Sewage Map

Francis Road Spill

Storm overflow operated by Thames Water. The receiving water is not named in this record.

11
Spills in 2025
13.8
Recorded hours
100%
Monitor operation
2
Years listed

The reported spill count was 10 lower than in 2024. This compares event counts, not discharge volume.

Current status unknown

Checking the latest monitor report…

Open official annual data ↗

How it compares in 2025

Francis Road Spill recorded 11 spills in 2025. That is more than 49% of the 14,239 overflows in England with a reported figure, and ranks 6,918th nationally. Among Thames Water overflows it ranks 226th of 579; the median Thames Water overflow recorded 6 spills. On the Wealdstone Brook waterbody it ranks 3rd of 8.

GroupRank by spillsMedian spillsMedian hours
This outlet–1113.8
England6,918th of 14,2391122.3
Thames Water226th of 579620.9
Wealdstone Brook3rd of 85.514.4

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

212024112025
From 2024 to 2025, the reported count went from 21 to 11 spills. The highest count was 21 in 2024 and the lowest was 11 in 2025.
YearSpillsDurationMonitor operationSource
20251113.8 hours100%Official data
20242132.1 hours99.2%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
Thames Water
Outlet type
Storm overflow on the sewer network
Permit
Permit applied for
Activity reference
Unknown
Grid reference
TQ1654488775
Waterbody ID
GB106039022940Official 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 km south-east of the Harrow 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 Francis Road Spill

Who operates Francis Road Spill?
Thames Water is the operator named in the annual record. The permit reference is Permit applied for.
Where does Francis Road Spill discharge?
The annual record does not provide a usable receiving-water name.
How many times did Francis Road Spill spill in 2025?
The 2025 return records 11 counted spill events and 13.8 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 100% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Francis Road Spill 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 Francis Road Spill?
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 Francis Road Spill compare with other overflows?
Francis Road Spill recorded 11 spills in 2025. That is more than 49% of the 14,239 overflows in England with a reported figure, and ranks 6,918th nationally. Among Thames Water overflows it ranks 226th of 579; the median Thames Water overflow recorded 6 spills. On the Wealdstone Brook waterbody it ranks 3rd of 8. 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.