Nant Brisgyll polluted by sewage 466 times in 2023 - lasting 5,457 hours

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
Totals for Nant Brisgyll in 2023
2 Sites polluted by Dwr Cymru Welsh Water
466 sewage dumps
5,457 h duration
That's 7.58 months. On average 1.3 times a day
Constituencies along Nant Brisgyll

Pollution Summary 2023

Here are all the reported sewage overflow totals for Nant Brisgyll 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 Brisgyll CSO at Llan Ffestiniog Sewage Treatment Works 317 4,069 100
Dwr Cymru Welsh Water Nant Brisgyll CSO at Llanffestiniog STW 149 1,388 100

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales

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.