Sewage Map

Blackhall Mill sewage map and spill data

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

159
Outlets within 10 km
2,091
Spills in 2025
5,825
Recorded hours
159
Linked to a live feed

25 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 Blackhall 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 159 outlets

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  • 20 Derwent Dale Cutlers Rd CSO

    Northumbrian Water · River Derwent

    Current status unknown
    2025 annual record:1spill0hours
  • 5 South Street CSO, Crookhall

    Northumbrian Water · Stockerley Burn Tributary

    Current status unknown
    2025 annual record:1spill0hours
  • A692 CSO

    Northumbrian Water · Dene Burn

    Current status unknown
    2025 annual record:17spills7.7hours
  • Adderlane School CSO (Td035)

    Northumbrian Water · Adderlane Gill Tributary Park Burn

    Current status unknown
    2025 annual record:0spills0hours
  • Andrews House

    Northumbrian Water · Tyne (Unamed Tributary)

    Current status unknown
    2025 annual record:10spills6.1hours
  • Armonside Rd Connolly Terrace CSO

    Northumbrian Water · River Derwent

    Current status unknown
    2025 annual record:22spills99.1hours
  • Beaumont Wood, Eltringham CSO

    Northumbrian Water · Cold Kettle Burn

    Current status unknown
    2025 annual record:0spills0hours
  • Berry Edge Road CSO Der096

    Northumbrian Water · Unnamed Tributary of Dene Burn

    Current status unknown
    2025 annual record:21spills10.6hours
  • Blackhall Mill Pumping Station

    Northumbrian Water · Tongue Burn (Derwent)

    Current status unknown
    2025 annual record:3spills0.1hours
  • Broomley STW CSO

    Northumbrian Water · Smithy Burn

    Current status unknown
    2025 annual record:4spills37.6hours

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
    East Tanfield STW

    Northumbrian Water · Causey Burn

    78spills
  2. 2
    Crookhall STW

    Northumbrian Water · Stockerley Burn, Tributary of

    62spills
  3. 3
    Blaydon Bank CSO

    Northumbrian Water · Tyne Estuary

    55spills
  4. 4
    Heddon On The Wall STW

    Northumbrian Water · River Tyne · monitor coverage 83.5%, below 90%

    53spills
  5. 5
    Dipton STW

    Northumbrian Water · Dipton Burn

    52spills

Spills over time

The median outlet near Blackhall Mill recorded 5 spills in 2025, against 11 across England.

122 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 21 recorded more spills, 78 fewer and 23 the same. Together they went from 2,591 to 1,684 spills, a fall of 35%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
20251592,091511
20241583,20010.519
2023116095720
202294134213
202195324519
20203753318

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 Blackhall Mill

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

A8 outlets
B16 outlets
C23 outlets
D12 outlets
E6 outlets
F2 outlets
G4 outlets
H13 outlets
I1 outlet
J1 outlet
K2 outlets
L3 outlets
M6 outlets
N5 outlets
O5 outlets
P8 outlets
Q1 outlet
R8 outlets
S23 outlets
T4 outlets
V1 outlet
W7 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 E63000128). The latest company reports come from each operator’s live feed and carry their own dates.

All sourcesHow the data worksReport pollution

Questions about Blackhall Mill

What area does this Blackhall 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 Blackhall Mill?
159 outlet records report 2,091 spills in 2025. Every record on this page has a usable count.
Which water companies operate outlets near Blackhall 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 Blackhall Mill are linked to a live feed?
159 of the 159 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.
Did any outlet near Blackhall Mill record zero spills in 2025?
41 records report zero counted spills in 2025. 25 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 Blackhall 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.