Pontypridd polluted by sewage 1,302 times in 2022 - lasting 6,364 hours

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✔ means we have experimental daily data for 2023

Totals for Pontypridd in 2022

33 Sites polluted by Dwr Cymru Welsh Water

1,302 sewage dumps
6,364 h duration

That's 8.84 months. On average 3.6 times a day

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Constituencies near Pontypridd

Waterways in Pontypridd

Pollution Summary 2022

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

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Ely	DUFFRYN ISAF SEWAGE TREATMENT WORKS	77	1,068	99.9
Dwr Cymru Welsh Water	River Ely	ELY VALLEY ROAD CSO,	89	920	99.8
Dwr Cymru Welsh Water	River Taff	Tonteg Road, Upper Boat CSO and Pumping Station Emergency Overflow	128	849	100
Dwr Cymru Welsh Water	River Rhondda	CSO at Pwllgwuan Syphons, Millfield, Pontypridd	133	677	98.4
Dwr Cymru Welsh Water	Nant Myddlyn	CSO ADJACENT TO PARISH ROAD BEDDA	136	646	98.9
Dwr Cymru Welsh Water	Nant Coslech	Groesfan SPS	67	303	100
Dwr Cymru Welsh Water	Nant Muchydd	Capel Farm PS Emergency Tonyrefai	21	280	100
Dwr Cymru Welsh Water	River Ely	Lanelay Park - CSO	92	278	100
Dwr Cymru Welsh Water	River Taff	Rhydfelin CSO Off Lionel Terrace	43	228	99.7
Dwr Cymru Welsh Water	River Taff	CASTLE INN CSO ASSET NO 32280	61	202	78.3
Dwr Cymru Welsh Water	River Taff	Crossbrook St CSO, Pontypridd	53	154	95.4
Dwr Cymru Welsh Water	River Clun	Penygawsi CSO	57	141	100
Dwr Cymru Welsh Water	River Ely	CSO at Tonyrefail, Waunrhydd Road	34	114	97.8
Dwr Cymru Welsh Water	River Ely	CSO at Mill Street, Tonyrefail	41	99	99.3
Dwr Cymru Welsh Water	River Clun Via An Unnamed Ditch	Talbot Green CSO	39	80	98.8
Dwr Cymru Welsh Water	Nant Arian	New Society Garage CSO	36	66	100
Dwr Cymru Welsh Water	River Taff	YNYSANGHARAD PARK CSO	23	61	99.9
Dwr Cymru Welsh Water	River Ely	Miskin Sewage Pumping Station Miskin	15	59	98.1
Dwr Cymru Welsh Water	Rhondda River	Pavia Courth CSO, Pontypridd	51	54	98.9
Dwr Cymru Welsh Water	River Rhondda	Pellgwaun CSO	26	25	99.7
Dwr Cymru Welsh Water	Nant Tyrarlwudd	Penycoedcae SPS	28	22	99.6
Dwr Cymru Welsh Water	River Rhondda	Lower Mill Street CSO Pontypridd	10	9	100
Dwr Cymru Welsh Water	River Rhondda	Lanelay Crescent CSO, Maesycoed	14	8	99.5
Dwr Cymru Welsh Water	River Taff	Pontypridd West Street CSO	8	2	10.8
Dwr Cymru Welsh Water	River Rhondda	Pwllgwaun Rd CSO, pontypridd	3	2	100
Dwr Cymru Welsh Water	River Ely	CSO at Penrhiwfer Ashdale Rd CSO, rear of No23	6	1	99.9
Dwr Cymru Welsh Water	River Ely	Brynsadler Pumping Station Clun Ely	3	1	100
Dwr Cymru Welsh Water	River Rhondda	A COMBINED SEWER OVERFLOW GYFEILLON	2	1	99.8
Dwr Cymru Welsh Water	Nant Cymdda Bach	Brynteg Park Pumping Station Beddau	1	0	100
Dwr Cymru Welsh Water	River Ely	CSO at Tynybryn Road Tonyrefail R-C-T	2	0	49.2
Dwr Cymru Welsh Water	R Taff - Conf Rhondda R To Castle Street	CSO at Treforest Llantwit Rd A	1	0	100
Dwr Cymru Welsh Water	River Taff	Taff St CSO, Pontypridd	1	0	99.9
Dwr Cymru Welsh Water	River Ely	Danybryn SPS	1	0	99.9
Dwr Cymru Welsh Water	River Ely	Mill St CSO, Tonyrefail	0	0	100
Dwr Cymru Welsh Water	River Ely	MAES YR FELIN PUMPING STATION	0	0	99.7
Dwr Cymru Welsh Water	River Taff	YNYSANGHARAD HIGH LEVEL RELIEF CSO	0	0	99.9
Dwr Cymru Welsh Water	River Ely	RHYDYNANT PS (ADJ TO 49) PONTYCLUN	0	0	99.9
Dwr Cymru Welsh Water	Taff	Cardiff Road CSO, Pontypridd	0	0	98.4
Dwr Cymru Welsh Water	River Taff	Sion Street Sewage Pumping Station	0	0	99.8
Dwr Cymru Welsh Water	River Ely	Fairview SPS	0	0	100
Dwr Cymru Welsh Water	River Ely	Tonyrefail, Mill St CSO	0	0	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.

Analysing sewage pollution by the Water Industry

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Pontypridd polluted by sewage 1,302 times in 2022 - lasting 6,364 hours

33 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2022

Data Sources & Accuracy

Media Queries

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