Dataset

Hogsmill Water Quality

Dataset by South East Rivers Trust

Dataset summary

Observations

  • 15 September 2025

    Bonegate Stream by Robb Reeves

    Wouldn't allow me to add Phosphate reading I got from the Hannah checker of 1.71 my readings for phosphate in the Bonesgate have been above 1 for the last 5 months.

  • 13 September 2025

    Green Lanes A (downstream of old green lanes stream) by Richard Cotmore

  • 11 September 2025

    Berrylands Bridge by Phil Renton

    Water clear, many 21x Stone Loach with 0+ animals present

  • 11 September 2025

    Middle Mill by Sivi Sivanesan

    The deeper parts of the channel have shifted after flows following recent cloud bursts. Our phosphate meter (hannah) gives us a reading of 1.41, which can't be entered above as its more then 1

  • 9 September 2025

    Saipem S5 - Tolworth Brook by Mark Walker

    Phosphates (ppm) = 2.12

  • 14 August 2025

    Green Lanes A (downstream of old green lanes stream) by Richard Cotmore

  • 7 August 2025

    Berrylands Bridge by Phil Renton

    Low flow, Cladophora so coating rock and gravels

  • 29 July 2025

    Saipem S3 - Chapel Mill Road by William Welhenage

    Water appeared clearer than previous sample (2 weeks before)

  • 17 July 2025

    Saipem S4 - Berrylands playground by Steve Gibbs

    River depth similar to June and May visits, however river flow rate was down to 2m/minute. Previously 3.4m/minute in June and 4m/minute in May.