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?

66,524 observations

+47 new observations added in the past 30 days

Picton Harbour at Mouth of Marsh Creek : Picton Harbour on Lake Ontario

Picton, Ontario, Canada

Observed by
Don Ross
Fri, 28 Mar 2025 13:25:00 -0400

West Ridge Nature Park Pond : West Ridge Nature Park Pond

Chicago, Illinois, United States

Observed by
Hannah Dove
Fri, 28 Mar 2025 12:20:00 -0500

Outflow from GSTW into Wey Natural River: Trunley Heath Road : Wey Natural River

Godalming, Surrey, United Kingdom

Observed by
Trevor Murrells
Fri, 28 Mar 2025 16:55:00 +0000

Dixie Creek at Gaslight Dr : Dixie Creek at Gaslight Dr

Algonquin, Illinois, United States

Observed by
Brad Andresen
Fri, 28 Mar 2025 11:38:00 -0500

DuPage River at Riverwalk South Covered Bridge : DuPage River

Naperville, Illinois, United States

Observed by
Shelley Birdsong
Fri, 28 Mar 2025 11:31:00 -0500

Ratt Creek at Hanson Rd : Ratt Creek at Hanson Rd

Algonquin, Illinois, United States

Observed by
Brad Andresen
Fri, 28 Mar 2025 11:26:00 -0500

Outlet into Pond Wood : Unstead Wetland Reserve

Guildford Borough, Surrey, United Kingdom

Observed by
Trevor Murrells
Fri, 28 Mar 2025 16:20:00 +0000

East Branch DuPage River at Churchill Woods : East Branch of the DuPage River

Lombard, Illinois, United States

Observed by
Beth Peluse
Fri, 28 Mar 2025 11:15:00 -0500

Folly Lane EA monitoring point : The Ching

London, Waltham Forest, United Kingdom

Observed by
Lis Loebner
Fri, 28 Mar 2025 15:50:00 +0000

Old Renwick Road Bridge, Plainfield Park District : DuPage River

Plainfield, Illinois, United States

Observed by
Lea Rodbarry
Fri, 28 Mar 2025 10:45:00 -0500

Welland River, River Rd, EC Brown Conservation Area : Welland River

Ontario, Canada

Observed by
Duncan MacDuff
Fri, 28 Mar 2025 11:30:00 -0400

Small pool on UWNR near to GSTW outflow, east side of Trunley Health Road : Unstead Wetland Nature Reserve

Godalming, Surrey, United Kingdom

Observed by
Trevor Murrells
Fri, 28 Mar 2025 14:55:00 +0000

Downstream of Connaught Water : The Ching

Buckhurst Hill, Essex, United Kingdom

Observed by
Robin Pettitt
Fri, 28 Mar 2025 14:50:00 +0000

Upstream of Connaught Water : The Ching

Buckhurst Hill, Essex, United Kingdom

Observed by
Robin Pettitt
Fri, 28 Mar 2025 14:45:00 +0000

Upstream of Connaught Water : The Ching

Buckhurst Hill, Essex, United Kingdom

Observed by
Robin Pettitt
Fri, 28 Mar 2025 14:45:00 +0000

Welland River, River Rd Parkette : Welland River, River Rd Parkette

Welland, Ontario, Canada

Observed by
Duncan MacDuff
Fri, 28 Mar 2025 10:45:00 -0400

Natural Wey River at Unstead close to bridge (Northside) : Natural Wey River (Unstead)

Godalming, Surrey, United Kingdom

Observed by
Trevor Murrells
Fri, 28 Mar 2025 14:35:00 +0000

Henley Island Boathouse : Martindale Pond

St. Catharines, Ontario, Canada

Observed by
Nengi Dublin-Green
Fri, 28 Mar 2025 14:14:00 +0000

Whitehall Outfall 5b : River Ching

Buckhurst Hill, Redbridge, United Kingdom

Observed by
Anne Rowland
Fri, 28 Mar 2025 14:00:00 +0000

Compton Common: Stream that passes through pipe under path (East side) : Stream at Compton Common

Farncombe, Surrey, United Kingdom

Observed by
Trevor Murrells
Fri, 28 Mar 2025 13:00:00 +0000