Sewage Map

Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587)

Storm overflow operated by Northumbrian Water. The source names Wear (Saline Estuary) as the receiving water.

18
Spills in 2025
14.7
Recorded hours
84%
Monitor operation
2
Years listed
Current status unknown

Checking the latest monitor report…

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How it compares in 2025

Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587) recorded 18 spills in 2025. That is more than 60% of the 14,239 overflows in England with a reported figure, and ranks 5,407th nationally. Among Northumbrian Water overflows it ranks 567th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Wear waterbody it ranks 10th of 29.

The monitor worked for 84% of 2025, so this count may be low and its rank may understate activity.

GroupRank by spillsMedian spillsMedian hours
This outlet–1814.7
England5,407th of 14,2391122.3
Northumbrian Water567th of 1,5591115.6
Wear10th of 291216.6

Rank 1 has the most spills. Equal counts share a rank. Only overflows with a reported count are ranked. Counts do not measure volume, so a higher rank does not mean more sewage.

Annual spill history

232024182025
From 2024 to 2025, the reported count went from 23 to 18 spills. The highest count was 23 in 2024 and the lowest was 18 in 2025. The monitor worked for less than 90% of 2025, so that count may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
20251814.7 hours84%Low coverageOfficial data
20242320.8 hours99.8%Official data

A missing figure means the source did not provide a usable value. A zero is shown as zero. Monitor operation below 90% can make comparison less reliable.

Outlet details

Water company
Northumbrian Water
Outlet type
Storm overflow on the sewer network
Permit
245/1371
Activity reference
A1
Grid reference
NZ3925257487
Waterbody ID
GB510302402900Official waterbody record ↗
Location source
Official annual grid reference
Location precision
About 1 metres
Location note
Unknown

About the name and type

The annual return lists this asset as “SO on sewer network”: storm overflow on the sewer network. The return places this overflow on the sewer network.

The waterbody link opens the Environment Agency record for the exact ID in the return. It is a source lookup; we do not import its classification.

Where it is

The recorded position is about 1.5 km north-east of the Sunderland reference point in the ONS built-up areas data.

Designated bathing waters within 3 km in a straight line:

Distance does not show that water from this outlet reaches a bathing water. Check the official bathing-water profile for its classification and advice.

Area and water pages

Check the official record

Public access to this outlet is unknown. Do not enter restricted land or use this page as a route guide.

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Other outlet records nearby

Questions about Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587)

Who operates Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587)?
Northumbrian Water is the operator named in the annual record. The permit reference is 245/1371.
Where does Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587) discharge?
The source names Wear (Saline Estuary) as the receiving water. This does not show how far a discharge travelled.
How many times did Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587) spill in 2025?
The 2025 return records 18 counted spill events and 14.7 hours of recorded discharge. Spills are counted with the 12/24-hour method, so this is not a count of every start signal.
Can I trust the 2025 figures for this outlet?
The monitor worked for 84% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
Is Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587) discharging right now?
This record is linked to a company live feed. The panel above shows the latest report we hold, with its date. That report can be old, and the monitor can be offline, so check the date before relying on it. A report that no discharge is taking place is not a water-quality result.
How accurate is the map marker?
The marker comes from the grid reference in the official annual return, which is accurate to about 1 metres. It shows the recorded outlet position, not the extent of any discharge.
What kind of outlet is Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587)?
The annual return lists the asset type as “SO on sewer network”, which means storm overflow on the sewer network. The return places this overflow on the sewer network.
How does Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587) compare with other overflows?
Gill Cemetery CSO (Su061), Northumbrian Water (245/1371 · A1 · NWL00587) recorded 18 spills in 2025. That is more than 60% of the 14,239 overflows in England with a reported figure, and ranks 5,407th nationally. Among Northumbrian Water overflows it ranks 567th of 1,559; the median Northumbrian Water overflow recorded 11 spills. On the Wear waterbody it ranks 10th of 29. Ranks compare counted spill events only. They do not compare volume or harm.
Does zero spills mean the water was safe?
No. A zero means the annual return recorded zero counted spill events for this outlet and year. It is not a water-quality test, and pollution can come from other sources.