quality monitoring program. GBBR has been in touch with water quality monitors and ratepayer associations about the registration process and equipment logistics for this year’s program.

Please note that formal training is not planned for this year, but if you are in need of a refresher session or clarification about the water quality monitoring protocols, please get in touch. If you are interested in becoming a water quality monitoring volunteer, please contact David Bywater, Georgian Bay Biosphere Reserve (GBBR) This email address is being protected from spambots. You need JavaScript enabled to view it., 705-774-0978.

Dorset Environmental Science Centre

-Click here to Review the Lake Partner program

-Click here to Search for site specific water quality results

Blackstone Water Quality Report

Download PDF


State of the Bay




What Is Phosphorus

Phosphorus is a naturally occurring element and one of the three nutrients required by all forms of life. It's very important in our lake ecosystems because it is the limiting nutrient in them. In other words, there is naturally an abundance of potassium and nitrogen, so any extra P that is added to a lake is quickly used by the ecosystem to create new plant growth, like algae.

How often should I pump my septic?

You should have your septic tank pumped out at least once every five years, even if it is not full. Every 2-3 years is even better.

What plants to use on the shoreline?

Always try to plant native species. More specific information is available on the GBBR website here, your local nursery or by contacting the GBBR office.

What makes the water discolour?

Most lakes in are very clear because they have very few nutrients but many factors can contribute to the colour of a lake. Dissolved organic carbon, usually found in lakes whose watershed is rich in peaty soils, is most often responsible for the `tea` colour of some lakes. Some lakes can appear green if they are biologically productive (that is, have higher nutrient levels).

Fire Rating

Current Rating: 

Day Time Burning Permits may be issued.