pH (0-14)
What's this?
8.4
Saipem S3 - Chapel Mill Road : Hogsmill
London, Kingston upon Thames, United Kingdom

Observed by
William Welhenage
- Observed on: Tue, 29 Jul 2025 12:30:00 +0100
- Lat: 51.4043728
- Lng: -0.2942491
Observation report
See trends at this locationWater quality tests
Pending Quality Check from Water Rangers What's this?
Ammonia ppm
What's this?
0.16
Chlorine ppm
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0.0
Hardness mg/L
What's this?
150.0
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?
875.0
Air temperature °C
What's this?
19.0
Water temperature °C
What's this?
23.6
Phosphates total ppm
What's this?
1.79
Wildlife
Weather
Current weather What's this?
Weather in previous 24 hours What's this?
Latest photos
No photos uploaded.
Notes
Water appeared clearer than previous sample (2 weeks before)