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

+7 new sample locations added in the past 30 days

Cougar Creek: Cougar Creek 5

Surrey, British Columbia, Canada

Waterbody Type:
Creek
Last observed: July 3, 2025
Monitored since: July 3, 2025

Outlet River: Outlet River at Bridge on County Rd 18

Ontario, Canada

Waterbody Type:
River
Last observed: July 2, 2025
Monitored since: June 18, 2019

Tributary entering SE End of East Lake: Cherry Valley Lions Memorial Park Boat Launch Dock

Cherry Valley, Ontario, Canada

Waterbody Type:
Creek
Last observed: July 2, 2025
Monitored since: April 28, 2017

Lac du Brochet: BR1

Quebec, Canada

Waterbody Type:
Lake
Last observed: July 2, 2025
Monitored since: June 4, 2024

Big Rideau Lake: Klautz Pt

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 2, 2025
Monitored since: June 17, 2018

Big Rideau Lake: Little Lake - 2

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 2, 2025
Monitored since: July 8, 2019

St. Lawrence River: OPG Bay

Cornwall, Ontario, Canada

Waterbody Type:
Bay
Last observed: July 1, 2025
Monitored since: July 1, 2025

Big Rideau: Granary Cottage

Portland, Ontario, Canada

Waterbody Type:
Lake
Last observed: July 1, 2025
Monitored since: May 24, 2025

White Oak Creek: White Oak Creek

Jackson, Mississippi, United States

Waterbody Type:
Creek
Last observed: July 1, 2025
Monitored since: May 23, 2024

River Wey: Downstream of Frensham Mill

Frensham, Surrey, United Kingdom

Waterbody Type:
River
Last observed: July 1, 2025
Monitored since: July 11, 2022

River Wey: Smithy Lane

Dockenfield, Hampshire, United Kingdom

Waterbody Type:
River
Last observed: July 1, 2025
Monitored since: March 9, 2022

Niagara River: Queen's Royal Park Beach

Ontario, Canada

Waterbody Type:
River
Last observed: July 1, 2025
Monitored since: July 1, 2025

Grand River: Private dock near Tuscarora Road and 6th Line

Ohsweken, Ontario, Canada

Waterbody Type:
River
Last observed: June 30, 2025
Monitored since: June 30, 2025

Lac Huron: Sauble Beach

Sauble Beach, Ontario, Canada

Waterbody Type:
Lake
Last observed: June 30, 2025
Monitored since: June 30, 2025

Niagara River: Dufferin Islands Nature Area

Ontario, Canada

Waterbody Type:
River
Last observed: June 30, 2025
Monitored since: December 30, 2024

Katepwa Lake Saskatchewan: Katepwa Lake Saskatchewan

Saskatchewan, Canada

Waterbody Type:
Lake
Last observed: June 30, 2025
Monitored since: June 30, 2025

Humber River: Humber River at Magwood Sanctuary

Etobicoke, Ontario, Canada

Waterbody Type:
River
Last observed: June 30, 2025
Monitored since: April 25, 2021

Lake Ontario: Ryerson Park

Niagara On The Lake, Ontario, Canada

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

Restored Wastewater Treatment: Niagara College Wetland

Niagara On The Lake, Ontario, Canada

Waterbody Type:
Wetland
Last observed: June 30, 2025
Monitored since: May 27, 2025

Tame: Elford Walled Garden

Lichfield District, Staffordshire, United Kingdom

Waterbody Type:
River
Last observed: June 30, 2025
Monitored since: December 29, 2024

Lake Erie: Lorraine Bay East

Ontario, Canada

Waterbody Type:
Lake
Last observed: June 30, 2025
Monitored since: September 1, 2020