/-73.560144,45.461244,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Les Roches
Fleuve Saint-Laurent, Verdun
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15 Datapoints
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1 Observations
- Monitored since: 08 June 2026
- Last observation on: 08 June 2026
- Data collector: Laura Gilbert
Latest water quality data added
624,192 datapoints at 9,631 locations
+678 new locations added in the last 30 days
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View trends at this location
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/-76.171861,45.088571,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationAberdeen Island
Mississippi Lake, Carleton Place
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14 Datapoints
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1 Observations
- Monitored since: 08 June 2026
- Last observation on: 08 June 2026
- Data collector: Jane Smith
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/-77.616232,45.368778,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationByers Creek swimming hole
Byers (Rockingham) Creek, Combermere
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78 Datapoints
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6 Observations
- Monitored since: 24 June 2024
- Last observation on: 08 June 2026
- Data collector: Hannah Lynch
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/-0.060253,51.58119,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationUpstream of Markfield Park (Stonebridge Brook) CSO
River Lea, London
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256 Datapoints
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20 Observations
- Monitored since: 29 June 2024
- Last observation on: 08 June 2026
- Data collector: Philly Nicholls
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/-0.060575,51.58111,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMarkfield Park (Stonebridge Brook) CSO
River Lea, London
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260 Datapoints
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20 Observations
- Monitored since: 29 June 2024
- Last observation on: 08 June 2026
- Data collector: Philly Nicholls
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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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406 Datapoints
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28 Observations
- Monitored since: 01 July 2024
- Last observation on: 08 June 2026
- Data collector: Dave Robertson
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/-0.085177,50.907931,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSCN Middleton
Plumpton Stream, Hassocks
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57 Datapoints
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3 Observations
- Monitored since: 09 April 2026
- Last observation on: 08 June 2026
- Data collector: Jo Owens
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/-84.392966,46.71839,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGoulais Mission Cemetery
Goulais River, Goulais River
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143 Datapoints
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4 Observations
- Monitored since: 17 May 2026
- Last observation on: 07 June 2026
- Data collector: Jenn C
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/-84.348898,46.730616,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBridge on Highway 17
Goulais River, Goulais River
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152 Datapoints
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4 Observations
- Monitored since: 17 May 2026
- Last observation on: 07 June 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 locationTurmaine Road
Goulais River, Goulais River
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135 Datapoints
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4 Observations
- Monitored since: 17 May 2026
- Last observation on: 07 June 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 locationPRIVATE ACCESS off on Highway 556
Goulais River, Searchmont
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142 Datapoints
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4 Observations
- Monitored since: 17 May 2026
- Last observation on: 07 June 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 locationSearchmont Bridge on Highway 532
Goulais River , Searchmont
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157 Datapoints
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4 Observations
- Monitored since: 17 May 2026
- Last observation on: 07 June 2026
- Data collector: Jenn C
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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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837 Datapoints
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87 Observations
- Monitored since: 19 July 2024
- Last observation on: 07 June 2026
- Data collector: Kat Kavanagh
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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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866 Datapoints
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89 Observations
- Monitored since: 19 July 2024
- Last observation on: 07 June 2026
- Data collector: Kat Kavanagh
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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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871 Datapoints
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88 Observations
- Monitored since: 19 July 2024
- Last observation on: 07 June 2026
- Data collector: Kat Kavanagh
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/-74.428747,45.161509,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationAmanndale Bay
St-Lawrence River, Bainsville
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74 Datapoints
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3 Observations
- Monitored since: 23 May 2026
- Last observation on: 07 June 2026
- Data collector: Stephanie Jeaurond
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/-80.461994,43.417605,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGrand River Watershed
Schneider Creek, Kitchener
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41 Datapoints
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4 Observations
- Monitored since: 23 June 2023
- Last observation on: 07 June 2026
- Data collector: Diane Kilby
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/-83.971686,46.855401,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGoulais Chutes
Goulais River
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150 Datapoints
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4 Observations
- Monitored since: 17 May 2026
- Last observation on: 07 June 2026
- Data collector: Jenn C
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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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457 Datapoints
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33 Observations
- Monitored since: 15 May 2025
- Last observation on: 07 June 2026
- Data collector: Sharon Morrow
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/-83.844338,46.372517,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationCaribou Lake - off boat ramp
Caribou Lake, Bruce Mines
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246 Datapoints
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23 Observations
- Monitored since: 13 June 2022
- Last observation on: 07 June 2026
- Data collector: Janice Fairfax
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