/-79.048127,43.034023,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Weaver Road Bridge
Ussher's Creek / Street's Creek / Union Marsh Drain, Niagara Falls
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83 Datapoints
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3 Observations
- Monitored since: 28 February 2026
- Last observation on: 18 July 2026
- Data collector: Sarah Ward
Latest water quality data added
649,454 datapoints at 9,294 locations
+681 new locations added in the last 30 days
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View trends at this location
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/-89.526472,32.707,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHighway 35 Bridge
Pearl River, Carthage
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3,154 Datapoints
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224 Observations
- Monitored since: 03 October 2018
- Last observation on: 17 July 2026
- Data collector: William W Mitchell
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/-79.083031,43.048338,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationUnder Stanley Bridge
Welland River, Niagara Falls
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37 Datapoints
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1 Observations
- Monitored since: 17 July 2026
- Last observation on: 17 July 2026
- Data collector: Sarah Ward
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/-79.082586,43.048407,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationWM - Industrial effluent to Welland River Chippawa Parkway and Stanley Avenue
Welland River, Niagara Falls
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59 Datapoints
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2 Observations
- Monitored since: 03 May 2026
- Last observation on: 17 July 2026
- Data collector: Sarah Ward
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/-117.343249,47.675964,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDownstream of Upriver Dam to Greene Street Bridge
Spokane River, Spokane
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42 Datapoints
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2 Observations
- Monitored since: 12 July 2026
- Last observation on: 17 July 2026
- Data collector: Marc Fryt
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/-102.343482,50.541061,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationEnd of dock
Round Lake,
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133 Datapoints
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12 Observations
- Monitored since: 04 June 2023
- Last observation on: 17 July 2026
- Data collector: Delmar Deren
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/-79.091075,43.048969,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationIndustrial Effluent and Stormwater Runnoff to Welland River from Stanley Buisness Park on Chippawa Pkwy
Welland River, Niagara Falls
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64 Datapoints
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2 Observations
- Monitored since: 03 May 2026
- Last observation on: 17 July 2026
- Data collector: Sarah Ward
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/-79.121491,43.046416,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationOakwood Drive QEW Underpass
Welland River, Niagara Falls
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66 Datapoints
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2 Observations
- Monitored since: 03 May 2026
- Last observation on: 17 July 2026
- Data collector: Sarah Ward
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/-1.992297,53.894496,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSutton Beck
Eastburn Beck, Keighley
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48 Datapoints
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2 Observations
- Monitored since: 02 May 2026
- Last observation on: 17 July 2026
- Data collector: Sam Riley-Gunn
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/-83.88745,46.338,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationStobie Creek Old Hwy Bridge
Stobie Creek, Desbarats
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36 Datapoints
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3 Observations
- Monitored since: 21 May 2026
- Last observation on: 17 July 2026
- Data collector: Janice Fairfax
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/-83.88576,46.33473,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationStobie Creek Fishing Spot
Stobie Creek, Tacheng Diqu
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35 Datapoints
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3 Observations
- Monitored since: 21 May 2026
- Last observation on: 17 July 2026
- Data collector: Janice Fairfax
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/-83.884106,46.332328,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationStobie Creek Mouth
Stobie Creek, Bruce Mines
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35 Datapoints
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3 Observations
- Monitored since: 21 May 2026
- Last observation on: 17 July 2026
- Data collector: Janice Fairfax
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/-83.880559,46.315891,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationArchibald Dock
Lake Huron, Bruce Mines
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370 Datapoints
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27 Observations
- Monitored since: 30 May 2022
- Last observation on: 17 July 2026
- Data collector: Corinne Wilkerson
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/-0.265971,50.906611,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSCN Woods Mill
Woods Mill Stream, Henfield
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95 Datapoints
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5 Observations
- Monitored since: 27 March 2026
- Last observation on: 17 July 2026
- Data collector: Jo Owens
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/-0.173204,51.003086,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBolney
Copyhold Stream, Haywards Heath
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94 Datapoints
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5 Observations
- Monitored since: 19 March 2026
- Last observation on: 17 July 2026
- Data collector: Jo Owens
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/-0.260732,51.357527,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDownstream Stepping Stones
Hogsmill, Epsom
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456 Datapoints
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24 Observations
- Monitored since: 22 June 2024
- Last observation on: 17 July 2026
- Data collector: Georgina Fauconier
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/0.009023,51.608856,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationThe Charter Road (Gordon Avenue)
The Ching, London
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1,529 Datapoints
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101 Observations
- Monitored since: 16 November 2023
- Last observation on: 17 July 2026
- Data collector: Alistair Young
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/0.009555,51.613892,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHighams Park Lake
The Ching, London
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1,489 Datapoints
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103 Observations
- Monitored since: 17 January 2024
- Last observation on: 17 July 2026
- Data collector: Alistair Young
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/-0.257835,51.356304,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGreen Lanes A (downstream of old green lanes stream)
Hogsmill, Epsom
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425 Datapoints
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22 Observations
- Monitored since: 22 November 2024
- Last observation on: 17 July 2026
- Data collector: Georgina Fauconier
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/-89.642172,32.665102,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationOld Highway 13 Bridge
Pearl River, Lena
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3,107 Datapoints
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219 Observations
- Monitored since: 19 September 2018
- Last observation on: 17 July 2026
- Data collector: William W Mitchell
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