/-91.580418,41.717711,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
Muddy Creek Preserve
Muddy Creek #1 (NE), Coralville
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87 Datapoints
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6 Observations
- Monitored since: 19 November 2025
- Last observation on: 04 February 2026
- Data collector: Olivia G
Latest water quality data added
568,424 datapoints at 9,413 locations
+468 new locations added in the last 30 days
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View trends at this location
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/-0.220093,51.576109,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationBrent Cross
River Brent, London
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184 Datapoints
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12 Observations
- Monitored since: 18 February 2025
- Last observation on: 04 February 2026
- Data collector: Dianne Murphy
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/-0.279389,51.394672,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSaipem S5 - Tolworth Brook
Hogsmill, London
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154 Datapoints
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7 Observations
- Monitored since: 02 April 2025
- Last observation on: 04 February 2026
- Data collector: Georgina Fauconier
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/-74.133088,45.405504,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationRuisseau Place du Parc Saint-Lazare
Décharge Saint-Lazare, Saint Lazare
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93 Datapoints
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7 Observations
- Monitored since: 30 June 2025
- Last observation on: 04 February 2026
- Data collector: Chantal Sauvé
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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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351 Datapoints
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27 Observations
- Monitored since: 21 March 2025
- Last observation on: 04 February 2026
- Data collector: Harrison Tremain
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/0.008952,51.618979,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHatch Roundabout - Upstream
The Ching, London
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365 Datapoints
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28 Observations
- Monitored since: 21 March 2025
- Last observation on: 04 February 2026
- Data collector: Harrison Tremain
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/-75.235813,44.877921,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSt. Lawrence River
St. Lawrence River, Morrisburg
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30 Datapoints
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3 Observations
- Monitored since: 09 December 2025
- Last observation on: 03 February 2026
- Data collector: Glenna Schaillee
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/-102.350034,50.545041,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationOff shore
Round lake,
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105 Datapoints
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7 Observations
- Monitored since: 03 May 2023
- Last observation on: 03 February 2026
- Data collector: Charlotte Neyedley
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/-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
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406 Datapoints
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42 Observations
- Monitored since: 11 October 2022
- Last observation on: 03 February 2026
- Data collector: SRES Student Environmental Organization
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/-123.51124,48.477175,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationChow Nicoll Park (Site 2)
Mill Stream, Highlands
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181 Datapoints
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19 Observations
- Monitored since: 31 July 2024
- Last observation on: 03 February 2026
- Data collector: Peninsula Streams & Shorelines
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/-123.515725,48.493801,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFinlayson Arm Road (Site 1)
Mill Stream, Highlands
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172 Datapoints
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19 Observations
- Monitored since: 31 July 2024
- Last observation on: 03 February 2026
- Data collector: Peninsula Streams & Shorelines
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/-123.498173,48.46834,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationGoldie Park (Site 3)
Mill Stream, Langford
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176 Datapoints
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19 Observations
- Monitored since: 31 July 2024
- Last observation on: 03 February 2026
- Data collector: Peninsula Streams & Shorelines
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/-123.482015,48.450212,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationAtkins Avenue (Site 5)
Mill Stream, Langford
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177 Datapoints
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19 Observations
- Monitored since: 31 July 2024
- Last observation on: 03 February 2026
- Data collector: Peninsula Streams & Shorelines
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/-123.472681,48.447408,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationHartwig-Saunders Park (Site 6)
Mill Stream, Victoria
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174 Datapoints
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18 Observations
- Monitored since: 31 July 2024
- Last observation on: 03 February 2026
- Data collector: Peninsula Streams & Shorelines
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/-123.487573,48.456915,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationCedar Vale Park (Site 4)
Mill Stream, Langford
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175 Datapoints
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19 Observations
- Monitored since: 31 July 2024
- Last observation on: 03 February 2026
- Data collector: Peninsula Streams & Shorelines
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/-88.078916,41.792148,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationLisle Community Park Boat Launch near Short St on East Branch DuPage River
East Branch DuPage River, Lisle
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75 Datapoints
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9 Observations
- Monitored since: 09 December 2024
- Last observation on: 03 February 2026
- Data collector: S Neufelder
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/-0.06044,50.91814,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationSCN Plumpton Lane
Plumpton Mill, Lewes
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19 Datapoints
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1 Observations
- Monitored since: 03 February 2026
- Last observation on: 03 February 2026
- Data collector: Jo Owens
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/0.500063,50.87807,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationCrowhurst
Powdermill Stream, Battle
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10 Datapoints
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1 Observations
- Monitored since: 03 February 2026
- Last observation on: 03 February 2026
- Data collector: Weldon Reece
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/-123.41436,48.637935,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImNtMG5zdzhhMjAxMnkya3IzZHVybzlxMDEifQ.3GdXd13tReOaKwengLTZTg)
View trends at this locationFrost Avenue
Reay Creek, Sidney
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173 Datapoints
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21 Observations
- Monitored since: 22 August 2025
- Last observation on: 02 February 2026
- Data collector: Allison Weber
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/-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
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173 Datapoints
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20 Observations
- Monitored since: 22 August 2025
- Last observation on: 02 February 2026
- Data collector: Allison Weber
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