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

Avon: Alveston Weir

Hampton Lucy, Warwickshire, United Kingdom

Waterbody Type:
River
Last observed: May 1, 2025
Monitored since: October 2, 2024

Pymmes Brook: Downstream of Jack’s Lake

London, Barnet, United Kingdom

Waterbody Type:
River
Last observed: May 1, 2025
Monitored since: February 26, 2025

Sandy Creek: Sandy Creek in Elgin Township Wetland preserve

Elgin, Illinois, United States

Waterbody Type:
Creek
Last observed: April 30, 2025
Monitored since: December 19, 2023

Lily Cache Creek: Lily Cache Creek

Plainfield, Illinois, United States

Waterbody Type:
Creek
Last observed: April 30, 2025
Monitored since: November 4, 2021

Lily Cache Creek: Lily Cache Creek

Plainfield, Illinois, United States

Waterbody Type:
Creek
Last observed: April 30, 2025
Monitored since: November 4, 2021

Winfield Creek: Winfield Creek at Emerson School

Wheaton, Illinois, United States

Waterbody Type:
Creek
Last observed: April 30, 2025
Monitored since: December 6, 2023

Winfield Creek,: West bridge, Winfield Creek, Northside Park

Wheaton, Illinois, United States

Waterbody Type:
Creek
Last observed: April 30, 2025
Monitored since: November 21, 2024

West DuPage River: Pioneer Park Canoe launch

Naperville, Illinois, United States

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

Blackberry Creek at Barnes Forest Preserve: Blackberry Creek at Barnes Forest Preserve

Aurora, Illinois, United States

Waterbody Type:
Creek
Last observed: April 29, 2025
Monitored since: December 28, 2023

Indian Creek: Molitor Bridge at Indian Creek

Aurora, Illinois, United States

Waterbody Type:
Creek
Last observed: April 29, 2025
Monitored since: December 31, 2024

St Lawrence River: St Lawrence River

Ontario, Canada

Waterbody Type:
Unknown
Last observed: April 29, 2025
Monitored since: April 29, 2025

West branch DuPage river: McDowell Grove forest preserve

Naperville, Illinois, United States

Waterbody Type:
River
Last observed: April 29, 2025
Monitored since: December 17, 2023

Dagenham Brook : Dagenham Brook U/S

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: April 29, 2025
Monitored since: September 1, 2024

Dagenham Brook : Dagenham Brook D/S

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: April 29, 2025
Monitored since: September 1, 2024

Dagenham Brook: Downstream of Leyton Jubilee Park's double outfall (what3words: ///curving.cups.brings)

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: April 29, 2025
Monitored since: April 6, 2024

Dagenham Brook: Upstream of Leyton Jubilee Park's double outfall (what3words: ///curving.cups.brings)

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: April 29, 2025
Monitored since: April 6, 2024

Pond: DuPage River Park - Small Pond - Site 2

Naperville, Illinois, United States

Waterbody Type:
Pond
Last observed: April 29, 2025
Monitored since: November 30, 2024

Charlie Lake: Charlie Lake - Site#1 Bruce's Place/Lake Point

British Columbia, Canada

Waterbody Type:
Lake
Last observed: April 29, 2025
Monitored since: May 27, 2023

Raisin : Finney Bridge

Ontario, Canada

Waterbody Type:
River
Last observed: April 28, 2025
Monitored since: May 28, 2023

Brook: Mine North Brook (WC3N)

New Brunswick, Canada

Waterbody Type:
Unknown
Last observed: April 28, 2025
Monitored since: April 24, 2025

Brook: Mine East Brook (WC3E)

New Brunswick, Canada

Waterbody Type:
Unknown
Last observed: April 28, 2025
Monitored since: April 23, 2025