Top of the Poops | Place | Tre-gwyr| Polluted by Dwr Cymru Welsh Water

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Totals for Tre-gwyr in 2024

7 Sites polluted by Dwr Cymru Welsh Water

324 sewage dumps

1,166 hours duration

That's 1.62 months. 6.2 times a week, on average

Change Over Time

Waterways in Tre-gwyr

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Tre-gwyr in 2024. 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 locality 3 of the total 9 CSO locations had reporting enabled for less than half the year. Of these 1 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Lliw	Pont-y-cob Road CSO	77	435	47.5
Dwr Cymru Welsh Water	Loughor Estuary	GOWERTON WwTW	48	343	99.8
Dwr Cymru Welsh Water	River Lliw	KINGSBRIDGE CSO GORSEINON SWANSEA	65	232	99.8
Dwr Cymru Welsh Water	River Llan	CSO, Denver R’D Into Culvert Swansea	60	79	99.3
Dwr Cymru Welsh Water	River Llan	CSO BRYNMOR RD SOC11 GOWERTON S124	48	40	99.4
Dwr Cymru Welsh Water	Surface Water Sewer Draining To Gors-Fawr Brook	CSO at Junction of Brithwen Rd & Swansea Rd	21	32	36.5
Dwr Cymru Welsh Water	Loughor Estuary	Cefn Stylle P.S. Gowerton	5	3	99.8
Dwr Cymru Welsh Water	River Lliw	CSO APX 70YDS U/S R'WAY B'GE U	0	0	0
Dwr Cymru Welsh Water	River Llan	Kingsway CSO	0	0	96.9

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

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.

Analysing sewage pollution by the Water Industry

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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

Some data reproduced under Open Government Licence

Tre-gwyr Polluted by sewage 324 times in 2024 lasting 1,166 hours Monitoring was disabled in some locations, so could be more

Tre-gwyr