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Polluted by sewage 853 times in 2024 lasting 10,062 hours - That's 1.16 years!
So far this year (as of May 30, 2025, 9:00 AM) there has been 3,278 hours of sewage overflows - that's 0.38 years!
Your local MP is Alex Burghart (Conservative) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Brentwood and Ongar, 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.
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Donate NowHere are all the reported sewage overflow totals for Brentwood and Ongar 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Thames Water | River Cherwell | WILLINGALE WWTW | 159 | 2,426 | 99.7 |
| Thames Water | Coopers Brook | ABBESS RODING WWTW | 124 | 1,594 | 100 |
| Thames Water | Brookhouse Brook | Theydon Bois | 115 | 1,207 | 100 |
| Thames Water | Brookhouse Brook | EPPING WASTEWATER TREATMENT WORKS | 68 | 1,079 | 99.9 |
| Thames Water | Northweald Brook | NORTH WEALD STW, NORTH WEALD, ESSEX | 72 | 920 | 99.9 |
| Anglian Water | River Wid | INGATESTONE WATER RECYCLING CENTRE | 68 | 769 | 98.8 |
| Anglian Water | River Wid | DODDINGHURST WRC | 51 | 555 | 100 |
| Thames Water | River Ingrebourne | BRENTWOOD (NAGS HEAD LANE) WWTW | 46 | 490 | 99.9 |
| Anglian Water | River Wid | SHENFIELD STW NO 2 PS | 52 | 380 | 100 |
| Thames Water | Cripsey Brook | Wealdbridge, North Weald | 19 | 249 | 100 |
| Anglian Water | Haveringsgrove Brook | INGRAVE PUMPING STATION | 16 | 133 | 96.7 |
| Anglian Water | River Wid | DODDINGHURST STW | 23 | 115 | 100 |
| Anglian Water | Mardyke Thames Estuary | WARLEY WEST PS | 9 | 48 | 83 |
| Anglian Water | R Wid | SO AT SHENFIELD SEWER | 16 | 42 | 99.2 |
| Anglian Water | River Wid | SHENFIELD AND HUTTON WRC | 8 | 35 | 100 |
| Anglian Water | Mardyke W Thames Est | WARLEY EAST PS | 7 | 15 | 100 |
| Thames Water | Colville Hall Brook | HULL GREEN (MATCHING) SPS | 0 | 0 | 99.7 |
| Anglian Water | River Wid | B'MORE THE GREEN INGATESTONE RD PS | 0 | 0 | 100 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org