Top of the Poops | Constituency | Rhondda and Ogmore| Polluted by Dwr Cymru Welsh Water

Pollution Summary 2024

Here are all the reported sewage overflow totals for Rhondda and Ogmore 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 constituency 2 of the total 100 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	Ogwr Fawr	CSO BELOW CEMETERY RD OGMORE VALE	190	2,532	97.8
Dwr Cymru Welsh Water	Ogwr Fach	Blackmill CSO & Storage Tanks Br'Nd	130	2,528	99.8
Dwr Cymru Welsh Water	Rhondda River Fawr	REGENT ST CSO TREORCHY RHONDDA	184	2,216	99.8
Dwr Cymru Welsh Water	Ogwr Fach	DIMBATH AVE BLACKMILL BRIDGEND CSO	145	1,801	99.8
Dwr Cymru Welsh Water	Nant-Y-Ci, The Ogwr Fawr	TY YR AFON CSO TY YR AFON PANTARWEL	153	1,769	99.8
Dwr Cymru Welsh Water	River Garw	BETTWS ROAD CSO LLANGEINOR	101	1,509	69.6
Dwr Cymru Welsh Water	River Garw	STATION ROW CSO PONTYRHYL BRIDGEND	134	1,409	90.1
Dwr Cymru Welsh Water	River Ely	ELY VALLEY ROAD CSO,	125	1,186	98.1
Dwr Cymru Welsh Water	River Garw	Fenton Place CSO Pont Y Cymer	157	1,169	99.8
Dwr Cymru Welsh Water	Ogwr Fawr	Nant Y Moel Junior School CSO	146	1,111	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	Ferndale Road CSO Tylorstown RCT	93	1,083	98.6
Dwr Cymru Welsh Water	River Rhondda Fach	R/O Tylorstown Primary School CSO, Tylorstown	135	1,065	97.6
Dwr Cymru Welsh Water	River Rhondda	Brook Street Combined Sewer Overflow	146	978	88
Dwr Cymru Welsh Water	Ogwr Fawr	CSO BLANDY TERRACE ADJ ST JOHN ST	115	955	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	Rear of Fir St CSO, Ferndale	124	836	98.2
Dwr Cymru Welsh Water	Nant Clydach	A CSO at Clydach Vale Davies Street	144	813	97.5
Dwr Cymru Welsh Water	River Rhondda Fawr	Rear of Richards Terrace CSO	77	811	88.5
Dwr Cymru Welsh Water	Rhondda Fawr	Ton Pentre PS CSOTont Pentre RCT	118	754	80.7
Dwr Cymru Welsh Water	Rhondda Fawr	Gelligaled Pk CSO Ystrad Rhondda	104	655	92.3
Dwr Cymru Welsh Water	Ogwr Fach	CSO At Farmland Nr Elm Street	78	606	99.8
Dwr Cymru Welsh Water	Rhondda Fawr	Station Rd CSO, Dinas, Porth	136	545	96.2
Dwr Cymru Welsh Water	Rhondda Fawr River	CSO GYLFACH ROAD PORTH RHONDDA	111	499	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	CSO at CROSS STREET YNYSHIR R-C-T	124	489	99.8
Dwr Cymru Welsh Water	Rhondda Fawr River	GLANNANT ST/DINAS ROAD CSO	91	402	98.7
Dwr Cymru Welsh Water	River Rhondda	A Combined Sewer Overflow, Trehafod	28	393	98.2
Dwr Cymru Welsh Water	River Ogwr Fawr	CSO Car Park New Ogmore Vale School	43	391	98.8
Dwr Cymru Welsh Water	River Rhondda Fach	Station Rd CSO, Ferndale	113	380	98.7
Dwr Cymru Welsh Water	River Rhondda Fach	Highfield Industrial Estate CSO, Ferndale	81	374	98
Dwr Cymru Welsh Water	River Rhondda Fach	Rear of Blake St CSO, Maerdy	74	342	97
Dwr Cymru Welsh Water	Rhondda Fach	FERNDALE BANANA TIP SSO OLD SCHOOL	51	290	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	Maerdy Station Road CSO	53	288	99.2
Dwr Cymru Welsh Water	Rhondda Fach	CSO at Blaenllechau School St	94	275	97.8
Dwr Cymru Welsh Water	River Rhondda Fach	FERNDALE BANANA TIP CSO	66	271	97.6
