Sewage Map

Oldham sewage map and spill data

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

223
Outlets within 10 km
4,149
Spills in 2025
16,303
Recorded hours
215
Linked to a live feed

21 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 Oldham

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 223 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
    Rochdale WwTW

    United Utilities · River Roch

    104spills
  2. 2
    Rochdale Road/Collyhurst CSO

    United Utilities · The River Irk

    92spills
  3. 3
    Boothroyden Road CSO

    United Utilities · The River Irk

    90spills
  4. 4
    Oakenrod CSO

    United Utilities · River Roch

    87spills
  5. 5
    Oldham Road CSO

    United Utilities · Clvrt Sec of Sudden Brook

    84spills

Spills over time

The median outlet near Oldham recorded 7 spills in 2025, against 11 across England.

188 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 43 recorded more spills, 106 fewer and 39 the same. Together they went from 4,546 to 3,708 spills, a fall of 18%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
20252234,149711
20242195,2211019

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 Oldham

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

A13 outlets
B18 outlets
C18 outlets
D9 outlets
E2 outlets
F8 outlets
G7 outlets
H16 outlets
I1 outlet
J6 outlets
K5 outlets
L10 outlets
M33 outlets
N4 outlets
O10 outlets
P4 outlets
Q3 outlets
R10 outlets
S23 outlets
T7 outlets
U1 outlet
V2 outlets
W11 outlets
Y2 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 E63001192). The latest company reports come from each operator’s live feed and carry their own dates.

All sourcesHow the data worksReport pollution

Questions about Oldham

What area does this Oldham 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 Oldham?
223 outlet records report 4,149 spills in 2025. Every record on this page has a usable count.
Which water companies operate outlets near Oldham?
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 Oldham are linked to a live feed?
215 of the 223 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 Oldham record zero spills in 2025?
43 records report zero counted spills in 2025. 21 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 Oldham?
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.