Witcham-The Slade Mh90 Ovsso
Storm overflow operated by Anglian Water. The source names Counter Drain (Suttin and Mepal IDB incl, Cranbrook Drain) as the receiving water.
- 2
- Spills in 2025
- 4.8
- Recorded hours
- 45.5%
- Monitor operation
- 5
- Years listed
Checking the latest monitor report…
How it compares in 2025
Witcham-The Slade Mh90 Ovsso recorded 2 spills in 2025. That is more than 21% of the 14,239 overflows in England with a reported figure, and ranks 10,428th nationally. Among Anglian Water overflows it ranks 959th of 1,438; the median Anglian Water overflow recorded 6 spills. On the Old Bedford River / River Delph (inc The Hundred Foot Washes) waterbody it ranks 9th of 15.
The monitor worked for 45.5% of 2025, so this count may be low and its rank may understate activity.
| Group | Rank by spills | Median spills | Median hours |
|---|---|---|---|
| This outlet | – | 2 | 4.8 |
| England | 10,428th of 14,239 | 11 | 22.3 |
| Anglian Water | 959th of 1,438 | 6 | 13.5 |
| Old Bedford River / River Delph (inc The Hundred Foot Washes) | 9th of 15 | 3 | 20.3 |
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 | 2 | 4.8 hours | 45.5%Low coverage | Official data |
| 2024 | 9 | 18.3 hours | 32.4%Low coverage | Official data |
| 2023 | 0 | 0 hours | 100% | Official data |
| 2022 | Unknown | Unknown | Unknown | Official data |
| 2021 | Unknown | Unknown | Unknown | 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
- Anglian Water
- Outlet type
- Storm overflow on the sewer network
- Permit
- AW1NF999
- Activity reference
- A1
- Grid reference
- TL4640079000
- Waterbody ID
- GB205033000060Official 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 1.1 km south of the Witcham 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
- Witcham WrcCurrent status unknown
Anglian Water · Witcham Catchwater River Ouse
- Witcham WrcCurrent status unknown
Anglian Water · Witcham Catchwater River Ouse
- Sutton-Station Rd OvCurrent status unknown
Anglian Water · unnamed trib South Fen Drain
- Wentworth-College Farm SpCurrent status unknown
Anglian Water · Folly River
Questions about Witcham-The Slade Mh90 Ovsso
- Who operates Witcham-The Slade Mh90 Ovsso?
- Anglian Water is the operator named in the annual record. The permit reference is AW1NF999.
- Where does Witcham-The Slade Mh90 Ovsso discharge?
- The source names Counter Drain (Suttin and Mepal IDB incl, Cranbrook Drain) as the receiving water. This does not show how far a discharge travelled.
- How many times did Witcham-The Slade Mh90 Ovsso spill in 2025?
- The 2025 return records 2 counted spill events and 4.8 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 45.5% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
- Is Witcham-The Slade Mh90 Ovsso 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 Witcham-The Slade Mh90 Ovsso?
- 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 Witcham-The Slade Mh90 Ovsso compare with other overflows?
- Witcham-The Slade Mh90 Ovsso recorded 2 spills in 2025. That is more than 21% of the 14,239 overflows in England with a reported figure, and ranks 10,428th nationally. Among Anglian Water overflows it ranks 959th of 1,438; the median Anglian Water overflow recorded 6 spills. On the Old Bedford River / River Delph (inc The Hundred Foot Washes) waterbody it ranks 9th of 15. 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.