Nant Llynfell polluted by sewage 42 times in 2023 - lasting 156 hours

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Totals for Nant Llynfell in 2023
2 Sites polluted by Dwr Cymru Welsh Water
42 sewage dumps
156 h duration
That's 6.5 days. 3.5 times a month, over the year
Constituencies along Nant Llynfell

Pollution Summary 2023

Here are all the reported sewage overflow totals for Nant Llynfell in 2023. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water Nant Llynfell Swo No 11 Nr Glanyrafon Cwmlly CSO 25 132 51
Dwr Cymru Welsh Water Nant Llynfell SWO.M'HOLE 154A GEORGE IV PH UPPER CSO 17 23 99.5

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.