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?

7,975 locations

+66 new sample locations added in the past 30 days

Costons Upper Northolt: Costons Brook Northolt

London, Ealing, United Kingdom

Waterbody Type:
Stream
Last observed: November 26, 2024
Monitored since: February 15, 2024
3 Observations
0 Issues

Upper Costons Northolt West: Upper Costons Northolt Green West

London, Ealing, United Kingdom

Waterbody Type:
Stream
Last observed: November 26, 2024
Monitored since: February 15, 2024
3 Observations
0 Issues

Blackberry creek: 3710

Yorkville, Illinois, United States

Waterbody Type:
Creek
Last observed: November 25, 2024
Monitored since: November 25, 2024
1 Observations
0 Issues

Sangamon River: Sangamon River at Reas Bridge

Decatur, Illinois, United States

Waterbody Type:
River
Last observed: November 25, 2024
Monitored since: November 22, 2022
10 Observations
0 Issues

Milne rouge lake: Markham

Markham, Ontario, Canada

Waterbody Type:
Lake
Last observed: November 25, 2024
Monitored since: September 26, 2020
4 Observations
0 Issues

Rouge River: Rouge River at Fairview Vista Park

Scarborough, Ontario, Canada

Waterbody Type:
River
Last observed: November 25, 2024
Monitored since: October 6, 2024
3 Observations
0 Issues

Victoria Harbour: Point Ellice Bridge beach

Victoria, British Columbia, Canada

Waterbody Type:
Estuary
Last observed: November 24, 2024
Monitored since: November 24, 2024
1 Observations
0 Issues

creek: MA101

Markham, Ontario, Canada

Waterbody Type:
Creek
Last observed: November 24, 2024
Monitored since: September 7, 2024
4 Observations
0 Issues

Stream: MA102

Markham, Ontario, Canada

Waterbody Type:
Stream
Last observed: November 24, 2024
Monitored since: October 7, 2024
3 Observations
0 Issues

River: Rouge River

Markham, Ontario, Canada

Waterbody Type:
River
Last observed: November 24, 2024
Monitored since: October 7, 2024
3 Observations
0 Issues

Lake Simcoe: East Holland River at Aurora Community Arboretum

Aurora, Ontario, Canada

Waterbody Type:
Creek
Last observed: November 24, 2024
Monitored since: September 29, 2024
3 Observations
0 Issues

Tannery Creek: St. Andrews on the Hill

Aurora, Ontario, Canada

Waterbody Type:
Creek
Last observed: November 24, 2024
Monitored since: September 29, 2024
3 Observations
0 Issues

Hoe Stream: Hoe Stream in Mayford Meadows

Woking, Surrey, United Kingdom

Waterbody Type:
Unknown
Last observed: November 24, 2024
Monitored since: July 30, 2023
5 Observations
0 Issues

South Nation River: Dock

Ontario, Canada

Waterbody Type:
River
Last observed: November 23, 2024
Monitored since: May 28, 2023
13 Observations
0 Issues

Ottawa River : Ottawa River : Parc James & Marie Fox

Thurso, Ontario, Canada

Waterbody Type:
River
Last observed: November 23, 2024
Monitored since: May 28, 2023
12 Observations
0 Issues

Madge Lake: Jubilee Park dock

Saskatchewan, Canada

Waterbody Type:
Lake
Last observed: November 22, 2024
Monitored since: May 27, 2022
17 Observations
0 Issues

QC-520460: QC-520460

Quebec, Canada

Waterbody Type:
Stream
Last observed: November 22, 2024
Monitored since: August 30, 2024
1 Observations
0 Issues

QC-2776465: QC-2776465

Quebec, Canada

Waterbody Type:
Stream
Last observed: November 22, 2024
Monitored since: September 10, 2024
1 Observations
0 Issues

QC-456626: QC-456626

Quebec, Canada

Waterbody Type:
Stream
Last observed: November 22, 2024
Monitored since: August 25, 2024
1 Observations
0 Issues

St.Mary’s River: Pine Island

Ontario, Canada

Waterbody Type:
Channel
Last observed: November 22, 2024
Monitored since: July 31, 2023
8 Observations
0 Issues

River Wey: Weir at Waverley Abbey

Farnham, Surrey, United Kingdom

Waterbody Type:
River
Last observed: November 22, 2024
Monitored since: November 21, 2024
2 Observations
0 Issues