Top of the Poops | Constituency Sewage Map - Live Data| Newport West and Islwyn

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You're looking at the totals that we have calculated for sewage in Newport West and Islwyn so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Dwr Cymru Welsh Water	Machen Close St Mellons Storm Overflow	Severn Estuary	50	1,056 h 42m	-
Dwr Cymru Welsh Water	Tanybryn Risca Pontymister Storm Overflow	River Ebbw	51	1,030 h 47m	-
Dwr Cymru Welsh Water	Plas Machen Storm Overflow	River Rhymni	45	872 h	-
Dwr Cymru Welsh Water	Abercarn Welfare Ground Storm Overflow	River Ebbw	37	707 h 30m	-
Dwr Cymru Welsh Water	Tredegar Terrace Storm Overflow	Rhynys Brook	25	351 h 41m	-
Dwr Cymru Welsh Water	Western Valley LG Tanks Storm Overflow	Severn Estuary	15	345 h 11m	-
Dwr Cymru Welsh Water	Waunfawr Park Storm Overflow	River Ebbw	14	188 h 34m	-
Dwr Cymru Welsh Water	Berkerolles Road Storm Overflow	River Ebbw	15	105 h 54m	-
Dwr Cymru Welsh Water	Brooklands Terrace Storm Overflow	Nant Carn Brook	21	71 h 57m	-
Dwr Cymru Welsh Water	Maple Avenue Storm Overflow	River Ebbw	46	70 h 51m	-
Dwr Cymru Welsh Water	Rhiw Syr Dafydd Hill Storm Overflow	Sirhowy River	19	70 h 37m	-
Dwr Cymru Welsh Water	Woodfield Park Crescent Blackwood Overflow	Sirhowy River	15	50 h 57m	-
Dwr Cymru Welsh Water	Tredegar Street Storm Overflow	Sirhowy River	7	43 h 15m	-
Dwr Cymru Welsh Water	Windsor Park Storm Overflow	River Ebbw	13	30 h 15m	-
Dwr Cymru Welsh Water	Cwmgelli Blackwood Storm Overflow	Sirhowy River	5	27 h 18m	-
Dwr Cymru Welsh Water	Allt-Yr-Yn Avenue Newport Overflow	Unnamed Watercourse	2	25 h	-
Dwr Cymru Welsh Water	Carnegie Court Storm Overflow	Ebbw Fach River	8	24 h 50m	-
Dwr Cymru Welsh Water	Commercial Street Risca Storm Overflow	River Ebbw	7	22 h 26m	-
Dwr Cymru Welsh Water	Malvern Terrace Storm Overflow	River Ebbw	9	19 h 44m	-
Dwr Cymru Welsh Water	Cardiff Road Newport Overflow	Unnamed Watercourse (via Culvert)	4	11 h 27m	-
Dwr Cymru Welsh Water	Rock and Fountain Playing fields Storm Overflow	Sirhowy River	6	10 h 15m	-
Dwr Cymru Welsh Water	Oakfield Roundabout Storm Overflow	Sirhowy River	3	9 h 38m	-
Dwr Cymru Welsh Water	Pont Gwaith Farm Lane Storm Overflow	Sirhowy River	1	8 h	-
Dwr Cymru Welsh Water	Swffryd Storm Overflow	Ebbw Fach River	4	6 h 15m	-
Dwr Cymru Welsh Water	Markham Manmoel Crossing Storm Overflow	Sirhowy River	1	4 h 30m	-
Dwr Cymru Welsh Water	Tregwilym Close Storm Overflow	River Ebbw	5	3 h 22m	-
Dwr Cymru Welsh Water	High Street Abercarn Storm Overflow	Nant Gwyddon	6	2 h 45m	-
Dwr Cymru Welsh Water	Carnarvon Drive Storm Overflow	Tributary of Ebbw Fawr	4	1 h 59m	-
Dwr Cymru Welsh Water	Forge Road Bassaleg Storm Overflow	Tributary of Afon Ebbw	3	1 h 59m	-
Dwr Cymru Welsh Water	Rogerstone Power Station Land Storm Overflow	River Ebbw	5	1 h 43m	-
Dwr Cymru Welsh Water	St. Johns Crescent Storm Overflow	River Ebbw	4	1 h 33m	-
Dwr Cymru Welsh Water	Bryngoleu Street Blackwood Overflow	River Rhymni	2	1 h 6m	-
Dwr Cymru Welsh Water	Torlais Street Storm Overflow	Unnamed Tribuatary of Afon Ebbw	2	1 h	-
Dwr Cymru Welsh Water	South of Aster Close Risca Overflow	River Ebbw	1	0 h 22m	-
Dwr Cymru Welsh Water	Thornhill Gardens Storm Overflow	Tributary of Afon Ebbw Fawr	1	0 h 18m	-
Dwr Cymru Welsh Water	Rifleman Street Storm Overflow	River Ebbw	1	0 h 14m	-
Dwr Cymru Welsh Water	Cobden Street Rear Storm Overflow	River Ebbw	1	0 h 9m	-
Dwr Cymru Welsh Water	Gladstone Street Crosskeys Storm Overflow	Ebbw Fawr	0	0 h	-
Dwr Cymru Welsh Water	Hollybush Ancient Druid Storm Overflow	River Sirhowy	0	0 h	-
Dwr Cymru Welsh Water	Tregwilym Road No 1 Storm Overflow	River Ebbw	0	0 h	-
Dwr Cymru Welsh Water	Cwm Road Argoed Storm Overflow	Sirhowy River	0	0 h	-
Dwr Cymru Welsh Water	Greenfield Road Old Treowen Storm Overflow	River Ebbw	0	0 h	-

It's a Dirty Business

Newport West and Islwyn - Live Sewage

Polluted by sewage 5,182 hours in 2026 so far..

Newport West and Islwyn - Live Sewage

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It's a Dirty Business

Newport West and Islwyn - Live Sewage Polluted by sewage 5,182 hours in 2026 so far..

Newport West and Islwyn - Live Sewage

Which Year?

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View Annual Sewage Data

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Constituencies near Newport West and Islwyn

Daily Data

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Totals so far

Data Sources & Accuracy

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Newport West and Islwyn - Live Sewage

Polluted by sewage 5,182 hours in 2026 so far..