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?

62,606 observations

+689 new observations added in the past 30 days

Garden at 42 Sturt Road : River Wey

Haslemere, West Sussex, United Kingdom

Observed by
Alastair Bayliss
Mon, 31 Mar 2025 13:51:00 +0100

Dagenham Brook D/S : Dagenham Brook

London, Waltham Forest, United Kingdom

Observed by
Steve Williams
Mon, 31 Mar 2025 13:45:00 +0100

Dagenham Brook U/S : Dagenham Brook

London, Waltham Forest, United Kingdom

Observed by
Steve Williams
Mon, 31 Mar 2025 13:45:00 +0100

From Godalming Treatment Works : Unstead Inlet

Godalming, Surrey, United Kingdom

Observed by
Andrew Lockett
Mon, 31 Mar 2025 13:00:00 +0100

Hatch Roundabout - Downstream : The Ching

London, Waltham Forest, United Kingdom

Observed by
Derek Seume
Mon, 31 Mar 2025 12:43:00 +0100

Thornhurst Brook at Vachery : Thornhurst Brook

Cranleigh, Surrey, United Kingdom

Observed by
Brian and Claire clarke
Mon, 31 Mar 2025 11:15:00 +0000

Hatch Roundabout - Upstream : The Ching

London, Waltham Forest, United Kingdom

Observed by
Derek Seume
Mon, 31 Mar 2025 12:13:00 +0100

Unstead Exit (outflow) : Unstead Wetland Reserve

Bramley, Surrey, United Kingdom

Observed by
Andrew Lockett
Mon, 31 Mar 2025 12:00:00 +0100

River Way : River Way

Woking, Surrey, United Kingdom

Observed by
K Searle
Mon, 31 Mar 2025 11:13:00 +0100

Allerton Park CSO - above : Gledhow Beck

Leeds, Leeds, United Kingdom

Observed by
Simon Conyers
Mon, 31 Mar 2025 10:30:00 +0100

Redcroft Walk / Horsham Road : Cranleigh Waters

Cranleigh, Surrey, United Kingdom

Observed by
Trevor Dale
Mon, 31 Mar 2025 10:30:00 +0100

E-coli Testing Location 1 (UoL) : Gledhow Lake

Leeds, Leeds, United Kingdom

Observed by
Simon Conyers
Mon, 31 Mar 2025 08:00:00 +0100

Riverbank Neighbors - Berteau : Chicago River

Chicago, Illinois, United States

Observed by
Sean Carino
Sun, 30 Mar 2025 19:38:00 -0500

Dufferin Islands Nature Area : Niagara River

Ontario, Canada

Observed by
Hasmita Patel
Sun, 30 Mar 2025 19:15:00 -0400

Windsor : Lake St. Clair

Tecumseh, Ontario, Canada

Observed by
Isabelle Kolodziej
Sun, 30 Mar 2025 19:06:00 -0400

Windsor : Lake St. Clair

Tecumseh, Ontario, Canada

Observed by
Isabelle Kolodziej
Sun, 30 Mar 2025 19:06:00 -0400

Canoe Launch at DuPage River Greenway : DuPage River

Bolingbrook, Illinois, United States

Observed by
Nefertari Jones
Sun, 30 Mar 2025 18:06:00 -0500

Lily Cache Creek at Rockhurst Rd : Lily Cache Creek

Bolingbrook, Illinois, United States

Observed by
Nefertari Jones
Sun, 30 Mar 2025 17:46:00 -0500

Box Lake Dock : Box Lake

British Columbia, Canada

Observed by
Rick and Janice Hogg
Sun, 30 Mar 2025 15:10:00 -0700

Madison Landing : Ross Barnett Reservoir

Ridgeland, Mississippi, United States

Observed by
Jennifer Sigrest
Sun, 30 Mar 2025 17:02:00 -0500