Windsor Open Space - Village Road Outfall : Dollis Brook

London, England, United Kingdom

Observed by
Judith Howlett

Observed on: Sat, 16 Aug 2025 09:45:00 +0100
Testers Jude
Associated with:
Thames21 : Brent Catchment Water Quality Working Group
Lat: 51.5984066
Lng: -0.2091717

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Observation report

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Water quality tests

Pending Quality Check from Water Rangers What's this?

Ammonia ppm 0.18

Conductivity μS/cm 898.0

Water temperature °C 20.8

Qualitative

Algae No

Odour None

Clarity Clear

Pollution Residential discharge

Water Flow Slow

Water Uses Other

Water Level Low

Water Colour Clear

On the water surface None

Weather

Current weather

cloudy

Cooler morning after another period of heat

Weather in previous 24 hours

sunny

Latest photos

Notes

Opportunistic sampling as passing.
Ammonia only tested as awaiting more phosphate testing kits.
Water from outfall looks fairly clear at the moment and no particular smell