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.

Totals for Newport West and Islwyn in 2026

Sewage11,774 hours

Monitoring offline0 hours

Potential pollution0 hours

Storm overflows42

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Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Dwr Cymru Welsh Water	Tanybryn Risca Pontymister Storm Overflow	River Ebbw	136	2,399h 19m	-
Dwr Cymru Welsh Water	Machen Close St Mellons Storm Overflow	Severn Estuary	128	2,366h 30m	-
Dwr Cymru Welsh Water	Plas Machen Storm Overflow	River Rhymni	105	1,813h 27m	-
Dwr Cymru Welsh Water	Carnegie Court Storm Overflow	Ebbw Fach River	86	1,372h 51m	-
Dwr Cymru Welsh Water	Western Valley LG Tanks Storm Overflow	Severn Estuary	62	1,080h 51m	-
Dwr Cymru Welsh Water	Abercarn Welfare Ground Storm Overflow	River Ebbw	51	805h 32m	-
Dwr Cymru Welsh Water	Tredegar Terrace Storm Overflow	Rhynys Brook	29	361h 41m	-
Dwr Cymru Welsh Water	Oakfield Roundabout Storm Overflow	Sirhowy River	22	326h 3m	-
Dwr Cymru Welsh Water	Maple Avenue Storm Overflow	River Ebbw	73	284h 59m	-
Dwr Cymru Welsh Water	Waunfawr Park Storm Overflow	River Ebbw	15	189h 1m	-
Dwr Cymru Welsh Water	Berkerolles Road Storm Overflow	River Ebbw	20	127h 20m	-
Dwr Cymru Welsh Water	Brooklands Terrace Storm Overflow	Nant Carn Brook	41	113h 28m	-
Dwr Cymru Welsh Water	Rhiw Syr Dafydd Hill Storm Overflow	Sirhowy River	34	98h 59m	-
Dwr Cymru Welsh Water	St. Johns Crescent Storm Overflow	River Ebbw	13	72h	-
Dwr Cymru Welsh Water	Woodfield Park Crescent Blackwood Overflow	Sirhowy River	19	53h 11m	-
Dwr Cymru Welsh Water	Tredegar Street Storm Overflow	Sirhowy River	9	45h 45m	-
Dwr Cymru Welsh Water	Cwmgelli Blackwood Storm Overflow	Sirhowy River	10	36h 14m	-
Dwr Cymru Welsh Water	Windsor Park Storm Overflow	River Ebbw	14	31h	-
Dwr Cymru Welsh Water	Malvern Terrace Storm Overflow	River Ebbw	12	25h 42m	-
Dwr Cymru Welsh Water	Allt-Yr-Yn Avenue Newport Overflow	Unnamed Watercourse	3	25h 27m	-
Dwr Cymru Welsh Water	Commercial Street Risca Storm Overflow	River Ebbw	9	23h 55m	-
Dwr Cymru Welsh Water	Rock and Fountain Playing fields Storm Overflow	Sirhowy River	9	19h 59m	-
Dwr Cymru Welsh Water	Bryngoleu Street Blackwood Overflow	River Rhymni	19	19h	-
Dwr Cymru Welsh Water	Cardiff Road Newport Overflow	Unnamed Watercourse (via Culvert)	9	17h 40m	-
Dwr Cymru Welsh Water	Tregwilym Close Storm Overflow	River Ebbw	14	15h 7m	-
Dwr Cymru Welsh Water	Swffryd Storm Overflow	Ebbw Fach River	12	14h 43m	-
Dwr Cymru Welsh Water	Pont Gwaith Farm Lane Storm Overflow	Sirhowy River	4	9h 3m	-
Dwr Cymru Welsh Water	Markham Manmoel Crossing Storm Overflow	Sirhowy River	2	6h 15m	-
Dwr Cymru Welsh Water	Forge Road Bassaleg Storm Overflow	Tributary of Afon Ebbw	4	4h 43m	-
Dwr Cymru Welsh Water	Carnarvon Drive Storm Overflow	Tributary of Ebbw Fawr	5	4h 29m	-
Dwr Cymru Welsh Water	High Street Abercarn Storm Overflow	Nant Gwyddon	6	2h 45m	-
Dwr Cymru Welsh Water	Rifleman Street Storm Overflow	River Ebbw	6	2h 26m	-
Dwr Cymru Welsh Water	Rogerstone Power Station Land Storm Overflow	River Ebbw	5	1h 43m	-
Dwr Cymru Welsh Water	Torlais Street Storm Overflow	Unnamed Tribuatary of Afon Ebbw	3	1h 15m	-
Dwr Cymru Welsh Water	Cwm Road Argoed Storm Overflow	Sirhowy River	2	0h 56m	-
Dwr Cymru Welsh Water	South of Aster Close Risca Overflow	River Ebbw	2	0h 51m	-
Dwr Cymru Welsh Water	Thornhill Gardens Storm Overflow	Tributary of Afon Ebbw Fawr	1	0h 18m	-
Dwr Cymru Welsh Water	Cobden Street Rear Storm Overflow	River Ebbw	1	0h 9m	-
Dwr Cymru Welsh Water	Hollybush Ancient Druid Storm Overflow	River Sirhowy	0	0h	-
Dwr Cymru Welsh Water	Greenfield Road Old Treowen Storm Overflow	River Ebbw	0	0h	-
Dwr Cymru Welsh Water	Gladstone Street Crosskeys Storm Overflow	Ebbw Fawr	0	0h	-
Dwr Cymru Welsh Water	Tregwilym Road No 1 Storm Overflow	River Ebbw	0	0h	-

Newport West and Islwyn - Live Sewage

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Totals for Newport West and Islwyn in 2026

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