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?

66,499 observations

+99 new observations added in the past 30 days

D/S Whitehall Rd : The Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Martin Curry
Tue, 26 Aug 2025 14:35:00 +0000

Whitehall Outfalls : The Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Martin Curry
Tue, 26 Aug 2025 14:30:00 +0000

Black Bass Bay : Mississippi Lake

Ontario, Canada

Observed by
Peter KleinBeernink
Tue, 26 Aug 2025 09:00:00 -0400

Mill Creek off Morgantown Rd : Mill Creek

Foxworth, Mississippi, United States

Observed by
Theresa Thornhill
Tue, 26 Aug 2025 08:00:00 -0500

Pearl River at Carroll Loop : Pearl River

Foxworth, Mississippi, United States

Observed by
Theresa Thornhill
Tue, 26 Aug 2025 07:00:00 -0500

KC's Dock : Lake Cane

Orlando, Florida, United States

Observed by
Casey Johnson
Tue, 26 Aug 2025 07:56:32 -0400

River Brent by 18th tee : River Brent Ealing Golf Course

London, Ealing, United Kingdom

Observed by
John Branch
Tue, 26 Aug 2025 11:30:00 +0100

The Swale Wetland : Rideau River

Smiths Falls, Ontario, Canada

Observed by
Rideau Roundtable
Mon, 25 Aug 2025 14:00:00 -0400

Boat Ramp @ Diamond Lake Park : Diamond Lake

Ontario, Canada

Observed by
Jamie & Laurie Greenhough
Mon, 25 Aug 2025 11:04:00 -0400

Dock @ Rydal Bank Park : Ottertail Lake

Ontario, Canada

Observed by
Jamie & Laurie Greenhough
Mon, 25 Aug 2025 10:38:00 -0400

Rock Lake - Old Mill Beach Boat Ramp : Rock Lake

Ontario, Canada

Observed by
Jamie & Laurie Greenhough
Mon, 25 Aug 2025 10:16:00 -0400

Bonegate Stream : Bonesgate Stream

Epsom, England, United Kingdom

Observed by
Robb Reeves
Mon, 25 Aug 2025 13:41:00 +0100

Flintoff Bay : Mississippi Lake

Ontario, Canada

Observed by
Dave Robertson
Mon, 25 Aug 2025 08:25:00 -0400

From Godalming Treatment Works : Unstead Inlet

Godalming, Surrey, United Kingdom

Observed by
Andrew Lockett
Mon, 25 Aug 2025 10:30:00 +0100

Unstead Exit (outflow) : Unstead Wetland Reserve

Bramley, Surrey, United Kingdom

Observed by
Andrew Lockett
Mon, 25 Aug 2025 10:10:00 +0100

East Lagoon : Unstead Wetland Reserve

Bramley, Surrey, United Kingdom

Observed by
Andrew Lockett
Mon, 25 Aug 2025 10:00:00 +0100

Whitefish Island East Viewing Platform : St Marys River

Sault Ste. Marie, Ontario, Canada

Observed by
Community Volunteers
Sun, 24 Aug 2025 18:10:00 -0400

Drake St. Park : Clark Creek

Ontario, Canada

Observed by
Community Volunteers
Sun, 24 Aug 2025 17:25:00 -0400

Matotee Camp : St. Marys River - Wilson Channel

Ontario, Canada

Observed by
Sally Behr Schendel
Sun, 24 Aug 2025 16:32:00 -0400

Madison Landing : Ross Barnett Reservoir

Ridgeland, Mississippi, United States

Observed by
Jennifer Sigrest
Sun, 24 Aug 2025 13:36:00 -0500