River Aman polluted by sewage 121 times in 2025 - lasting 308 hours

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Totals for River Aman in 2025
4 Sites polluted by Dwr Cymru Welsh Water
121 sewage dumps
308 h duration
That's 1.83 weeks. 2.3 times a week, on average
Constituencies along River Aman
Places along River Aman

Pollution Summary 2025

Here are all the reported sewage overflow totals for River Aman in 2025. Sometimes sewage can be being dumped for months at a time.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Aman PLEASANT VIEW CSO 90 273 92.5
Dwr Cymru Welsh Water River Aman CSO at Aberaman Cardiff Road No 104 23 25 99.6
Dwr Cymru Welsh Water River Aman Incline Row CSO, Aberaman 6 5 99.7
Dwr Cymru Welsh Water River Aman CSO at Junction of David St & Pant Rd, Aberaman 2 4 88

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.

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