Top of the Poops | Senedd Constituency Sewage Map | Sir Fynwy Torfaen

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Totals for Sir Fynwy Torfaen in 2025

76 Sites polluted by Dwr Cymru Welsh Water

3,813 sewage dumps

29,040 hours duration

That's 3.36 years. On average 10.4 times a day

Change Over Time

Senedd Constituencies near Sir Fynwy Torfaen

Westminster Constituencies within Sir Fynwy Torfaen

To see live data by overflow, go to the Westminster Constituency, then 'live data'

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Sir Fynwy Torfaen in 2025. 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 83 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway 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	Mounton Brook	Pwllmeyric SPS (CSO)	193	3,932	94.7
Dwr Cymru Welsh Water	River Lwyd	LLANFRECHFA STORM TANKS PONTHIR	125	1,535	99.9
Dwr Cymru Welsh Water	River Usk	USK STW GRAIG OLWAY FARM LLANGVIEW	87	1,453	99.9
Dwr Cymru Welsh Water	River Wye Estuary	Chepstow South SPS Hunger Pill STW	110	1,439	99.9
Dwr Cymru Welsh Water	River Llwyd	CSO at PONTYPOOL CHARLESVILLE TRUNK SEWAR	89	1,374	99.5
Dwr Cymru Welsh Water	River Usk	LLANGYBI STW LLANGYBI USK	234	1,345	99.9
Dwr Cymru Welsh Water	Usk River	GOYTRE SEWAGE TREATMENT WORKS NANT	93	1,275	99.9
Dwr Cymru Welsh Water	River Lwyd	Chapel Lane CSO	68	1,241	97.4
Dwr Cymru Welsh Water	River Honddu	PANDY STW PANDY MONMOUTHSHIRE	92	1,073	99.9
Dwr Cymru Welsh Water	River Wye	CSO at Welsh Street Chepstow	130	1,054	99.9
Dwr Cymru Welsh Water	River Clydach	Maesygwartha SPS and CSO	92	1,031	99.8
Dwr Cymru Welsh Water	River Lwyd	CSO at Griffithstown Subsidary Sewer	98	809	99.3
Dwr Cymru Welsh Water	River Lwyd	CSO OPPOSITE THE JOB CENTRE IN	113	625	98.4
Dwr Cymru Welsh Water	Clawdd Brook	CSO at Great Oak STW	44	580	99.9
Dwr Cymru Welsh Water	River Usk	ABERBAIDEN STW BEHIND HOP YARD FARM	113	578	99.9
Dwr Cymru Welsh Water	Cwm Ffrwd	VIADUCT ROAD CSO GARNIFFAITH ABERSY	111	548	98.4
Dwr Cymru Welsh Water	Clydach River	CLYDACH CSO	61	545	99.8
Dwr Cymru Welsh Water	River Usk	LLANFOIST WASTEWATER TREATMENT WORKS ME	65	502	99.9
Dwr Cymru Welsh Water	Mynachdy Brook	Bryn Y Gwenin SPS Abergavenny	35	467	99.9
Dwr Cymru Welsh Water	River Lwyd	New Road CSO, Pontypool	80	436	99
Dwr Cymru Welsh Water	River Wye	MONMOUTH STW REDBROOK ROAD MONMOUTH	43	435	99.8
Dwr Cymru Welsh Water	Inland Waters	TY COCH CSO TY COCH WAY CWMBRAN ,	56	431	99.2
Dwr Cymru Welsh Water	River Lwyd - Source To Conf Dowlais Bk	Old Road CSO, Abersychan	82	421	98.5
Dwr Cymru Welsh Water	Cwmbran Brook Via Surface Water Sewer	Porthmawr Road CSO, Cwmbran	93	389	98.2
Dwr Cymru Welsh Water	River Lwyd	Pontnewynydd Mill Rd CSO	77	381	99.1
Dwr Cymru Welsh Water	River Wye Estuary	Chepstow North Fairfield SPS	75	332	99.9
Dwr Cymru Welsh Water	River Wye	Tintern Main SPS	20	326	99.9
Dwr Cymru Welsh Water	River Lwyd	Pontypool Freeholdland Rd	52	317	95.5
Dwr Cymru Welsh Water	River Lwyd	Pontypool (Pontymoile) CSO	60	307	99.4
Dwr Cymru Welsh Water	River Lwyd	St Albans School CSO, Pontypool	65	301	97.4
Dwr Cymru Welsh Water	Blaen Bran Brook	Brookland Terrace Rec Ground CSO	49	288	99.9
Dwr Cymru Welsh Water	River Usk	Mill Street Screens CSO Abergaven	69	263	99.6
Dwr Cymru Welsh Water	Culvert Leading To River Lwyd	Charles Street CSO	40	222	99.6
Dwr Cymru Welsh Water	River Lwyd	Blaenavon Band Hut MH 57A SWO 2	42	217	99.3
Dwr Cymru Welsh Water	River Lwyd	CSO at Blaenavon Station Terrace	55	212	97.2
Dwr Cymru Welsh Water	Avon Lwyd	Cwmbran Somerset Rd CSO	37	205	99.5
