Top of the Poops | Constituency | Chelmsford| Polluted by Anglian Water

Constituency

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✔ means we have experimental daily data since 2023

Live data for Chelmsford in 2025

So far this year (as of Apr 16, 2025, 6:00 PM) there has been 256 hours of sewage overflows

Totals for Chelmsford in 2024

7 Sites polluted by Anglian Water

172 sewage dumps
762 h duration

That's 1.06 months. 3.3 times a week, on average

Change Over Time

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Your local MP is Marie Goldman (Liberal Democrat) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near Chelmsford

Waterways in Chelmsford

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Chelmsford, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online Monitoring Offline Polluting Potentially Polluting Unknown

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for Chelmsford in 2024. 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 0 of the total 10 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Anglian Water	Blackwater Est	CHELMSFORD WATER RECYCLING CENTRE	46	376	99.95
Anglian Water	River Can	AVON RD SSO CHELMSFORD	80	340	95.8
Anglian Water	R Chelmer	UPLANDS DRIVE	14	24	100
Anglian Water	Baddow Brook	GREAT BADDOW - BRAMSTON CLOSE CSO	7	9	100
Anglian Water	Baddow Brook	GT BADDOW HIGH STREET TABORS	17	5	100
Anglian Water	One Bridge Brook	CHELMSFORD - N MLBN CHIGNAL ROAD PS	2	4	100
Anglian Water	River Wid	CHELMSFORD-GALLEYWOOD ROAD PS	6	1	100
Anglian Water	Baddow Brook	VICARAGE LA GT BADDOW	0	0	100
Anglian Water	River Wid	CHELMSFORD-BUTTS WAY PS	0	0	100
Anglian Water	R Chelmer	SPRINGFIELD - OAK LODGE SP	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. 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.

Analysing sewage pollution by the Water Industry

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(C) 2020-2024 Top-Of-The-Poops CC-BY-SA 4.0,
(C) Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2024,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis (C) 2024 Top-Of-The-Poops

Chelmsford was polluted by sewage 172 times in 2024 lasting 762 hours

7 Sites polluted by Anglian Water

Pollution Summary 2024

Data Sources & Accuracy

Media Queries

Please Support Us

Chelmsford was polluted by sewage 172 times in 2024
lasting 762 hours