Sewage Map

Fiddlers Hamlet STW

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

49
Spills in 2025
603
Recorded hours
99.9%
Monitor operation
5
Years listed

The reported spill count was 19 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

Fiddlers Hamlet STW recorded 49 spills in 2025. That is more than 87% of the 14,239 overflows in England with a reported figure, and ranks 1,699th nationally. Among Thames Water overflows it ranks 45th of 579; the median Thames Water overflow recorded 6 spills.

GroupRank by spillsMedian spillsMedian hours
This outlet–49603
England1,699th of 14,2391122.3
Thames Water45th of 579620.9

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

552021352022712023682024492025
From 2021 to 2025, the reported count went from 55 to 49 spills. The highest count was 71 in 2023 and the lowest was 35 in 2022.
YearSpillsDurationMonitor operationSource
202549603 hours99.9%Official data
2024681,079.3 hours99.9%Official data
2023711,020.5 hours95.7%Official data
202235393.6 hours99.3%Official data
202155541.4 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
Thames Water
Outlet type
Storm tank at a wastewater treatment works
Permit
CSSC.0295
Activity reference
A2
Grid reference
TL4781000380
Waterbody ID
GB106037028150Official 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 “Storm tank at WwTW”: storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.

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 2.4 km south-east of the Epping 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 Fiddlers Hamlet STW

Who operates Fiddlers Hamlet STW?
Thames Water is the operator named in the annual record. The permit reference is CSSC.0295.
Where does Fiddlers Hamlet STW discharge?
The source names The Brookhouse Brook as the receiving water. This does not show how far a discharge travelled.
How many times did Fiddlers Hamlet STW spill in 2025?
The 2025 return records 49 counted spill events and 603 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 99.9% of the reporting period, so the annual figures cover most of the year. They still do not measure discharge volume.
Is Fiddlers Hamlet STW 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 Fiddlers Hamlet STW?
The annual return lists the asset type as “Storm tank at WwTW”, which means storm tank at a wastewater treatment works. The overflow comes from storm storage at a treatment works.
How does Fiddlers Hamlet STW compare with other overflows?
Fiddlers Hamlet STW recorded 49 spills in 2025. That is more than 87% of the 14,239 overflows in England with a reported figure, and ranks 1,699th nationally. Among Thames Water overflows it ranks 45th of 579; the median Thames Water overflow recorded 6 spills. 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.