Waterfall Walk 2 (Downstream) : Pymmes Brook

London, Barnet, United Kingdom

Observed by
Matthew Pierce
  • Observed on: Tue, 22 Jul 2025 05:33:00 +0100
  • Testers Matthew Pierce
  • Associated with:
    Thames21 : Lea Guardians
  • Lat: 51.62178
  • Lng: -0.1360506

Observation report

See trends at this location

Water quality tests

Pending Quality Check from Water Rangers What's this?

Dissolved oxygen mg/L What's this? 5.26
Ammonia ppm What's this? 0.2
Conductivity μS/cm What's this? 862.0
Turbidity NTU What's this? 0.0
Water temperature °C What's this? 17.8
Phosphates total ppm What's this? 1.53

Qualitative

Algae What's this? No
Odour What's this? None
Clarity What's this? Clear
Pollution What's this? Urban/road discharge
Water Flow What's this? Steady
Water Level What's this? Average
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

No photos uploaded.

Notes

The river was very high three days ago, but when I tested it was back at normal level. Small amounts of white foam by the outfall just upstream.