/-88.324692,41.82193,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Mill Creek at bike trail bridge
Mill Creek, Batavia
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160 Datapoints
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20 Observations
- Monitored since: 20 December 2023
- Last observation on: 28 February 2026
- Data collector: Rod Allen
Latest water quality data added
578,283 datapoints at 9,350 locations
+543 new locations added in the last 30 days
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View trends at this location
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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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98 Datapoints
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14 Observations
- Monitored since: 19 November 2024
- Last observation on: 28 February 2026
- Data collector: Tom Prince
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/-1.502016,53.848552,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGreat Head Becks 1 in Addyman Woods
Great Heads Beck, Leeds
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268 Datapoints
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14 Observations
- Monitored since: 26 January 2025
- Last observation on: 28 February 2026
- Data collector: Jane Stanbury
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/-0.037255,51.561403,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFriends Bridge
Lea (Old River Lea), London
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299 Datapoints
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122 Observations
- Monitored since: 31 July 2021
- Last observation on: 28 February 2026
- Data collector: Alistair Young
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/-88.323566,41.806709,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationNorth Aurora Riverfront Park
Fox River, North Aurora
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27 Datapoints
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4 Observations
- Monitored since: 24 November 2025
- Last observation on: 28 February 2026
- Data collector: Kathleen Klehr
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/-0.029612,51.561278,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFlood Relief Channel outflow
Old Lea, London
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238 Datapoints
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20 Observations
- Monitored since: 10 August 2024
- Last observation on: 28 February 2026
- Data collector: Gideon Corby
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/-0.84275,51.352275,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationMoulsham Bridge, Moor Green, Finchampstead
Blackwater River, Wokingham
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131 Datapoints
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13 Observations
- Monitored since: 26 April 2025
- Last observation on: 28 February 2026
- Data collector: Alan Holmes
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/-0.800843,51.341547,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSandhurst Sewage Works
Blackwater River, Camberley
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154 Datapoints
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10 Observations
- Monitored since: 01 June 2025
- Last observation on: 28 February 2026
- Data collector: Chrissy Pieters
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/-1.541519,52.288323,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRiver Leam North Bank RLSCC
River Leam, Leamington
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240 Datapoints
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20 Observations
- Monitored since: 16 July 2024
- Last observation on: 28 February 2026
- Data collector: Jo Beckett
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/0.142148,51.535643,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSewage Outlet, Near Downing Road Entrance Goresbrook Park
The Gores Brook, Dagenham
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43 Datapoints
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6 Observations
- Monitored since: 07 September 2025
- Last observation on: 28 February 2026
- Data collector: Harrison Tremain
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/-0.029842,51.570977,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDagenham Brook Bridge Rd D/S
Dagenham Brook , London
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144 Datapoints
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9 Observations
- Monitored since: 29 April 2025
- Last observation on: 28 February 2026
- Data collector: Steve Williams
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/0.143232,51.538069,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGoresbrook Park Footbridge, Dagenham Avenue
The Gores Brook, Dagenham
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43 Datapoints
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6 Observations
- Monitored since: 07 September 2025
- Last observation on: 28 February 2026
- Data collector: Harrison Tremain
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/-0.039847,51.576136,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationNorth Access Road
Dagenham Brook, London
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136 Datapoints
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9 Observations
- Monitored since: 30 May 2025
- Last observation on: 28 February 2026
- Data collector: Harrison Tremain
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/0.020547,51.627561,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationWhitehall Plain
The Ching, Buckhurst Hill
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622 Datapoints
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58 Observations
- Monitored since: 14 July 2024
- Last observation on: 28 February 2026
- Data collector: Alistair Young
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/0.025535,51.634055,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFootbridge near Rangers Road
Ching Brook, Buckhurst Hill
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620 Datapoints
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59 Observations
- Monitored since: 14 July 2024
- Last observation on: 28 February 2026
- Data collector: Mo Tausif
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/0.025654,51.63776,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDownstream of Connaught Water
The Ching, Buckhurst Hill
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790 Datapoints
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63 Observations
- Monitored since: 23 November 2023
- Last observation on: 28 February 2026
- Data collector: Alistair Young
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/-1.531606,53.833473,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationConfluence of both water sources (below both Harrogate Road and Allerton Grange CSOs).
Gledhow Beck, Leeds
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615 Datapoints
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30 Observations
- Monitored since: 25 September 2023
- Last observation on: 28 February 2026
- Data collector: Simon Conyers
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/0.173235,51.536667,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationDagenham Road
Beam River, Dagenham
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43 Datapoints
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6 Observations
- Monitored since: 07 September 2025
- Last observation on: 28 February 2026
- Data collector: Harrison Tremain
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/0.186893,51.549119,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFootbridge, Upper Rainham Road
Beam River, Romford
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43 Datapoints
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6 Observations
- Monitored since: 07 September 2025
- Last observation on: 28 February 2026
- Data collector: Harrison Tremain
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/-1.529567,53.835765,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationAllerton Grange CSO - above
Gledhow Beck, Leeds
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566 Datapoints
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28 Observations
- Monitored since: 25 September 2023
- Last observation on: 28 February 2026
- Data collector: Simon Conyers
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