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?

66,519 observations

+95 new observations added in the past 30 days

Whitefish Island (St. Mary's River) : St Marys River

Sault Ste. Marie, Ontario, Canada

Observed by
Community Volunteers
Thu, 31 Jul 2025 14:50:00 -0400

Root River Hwy 17E : Root River

Ontario, Canada

Observed by
Community Volunteers
Thu, 31 Jul 2025 13:20:00 -0400

Dacey Rd at St. Marys River : Storm Water

Ontario, Canada

Observed by
Community Volunteers
Thu, 31 Jul 2025 12:50:00 -0400

Next to Culvert : Boardwalk Pond

Baddeck, Nova Scotia, Canada

Observed by
Emily MacDonald
Thu, 31 Jul 2025 13:40:00 -0300

Peace Park Beach : Lake Huron

Thessalon, Ontario, Canada

Observed by
Huron North Community Volunteers
Thu, 31 Jul 2025 12:30:00 -0400

Behind Baddeck Building Supplies : Boardwalk Pond

Baddeck, Nova Scotia, Canada

Observed by
Emily MacDonald
Thu, 31 Jul 2025 13:15:00 -0300

Jamie Bay sampling : Big Basswood Lake

Ontario, Canada

Observed by
Paul and Tania Hazlett
Thu, 31 Jul 2025 12:00:00 -0400

Westbrook Rd : Pearl River

Brandon, Mississippi, United States

Observed by
Will McDearman
Thu, 31 Jul 2025 11:00:00 -0500

Purple Creek : Purple Creek

Jackson, Mississippi, United States

Observed by
Will McDearman
Thu, 31 Jul 2025 10:30:00 -0500

Vincent Road : The Ching

London, Waltham Forest, United Kingdom

Observed by
Jackie Switzer
Thu, 31 Jul 2025 16:26:00 +0100

Lac Bélisle- Centre plus profond : Lac Bélisle

Lac Des Plages, Quebec, Canada

Observed by
Richard Beaudry
Thu, 31 Jul 2025 11:00:00 -0400

Kidston Island Western Pond : Kidston Island western pond

Baddeck, Nova Scotia, Canada

Observed by
Emily MacDonald
Thu, 31 Jul 2025 11:50:00 -0300

Parc Marcel-Fortier : Rivière Richelieu

Chambly, Quebec, Canada

Observed by
Coralie Godon
Thu, 31 Jul 2025 10:45:00 -0400

North side of the Point, near Walker pathway : Spring runoff Pond

Tiny, Ontario, Canada

Observed by
Cawaja Beach Georgian Bay
Thu, 31 Jul 2025 10:30:00 -0400

Cawaja Beach : Nottawaga Bay

Tiny, Ontario, Canada

Observed by
Cawaja Beach Georgian Bay
Thu, 31 Jul 2025 10:30:00 -0400

At the entrance at concession 11 : Spring run off Pond/creek

Tiny, Ontario, Canada

Observed by
Cawaja Beach Georgian Bay
Thu, 31 Jul 2025 10:30:00 -0400

Cawaja Beach in front of largest pond : Nottawaga Bay

Tiny, Ontario, Canada

Observed by
Cawaja Beach Georgian Bay
Thu, 31 Jul 2025 10:30:00 -0400

Kidston Island Western Beach : Bras d'Or Lake

Baddeck, Nova Scotia, Canada

Observed by
Emily MacDonald
Thu, 31 Jul 2025 11:26:00 -0300