Observations

Testers upload observations each time they test at a location. Each individual observation report shows you the measurements taken on a specific day at a specific location. What's this?

62,862 observations

+723 new observations added in the past 30 days

Confluent Saint-Charles / Lairet : Rivière Saint-Charles

Québec, Quebec, Canada

Observed by
Janie Verreault
Fri, 16 May 2025 14:54:00 -0400

fullersburg woods : Salt Creek

Oak Brook, Illinois, United States

Observed by
Linda Cise
Fri, 16 May 2025 13:45:00 -0500

Springbrook Water Reclamation Center Upstream : DuPage River

Bolingbrook, Illinois, United States

Observed by
Amy Wrigley
Fri, 16 May 2025 13:40:00 -0500

Root River off Hwy 17 N (near Teen Challenge) : Root River

Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 13:00:00 -0400

Root River Fourth Line E : Root River

Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 12:49:00 -0400

Root River Wishart Park : Root River

Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 12:08:00 -0400

Bellevue Park Topsail Island : St. Marys River

Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 11:35:00 -0400

Dacey Rd at St. Marys River : Storm Water

Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 11:30:00 -0400

Bellevue Marina : St Marys River

Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 10:40:00 -0400

Newgate Street : The Ching

Buckhurst Hill, Waltham Forest, United Kingdom

Observed by
Martin Curry
Fri, 16 May 2025 14:35:00 +0000

D/S Whitehall Rd : The Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Martin Curry
Fri, 16 May 2025 14:25:00 +0000

Caribou Lake - off boat ramp : Caribou Lake

Ontario, Canada

Observed by
Janice Fairfax
Fri, 16 May 2025 10:20:00 -0400

Whitehall Outfalls : The Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Martin Curry
Fri, 16 May 2025 14:20:00 +0000

FAL PS Creek Bed : Falgarwood Creek

Oakville, Ontario, Canada

Observed by
William Bowes
Fri, 16 May 2025 10:05:00 -0400

Darlands Lake (Downstream) : Folly Brook/Dollis Brook

London, Barnet, United Kingdom

Observed by
David Roth
Fri, 16 May 2025 15:00:00 +0100

Barabara Rd at Lake Huron : Lake Huron

Thessalon, Ontario, Canada

Observed by
Community Volunteers
Fri, 16 May 2025 09:55:00 -0400

Vincent Road : The Ching

London, Waltham Forest, United Kingdom

Observed by
Janet Laban
Fri, 16 May 2025 12:30:00 +0100

Highams Park Lake : The Ching

London, Waltham Forest, United Kingdom

Observed by
Janet Laban
Fri, 16 May 2025 11:54:00 +0100

9 Gordon Ave E4 : The Ching

London, Waltham Forest, United Kingdom

Observed by
Janet Laban
Fri, 16 May 2025 10:35:00 +0100

Folly Lane EA monitoring point : The Ching

London, Waltham Forest, United Kingdom

Observed by
Lis Loebner
Fri, 16 May 2025 09:30:00 +0100