/-81.6380309,43.7230407,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Maitland River: Little Falls
Goderich, Ontario, Canada
Waterbody Type:River
Last observed: July 5, 2025 Monitored since: July 5, 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?
8,226 locations
+33 new sample locations added in the past 30 days
River
Last observed: July 5, 2025 Monitored since: July 5, 2025
/-0.3204823,51.490686,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Brent: Clitheroe Island - Boston Manor Park
London, Hounslow, United Kingdom
Waterbody Type:River
Last observed: July 5, 2025 Monitored since: October 1, 2024
/-0.3210282,51.4900147,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Brent: Duckweir - Clitheroe Island - Boston Manor Park
London, Hounslow, United Kingdom
Waterbody Type:Unknown
Last observed: July 5, 2025 Monitored since: October 1, 2024
/-0.3413701,51.50289,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Brent River: Brent_41 Union Canal Towpath
London, Ealing, United Kingdom
Waterbody Type:River
Last observed: July 5, 2025 Monitored since: February 1, 2025
/-75.7451534,45.6504084,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac McGlashan: Entrance near road run-off
Val Des Monts, Quebec, Canada
Waterbody Type:Unknown
Last observed: July 4, 2025 Monitored since: May 1, 2025
/-77.0338583,43.9663801,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Black River: Black River outflow to Lake Ontario
Milford, Ontario, Canada
Waterbody Type:River
Last observed: July 4, 2025 Monitored since: April 13, 2017
/-76.1928823,44.801179,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Big Rideau Lake: Lombardy
Ontario, Canada
Waterbody Type:Lake
Last observed: July 4, 2025 Monitored since: May 19, 2018
/-77.0522046,43.9189169,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Creek leading to South Bay on Lake Ontario: South Bay Cres Public Boat Launch
Milford, Ontario, Canada
Waterbody Type:Creek
Last observed: July 4, 2025 Monitored since: March 28, 2018
/-75.712173,45.4582493,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Gatineau River: Gatineau River - rue Jacques Cartier / rue Blais
Gatineau, Quebec, Canada
Waterbody Type:River
Last observed: July 4, 2025 Monitored since: October 31, 2017
/0.0866675,51.497421,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Gallions Lake : Gallions Lake
London, Greenwich, United Kingdom
Waterbody Type:Lake
Last observed: July 4, 2025 Monitored since: April 25, 2024
/0.0856161,51.497496,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Gallions Lake 1: Gallions Lake 1
London, Greenwich, United Kingdom
Waterbody Type:Lake
Last observed: July 4, 2025 Monitored since: January 25, 2023
/-60.6518912,45.9183842,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Amaguadees Pond: Amaguadees Pond - Swampy Bridge
Eskasoni, Nova Scotia, Canada
Waterbody Type:Pond
Last observed: July 3, 2025 Monitored since: July 3, 2025
/-60.6489944,45.9189493,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Bras d'Or Lake: Castle Bay Beach
Castle Bay, Nova Scotia, Canada
Waterbody Type:Estuary
Last observed: July 3, 2025 Monitored since: May 29, 2025
/-77.1610379,43.8523242,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Ontario at Soup Harbour: Point Petre Provincial Wildlife Area
Ontario, Canada
Waterbody Type:Lake
Last observed: July 3, 2025 Monitored since: May 16, 2023
/-81.5521788,43.7351351,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Maitland River: Blyth Brook
Goderich, Ontario, Canada
Waterbody Type:River
Last observed: July 3, 2025 Monitored since: July 3, 2025
/-0.0298425,51.5709771,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dagenham Brook : Dagenham Brook Bridge Rd D/S
London, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: July 3, 2025 Monitored since: April 29, 2025
/-0.5087632,51.4252716,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Thames: Thames backwater
Staines Upon Thames, England, United Kingdom
Waterbody Type:Unknown
Last observed: July 3, 2025 Monitored since: May 5, 2025
/-122.8862127,49.1284348,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Cougar Creek: Cougar Creek 5
Surrey, British Columbia, Canada
Waterbody Type:Creek
Last observed: July 3, 2025 Monitored since: July 3, 2025
/-77.2211194,43.8987273,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Outlet River: Outlet River at Bridge on County Rd 18
Ontario, Canada
Waterbody Type:River
Last observed: July 2, 2025 Monitored since: June 18, 2019
/-77.1555877,43.9377398,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Tributary entering SE End of East Lake: Cherry Valley Lions Memorial Park Boat Launch Dock
Cherry Valley, Ontario, Canada
Waterbody Type:Creek
Last observed: July 2, 2025 Monitored since: April 28, 2017
/-75.6557608,45.8280816,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac du Brochet: BR1
Quebec, Canada
Waterbody Type:Lake
Last observed: July 2, 2025 Monitored since: June 4, 2024