Sewage Map

Wandle (Croydon to Wandsworth) and the Graveney sewage map and spill data

28 storm overflows listed in the 2025 annual return name this water. All are operated by Thames Water. Check the latest company report for each outlet below.

28
Outlet records
159
Spills in 2025
303
Recorded hours
26
Linked to a live feed

2 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Wandle (Croydon to Wandsworth) and the Graveney

Filter by the latest company report. The map follows the filters.

Filters apply to the map and list. Recent stops need a current report and a recorded stop time. They do not show whether water is safe.

Showing 10 of 28 outlets

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  • Beddington STW

    Thames Water · Beddington effluent carrier/Wa

    Current status unknown
    2025 annual record:5spills13.5hours
  • Bell lane creek

    Thames Water · Wandle

    Current status unknown
    2025 annual record:1spill1.7hours
  • Canterbury road, thornton heath

    Thames Water · Wandle

    Current status unknown
    2025 annual record:0spills0hours
  • Church Road

    Thames Water

    Current status unknown
    2025 annual record:0spills0hours
  • Dorking Road (Tadworth) SPS

    Thames Water · Buckland Brook

    Current status unknown
    2025 annual record:10spills51.5hours
  • Duntshill road

    Thames Water · River Wandle

    Current status unknown
    2025 annual record:1spill4.3hours
  • Frogmore storm

    Thames Water · Bell Lane Creek (Estuarine)

    Current status unknown
    2025 annual record:2spills13.5hours
  • Gap road (cemetery)

    Thames Water · River Wandle

    Current status unknown
    2025 annual record:0spills0hours
  • Home Park Road

    Thames Water

    Current status unknown
    2025 annual record:3spills3.8hours
  • Leverson Street

    Thames Water · Graveney

    Current status unknown
    2025 annual record:0spills0hours

Most recorded spills in 2025

The highest 2025 counts among these outlets. A count is events, not volume or harm. Equal counts share a rank.

  1. 1
    Streatham & balham storm relief

    Thames Water

    51spills
  2. 2
    Streatham storm relief E

    Thames Water

    27spills
  3. 3
    Streatham & balham storm relief

    Thames Water

    18spills
  4. 3
    Streatham storm relief B

    Thames Water

    18spills
  5. 5
    Streatham storm relief A

    Thames Water

    11spills

Spills over time

The median outlet on Wandle (Croydon to Wandsworth) and the Graveney recorded 1 spill in 2025, against 11 across England.

24 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 2 recorded more spills, 18 fewer and 4 the same. Together they went from 325 to 150 spills, a fall of 54%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
202528159111
202428341219
2023938320

Earlier returns list fewer of these outlets, so totals are not comparable between years. The median per outlet and the like-for-like change are fairer comparisons. Counts are events, not volume.

All outlet records on Wandle (Croydon to Wandsworth) and the Graveney

28 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.

Sources and dates

Outlet locations, waterbody links and spill figures come from the Environment Agency 2025 event duration monitoring annual return. The latest company reports come from each operator’s live feed and carry their own dates. Waterbody ID: GB106039023460. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Wandle (Croydon to Wandsworth) and the Graveney

Which outlets are linked to Wandle (Croydon to Wandsworth) and the Graveney?
The source links 28 outlet records to waterbody GB106039023460. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Wandle (Croydon to Wandsworth) and the Graveney?
28 records report 159 spills in 2025 and 303 recorded hours. All listed records have a usable count. Outlets can discharge at the same time, so the hours are not the time the whole water was affected.
Who is responsible for the outlets on Wandle (Croydon to Wandsworth) and the Graveney?
Thames Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Wandle (Croydon to Wandsworth) and the Graveney are linked to a live feed?
26 of the 28 records are matched to a monitor in a company live feed. A link does not mean the monitor is working now. Use the status filters above to see the latest report for each outlet, with its date. The rest show annual figures only.
How complete is the monitoring for Wandle (Croydon to Wandsworth) and the Graveney?
2 of the listed records have monitor operation below 90% for 2025. Events can be missed when a monitor is not working, so low counts from those outlets may understate activity.
Does this show if Wandle (Croydon to Wandsworth) and the Graveney is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.