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Thames21
Brent Catchment Water Quality Working Group
91
Observations
0
Issues
42
Locations
Leaderboard
![](https://cdn.waterrangers.ca/attachments/91a0f638b1547fd0fdd984de7a6344427107e887/store/fill/150/150/e198bc6073300c5753dd80127479afe531f74beca64fcb926f0b13d23789/IMG-20230623-WA0000.jpg)
Philly Nicholls
3700 Points
3700 Points
![](https://cdn.waterrangers.ca/attachments/70c784b2f831cee36ec6780d268be237b392050d/store/fill/150/150/d154d4fe3eb7bf1a693f1cb8f19c8f23aa7ee046005a3e80921c7cf8574f/ajy.jpg)
Alistair Young
1520 Points
1520 Points
![](https://cdn.waterrangers.ca/assets/default-150x150-cd282e9606eb9f82711bac32876e2d0e601ded2e263f562808e560a6eda4e0ea.jpg)
David Roth
750 Points
750 Points
![](https://cdn.waterrangers.ca/assets/default-150x150-cd282e9606eb9f82711bac32876e2d0e601ded2e263f562808e560a6eda4e0ea.jpg)
Helen Cardy
330 Points
330 Points
![](https://cdn.waterrangers.ca/assets/default-150x150-cd282e9606eb9f82711bac32876e2d0e601ded2e263f562808e560a6eda4e0ea.jpg)
Trevor Steeples
220 Points
220 Points
Observations
![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2022708,51.624755)/-0.2022708,51.624755,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Darlands Lake (Downstream) : Folly Brook/Dollis Brook
London, Barnet, United Kingdom
Observed by David Roth Sun, 26 May 2024 11:45:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2078666,51.625002)/-0.2078666,51.625002,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Darlands Lake (Upstream) : Folly Brook/Dollis Brook
London, Barnet, United Kingdom
Observed by David Roth Sun, 26 May 2024 10:45:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2814116,51.607569)/-0.2814116,51.607569,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Chandos Park (Downstream) : Edgware Brook
London, Harrow, United Kingdom
Observed by Trevor Steeples Thu, 09 May 2024 11:30:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2848075,51.606746)/-0.2848075,51.606746,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Chandos Park (Upstream) : Edgware Brook
London, Harrow, United Kingdom
Observed by Trevor Steeples Thu, 09 May 2024 11:00:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2632427,51.601546)/-0.2632427,51.601546,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Silk Stream Park : Silk Stream
London, Barnet, United Kingdom
Observed by Matt Merkies Thu, 02 May 2024 19:10:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2022708,51.624755)/-0.2022708,51.624755,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Darlands Lake (Downstream) : Folly Brook/Dollis Brook
London, Barnet, United Kingdom
Observed by David Roth Fri, 26 Apr 2024 14:00:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2078666,51.625002)/-0.2078666,51.625002,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Darlands Lake (Upstream) : Folly Brook/Dollis Brook
London, Barnet, United Kingdom
Observed by David Roth Fri, 26 Apr 2024 13:10:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2848075,51.606746)/-0.2848075,51.606746,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Chandos Park (Upstream) : Edgware Brook
London, Harrow, United Kingdom
Observed by Trevor Steeples Thu, 25 Apr 2024 16:28:00 +0100