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

Mississippi Lake: Montgomery Shore/First Lake

Ontario, Canada

Waterbody Type:
Lake
Last observed: September 13, 2025
Monitored since: July 18, 2019
61 Observations
0 Issues

Mississippi Lake: Ikwe Pt

Ontario, Canada

Waterbody Type:
Unknown
Last observed: September 13, 2025
Monitored since: August 16, 2022
37 Observations
0 Issues

Moore's Brook: Outlet

London, England, United Kingdom

Waterbody Type:
Stream
Last observed: September 13, 2025
Monitored since: March 8, 2025
9 Observations
0 Issues

Moore's Brooķ: North Inlet

London, England, United Kingdom

Waterbody Type:
Pond
Last observed: September 13, 2025
Monitored since: March 8, 2025
7 Observations
0 Issues

Moore's Brook: South Inlet

London, England, United Kingdom

Waterbody Type:
Stream
Last observed: September 13, 2025
Monitored since: March 8, 2025
6 Observations
0 Issues

River Wey: Broadford Road Bridge

Guildford, England, United Kingdom

Waterbody Type:
River
Last observed: September 11, 2025
Monitored since: July 7, 2025
8 Observations
0 Issues

Ottawa River: Ottawa River

Chute à Blondeau, Ontario, Canada

Waterbody Type:
River
Last observed: September 11, 2025
Monitored since: April 13, 2019
63 Observations
0 Issues

Hogsmill: Berrylands Bridge

London, Kingston upon Thames, United Kingdom

Waterbody Type:
River
Last observed: September 11, 2025
Monitored since: June 20, 2024
12 Observations
0 Issues

St Lawrence River: School Dock

Cornwall, Ontario, Canada

Waterbody Type:
River
Last observed: September 10, 2025
Monitored since: September 10, 2025
1 Observations
0 Issues

Dollis Brook: Riverside Park (Upstream)

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: September 9, 2025
Monitored since: May 20, 2023
23 Observations
0 Issues

Dollis Brook : Outfall at RMI Site

London, England, United Kingdom

Waterbody Type:
River
Last observed: September 9, 2025
Monitored since: June 15, 2025
4 Observations
0 Issues

Folly Brook: Folly pre confluence

London, England, United Kingdom

Waterbody Type:
River
Last observed: September 9, 2025
Monitored since: February 5, 2025
8 Observations
0 Issues

Dollis Brook: Riverside Park (Downstream)

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: September 9, 2025
Monitored since: May 20, 2023
23 Observations
0 Issues

Dollis Brook : Brook Farm Open Space

London, Barnet, United Kingdom

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

Mississippi Lake: Black Bass Bay

Ontario, Canada

Waterbody Type:
Lake
Last observed: September 8, 2025
Monitored since: July 29, 2024
15 Observations
0 Issues

Dollis Brook: Quinta Open Space

London, Barnet, United Kingdom

Waterbody Type:
Stream
Last observed: September 8, 2025
Monitored since: November 7, 2024
9 Observations
0 Issues

Hogsmill: S2

London, Kingston upon Thames, United Kingdom

Waterbody Type:
Stream
Last observed: September 8, 2025
Monitored since: April 1, 2025
4 Observations
0 Issues

Lake Cane: KC's Dock

Orlando, Florida, United States

Waterbody Type:
Lake
Last observed: September 8, 2025
Monitored since: October 24, 2021
146 Observations
0 Issues

River Brent: Brent Cross

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: September 8, 2025
Monitored since: February 18, 2025
9 Observations
0 Issues

Dollis Brook : Whetstone Stray

London, Barnet, United Kingdom

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

Bowker Creek: Browning Park

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: September 7, 2025
Monitored since: February 16, 2024
90 Observations
0 Issues