Brentwood and Ongar was polluted by sewage 773 times in 2023
lasting 9,675 hours - that's 1.12 years!

© 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 Brentwood and Ongar in 2023
16 Sites polluted by Anglian Water, Thames Water
773 sewage dumps
9,675 h duration
That's 1.12 years! On average 2.1 times a day
Change Over Time
Take Action
Your local MP is Alex Burghart (Conservative) - Find out more about their interests, donors, and voting at They Work For You

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 Brentwood and Ongar 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 0 of the total 18 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 %
Thames Water River Cherwell WILLINGALE WWTW 133 2,213 100
Thames Water Northweald Brook NORTH WEALD STW, NORTH WEALD, ESSEX 94 1,349 100
Thames Water Coopers Brook ABBESS RODING WWTW 73 1,200 98.8
Thames Water Brookhouse Brook Theydon Bois 115 1,158 97.6
Thames Water Brookhouse Brook EPPING WASTEWATER TREATMENT WORKS 71 1,020 95.7
Anglian Water River Wid DODDINGHURST WRC 62 566 100
Thames Water River Ingrebourne BRENTWOOD (NAGS HEAD LANE) WWTW 45 529 99.9
Thames Water Colville Hall Brook HULL GREEN (MATCHING) SPS 27 420 100
Anglian Water River Wid SHENFIELD AND HUTTON WRC 12 179 100
Thames Water Cripsey Brook Wealdbridge, North Weald 19 156 74.4
Anglian Water Haveringsgrove Brook INGRAVE PUMPING STATION 12 92 100
Anglian Water River Wid DODDINGHURST STW 22 62 100
Anglian Water Mardyke Thames Estuary WARLEY WEST PS 10 30 100
Anglian Water River Wid SHENFIELD STW NO 2 PS 3 13 100
Anglian Water River Wid B'MORE THE GREEN INGATESTONE RD PS 2 4 100
Anglian Water R Wid SO AT SHENFIELD SEWER 0 0 100
Anglian Water Mardyke W Thames Est WARLEY EAST 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.