Top of the Poops | Constituency Sewage Map - Live Data| Mid and South Pembrokeshire

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Mid and South Pembrokeshire 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 Mid and South Pembrokeshire in 2026

Sewage37,236 hours

Monitoring offline0 hours

Potential pollution0 hours

Storm overflows113

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Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
Dwr Cymru Welsh Water	Langdon WwTW Storm Overflow	River Cresswell	203	3,479h 46m	-
Dwr Cymru Welsh Water	Marloes WwTW Storm Overflow	Unnamed Watercourse	161	2,735h 13m	-
Dwr Cymru Welsh Water	Carew WwTW Storm Overflow	Carew River	110	2,259h 44m	-
Dwr Cymru Welsh Water	Wolfcastle WwTW Storm Overflow	Afon Anghof	138	2,016h 28m	-
Dwr Cymru Welsh Water	Camrose WwTW Overflow	Camrose Brook	122	1,969h 43m	-
Dwr Cymru Welsh Water	Wolfsdale Storm Overflow	Unnamed Tributary of Western Cleddau	91	1,835h 39m	-
Dwr Cymru Welsh Water	Tavernspite WwTW Storm Overflow	Afon Cwm-Waun-Gron	80	1,537h 34m	-
Dwr Cymru Welsh Water	Waterston WwTW Storm Overflow	Hazelbeach Stream	91	1,521h 29m	-
Dwr Cymru Welsh Water	Angle Village Storm Overflow	Milford Haven	92	1,475h 9m	-
Dwr Cymru Welsh Water	Cosheston WwTW Storm Overflow	Cosheston Pill	105	1,462h 48m	-
Dwr Cymru Welsh Water	Letterston East Storm Overflow	Tributary of Afon Anghof	60	1,227h 46m	-
Dwr Cymru Welsh Water	Keeston WwTW Storm Overflow	Knock Brook	81	1,210h 56m	-
Dwr Cymru Welsh Water	St Ishmaels WwTW Storm Overflow	Monk Haven Stream	62	1,161h 44m	-
Dwr Cymru Welsh Water	Hayscastle Storm Overflow	Western Cleddau	70	1,081h 24m	-
Dwr Cymru Welsh Water	Clarbeston Road Storm Overflow	Deepford Brook	54	906h 29m	-
Dwr Cymru Welsh Water	Saundersfoot WwTW 1 Storm Overflow	Coastal Waters - Saundersfoot	45	711h 32m	-
Dwr Cymru Welsh Water	Waterston WwTW Storm Overflow	Hazelbeach Stream	71	705h 12m	-
Dwr Cymru Welsh Water	Johnston WwTW Storm Overflow	Unnamed Tributary of Merlins Brook	39	691h 14m	-
Dwr Cymru Welsh Water	Spittal WwTW Storm Overflow	Tributary of Rudbaxton Water	70	682h 28m	-
Dwr Cymru Welsh Water	Picton Place Storm Overflow	Tidal Waters of the Western Cleddau	61	667h 40m	-
Dwr Cymru Welsh Water	Herbrandston WwTW Storm Overflow	Estuarial Waters East of Sandy Haven	33	540h 22m	-
Dwr Cymru Welsh Water	Tenby WwTW Storm Overflow	River Ritec	41	523h 57m	-
Dwr Cymru Welsh Water	Clarbeston Road WwTW Storm Overflow	Cartlett Brook	58	492h 58m	-
Dwr Cymru Welsh Water	Templeton WwTW Storm Overflow	Ford's Lake	49	387h 22m	-
Dwr Cymru Welsh Water	St Davids WwTW Storm Overflow	Coastal Waters - Porth Clais	33	386h 18m	-
Dwr Cymru Welsh Water	Steynton Road Storm Overflow	Deadman's Lake Stream	18	343h	-
Dwr Cymru Welsh Water	Dale WwTW Storm Overflow	Milford Haven Waterway	45	339h 50m	-
Dwr Cymru Welsh Water	Hundleton WwTW Storm Overflow	Pembroke River	64	336h 39m	-
Dwr Cymru Welsh Water	Nolton Haven Storm Overflow	Tributary of Nolton Bay	21	308h	-
Dwr Cymru Welsh Water	Letterston West WwTW Storm Overflow	Western Cleddau	69	295h 32m	-
Dwr Cymru Welsh Water	Narberth West WwTW Storm Overflow	Narberth Brook	44	280h 30m	-
Dwr Cymru Welsh Water	Solva Storm Overflow	Tidal River Solva	18	272h 47m	-
Dwr Cymru Welsh Water	Merlins Bridge WwTW Storm Overflow	Cleddau River	47	260h	-
Dwr Cymru Welsh Water	Wolfscastle Storm Overflow	Afon Anghof	38	257h 25m	-
