/-87.951629,41.865136,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Salt Creek S Elmhurst canoe launch
Salt Creek, Elmhurst
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73 Datapoints
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10 Observations
- Monitored since: 15 November 2024
- Last observation on: 22 January 2026
- Data collector: Andrea Studzinski
Latest water quality data added
561,149 datapoints at 9,365 locations
+440 new locations added in the last 30 days
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View trends at this location
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/0.185419,51.568335,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFrazer Close
River Rom, Romford
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35 Datapoints
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5 Observations
- Monitored since: 12 September 2025
- Last observation on: 22 January 2026
- Data collector: Harrison Tremain
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/0.232809,51.550871,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHacton Lane Road Bridge
River Ingrebourne, Upminster
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35 Datapoints
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5 Observations
- Monitored since: 12 September 2025
- Last observation on: 22 January 2026
- Data collector: Harrison Tremain
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/0.21178,51.56467,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGrey Towers Allotment
River Ravensbourne, Hornchurch
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35 Datapoints
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5 Observations
- Monitored since: 12 September 2025
- Last observation on: 22 January 2026
- Data collector: Harrison Tremain
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/0.187391,51.589546,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRaphael Park
Black’s Brook, Romford
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35 Datapoints
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5 Observations
- Monitored since: 12 September 2025
- Last observation on: 22 January 2026
- Data collector: Harrison Tremain
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/0.173916,51.011389,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHadlow Down
Upper River Uck, Uckfield
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20 Datapoints
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1 Observations
- Monitored since: 22 January 2026
- Last observation on: 22 January 2026
- Data collector: Jo Owens
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/-88.351107,41.930044,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFerson Creek at LeRoy Oakes FP Bridge
Ferson Creek, Saint Charles
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121 Datapoints
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17 Observations
- Monitored since: 08 November 2023
- Last observation on: 21 January 2026
- Data collector: Jim Baum
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/-88.147262,41.769768,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDuPage River at Riverwalk South Covered Bridge
DuPage River , Naperville
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183 Datapoints
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18 Observations
- Monitored since: 14 December 2023
- Last observation on: 21 January 2026
- Data collector: Shelley Birdsong
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/-88.001456,41.784994,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationCreek under Fairmount Ave, east side of bridge
Creek under Fairmount Ave, Downers Grove
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79 Datapoints
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12 Observations
- Monitored since: 19 November 2024
- Last observation on: 21 January 2026
- Data collector: Tom Prince
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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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213 Datapoints
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38 Observations
- Monitored since: 13 January 2022
- Last observation on: 21 January 2026
- Data collector: Maureen Huey
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/-90.232365,38.960143,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationCreek at Merry Meadows
Rocky Fork Tributary, Godfrey
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104 Datapoints
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17 Observations
- Monitored since: 31 December 2023
- Last observation on: 21 January 2026
- Data collector: James Weiss
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/-88.187211,41.568517,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationLily Cache Creek
Lily Cache Creek, Plainfield
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306 Datapoints
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30 Observations
- Monitored since: 04 November 2021
- Last observation on: 21 January 2026
- Data collector: John Griffis
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/-87.5455,41.432656,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationPlum Creek at Klemme
Plum Creek at Klemme Rd, Crete
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117 Datapoints
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16 Observations
- Monitored since: 10 December 2023
- Last observation on: 21 January 2026
- Data collector: Jane Schulten
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/-88.236651,40.112365,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBoneyard Creek just south of the corner of Springfield Ave and Second St
Boneyard Creek, Champaign
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83 Datapoints
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7 Observations
- Monitored since: 21 December 2023
- Last observation on: 21 January 2026
- Data collector: Wendy Harris
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/-88.172575,41.610428,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationLily Cache Creek
Lily Cache Creek, Plainfield
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345 Datapoints
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34 Observations
- Monitored since: 04 November 2021
- Last observation on: 21 January 2026
- Data collector: John Griffis
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/-0.5741,51.211231,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBroadford Road Bridge
River Wey, Guildford
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524 Datapoints
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26 Observations
- Monitored since: 07 July 2025
- Last observation on: 21 January 2026
- Data collector: Paul Holmes-Higgin
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/-91.584236,41.720091,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMuddy Creek Preserve
Muddy Creek #2 (NW), North Liberty
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73 Datapoints
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5 Observations
- Monitored since: 19 November 2025
- Last observation on: 21 January 2026
- Data collector: Olivia Gibbs
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/-91.580418,41.717711,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMuddy Creek Preserve
Muddy Creek #1 (NE), Coralville
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72 Datapoints
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5 Observations
- Monitored since: 19 November 2025
- Last observation on: 21 January 2026
- Data collector: Olivia Gibbs
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/-0.030267,50.923394,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationChiltington Lane
Bevern Stream, Lewes
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21 Datapoints
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1 Observations
- Monitored since: 21 January 2026
- Last observation on: 21 January 2026
- Data collector: Jo Owens
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/0.00869,51.618456,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHatch Roundabout - Downstream
The Ching, London
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323 Datapoints
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25 Observations
- Monitored since: 21 March 2025
- Last observation on: 21 January 2026
- Data collector: Harrison Tremain
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