Dwr Cymru Welsh Water	Rhondda Fawr	CSO O/S Welcome Inn, Tylacelyn Rd, Penygraig	94	256	98.4
Dwr Cymru Welsh Water	Ogwr Fawr	SWO East Bank Behind Gilead C Nant	91	242	98.6
Dwr Cymru Welsh Water	Rhondda River	CSO at Rear of George Street, Treherbert	55	236	35.5
Dwr Cymru Welsh Water	Rhondda Fawr River	Blaencwm Rd/Tydraw Terrace CSO	46	228	98.8
Dwr Cymru Welsh Water	River Rhondda Fach	Ferndale Banana Tip CSO Additional	42	226	56.2
Dwr Cymru Welsh Water	Nant Clydach	Railway Terrace CSO, Clydach Vale	67	183	98.8
Dwr Cymru Welsh Water	Rhondda Fach River	PONTYGWAITH BRIDGE CSO ASSET 71188	55	159	96.9
Dwr Cymru Welsh Water	River Ely	CSO at Mill Street, Tonyrefail	49	150	98.8
Dwr Cymru Welsh Water	River Rhondda	Llwynypia Rd CSO, Tonypandy	80	146	97.9
Dwr Cymru Welsh Water	River Ely	CSO at Tonyrefail, Waunrhydd Road	34	144	98.3
Dwr Cymru Welsh Water	Nant Muchydd	Capel Farm PS Emergency Tonyrefai	9	138	99.8
Dwr Cymru Welsh Water	Ogwr Fawr	CSO at E E.Bank Opp SWO Northern	20	120	98.7
Dwr Cymru Welsh Water	River Rhondda Fach	CSO OPP 37 EDMONDES ST TYLORSTOWN	44	119	98.7
Dwr Cymru Welsh Water	Rhondda R - Source To Conf River Rhondda Fach	Penygraig Rd CSO, Penygraig	61	119	98.8
Dwr Cymru Welsh Water	River Rhondda	Trehafod Pumping Station	92	112	99.8
Dwr Cymru Welsh Water	Ogwr Fach Via A Surface Water Sewer	Rear of Dan-Y-Bryn CSO, Gilfach Goch	61	71	95.7
Dwr Cymru Welsh Water	Rhondda Fach	CSO at Blaenllechau Commercial & George St Jn	18	71	99
Dwr Cymru Welsh Water	River Rhondda Fach	Aberrhondda Road CSO	29	64	69.3
Dwr Cymru Welsh Water	Rhondda Fawr	CSO to rear of 8 Griffin Park	24	60	79.3
Dwr Cymru Welsh Water	Ogwr Fawr	CORBETT STREET CSO OGMORE VALE	26	55	99.8
Dwr Cymru Welsh Water	Rhondda River Via A Culvert	Old Brithweunydd Road CSO, Tonypandy	55	51	99.4
Dwr Cymru Welsh Water	River Rhondda Fawr	CSO at Junct Ystrad/Church Road Ystrad	25	49	8.2
Dwr Cymru Welsh Water	Rhondda River Fawr	Llwynypia SPS	45	46	99.8
Dwr Cymru Welsh Water	Rhondda Fawr	REES STREET PUMPING STATION GELLI	36	46	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	CSO at Wattstown-Bailey St Land Recla	22	43	98
Dwr Cymru Welsh Water	Nant Clydach	CSO at Tonypandy, Rear of De Winton St	12	38	96
Dwr Cymru Welsh Water	Rhondda River Via A Culvert	Rees Street 71 CSO, Pentre	95	35	99.4
Dwr Cymru Welsh Water	Rhondda Fawr	CSO at Penycraig - Tylacelyn Road	35	31	99.2
Dwr Cymru Welsh Water	River Rhondda	River Terrace CSO, Treorchy, Rhondda	26	29	99.8
Dwr Cymru Welsh Water	River Garw	CSO at Victoria Street	17	19	99.3
Dwr Cymru Welsh Water	Rhondda Fach	Cwmparc Railway Terrace CSO	13	15	70
Dwr Cymru Welsh Water	Rhondda Fawr	CSO OFF YNYSCYNON ROAD TREALAW	17	13	98.9
Dwr Cymru Welsh Water	River Ely	CSO at Tynybryn Road Tonyrefail R-C-T	10	12	98.7
Dwr Cymru Welsh Water	Rhondda Fach	Dolgwilym River Bridge CSO	18	11	99.6
Dwr Cymru Welsh Water	River Rhondda	Herbert St CSO	6	10	17.6
Dwr Cymru Welsh Water	River Rhondda Fawr	Treherbert Ind Est CSO Treherbert	6	9	99.8
Dwr Cymru Welsh Water	Rhondda R - Source To Conf River Rhondda Fach	Penygraig Nantgwyn St/Hill St Jn CSO	27	8	99.4
Dwr Cymru Welsh Water	River Rhondda Fach	James Terrace CSO	13	8	98.2