Dwr Cymru Welsh Water	Newgale WwTW Storm Overflow	Newgale	20	200h 29m	-
Dwr Cymru Welsh Water	Broadmoor Storm Overflow	Tributary of the Cresswell River	25	187h 29m	-
Dwr Cymru Welsh Water	Saundersfoot Car Park Overflow	Saundersfoot Stream	42	157h 33m	-
Dwr Cymru Welsh Water	Burton Ferry WwTW Storm Overflow	Estuarial Waters of Milford Haven Waterway	20	126h 7m	-
Dwr Cymru Welsh Water	Walton West WwTW Storm Overflow	Swanswell Brook	17	123h 30m	-
Dwr Cymru Welsh Water	Crundale Storm Overflow	Cartlett Brook	14	113h 28m	-
Dwr Cymru Welsh Water	Milford Haven WwTW Settled Storm Overflow	Milford Haven Waterway	22	103h 46m	-
Dwr Cymru Welsh Water	Stackpole WwTW Storm Overflow	Unnamed Tributary of Bosheston Lakes	23	103h 40m	-
Dwr Cymru Welsh Water	Llangwm Orchard Row Overflow	Llangwm Pill	25	100h 30m	-
Dwr Cymru Welsh Water	The Rath Storm Overflow	Esturial Waters at the Rath, Milford Haven	40	93h 23m	-
Dwr Cymru Welsh Water	Tiers Cross WwTW Storm Overflow	Tributary of Sandy Haven Pill	25	91h 14m	-
Dwr Cymru Welsh Water	Amroth Beach Storm Overflow	Trelissey	11	79h 45m	-
Dwr Cymru Welsh Water	Coombs Drive Storm Overflow	Castle Pill	37	79h 24m	-
Dwr Cymru Welsh Water	Fleet Street No 2 Pennar Storm Overflow	Pembroke River	10	79h 1m	-
Dwr Cymru Welsh Water	Llandewi Velfrey WwTW Storm Overflow	Tributary of Pont Shan Brook	11	77h 16m	-
Dwr Cymru Welsh Water	Hook WwTW Upper Level Storm Overflow	Sprinkle Pill	30	75h 33m	-
Dwr Cymru Welsh Water	Little Haven Overflow	Little Haven Stream	7	69h 44m	-
Dwr Cymru Welsh Water	Bridge Hill Narberth Storm Overflow	Narberth Brook	34	68h 53m	-
Dwr Cymru Welsh Water	Hook WwTW Low Level Storm Overflow	Sprinkle Pill	29	58h 28m	-
Dwr Cymru Welsh Water	The Promenade Neyland Storm Overflow	Milford Haven Estuary	40	58h 20m	-
Dwr Cymru Welsh Water	Rosemarket WwTW Storm Overflow	Tributary of Westfield Pill	24	57h 44m	-
Dwr Cymru Welsh Water	Narberth East Storm Overflow	Tributary of Afon Marlais	13	55h 59m	-
Dwr Cymru Welsh Water	Manorbier Storm Overflow	Coastal Waters - Manorbier	8	54h 18m	-
Dwr Cymru Welsh Water	New Road Begelly Storm Overflow	River Cresswell	13	46h 45m	-
Dwr Cymru Welsh Water	Union Hill Storm Overflow	Western Cleddau	37	46h 31m	-
Dwr Cymru Welsh Water	Neyland PS Storm Overflow	Milford Haven	13	42h 30m	-
Dwr Cymru Welsh Water	Milford Haven WwTW Storm Overflow	Estuarial waters in Milford Haven Waterway	27	39h 42m	-
Dwr Cymru Welsh Water	Perrots Road Island Storm Overflow	Western Cleddau	18	37h 28m	-
Dwr Cymru Welsh Water	Houghton Storm Overflow	Westfield Pill	6	35h	-
Dwr Cymru Welsh Water	Park Road Lower Park Road Overflow	River Ritec	14	32h 52m	-
Dwr Cymru Welsh Water	Pembroke Dock WwTW Storm Overflow	Milford Haven Waterway	31	32h 33m	-
Dwr Cymru Welsh Water	Fleet Street No 1 Pennar Storm Overflow	Cocheston Pill - headwaters to tidal limit	7	32h 32m	-
Dwr Cymru Welsh Water	Quay Street Haverfordwest Storm Overflow	Tidal Waters of the Western Cleddau	20	30h 57m	-
Dwr Cymru Welsh Water	Saundersfoot WwTW 2 Storm Overflow	Saundersfoot Stream	12	28h 30m	-
Dwr Cymru Welsh Water	Oakridge Acres Overflow	Afon Rhydeg	19	25h 54m	-
Dwr Cymru Welsh Water	Milford Haven Pier Storm Overflow	Esturial Waters - Hakin Point	20	25h 16m	-
Dwr Cymru Welsh Water	Pembroke Dock Sycamore Street Storm Overflow	Tributary of Pembroke River	6	21h 59m	-
Dwr Cymru Welsh Water	Portfield Storm Overflow	Western Cleddau	15	20h 49m	-
