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

Schoenberger Creek: Schoenberger Creek at West Belleville Bikeway

Belleville, Illinois, United States

Waterbody Type:
Creek
Last observed: April 1, 2025
Monitored since: October 23, 2023
14 Observations
0 Issues

Hogsmill: Saipem S2- Middle Mill

London, Kingston upon Thames, United Kingdom

Waterbody Type:
River
Last observed: April 1, 2025
Monitored since: April 1, 2025
1 Observations
0 Issues

Lake Oakton : Oakton College

Des Plaines, Illinois, United States

Waterbody Type:
Pond
Last observed: March 31, 2025
Monitored since: January 29, 2025
3 Observations
0 Issues

Big Hollow Creek: Big Hollow Creek in Iris Park

Peoria, Illinois, United States

Waterbody Type:
Creek
Last observed: March 31, 2025
Monitored since: December 23, 2023
9 Observations
0 Issues

River Bourne: Fairoaks Airport

Woking, Surrey, United Kingdom

Waterbody Type:
River
Last observed: March 31, 2025
Monitored since: March 31, 2025
1 Observations
0 Issues

Kickapoo Creek: Kickapoo Creek at Vicary Bottom Park

Peoria, Illinois, United States

Waterbody Type:
Stream
Last observed: March 31, 2025
Monitored since: December 23, 2023
11 Observations
0 Issues

Fox River: Dayton Bluffs Preserve

Ottawa, Illinois, United States

Waterbody Type:
River
Last observed: March 31, 2025
Monitored since: December 7, 2024
4 Observations
0 Issues

Ditch running into River Bourne: Ditch at Fairoaks Airport

Woking, Surrey, United Kingdom

Waterbody Type:
River
Last observed: March 31, 2025
Monitored since: March 31, 2025
1 Observations
0 Issues

River Swilgate: Tewkesbury Nature Reserve: Southern Foot Bridge

Cheltenham, Gloucestershire, United Kingdom

Waterbody Type:
River
Last observed: March 31, 2025
Monitored since: November 2, 2022
5 Observations
0 Issues

River Wey: Garden at 42 Sturt Road

Haslemere, West Sussex, United Kingdom

Waterbody Type:
River
Last observed: March 31, 2025
Monitored since: September 24, 2023
6 Observations
1 Issues

River Way: River Way

Woking, Surrey, United Kingdom

Waterbody Type:
River
Last observed: March 31, 2025
Monitored since: March 31, 2025
1 Observations
0 Issues

Dipping Pond: South Dipping Pond

Cheltenham, Gloucestershire, United Kingdom

Waterbody Type:
Pond
Last observed: March 30, 2025
Monitored since: March 30, 2025
1 Observations
0 Issues

River Wey: Wey Springs, Weydon Road

Haslemere, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: March 30, 2025
Monitored since: June 25, 2023
10 Observations
0 Issues

River: Coulée à Biron

Les Cèdres, Quebec, Canada

Waterbody Type:
River
Last observed: March 30, 2025
Monitored since: March 30, 2025
1 Observations
0 Issues

WEY: Kings Road trib at Springhead, Camelsdale

Haslemere, West Sussex, United Kingdom

Waterbody Type:
River
Last observed: March 30, 2025
Monitored since: March 30, 2025
1 Observations
0 Issues

Woodland Rd Creek: Woodland Rd Creek

Saint Charles, Illinois, United States

Waterbody Type:
Unknown
Last observed: March 30, 2025
Monitored since: February 28, 2025
2 Observations
0 Issues

Bourne Stream lower: Bourne before joining Wey

Farnham, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: March 29, 2025
Monitored since: March 27, 2023
4 Observations
0 Issues

Spring Creek: Spring Creek, Maple Ave. FRG

Fox River Grove, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: November 27, 2024
5 Observations
0 Issues

West Ridge Nature Park Pond- North: West Ridge Nature Park Pond- North

Chicago, Illinois, United States

Waterbody Type:
Pond
Last observed: March 28, 2025
Monitored since: December 30, 2024
4 Observations
0 Issues

Section of Black Creek: Bridge over Black Creek on Old Milford Rd

Ontario, Canada

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: March 30, 2019
31 Observations
0 Issues

Woods Creek at Brookside Pedestrian Bridge: Woods Creek at Brookside Pedestrian Bridge

Algonquin, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: December 20, 2024
11 Observations
0 Issues