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?

66,082 observations

+773 new observations added in the past 30 days

Osze Beach 16-2 : Wakaw Lake

Saskatchewan, Canada

Observed by
Dr. Brian Skulski
Mon, 26 May 2025 08:15:55 -0600

Saint Joseph Creek : Saint Joseph Creek

Lisle, Illinois, United States

Observed by
Robert Swirsky
Mon, 26 May 2025 09:00:00 -0500

Milford Haven : Koshkawong River

Ontario, Canada

Observed by
Janice Fairfax
Mon, 26 May 2025 09:40:00 -0400

Footbridge near Rangers Road : Ching Brook

Buckhurst Hill, Essex, United Kingdom

Observed by
Mo Tausif
Mon, 26 May 2025 14:40:00 +0100

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
Eleonora Coli
Mon, 26 May 2025 09:12:00 -0400

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
Karis Shaver
Mon, 26 May 2025 09:12:00 -0400

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
Amber Humpartzian
Mon, 26 May 2025 09:10:00 -0400

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
sophia belhumeur
Mon, 26 May 2025 08:59:00 -0400

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
Eleonora Coli
Mon, 26 May 2025 08:56:00 -0400

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
Amber Humpartzian
Mon, 26 May 2025 08:56:00 -0400

Iroquois Beach : St. Lawrence River

Iroquois, Ontario, Canada

Observed by
Karis Shaver
Mon, 26 May 2025 08:56:00 -0400

Birchwood Close : Rive Ditch

Addlestone, Surrey, United Kingdom

Observed by
Emma Slaymaker
Mon, 26 May 2025 12:24:12 +0000

Wetland water run off behind QMS : Stream behind QMS

New Brunswick, Canada

Observed by
Mme S. Dow
Mon, 26 May 2025 09:17:00 -0300

Wey Navigation : River Wey

Guildford, Surrey, United Kingdom

Observed by
Fiona Poulter
Mon, 26 May 2025 13:02:00 +0100

KC's Dock : Lake Cane

Orlando, Florida, United States

Observed by
Casey Johnson
Mon, 26 May 2025 07:27:40 -0400

Island Training location, Riverside : River Wey

Guildford, Surrey, United Kingdom

Observed by
Fiona Poulter
Mon, 26 May 2025 12:15:00 +0100

Black Bass Bay : Mississippi Lake

Ontario, Canada

Observed by
Peter KleinBeernink
Mon, 26 May 2025 07:15:00 -0400

Lamberhurst 1 : River Teise

Tunbridge Wells, England, United Kingdom

Observed by
Alicia Longley-Coomber
Mon, 26 May 2025 10:40:00 +0000

Lamberhurst 2 : River Teise

Tunbridge Wells, England, United Kingdom

Observed by
Alicia Longley-Coomber
Mon, 26 May 2025 10:30:00 +0000

From Godalming Treatment Works : Unstead Inlet

Godalming, Surrey, United Kingdom

Observed by
Andrew Lockett
Mon, 26 May 2025 11:00:00 +0100