Dataset

Ravensbourne Catchment Improvement Group's Water Quality Working Group

Dataset by Thames21

Dataset summary

Observations

  • 20 August 2025

    Kyd Brook S.W.O downstream by Kirsty Blackman

    There have often been pollution problems with this S.W.O, which mainly meant that there were obvious signs of laundry detergent, probably due to a misconnection. This had been reported and investigated by Thames Water(the local water authority for this area) but unfortunately nothing changed. Then on 4/7/25 the pollution took a dramatic change as it included sewage, fortunately the environment agency had a new way of reporting via their website. Thames water investigated finding that one of the surface water drains had a crack in it and one of the sewage drains had collapsed in places and somehow sewage was seeping into the surface water drain and discharging from the S.W.O into Kyd Brook. Thames water were in a residential street for several weeks repairing the drains meaning that some very understanding residents have had their back gardens excavated for the pipes to be replaced and relined in various places before moving upstream in the pipes to discover any more problems. Currently there is a temporary halt to works whilst another resident was away and will commence soon. In the meantime in another house there is a temporary bypass inplace meaning that the surface water drain is connected to the sewer drain. We are hoping that this will be resolved soon and there will be no more pollution issues with this site.

  • 20 August 2025

    Kyd Brook S.W.O upstream by Kirsty Blackman

    I am pleased to say that it looks like Thames water have finally resolved the pollution issues that have dogged this S.W.O since I started water monitoring. Only time will tell for sure but I have my fingers crossed.

  • 20 August 2025

    Kyd Brook C.S.O by Kirsty Blackman

    There has been no discharge from the C.S.O since 21/7/25 and the weather has been very dry. The water level is low but clear.

  • 12 August 2025

    Chinbrook wetlands inlet pond by Anne Slater

    Phosphate reading was flashing 2.5

  • 8 August 2025

    Kyd Brook Hawkswood Estate by Kirsty Blackman

    Water levels are very low and slow moving, the base is covered in lots of silt. This site is also a riverfly monitoring site, today's results are Gammarus x 6 RMI Score = 1 Plus stickleback/fry x 1, damsel flies x 2

  • 6 August 2025

    Kyd Brook S.W.O downstream by Kirsty Blackman

    Pleased to report that there are no signs of pollution. Thames water are still in a residential road nearby where the drains had collapsed causing sewage to enter Kyd Brook. The tanker lorry has now gone but gardens have been dug up for new pipes to be fitted.

  • 6 August 2025

    Kyd Brook C.S.O by Kirsty Blackman

    The E.D.M shows that the last discharge was on the 21/7/25 19:15 - 20:00 = 45 mins.

  • 22 July 2025

    Kyd Brook S.W.O downstream by Kirsty Blackman

    As already reported there has been a known misconnection on this S.W.O ever since I've been water monitoring but Thames water had been unable to resolve the problem but have investigated previously. On 26/6/25 there was possible sewage fungus but the problem worsened significantly on 4/7/25, when there was sewage smelling discoloured water discharging from the S.W.O into Kyd Brook even though it was and had been dry. These were all reported and Thames water investigated that evening. Today there was signs still of pollution, please see the picture of discoloured water but I haven't reported it because it's being dealt with and the ammonia levels are not high. Thames water are still in a nearby residential road and some unfortunate residents are having parts of their gardens dug up as the pipe has collapsed and is leaching into the surface water pipe and needs replacing. There is a tanker 24hrs a day on site pumping when necessary which is causing understandable disturbance. To date there is no end date on when works will be completed. From an observer of events certain things have amazed me. The gardens are being dug by hand when there is access for a digger. Residents are being told that once a pipe has been replaced, then cameras will go back in to check if there is any further problems, hence no timescale on when works will be completed. The residents are being amazing as they obviously want this problem to be resolved but can't wait for it it be over, understandably.

  • 22 July 2025

    East Kyd Brook by Kirsty Blackman

    There has been heavy rain recently but the water level is still low and the stones are still covered in silt although not as much as usual.

  • 22 July 2025

    Kyd Brook C.S.O by Kirsty Blackman

    The E.D.M showed that the C.S.O discharged into Kyd Brook twice recently and is presently offline which is unhelpful especially as there has been heavy downpours and this is normally when they discharge into water ways. Last known discharges 19/7/25 07:00-08:30 = 1hr 30mins 21/7/25 19:15-20:00 = 45 mins

  • 15 July 2025

    Kyd Brook S.W.O upstream by Kirsty Blackman

    There has been an ongoing pollution at this S.W.O since I started water monitoring back in 2023, this started as laundry detergent. Recently there has been the smell of sewage combined with laundry detergent. This has been reported please see previous notes. Currently this pollution is being investigated by Thames water and will hopefully be fixed soon, also stated in previous notes. This morning when I visited the S.W.O there was a smell of sewage combined with laundry detergent and discharge coming from the S.W.O. After taking samples and photos this has been reported to Thames Water and the environment agency ref 02408224. I recieved an email from Thames water saying that they will investigate further. The tanker in a residential road is now going more frequently which is causing distress to the residents. I do hope this is finally resolved soon.

  • 15 July 2025

    Kyd Brook S.W.O downstream by Kirsty Blackman

    There has been an ongoing pollution at this S.W.O since I started water monitoring back in 2023, this started as laundry detergent. Recently there has been the smell of sewage combined with laundry detergent. This has been reported please see previous notes. Currently this pollution is being investigated by Thames water and will hopefully be fixed soon, also stated in previous notes. This morning when I visited the S.W.O there was a smell of sewage combined with laundry detergent and discharge coming from the S.W.O. After taking samples and photos this has been reported to Thames Water and the environment agency ref 02408224. I recieved an email from Thames water saying that they will investigate further. The tanker in a residential road is now going more frequently which is causing distress to the residents. I do hope this is finally resolved soon.