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?

66,311 observations

+505 new observations added in the past 30 days

SLCWB : Sharbot Lake

Ontario, Canada

Observed by
Mary Keith
Tue, 29 Jul 2025 09:43:00 -0400

SLSWB : Sharbot Lake

Ontario, Canada

Observed by
Mary Keith
Tue, 29 Jul 2025 09:28:00 -0400

SLNWB : Sharbot Lake North West Basin

Ontario, Canada

Observed by
Mary Keith
Tue, 29 Jul 2025 09:08:00 -0400

SLMWB : Sharbot Lake

Ontario, Canada

Observed by
Mary Keith
Tue, 29 Jul 2025 08:47:00 -0400

Lake Huron : Lake Huron

Thessalon, Ontario, Canada

Observed by
Community Volunteers
Tue, 29 Jul 2025 08:45:00 -0400

Saipem S3 - Chapel Mill Road : Hogsmill

London, Kingston upon Thames, United Kingdom

Observed by
William Welhenage
Tue, 29 Jul 2025 12:30:00 +0100

Mill Vale Outfall : Glassmill Pond

London, Bromley, United Kingdom

Observed by
Jeff Royce
Tue, 29 Jul 2025 11:30:00 +0100

Allerton Park CSO - above : Gledhow Beck

Leeds, Leeds, United Kingdom

Observed by
Simon Conyers
Tue, 29 Jul 2025 11:30:00 +0100

Glassmill Pond inlet : Ravensbourne

London, Bromley, United Kingdom

Observed by
Jeff Royce
Tue, 29 Jul 2025 11:20:00 +0100

Allerton Park CSO - below : Gledhow Beck

Leeds, Leeds, United Kingdom

Observed by
Simon Conyers
Tue, 29 Jul 2025 11:00:00 +0100

Gledhow Lane CSO - above : Gledhow Beck

Leeds, Leeds, United Kingdom

Observed by
Simon Conyers
Tue, 29 Jul 2025 10:30:00 +0100

Gledhow Lane CSO - below : Gledhow Beck

Leeds, Leeds, United Kingdom

Observed by
Simon Conyers
Tue, 29 Jul 2025 10:00:00 +0100

Ram Beck : Ram Beck

Leeds, Leeds, United Kingdom

Observed by
Martin Child
Tue, 29 Jul 2025 06:20:00 +0100

Little Carp River Carpin Beach Rd : Little Carp River

Ontario, Canada

Observed by
Community Volunteers
Mon, 28 Jul 2025 18:32:00 -0400

Ikwe Pt : Mississippi Lake

Ontario, Canada

Observed by
Robert Bell
Mon, 28 Jul 2025 17:30:00 -0400

Canal Beaudet : Canal Beaudet, 302 chemin du fleuve

Coteau Du Lac, Quebec, Canada

Observed by
Marc-André Simard
Mon, 28 Jul 2025 17:26:00 -0400

Center of Lake McGlashan, deepest point : Lac McGlashan

Val Des Monts, Quebec, Canada

Observed by
Kat Kavanagh
Mon, 28 Jul 2025 17:12:00 -0400

Fosse MG4 : Lac McGregor

Val-des-Monts, Quebec, Canada

Observed by
Marianne O'Byrne
Mon, 28 Jul 2025 15:59:00 -0400

Fosse MG2 : Lac McGregor

Val-des-Monts, Quebec, Canada

Observed by
Marianne O'Byrne
Mon, 28 Jul 2025 15:54:00 -0400

Chapel Road Beach : Bras D'or Lake

East Bay, Nova Scotia, Canada

Observed by
Teresa McKinnon
Mon, 28 Jul 2025 16:30:00 -0300