/-0.303337,51.584207,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Wealdstone Brook Woodcock Park Mural Bridge
Wealdstone Brook, London
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187 Datapoints
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9 Observations
- Monitored since: 31 August 2025
- Last observation on: 13 July 2026
- Data collector: Alistair Young
Latest water quality data added
647,046 datapoints at 9,279 locations
+665 new locations added in the last 30 days
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View trends at this location
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/-74.698191,45.016971,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationÉcole secondaire publique L'Héritage
St. Lawrence River,
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335 Datapoints
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25 Observations
- Monitored since: 30 July 2024
- Last observation on: 13 July 2026
- Data collector: de Haan Family
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/-76.210184,45.012693,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFlintoff Bay
Mississippi Lake, Perth
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483 Datapoints
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33 Observations
- Monitored since: 01 July 2024
- Last observation on: 13 July 2026
- Data collector: Dave Robertson
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/-1.053336,51.271694,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBartons Mill
River Loddon, Basingstoke
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194 Datapoints
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15 Observations
- Monitored since: 15 January 2025
- Last observation on: 13 July 2026
- Data collector: Josh Bowes
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/-2.585256,53.758995,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBlue Slate Farm - Above CSO / Upper
River Darwen, Preston
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213 Datapoints
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10 Observations
- Monitored since: 22 February 2026
- Last observation on: 13 July 2026
- Data collector: Michael Rhodes
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/-2.614027,53.774797,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBezza Brook, Dean Lane
Bezza Brook, Preston
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27 Datapoints
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2 Observations
- Monitored since: 03 June 2026
- Last observation on: 13 July 2026
- Data collector: Michael Rhodes
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/-2.637013,53.765953,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRiver Ribble, Brockholes Quarry
River Ribble, Preston
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66 Datapoints
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4 Observations
- Monitored since: 16 February 2025
- Last observation on: 13 July 2026
- Data collector: Michael Rhodes
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/-76.184921,45.045818,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMy home
Mississippi lake, Carleton Place
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173 Datapoints
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14 Observations
- Monitored since: 27 June 2025
- Last observation on: 12 July 2026
- Data collector: Lise Boulay
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/-84.392966,46.71839,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGR #6 - Goulais Mission Cemetery
Goulais River, Goulais River
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314 Datapoints
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9 Observations
- Monitored since: 17 May 2026
- Last observation on: 12 July 2026
- Data collector: Jenn C
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/-84.349042,46.731011,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGR #5 - Bridge on Highway 17
Goulais River, Goulais River
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326 Datapoints
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9 Observations
- Monitored since: 17 May 2026
- Last observation on: 12 July 2026
- Data collector: Jenn C
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/-84.285064,46.717384,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGR #4 - Turmaine Road at Water Survey of Canada Hydrometric Station
Goulais River, Goulais River
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306 Datapoints
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9 Observations
- Monitored since: 17 May 2026
- Last observation on: 12 July 2026
- Data collector: Jenn C
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/-84.089248,46.746845,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGR #3 - PRIVATE ACCESS off on Highway 556
Goulais River, Searchmont
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331 Datapoints
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9 Observations
- Monitored since: 17 May 2026
- Last observation on: 12 July 2026
- Data collector: Jenn C
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/-84.050372,46.775824,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGR #2 - Searchmont Bridge on Highway 532
Goulais River , Searchmont
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355 Datapoints
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9 Observations
- Monitored since: 17 May 2026
- Last observation on: 12 July 2026
- Data collector: Jenn C
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/-83.971686,46.855401,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this location-
334 Datapoints
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9 Observations
- Monitored since: 17 May 2026
- Last observation on: 12 July 2026
- Data collector: Jenn C
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/-80.009093,44.705236,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationAt the entrance at concession 11
Spring run off Pond/creek, Tiny
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31 Datapoints
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3 Observations
- Monitored since: 15 June 2025
- Last observation on: 12 July 2026
- Data collector: Cawaja Beach Georgian Bay
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/-60.943737,46.189602,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMiddle River
Middle River, Baddeck
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521 Datapoints
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38 Observations
- Monitored since: 15 May 2025
- Last observation on: 12 July 2026
- Data collector: Sharon Morrow
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/0.016257,51.621835,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationNewgate Street
The Ching, Buckhurst Hill
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889 Datapoints
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91 Observations
- Monitored since: 19 July 2024
- Last observation on: 12 July 2026
- Data collector: Martin Curry
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/0.019402,51.625457,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationD/S Whitehall Rd
The Ching, Buckhurst Hill
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917 Datapoints
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93 Observations
- Monitored since: 19 July 2024
- Last observation on: 12 July 2026
- Data collector: Martin Curry
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/0.019922,51.626392,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationWhitehall Outfalls
The Ching, Buckhurst Hill
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923 Datapoints
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92 Observations
- Monitored since: 19 July 2024
- Last observation on: 12 July 2026
- Data collector: Martin Curry
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/-0.292823,51.581297,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationImperial Way Bridge - Lindsay Drive Roundabout
Wealdstone Brook, London
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346 Datapoints
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20 Observations
- Monitored since: 07 April 2025
- Last observation on: 12 July 2026
- Data collector: Alistair Young
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