Sewage Map

Stockport sewage map and spill data

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

208
Outlets within 10 km
4,512
Spills in 2025
18,266
Recorded hours
201
Linked to a live feed

23 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 Stockport

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 208 outlets

Open full map
  • Abney Hall CSO

    United Utilities · Micker Brook

    Current status unknown
    2025 annual record:12spills10.5hours
  • Altrincham Road / West End Avenue CSO

    United Utilities · Gatley Brook via SWS

    Current status unknown
    2025 annual record:3spills1.1hours
  • Chancel Lane CSO

    United Utilities · River Bollin

    Current status unknown
    2025 annual record:45spills94.2hours
  • Cheadle Golf Course CSO

    United Utilities · Micker Brook

    Current status unknown
    2025 annual record:36spills121.8hours
  • Dean Road CSO

    United Utilities · River Dean

    Current status unknown
    2025 annual record:2spills1hours
  • Mill Lane Cemetery CSO

    United Utilities · Chorlton Brook

    Current status unknown
    2025 annual record:15spills31.8hours
  • Outside 91 Styal Road CSO

    United Utilities · Gatley Brook via SWS

    Current status unknown
    2025 annual record:7spills41hours
  • Quarry Bank Mill CSO

    United Utilities · Tributary of River Bollin

    Current status unknown
    2025 annual record:15spills61.2hours
  • Rear of Knowle House CSO

    United Utilities · Tributary River Dean

    Current status unknown
    2025 annual record:48spills136.9hours
  • Reeman Court (Manhole H4)

    United Utilities · River Dean

    Current status unknown
    2025 annual record:9spills47.7hours

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
    Otterspool Road Combined Sewer Overflow

    United Utilities · The River Goyt

    117spills
  2. 2
    Hope Street CSO

    United Utilities · River Mersey

    84spills
  3. 3
    Carr Wood CSO

    United Utilities · Carr Brook

    83spills
  4. 3
    Rear of Kennedy Way CSO

    United Utilities · Denton Brook via SWS

    83spills
  5. 5
    STOCKPORT WwTW

    United Utilities · River Mersey

    82spills

Spills over time

The median outlet near Stockport recorded 9 spills in 2025, against 11 across England.

167 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 60 recorded more spills, 81 fewer and 26 the same. Together they went from 4,207 to 3,891 spills, a fall of 8%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
20252084,512911
20242074,9251119

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 Stockport

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

A9 outlets
B32 outlets
C27 outlets
D6 outlets
E4 outlets
F4 outlets
G3 outlets
H14 outlets
J5 outlets
K1 outlet
L10 outlets
M16 outlets
N5 outlets
O9 outlets
P9 outlets
Q1 outlet
R8 outlets
S18 outlets
T9 outlets
V2 outlets
W15 outlets
Y1 outlet

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 E63001378). The latest company reports come from each operator’s live feed and carry their own dates.

All sourcesHow the data worksReport pollution

Questions about Stockport

What area does this Stockport 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 Stockport?
208 outlet records report 4,512 spills in 2025. Every record on this page has a usable count.
Which water companies operate outlets near Stockport?
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 Stockport are linked to a live feed?
201 of the 208 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 7 show annual figures only.
Did any outlet near Stockport record zero spills in 2025?
32 records report zero counted spills in 2025. 23 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 Stockport?
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.