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?

7,888 locations

+69 new sample locations added in the past 30 days

Lea (Old River Lea): Friends Bridge

London, Hackney, United Kingdom

Waterbody Type:
River
Last observed: April 2, 2025
Monitored since: July 31, 2021
110 Observations
0 Issues

Old Lea: Flood Relief Channel outflow

London, Waltham Forest, United Kingdom

Waterbody Type:
Unknown
Last observed: April 2, 2025
Monitored since: August 10, 2024
8 Observations
0 Issues

West Humber River: Downstream of the bridge

Etobicoke, Ontario, Canada

Waterbody Type:
River
Last observed: April 2, 2025
Monitored since: August 29, 2024
9 Observations
0 Issues

Basingstoke Canal: Chobham Road underpass

Woking, Surrey, United Kingdom

Waterbody Type:
Canal
Last observed: April 2, 2025
Monitored since: August 3, 2023
14 Observations
0 Issues

Cranleigh Waters: Sewage / waste water plant outlet

Cranleigh, Surrey, United Kingdom

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

Hogsmill: Tolworth Brook

London, Kingston upon Thames, United Kingdom

Waterbody Type:
River
Last observed: April 2, 2025
Monitored since: April 2, 2025
1 Observations
0 Issues

Schoenberger Creek: Schoenberger Creek at West Belleville Bikeway

Belleville, Illinois, United States

Waterbody Type:
Creek
Last observed: April 1, 2025
Monitored since: October 23, 2023
14 Observations
0 Issues

Prairie DuPont Tributary: Prairie DuPont Creek @ Zingg Bridge

Millstadt, Illinois, United States

Waterbody Type:
Creek
Last observed: April 1, 2025
Monitored since: November 7, 2022
56 Observations
0 Issues

Hickman's Creek : Hickman's Creek @ Zingg & Seager Rd.

Millstadt, Illinois, United States

Waterbody Type:
Creek
Last observed: April 1, 2025
Monitored since: November 2, 2024
8 Observations
0 Issues

River Wey : River Wey, Upstream of Bowers Lock

Burpham, Surrey, United Kingdom

Waterbody Type:
River
Last observed: April 1, 2025
Monitored since: March 19, 2023
25 Observations
0 Issues

Cobblers Brook: Cobblers Brook at Vachery

Cranleigh, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: April 1, 2025
Monitored since: November 27, 2023
7 Observations
0 Issues

River Wey: Island Training location, Riverside

Guildford, Surrey, United Kingdom

Waterbody Type:
Unknown
Last observed: April 1, 2025
Monitored since: May 10, 2022
33 Observations
0 Issues

River Wey: Wey Navigation

Guildford, Surrey, United Kingdom

Waterbody Type:
River
Last observed: April 1, 2025
Monitored since: May 10, 2022
33 Observations
0 Issues

Hogsmill: S2

London, Kingston upon Thames, United Kingdom

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

Avon: Jetty

Warwick, Warwickshire, United Kingdom

Waterbody Type:
River
Last observed: April 1, 2025
Monitored since: October 11, 2024
7 Observations
1 Issues

Kyd Brook: Kyd Brook S.W.O upstream

London, Bromley, United Kingdom

Waterbody Type:
Stream
Last observed: April 1, 2025
Monitored since: April 19, 2023
44 Observations
0 Issues

Kyd Brook: Kyd Brook S.W.O downstream

London, Bromley, United Kingdom

Waterbody Type:
Unknown
Last observed: April 1, 2025
Monitored since: April 19, 2023
44 Observations
1 Issues

Kyd Brook East : East Kyd Brook

London, Bromley, United Kingdom

Waterbody Type:
Stream
Last observed: April 1, 2025
Monitored since: April 19, 2023
44 Observations
0 Issues

Kyd Brook: Kyd Brook C.S.O

London, Bromley, United Kingdom

Waterbody Type:
Stream
Last observed: April 1, 2025
Monitored since: April 19, 2023
43 Observations
0 Issues

Point Abino Marsh: Point Abino Marsh

Ontario, Canada

Waterbody Type:
Wetland
Last observed: March 31, 2025
Monitored since: December 30, 2024
5 Observations
0 Issues

Lake Oakton : Oakton College

Des Plaines, Illinois, United States

Waterbody Type:
Pond
Last observed: March 31, 2025
Monitored since: January 29, 2025
3 Observations
0 Issues