Dwr Cymru Welsh Water	Penycwm Overflow	Tributary of Cwm Mawr stream	5	17h	-
Dwr Cymru Welsh Water	New Hedges Overflow	Unnamed Stream	6	14h 45m	-
Dwr Cymru Welsh Water	Water Street Pembroke Dock Storm Overflow	Llanion Pill	14	13h 54m	-
Dwr Cymru Welsh Water	Bishop's Palace St David's Storm Overflow	River Alun	8	13h 51m	-
Dwr Cymru Welsh Water	Milton Overflow	Radford Pill	10	13h 23m	-
Dwr Cymru Welsh Water	Broad Haven South Storm Overflow	Broadhaven Stream	3	13h 15m	-
Dwr Cymru Welsh Water	Honeyborough No 1 Storm Overflow	Unnamed Tributary of Westfield Pill	1	13h	-
Dwr Cymru Welsh Water	Pit Street St David's Storm Overflow	River Alun	12	9h 58m	-
Dwr Cymru Welsh Water	Beach Hill Storm Overflow	Castle Pill	16	8h 25m	-
Dwr Cymru Welsh Water	Mill Bridge Pembroke Storm Overflow	Castle Pond	9	8h 3m	-
Dwr Cymru Welsh Water	St Nicholas Crescent Storm Overflow	Castle Pond	9	6h 1m	-
Dwr Cymru Welsh Water	Lamack Vale Tenby Overflow	Knightston Brook	5	5h 43m	-
Dwr Cymru Welsh Water	Neyland WwTW Storm Overflow	Milford Haven Waterway	5	5h 15m	-
Dwr Cymru Welsh Water	Milford Haven Lower Priory Storm Overflow	River Hubberston Pill	4	4h 47m	-
Dwr Cymru Welsh Water	Saundersfoot East Storm Overflow	Saundersfoot Stream	2	2h 29m	-
Dwr Cymru Welsh Water	Penally Storm Overflow	Unnamed Watercourse	3	2h	-
Dwr Cymru Welsh Water	Tenby Lifeboat Slip Storm Overflow	Coastal Waters	3	1h 30m	-
Dwr Cymru Welsh Water	Picton Road Neyland Storm Overflow	Milford Haven Estuary	3	1h 13m	-
Dwr Cymru Welsh Water	Lydstep Storm Overflow	Unnamed Stream	2	1h	-
Dwr Cymru Welsh Water	Western Way Pembroke Dock Storm Overflow	Milford Haven	1	0h 26m	-
Dwr Cymru Welsh Water	Saundersfoot West Storm Overflow	Saundersfoot Stream	0	0h	-
Dwr Cymru Welsh Water	Freshwater East WwTW Overflow	Land Adjacent To Freshwater East Stream	0	0h	-
Dwr Cymru Welsh Water	Stackpole WwTW Settled Storm Overflow 2	Coastal Waters - Stackpole Quay	0	0h	-
Dwr Cymru Welsh Water	Saundersfoot Valley Road Storm Overflow	Saundersfoot Stream	0	0h	-
Dwr Cymru Welsh Water	Woodbine Terrace Pembroke Storm Overflow	Lower Mill Pond	0	0h	-
Dwr Cymru Welsh Water	Kensington Gardens Haverfordwest Storm Overflow	St Martins Brook	0	0h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0h	-
Dwr Cymru Welsh Water	Angle WwTW Storm Overflow	Angle Bay	0	0h	-
Dwr Cymru Welsh Water	Pembroke Storm Overflow	Estuarial Waters of Afon Pembroke	0	0h	-
Dwr Cymru Welsh Water	Amroth Car Park Storm Overflow	Colby Stream	0	0h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0h	-
Dwr Cymru Welsh Water	Holyland Road Pembroke Storm Overflow	Upper Mill Pond	0	0h	-
Dwr Cymru Welsh Water	Valley Road Overflow	Saundersfoot Stream	0	0h	-
Dwr Cymru Welsh Water	Lamphey WwTW Storm Overflow	River Pembroke	0	0h	-
Dwr Cymru Welsh Water	Kilgetty Storm Overflow	Ford's Lake Stream	0	0h	-
Dwr Cymru Welsh Water	St David's Cathedral St David's Storm Overflow	River Alun	0	0h	-
Dwr Cymru Welsh Water	Walton West WwTW Overflow	Swanswell Brook	0	0h	-
Dwr Cymru Welsh Water	Unknown	Unknown	0	0h	-
Dwr Cymru Welsh Water	Bridge Terrace Pembroke Storm Overflow	Downstream Barrage/Pembroke River	0	0h	-
Dwr Cymru Welsh Water	The Glen Storm Overflow	Stream above Beach	0	0h	-

Mid and South Pembrokeshire - Live Sewage

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Totals for Mid and South Pembrokeshire in 2026

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