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?

62,575 observations

+679 new observations added in the past 30 days

Main Street : Crystal Creek

Algonquin, Illinois, United States

Observed by
JoAnn Schindler
Thu, 08 May 2025 19:39:45 +0000

Dam 62 : Fox River

Algonquin, Illinois, United States

Observed by
JoAnn Schindler
Thu, 08 May 2025 19:12:09 +0000

Vincent Road : The Ching

London, Waltham Forest, United Kingdom

Observed by
Jackie Switzer
Thu, 08 May 2025 17:25:00 +0100

Bow River Pedestrian Bridge : Bow River

Banff, Alberta, Canada

Observed by
Praise Osifo
Thu, 08 May 2025 10:00:00 -0600

West Lagoon - West/Main Deck : Blakeburn Lagoons

Port Coquitlam, British Columbia, Canada

Observed by
John Saremba
Thu, 08 May 2025 08:57:31 -0700

East Lagoon - South Deck : Blakeburn Lagoons

Port Coquitlam, British Columbia, Canada

Observed by
John Saremba
Thu, 08 May 2025 08:17:40 -0700

Ewing Park II Sugar Creek Monitoring Site : Sugar Creek

Bloomington, Illinois, United States

Observed by
Katie Vogler
Thu, 08 May 2025 10:10:00 -0500

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

Normal, Illinois, United States

Observed by
Katie Vogler
Thu, 08 May 2025 10:00:00 -0500

Fairview Park Sugar Creek Stewards Monitoring Site : Sugar Creek

Normal, Illinois, United States

Observed by
Katie Vogler
Thu, 08 May 2025 09:45:00 -0500

Fort Chambly : Rivière Richelieu

Chambly, Quebec, Canada

Observed by
Coralie Godon
Thu, 08 May 2025 08:35:00 -0400

Berrylands Bridge : Hogsmill

London, Kingston upon Thames, United Kingdom

Observed by
Phil Renton
Thu, 08 May 2025 10:15:00 +0100

Downstream of the bridge : West Humber River

Etobicoke, Ontario, Canada

Observed by
Jenny Hill
Wed, 07 May 2025 16:09:45 -0400

Mill Creek at Campton FP : Mill Creek

Saint Charles, Illinois, United States

Observed by
Nick Longo
Wed, 07 May 2025 13:15:00 -0500

East Branch DuPage River at Morton Arb : East Branch DuPage River

Downers Grove, Illinois, United States

Observed by
Lisa Warren
Wed, 07 May 2025 12:07:00 -0500

Lacey Creek at Morton Arboretum : Lacey Creek

Downers Grove, Illinois, United States

Observed by
Lisa Warren
Wed, 07 May 2025 11:55:00 -0500

Tom & Deborah Beese : Suddene stream, below sewage treatment

Kennet District, Wiltshire, United Kingdom

Observed by
Tom Beese
Tue, 06 May 2025 19:58:00 +0100

Quibble Creek Creekside : Quibble Creek

New Westminster, British Columbia, Canada

Observed by
Simon Kissinger
Tue, 06 May 2025 10:30:00 -0700

Port Colborne at the entrance from Lake Erie : Welland Canal

Port Colborne, Ontario, Canada

Observed by
Gabrielle Parent-Doliner
Tue, 06 May 2025 13:11:43 -0400

Hill Ave Bridge : East Branch DuPage River

Lombard, Illinois, United States

Observed by
Joe Wywrot
Tue, 06 May 2025 11:50:12 -0500

Onigaming Water Treatment Plant : Crow Lake

Ontario, Canada

Observed by
Alex Hurka
Tue, 06 May 2025 09:53:00 -0500