Sewage Map

Norfolk Street Combined Sewer Overflow

Storm overflow operated by Anglian Water. The source names Maud Foster Drain as the receiving water.

1
Spills in 2025
0.7
Recorded hours
61%
Monitor operation
5
Years listed
Current status unknown

Checking the latest monitor report…

Open official annual data ↗

How it compares in 2025

Norfolk Street Combined Sewer Overflow recorded 1 spill in 2025. That is more than 15% of the 14,239 overflows in England with a reported figure, and ranks 11,130th nationally. Among Anglian Water overflows it ranks 1,063rd of 1,438; the median Anglian Water overflow recorded 6 spills. On the Maud Foster and Fen Catchwater Drains waterbody it ranks 4th of 4.

The monitor worked for 61% of 2025, so this count may be low and its rank may understate activity.

GroupRank by spillsMedian spillsMedian hours
This outlet–10.7
England11,130th of 14,2391122.3
Anglian Water1,063rd of 1,438613.5
Maud Foster and Fen Catchwater Drains4th of 448

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

820212320221320238202412025
From 2021 to 2025, the reported count went from 8 to 1 spills. The highest count was 23 in 2022 and the lowest was 1 in 2025. The monitor worked for less than 90% of 2022, 2025, so those counts may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
202510.7 hours61%Low coverageOfficial data
202486.8 hours100%Official data
2023138.8 hours100%Official data
2022234.2 hours87.1%Low coverageOfficial data
202181.1 hours97.6%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
ANNNF13733
Activity reference
A1
Grid reference
TF3314044590
Waterbody ID
GB205030056465Official 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 0.9 km north of the Boston 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 Norfolk Street Combined Sewer Overflow

Who operates Norfolk Street Combined Sewer Overflow?
Anglian Water is the operator named in the annual record. The permit reference is ANNNF13733.
Where does Norfolk Street Combined Sewer Overflow discharge?
The source names Maud Foster Drain as the receiving water. This does not show how far a discharge travelled.
How many times did Norfolk Street Combined Sewer Overflow spill in 2025?
The 2025 return records 1 counted spill events and 0.7 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 61% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
Is Norfolk Street Combined Sewer Overflow 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 Norfolk Street Combined Sewer Overflow?
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 Norfolk Street Combined Sewer Overflow compare with other overflows?
Norfolk Street Combined Sewer Overflow recorded 1 spill in 2025. That is more than 15% of the 14,239 overflows in England with a reported figure, and ranks 11,130th nationally. Among Anglian Water overflows it ranks 1,063rd of 1,438; the median Anglian Water overflow recorded 6 spills. On the Maud Foster and Fen Catchwater Drains waterbody it ranks 4th of 4. 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.