North West Essex was polluted by sewage 434 times in 2024
lasting 3,503 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
Select the constituency from the drop-down
✔ means we have experimental daily data since 2023
Live data for North West Essex in 2025
So far this year (as of Apr 16, 2025, 6:30 PM) there has been 429 hours of sewage overflows
Totals for North West Essex in 2024
17 Sites polluted by Anglian Water, Thames Water
434 sewage dumps
3,503 h duration
That's 4.87 months. On average 1.2 times a day
Change Over Time
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Daily Data
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for North West Essex, 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 North West Essex 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 21 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 River Chelmer GREAT EASTON(ESSEX) STW 89 981 100
Thames Water River Stort STANSTED MOUNTFITCHET WWTW 64 922 99.8
Anglian Water R Chelmer PLESHEY - FORD END PUMPING STATION 33 446 56.6
Anglian Water River Chelmer GREAT DUNMOW STW 39 378 100
Anglian Water R Cam LITTLE CHESTERFORD 16 206 100
Anglian Water River Chelmer GT EASTON - BRIDGEFOOT TPS 16 194 100
Anglian Water Straw Brook CHATHAM GREEN PUMPING STATION 15 146 99.9
Thames Water River Roding LEADEN RODING WWTW 9 66 100
Anglian Water Slade River SAFFRON WALDEN WRC 37 48 100
Anglian Water Slade CASTLE STREET/HIGH STREET 55 30 100
Anglian Water River Chelmer GREAT DUNMOW STW 10 25 88.7
Anglian Water Slade River Cam SAFFRON WALDEN-GEORGE ABBEY OV 24 24 100
Anglian Water River Chelmer THAXTED - PARK STREET CSO 16 21 99.2
Thames Water Roding Canfield End, Little Canfield 1 6 100
Anglian Water Slade THAXTED ROAD/VICTORIA AVE CSO 7 3 100
Thames Water Wayletts Ditch Takeley - Garnets 1 1 99.5
Thames Water Pincey Brook Stansted Airport 2 0 99.6
Anglian Water River Cam GREAT CHESTERFORD WRC 0 0 99.9
Anglian Water River Wid WRITTLE - LAWFORD LANE PS 0 0 100
Thames Water Great Hallingbury Brook Birchanger - Duck End 0 0 99.8
Anglian Water River Chelmer GREAT WALTHAM - HOWE STREET PS 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.