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?

66,203 observations

+516 new observations added in the past 30 days

Bloomington Normal Water Reclamation District (BNWRD) Sugar Creek Monitoring Site : Sugar Creek

Normal, Illinois, United States

Observed by
Katie Vogler
Wed, 27 Aug 2025 11:40:00 -0500

Ewing Park II Sugar Creek Monitoring Site : Sugar Creek

Bloomington, Illinois, United States

Observed by
Katie Vogler
Wed, 27 Aug 2025 11:33:00 -0500

End of B Line - Shoal Island : Lake Huron - Shoal Island

Ontario, Canada

Observed by
Janice Fairfax
Wed, 27 Aug 2025 09:25:00 -0400

Out from Pelican Shores : Turtle Lake

Saskatchewan, Canada

Observed by
Louis Bossaer
Wed, 27 Aug 2025 13:25:00 +0000

Pelican Shores : Turtle Lake

Saskatchewan, Canada

Observed by
Louis Bossaer
Wed, 27 Aug 2025 13:00:00 +0000

Broadford Road Bridge : River Wey

Guildford, England, United Kingdom

Observed by
Paul Holmes-Higgin
Wed, 27 Aug 2025 11:25:00 +0000

Thessalon River off Lorne St W. : Thessalon River

Thessalon, Ontario, Canada

Observed by
Huron North Community Volunteers
Tue, 26 Aug 2025 16:30:00 -0400

Peace Park Beach : Lake Huron

Thessalon, Ontario, Canada

Observed by
Huron North Community Volunteers
Tue, 26 Aug 2025 12:30:00 -0400

Newgate Street : The Ching

Buckhurst Hill, Waltham Forest, United Kingdom

Observed by
Martin Curry
Tue, 26 Aug 2025 14:50:00 +0000

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

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