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Thornbury and Yate

Polluted by sewage 970 times in 2025 lasting 12,219 hours - That's 1.41 years!

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© Top of the Poops 2021-2024

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Live data for Thornbury and Yate in 2026

So far this year (as of 25 Oct 2026, 10:01) there has been 13,501 hours of sewage overflows, from 68 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 1.56 years!

Sewage without rain in Thornbury and Yate

On 3 occasions since December 2024, no rain fell anywhere in Thornbury and Yate for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

25 Dec - 27 Dec 2025 6 at once · 130h 18 Jan 2025 1 at once · 24h 15 Jan 2025 1 at once · 24h

Totals for Thornbury and Yate in 2025

29 Sites polluted by Wessex Water
970 sewage dumps
12,219 hours duration
That's 1.41 years. On average 2.7 times a day

Change Over Time

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Sewage pollution map of Thornbury and Yate: 970 spills in 2025, lasting 12,219 hours, by Wessex Water
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Constituencies near Thornbury and Yate

Waterways in Thornbury and Yate

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Thornbury and Yate in 2025. 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 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Wessex Water Luckington Brook GREAT BADMINTON WWTW 94 1,903 99.8
Wessex Water River Boyd DOYNTON WASTEWATER TREATMENT WORKS 58 1,165 100
Wessex Water Tockington Mill Rhine TOCKINGTON STW 56 1,135 100
Wessex Water Ladden Brook RANGEWORTHY PS 52 963 100
Wessex Water Dyer'S Brake JUBILEE LANE PS 75 817 100
Wessex Water Severn Estuary THORNBURY SEWAGE TREATMENT WORKS 35 688 99.6
Wessex Water Tockington Mill Rhine ALVESTON WASTEWATER TREATMENT WORKS 57 657 100
Wessex Water Feltham Brook PUCKLECHURCH WWTW 63 657 100
Wessex Water Sandy Rhine Chestle Pill ALMONDSBURY WWTW 40 515 99.9
Wessex Water Foss Ditch AUST VILLAGE PUMPING STATION 32 467 100
Wessex Water River Frome NIGHTINGALES BRIDGE CSO 60 419 100
Wessex Water River Boyd WICK WASTEWATER TREATMENT WORKS 33 393 100
Wessex Water River Frome CHURCH ROAD CSO 32 354 100
Wessex Water Unknown NEW COG MILL CSO 44 305 100
Wessex Water Olveston Common Rhyne OLVESTON PS 17 276 100
Wessex Water Tockington Mill Rhine MILL LODGE CSO 14 258 100
Wessex Water Tockington Mill Rhyne LOWER TOCKINGTON ROAD CSO 25 238 100
Wessex Water Chestle Pill River REDWICK SEWAGE TREATMENT WORKS 20 219 100
Wessex Water Feltham Brook FELTHAM ROAD CSO 27 199 100
Wessex Water River Frome SUNNY ACRES FOOT BRIDGE CSO 14 158 100
Wessex Water River Frome CLYDE ROAD CSO 51 146 100
Wessex Water River Boyd THE GREEN CSO 40 115 99.2
Wessex Water Doncombe Brook MARSHFIELD WWTW 7 48 100
Wessex Water River Boyd SAINSBURY MILL CSO 6 46 99.9
Wessex Water Little Avon CHARFIELD WATER RECYCLING CENTRE 7 41 100
Wessex Water River Frome RECTORY ROAD CSO 5 16 98
Wessex Water Olveston Common Rhyne GREEN FARM CSO 1 6 100
Wessex Water River Frome NORTH ROAD PS 1 1 100
Wessex Water River Frome BRIDGE WAY CSO 4 0 100
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. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.

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