/-88.036537,41.883241,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Hill Ave Bridge
East Branch DuPage River, Lombard
-
105 Datapoints
-
19 Observations
- Monitored since: 17 November 2023
- Last observation on: 10 February 2026
- Data collector: Joe Wywrot
Latest water quality data added
569,279 datapoints at 9,390 locations
+472 new locations added in the last 30 days
-
View trends at this location
-
/-89.990859,38.507831,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRichland Creek @ South Side City Park
Richland Creek, Belleville
-
328 Datapoints
-
37 Observations
- Monitored since: 09 February 2023
- Last observation on: 10 February 2026
- Data collector: David Laslie
-
-
/-88.994086,42.306531,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSpring Creek- RVC Amphitheater
Spring Creek, Rockford
-
431 Datapoints
-
43 Observations
- Monitored since: 11 October 2022
- Last observation on: 10 February 2026
- Data collector: SRES Student Environmental Organization
-
-
/-90.027165,38.548394,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSchoenberger Creek at West Belleville Bikeway
Schoenberger Creek, Belleville
-
190 Datapoints
-
17 Observations
- Monitored since: 23 October 2023
- Last observation on: 10 February 2026
- Data collector: David Laslie
-
-
/-88.164597,41.543694,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRock Run Creek
Rock Run Creek, Joliet
-
133 Datapoints
-
19 Observations
- Monitored since: 12 November 2023
- Last observation on: 10 February 2026
- Data collector: Andy Neill
-
-
/-87.771857,41.990103,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationNorth Branch Chicago River at Edgebrook Woods
North Branch Chicago River, Chicago
-
172 Datapoints
-
27 Observations
- Monitored since: 17 December 2022
- Last observation on: 10 February 2026
- Data collector: Alan Matson
-
-
/-88.147602,41.765834,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationWest Branch DuPage River at Hillside
West Branch DuPage River , Naperville
-
110 Datapoints
-
19 Observations
- Monitored since: 11 November 2023
- Last observation on: 10 February 2026
- Data collector: Shari Buma
-
-
/-88.161721,41.785955,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationCress Creek
Cress Creek, Naperville
-
110 Datapoints
-
19 Observations
- Monitored since: 11 November 2023
- Last observation on: 10 February 2026
- Data collector: Shari Buma
-
-
/-88.136716,41.798449,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationArrowhead Park
Unnamed Creek , Naperville
-
63 Datapoints
-
11 Observations
- Monitored since: 13 November 2024
- Last observation on: 10 February 2026
- Data collector: Shari Buma
-
-
/-1.556001,53.804558,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGarstang
Field Store, Leeds
-
6 Datapoints
-
1 Observations
- Monitored since: 10 February 2026
- Last observation on: 10 February 2026
- Data collector: Keeley McCabe
-
-
/-0.002149,51.51821,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationTidal River Lea
River Lea, London
-
9 Datapoints
-
1 Observations
- Monitored since: 10 February 2026
- Last observation on: 10 February 2026
- Data collector: Cody Dock
-
-
/-0.002618,51.518497,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBund
River Lea, London
-
8 Datapoints
-
1 Observations
- Monitored since: 10 February 2026
- Last observation on: 10 February 2026
- Data collector: Cody Dock
-
-
/-0.003728,51.519238,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDock
River Lea, London
-
9 Datapoints
-
1 Observations
- Monitored since: 10 February 2026
- Last observation on: 10 February 2026
- Data collector: Cody Dock
-
-
/-123.410381,48.634912,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSite 1 Culvert
Reay Creek, North Saanich
-
188 Datapoints
-
22 Observations
- Monitored since: 25 July 2025
- Last observation on: 09 February 2026
- Data collector: Allison Weber
-
-
/-123.411054,48.635359,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSite 2 Metal Bridge
Reay Creek, North Saanich
-
184 Datapoints
-
21 Observations
- Monitored since: 22 August 2025
- Last observation on: 09 February 2026
- Data collector: Allison Weber
-
-
/-123.41436,48.637935,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFrost Avenue
Reay Creek, Sidney
-
184 Datapoints
-
22 Observations
- Monitored since: 22 August 2025
- Last observation on: 09 February 2026
- Data collector: Allison Weber
-
-
/-88.183973,41.829393,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHarry J. Wolf
Spring Brook Creek, Warrenville
-
116 Datapoints
-
12 Observations
- Monitored since: 12 November 2024
- Last observation on: 09 February 2026
- Data collector: Harry Wolf
-
-
/-88.201933,41.938488,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationTurnmill Pond - Smythe Settlement
Turnmill Pond, West Chicago
-
136 Datapoints
-
17 Observations
- Monitored since: 29 November 2023
- Last observation on: 09 February 2026
- Data collector: Steve Slivka
-
-
/-88.199165,41.94358,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationArmy Trail West Pond - Smythe Settlement
Army Trail West Pond, West Chicago
-
138 Datapoints
-
17 Observations
- Monitored since: 29 November 2023
- Last observation on: 09 February 2026
- Data collector: Steve Slivka
-
-
/-88.197062,41.938536,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationTrinity South Pond - Smythe Settlement
Trinity South Pond, West Chicago
-
143 Datapoints
-
17 Observations
- Monitored since: 29 November 2023
- Last observation on: 09 February 2026
- Data collector: Steve Slivka
-