pH (0-14)
What's this?
7.8
Middle Mill : Hogsmill
London, Kingston upon Thames, United Kingdom

Observed by
Alistair Garner
- Observed on: Tue, 22 Apr 2025 12:13:00 +0100
- Testers Alistair Garner, Matthew McWilliam, Ben Stokes
-
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
What's this?
0.17
Chlorine ppm
What's this?
0.0
Hardness mg/L
What's this?
400.0
Nitrates ppm
What's this?
10.0
Alkalinity mg/L
What's this?
120.0
Water depth m
What's this?
0.5
Conductivity μS/cm
What's this?
850.0
Air temperature °C
What's this?
16.0
Water temperature °C
What's this?
17.4
Phosphates total ppm
What's this?
0.47
Qualitative
Algae
What's this?
No
Odour
What's this?
None
Clarity
What's this?
Clear
Water Flow
What's this?
Steady
Water Level
What's this?
Low
Water Colour
What's this?
Clear
On the water surface
What's this?
None
Weather
Current weather What's this?
Weather in previous 24 hours What's this?
Latest photos
Notes
None