Sewage Map

Mardyke (West Tributary) sewage map and spill data

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

3
Outlet records
8
Spills in 2025
43
Recorded hours
3
Linked to a live feed

Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Mardyke (West Tributary)

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 3 of 3 outlets

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  • Upminster STW

    Anglian Water · Mar Dyke West

    Current status unknown
    2025 annual record:5spills35.4hours
  • Warley East Sp

    Anglian Water · Mardyke W Tributary Tributary Thames Est

    Current status unknown
    2025 annual record:0spills0hours
  • Warley-Warley Street Sp

    Anglian Water · Mardyke Tributary of Thames Estuary

    Current status unknown
    2025 annual record:3spills7.5hours

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
    Upminster STW

    Anglian Water

    5spills
  2. 2
    Warley-Warley Street Sp

    Anglian Water

    3spills
  3. 3
    Warley East Sp

    Anglian Water

    0spills

Spills over time

The median outlet on Mardyke (West Tributary) recorded 3 spills in 2025, against 11 across England.

1 outlet has a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 1 fewer and 0 the same. Together it went from 7 to 0 spills, a fall of 100%.

YearOutlets with a countTotal spillsMedian per outletEngland median
202538311
2024350919
20233381020
202222110.513
202118819

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 Mardyke (West Tributary)

3 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: GB106037028080. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Mardyke (West Tributary)

Which outlets are linked to Mardyke (West Tributary)?
The source links 3 outlet records to waterbody GB106037028080. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Mardyke (West Tributary)?
3 records report 8 spills in 2025 and 43 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 Mardyke (West Tributary)?
Anglian Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Mardyke (West Tributary) are linked to a live feed?
3 of the 3 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 Mardyke (West Tributary)?
Every record with a monitor operation figure shows 90% or more for 2025.
Does this show if Mardyke (West Tributary) is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.