Sewage Map

Ashton-under-Lyne sewage map and spill data

265 storm overflows listed in the 2025 annual return sit within 10 km of the official Ashton-under-Lyne reference point. All are operated by United Utilities. Check the latest company report for each outlet below.

265
Outlets within 10 km
5,040
Spills in 2025
19,963
Recorded hours
257
Linked to a live feed

28 records show monitor operation below 90%. This is a straight-line distance search, not a drainage or boundary join. Annual figures describe the whole of 2025, not today.

Rivers and waters these outlets name

Receiving waters named in the annual return for outlets on this page, with the number of outlets for each.

Official place reference ↗How spills are countedSearch by postcode

Outlets near Ashton-under-Lyne

Filter by the latest company report or search within this area. 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 265 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
    GLOSSOP WwTW

    United Utilities · Tributary River Etherow

    102spills
  2. 2
    Rochdale Road/Collyhurst CSO

    United Utilities · The River Irk

    92spills
  3. 3
    Melandra Road PS

    United Utilities · Glossop Brook

    87spills
  4. 4
    Rear of Kennedy Way CSO

    United Utilities · Denton Brook via SWS

    83spills
  5. 5
    Woodlands Close CSO

    United Utilities · River Etherow

    82spills

Spills over time

The median outlet near Ashton-under-Lyne recorded 7 spills in 2025, against 11 across England.

219 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 46 recorded more spills, 127 fewer and 46 the same. Together they went from 5,511 to 4,386 spills, a fall of 20%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
20252655,040711
20242626,362919

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 near Ashton-under-Lyne

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

A14 outlets
B23 outlets
C27 outlets
D11 outlets
E2 outlets
F8 outlets
G9 outlets
H21 outlets
I1 outlet
J5 outlets
K4 outlets
L13 outlets
M32 outlets
N5 outlets
O11 outlets
P8 outlets
Q3 outlets
R12 outlets
S26 outlets
T9 outlets
V3 outlets
W18 outlets

Sources and dates

Outlet locations and spill figures come from the Environment Agency 2025 event duration monitoring annual return. The place reference point is the ONS built-up area point (ID E63001268). The latest company reports come from each operator’s live feed and carry their own dates.

All sourcesHow the data worksReport pollution

Questions about Ashton-under-Lyne

What area does this Ashton-under-Lyne page cover?
It shows outlets within 10 km of the official place reference point. It does not follow council, town or postcode boundaries. Use the postcode search on the map for a search around your own location.
How many spills were recorded near Ashton-under-Lyne?
265 outlet records report 5,040 spills in 2025. Every record on this page has a usable count.
Which water companies operate outlets near Ashton-under-Lyne?
United Utilities operates every outlet listed on this page. Open a company page to see its full outlet list and annual totals.
Which outlets near Ashton-under-Lyne are linked to a live feed?
257 of the 265 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 check the latest report and its date. The other 8 show annual figures only.
Did any outlet near Ashton-under-Lyne record zero spills in 2025?
54 records report zero counted spills in 2025. 28 records on this page have monitor operation below 90%, so check coverage before treating a low count as reliable.
Does nearby mean an outlet affected Ashton-under-Lyne?
No. This is a straight-line location search. The map does not model drainage, river flow or pollution travel, and a nearby outlet can discharge into a different watercourse.