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?

66,502 observations

+94 new observations added in the past 30 days

Lakeside Park Beach - North Shore : Lake Huron

Thessalon, Ontario, Canada

Observed by
Huron North Community Volunteers
Sat, 02 Aug 2025 11:00:00 -0400

Whitehall Outfall 5b : River Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Anne Rowland
Sat, 02 Aug 2025 14:40:00 +0100

Whitehall Outfall 5a : River Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Anne Rowland
Sat, 02 Aug 2025 14:40:00 +0100

The White House Bridge (Old River Lea) : River Lea

London, Hackney, United Kingdom

Observed by
Clare Taylor
Sat, 02 Aug 2025 14:11:46 +0100

Point 2 : Old River Lea

London, Waltham Forest, United Kingdom

Observed by
Clare Taylor
Sat, 02 Aug 2025 13:37:59 +0100

River Leam North Bank RLSCC : River Leam

Leamington, Warwickshire, United Kingdom

Observed by
Jo Beckett
Sat, 02 Aug 2025 13:00:00 +0100

Great Heads Beck 2 : Great Heads Beck, Roundhay Park

Leeds, Leeds, United Kingdom

Observed by
Cecily Jarvis
Sat, 02 Aug 2025 11:20:00 +0100

Wealdstone Brook : Wealdstone Brook

London, Brent, United Kingdom

Observed by
John Poole
Sat, 02 Aug 2025 11:00:00 +0100

Great Heads Beck 3 : Great Heads Beck, Roundhay Park

Leeds, Leeds, United Kingdom

Observed by
Cecily Jarvis
Sat, 02 Aug 2025 10:45:00 +0100

Rouge River : Rouge River

Quebec, Canada

Observed by
de Haan Family
Fri, 01 Aug 2025 17:33:17 -0400

Helliwell Lake Bridge (RR 250) : Helliwell Lake

Alberta, Canada

Observed by
Petra Rowell
Fri, 01 Aug 2025 15:30:00 -0600

Lac à la balle : Lac à la balle

Saint Félix D'Otis, Quebec, Canada

Observed by
Denis Otis
Fri, 01 Aug 2025 18:14:56 +0000

Sinclair Shore - Dock : Mississippi Lake

Ontario, Canada

Observed by
Jim Alexander
Fri, 01 Aug 2025 13:40:00 -0400

Site 9 : Lake Muskoka

Gravenhurst, Ontario, Canada

Observed by
Robert Haag
Fri, 01 Aug 2025 17:39:00 +0000

Cedar Vale Park (Site 4) : Mill Stream

Langford, British Columbia, Canada

Observed by
Peninsula Streams & Shorelines
Fri, 01 Aug 2025 10:10:48 -0700

Finlayson Arm Road (Site 1) : Mill Stream

Highlands, British Columbia, Canada

Observed by
Peninsula Streams & Shorelines
Fri, 01 Aug 2025 09:44:47 -0700

West Lagoon - West/Main Deck : Blakeburn Lagoons

Port Coquitlam, British Columbia, Canada

Observed by
John Saremba
Fri, 01 Aug 2025 09:39:53 -0700

Chow Nicoll Park (Site 2) : Mill Stream

Highlands, British Columbia, Canada

Observed by
Peninsula Streams & Shorelines
Fri, 01 Aug 2025 09:30:00 -0700

Ottawa River : Ottawa River

Chute à Blondeau, Ontario, Canada

Observed by
Inga Chisholm
Fri, 01 Aug 2025 12:30:00 -0400

Goldie Park (Site 3) : Mill Stream

Langford, British Columbia, Canada

Observed by
Peninsula Streams & Shorelines
Fri, 01 Aug 2025 09:13:00 -0700