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?

8,238 locations

+12 new sample locations added in the past 30 days

Bras d'Or Lake: Ross Ferry Marine Park

Ross Ferry, Nova Scotia, Canada

Waterbody Type:
Estuary
Last observed: October 13, 2025
Monitored since: July 13, 2025
7 Observations
0 Issues

Hogsmill: Saipem S3 - Chapel Mill Road

London, Kingston upon Thames, United Kingdom

Waterbody Type:
River
Last observed: October 13, 2025
Monitored since: April 3, 2025
5 Observations
0 Issues

Red Horse Lake: Left side Lost Point

Ontario, Canada

Waterbody Type:
Bay
Last observed: October 11, 2025
Monitored since: May 20, 2024
4 Observations
0 Issues

Red Horse Lake: Right side Long Point

Ontario, Canada

Waterbody Type:
Bay
Last observed: October 11, 2025
Monitored since: May 20, 2024
4 Observations
0 Issues

Brook: St Joseph Hood Memorial Playing Fields

New Malden, England, United Kingdom

Waterbody Type:
River
Last observed: October 11, 2025
Monitored since: January 11, 2025
9 Observations
0 Issues

Lake Muskoka: Site 9

Gravenhurst, Ontario, Canada

Waterbody Type:
Bay
Last observed: October 10, 2025
Monitored since: July 18, 2025
9 Observations
0 Issues

Hogsmill: Berrylands Bridge

London, Kingston upon Thames, United Kingdom

Waterbody Type:
River
Last observed: October 9, 2025
Monitored since: June 20, 2024
13 Observations
0 Issues

Faucet: Claire’s fav water

Campbellville, Ontario, Canada

Waterbody Type:
Unknown
Last observed: October 8, 2025
Monitored since: October 8, 2025
1 Observations
0 Issues

Sink: Drinking water

Campbellville, Ontario, Canada

Waterbody Type:
Bay
Last observed: October 8, 2025
Monitored since: October 8, 2025
1 Observations
0 Issues

Water fountain: Water fountain at big gym

Milton, Ontario, Canada

Waterbody Type:
Unknown
Last observed: October 8, 2025
Monitored since: October 8, 2025
1 Observations
0 Issues

Lake Cane: KC's Dock

Orlando, Florida, United States

Waterbody Type:
Lake
Last observed: October 7, 2025
Monitored since: October 24, 2021
149 Observations
0 Issues

Lake Ontario: Gairloch Gardens

Oakville, Ontario, Canada

Waterbody Type:
Lake
Last observed: October 6, 2025
Monitored since: October 6, 2025
1 Observations
0 Issues

Georgian Bay: Dyers Bay

Ontario, Canada

Waterbody Type:
Bay
Last observed: October 6, 2025
Monitored since: May 23, 2022
16 Observations
0 Issues

Hogsmill: S2

London, Kingston upon Thames, United Kingdom

Waterbody Type:
Stream
Last observed: October 6, 2025
Monitored since: April 1, 2025
5 Observations
0 Issues

River Wey: Upper Neatham Mill

East Hampshire District, Hampshire, United Kingdom

Waterbody Type:
River
Last observed: October 6, 2025
Monitored since: October 1, 2023
21 Observations
0 Issues

Lake Erie: Near Port Dover Marina

Port Dover, Ontario, Canada

Waterbody Type:
Lake
Last observed: October 5, 2025
Monitored since: July 10, 2021
21 Observations
1 Issues

River Wey: Mayfield Road

Weybridge, Surrey, United Kingdom

Waterbody Type:
River
Last observed: October 5, 2025
Monitored since: March 27, 2025
5 Observations
0 Issues

Lac Barns, Val des Monts: Lac Barnes,

Quebec, Canada

Waterbody Type:
Lake
Last observed: October 5, 2025
Monitored since: June 30, 2024
13 Observations
0 Issues

Lac Otis: Lac Otis

Saint Félix D'Otis, Quebec, Canada

Waterbody Type:
Lake
Last observed: October 4, 2025
Monitored since: October 4, 2025
1 Observations
0 Issues

Bowker Creek: 3.5 Oak Bay High

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: October 4, 2025
Monitored since: November 16, 2021
82 Observations
1 Issues

Bowker Creek: 3.4 Duck Ponds

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: October 4, 2025
Monitored since: November 16, 2021
80 Observations
0 Issues