Trowbridge

Polluted by sewage 53 times in 2025 lasting 427 hours

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Totals for Trowbridge in 2025

5 Sites polluted by Wessex Water

53 sewage dumps

427 hours duration

Sewage pollution map of Trowbridge — Sewage pollution map of Trowbridge: 427 hours in 2025

That's 2.54 weeks. 1 times a week, on average

Change Over Time

Constituency for Trowbridge

Nearby Constituencies

Waterways in Trowbridge

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Trowbridge 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 place 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	River Biss Via Sws	LADYDOWN MILL COMBINED SEWER OF	21	165	100
Wessex Water	Lambrok Stream	CHANTRY GARDENS PS	18	148	100
Wessex Water	F/E-River Avon, Cso-River Biss	TROWBRIDGE WASTEWATER TRTMNT WORKS	11	111	100
Wessex Water	River Biss Via Sws	STALLARD STREET CSO	2	1	97.5
Wessex Water	Paxcroft Brook Via Sws	POLEBARN ROAD CSO	1	0	100
Wessex Water	River Biss	6 WICKER HILL CSO	0	0	100
Wessex Water	Biss Brook	CHURCHLANDS PUMPING STATION	0	0	100
Wessex Water	River Biss Via Sws	SHIRES CAR PARK CSO	0	0	99.7

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.

Top of the Poops

Analysing sewage pollution by the Water Industry

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Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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