Dwr Cymru Welsh Water	Surface Water Sewer And Culver To Cwm Bran Brook	Belle Vue Road CSO, Old Cwmbran	43	174	99.3
Dwr Cymru Welsh Water	River Lwyd	Blaenavon Forgeside CSO	24	167	99.4
Dwr Cymru Welsh Water	Mounton Brook	Mathern SPS	17	142	99.9
Dwr Cymru Welsh Water	River Wye	Monmouth 2 CSO	38	140	100
Dwr Cymru Welsh Water	Dowlias Brook	The Meads CSO, Llantarnum	28	138	99.9
Dwr Cymru Welsh Water	River Lwyd	Abersychan CSO Coed-Yr-Eos Farm	58	137	99.9
Dwr Cymru Welsh Water	Berthin Brook	Little Mill CSO, Panty Pwdin	32	131	95.8
Dwr Cymru Welsh Water	Nant Y Milwr Via Surface Water Sewer And An Unnamed Watercourse	Rede Road CSO	24	102	99.8
Dwr Cymru Welsh Water	River Lwyd	CSO at Cwmbran Sebastopol Avondale Rd	37	93	99.1
Dwr Cymru Welsh Water	Trosnant Brook	Leisure Centre CSO Trosnant Street	29	87	95.4
Dwr Cymru Welsh Water	River Lwyd	LOWER NEW INN (PONTYFELIN LANE	16	82	99.8
Dwr Cymru Welsh Water	River Lwyd	Snatchwood Rd CSO	32	77	97.5
Dwr Cymru Welsh Water	River Wye Estuary	Chepstow North SPS The Back	59	72	99.9
Dwr Cymru Welsh Water	River Lwyd Via Culvert And Unnamed Watercourse	Rear of 15 Llwyn Onn CSO Croesyceiliog	20	63	89.4
Dwr Cymru Welsh Water	River Wye	Thornwell Road CSO	49	63	99.9
Dwr Cymru Welsh Water	River Lwyd	RISING SUN BRIDGE CSO	41	62	96.5
Dwr Cymru Welsh Water	River Lwyd	HOSPITAL ROAD CSO ST JOHNS AMBULANCE	40	47	99.9
Dwr Cymru Welsh Water	River Lwyd	Rose Cottage CSO	38	40	99.9
Dwr Cymru Welsh Water	River Monnow	CSO at Monmouth Town Pumping Station	23	38	99.8
Dwr Cymru Welsh Water	River Lwyd	Pontypool Hanbury Rd/Italian Gardens CSO	31	34	95.3
Dwr Cymru Welsh Water	River Clydach	Glangrwyney Rd CSO, Gilwern	28	31	99.5
Dwr Cymru Welsh Water	River Lwyd	Trevethin CSO	12	30	39.1
Dwr Cymru Welsh Water	Nant Y Wilcae	RAGLAN STW CHEPSTOW ROAD RAGLAN	24	30	99.9
Dwr Cymru Welsh Water	River Llwyd	CSO at Pontypool-Coedygric Panteg Road	21	23	99.5
Dwr Cymru Welsh Water	River Lwyd	103 Beaumaris Drive Cwmbran CSO	7	20	99.9
Dwr Cymru Welsh Water	Blaen Bran Brook	Llanfrechra Rose Cottage CSO	10	19	80.3
Dwr Cymru Welsh Water	River Lwyd	Convent Garden CSO, Llantarnam	10	19	99.5
Dwr Cymru Welsh Water	Nant Wilcae	Raglan CSO No. 1	7	16	98.6
Dwr Cymru Welsh Water	River Lwyd	Stanley Place CSO, Pontnewydd, Cwmbran	21	15	92.2
Dwr Cymru Welsh Water	Rivr Wye	WARREN SLADE SEWAGE PUMPING STATION	1	7	99.9
Dwr Cymru Welsh Water	River Wye	Raglan Way CSO	12	7	99.9
Dwr Cymru Welsh Water	River Lwyd	Pontnewynydd Mill Rd O/S No 4 CSO	2	5	99.9
Dwr Cymru Welsh Water	River Lwyd	7 Olway Close CSO, Llanyravon	5	3	100
Dwr Cymru Welsh Water	River Lwyd	Coed Farm CSO Cwmavon Blaenavon	2	3	99.9
Dwr Cymru Welsh Water	Olway Brook	RAILWAY COTTAGE CSO	1	3	99.9
Dwr Cymru Welsh Water	Trosnant Brook	CSO at Crumlin Rd 2, Pontypool	9	3	87.2
Dwr Cymru Welsh Water	River Severn Estuary	Magor SPS Magor STW Site Newport	7	2	99.9
Dwr Cymru Welsh Water	River Lwyd	PONTNEWYNYDD CSO	4	1	99.7
Dwr Cymru Welsh Water	River Lwyd	CSO at Rosemary lane End of Car Park	2	0	89.4
Dwr Cymru Welsh Water	River Lwyd	Hospital Rd CSO, Pontnewynydd	1	0	99.8
Dwr Cymru Welsh Water	River Severn Estuary	Caldicot SPS at Caldicot STW	0	0	99.9
Dwr Cymru Welsh Water	River Lwyd	2 Llangorse Road CSO Llanyravon	0	0	82.7
Dwr Cymru Welsh Water	River Lwyd	3 Olway close CSO Llanyravon	0	0	83
Dwr Cymru Welsh Water	Nant-Y-Milwr	Coed Eva Mill CSO Coed Eva Cwmbran	0	0	0
Dwr Cymru Welsh Water	Cwmbran Brook	Cwmbran Woodside Road CSO	0	0	100
Dwr Cymru Welsh Water	River Lwyd	Leigh Rd CSO, Pontypool	0	0	99.9
Dwr Cymru Welsh Water	River Lwyd	Pleasant Court CSO, Limekiln Rd, Pontypool	0	0	99.4

