Sewage Map

Trescott STW (SSTO)

Storm overflow operated by Severn Trent Water. The source names Smestow Brook as the receiving water.

14
Spills in 2025
81.8
Recorded hours
100%
Monitor operation
6
Years listed

The reported spill count was 16 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

Trescott STW (SSTO) recorded 14 spills in 2025. That is more than 54% of the 14,239 overflows in England with a reported figure, and ranks 6,208th nationally. Among Severn Trent Water overflows it ranks 884th of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Smestow Bk - source to conf Wom-Penn Bk waterbody it ranks 3rd of 27.

GroupRank by spillsMedian spillsMedian hours
This outlet–1481.8
England6,208th of 14,2391122.3
Severn Trent Water884th of 2,431816.2
Smestow Bk - source to conf Wom-Penn Bk3rd of 2720.5

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

276202002021212022182023302024142025
From 2020 to 2025, the reported count went from 276 to 14 spills. The highest count was 276 in 2020 and the lowest was 0 in 2021.
YearSpillsDurationMonitor operationSource
20251481.8 hours100%Official data
202430231.5 hours100%Official data
202318127.1 hours98.3%Official data
202221103.3 hours98.5%Official data
202100 hours99.6%Official data
20202766,544.7 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
Severn Trent Water
Outlet type
Storm tank at a wastewater treatment works
Permit
S/06/55363/R
Activity reference
A2
Grid reference
SO8550797623
Waterbody ID
GB109054049340Official 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 km south-east of the Old Perton 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 Trescott STW (SSTO)

Who operates Trescott STW (SSTO)?
Severn Trent Water is the operator named in the annual record. The permit reference is S/06/55363/R.
Where does Trescott STW (SSTO) discharge?
The source names Smestow Brook as the receiving water. This does not show how far a discharge travelled.
How many times did Trescott STW (SSTO) spill in 2025?
The 2025 return records 14 counted spill events and 81.8 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 Trescott STW (SSTO) 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 Trescott STW (SSTO)?
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 Trescott STW (SSTO) compare with other overflows?
Trescott STW (SSTO) recorded 14 spills in 2025. That is more than 54% of the 14,239 overflows in England with a reported figure, and ranks 6,208th nationally. Among Severn Trent Water overflows it ranks 884th of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Smestow Bk - source to conf Wom-Penn Bk waterbody it ranks 3rd of 27. 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.