pH (0-14)
What's this?
8.4
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Middle Mill : Hogsmill
London, Kingston upon Thames, United Kingdom

Observed by
Alistair Garner
- Observed on: Thu, 22 May 2025 13:16:00 +0100
- Testers Alistair Garner, Matthew McWilliam
-
Associated with:
South East Rivers Trust : Hogsmill Water Quality - Lat: 51.405093
- Lng: -0.2973819
Observation report
See trends at this locationWater quality tests
Pending Quality Check from Water Rangers What's this?
Ammonia ppm
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0.22
Chlorine ppm
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0.0
Hardness mg/L
What's this?
200.0
Nitrates ppm
What's this?
10.0
Alkalinity mg/L
What's this?
120.0
Water depth m
What's this?
0.3
Conductivity μS/cm
What's this?
811.0
Air temperature °C
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16.0
Water temperature °C
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18.9
Phosphates total ppm
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2.5
Qualitative
Algae
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No
Odour
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None
Clarity
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Clear
Water Flow
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Steady
Water Level
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Average
Water Colour
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Yellow
On the water surface
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None
Wildlife

Bird
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Weather
Current weather What's this?
Weather in previous 24 hours What's this?