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?

8,238 locations

+8 new sample locations added in the past 30 days

Creek ? to right of Clearville boat ramp Lake Erie( directly behind pavillion in the centre walk straight to tree at creek): Clear Creek

Ontario, Canada

Waterbody Type:
Creek
Last observed: July 27, 2025
Monitored since: May 28, 2023

Mundy Lake: Mundy Park

Coquitlam, British Columbia, Canada

Waterbody Type:
Lake
Last observed: July 27, 2025
Monitored since: May 28, 2023

Lake Ontario: Small's Creek

Toronto, Ontario, Canada

Waterbody Type:
Creek
Last observed: July 27, 2025
Monitored since: September 15, 2024

Port Glascow (creek just down hill to right of marina on Grey line: 16 mile creek

Ontario, Canada

Waterbody Type:
Creek
Last observed: July 27, 2025
Monitored since: May 28, 2023

Blind Creek : Blind Creek Bridge

Yukon, Canada

Waterbody Type:
Creek
Last observed: July 27, 2025
Monitored since: June 30, 2019

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

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

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: 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