Hatch Roundabout - Upstream : The Ching

London, Waltham Forest, United Kingdom

Observed by
Derek Seume
  • Observed on: Mon, 12 May 2025 11:10:00 +0100
  • Testers Derek Seume
  • Associated with:
    Thames21 : Lea Guardians
  • Lat: 51.6189786
  • Lng: 0.008952

Observation report

See trends at this location

Water quality tests

Pending Quality Check from Water Rangers What's this?

Ammonia ppm What's this? 0.01
Phosphates total ppm What's this? 2.47

Qualitative

Algae What's this? No
Odour What's this? None
Clarity What's this? Clear
Water Flow What's this? Slow
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

Very dubious ammonia reading - think I must have done something wrong, sorry - suggest disregarding and extrapolating from previous and next readings.