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

River Wey: River Wey - Godalming by duck feeding platform

Godalming, Surrey, United Kingdom

Waterbody Type:
River
Last observed: December 1, 2025
Monitored since: May 28, 2022
20 Observations
0 Issues

Bowker Creek: 3.5 Oak Bay High

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: December 1, 2025
Monitored since: November 16, 2021
83 Observations
1 Issues

Bowker Creek: 1.3 Monteith

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: November 30, 2025
Monitored since: August 8, 2020
259 Observations
0 Issues

West DuPage River: Pioneer Park Canoe launch

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: November 30, 2025
Monitored since: November 29, 2024
9 Observations
0 Issues

Pond: Carville Mill Park

Vaughan, Ontario, Canada

Waterbody Type:
Pond
Last observed: November 30, 2025
Monitored since: October 27, 2024
8 Observations
0 Issues

Mill Pond: Mill Pond

Richmond Hill, Ontario, Canada

Waterbody Type:
Pond
Last observed: November 30, 2025
Monitored since: October 27, 2024
8 Observations
0 Issues

Creek: Beaver Creek

Richmond Hill, Ontario, Canada

Waterbody Type:
Creek
Last observed: November 30, 2025
Monitored since: October 27, 2024
8 Observations
0 Issues

North Branch of the Chicago River: Harms Woods/Glenview Woods

Glenview, Illinois, United States

Waterbody Type:
Unknown
Last observed: November 30, 2025
Monitored since: December 21, 2021
30 Observations
0 Issues

River Wey: DragonFly

Waverley Borough, Surrey, United Kingdom

Waterbody Type:
River
Last observed: November 30, 2025
Monitored since: February 25, 2022
36 Observations
0 Issues

River Wey: Brigadier’s Bench

Frensham, Surrey, United Kingdom

Waterbody Type:
Unknown
Last observed: November 30, 2025
Monitored since: July 31, 2022
28 Observations
0 Issues

Tillingbourne : Sammy’s snail Gunpowder Mills

Bramley, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: November 30, 2025
Monitored since: February 24, 2023
28 Observations
0 Issues

Wildcat Slough: Sangamon River Forest Preserve

Mahomet, Illinois, United States

Waterbody Type:
Stream
Last observed: November 28, 2025
Monitored since: November 6, 2022
29 Observations
0 Issues

Sangamon River: Sangamon River Forest Preserve site

Fisher, Illinois, United States

Waterbody Type:
River
Last observed: November 28, 2025
Monitored since: November 7, 2021
45 Observations
0 Issues

Sangamon River: Lake of the Woods Forest Preserve

Mahomet, Illinois, United States

Waterbody Type:
River
Last observed: November 28, 2025
Monitored since: November 7, 2021
44 Observations
0 Issues

Sangamon River: River Bend Forest Preserve site

Mahomet, Illinois, United States

Waterbody Type:
River
Last observed: November 28, 2025
Monitored since: November 7, 2021
44 Observations
0 Issues

Round Lake: Home Shore

Saskatchewan, Canada

Waterbody Type:
Lake
Last observed: November 27, 2025
Monitored since: October 27, 2024
3 Observations
0 Issues

Bowker Creek: Browning Park

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: November 23, 2025
Monitored since: February 16, 2024
94 Observations
0 Issues

Lake Run: Lake Run at Nelson Lake in Dick Young Forest Preserve

Batavia, Illinois, United States

Waterbody Type:
Stream
Last observed: November 22, 2025
Monitored since: November 28, 2023
15 Observations
0 Issues

East Branch DuPage River: Hill Ave Bridge

Lombard, Illinois, United States

Waterbody Type:
River
Last observed: November 6, 2025
Monitored since: November 17, 2023
15 Observations
0 Issues

Hogsmill: S2

London, Kingston upon Thames, United Kingdom

Waterbody Type:
Stream
Last observed: November 3, 2025
Monitored since: April 1, 2025
6 Observations
0 Issues

Rivière des Outaouais : Pointe-Fortune

Pointe Fortune, Quebec, Canada

Waterbody Type:
River
Last observed: October 29, 2025
Monitored since: June 30, 2025
4 Observations
0 Issues