Location

Outfall / culvert

Mutton Brook

Mutton Brook in Barnet

Dataset summary

Outfall / culvert has data for water_level, pollution_sources, conductivity, water_temperature, ph, oxygen, ammonia, previous_weather, current_weather, air_temperature, phosphates, and current_weather_description from 22 June 2024 to 6 June 2025.

51.58723, -0.209491

Summary of quantitative results

Guidelines for exceedances are based on: United Kingdom
  • Chemistry tests

    • Ammonia

      mg/L

      Hanna checker (ammonia - low range)

      0.07

      Latest

      0.42

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Oxygen

      mg/L

      LaMotte (dissolved oxygen)

      9.23

      Latest

      9.23

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Oxygen

      %

      Other dissolved oxygen multimeter (%)

      99.5

      Latest

      99.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Phosphates

      mg/L

      Hanna checker (phosphates - low range)

      1.38

      Latest

      1.94

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Conductivity

      μS/cm

      Other pen-type meter (conductivity)

      537.0

      Latest

      480.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • pH

      Other pen-type meter (pH)

      7.61

      Latest

      7.61

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Air temperature

      °C

      Other thermometer

      8.3

      Latest

      14.15

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Water temperature

      °C

      Other thermometer

      19.3

      Latest

      14.85

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

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Recent photos

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Location description
The sample is taken from above the outfall using a bucket and rope, so caution must be taken to not fall down. The sample is taken from the river and not from inside the culvert itself, but the water taken is still primarily coming from the outfall to look at the impact of the water coming from this outfall.