Sewage Map

Phillips Road CSO

Storm overflow operated by United Utilities. The source names Tributary of River Blakewater V SWS as the receiving water.

90
Spills in 2025
215.3
Recorded hours
99.2%
Monitor operation
2
Years listed

The reported spill count was 43 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

Checking the latest monitor report…

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How it compares in 2025

Phillips Road CSO recorded 90 spills in 2025. That is more than 97% of the 14,239 overflows in England with a reported figure, and ranks 355th nationally. Among United Utilities overflows it ranks 104th of 2,270; the median United Utilities overflow recorded 15 spills. On the Blakewater waterbody it ranks 1st of 36.

GroupRank by spillsMedian spillsMedian hours
This outlet–90215.3
England355th of 14,2391122.3
United Utilities104th of 2,2701529.1
Blakewater1st of 364.52.9

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

1332024902025
From 2024 to 2025, the reported count went from 133 to 90 spills. The highest count was 133 in 2024 and the lowest was 90 in 2025.
YearSpillsDurationMonitor operationSource
202590215.3 hours99.2%Official data
2024133276.5 hours98.3%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
01BBN0060
Activity reference
A1
Grid reference
SD6979029590
Waterbody ID
GB112071065310Official 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 2.3 km north-east of the Blackburn (Blackburn with Darwen) 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.

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Other outlet records nearby

Questions about Phillips Road CSO

Who operates Phillips Road CSO?
United Utilities is the operator named in the annual record. The permit reference is 01BBN0060.
Where does Phillips Road CSO discharge?
The source names Tributary of River Blakewater V SWS as the receiving water. This does not show how far a discharge travelled.
How many times did Phillips Road CSO spill in 2025?
The 2025 return records 90 counted spill events and 215.3 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 99.2% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Phillips Road CSO 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 Phillips Road CSO?
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 Phillips Road CSO compare with other overflows?
Phillips Road CSO recorded 90 spills in 2025. That is more than 97% of the 14,239 overflows in England with a reported figure, and ranks 355th nationally. Among United Utilities overflows it ranks 104th of 2,270; the median United Utilities overflow recorded 15 spills. On the Blakewater waterbody it ranks 1st of 36. 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.