Chelmsford was polluted by sewage 84 times in 2023
lasting 532 hours
- but monitoring was disabled in some locations, so could be more

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Chelmsford in 2023
7 Sites polluted by Anglian Water
84 sewage dumps
532 h duration
That's 22.17 days. 1.6 times a week, on average
Change Over Time
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Constituencies near Chelmsford

Pollution Summary 2023

Here are all the reported sewage overflow totals for Chelmsford in 2023. 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 13 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water River Can AVON RD SSO CHELMSFORD 14 265 100
Anglian Water Blackwater Est CHELMSFORD WATER RECYCLING CENTRE 34 229 100
Anglian Water Baddow Brook GREAT BADDOW - BRAMSTON CLOSE CSO 11 12 100
Anglian Water R Chelmer UPLANDS DRIVE 7 11 100
Anglian Water One Bridge Brook CHELMSFORD - N MLBN CHIGNAL ROAD PS 4 8 100
Anglian Water Baddow Brook GT BADDOW HIGH STREET TABORS 8 3 100
Anglian Water River Wid CHELMSFORD-GALLEYWOOD ROAD PS 6 2 91.3
Anglian Water R Chelmer SPRINGFIELD - OAK LODGE SP 0 0 100
Anglian Water Baddow Brook VICARAGE LA GT BADDOW 0 0 100
Anglian Water Sandon Brook RIGNALS LA CSO 0 0 100
Anglian Water River Chelmer GALLEYWOOD - BAKERS LANE SP 0 0 0
Anglian Water River Wid CHELMSFORD-BUTTS WAY PS 0 0 100
Anglian Water Sandon Brook LOWER GREEN GT BADDOW 0 0 98.9

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. This 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.