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?

8,174 locations

+103 new sample locations added in the past 30 days

Fox River in McHenry IL: Fox River at Route 120 bridge in McHenry

Mchenry, Illinois, United States

Waterbody Type:
River
Last observed: April 14, 2025
Monitored since: November 25, 2024
6 Observations
0 Issues

Blackberry Creek at Pouley Rd.: Blackberry Creek

Elburn, Illinois, United States

Waterbody Type:
Creek
Last observed: April 14, 2025
Monitored since: November 15, 2024
6 Observations
0 Issues

McKee Creek: McKee Creek

Batavia, Illinois, United States

Waterbody Type:
Stream
Last observed: April 14, 2025
Monitored since: November 29, 2023
18 Observations
0 Issues

Cranleigh Waters: Sewage / waste water plant outlet

Cranleigh, Surrey, United Kingdom

Waterbody Type:
River
Last observed: April 14, 2025
Monitored since: March 11, 2025
3 Observations
2 Issues

Richland Creek: Richland Creek @ Centennial Park

Belleville, Illinois, United States

Waterbody Type:
Creek
Last observed: April 14, 2025
Monitored since: November 7, 2022
42 Observations
0 Issues

Lake Ontario: Rhododendron Gardens Park

Port Credit, Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: April 13, 2025
1 Observations
0 Issues

Lake Ontario: Tall Oaks Park

Port Credit, Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: April 13, 2025
1 Observations
0 Issues

Credit River: Port Credit Memorial Park

Port Credit, Ontario, Canada

Waterbody Type:
River
Last observed: April 13, 2025
Monitored since: April 13, 2025
1 Observations
0 Issues

Lake Ontario: Richard’s Memorial Park

Port Credit, Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: April 13, 2025
1 Observations
0 Issues

Lake Ontario: Jack Darling Park

Port Credit, Ontario, Canada

Waterbody Type:
Lake
Last observed: April 13, 2025
Monitored since: April 13, 2025
1 Observations
0 Issues

Credit River: Erindale Park

Streetsville, Ontario, Canada

Waterbody Type:
River
Last observed: April 13, 2025
Monitored since: April 13, 2025
1 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

Mill Pond: Mill Pond

Milton, Ontario, Canada

Waterbody Type:
Pond
Last observed: April 12, 2025
Monitored since: April 12, 2025
1 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 Sehoy: MPI Lake Training

Hattiesburg, Mississippi, United States

Waterbody Type:
Lake
Last observed: April 11, 2025
Monitored since: April 11, 2025
1 Observations
0 Issues

St Lawrence River: St Lawrence River

Ontario, Canada

Waterbody Type:
Unknown
Last observed: April 10, 2025
Monitored since: April 10, 2025
1 Observations
0 Issues

West Pearl: Hwy 59

Pearl River, Louisiana, United States

Waterbody Type:
River
Last observed: April 9, 2025
Monitored since: May 2, 2021
9 Observations
0 Issues

Rivière Richelieu: Centre-de-Plein-air-Ronald-Beauregard

Montreal, Quebec, Canada

Waterbody Type:
River
Last observed: April 9, 2025
Monitored since: July 26, 2024
3 Observations
0 Issues

Bay of Quinte: Bay of Quinte Aikins Rd.

Rednersville, Ontario, Canada

Waterbody Type:
Unknown
Last observed: April 8, 2025
Monitored since: April 17, 2023
8 Observations
0 Issues

Glen Abbey Golf Course Stream 1: Glen Abbey Golf Course Stream 1

Oakville, Ontario, Canada

Waterbody Type:
Stream
Last observed: April 7, 2025
Monitored since: April 7, 2025
1 Observations
0 Issues