Tremadog Bay polluted by sewage 323 times in 2022 - lasting 3,322 hours

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Contains OS Data © Crown copyright & database right 2021-2022
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Totals for Tremadog Bay in 2022
8 Sites polluted by Dwr Cymru Welsh Water
323 sewage dumps
3,322 h duration
That's 4.61 months. 6.2 times a week, on average
Constituencies along Tremadog Bay

Pollution Summary 2022

Here are all the reported sewage overflow totals for Tremadog Bay in 2022. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page - This is because there is an invalid grid reference on the pollution consent - so we don't know where the CSO is. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water Tremadog Bay Criccieth STW CSO to Settled Storm Sewage Tanks 140 2,034 99.8
Dwr Cymru Welsh Water Tremadog Bay MORFA BYCHAN WWTW 71 321 98.7
Dwr Cymru Welsh Water Tremadog Bay CRICCIETH WEST PS , , 33 263 99.4
Dwr Cymru Welsh Water Tremadog Bay LLANDANWG TERMINAL PS 29 227 99.7
Dwr Cymru Welsh Water Tremadog Bay HARLECH TERMINAL PS (OUTFALL A) 17 206 99.9
Dwr Cymru Welsh Water Tremadog Bay CRICCIETH WEST PS 24 156 99.5
Dwr Cymru Welsh Water Tremadog Bay Llanbedrog SPS 7 109 100
Dwr Cymru Welsh Water Tremadog Bay CSO ON SEWER (CRICCIETH BEACH) 2 2 93.8
Dwr Cymru Welsh Water Tremadog Bay CSO at Llandanwg SPS 0 0 100
Dwr Cymru Welsh Water Tremadog Bay CRICCIETH EAST PS 0 0 0

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.