It's a Dirty Business

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North West Norfolk - 2025 Sewage

Polluted by sewage 2,163 hours in 2025 , monitoring offline 8,771 hours , potential overflows 685 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in North West Norfolk for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Daily Data

Jan - 92 hours
Feb - 38 hours
Mar - 4 hours
Apr - 33 hours
May - 24 hours
Jun - 35 hours , 0 offline
Jul - 38 hours , 341 potential
Aug - 2 hours , 1,022 offline
Sept - 14 hours , 1,440 offline
Oct - 66 hours , 1,000 offline
Nov - 1,386 hours , 0 potential
Dec - 423 hours , 318 potential
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water KINGS LYNN-MILLFLEET SO2 OV Culverted Section Of Gaywood R 53 548 h 43m 1 h
Anglian Water Kings Lynn Gaywood Combined Sewer Overflow Tidal River Great Ouse 26 523 h 30m -
Anglian Water Kings Lynn - Gaywood Outfall 2 Combined Sewer Overflow Tidal Great River Ouse 26 523 h 30m -
Anglian Water KINGS LYNN-NAR LANE SP Tidal River Great Ouse 36 142 h 12m -
Anglian Water Kings Lynn - Gaywood Outfall 2 Combined Sewer Overflow Tidal Great River Ouse 8 70 h 17m -
Anglian Water Kings Lynn Gaywood Combined Sewer Overflow Tidal River Great Ouse 8 70 h 17m -
Anglian Water GRIMSTON STW Watery Lane Drain 5 52 h 55m -
Anglian Water GRIMSTON STW Watery Lane Drain 3 44 h 18m 819 h
Anglian Water KINGS LYNN-MILLFLEET SO1 OV Culverted Section Of Gaywood R 27 35 h 44m -
Anglian Water KINGS LYNN-NAR LANE SP Tidal River Great Ouse 10 31 h 9m -
Anglian Water King's Lynn Purfleet Quay Pumping Station Great Ouse 14 19 h 53m -
Anglian Water KINGS LYNN-MILLFLEET SO2 OV Culverted Section Of Gaywood R 11 19 h 29m 744 h
Anglian Water KINGS LYNN-MILLFLEET SO1 OV Culverted Section Of Gaywood R 9 15 h 45m 342 h
Anglian Water KINGS LYNN-MILLFLEET SO4 SSO Culverted Section Of Gaywood 19 15 h -
Anglian Water Hunstanton - Smugglers Lane Pumping Station River Hun 10 10 h 26m -
Anglian Water WEST WALTON STW Tidal River Nene 2 8 h 59m -
Anglian Water KINGS LYNN-MILLFLEET SO4 SSO Culverted Section Of Gaywood 7 6 h 30m -
Anglian Water Hunstanton - Smugglers Lane Pumping Station River Hun 3 5 h 14m -
Anglian Water WEST WALTON STW Tidal River Nene 2 4 h 9m -
Anglian Water EAST RUDHAM EYE LANE TPS Rudham Stream, River Wensum 2 3 h 21m -
Anglian Water Kings Lynn - Ferry Street Combined Sewer Overflow Tidal River Great Ouse 5 2 h 44m 19 h
Anglian Water KINGS LYNN-MILLFLEET SP River Gaywood 3 2 h 4m -
Anglian Water King's Lynn Purfleet Quay Pumping Station Great Ouse 4 1 h 34m -
Anglian Water KINGS LYNN-FRIARS OV Tidal River Nar 2 1 h 14m -
Anglian Water KINGS LYNN-ST PETERS ROAD TPS West Lynn Drain 6 1 h 7m 1 h
Anglian Water Unknown Unknown 3 0 h 59m -
Anglian Water Unknown Unknown 1 0 h 29m -
Anglian Water KINGS LYNN-ST PETERS ROAD TPS West Lynn Drain 1 0 h 17m 0 h
Anglian Water INGOLDISTHORPE-SANDY LANE TPS Boathouse Creek 1 0 h 15m -
Anglian Water Kings Lynn - Tuesday Market Place Combined Sewer Overflow Tidal River Great Ouse 1 0 h 14m 1,234 h
Anglian Water Kings Lynn Page Stair Lane Combined Sewer Overflow Tidal River Great Ouse 1 0 h 14m 0 h
Anglian Water DERSINGHAM-MOUNTBATTEN ROAD SP Boathouse Creek 2 0 h 10m 341 h
Anglian Water Kings Lynn - Water Lane Combined Sewer Overflow Tidal River Great Ouse 1 0 h 10m -
Anglian Water Kings Lynn - Samphire Place Pumping Station West Lynn Drain 0 0 h 0 h
Anglian Water KINGS LYNN-FRIARS OV Tidal River Nar 0 0 h -
Anglian Water INGOLDISTHORPE STW River Ingol 0 0 h -
Anglian Water Burnham Market Water Recycling Centre River Burn 0 0 h 3,625 h
Anglian Water KINGS LYNN STW Tidal River Great Ouse 0 0 h 1,162 h
Anglian Water KINGS LYNN-MILLFLEET SO3 OV Culverted Section Of Gaywood R 0 0 h -
Anglian Water EAST RUDHAM EYE LANE TPS Rudham Stream, River Wensum 0 0 h -
Anglian Water KINGS LYNN-HIGHGATE OV Gaywood River 0 0 h -
Anglian Water Hunstanton South End Road Terminal Pumping Station Wash 0 0 h -
Anglian Water KINGS LYNN-MILLFLEET SP River Gaywood 0 0 h -
Anglian Water KINGS LYNN STW Tidal River Great Ouse 0 0 h -
Anglian Water INGOLDISTHORPE STW River Ingol 0 0 h -
Anglian Water DERSINGHAM-MOUNTBATTEN ROAD SP Boathouse Creek 0 0 h -
Anglian Water KINGS LYNN-HIGHGATE OV Gaywood River 0 0 h -
Anglian Water Kings Lynn - Tuesday Market Place Combined Sewer Overflow Tidal River Great Ouse 0 0 h 0 h
Anglian Water Hunstanton South End Road Terminal Pumping Station Wash 0 0 h -
Anglian Water Kings Lynn Page Stair Lane Combined Sewer Overflow Tidal River Great Ouse 0 0 h 0 h
Anglian Water Burnham Market Water Recycling Centre River Burn 0 0 h 1,162 h
Anglian Water Kings Lynn - Ferry Street Combined Sewer Overflow Tidal River Great Ouse 0 0 h 0 h
Anglian Water INGOLDISTHORPE-SANDY LANE TPS Boathouse Creek 0 0 h -
Anglian Water Kings Lynn - Samphire Place Pumping Station West Lynn Drain 0 0 h 0 h

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.