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

Spring Creek: Spring Creek

Joliet, Illinois, United States

Waterbody Type:
Creek
Last observed: May 31, 2025
Monitored since: November 11, 2021

Big Rock Creek: Big Rock Creek at Emmons Woods

Plano, Illinois, United States

Waterbody Type:
Stream
Last observed: May 31, 2025
Monitored since: December 31, 2024

River Wey: River Wey Old Woking

Woking, Surrey, United Kingdom

Waterbody Type:
River
Last observed: May 31, 2025
Monitored since: December 29, 2024

Lake Patterson: Oakhurst Forest Preserve South Shore Dock

Aurora, Illinois, United States

Waterbody Type:
Lake
Last observed: May 31, 2025
Monitored since: November 25, 2023

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

Batavia, Illinois, United States

Waterbody Type:
Stream
Last observed: May 31, 2025
Monitored since: November 28, 2023

Rocky Fork Tributary: Creek at Merry Meadows

Godfrey, Illinois, United States

Waterbody Type:
Creek
Last observed: May 31, 2025
Monitored since: December 31, 2023

River Wey: Shottermill

Haslemere, Surrey, United Kingdom

Waterbody Type:
River
Last observed: May 31, 2025
Monitored since: August 1, 2022

Blackberry Creek: Blackberry Creek Forest Preserve

Montgomery, Illinois, United States

Waterbody Type:
Creek
Last observed: May 30, 2025
Monitored since: November 28, 2024

DuPage River: DuPage River at Knoch Knolls Canoe/Kayak Launch

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: December 23, 2024

Big Rock Creek: Big Rock Forest Preserve

Big Rock, Illinois, United States

Waterbody Type:
Creek
Last observed: May 30, 2025
Monitored since: November 26, 2023

Tributary to Pembina River: French Creek

Fawcett, Alberta, Canada

Waterbody Type:
Creek
Last observed: May 30, 2025
Monitored since: May 30, 2025

Island Lake: Island Lake Boat Launch

Orangeville, Ontario, Canada

Waterbody Type:
Wetland
Last observed: May 30, 2025
Monitored since: October 3, 2023

Tawatinaw River - Colinton, Alberta: East of northern foot bridge

Alberta, Canada

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: July 31, 2023

Creek under Fairmount Ave: Creek under Fairmount Ave, east side of bridge

Downers Grove, Illinois, United States

Waterbody Type:
Creek
Last observed: May 30, 2025
Monitored since: November 19, 2024

East Branch DuPage River: Lisle Community Park Boat Launch near Short St on East Branch DuPage River

Lisle, Illinois, United States

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: December 9, 2024

Ottawa River: Petrie Island Causeway

Orléans, Ontario, Canada

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: May 30, 2025

Stream: Albion Fall

Stoney Creek, Ontario, Canada

Waterbody Type:
Stream
Last observed: May 30, 2025
Monitored since: May 21, 2023

Cataraqui River : 6.2

Kingston, Ontario, Canada

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: July 15, 2024

pond: Timber Trails Park pond

Saint Charles, Illinois, United States

Waterbody Type:
Pond
Last observed: May 30, 2025
Monitored since: November 25, 2023

Old Lea: Lea Bridge Weir (downstream)

London, Hackney, United Kingdom

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: August 10, 2024

Little Calumet River: Little Calumet River - Boat Launch at FPDCC Kickapoo Woods

Harvey, Illinois, United States

Waterbody Type:
River
Last observed: May 30, 2025
Monitored since: November 26, 2024