Sewage Map

Low hall farm storm tanks,walthamstow

Storm overflow operated by Thames Water. The source names Dagenham Brook as the receiving water.

5
Spills in 2025
30.7
Recorded hours
100%
Monitor operation
3
Years listed

The reported spill count was 15 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

Low hall farm storm tanks,walthamstow recorded 5 spills in 2025. That is more than 34% of the 14,239 overflows in England with a reported figure, and ranks 8,927th nationally. Among Thames Water overflows it ranks 301st of 579; the median Thames Water overflow recorded 6 spills. On the Lee (Tottenham Locks to Bow Locks/Three Mills Locks) waterbody it ranks 3rd of 8.

GroupRank by spillsMedian spillsMedian hours
This outlet–530.7
England8,927th of 14,2391122.3
Thames Water301st of 579620.9
Lee (Tottenham Locks to Bow Locks/Three Mills Locks)3rd of 815.2

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

18202320202452025
From 2023 to 2025, the reported count went from 18 to 5 spills. The highest count was 20 in 2024 and the lowest was 5 in 2025.
YearSpillsDurationMonitor operationSource
2025530.7 hours100%Official data
202420144.8 hours100%Official data
20231877.5 hours100%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
CSBC.0084
Activity reference
1 activity on permit
Grid reference
TQ3631088060
Waterbody ID
GB106038077852Official 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 south-west of the Waltham Forest 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 Low hall farm storm tanks,walthamstow

Who operates Low hall farm storm tanks,walthamstow?
Thames Water is the operator named in the annual record. The permit reference is CSBC.0084.
Where does Low hall farm storm tanks,walthamstow discharge?
The source names Dagenham Brook as the receiving water. This does not show how far a discharge travelled.
How many times did Low hall farm storm tanks,walthamstow spill in 2025?
The 2025 return records 5 counted spill events and 30.7 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 100% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Low hall farm storm tanks,walthamstow 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 Low hall farm storm tanks,walthamstow?
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 Low hall farm storm tanks,walthamstow compare with other overflows?
Low hall farm storm tanks,walthamstow recorded 5 spills in 2025. That is more than 34% of the 14,239 overflows in England with a reported figure, and ranks 8,927th nationally. Among Thames Water overflows it ranks 301st of 579; the median Thames Water overflow recorded 6 spills. On the Lee (Tottenham Locks to Bow Locks/Three Mills Locks) 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.