/-0.763076,51.08542,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Wey: Near Prince of Wales Pub
Hampshire, United Kingdom
Waterbody Type:River
Last observed: July 27, 2025 Monitored since: March 19, 2023
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?
8,238 locations
+8 new sample locations added in the past 30 days
River
Last observed: July 27, 2025 Monitored since: March 19, 2023
/-83.7399602,46.3626705,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Thessalon River: Rydal Bank
Ontario, Canada
Waterbody Type:River
Last observed: July 27, 2025 Monitored since: June 28, 2023
/-79.2344499,43.8588129,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Rouge River: Rouge River at Fairview Vista Park
Scarborough, Ontario, Canada
Waterbody Type:River
Last observed: July 27, 2025 Monitored since: October 6, 2024
/-77.7209439,48.1815752,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac: Lac des soeurs
Quebec, Canada
Waterbody Type:Lake
Last observed: July 26, 2025 Monitored since: June 29, 2020
/-74.8342627,45.0302443,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
At. Lawrence River - Lake St. Lawrence : Guindon Boat Launch Bay
Long Sault, Ontario, Canada
Waterbody Type:Bay
Last observed: July 26, 2025 Monitored since: June 22, 2025
/-77.7890281,48.1212989,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Blouin: Lac Blouin
Val D'Or, Quebec, Canada
Waterbody Type:Lake
Last observed: July 26, 2025 Monitored since: June 15, 2020
/-79.3037589,43.877642,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River: Rouge River
Markham, Ontario, Canada
Waterbody Type:River
Last observed: July 26, 2025 Monitored since: October 7, 2024
/-79.3283143,43.8744406,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
/-74.5144486,45.1092007,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St Lawrence River: Tree Haven Canal
Ontario, Canada
Waterbody Type:River
Last observed: July 26, 2025 Monitored since: June 25, 2022
/-74.4826599,45.1318009,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St Lawrence: Lakeview ... bay
Ontario, Canada
Waterbody Type:River
Last observed: July 26, 2025 Monitored since: May 28, 2023
/-74.493742,45.1284503,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Raisin River: Raisin River Marina
Ontario, Canada
Waterbody Type:River
Last observed: July 26, 2025 Monitored since: March 30, 2024
/-102.3487914,50.5435331,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Round Lake: Home Shore
Saskatchewan, Canada
Waterbody Type:Lake
Last observed: July 26, 2025 Monitored since: October 27, 2024
/-102.3487788,50.5434947,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Round lake: Dock testing
Saskatchewan, Canada
Waterbody Type:Lake
Last observed: July 26, 2025 Monitored since: May 28, 2022
/-75.4221725,45.5961133,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lievre River: Lievre River Buckingham
Gatineau, Quebec, Canada
Waterbody Type:Unknown
Last observed: July 26, 2025 Monitored since: July 26, 2025
/-70.616684,48.2879777,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Valérie: Lac Valérie
Quebec, Canada
Waterbody Type:Lake
Last observed: July 26, 2025 Monitored since: June 22, 2025
/-70.6205673,48.2544555,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
/-0.5155206,51.148122,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Cranleigh Waters: Cranleigh Waters Stream
Cranleigh, England, United Kingdom
Waterbody Type:Stream
Last observed: July 26, 2025 Monitored since: June 30, 2025
/-0.5668445,51.3995516,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Bourne: Cabrera Riverside Walk
Virginia Water, Surrey, United Kingdom
Waterbody Type:Stream
Last observed: July 26, 2025 Monitored since: December 29, 2024
/-1.7280791,52.6922637,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
/-70.6308031,48.2826788,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
/-79.552474,43.0984447,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Twenty Mile Creek: Smithville Nature Path
Smithville, Ontario, Canada
Waterbody Type:Creek
Last observed: July 26, 2025 Monitored since: May 24, 2025