/-79.423821,43.9555129,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lake St. George: Lake St. George
Aurora, Ontario, Canada
Waterbody Type:Lake
Last observed: May 1, 2025 Monitored since: August 23, 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?
8,226 locations
+33 new sample locations added in the past 30 days
Lake
Last observed: May 1, 2025 Monitored since: August 23, 2023
/-81.2206578,42.9502818,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Ramp Saunders Pond Site 6 Westminster Ponds ESA (Eastern Side of the Ramp) : Ramp Saunders Pond Site 6 - Westminster Ponds ESA (Eastern Side of the Ramp)
London, Ontario, Canada
Waterbody Type:Pond
Last observed: May 1, 2025 Monitored since: May 10, 2021
/-1.6535782,52.2059037,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Avon: Swiffen Bank
Hampton Lucy, Warwickshire, United Kingdom
Waterbody Type:River
Last observed: May 1, 2025 Monitored since: October 2, 2024
/-0.1596004,51.639578,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pymmes Brook: Oak Hill Park 1 (Upstream)
London, Barnet, United Kingdom
Waterbody Type:Stream
Last observed: May 1, 2025 Monitored since: July 1, 2023
/-1.6595586,52.2127072,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Avon: Alveston Weir
Hampton Lucy, Warwickshire, United Kingdom
Waterbody Type:River
Last observed: May 1, 2025 Monitored since: October 2, 2024
/-0.1642156,51.6566677,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pymmes Brook: Downstream of Jack’s Lake
London, Barnet, United Kingdom
Waterbody Type:River
Last observed: May 1, 2025 Monitored since: February 26, 2025
/-88.3536172,42.0439865,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Sandy Creek: Sandy Creek in Elgin Township Wetland preserve
Elgin, Illinois, United States
Waterbody Type:Creek
Last observed: April 30, 2025 Monitored since: December 19, 2023
/-88.1725745,41.6104275,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lily Cache Creek: Lily Cache Creek
Plainfield, Illinois, United States
Waterbody Type:Creek
Last observed: April 30, 2025 Monitored since: November 4, 2021
/-88.1872107,41.5685172,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Lily Cache Creek: Lily Cache Creek
Plainfield, Illinois, United States
Waterbody Type:Creek
Last observed: April 30, 2025 Monitored since: November 4, 2021
/-88.1239343,41.8620328,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Winfield Creek: Winfield Creek at Emerson School
Wheaton, Illinois, United States
Waterbody Type:Creek
Last observed: April 30, 2025 Monitored since: December 6, 2023
/-88.1149435,41.8776296,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Winfield Creek,: West bridge, Winfield Creek, Northside Park
Wheaton, Illinois, United States
Waterbody Type:Creek
Last observed: April 30, 2025 Monitored since: November 21, 2024
/-88.135098,41.7544178,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
West DuPage River: Pioneer Park Canoe launch
Naperville, Illinois, United States
Waterbody Type:River
Last observed: April 29, 2025 Monitored since: November 29, 2024
/-88.3890224,41.7586586,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Blackberry Creek at Barnes Forest Preserve: Blackberry Creek at Barnes Forest Preserve
Aurora, Illinois, United States
Waterbody Type:Creek
Last observed: April 29, 2025 Monitored since: December 28, 2023
/-88.2762837,41.7938564,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Indian Creek: Molitor Bridge at Indian Creek
Aurora, Illinois, United States
Waterbody Type:Creek
Last observed: April 29, 2025 Monitored since: December 31, 2024
/-74.726279,45.019312,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
St Lawrence River: St Lawrence River
Ontario, Canada
Waterbody Type:Unknown
Last observed: April 29, 2025 Monitored since: April 29, 2025
/-88.1816769,41.796698,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
West branch DuPage river: McDowell Grove forest preserve
Naperville, Illinois, United States
Waterbody Type:River
Last observed: April 29, 2025 Monitored since: December 17, 2023
/-0.0233685,51.5646457,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dagenham Brook : Dagenham Brook D/S
London, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: April 29, 2025 Monitored since: September 1, 2024
/-0.0236905,51.5648593,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dagenham Brook : Dagenham Brook U/S
London, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: April 29, 2025 Monitored since: September 1, 2024
/-0.0225674,51.562406,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dagenham Brook: Upstream of Leyton Jubilee Park's double outfall (what3words: ///curving.cups.brings)
London, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: April 29, 2025 Monitored since: April 6, 2024
/-0.0221844,51.562256,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Dagenham Brook: Downstream of Leyton Jubilee Park's double outfall (what3words: ///curving.cups.brings)
London, Waltham Forest, United Kingdom
Waterbody Type:Stream
Last observed: April 29, 2025 Monitored since: April 6, 2024
/-88.1160621,41.7144886,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Pond: DuPage River Park - Small Pond - Site 2
Naperville, Illinois, United States
Waterbody Type:Pond
Last observed: April 29, 2025 Monitored since: November 30, 2024