/-123.063011,49.257218,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
NorthWest dock at dog beach
Trout Lake, Vancouver
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382 Datapoints
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28 Observations
- Monitored since: 03 June 2022
- Last observation on: 20 April 2026
- Data collector: Jana Ronne
Latest water quality data added
597,104 datapoints at 9,432 locations
+608 new locations added in the last 30 days
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View trends at this location
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/-88.181745,41.796592,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMc Dowell Forest Preserve
the DuPage River, West Branch, Naperville
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54 Datapoints
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6 Observations
- Monitored since: 17 November 2025
- Last observation on: 20 April 2026
- Data collector: shirley watters
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/-0.192643,51.033973,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationStaplefield
River Ouse, Haywards Heath
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77 Datapoints
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4 Observations
- Monitored since: 19 January 2026
- Last observation on: 20 April 2026
- Data collector: Jo Owens
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/-88.167772,41.53955,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRock Run Preserve
Greenway Pond, Joliet
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23 Datapoints
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4 Observations
- Monitored since: 21 January 2026
- Last observation on: 20 April 2026
- Data collector: Catherine Offerman
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/-88.140178,41.757642,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBridge over river on Gartner Road near Edgewater Drive
West Branch DuPage River, Naperville
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55 Datapoints
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7 Observations
- Monitored since: 24 December 2024
- Last observation on: 20 April 2026
- Data collector: Antara Prasad
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/-88.12681,41.740342,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationWest Branch Dupage River
WBDR, Naperville
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99 Datapoints
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13 Observations
- Monitored since: 07 December 2023
- Last observation on: 20 April 2026
- Data collector: Fred Girard
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/-89.419958,38.897928,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this location140 and 127 in Greenville
East Fork Shoal Creek, Greenville
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107 Datapoints
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8 Observations
- Monitored since: 27 December 2024
- Last observation on: 20 April 2026
- Data collector: Nathaniel Brown
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/-0.342494,50.888966,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSCN Steyning Downland
Tanyard Stream, Steyning
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38 Datapoints
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2 Observations
- Monitored since: 20 March 2026
- Last observation on: 20 April 2026
- Data collector: Jo Owens
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/-0.240021,51.39049,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSt Joseph Hood Memorial Playing Fields
Brook, New Malden
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201 Datapoints
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13 Observations
- Monitored since: 11 January 2025
- Last observation on: 20 April 2026
- Data collector: Graham Bell
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/-87.951629,41.865136,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSalt Creek S Elmhurst canoe launch
Salt Creek, Elmhurst
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112 Datapoints
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13 Observations
- Monitored since: 15 November 2024
- Last observation on: 20 April 2026
- Data collector: Andrea Studzinski
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/-1.120519,52.94231,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationThe Hook Lady Bay
River Trent, Nottingham
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31 Datapoints
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1 Observations
- Monitored since: 20 April 2026
- Last observation on: 20 April 2026
- Data collector: Alfie Kelly
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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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236 Datapoints
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20 Observations
- Monitored since: 30 July 2024
- Last observation on: 20 April 2026
- Data collector: de Haan Family
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/0.019638,51.626279,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationWhitehall Outfall 5b
River Ching, Buckhurst Hill
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626 Datapoints
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51 Observations
- Monitored since: 14 March 2025
- Last observation on: 20 April 2026
- Data collector: Harrison Tremain
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View trends at this location
Whitehall Outfall 5a
River Ching, Buckhurst Hill
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645 Datapoints
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51 Observations
- Monitored since: 14 March 2025
- Last observation on: 20 April 2026
- Data collector: Harrison Tremain
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/-60.585673,46.144537,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRoss Ferry Marine Park
Bras d'Or Lake, Ross Ferry
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118 Datapoints
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9 Observations
- Monitored since: 13 July 2025
- Last observation on: 19 April 2026
- Data collector: Veronika Brzeski
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/-88.308348,41.870064,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFabyan Forest Preserve
Fox River, Geneva
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236 Datapoints
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41 Observations
- Monitored since: 13 January 2022
- Last observation on: 19 April 2026
- Data collector: Maureen Huey
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/-88.051493,41.917599,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationEast Branch DuPage River at East Branch Forest Preserve
East Branch DuPage River, Glendale Heights
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66 Datapoints
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13 Observations
- Monitored since: 17 November 2024
- Last observation on: 19 April 2026
- Data collector: Ralph Watkins
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/-88.068874,41.801727,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSaint Joseph Creek
Saint Joseph Creek, Lisle
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200 Datapoints
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21 Observations
- Monitored since: 02 December 2023
- Last observation on: 19 April 2026
- Data collector: Robert Swirsky
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/-88.529334,41.824729,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSouth of Kaneville
Welch Creek, Elburn
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121 Datapoints
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20 Observations
- Monitored since: 03 December 2023
- Last observation on: 19 April 2026
- Data collector: Scott Meister
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/-1.022029,51.320131,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationLongbridge Mill
River Loddon, Sherfield On Loddon
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272 Datapoints
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17 Observations
- Monitored since: 21 February 2025
- Last observation on: 19 April 2026
- Data collector: Josh Bowes
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