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?

64,365 observations

+732 new observations added in the past 30 days

Whitehall Outfalls : The Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Martin Curry
Mon, 30 Jun 2025 16:25:00 +0000

Bellevue Park Topsail Island : St. Marys River

Ontario, Canada

Observed by
Community Volunteers
Mon, 30 Jun 2025 12:06:00 -0400

Elford Walled Garden : Tame

Lichfield District, Staffordshire, United Kingdom

Observed by
Jane Loewy
Mon, 30 Jun 2025 15:47:00 +0000

Lorraine Bay East : Lake Erie

Ontario, Canada

Observed by
Gary Stemerdink
Mon, 30 Jun 2025 11:27:00 -0400

Portland Municipal Beach : Big Rideau Lake

Portland, Ontario, Canada

Observed by
Linda Hamilton
Mon, 30 Jun 2025 11:15:00 -0400

Portland, Bayview Marina at Big Rideau Lake : Big Rideau Lake

Portland, Ontario, Canada

Observed by
Linda Hamilton
Mon, 30 Jun 2025 10:50:00 -0400

Mississippi Lake - by Willis Island : Mississippi Lake

Ontario, Canada

Observed by
Jim Alexander
Mon, 30 Jun 2025 10:15:00 -0400

Ironwoods Bay : Big Rideau Lake

Portland, Ontario, Canada

Observed by
Linda Hamilton
Mon, 30 Jun 2025 10:15:00 -0400

Wyke Beck : Wyke Beck

Leeds, England, United Kingdom

Observed by
Paul Doney
Mon, 30 Jun 2025 15:08:00 +0100

Décharge : Stream Ruisseau

Saint Lazare, Quebec, Canada

Observed by
Chantal Sauvé
Mon, 30 Jun 2025 14:07:21 +0000

Sinclair Shore - Dock : Mississippi Lake

Ontario, Canada

Observed by
Jim Alexander
Mon, 30 Jun 2025 09:55:00 -0400

Len's Cove Marina, Portland, on the Big Rideau : Big Rideau Lake

Portland, Ontario, Canada

Observed by
Linda Hamilton
Mon, 30 Jun 2025 09:30:00 -0400

Halton Moor Cartmell Drive : Wyke Beck

Leeds, England, United Kingdom

Observed by
Paul Doney
Mon, 30 Jun 2025 14:25:00 +0100

Henley Island Boathouse : Martindale Pond

St. Catharines, Ontario, Canada

Observed by
Nengi Dublin-Green
Mon, 30 Jun 2025 12:28:00 +0000

Lac Barnes, : Lac Barns, Val des Monts

Quebec, Canada

Observed by
Susan Morrison
Mon, 30 Jun 2025 08:03:00 -0400

Sentier des Fougères : Lac Stabell

Quebec, Canada

Observed by
Luc Bossé
Mon, 30 Jun 2025 08:00:00 -0400

Flintoff Bay : Mississippi Lake

Ontario, Canada

Observed by
Dave Robertson
Mon, 30 Jun 2025 07:50:00 -0400

Killingbeck Fields, Weir : Wyke Beck

Leeds, England, United Kingdom

Observed by
Paul Doney
Mon, 30 Jun 2025 12:50:00 +0100

Wyke Beck Fearnville Playing Fields : Wyke Beck

Leeds, England, United Kingdom

Observed by
Paul Doney
Mon, 30 Jun 2025 10:55:00 +0100

Wyke Beck Arthur's Rein South Parkway : Wyke Beck

Leeds, England, United Kingdom

Observed by
Paul Doney
Mon, 30 Jun 2025 10:50:00 +0100