/-79.2545624,42.9638952,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Welland Canal : Welland International Flatwater Centre
Welland, Ontario, Canada
Waterbody Type:Canal
Last observed: July 16, 2025 Monitored since: January 10, 2025
Locations
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?
8,239 locations
+0 new sample locations added in the past 30 days
Canal
Last observed: July 16, 2025 Monitored since: January 10, 2025
/-74.6731546,45.028205,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Gazebo near water treatment plant.
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 16, 2025 Monitored since: July 16, 2025
/-75.730412,45.7151204,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Robinson: ROB1
Val Des Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: July 16, 2025 Monitored since: June 17, 2024
/-75.7675338,45.7307997,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Petit lac Huot: PHL1
Quebec, Canada
Waterbody Type:Lake
Last observed: July 16, 2025 Monitored since: June 14, 2024
/-0.2793893,51.3946718,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Hogsmill: Saipem S5 - Tolworth Brook
London, Kingston upon Thames, United Kingdom
Waterbody Type:River
Last observed: July 16, 2025 Monitored since: April 2, 2025
/-122.8846593,49.1285273,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Cougar Creek: Site - 8
Surrey, British Columbia, Canada
Waterbody Type:Creek
Last observed: July 16, 2025 Monitored since: July 16, 2025
/-122.917335,49.2753786,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Silver Creek: Silver Creek
Port Moody, British Columbia, Canada
Waterbody Type:Stream
Last observed: July 15, 2025 Monitored since: May 17, 2023
/-75.725953,45.700611,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Saint-Pierre: Fosse SP2
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: July 15, 2025 Monitored since: June 8, 2021
/-76.130471,46.7723221,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Coupal: Lac Coupal boat launch
Montcerf Lytton, Quebec, Canada
Waterbody Type:Lake
Last observed: July 15, 2025 Monitored since: July 15, 2025
/-0.2973819,51.405093,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Hogsmill: Middle Mill
London, Kingston upon Thames, United Kingdom
Waterbody Type:River
Last observed: July 15, 2025 Monitored since: June 21, 2024
/-75.1979184,44.8861217,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Mariatown Bay - Erosion Project site
Ontario, Canada
Waterbody Type:Bay
Last observed: July 14, 2025 Monitored since: July 24, 2023
/-79.5143652,43.7699627,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Black Creek: Black Creek South of Shoreham
North York, Ontario, Canada
Waterbody Type:Unknown
Last observed: July 14, 2025 Monitored since: July 14, 2025
/-79.9532814,43.2336276,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Tiffany Creek: Tiffany Creek d/s of Filman Road
Ancaster, Ontario, Canada
Waterbody Type:Creek
Last observed: July 14, 2025 Monitored since: July 14, 2025
/-79.9589623,43.2391242,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Tiffany Creek: Tiffany Creek d/s of Tiffany Falls
Ancaster, Ontario, Canada
Waterbody Type:Creek
Last observed: July 14, 2025 Monitored since: July 14, 2025
/-79.96169,43.2426516,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Tiffany Creek: Tiffany Creek u/s of Lower Lions Club Road
Dundas, Ontario, Canada
Waterbody Type:Creek
Last observed: July 14, 2025 Monitored since: July 14, 2025
/-79.9279928,43.2679363,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Spencer Creek: Spencer Creek d/s of Cootes Dr
Hamilton, Ontario, Canada
Waterbody Type:Creek
Last observed: July 14, 2025 Monitored since: July 14, 2025
/-79.9285772,43.2674002,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Spencer Creek: Spencer Creek u/s of Cootes Drive
Hamilton, Ontario, Canada
Waterbody Type:Creek
Last observed: July 14, 2025 Monitored since: June 4, 2025
/-75.582747,45.682336,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Truite: Fosse T1
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: July 14, 2025 Monitored since: June 13, 2021
/-75.569697,45.671394,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Bataille: Fosse B2
Quebec, Canada
Waterbody Type:Lake
Last observed: July 14, 2025 Monitored since: June 12, 2021
/-0.3692651,51.5853342,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Yeading Brook : Yeading Walk
London, Harrow, United Kingdom
Waterbody Type:Stream
Last observed: July 14, 2025 Monitored since: April 12, 2024
/-74.5693914,45.0546718,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence: St. Lawrence River
Cornwall, Ontario, Canada
Waterbody Type:Unknown
Last observed: July 13, 2025 Monitored since: July 13, 2025