Sewage Map

Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872)

Storm overflow operated by United Utilities. The source names Singing Clough Brook as the receiving water.

19
Spills in 2025
50.9
Recorded hours
77.2%
Monitor operation
2
Years listed
Current status unknown

We do not have a live report for this outlet. Its annual spill records are shown below.

Open official annual data ↗

How it compares in 2025

Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872) recorded 19 spills in 2025. That is more than 62% of the 14,239 overflows in England with a reported figure, and ranks 5,217th nationally. Among United Utilities overflows it ranks 1,030th of 2,270; the median United Utilities overflow recorded 15 spills. On the Irwell (Croal to Irk) waterbody it ranks 26th of 56.

The monitor worked for 77.2% of 2025, so this count may be low and its rank may understate activity.

GroupRank by spillsMedian spillsMedian hours
This outlet–1950.9
England5,217th of 14,2391122.3
United Utilities1,030th of 2,2701529.1
Irwell (Croal to Irk)26th of 561628

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

312024192025
From 2024 to 2025, the reported count went from 31 to 19 spills. The highest count was 31 in 2024 and the lowest was 19 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
20251950.9 hours77.2%Low coverageOfficial data
20243160 hours99.5%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
United Utilities
Outlet type
Storm overflow on the sewer network
Permit
016982823
Activity reference
A1
Grid reference
SD7382704740
Waterbody ID
GB112069061451Official 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 1.2 km south-east of the Farnworth reference point in the ONS built-up areas data.

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.

Open official source ↗

Other outlet records nearby

Questions about Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872)

Who operates Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872)?
United Utilities is the operator named in the annual record. The permit reference is 016982823.
Where does Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872) discharge?
The source names Singing Clough Brook as the receiving water. This does not show how far a discharge travelled.
How many times did Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872) spill in 2025?
The 2025 return records 19 counted spill events and 50.9 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 77.2% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
Is Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872) discharging right now?
This record is not matched to a company live feed, so we cannot show a current report. Only the annual figures are available for this outlet.
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 Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872)?
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 Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872) compare with other overflows?
Stonehill Road CSO, United Utilities (016982823 · A1 · UUP01872) recorded 19 spills in 2025. That is more than 62% of the 14,239 overflows in England with a reported figure, and ranks 5,217th nationally. Among United Utilities overflows it ranks 1,030th of 2,270; the median United Utilities overflow recorded 15 spills. On the Irwell (Croal to Irk) waterbody it ranks 26th of 56. 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.