Location

NHS Blood bank

Silk Stream

Silk Stream in Barnet

Dataset summary

NHS Blood bank has data for ammonia, phosphates, total_dissolved_solids_tds, odour, clarity, pollution_sources, water_flow, water_level, colour, current_weather, previous_weather, and current_weather_description from 13 November 2024 to 26 June 2025.

51.595455, -0.256462

Summary of quantitative results

Guidelines for exceedances are based on: United Kingdom

  • Chemistry tests

    • Ammonia

      mg/L

      Hanna checker (ammonia - low range)

      0.13

      Latest

      0.35

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Phosphates

      mg/L

      Hanna checker (phosphates - low range)

      2.41

      Latest

      2.46

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

    • Total dissolved solids (TDS)

      ppm

      Other pen-type meter (TDS)

      926.0

      Latest

      926.0

      Average

      Not enough data for trend yet

      Trendlines will appear once three sampling dates are entered

View observation list ›

Recent photos

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Location description
This test location is after the point where 2 tributary ditches(the Tramway Ditches)join the Silk Stream from opposite sides at Montrose Playing Fields