Mid Norfolk

Polluted by sewage 36 times in 2025 lasting 135 hours

Monitoring fell below 50% in some locations so could be more

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Live data for Mid Norfolk in 2026

So far this year (as of 26 Oct 2026, 01:00) there has been 242 hours of sewage overflows, from 32 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in Mid Norfolk

On 4 occasions since December 2024, no rain fell anywhere in Mid Norfolk for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

1 Jul 2025 1 at once · 5h 29 Apr 2025 1 at once · 1h 2 Jul 2025 1 at once · 1h

Totals for Mid Norfolk in 2025

12 Sites polluted by Anglian Water
36 sewage dumps
135 hours duration
Sewage pollution map of Mid Norfolk
Sewage pollution map of Mid Norfolk: 36 spills in 2025, lasting 135 hours, by Anglian Water
That's 5.62 days. 3 times a month, over the year

Change Over Time

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Waterways in Mid Norfolk

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Mid Norfolk in 2025. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 1 of the total 16 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water River Yare BARNHAM BROOME - MILL ROAD CSO 4 31 100
Anglian Water River Wensum BYLAUGH WATER RECYCLING CENTRE 3 25 100
Anglian Water Blackwater River SHIPDHAM - PARKLANDS AVENUE CSO 11 22 97.5
Anglian Water River Wensum NORTH ELMHAM STW 3 22 99.8
Anglian Water River Tud MATTISHALL STW 5 18 100
Anglian Water Buckenham Stream FEN STREET PS 1 6 100
Anglian Water River Thet WASH LANE PS BANHAM 3 4 100
Anglian Water River Thet CARVERS LA TERMINAL SPS 2 3 100
Anglian Water River Wissey WATTON - SWAFFHAM ROAD TPS 1 0 100
Anglian Water Culverted R Thet ATTLEBOROUGH NORWICH ROAD PS 1 0 43.5
Anglian Water River Thet DISS ROAD PUMPING STATION 1 0 100
Anglian Water River Whittle EAST HARLING STW 1 0 100
Anglian Water Unknown ATTLEBOROUGH 0 0 100
Anglian Water Unknown ATTLEBOROUGH PS 0 0 100
Anglian Water River Thet ATTLEBOROUGH WRC 0 0 100
Anglian Water River Wissey PICKENHAM ROAD TPS 0 0 100

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

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.

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Analysing sewage pollution by the Water Industry

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