2021 Bathing Water Profile for The Serpentine - Hyde Park

http://environment.data.gov.uk/data/bathing-water-profile/uki1106-11940/2021:1

  • bathing water description
    The bathing area, known as the Lido, is a rectangular area about 100 metres long and 30 metres wide on the southern bank of the Serpentine. The beach is a hard man-made surface which has been fenced off for sunbathing, and gently slopes into the water.
  • controller name
    City of Westminster
  • county name
    London
  • ea investigations statement
    The Environment Agency monitoring found occasional problems with faecal pollution in this bathing water. One of the main sources of pollution to the Serpentine at Hyde Park is suspected to be from animal faecal pollution, mainly birds. Since 2019, the Environment Agency have investigated the Serpentine catchment in order to identify possible sources of pollution. The Environment Agency and the Royal Parks are jointly investigating the drainage system around the Serpentine, and reviewing bird and land management in Hyde Park. The Environment Agency and its partners are working together to investigate ways to improve the bathing water quality at the lido.
  • eso outfalls statement
    There are no overflows from the sewerage system into the Serpentine.
  • misconnections statement
    Modern sewerage systems have two separate systems, one takes foul sewage to sewage treatment, the other takes rainwater runoff through surface water drains to rivers, lakes and the sea. Misconnections occur when waste water pipes are plumbed into surface water drains instead of the foul water sewerage system. This can give rise to pollution when the waste water is discharged directly to the environment through the surface water drain. For example, a washing machine or toilet may be incorrectly plumbed so that it discharges to the surface drain rather than the foul sewage drain.
  • phytoplankton statement
    For the four year (2017-2020) assessment period where data is available, phytoplankton (microscopic algae) was not assessed as being sufficient to be objectionable, but was observed as being present on 15% of visits. Phytoplankton (microscopic algae) increase in number at certain times of the year. This process is known as a phytoplankton bloom. Blooms of phytoplankton, including blue-green algae can result in the water appearing discoloured or a foam forming on the water. If you observe a suspected bloom you are advised to not enter the water and to contact your local authority health contact for help and advice.
  • pollution risk forecast statement
    There are no active pollution risk forecasts made at this bathing water. However any bathing water has the potential to be affected by a pollution incident and if this occurs a pollution risk warning with associated advice against bathing will be issued on this website.
  • pollution risk forecasting
    false
  • pref label
    2021 Bathing Water Profile for The Serpentine - Hyde Park
  • sampling frequency
    20
  • season finish date
    2021-09-30
  • season start date
    2021-05-01
  • stw outfalls statement
    There are no permitted discharges to the Serpentine
  • version string
    1
  • visible pollution statement
    Environment Agency samplers make observations of litter present on the beach at every visit, this includes assessments of sewage debris, litter and tar. At The Serpentine - Hyde Park for the four year (2017-2020) assessment period where data is available, sewage debris was not noted at this site. Litter was not assessed as being sufficient to be objectionable, but was observed as being present on 33% of visits. Tarry residue was not noted at this site.
  • working with private owners statement
    The Environment Agency work with the bathing water operator to investigate and remediate any bathing water quality failures at the Serpentine.
  • zoi description
    The Serpentine is supplied by groundwater. The lake is in Hyde Park and receives rainwater runoff from the parkland surrounding it.
  • bathing water

    The Serpentine - Hyde Park

  • local authority
    City of Westminster
  • season interval

    p152 dT23 h59 m59 s

  • source
    row=0110
  • standard language collection

    2021 11940:1

    • algae general statement
      Seaweed (macroalgae) and phytoplankton (microscopic algae) are a natural part of the marine and freshwater environment. Below we note whether these have been recorded in quantities sufficient to be a nuisance.
    • eso outfalls general statement
      The majority of sewers in England are “combined sewers” and carry both sewage and surface water from roofs and drains. A storm overflow operates during heavy rainfall when the sewerage system becomes overwhelmed by the amount of surface water. The overflow prevents sewage from backing up pipes and flooding properties and gardens. An emergency overflow will only operate infrequently, for example due to pump failure or blockage in the sewerage system.
    • local authority general statement
      Heavy rain falling on pavements and roads often flows into surface water drains or highway drains, ending up in local rivers and ultimately the sea. The quality of bathing water may be adversely affected as a result of such events.
    • pollution management general statement
      It is the Environment Agency role to drive improvement of water quality at bathing waters that are at risk of failing higher standards. It is natural for water to run off the land to the sea. Water quality at a bathing water is dependent upon the type and area of land (the catchment) draining to the water and the activities undertaken in that catchment.
    • stw outfalls general statement
      Discharges from sewage treatment works have improved substantially in England since the 1980s.
  • web res image
    uki1106 11940 1 webres.jpg

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