Sewage Map

Hamsterley Mill sewage map and spill data

190 storm overflows listed in the 2025 annual return sit within 10 km of the official Hamsterley Mill reference point. All are operated by Northumbrian Water. Check the latest company report for each outlet below.

190
Outlets within 10 km
2,935
Spills in 2025
7,858
Recorded hours
189
Linked to a live feed

30 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 Hamsterley Mill

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 190 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
    Denton Road CSO Nc027

    Northumbrian Water · River Tyne

    78spills
  2. 1
    East Tanfield STW

    Northumbrian Water · Causey Burn

    78spills
  3. 3
    Market Lane CSO

    Northumbrian Water · River Derwent

    76spills
  4. 4
    Crookhall STW

    Northumbrian Water · Stockerley Burn, Tributary of

    62spills
  5. 5
    Kimberley Gardens CSO (Der 82)

    Northumbrian Water · Twizell Burn Tributary

    60spills

Spills over time

The median outlet near Hamsterley Mill recorded 8 spills in 2025, against 11 across England.

145 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 27 recorded more spills, 93 fewer and 25 the same. Together they went from 3,320 to 2,277 spills, a fall of 31%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
20251902,935811
20241894,1731319
2023136835720
202294134213
20211054943.519
2020414434.518

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 Hamsterley Mill

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

A8 outlets
B18 outlets
C26 outlets
D16 outlets
E6 outlets
F2 outlets
G4 outlets
H14 outlets
I1 outlet
J2 outlets
K3 outlets
L4 outlets
M10 outlets
N7 outlets
O3 outlets
P8 outlets
Q1 outlet
R8 outlets
S32 outlets
T6 outlets
V1 outlet
W10 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 E63000129). The latest company reports come from each operator’s live feed and carry their own dates.

All sourcesHow the data worksReport pollution

Questions about Hamsterley Mill

What area does this Hamsterley Mill 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 Hamsterley Mill?
190 outlet records report 2,935 spills in 2025. Every record on this page has a usable count.
Which water companies operate outlets near Hamsterley Mill?
Northumbrian Water operates every outlet listed on this page. Open a company page to see its full outlet list and annual totals.
Which outlets near Hamsterley Mill are linked to a live feed?
189 of the 190 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 1 show annual figures only.
Did any outlet near Hamsterley Mill record zero spills in 2025?
48 records report zero counted spills in 2025. 30 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 Hamsterley Mill?
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.