Locations

Locations are places where people have tested before. Click on any location report to view water health trends at that spot over time. What's this?

8,239 locations

+0 new sample locations added in the past 30 days

Jamésie: Lac Madeleine

Quebec, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: July 8, 2023

Lac Decarifel: Decarifel

Quebec, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: May 30, 2021

River Wey : River Wey, Upstream of Bowers Lock

Burpham, Surrey, United Kingdom

Waterbody Type:
River
Last observed: July 27, 2025
Monitored since: March 19, 2023

Big Rideau Lake: Len's Cove Marina, Portland, on the Big Rideau

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: June 9, 2005

Big Rideau Lake : Portland Municipal Beach

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: July 21, 2021

Twelve Mile Creek: Upper Decew Falls

Thorold, Ontario, Canada

Waterbody Type:
Creek
Last observed: July 27, 2025
Monitored since: January 2, 2025

Big Rideau Lake: Portland, Bayview Marina at Big Rideau Lake

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: June 9, 2005

Big Rideau Lake: Ironwoods Bay

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: June 3, 2018

Ottawa River: Bristol - South of Flag Island

Quebec, Canada

Waterbody Type:
River
Last observed: July 27, 2025
Monitored since: May 28, 2016

Pond outlet: Frensham Little Pond outlet

Waverley Borough, Surrey, United Kingdom

Waterbody Type:
Pond
Last observed: July 27, 2025
Monitored since: October 29, 2023

Inlet stream: Frensham Little Pond inlet

Hindhead, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: July 27, 2025
Monitored since: October 29, 2023

Cranleigh Waters: Ashen Copse

Cranleigh, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: July 27, 2025
Monitored since: November 26, 2023

Meanwood Beck: A3

Leeds, Leeds, United Kingdom

Waterbody Type:
Stream
Last observed: July 27, 2025
Monitored since: October 27, 2024

Meanwood Beck: A2

Leeds, Leeds, United Kingdom

Waterbody Type:
Stream
Last observed: July 27, 2025
Monitored since: October 27, 2024

River Wey: Bridleway off to the side of Hammer House

Liphook, West Sussex, United Kingdom

Waterbody Type:
River
Last observed: July 27, 2025
Monitored since: May 30, 2022

Meanwood Beck: A1

Leeds, Leeds, United Kingdom

Waterbody Type:
Stream
Last observed: July 27, 2025
Monitored since: October 27, 2024

River Wey: Near Prince of Wales Pub

Hampshire, United Kingdom

Waterbody Type:
River
Last observed: July 27, 2025
Monitored since: March 19, 2023

Thessalon River: Rydal Bank

Ontario, Canada

Waterbody Type:
River
Last observed: July 27, 2025
Monitored since: June 28, 2023

Rouge River: Rouge River at Fairview Vista Park

Scarborough, Ontario, Canada

Waterbody Type:
River
Last observed: July 27, 2025
Monitored since: October 6, 2024

Lac: Lac des soeurs

Quebec, Canada

Waterbody Type:
Lake
Last observed: July 26, 2025
Monitored since: June 29, 2020

At. Lawrence River - Lake St. Lawrence : Guindon Boat Launch Bay

Long Sault, Ontario, Canada

Waterbody Type:
Bay
Last observed: July 26, 2025
Monitored since: June 22, 2025