Top of the Poops | Constituency | Pontypridd| Polluted by Dwr Cymru Welsh Water

Constituency

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✔ means we have experimental daily data since 2023

Totals for Pontypridd in 2023

42 Sites polluted by Dwr Cymru Welsh Water

3,090 sewage dumps
22,581 h duration

That's 2.61 years! On average 8.5 times a day

Change Over Time

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Constituencies near Pontypridd

Waterways in Pontypridd

Pollution Summary 2023

Here are all the reported sewage overflow totals for Pontypridd in 2023. 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 constituency 1 of the total 52 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Taff	Settled Storm at Cynon Valley Wastewater Treatment Works	167	2,789	99.8
Dwr Cymru Welsh Water	River Taff	Cilfynydd STW Cilfynydd Pontypridd Settled Storm	146	2,461	100
Dwr Cymru Welsh Water	River Ely	DUFFRYN ISAF SEWAGE TREATMENT WORKS	135	2,285	100
Dwr Cymru Welsh Water	Ewenny Fach	CSO at Hillside Avenue Llanharan	191	2,182	90.6
Dwr Cymru Welsh Water	River Taff	Tonteg Road, Upper Boat CSO and Pumping Station Emergency Overflow	160	1,486	100
Dwr Cymru Welsh Water	River Taff	CASTLE INN CSO ASSET NO 32280	157	1,277	97.1
Dwr Cymru Welsh Water	Nant Myddlyn	CSO ADJACENT TO PARISH ROAD BEDDA	166	1,254	98.3
Dwr Cymru Welsh Water	Ewenni Fach	CSO SOUTH OF RAILWAY LLANHAREN	124	1,227	100
Dwr Cymru Welsh Water	River Cynon	PONTCYNON PIPE BRIDGE CSO ABERCYNON	110	1,127	96.7
Dwr Cymru Welsh Water	Nant Clydach	Tank Near Pit CSO Ynysybwl	135	882	98.4
Dwr Cymru Welsh Water	River Rhondda	CSO at Pwllgwuan Syphons, Millfield, Pontypridd	137	599	98.4
Dwr Cymru Welsh Water	Nant Clydach	GLYN STREET CSO GLYN ST YNYSYBWL	117	558	98.6
Dwr Cymru Welsh Water	River Ely	Lanelay Park - CSO	117	550	100
Dwr Cymru Welsh Water	River Taff	Abercynon Wood Rd SPS	79	511	100
Dwr Cymru Welsh Water	River Cynon	CSO Opposite Miskin Hotel, far side of railway	102	425	98.9
Dwr Cymru Welsh Water	River Cynon	Oxford St CSO, Mountain Ash	69	409	49.4
Dwr Cymru Welsh Water	River Clun	Penygawsi CSO	60	351	100
Dwr Cymru Welsh Water	River Rhondda	A COMBINED SEWER OVERFLOW GYFEILLON	67	332	99.9
Dwr Cymru Welsh Water	River Taff	YNYSANGHARAD PARK CSO	91	319	99.9
Dwr Cymru Welsh Water	Nant Clydach	CSO at Clydach Rd, Ynysbwl	44	163	82.8
Dwr Cymru Welsh Water	River Cynon	Glassbrook Terrace CSO, Penrhiwceiber	57	132	99.3
Dwr Cymru Welsh Water	River Taff	Crossbrook St CSO, Pontypridd	60	128	95.8
Dwr Cymru Welsh Water	River Taff	Rhydfelin CSO Off Lionel Terrace	17	128	79.1
Dwr Cymru Welsh Water	Nant Arian	New Society Garage CSO	54	126	100
Dwr Cymru Welsh Water	River Clun Via An Unnamed Ditch	Talbot Green CSO	66	108	71.3
Dwr Cymru Welsh Water	River Cynon	Duffryn Rd Mount 2 CSO	32	96	99.8
Dwr Cymru Welsh Water	River Rhondda	Pellgwaun CSO	34	92	99.8
Dwr Cymru Welsh Water	Nant Clydach	CSO O/S 2 Clydach Terrace, Ynysybwl	25	90	81.5
Dwr Cymru Welsh Water	Rhondda River	Pavia Courth CSO, Pontypridd	70	80	98.6
Dwr Cymru Welsh Water	Nant Tyrarlwudd	Penycoedcae SPS	80	78	99.7
Dwr Cymru Welsh Water	River Cynon	Penrhiwceiber Point D CSO	49	70	99.6
Dwr Cymru Welsh Water	River Cynon	NEWTOWN COMMUNITY HALL CSO	34	63	99.7
Dwr Cymru Welsh Water	R Cynon - Conf Aman R To Conf R Taff	Station Terrace CSO, Penrhiwceiber	32	49	85.7
Dwr Cymru Welsh Water	Nant Clydach	Old Parish Road CSO, Ynysbwl	16	30	16.3
Dwr Cymru Welsh Water	River Rhondda	Lower Mill Street CSO Pontypridd	13	28	100
Dwr Cymru Welsh Water	Nant Cymdda Bach	Brynteg Park Pumping Station Beddau	8	21	100
Dwr Cymru Welsh Water	River Taff	Pontypridd West Street CSO	40	20	99.8
Dwr Cymru Welsh Water	Nant Cae-Dudwg	End of Park Place CSO, Cilfynydd	8	17	99.8
Dwr Cymru Welsh Water	River Taff	YNYSANGHARAD HIGH LEVEL RELIEF CSO	2	9	99.9
Dwr Cymru Welsh Water	R Taff - Conf Rhondda R To Castle Street	CSO at Treforest Llantwit Rd A	3	7	64.1
Dwr Cymru Welsh Water	River Rhondda	Lanelay Crescent CSO, Maesycoed	14	5	99.3
Dwr Cymru Welsh Water	River Taff	Sion Street Sewage Pumping Station	2	4	99.7
Dwr Cymru Welsh Water	Taff	Cardiff Road CSO, Pontypridd	0	0	39.2
Dwr Cymru Welsh Water	River Cynon	Abercynon Rugby Club CSO	0	0	99.5
Dwr Cymru Welsh Water	Nant Cae-Dudwg	PARK PLACE CSO	0	0	100
Dwr Cymru Welsh Water	River Rhondda	Pwllgwaun Rd CSO, pontypridd	0	0	100
Dwr Cymru Welsh Water	River Taff	Taff St CSO, Pontypridd	0	0	58.5
Dwr Cymru Welsh Water	Culvert	NEW ROAD SEWERAGE SYSTEM (REDESIGNE	0	0	0
Dwr Cymru Welsh Water	River Cynon	TOWN HALL	0	0	99.9
Dwr Cymru Welsh Water	River Cynon	No 10 Hamilton St CSO, Mountain Ash	0	0	40.7
Dwr Cymru Welsh Water	River Cynon	Cwmpennar CSO, Adj Low Rd, Mountain Ash	0	0	9.2
Dwr Cymru Welsh Water	River Nant Felin Fach	Llanharry SPS	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, 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.

Analysing sewage pollution by the Water Industry

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(C) 2020-2024 Top-Of-The-Poops CC-BY-SA 4.0,
(C) Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2024,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis (C) 2024 Top-Of-The-Poops

Pontypridd was polluted by sewage 3,090 times in 2023 lasting 22,581 hours - that's 2.61 years! - but monitoring was disabled in some locations, so could be more

42 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2023

Data Sources & Accuracy

Media Queries

Please Support Us

Pontypridd was polluted by sewage 3,090 times in 2023
lasting 22,581 hours - that's 2.61 years!
- but monitoring was disabled in some locations, so could be more