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Thames21
Brent Catchment Water Quality Working Group
85
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
950 Points
950 Points
![](https://cdn.waterrangers.ca/assets/default-150x150-cd282e9606eb9f82711bac32876e2d0e601ded2e263f562808e560a6eda4e0ea.jpg)
David Roth
730 Points
730 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
100 Points
100 Points
Observations
![](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 Fri, 12 Jul 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 Fri, 12 Jul 2024 10:15:00 +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 Dianne Murphy Wed, 10 Jul 2024 17:15:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2491033,51.6325892)/-0.2491033,51.6325892,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Moat Mount Open Space : Leg of Mutton Pond
London, Barnet, United Kingdom
Observed by Dianne Murphy Wed, 03 Jul 2024 13:35:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2571702,51.5959348)/-0.2571702,51.5959348,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Montrose Playing Fields Tramshed : Silk Stream
London, Barnet, United Kingdom
Observed by Matt Merkies Tue, 02 Jul 2024 16:00:00 +0100![](https://api.mapbox.com/styles/v1/mapbox/outdoors-v10/static/url-https%3A%2F%2Fwaterrangers.ca%2Fobservation-marker-v1.png(-0.2572989,51.5956016)/-0.2572989,51.5956016,16,0,0/380x220@2x?access_token=pk.eyJ1Ijoid2F0ZXJyYW5nZXJzIiwiYSI6ImY4Mzc4MTZkZDZkN2Y4YzFhMjA2MzQ3NDAyZjM0MjI1In0.jA6aLxZWzUm8bSBbumka4Q)
Greenway Tramway Ditch : Tramway Ditch - Silk Stream
London, Barnet, United Kingdom
Observed by Matt Merkies Tue, 02 Jul 2024 14:15:00 +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 Dianne Murphy Sun, 30 Jun 2024 10:15:00 +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 Sun, 30 Jun 2024 10:10:00 +0100