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?

7,912 locations

+52 new sample locations added in the past 30 days

Slade Pond: Slade Pond Inlet

London, Greenwich, United Kingdom

Waterbody Type:
Pond
Last observed: April 13, 2025
Monitored since: April 25, 2024
2 Observations
0 Issues

Curtis Creek: Curtis Creek

Quincy, Illinois, United States

Waterbody Type:
Creek
Last observed: April 13, 2025
Monitored since: December 9, 2021
53 Observations
0 Issues

Adolphus Reach on Lake Ontario: Prinyer’s Cove Park & Boat Launch

Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: September 25, 2020
31 Observations
0 Issues

Prinyer’s Cove on Lake Ontario: Prinyer’s Cove Source

Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: August 10, 2021
25 Observations
0 Issues

Smiths Bay on Lake Ontario: Smiths Bay

Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: November 5, 2019
35 Observations
0 Issues

Stream in Maryon Wilson Park: Maryon Wilson Park

London, Greenwich, United Kingdom

Waterbody Type:
Stream
Last observed: April 13, 2025
Monitored since: April 25, 2024
3 Observations
0 Issues

Slade Pond: Slade Pond Outfall

London, Greenwich, United Kingdom

Waterbody Type:
Pond
Last observed: April 13, 2025
Monitored since: April 25, 2024
2 Observations
0 Issues

Brook: St Joseph Hood Memorial Playing Fields

London, Merton, United Kingdom

Waterbody Type:
River
Last observed: April 13, 2025
Monitored since: January 11, 2025
5 Observations
0 Issues

Woodscreek : Woodscreek Park: 3 Pipe Inlet, Ackman Rd and Golf Course Rd, Crystal Lake, Il

Crystal Lake, Illinois, United States

Waterbody Type:
Creek
Last observed: April 13, 2025
Monitored since: November 27, 2024
5 Observations
0 Issues

Sangamon River: River Bend Forest Preserve site

Mahomet, Illinois, United States

Waterbody Type:
River
Last observed: April 12, 2025
Monitored since: November 7, 2021
42 Observations
0 Issues

Mill Pond: Mill Pond

Milton, Ontario, Canada

Waterbody Type:
Pond
Last observed: April 12, 2025
Monitored since: April 12, 2025
1 Observations
0 Issues

Fox River: Fabyan Forest Preserve

Geneva, Illinois, United States

Waterbody Type:
River
Last observed: April 12, 2025
Monitored since: January 13, 2022
34 Observations
0 Issues

Mill Creek: Mill Creek at Campton FP

Saint Charles, Illinois, United States

Waterbody Type:
Creek
Last observed: April 12, 2025
Monitored since: December 27, 2023
10 Observations
0 Issues

West Davignon Creek: West Davignon Brookfield Ave

Ontario, Canada

Waterbody Type:
Creek
Last observed: April 12, 2025
Monitored since: March 1, 2024
29 Observations
0 Issues

Lake Charles at Beach Inlet: Lake Charles at Beach Inlet

Westmont, Illinois, United States

Waterbody Type:
Pond
Last observed: April 12, 2025
Monitored since: November 30, 2024
6 Observations
0 Issues

St. Marys River: Bellevue Park Topsail Island

Ontario, Canada

Waterbody Type:
River
Last observed: April 12, 2025
Monitored since: February 22, 2024
36 Observations
0 Issues

East Branch of the DuPage River: East Branch DuPage River at Churchill Woods

Lombard, Illinois, United States

Waterbody Type:
River
Last observed: April 12, 2025
Monitored since: January 29, 2024
7 Observations
0 Issues

Lake on the Mountain: near Glenora, Prince Edward County

Adolphustown, Ontario, Canada

Waterbody Type:
Lake
Last observed: April 12, 2025
Monitored since: July 29, 2017
53 Observations
0 Issues

Edgware Brook: Chandos Park (Downstream)

London, Harrow, United Kingdom

Waterbody Type:
Stream
Last observed: April 12, 2025
Monitored since: February 9, 2024
16 Observations
0 Issues

Edgware Brook: Chandos Park (Upstream)

London, Harrow, United Kingdom

Waterbody Type:
Stream
Last observed: April 12, 2025
Monitored since: February 9, 2024
16 Observations
0 Issues

Hogsmill: Downstream Stepping Stones

Epsom, Surrey, United Kingdom

Waterbody Type:
River
Last observed: April 12, 2025
Monitored since: June 22, 2024
7 Observations
0 Issues