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

Gallions Lake : Gallions Lake

London, Greenwich, United Kingdom

Waterbody Type:
Lake
Last observed: July 4, 2025
Monitored since: April 25, 2024

Gallions Lake 1: Gallions Lake 1

London, Greenwich, United Kingdom

Waterbody Type:
Lake
Last observed: July 4, 2025
Monitored since: January 25, 2023

Amaguadees Pond: Amaguadees Pond - Swampy Bridge

Eskasoni, Nova Scotia, Canada

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

Bras d'Or Lake: Castle Bay Beach

Castle Bay, Nova Scotia, Canada

Waterbody Type:
Estuary
Last observed: July 3, 2025
Monitored since: May 29, 2025

Lake Ontario at Soup Harbour: Point Petre Provincial Wildlife Area

Ontario, Canada

Waterbody Type:
Lake
Last observed: July 3, 2025
Monitored since: May 16, 2023

Maitland River: Blyth Brook

Goderich, Ontario, Canada

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

Dagenham Brook : Dagenham Brook Bridge Rd D/S

London, Waltham Forest, United Kingdom

Waterbody Type:
Stream
Last observed: July 3, 2025
Monitored since: April 29, 2025

Thames: Thames backwater

Staines Upon Thames, England, United Kingdom

Waterbody Type:
Unknown
Last observed: July 3, 2025
Monitored since: May 5, 2025

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