It's a Dirty Business

Sir Fynwy Torfaen

Polluted by sewage 3,813 times in 2025 lasting 29,040 hours - That's 3.36 years!

Monitoring was disabled in some locations, so could be more

Sir Fynwy Torfaen

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Totals for Sir Fynwy Torfaen in 2025

76 Sites polluted by Dwr Cymru Welsh Water

Change Over Time

Senedd Constituencies near Sir Fynwy Torfaen

Westminster Constituencies within Sir Fynwy Torfaen

Take Action

We need your support!

Pollution Summary 2025

Data Sources & Accuracy

Media Queries

Please Support Us

It's a Dirty Business

Sir Fynwy Torfaen Polluted by sewage 3,813 times in 2025 lasting 29,040 hours - That's 3.36 years! Monitoring was disabled in some locations, so could be more

Sir Fynwy Torfaen

Select Another Constituency

Totals for Sir Fynwy Torfaen in 2025

76 Sites polluted by Dwr Cymru Welsh Water

Change Over Time

Senedd Constituencies near Sir Fynwy Torfaen

Westminster Constituencies within Sir Fynwy Torfaen

Take Action

We need your support!

Pollution Summary 2025

Data Sources & Accuracy

Media Queries

Please Support Us

Sir Fynwy Torfaen

Polluted by sewage 3,813 times in 2025 lasting 29,040 hours - That's 3.36 years!

Monitoring was disabled in some locations, so could be more