Sewage Map

Dorset / Hampshire sewage map and spill data

21 storm overflows listed in the 2025 annual return name this water. 2 companies operate them. Check the latest company report for each outlet below.

21
Outlet records
177
Spills in 2025
417
Recorded hours
20
Linked to a live feed

Annual figures describe the whole of 2025, not today.

Water companies on this water

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Dorset / Hampshire

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 21 outlets

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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
    Poole Shore Road

    Wessex Water

    25spills
  2. 2
    Swanage Marine Parade Tunnel

    Wessex Water

    20spills
  3. 3
    Southbourne Hengistbury Head

    Wessex Water

    17spills
  4. 4
    Coastguard Lane Freshwater Bay CEO - 108521

    Southern Water

    15spills
  5. 4
    Osmington Pontins

    Wessex Water

    15spills

Spills over time

The median outlet on Dorset / Hampshire recorded 7 spills in 2025, against 11 across England.

20 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 3 recorded more spills, 11 fewer and 6 the same. Together they went from 276 to 177 spills, a fall of 36%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
202521177711
202420276919
2023162511120
202216128713
2021319619

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 Dorset / Hampshire

21 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: GB620705550000. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Dorset / Hampshire

Which outlets are linked to Dorset / Hampshire?
The source links 21 outlet records to waterbody GB620705550000. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Dorset / Hampshire?
21 records report 177 spills in 2025 and 417 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 Dorset / Hampshire?
2 companies operate listed outlets: Wessex Water, Southern Water. Each outlet page names its operator and permit reference.
Which outlets on Dorset / Hampshire are linked to a live feed?
20 of the 21 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 Dorset / Hampshire?
Every record with a monitor operation figure shows 90% or more for 2025.
Does this show if Dorset / Hampshire is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.