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?

7,913 locations

+52 new sample locations added in the past 30 days

Creek under Fairmount Ave: Creek under Fairmount Ave, east side of bridge

Downers Grove, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: November 19, 2024

Clear Creek: Clear Creek, South of E Canyon Rd bridge (downstream)

Apple River, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: November 30, 2024

West Ridge Nature Park Pond- North: West Ridge Nature Park Pond- North

Chicago, Illinois, United States

Waterbody Type:
Pond
Last observed: March 28, 2025
Monitored since: December 30, 2024

Loon Lake: Loon Lake West Shore

Ontario, Canada

Waterbody Type:
Lake
Last observed: March 28, 2025
Monitored since: June 17, 2023

Section of Black Creek: Bridge over Black Creek on Old Milford Rd

Ontario, Canada

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: March 30, 2019

Blackberry Creek at Barnes Forest Preserve: Blackberry Creek at Barnes Forest Preserve

Aurora, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: December 28, 2023

East end of Milford Millpond on Black River : East side of Hamlet of Milford K0K2P0

Milford, Ontario, Canada

Waterbody Type:
River
Last observed: March 28, 2025
Monitored since: March 26, 2017

Martindale Pond: Henley Island Boathouse

St. Catharines, Ontario, Canada

Waterbody Type:
Pond
Last observed: March 28, 2025
Monitored since: January 27, 2025

Milford Millpond: West end of Hamlet of Milford at furthest west end of Millpond

Milford, Ontario, Canada

Waterbody Type:
Pond
Last observed: March 28, 2025
Monitored since: March 26, 2017

Woods Creek at Brookside Pedestrian Bridge: Woods Creek at Brookside Pedestrian Bridge

Algonquin, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: December 20, 2024

Pond at McCauley Mountain Conservation Area: Birdhouse City Pond

Picton, Ontario, Canada

Waterbody Type:
Pond
Last observed: March 28, 2025
Monitored since: May 29, 2019

Picton Harbour on Lake Ontario: Picton Harbour at Mouth of Marsh Creek

Picton, Ontario, Canada

Waterbody Type:
Lake
Last observed: March 28, 2025
Monitored since: July 4, 2018

Wey Natural River: Outflow from GSTW into Wey Natural River: Trunley Heath Road

Godalming, Surrey, United Kingdom

Waterbody Type:
River
Last observed: March 28, 2025
Monitored since: July 29, 2023

Dixie Creek at Gaslight Dr: Dixie Creek at Gaslight Dr

Algonquin, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: December 20, 2024

Ratt Creek at Hanson Rd: Ratt Creek at Hanson Rd

Algonquin, Illinois, United States

Waterbody Type:
Creek
Last observed: March 28, 2025
Monitored since: December 20, 2024

Unstead Wetland Reserve: Outlet into Pond Wood

Guildford Borough, Surrey, United Kingdom

Waterbody Type:
Pond
Last observed: March 28, 2025
Monitored since: October 27, 2023

DuPage River: Old Renwick Road Bridge, Plainfield Park District

Plainfield, Illinois, United States

Waterbody Type:
River
Last observed: March 28, 2025
Monitored since: November 29, 2024

Welland River: Welland River, River Rd, EC Brown Conservation Area

Ontario, Canada

Waterbody Type:
River
Last observed: March 28, 2025
Monitored since: December 29, 2024

Unstead Wetland Nature Reserve: Small pool on UWNR near to GSTW outflow, east side of Trunley Health Road

Godalming, Surrey, United Kingdom

Waterbody Type:
Unknown
Last observed: March 28, 2025
Monitored since: February 21, 2025

Welland River, River Rd Parkette: Welland River, River Rd Parkette

Welland, Ontario, Canada

Waterbody Type:
River
Last observed: March 28, 2025
Monitored since: December 29, 2024

Natural Wey River (Unstead): Natural Wey River at Unstead close to bridge (Northside)

Godalming, Surrey, United Kingdom

Waterbody Type:
River
Last observed: March 28, 2025
Monitored since: August 25, 2023