Thornbury and Yate was polluted by sewage 2,062 times in 2024
lasting 28,358 hours - that's 3.28 years!

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Live data for Thornbury and Yate in 2025

So far this year (as of Apr 16, 2025, 5:45 PM) there has been 6,983 hours of sewage overflows - that's 0.81 years!

Totals for Thornbury and Yate in 2024

29 Sites polluted by Wessex Water

2,062 sewage dumps
28,358 h duration

That's 3.28 years! On average 5.6 times a day

Change Over Time

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Constituencies near Thornbury and Yate

Waterways in Thornbury and Yate

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Thornbury and Yate, 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 Thornbury and Yate 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 30 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 %
Wessex Water	Luckington Brook	GREAT BADMINTON WWTW	189	4,012	100
Wessex Water	River Boyd	DOYNTON WASTEWATER TREATMENT WORKS	126	2,483	100
Wessex Water	Tockington Mill Rhine	ALVESTON WASTEWATER TREATMENT WORKS	143	2,227	99.8
Wessex Water	Tockington Mill Rhine	TOCKINGTON STW	105	2,155	100
Wessex Water	Ladden Brook	RANGEWORTHY PS	91	1,767	100
Wessex Water	River Frome	CHURCH ROAD CSO	123	1,691	99.8
Wessex Water	Severn Estuary	THORNBURY SEWAGE TREATMENT WORKS	70	1,384	99.7
Wessex Water	River Frome	SUNNY ACRES FOOT BRIDGE CSO	116	1,346	98.8
Wessex Water	Sandy Rhine Chestle Pill	ALMONDSBURY WWTW	86	1,275	100
Wessex Water	Feltham Brook	PUCKLECHURCH WWTW	96	1,118	100
Wessex Water	Dyer'S Brake	JUBILEE LANE PS	127	1,098	100
Wessex Water	River Frome	NIGHTINGALES BRIDGE CSO	107	1,057	99.5
Wessex Water	Olveston Common Rhyne	OLVESTON PS	57	899	99.3
Wessex Water	Foss Ditch	AUST VILLAGE PUMPING STATION	50	865	100
Wessex Water	Unknown	NEW COG MILL CSO	91	805	100
Wessex Water	River Boyd	WICK WASTEWATER TREATMENT WORKS	56	689	99.9
Wessex Water	Tockington Mill Rhyne	LOWER TOCKINGTON ROAD CSO	55	657	100
Wessex Water	Chestle Pill River	REDWICK SEWAGE TREATMENT WORKS	40	538	100
Wessex Water	Tockington Mill Rhine	MILL LODGE CSO	35	449	99.7
Wessex Water	Feltham Brook	FELTHAM ROAD CSO	49	406	100
Wessex Water	River Frome	RECTORY ROAD CSO	46	346	97.5
Wessex Water	River Boyd	THE GREEN CSO	48	289	100
Wessex Water	River Frome	CLYDE ROAD CSO	65	226	94.8
Wessex Water	Little Avon	CHARFIELD WATER RECYCLING CENTRE	24	213	100
Wessex Water	River Boyd	SAINSBURY MILL CSO	27	164	100
Wessex Water	Doncombe Brook	MARSHFIELD WWTW	25	124	100
Wessex Water	River Frome	NORTH ROAD PS	5	43	99.4
Wessex Water	Olveston Common Rhyne	GREEN FARM CSO	4	11	99.8
Wessex Water	River Frome	BRIDGE WAY CSO	6	8	99.8
Wessex Water	Swanmoor Rhine	SWANMOOR BRIDGE PUMPING STATION	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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