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

+691 new observations added in the past 30 days

Mundy Park : Lost Lake

Coquitlam, British Columbia, Canada

Observed by
C E Thomson
Thu, 03 Apr 2025 11:00:00 -0700

Bayside Quarry east Pond : Bayside Quarry east Pond

Rednersville, Ontario, Canada

Observed by
Greg Stephens
Thu, 03 Apr 2025 13:30:00 -0400

Bayside Quarry east Pond : Bayside Quarry east Pond

Rednersville, Ontario, Canada

Observed by
Greg Stephens
Thu, 03 Apr 2025 13:30:00 -0400

Bayside Quarry east Pond : Bayside Quarry east Pond

Rednersville, Ontario, Canada

Observed by
Greg Stephens
Thu, 03 Apr 2025 13:10:00 -0400

Bayside Quarry east Pond : Bayside Quarry east Pond

Rednersville, Ontario, Canada

Observed by
Greg Stephens
Thu, 03 Apr 2025 13:10:00 -0400

Bayside Quarry east Pond : Bayside Quarry east Pond

Rednersville, Ontario, Canada

Observed by
Greg Stephens
Thu, 03 Apr 2025 13:07:00 -0400

River Park Boathouse : Chicago River

Chicago, Illinois, United States

Observed by
Susanna Lang
Thu, 03 Apr 2025 17:03:00 +0000

Lyndhurst Park (downstream of culvert) : Burnt Oak Brook

London, Barnet, United Kingdom

Observed by
Richard Kearns
Thu, 03 Apr 2025 16:30:00 +0100

River Lea diversion : River Lea diversion

London, Waltham Forest, United Kingdom

Observed by
Darren Fogg
Thu, 03 Apr 2025 16:23:00 +0100

Saipem S3 - Chapel Mill Road : Hogsmill

London, Kingston upon Thames, United Kingdom

Observed by
Cristina Marras
Thu, 03 Apr 2025 15:53:00 +0100

Simmonds Mead Open Space : Burnt Oak Brook

London, Barnet, United Kingdom

Observed by
Richard Kearns
Thu, 03 Apr 2025 15:31:00 +0100

Creek Bend Pond : Pond at Creek Bend Nature Center

Saint Charles, Illinois, United States

Observed by
Lisa O'Brien
Thu, 03 Apr 2025 09:19:00 -0500

Bayside Quarry east Pond : Bayside Quarry east Pond

Rednersville, Ontario, Canada

Observed by
Greg Stephens
Thu, 03 Apr 2025 09:53:00 -0400

Saipem S1 - Kingston Chamber of Commerce : Hogsmill

London, Kingston upon Thames, United Kingdom

Observed by
Nigel Swinnerton
Thu, 03 Apr 2025 13:44:00 +0100

Alton Flood Meadows, Downstream of footbridge : North Wey at Alton

Alton, Hampshire, United Kingdom

Observed by
Judith Ineson
Thu, 03 Apr 2025 11:20:00 +0000

BORDON WASTEWATER TREATMENT WORKS : South Wey (Bordon to River Slea confluence)

Bordon, Hampshire, United Kingdom

Observed by
Deadwater Valley Trust Ranger
Thu, 03 Apr 2025 10:31:00 +0000

BORDON STW : South Wey (Bordon to River Slea confluence)

Bordon, Hampshire, United Kingdom

Observed by
Deadwater Valley Trust Ranger
Thu, 03 Apr 2025 10:13:00 +0000

WEY ( SOUTH ) ABOVE BORDON STW : South Wey (Bordon to River Slea confluence)

Bordon, Hampshire, United Kingdom

Observed by
Deadwater Valley Trust Ranger
Thu, 03 Apr 2025 09:51:00 +0000

DEADWATER AT CHALET HILL BRIDGE : Hollywater and Deadwater at Bordon

Bordon, Hampshire, United Kingdom

Observed by
Deadwater Valley Trust Ranger
Thu, 03 Apr 2025 09:24:00 +0000

Lake St. Clair : Lake St. Clair

Ontario, Canada

Observed by
Isabelle Kolodziej
Wed, 02 Apr 2025 20:11:00 -0400