Observation

Brent_41 Union Canal Towpath

Brent River

River or stream

View trends at this location

March 7, 2026 at 7:00 AM

QA status: Needs review

This observation is under review by Water Rangers, last updated on 2026-03-07, and has not been marked as checked yet. Details are below.

Review needed: Based on previous readings, conductivity's result of 580μS/cm is outside the expected range of 612.01-869.99μS/cm.

Weather observations

  • Current weather description

    Community scientist interpretation

    8 °C

  • Weather in the past 24hrs description

    Community scientist interpretation

    9 °C

  • Current weather

    Community scientist interpretation

    • Cloudy

  • Weather in the past 24hrs

    Community scientist interpretation

    • Cloudy
    • Rainy

Qualitative readings

  • Clarity

    Community scientist interpretation

    Cloudy

  • Water use

    Community scientist interpretation

    Boating

  • Colour

    Community scientist interpretation

    Brown

Plants/wildlife

  • Algae

    Community scientist interpretation

    None

Issue reporting

  • Odour

    Community scientist interpretation

    None

  • Water surface

    Community scientist interpretation

    Natural debris

Physical tests

  • Water flow

    Community scientist interpretation

    Slow

  • Water level

    Community scientist interpretation

    Average

Chemistry tests

  • Ammonia

    mg/L

    Hanna checker (ammonia - low range)

    0.28

  • Conductivity

    μS/cm

    Other pen-type meter (conductivity)

    580

  • Turbidity

    NTU

    Turbidity tube (45 cm)

    13

  • Water temperature

    °C

    Other thermometer

    11.3

  • Phosphates

    mg/L

    Hanna checker (phosphates - low range)

    0.52

Recent photos

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Notes

1. Houseboats moored nearby. 2. Some leaves and branches in the water, probably from the rain yesterday.

Location description
Brent River in Hanwell, accessible from Billetts Hart Cl, London W7 2PY.