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

+760 new observations added in the past 30 days

Mitchell Lake : Mitchell Lake

Carol Stream, Illinois, United States

Observed by
Jill Mattox
Tue, 22 Apr 2025 08:17:00 -0500

Arnos Park Growing Space (downstream) : Pymmes Brook

London, Enfield, United Kingdom

Observed by
Matthew Pierce
Tue, 22 Apr 2025 12:50:00 +0100

Middle Mill : Hogsmill

London, Kingston upon Thames, United Kingdom

Observed by
Alistair Garner
Tue, 22 Apr 2025 12:13:00 +0100

Arnos Park Growing Space (upstream) : Pymmes Brook

London, Enfield, United Kingdom

Observed by
Matthew Pierce
Tue, 22 Apr 2025 12:00:00 +0100

Waterfall Walk 2 (Downstream) : Pymmes Brook

London, Barnet, United Kingdom

Observed by
Matthew Pierce
Tue, 22 Apr 2025 11:34:00 +0100

Waterfall Walk 1 (Upstream) : Pymmes Brook

London, Barnet, United Kingdom

Observed by
Matthew Pierce
Tue, 22 Apr 2025 11:28:00 +0100

North Aurora Riverfront Park : Fox River

North Aurora, Illinois, United States

Observed by
Maura Canzano
Mon, 21 Apr 2025 17:34:00 -0500

West Branch DuPage River : DuPage River

Naperville, Illinois, United States

Observed by
Janet Knight
Mon, 21 Apr 2025 13:50:00 -0500

Upstream of Connaught Water : The Ching

Buckhurst Hill, Essex, United Kingdom

Observed by
Robin Pettitt
Mon, 21 Apr 2025 19:36:00 +0100

Otter Creek : Otter Creek

Elgin, Illinois, United States

Observed by
Gary Swick
Mon, 21 Apr 2025 12:43:00 -0500

Mill Vale Outfall : Glassmill Pond

London, Bromley, United Kingdom

Observed by
Jeff Royce
Mon, 21 Apr 2025 15:10:00 +0100

Glassmill Pond inlet : Ravensbourne

London, Bromley, United Kingdom

Observed by
Jeff Royce
Mon, 21 Apr 2025 15:05:00 +0100

Ptarmigan Bridge : River

Fort Mcmurray, Alberta, Canada

Observed by
Matt Stouten
Mon, 21 Apr 2025 12:46:00 +0000

Grovelands Park Stream below dam : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Mon, 21 Apr 2025 13:00:00 +0100

Grovelands Park Lake Downstream of reedbeds : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Mon, 21 Apr 2025 13:00:00 +0100

Grovelands Park Lake Entry : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Mon, 21 Apr 2025 13:00:00 +0100

Grovelands Park Lake Outfall by cafe and dam : Salmons Brook/Houndsden Gutter/Grovelands Stream

London, Enfield, United Kingdom

Observed by
Peter Leedham
Mon, 21 Apr 2025 13:00:00 +0100

Downstream of Connaught Water : The Ching

Buckhurst Hill, Essex, United Kingdom

Observed by
Robin Pettitt
Mon, 21 Apr 2025 11:00:00 +0100

Canoe Launch at DuPage River Greenway : DuPage River

Bolingbrook, Illinois, United States

Observed by
Nefertari Jones
Sun, 20 Apr 2025 19:36:00 -0500

Lily Cache Creek at Rockhurst Rd : Lily Cache Creek

Bolingbrook, Illinois, United States

Observed by
Nefertari Jones
Sun, 20 Apr 2025 19:19:00 -0500