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

River Ching: Whitehall Outfall 5b

Buckhurst Hill, Redbridge, United Kingdom

Waterbody Type:
River
Last observed: August 15, 2025
Monitored since: March 14, 2025
22 Observations
0 Issues

River Ching: Whitehall Outfall 5a

Buckhurst Hill, Redbridge, United Kingdom

Waterbody Type:
River
Last observed: August 15, 2025
Monitored since: March 14, 2025
22 Observations
0 Issues

The Ching: 9 Gordon Ave E4

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: August 15, 2025
Monitored since: November 16, 2023
64 Observations
0 Issues

The Ching: Sainsbury's

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: August 15, 2025
Monitored since: December 15, 2023
44 Observations
0 Issues

The Ching: Wadham Ave

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: August 15, 2025
Monitored since: December 8, 2023
45 Observations
0 Issues

The Ching: Beech Hall

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: August 15, 2025
Monitored since: December 8, 2023
52 Observations
0 Issues

St. Lawrence: Summerstown

Cornwall, Ontario, Canada

Waterbody Type:
Unknown
Last observed: August 15, 2025
Monitored since: July 11, 2025
14 Observations
0 Issues

Lake Superior: Gros Cap - Lake Superior

Ontario, Canada

Waterbody Type:
Lake
Last observed: August 14, 2025
Monitored since: March 2, 2025
12 Observations
0 Issues

St Marys River: Pointe Des Chenes

Ontario, Canada

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: March 2, 2025
11 Observations
0 Issues

Lac Pajegasque: Lac Pajegasque

Beaucanton, Quebec, Canada

Waterbody Type:
Unknown
Last observed: August 14, 2025
Monitored since: June 7, 2025
6 Observations
0 Issues

Rideau River: Merrickville Fairgrounds - Rideau River

Merrickville, Ontario, Canada

Waterbody Type:
Unknown
Last observed: August 14, 2025
Monitored since: August 14, 2025
1 Observations
0 Issues

St. Lawrence River: Near Montreal Rd. Culvert outflow, outside of pit

Cornwall, Ontario, Canada

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: June 19, 2025
9 Observations
0 Issues

St. Lawrence River: Montreal Rd. Culvert outflow

Cornwall, Ontario, Canada

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: June 19, 2025
9 Observations
0 Issues

St. Lawrence River: St. Lawrence River Dock River Intitute

Cornwall, Ontario, Canada

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: June 19, 2025
9 Observations
0 Issues

St Lawrence River: Cornwall

Ontario, Canada

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: September 13, 2019
106 Observations
0 Issues

DeBoville Slough : Devon

Coquitlam, British Columbia, Canada

Waterbody Type:
Wetland
Last observed: August 14, 2025
Monitored since: November 9, 2022
34 Observations
0 Issues

Lake Huron: Archibald Dock

Ontario, Canada

Waterbody Type:
Lake
Last observed: August 14, 2025
Monitored since: May 30, 2022
21 Observations
0 Issues

Edgware Brook: Chandos Park (Downstream)

London, Harrow, United Kingdom

Waterbody Type:
Stream
Last observed: August 14, 2025
Monitored since: February 9, 2024
20 Observations
0 Issues

Edgware Brook: Chandos Park (Upstream)

London, Harrow, United Kingdom

Waterbody Type:
Stream
Last observed: August 14, 2025
Monitored since: February 9, 2024
20 Observations
0 Issues

Hogsmill: Downstream Stepping Stones

Epsom, Surrey, United Kingdom

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: June 22, 2024
11 Observations
0 Issues

Hogsmill: Green Lanes A (downstream of old green lanes stream)

Epsom, Surrey, United Kingdom

Waterbody Type:
River
Last observed: August 14, 2025
Monitored since: November 22, 2024
10 Observations
0 Issues