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

+7 new sample locations added in the past 30 days

Beverley Brook: Richmond Park Wall

London, Wandsworth, United Kingdom

Waterbody Type:
River
Last observed: May 28, 2025
Monitored since: April 23, 2024
4 Observations
0 Issues

Box Lake: Box Lake Dock

British Columbia, Canada

Waterbody Type:
Lake
Last observed: May 28, 2025
Monitored since: August 26, 2022
23 Observations
0 Issues

Pond: Pond

Deep Bay, Newfoundland and Labrador, Canada

Waterbody Type:
Bay
Last observed: May 28, 2025
Monitored since: May 28, 2025
1 Observations
0 Issues

Fox River: Fabyan Forest Preserve

Geneva, Illinois, United States

Waterbody Type:
River
Last observed: May 28, 2025
Monitored since: January 13, 2022
35 Observations
0 Issues

West Branch of the DuPage River - Weigand Riverfront Park Canoe Launch: West Branch of the Dupage River - Weigand Riverfront Park Canoe Launch

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: May 28, 2025
Monitored since: November 27, 2024
12 Observations
0 Issues

DuPage River: West Branch DuPage River

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: May 27, 2025
Monitored since: December 3, 2023
13 Observations
0 Issues

East Branch DuPage River: East Branch DuPage River at Hidden Lake Forest Preserve

Downers Grove, Illinois, United States

Waterbody Type:
River
Last observed: May 27, 2025
Monitored since: November 26, 2023
14 Observations
0 Issues

Rivière Delisle: Rivière Delisle

Quebec, Canada

Waterbody Type:
River
Last observed: May 27, 2025
Monitored since: October 16, 2024
6 Observations
0 Issues

Wood Creek: Wood Creek County rd 2 Bridge

Ontario, Canada

Waterbody Type:
Creek
Last observed: May 27, 2025
Monitored since: September 28, 2023
2 Observations
0 Issues

Glen Crest Creek: Glen Crest Creek at Willowbrook Forest Preserve

Glen Ellyn, Illinois, United States

Waterbody Type:
Creek
Last observed: May 27, 2025
Monitored since: November 26, 2023
14 Observations
0 Issues

Fox River: Fox River-Route 14

Illinois, United States

Waterbody Type:
River
Last observed: May 27, 2025
Monitored since: December 13, 2024
7 Observations
0 Issues

Sugar Run: Sugar Run Creek

Joliet, Illinois, United States

Waterbody Type:
Creek
Last observed: May 27, 2025
Monitored since: December 12, 2023
10 Observations
0 Issues

Welland Canal: Welland Canal off of Seaway Haulage Rd

St. Catharines, Ontario, Canada

Waterbody Type:
Canal
Last observed: May 27, 2025
Monitored since: February 1, 2025
5 Observations
0 Issues

creek: Kenyon Woods Forest Preserve

South Elgin, Illinois, United States

Waterbody Type:
Creek
Last observed: May 27, 2025
Monitored since: October 31, 2023
15 Observations
0 Issues

Salt Creek: Salt Creek Park Forest Preserve

Wood Dale, Illinois, United States

Waterbody Type:
Creek
Last observed: May 27, 2025
Monitored since: November 15, 2023
31 Observations
0 Issues

Silver Creek: Bensenville at Irving

Bensenville, Illinois, United States

Waterbody Type:
Unknown
Last observed: May 27, 2025
Monitored since: February 17, 2022
13 Observations
0 Issues

Flint Creek : Flint Creek-Grassy Lake Forest Preserve Trail Bridge

Barrington, Illinois, United States

Waterbody Type:
Creek
Last observed: May 27, 2025
Monitored since: December 13, 2024
7 Observations
0 Issues

Des Plaines River : Evans Field - Des Plaines River -Trail Marker 215

River Grove, Illinois, United States

Waterbody Type:
River
Last observed: May 27, 2025
Monitored since: November 29, 2024
7 Observations
0 Issues

Lake St. Clair: Lake St. Clair

Ontario, Canada

Waterbody Type:
Lake
Last observed: May 27, 2025
Monitored since: January 29, 2025
6 Observations
0 Issues

Cootes Paradise: RBG Princess Point

Burlington, Ontario, Canada

Waterbody Type:
Wetland
Last observed: May 26, 2025
Monitored since: September 6, 2018
39 Observations
0 Issues

East Branch DuPage River: East Branch DuPage River at East Branch Forest Preserve

Glendale Heights, Illinois, United States

Waterbody Type:
River
Last observed: May 26, 2025
Monitored since: November 17, 2024
7 Observations
0 Issues