Location

Nadder upstream STW outflow

Nadder Stream

Nadder Stream in Surrey

Dataset summary

Nadder upstream STW outflow has data for nitrate_nitrogen, conductivity, phosphate_phosphorus, ph, hardness, alkalinity, air_temperature, water_temperature, current_weather, previous_weather, chlorine, algae, odour, clarity, pollution_sources, water_flow, water_level, colour, on_the_water_s_surface, current_weather_description, and e_coli from 21 November 2024 to 29 December 2024.

51.222631, -0.779248

Summary of quantitative results

Guidelines for exceedances are based on: United Kingdom

  • Chemistry tests

    • Phosphate-phosphorus

      mg/L

      Kyoritsu Packtest (phosphate-phosphorus)

      0.02

      Latest

      0.02

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Nitrate-nitrogen

      mg/L

      Kyoritsu Packtest (nitrate-nitrogen)

      1.0

      Latest

      1.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Water temperature

      °C

      Water Rangers pen-type meter (temperature)

      9.5

      Latest

      9.8

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • pH

      Taylor teststrips (pH)

      7.5

      Latest

      7.35

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Hardness

      ppm

      Taylor teststrips (hardness)

      200.0

      Latest

      200.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Conductivity

      μS/cm

      Water Rangers pen-type meter (conductivity)

      686.0

      Latest

      703.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Chlorine

      ppm

      Taylor teststrips (chlorine)

      0.0

      Latest

      0.25

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Alkalinity

      ppm

      Taylor teststrips (alkalinity)

      180.0

      Latest

      165.0

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

    • Air temperature

      °C

      Water Rangers (stream thermometer) and/or weather app

      3.5

      Latest

      7.5

      Average

      Not enough data for trend yet

      Trendlines will appear once >3 datapoints are entered.

  • Biological tests

    • E. coli

      CFU/100 mL

      IDEXX Colilert 2000

      2,300.0

      Latest

      2,300.0

      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
This is quite a hard place to get to. You have to push through some branches by the side of the A325 but it’s the only place you can really get to the Nadder Stream close to the discharge. There’s lots of water that joins the stream between Farnham Park and here so it’s important to sample here rather than just at Farnham Park.