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

Qwalimak- Birkenhead River: Qwalimak- Birkenhead River

Mount Currie, British Columbia, Canada

Waterbody Type:
River
Last observed: May 22, 2025
Monitored since: May 22, 2025

Qwalimak- Birkenhead River: Qwalimak

Mount Currie, British Columbia, Canada

Waterbody Type:
River
Last observed: May 22, 2025
Monitored since: May 22, 2025

Fox River: Jon Duerr Forest Preserve Fox River

South Elgin, Illinois, United States

Waterbody Type:
River
Last observed: May 22, 2025
Monitored since: November 11, 2023

Kishwaukee River: South Branch Kish

Union, Illinois, United States

Waterbody Type:
River
Last observed: May 22, 2025
Monitored since: November 29, 2024

Cress Creek: Cress Creek

Naperville, Illinois, United States

Waterbody Type:
Creek
Last observed: May 22, 2025
Monitored since: November 11, 2023

West Branch DuPage River : West Branch DuPage River at Hillside

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: May 22, 2025
Monitored since: November 11, 2023

Unnamed Creek : Arrowhead Park

Naperville, Illinois, United States

Waterbody Type:
Creek
Last observed: May 22, 2025
Monitored since: November 13, 2024

Spring Brook Creek: Harry J. Wolf

Warrenville, Illinois, United States

Waterbody Type:
Creek
Last observed: May 22, 2025
Monitored since: November 12, 2024

Winding Creek: Winding Creek

Bartlett, Illinois, United States

Waterbody Type:
Creek
Last observed: May 21, 2025
Monitored since: December 10, 2023

Qwalimak-Birkenhead River : Birkenhead River Confluence

Pemberton, British Columbia, Canada

Waterbody Type:
River
Last observed: May 21, 2025
Monitored since: May 21, 2025

Wildcat Slough: Sangamon River Forest Preserve

Mahomet, Illinois, United States

Waterbody Type:
Stream
Last observed: May 21, 2025
Monitored since: November 6, 2022

Lake Charles at Beach Inlet: Lake Charles at Beach Inlet

Westmont, Illinois, United States

Waterbody Type:
Pond
Last observed: May 21, 2025
Monitored since: November 30, 2024

Sangamon River: Sangamon River Forest Preserve site

Fisher, Illinois, United States

Waterbody Type:
River
Last observed: May 21, 2025
Monitored since: November 7, 2021

Lillooet Lake: Strawberry Point

Pemberton, British Columbia, Canada

Waterbody Type:
Lake
Last observed: May 21, 2025
Monitored since: May 21, 2025

West branch of DuPage river: West branch of DuPage river at Beecher Rd, Winfield

Winfield, Illinois, United States

Waterbody Type:
River
Last observed: May 21, 2025
Monitored since: November 15, 2023

Lake George: Ojibway Park

Ontario, Canada

Waterbody Type:
Lake
Last observed: May 21, 2025
Monitored since: May 31, 2024

Garden River: Big Bend

Ontario, Canada

Waterbody Type:
River
Last observed: May 21, 2025
Monitored since: May 31, 2024

Garden River: Dump Pond

Ontario, Canada

Waterbody Type:
Unknown
Last observed: May 21, 2025
Monitored since: May 31, 2024

Driving Creek: Driving Creek Bridge

Ontario, Canada

Waterbody Type:
Creek
Last observed: May 21, 2025
Monitored since: May 31, 2024

Garden River: Bailey Bridge

Ontario, Canada

Waterbody Type:
River
Last observed: May 21, 2025
Monitored since: May 31, 2024

Sangamon River: Lake of the Woods Forest Preserve

Mahomet, Illinois, United States

Waterbody Type:
River
Last observed: May 20, 2025
Monitored since: November 7, 2021