/-76.2298,44.727,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Big Rideau Lake: Cormorant Island
Portland, Ontario, Canada
Waterbody Type:Lake
Last observed: July 7, 2025 Monitored since: June 8, 2018
Locations are places where people have tested before. Click on any location report to view water health trends at that spot over time. What's this?
+79 new sample locations added in the past 30 days
Portland, Ontario, Canada
Waterbody Type:Victoria, British Columbia, Canada
Waterbody Type:Victoria, British Columbia, Canada
Waterbody Type:Victoria, British Columbia, Canada
Waterbody Type:Baddeck, Nova Scotia, Canada
Waterbody Type:Baddeck, Nova Scotia, Canada
Waterbody Type:Ontario, Canada
Waterbody Type:Baddeck, Nova Scotia, Canada
Waterbody Type:Baddeck, Nova Scotia, Canada
Waterbody Type:Buckhurst Hill, Waltham Forest, United Kingdom
Waterbody Type:Buckhurst Hill, Redbridge, United Kingdom
Waterbody Type:Buckhurst Hill, Redbridge, United Kingdom
Waterbody Type:Val-des-Monts, Quebec, Canada
Waterbody Type:Val-des-Monts, Quebec, Canada
Waterbody Type:Val-des-Monts, Quebec, Canada
Waterbody Type:Val-des-Monts, Quebec, Canada
Waterbody Type:Val-des-Monts, Quebec, Canada
Waterbody Type: