Location

Millmead, Near High Street Bridge, Guildford

River Wey

River Wey in Surrey

Dataset summary

Millmead, Near High Street Bridge, Guildford has data for water_temperature, total_coliform, e_coli, phosphate_phosphorus, previous_weather, on_the_water_s_surface, current_weather, algae, odour, clarity, water_flow, water_use, water_level, colour, conductivity, alkalinity, hardness, ph, previous_weather_description, nitrates, nitrate_nitrogen, chlorine, air_temperature, oxygen, and secchi_depth from 14 December 2017 to 16 August 2024.

51.235044, -0.576884

Summary of quantitative results

Guidelines for exceedances are based on: United Kingdom

  • Physical tests

    • Secchi depth (clarity)

      Secchi disk (20 cm diameter)

      m

      0.15

      Latest

      0.15

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

  • Chemistry tests

    • Phosphate-phosphorus

      Kyoritsu Packtest (phosphate-phosphorus)

      mg/L

      0.0

      Latest

      0.38

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Water temperature

      Water Rangers pen-type meter (temperature)

      °C

      15.0

      Latest

      11.17

      Average

      View chart breakdown

    • Oxygen

      Chemetrics ampoules (dissolved oxygen)

      mg/L

      10.0

      Latest

      8.33

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Nitrate

      Unspecified equipment (nitrate)

      mg/L

      45.0

      Latest

      45.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Conductivity

      Water Rangers pen-type meter (conductivity)

      μS/cm

      424.0

      Latest

      400.6

      Average

      View chart breakdown

    • Air temperature

      Water Rangers (stream thermometer) and/or weather app

      °C

      19.0

      Latest

      12.2

      Average

      View chart breakdown

    • Nitrate-nitrogen

      Kyoritsu Packtest (nitrate-nitrogen)

      mg/L

      45.0

      Latest

      45.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

  • Biological tests

    • Total coliform

      IDEXX Colilert 2000

      CFU/100 mL

      4,840.0

      Latest

      4,840.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • E. coli

      IDEXX Colilert 2000

      CFU/100 mL

      1,540.0

      Latest

      1,311.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

      What do these colours mean?

View observation list ›