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

Salt Creek: Salt Creek S Elmhurst canoe launch

Elmhurst, Illinois, United States

Waterbody Type:
Creek
Last observed: May 26, 2025
Monitored since: November 15, 2024
7 Observations
0 Issues

Saint Joseph Creek: Saint Joseph Creek

Lisle, Illinois, United States

Waterbody Type:
Creek
Last observed: May 26, 2025
Monitored since: December 2, 2023
15 Observations
0 Issues

Stream behind QMS: Wetland water run off behind QMS

New Brunswick, Canada

Waterbody Type:
Unknown
Last observed: May 26, 2025
Monitored since: May 26, 2023
2 Observations
0 Issues

Lake Erie: Colchester Harbour and Beach

Harrow, Ontario, Canada

Waterbody Type:
Lake
Last observed: May 25, 2025
Monitored since: May 25, 2025
1 Observations
0 Issues

Red Horse Lake: Right side Long Point

Ontario, Canada

Waterbody Type:
Bay
Last observed: May 25, 2025
Monitored since: May 20, 2024
3 Observations
0 Issues

Stream: MA102

Markham, Ontario, Canada

Waterbody Type:
Stream
Last observed: May 25, 2025
Monitored since: October 7, 2024
5 Observations
0 Issues

Lake Erie: Seacliff Beach

Leamington, Ontario, Canada

Waterbody Type:
Lake
Last observed: May 25, 2025
Monitored since: May 30, 2021
7 Observations
0 Issues

DuPage River : DuPage River at Riverwalk South Covered Bridge

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: May 25, 2025
Monitored since: December 14, 2023
13 Observations
0 Issues

Red Horse Lake: Left side Lost Point

Ontario, Canada

Waterbody Type:
Bay
Last observed: May 25, 2025
Monitored since: May 20, 2024
3 Observations
0 Issues

Beaverdams pond: Beaverdams Road Parkette

Niagara Falls, Ontario, Canada

Waterbody Type:
Pond
Last observed: May 25, 2025
Monitored since: May 25, 2025
1 Observations
0 Issues

Chicago River: Chicago River North Branch Goose Island

Chicago, Illinois, United States

Waterbody Type:
River
Last observed: May 25, 2025
Monitored since: December 17, 2023
12 Observations
0 Issues

Cranleigh Waters: Cranleigh Waters Stream

Cranleigh, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: May 25, 2025
Monitored since: April 14, 2025
3 Observations
3 Issues

Beaver Creek: Beaver Creek at College Road

Niagara Falls, Ontario, Canada

Waterbody Type:
Creek
Last observed: May 25, 2025
Monitored since: December 29, 2024
8 Observations
0 Issues

Black Creek: Black Creek bridge at College Road (Upstream)

Ontario, Canada

Waterbody Type:
Creek
Last observed: May 25, 2025
Monitored since: October 29, 2024
11 Observations
0 Issues

East Branch Poplar Creek: East Branch Poplar Creek

Streamwood, Illinois, United States

Waterbody Type:
Unknown
Last observed: May 25, 2025
Monitored since: December 20, 2023
13 Observations
0 Issues

Redhill Creek: Lower Redhill

Stoney Creek, Ontario, Canada

Waterbody Type:
Creek
Last observed: May 24, 2025
Monitored since: October 9, 2020
23 Observations
0 Issues

Redhill Creek: Upper Albion Falls

Hamilton, Ontario, Canada

Waterbody Type:
Creek
Last observed: May 24, 2025
Monitored since: October 9, 2020
42 Observations
0 Issues

Round lake: Off shore

Saskatchewan, Canada

Waterbody Type:
Lake
Last observed: May 24, 2025
Monitored since: May 3, 2023
6 Observations
0 Issues

Bliss Woods -Blackberry Creek: Bliss Woods -Blackberry Creek

Sugar Grove, Illinois, United States

Waterbody Type:
Creek
Last observed: May 24, 2025
Monitored since: December 28, 2023
13 Observations
0 Issues

Chedoke Creek: Princess Falls

Hamilton, Ontario, Canada

Waterbody Type:
Creek
Last observed: May 24, 2025
Monitored since: October 16, 2020
29 Observations
0 Issues

Bourne ( South ) At Mimbridge, Chobham: Addlestone Bourne (West End to Hale/Mill Bourne confluence at Mimbridge)

Mimbridge, Surrey, United Kingdom

Waterbody Type:
River
Last observed: May 24, 2025
Monitored since: February 23, 2025
4 Observations
0 Issues