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

Jones Creek: A

Mallorytown, Ontario, Canada

Waterbody Type:
Creek
Last observed: June 24, 2025
Monitored since: June 24, 2025
1 Observations
0 Issues

HQ: Test

Bayfield, Wisconsin, United States

Waterbody Type:
Creek
Last observed: June 24, 2025
Monitored since: June 24, 2025
1 Observations
0 Issues

Turkey Brook: Rectory Farm

Enfield, England, United Kingdom

Waterbody Type:
Stream
Last observed: June 24, 2025
Monitored since: February 1, 2025
6 Observations
0 Issues

Gledhow Lake: E-coli Testing Location 1 (UoL)

Leeds, Leeds, United Kingdom

Waterbody Type:
Lake
Last observed: June 23, 2025
Monitored since: September 25, 2023
12 Observations
0 Issues

Lake Killarney to Silver Lake Creek (Cary, IL, 60013): Lake Killarney to Silver Lake Creek (Cary, IL, 60013)

Cary, Illinois, United States

Waterbody Type:
Creek
Last observed: June 22, 2025
Monitored since: November 20, 2024
8 Observations
0 Issues

Lake Killarney outlet dam (Cary, IL, 60013): Lake Killarney outlet dam (Cary, IL, 60013)

Cary, Illinois, United States

Waterbody Type:
Lake
Last observed: June 22, 2025
Monitored since: November 20, 2024
8 Observations
0 Issues

Tannery Creek: Aurora High School (AHS)

Aurora, Ontario, Canada

Waterbody Type:
Creek
Last observed: June 22, 2025
Monitored since: June 22, 2025
1 Observations
0 Issues

Lake Simcoe: East Holland River at Aurora Community Arboretum (AFLC)

Aurora, Ontario, Canada

Waterbody Type:
Creek
Last observed: June 22, 2025
Monitored since: September 29, 2024
6 Observations
0 Issues

Big Forks Creek: Big Forks Creek at Gents Road

Ontario, Canada

Waterbody Type:
Creek
Last observed: June 20, 2025
Monitored since: January 26, 2025
7 Observations
0 Issues

Grindstone Creek: Grindstone Marsh

Burlington, Ontario, Canada

Waterbody Type:
Creek
Last observed: June 20, 2025
Monitored since: March 29, 2021
38 Observations
0 Issues

Big Forks Creek: Big Forks Creek at Victoria Ave

Ontario, Canada

Waterbody Type:
Creek
Last observed: June 20, 2025
Monitored since: January 26, 2025
7 Observations
0 Issues

Welland River Branch: Welland River Branch

Ontario, Canada

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

Lower Trout pond : Trout Pond Outlet

Woodstock, Illinois, United States

Waterbody Type:
Unknown
Last observed: June 20, 2025
Monitored since: November 26, 2024
9 Observations
0 Issues

Powers Creek Headwaters: Powers Creek

Woodstock, Illinois, United States

Waterbody Type:
Creek
Last observed: June 20, 2025
Monitored since: November 26, 2024
9 Observations
0 Issues

The Ching: Downstream of Connaught Water

Buckhurst Hill, Essex, United Kingdom

Waterbody Type:
Stream
Last observed: June 20, 2025
Monitored since: November 23, 2023
48 Observations
0 Issues

The Ching: Upstream of Connaught Water

Buckhurst Hill, Essex, United Kingdom

Waterbody Type:
Stream
Last observed: June 20, 2025
Monitored since: November 23, 2023
40 Observations
0 Issues

Grindstone Creek: Joe Sam's Leisure Park

Burlington, Ontario, Canada

Waterbody Type:
Creek
Last observed: June 19, 2025
Monitored since: October 17, 2023
6 Observations
0 Issues

St. Lawrence River: Butternut Island - south side

Summerstown, Ontario, Canada

Waterbody Type:
River
Last observed: June 19, 2025
Monitored since: June 19, 2025
1 Observations
0 Issues

Frame Lake: Frame Lake

Yellowknife, Northwest Territories, Canada

Waterbody Type:
Lake
Last observed: June 19, 2025
Monitored since: October 7, 2024
3 Observations
0 Issues

Bright Lake: Bright Lake

Iron Bridge, Ontario, Canada

Waterbody Type:
Lake
Last observed: June 19, 2025
Monitored since: June 9, 2025
2 Observations
0 Issues

St. Lawrence River: Pointe Mouillée

Bainsville, Ontario, Canada

Waterbody Type:
Bay
Last observed: June 19, 2025
Monitored since: June 19, 2025
1 Observations
0 Issues