Dataset

Ravensbourne Catchment Improvement Group's Water Quality Working Group

Dataset by Thames21

Dataset summary

Observations

  • 27 October 2025

    East Kyd Brook by Kirsty Blackman

    Lots of leaves in the water today.

  • 27 October 2025

    Kyd Brook C.S.O by Kirsty Blackman

    There was lots of leaves in the brook today. The EDM (event duration monitor) showed that the C.S.O discharged ( potentially raw untreated sewage) into Kyd Brook on the 23rd October 25 for 2 1/2hrs and on the 20th October 25 for 45mins, please see attached photos. I'm unsure if I have missed any discharge events.

  • 13 October 2025

    Kyd Brook S.W.O upstream by Kirsty Blackman

    There is lots of leaves and silt in the Brook today.

  • 13 October 2025

    Kyd Brook S.W.O downstream by Kirsty Blackman

    Lots of leaves as well as silt in the brook today. Thames water are still carrying out works to remedy the problems with drains that was causing the pollution incidents earlier this year.

  • 13 October 2025

    East Kyd Brook by Kirsty Blackman

    The phosphate levels are unusually high today, this has happened previously when there is building work nearby. There are also some baby fish/fry in the brook in a couple of places. The ones in this location have a few that are showing signs of illness, they have white growths currently on their heads, unfortunately it is impossible tk get a photo. I will report this to the Environment Agency.

  • 13 October 2025

    Kyd Brook C.S.O by Kirsty Blackman

    The EDM (event duration monitor) showed that the last discharge of possible raw sewage into Kyd Brook occurred on 4:10:2025 from 1.45am - 2: 25am = 1hr

  • 10 October 2025

    Kyd Brook Hawkswood Estate by Kirsty Blackman

    This site is also a riverfly monitoring site by Brian Knight and I, today has been very poor indeed. We carried out the 3 minute kick test twice to see if the score would improve but it was worse. The stones were covered in silt, the water wasn't was cloudy due to silt and there was a lot of natural debris. 7 x gammarus RMI score =1 2nd try 5 x gammarus and 1 x leech.

  • 10 October 2025

    River Pool by Donna Davis

    Riverfly score 5 but numbers low (62 gammarus, 10 olives, 3 cased caddis)

  • 15 September 2025

    East Kyd Brook by Kirsty Blackman

    Even though there has been a lot of heavy rain recently the stones are still covered with a lot of silt.

  • 15 September 2025

    Kyd Brook S.W.O upstream by Kirsty Blackman

    Even though we have had lots of heavy rain the water levels are very low. The brook base has a lot of silt on the bottom. The EDM showed that the last discharge further upstream was for 45 minutes on the 4/9/25. This is amazing as discharges were more frequent until thames water carried out some works on the EDM a while back and since then they have been less frequent.

  • 15 September 2025

    Kyd Brook S.W.O downstream by Kirsty Blackman

    No update on the works Thames water are currently doing to fix the collapsed/damaged/blocked pipes that discharge from this S.W.O. At the moment there is a bypass inplace at a residents home which means that all the sewage and surface water are going into the sewage pipes, whilst Thames water replace/ reline or unblock the pipes. Once they have fixed a section, they then investigate further upstream the pipes and this will carry on until it's fixed. No one has any idea on how long this will take.

  • 15 September 2025

    Kyd Brook C.S.O by Kirsty Blackman

    The EDM showed that the C.S.O last discharged on the 4/9/25 for 45 mins, please see attached photos. This C.S.O used to discharge more frequently, a little while ago Thames Water carried our some works and the E.D.M was offline for a few weeks, now the C.S.O discharges less frequently.