Northwood - Prime St/Cardwell St (CSO)
Storm overflow operated by Severn Trent Water. The source names Tributary of the Caldon Canal as the receiving water.
- 21
- Spills in 2025
- 17.7
- Recorded hours
- 34.1%
- Monitor operation
- 2
- Years listed
Checking the latest monitor report…
How it compares in 2025
Northwood - Prime St/Cardwell St (CSO) recorded 21 spills in 2025. That is more than 64% of the 14,239 overflows in England with a reported figure, and ranks 4,856th nationally. Among Severn Trent Water overflows it ranks 613th of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Trent - Ford Green Bk to Fowlea Bk waterbody it ranks 6th of 24.
The monitor worked for 34.1% of 2025, so this count may be low and its rank may understate activity.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 21 | 17.7 |
| England | 4,856th of 14,239 | 11 | 22.3 |
| Severn Trent Water | 613th of 2,431 | 8 | 16.2 |
| Trent - Ford Green Bk to Fowlea Bk | 6th of 24 | 7.5 | 4.9 |
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
| Year | Spills | Duration | Monitor operation | Source |
|---|---|---|---|---|
| 2025 | 21 | 17.7 hours | 34.1%Low coverage | Official data |
| 2024 | 29 | 17 hours | 100% | 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 overflow on the sewer network
- Permit
- T/01/36215/O
- Activity reference
- A1
- Grid reference
- SJ8932648292
- Waterbody ID
- GB104028053301Official 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 4.5 km west of the Werrington 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
- Northwood - Prime St/Lockley St (CSO)Current status unknown
Severn Trent Water · Tributary of the Caldon Canal
- Northwood - Rose Street 106 (CSO)Current status unknown
Severn Trent Water · Tributary of the Caldon Canal
- Stoke-On-Trent - Cromer Road (CSO)Current status unknown
Severn Trent Water · Caldon Canal
- ABBEY HULTON - GREASLEY/HOLEHOUSE RDs (CSO)Current status unknown
Severn Trent Water · Tributary of River Trent
Questions about Northwood - Prime St/Cardwell St (CSO)
- Who operates Northwood - Prime St/Cardwell St (CSO)?
- Severn Trent Water is the operator named in the annual record. The permit reference is T/01/36215/O.
- Where does Northwood - Prime St/Cardwell St (CSO) discharge?
- The source names Tributary of the Caldon Canal as the receiving water. This does not show how far a discharge travelled.
- How many times did Northwood - Prime St/Cardwell St (CSO) spill in 2025?
- The 2025 return records 21 counted spill events and 17.7 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 34.1% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
- Is Northwood - Prime St/Cardwell St (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 Northwood - Prime St/Cardwell St (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 Northwood - Prime St/Cardwell St (CSO) compare with other overflows?
- Northwood - Prime St/Cardwell St (CSO) recorded 21 spills in 2025. That is more than 64% of the 14,239 overflows in England with a reported figure, and ranks 4,856th nationally. Among Severn Trent Water overflows it ranks 613th of 2,431; the median Severn Trent Water overflow recorded 8 spills. On the Trent - Ford Green Bk to Fowlea Bk waterbody it ranks 6th of 24. 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.