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

+9 new sample locations added in the past 30 days

Lac Otis: Lac Otis

Saint Félix D'Otis, Quebec, Canada

Waterbody Type:
Lake
Last observed: October 4, 2025
Monitored since: October 4, 2025

Bowker Creek: 3.5 Oak Bay High

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: October 4, 2025
Monitored since: November 16, 2021

Bowker Creek: 3.4 Duck Ponds

Victoria, British Columbia, Canada

Waterbody Type:
Creek
Last observed: October 4, 2025
Monitored since: November 16, 2021

River Teise: Lamberhurst 2

Tunbridge Wells, England, United Kingdom

Waterbody Type:
River
Last observed: October 3, 2025
Monitored since: May 26, 2025

Bounds Green Brook: Hobart Corner

London, Enfield, United Kingdom

Waterbody Type:
Stream
Last observed: October 3, 2025
Monitored since: July 14, 2025

Lac Achigan: Fosse A1

Quebec, Canada

Waterbody Type:
Lake
Last observed: October 2, 2025
Monitored since: May 1, 2007

Raisin river: Bend near church

St. Andrews West, Ontario, Canada

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

Mississippi Lake: Ikwe Pt

Ontario, Canada

Waterbody Type:
Unknown
Last observed: October 1, 2025
Monitored since: August 16, 2022

River Teise: Lamberhurst 1

Tunbridge Wells, England, United Kingdom

Waterbody Type:
River
Last observed: October 1, 2025
Monitored since: May 26, 2025

Avon: Jetty

Warwick, Warwickshire, United Kingdom

Waterbody Type:
River
Last observed: October 1, 2025
Monitored since: October 11, 2024

Wellers bay Consecon: Wellers bay east shore

Consecon, Ontario, Canada

Waterbody Type:
Bay
Last observed: September 30, 2025
Monitored since: July 28, 2025

Lake Ont and Wellers bay: Mills cottages

Carrying Place, Ontario, Canada

Waterbody Type:
Channel
Last observed: September 30, 2025
Monitored since: June 30, 2025

River Wey: DragonFly

Waverley Borough, Surrey, United Kingdom

Waterbody Type:
River
Last observed: September 30, 2025
Monitored since: February 25, 2022

River Wey: Brigadier’s Bench

Frensham, Surrey, United Kingdom

Waterbody Type:
Unknown
Last observed: September 30, 2025
Monitored since: July 31, 2022

Grand River: Chandos Drive Entrance

Kitchener, Ontario, Canada

Waterbody Type:
River
Last observed: September 29, 2025
Monitored since: July 22, 2025

St. Lawrence River: End of Canal Rd.

Morrisburg, Ontario, Canada

Waterbody Type:
River
Last observed: September 29, 2025
Monitored since: July 27, 2025

St Mary’s River: Turtle Rock Preserve 2.0

Desbarats, Ontario, Canada

Waterbody Type:
River
Last observed: September 29, 2025
Monitored since: June 1, 2025

Rive Ditch: Birchwood Close

Addlestone, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: September 29, 2025
Monitored since: March 30, 2025

Brightsand Lake: Birch Cresant Evergreen Beach

Saskatchewan, Canada

Waterbody Type:
Lake
Last observed: September 29, 2025
Monitored since: May 28, 2022

Cranleigh Waters: Redcroft Walk / Horsham Road

Cranleigh, Surrey, United Kingdom

Waterbody Type:
Stream
Last observed: September 29, 2025
Monitored since: November 25, 2023

Cranleigh Waters: Run Common Bridge

Shamley Green, Surrey, United Kingdom

Waterbody Type:
Unknown
Last observed: September 29, 2025
Monitored since: November 26, 2023