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?

8,225 locations

+39 new sample locations added in the past 30 days

West Lake: Public Boat Launch at Wellington Harbour on West Lake

Wellington, Ontario, Canada

Waterbody Type:
Bay
Last observed: August 13, 2025
Monitored since: April 10, 2019
18 Observations
0 Issues

Upper Rideau Lake: Westport Harbour

Westport, Ontario, Canada

Waterbody Type:
Lake
Last observed: August 12, 2025
Monitored since: August 12, 2025
1 Observations
0 Issues

Big Rideau Lake: Westport Harbour

Westport, Ontario, Canada

Waterbody Type:
Unknown
Last observed: August 12, 2025
0 Observations
0 Issues

Dollis Brook : Brook Farm Open Space

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 12, 2025
Monitored since: November 7, 2024
8 Observations
0 Issues

Rivière Richelieu: Fort Chambly

Chambly, Quebec, Canada

Waterbody Type:
River
Last observed: August 12, 2025
Monitored since: August 3, 2022
23 Observations
0 Issues

Pond: Chinbrook wetlands outlet pond

London, Bromley, United Kingdom

Waterbody Type:
Wetland
Last observed: August 12, 2025
Monitored since: October 27, 2024
6 Observations
0 Issues

Pond: Chinbrook wetlands inlet pond

London, Bromley, United Kingdom

Waterbody Type:
Wetland
Last observed: August 12, 2025
Monitored since: October 27, 2024
6 Observations
0 Issues

River Brent: Brent Cross

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 12, 2025
Monitored since: February 18, 2025
7 Observations
0 Issues

Dollis Brook : Whetstone Stray

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 12, 2025
Monitored since: November 7, 2024
9 Observations
0 Issues

Red Rock Lake: Red Rock Lake

Iron Bridge, Ontario, Canada

Waterbody Type:
Lake
Last observed: August 11, 2025
Monitored since: June 10, 2025
5 Observations
0 Issues

East Wickham: Woodlands farm, Oxleas and Bellegrove road stream

London, Bexley, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: March 9, 2025
6 Observations
0 Issues

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
6 Observations
0 Issues

East Wickham: Woodlands farm, shooters hill stream

London, Greenwich, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: March 9, 2025
6 Observations
0 Issues

Oxleas Meadow Site 2 : Oxleas Meadow 2

London, Greenwich, United Kingdom

Waterbody Type:
Creek
Last observed: August 11, 2025
Monitored since: April 25, 2024
8 Observations
0 Issues

Georgian Bay: Dyers Bay

Ontario, Canada

Waterbody Type:
Bay
Last observed: August 11, 2025
Monitored since: May 23, 2022
15 Observations
0 Issues

Lac Lockhart: Fosse LK1

Val-des-Monts, Quebec, Canada

Waterbody Type:
Lake
Last observed: August 11, 2025
Monitored since: June 9, 2021
32 Observations
0 Issues

Nottawaga Bay: Cawaja Beach

Tiny, Ontario, Canada

Waterbody Type:
Bay
Last observed: August 11, 2025
Monitored since: July 31, 2025
3 Observations
0 Issues

Dollis Brook: Riverside Park (Upstream)

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: May 20, 2023
22 Observations
0 Issues

Dollis Brook : Outfall at RMI Site

London, England, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: June 15, 2025
3 Observations
0 Issues

Dollis Brook: Riverside Park (Downstream)

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: May 20, 2023
22 Observations
0 Issues

Folly Brook: Folly pre confluence

London, England, United Kingdom

Waterbody Type:
River
Last observed: August 11, 2025
Monitored since: February 5, 2025
7 Observations
0 Issues