North West Essex was polluted by sewage 330 times in 2023
lasting 2,601 hours
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
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 North West Essex in 2023
17 Sites polluted by Anglian Water, Thames Water
330 sewage dumps
2,601 h duration
That's 3.61 months. 6.3 times a week, on average
Change Over Time
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Daily Data Since 2023
     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 2023

Here are all the reported sewage overflow totals for North West Essex 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 3 of the total 24 CSO locations had reporting enabled for less than half the year, of which 3 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Anglian Water River Chelmer GREAT EASTON(ESSEX) STW 106 1,341 100
Anglian Water River Chelmer GREAT DUNMOW STW 42 392 100
Thames Water River Stort STANSTED MOUNTFITCHET WWTW 35 325 97.5
Anglian Water River Chelmer GT EASTON - BRIDGEFOOT TPS 29 292 100
Thames Water River Roding LEADEN RODING WWTW 14 93 100
Anglian Water River Chelmer THAXTED - PARK STREET CSO 38 52 99.2
Anglian Water Straw Brook CHATHAM GREEN PUMPING STATION 5 34 100
Anglian Water R Chelmer PLESHEY - FORD END PUMPING STATION 2 19 100
Anglian Water Slade River SAFFRON WALDEN WRC 27 16 99.85
Anglian Water River Chelmer GREAT WALTHAM - HOWE STREET PS 2 12 100
Anglian Water Wicken Water WICKEN BONHUNT PS 2 9 100
Anglian Water Slade CASTLE STREET/HIGH STREET 17 6 94.7
Anglian Water R Cam LITTLE CHESTERFORD 3 5 100
Anglian Water Slade River Cam SAFFRON WALDEN-GEORGE ABBEY OV 4 1 100
Anglian Water Slade THAXTED ROAD/VICTORIA AVE CSO 2 0 100
Anglian Water River Cam GREAT CHESTERFORD WRC 1 0 100
Anglian Water River Wid WRITTLE - LAWFORD LANE PS 1 0 100
Anglian Water River Chelmer GREAT DUNMOW STW 0 0 100
Thames Water Great Hallingbury Brook Birchanger - Duck End 0 0 99.8
Thames Water Wayletts Ditch Takeley - Garnets 0 0 97.9
Thames Water Roding Canfield End, Little Canfield 0 0 88.3
Anglian Water . MILL GREEN FREYNING 0 0 0
Thames Water Pincey Brook Stansted Airport 0 0 0
Anglian Water Slade SO GASWORKS CROSSROADS 0 0 0

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.