/-90.1457405,32.3248196,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pearl River: LeFleurs Bluff State Park
Jackson, Mississippi, United States
Waterbody Type:River
Last observed: July 12, 2025 Monitored since: June 12, 2020
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?
8,158 locations
+91 new sample locations added in the past 30 days
River
Last observed: July 12, 2025 Monitored since: June 12, 2020
/-76.1849211,45.0458182,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Mississippi lake: My home
Carleton Place, Ontario, Canada
Waterbody Type:Lake
Last observed: July 12, 2025 Monitored since: June 27, 2025
/-75.550458,45.63835,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Gilmour: Fosse GM1
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: July 12, 2025 Monitored since: January 1, 2015
/0.064119,51.4019218,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Kyd Brook : Kyd Brook Hawkswood Estate
London, Bromley, United Kingdom
Waterbody Type:Stream
Last observed: July 12, 2025 Monitored since: July 8, 2023
/-0.2400212,51.3904896,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Brook: St Joseph Hood Memorial Playing Fields
London, Merton, United Kingdom
Waterbody Type:River
Last observed: July 12, 2025 Monitored since: January 11, 2025
/0.0196378,51.6262788,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Ching: Whitehall Outfall 5b
Buckhurst Hill, Redbridge, United Kingdom
Waterbody Type:River
Last observed: July 12, 2025 Monitored since: March 14, 2025
River Ching: Whitehall Outfall 5a
Buckhurst Hill, Redbridge, United Kingdom
Waterbody Type:River
Last observed: July 12, 2025 Monitored since: March 14, 2025
/0.0044888,51.606119,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
The Ching: Vincent Road
London, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: July 12, 2025 Monitored since: December 14, 2023
/-74.6295353,45.0334694,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St.Lawrence river : Blue anchor
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 12, 2025 Monitored since: July 12, 2025
/-89.6421719,32.6651016,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pearl River: Old Highway 13 Bridge
Lena, Mississippi, United States
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: September 19, 2018
/-89.5264721,32.7070001,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pearl River: Highway 35 Bridge
Carthage, Mississippi, United States
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: October 3, 2018
/-74.5693305,45.0546676,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence: Summerstown
Cornwall, Ontario, Canada
Waterbody Type:Unknown
Last observed: July 11, 2025 Monitored since: July 11, 2025
/-76.1731482,45.0617149,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Mississippi Lake: Sinclair Shore - Dock
Ontario, Canada
Waterbody Type:Lake
Last observed: July 11, 2025 Monitored since: June 16, 2020
/-74.6652589,45.0324967,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Grays Creek Marina
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: July 11, 2025
/-76.1710668,45.0618513,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Mississippi Lake: Mississippi Lake - by Willis Island
Ontario, Canada
Waterbody Type:Lake
Last observed: July 11, 2025 Monitored since: June 23, 2020
/-74.6436019,45.0354923,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Glen Walter
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: July 11, 2025
/-74.7009373,45.0178311,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Near Montreal Rd. Culvert outflow, outside of pit
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: June 19, 2025
/-74.7007442,45.0178305,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Montreal Rd. Culvert outflow
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: June 19, 2025
/-74.6994781,45.0164665,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: St. Lawrence River Dock River Intitute
Cornwall, Ontario, Canada
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: June 19, 2025
/-74.7014,45.016,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St Lawrence River: Cornwall
Ontario, Canada
Waterbody Type:River
Last observed: July 11, 2025 Monitored since: September 13, 2019
/0.0162571,51.6218346,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
The Ching: Newgate Street
Buckhurst Hill, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: July 11, 2025 Monitored since: July 19, 2024