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

Lac Blouin: Lac Blouin

Val D'Or, Quebec, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 15, 2020
21 Observations
0 Issues

River: Rouge River

Markham, Ontario, Canada

Waterbody Type:
River
Last observed: July 26, 2025
Monitored since: October 7, 2024
7 Observations
0 Issues

creek: MA101

Markham, Ontario, Canada

Waterbody Type:
Creek
Last observed: July 26, 2025
Monitored since: September 7, 2024
8 Observations
0 Issues

St Lawrence River: Tree Haven Canal

Ontario, Canada

Waterbody Type:
River
Last observed: July 26, 2025
Monitored since: June 25, 2022
16 Observations
0 Issues

St Lawrence: Lakeview ... bay

Ontario, Canada

Waterbody Type:
River
Last observed: July 26, 2025
Monitored since: May 28, 2023
17 Observations
0 Issues

Raisin River: Raisin River Marina

Ontario, Canada

Waterbody Type:
River
Last observed: July 26, 2025
Monitored since: March 30, 2024
9 Observations
0 Issues

Round lake: Dock testing

Saskatchewan, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: May 28, 2022
18 Observations
0 Issues

Lievre River: Lievre River Buckingham

Gatineau, Quebec, Canada

Waterbody Type:
Unknown
Last observed: July 26, 2025
Monitored since: July 26, 2025
1 Observations
0 Issues

Lac Valérie: Lac Valérie

Quebec, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 22, 2025
3 Observations
0 Issues

Lac Réna: Lac Réna

Saint Félix D'Otis, Quebec, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 28, 2025
2 Observations
0 Issues

Cranleigh Waters: Cranleigh Waters Stream

Cranleigh, England, United Kingdom

Waterbody Type:
Stream
Last observed: July 26, 2025
Monitored since: June 30, 2025
2 Observations
1 Issues

River Bourne: Cabrera Riverside Walk

Virginia Water, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: July 26, 2025
Monitored since: December 29, 2024
8 Observations
0 Issues

Tame: Elford

Tamworth, England, United Kingdom

Waterbody Type:
Unknown
Last observed: July 26, 2025
Monitored since: July 26, 2025
1 Observations
0 Issues

Lac Otis: Lac Otis

Saint Félix D'Otis, Quebec, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 28, 2025
2 Observations
0 Issues

Twenty Mile Creek: Smithville Nature Path

Smithville, Ontario, Canada

Waterbody Type:
Creek
Last observed: July 26, 2025
Monitored since: May 24, 2025
2 Observations
0 Issues

River Wey: Lower neathamMill

East Hampshire District, Hampshire, United Kingdom

Waterbody Type:
Unknown
Last observed: July 26, 2025
Monitored since: March 30, 2025
2 Observations
0 Issues

Big Rideau Lake: Big Rideau Lake at Hudsons Bay

Ontario, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 9, 2005
29 Observations
1 Issues

Lac à la Balle: Lac à la Balle

Saint Félix D'Otis, Quebec, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 16, 2025
4 Observations
0 Issues

Big Rideau Lake: Hudson Bay

Ontario, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: May 27, 2018
26 Observations
0 Issues

Big Rideau Lake: Rideau Mac

Ontario, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 9, 2005
30 Observations
0 Issues

River Wey: Wey Navigation

Guildford, Surrey, United Kingdom

Waterbody Type:
River
Last observed: July 26, 2025
Monitored since: May 10, 2022
37 Observations
0 Issues