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

+38 new sample locations added in the past 30 days

East wickham: Woodlands farm, golf course land drain

London, Greenwich, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: March 9, 2025

East Wickham: Woodlands farm, shooters hill stream

London, Greenwich, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: March 9, 2025

Oxleas Meadow Site 2 : Oxleas Meadow 2

London, Greenwich, United Kingdom

Waterbody Type:
Creek
Last observed: August 11, 2025
Monitored since: April 25, 2024

Georgian Bay: Dyers Bay

Ontario, Canada

Waterbody Type:
Bay
Last observed: August 11, 2025
Monitored since: May 23, 2022

Lac Lockhart: Fosse LK1

Val-des-Monts, Quebec, Canada

Waterbody Type:
Lake
Last observed: August 11, 2025
Monitored since: June 9, 2021

Nottawaga Bay: Cawaja Beach

Tiny, Ontario, Canada

Waterbody Type:
Bay
Last observed: August 11, 2025
Monitored since: July 31, 2025

Dollis Brook: Riverside Park (Upstream)

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: May 20, 2023

Dollis Brook : Outfall at RMI Site

London, England, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: June 15, 2025

Dollis Brook: Riverside Park (Downstream)

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: May 20, 2023

Folly Brook: Folly pre confluence

London, England, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: February 5, 2025

Moosomin Resevoir: Baseline 3

Saskatchewan, Canada

Waterbody Type:
Bay
Last observed: August 10, 2025
Monitored since: June 28, 2024

Lac Dame: Fosse DA2

Quebec, Canada

Waterbody Type:
Lake
Last observed: August 10, 2025
Monitored since: June 9, 2021

Lac Dame: Fosse DA1

Quebec, Canada

Waterbody Type:
Unknown
Last observed: August 10, 2025
Monitored since: June 9, 2021

Wey Navigation : Murray’s Bridge

Addlestone, Surrey, United Kingdom

Waterbody Type:
Canal
Last observed: August 10, 2025
Monitored since: December 28, 2024

Slade Pond: Slade Pond Inlet

London, Greenwich, United Kingdom

Waterbody Type:
Pond
Last observed: August 10, 2025
Monitored since: April 25, 2024

Slade Pond: Slade Pond Outfall

London, Greenwich, United Kingdom

Waterbody Type:
Pond
Last observed: August 10, 2025
Monitored since: April 25, 2024

River Pool Linear Park: River Pool

London, Lewisham, United Kingdom

Waterbody Type:
River
Last observed: August 10, 2025
Monitored since: May 12, 2023

Stream in Maryon Wilson Park: Maryon Wilson Park

London, Greenwich, United Kingdom

Waterbody Type:
Stream
Last observed: August 10, 2025
Monitored since: April 25, 2024

River: Ptarmigan Bridge

Fort Mcmurray, Alberta, Canada

Waterbody Type:
River
Last observed: August 9, 2025
Monitored since: April 21, 2025

Mississippi Lake: Ikwe Pt

Ontario, Canada

Waterbody Type:
Unknown
Last observed: August 9, 2025
Monitored since: August 16, 2022

Root River: Root River off Hwy 17 N (near Teen Challenge)

Ontario, Canada

Waterbody Type:
River
Last observed: August 8, 2025
Monitored since: March 10, 2024