/-70.5137209,41.6355336,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
John’s pond : Herring run
Mashpee, Massachusetts, United States
Waterbody Type:Pond
Last observed: August 20, 2025 Monitored since: August 20, 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
Pond
Last observed: August 20, 2025 Monitored since: August 20, 2025
/-83.9461381,46.2890472,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake Huron - Gawas Bay: Gawas Bay Channel
Ontario, Canada
Waterbody Type:Lake
Last observed: August 20, 2025 Monitored since: May 28, 2022
/-0.8000064,51.2716592,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Eelmoor Marsh SSSI: Pond
Aldershot, England, United Kingdom
Waterbody Type:Unknown
Last observed: August 20, 2025 Monitored since: August 20, 2025
/-74.8332219,45.0318786,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St. Lawrence River: Guidon Park Beach Area
Long Sault, Ontario, Canada
Waterbody Type:River
Last observed: August 19, 2025 Monitored since: August 19, 2025
/-76.239761,44.899602,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Tay River: Last Duel Park Harbour - Tay River
Perth, Ontario, Canada
Waterbody Type:Unknown
Last observed: August 19, 2025 Monitored since: August 19, 2025
/-74.8383755,45.0305483,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St Lawrence River: Guidon Park area
Long Sault, Ontario, Canada
Waterbody Type:River
Last observed: August 19, 2025 Monitored since: August 19, 2025
/-79.230811,48.489967,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Duparquet: Lac Duparquet
Duparquet, Quebec, Canada
Waterbody Type:Lake
Last observed: August 19, 2025 Monitored since: July 13, 2021
/-1.0467696,51.2939065,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Petty's Brook: Tollhouse Meadow
Basingstoke And Deane Borough, Hampshire, United Kingdom
Waterbody Type:Stream
Last observed: August 19, 2025 Monitored since: January 17, 2025
/-0.2928972,51.5813232,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Wealdstone Brook: Imperial Way Bridge Lindsay Drive roundabout
Harrow, England, United Kingdom
Waterbody Type:Unknown
Last observed: August 19, 2025 Monitored since: August 19, 2025
/-76.0080957,44.8921659,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Rideau River: Lower Reach Park shoreline
Smiths Falls, Ontario, Canada
Waterbody Type:River
Last observed: August 18, 2025 Monitored since: August 16, 2023
/-75.543269,45.601211,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Jumeaux: Fosse JUM2
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: August 18, 2025 Monitored since: June 16, 2021
/-75.548375,45.610583,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Jumeaux: Fosse JUM1
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: August 18, 2025 Monitored since: June 16, 2021
/-78.9475393,46.7672347,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Kipawa lake: Kipawa Lake at Jawbones Bay
Quebec, Canada
Waterbody Type:Lake
Last observed: August 18, 2025 Monitored since: July 17, 2019
/-1.0533357,51.2716943,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
River Loddon: Bartons Mill
Basingstoke, Hampshire, United Kingdom
Waterbody Type:River
Last observed: August 18, 2025 Monitored since: January 15, 2025
/-0.0313248,51.667892,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Turkey Brook: Turkey Street (Downstream)
London, Enfield, United Kingdom
Waterbody Type:Stream
Last observed: August 18, 2025 Monitored since: February 26, 2024
/-0.0346307,51.668694,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Turkey Brook: Turkey Street (Upstream)
London, Enfield, United Kingdom
Waterbody Type:Stream
Last observed: August 18, 2025 Monitored since: February 26, 2024
/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: August 18, 2025 Monitored since: December 14, 2023
/-104.1759109,52.567308,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Kipabiskau: Kipabiskau Lake - 600m southeast of Kipabiskau Regional Park
Saskatchewan, Canada
Waterbody Type:Lake
Last observed: August 17, 2025 Monitored since: June 5, 2018
/-83.4927678,46.2544269,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Evan's Creek: Evan's Creek
Thessalon, Ontario, Canada
Waterbody Type:Creek
Last observed: August 17, 2025 Monitored since: July 18, 2025
/-75.552956,45.669942,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Maskinongé: Fosse M2
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: August 17, 2025 Monitored since: June 21, 2021
/-75.561461,45.664161,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lac Maskinongé: Fosse M3
Val-des-Monts, Quebec, Canada
Waterbody Type:Lake
Last observed: August 17, 2025 Monitored since: June 11, 2022