Dwr Cymru Welsh Water	River Rhondda Fawr	LEWIS STREET CSO & PUMPING STATION	10	5	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	Blaenllechau Long Row CSO	5	3	99.3
Dwr Cymru Welsh Water	Nant Ystradffernol Via A Culvert	Blaen-y-Cwm Terrace CSO	2	3	53.9
Dwr Cymru Welsh Water	Rhondda Fawr River	Rear of William St CSO, Ystrad	5	2	99.4
Dwr Cymru Welsh Water	Rhondda Fawr	Treherbert Bute/Corbett/David St Junction CSO	8	2	99.4
Dwr Cymru Welsh Water	Rhondda Fawr	CSO at 136 Tyntyla Road, Tonypandy	8	2	96.5
Dwr Cymru Welsh Water	Rhondda Fach River	JUNCT OF BRONDEG AND PENRHYS ST CSO	7	2	99.8
Dwr Cymru Welsh Water	Rhondda Fawr	ELISABETH CLOSE CSO PENTRE RCT	4	2	119.4
Dwr Cymru Welsh Water	River Ely	CSO at Penrhiwfer Ashdale Rd CSO, rear of No23	7	1	99.5
Dwr Cymru Welsh Water	River Rhondda Fach	CSO at Ferndale btw Taff St & Station Rd	5	1	99.7
Dwr Cymru Welsh Water	River Rhondda	Cymmer Rd CSO, Porth	4	1	99.7
Dwr Cymru Welsh Water	Rhondda Fach River	East Rd CSO Tylorstown	1	0	98.8
Dwr Cymru Welsh Water	River Cynon	Pentre - Llewellyn Street CSO	2	0	98.8
Dwr Cymru Welsh Water	Nant Y Ffosp	Oakfield Terrace CSO, Nantymoel	2	0	99.5
Dwr Cymru Welsh Water	Nant Abercerdin Via Surface Water Sewer	CSO Nr Glannant, Heol Heulog	2	0	96.3
Dwr Cymru Welsh Water	River Rhondda	CSO AT CADWGAN TERRACE TREHAFOD	1	0	99.8
Dwr Cymru Welsh Water	Ogwr Fawr Via A Culverted Watercourse	CSO at End of Railway Terrace, Ogmore Vale	1	0	98.4
Dwr Cymru Welsh Water	Rhondda Fawr	Treherbert Pumping Station, Park Close	1	0	99.8
Dwr Cymru Welsh Water	River Rhondda Fach	Ferndale Banana Tip No.1 CSO	0	0	0
Dwr Cymru Welsh Water	River Rhondda Fach	Blaenllechau Taff St CSO	0	0	99.3
Dwr Cymru Welsh Water	River Cynon	CSO Meadow Street Pontycymmer	0	0	35.5
Dwr Cymru Welsh Water	Rhondda River	Treherbert - Opposite Railway CSO	0	0	99.2
Dwr Cymru Welsh Water	River Ely	Tonyrefail, Mill St CSO	0	0	99.5
Dwr Cymru Welsh Water	Nant Cymparc	Junction of Sunnyhill & Park Crescent CSO, Cwmparc	0	0	1.9
Dwr Cymru Welsh Water	River Ely	Mill St CSO, Tonyrefail	0	0	98.7
Dwr Cymru Welsh Water	Rhondda Fach	CSO at FURNACE ROAD PONTYGWAITH RCT	0	0	26.8
Dwr Cymru Welsh Water	Rhondda Fawr River	2 Clarence St CSO, Pentre	0	0	99.2
Dwr Cymru Welsh Water	Ogwr Fawr	OGWR FAWR CSO OGMORE VALE	0	0	0
Dwr Cymru Welsh Water	Rhonda Fawr River	TREORCHY CSO - M/H AT SIDE OF BOYS	0	0	99.2

Rhondda and Ogmore was polluted by sewage 5,214 times in 2024
lasting 34,158 hours - that's 3.95 years!
- but monitoring was disabled in some locations, so could be more

89 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2024

Data Sources & Accuracy

Media Queries

Please Support Us

Rhondda and Ogmore was polluted by sewage 5,214 times in 2024 lasting 34,158 hours - that's 3.95 years! - but monitoring was disabled in some locations, so could be more

89 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2024

Data Sources & Accuracy

Media Queries

Please Support Us

Rhondda and Ogmore was polluted by sewage 5,214 times in 2024
lasting 34,158 hours - that's 3.95 years!
- but monitoring was disabled in some locations, so could be more