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Mid and South Pembrokeshire - Live Sewage

Polluted by sewage 32,503 hours in 2026 - That's 3.76 years so far..

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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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.

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Constituencies near Mid and South Pembrokeshire

Daily Data

Jan - 10,771 hours
Feb - 13,268 hours
Mar - 6,709 hours
Apr - 1,731 hours
May - 22 hours
Jun - 0 hours
Jul - 0 hours
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Dwr Cymru Welsh Water Marloes WwTW Storm Overflow Unnamed Watercourse 128 2,661h 3m -
Dwr Cymru Welsh Water Carew WwTW Storm Overflow Carew River 98 2,228h 14m -
Dwr Cymru Welsh Water Wolfcastle WwTW Storm Overflow Afon Anghof 115 1,986h 27m -
Dwr Cymru Welsh Water Wolfsdale Storm Overflow Unnamed Tributary of Western Cleddau 82 1,816h 25m -
Dwr Cymru Welsh Water Camrose WwTW Overflow Camrose Brook 99 1,815h 25m -
Dwr Cymru Welsh Water Langdon WwTW Storm Overflow River Cresswell 97 1,794h 15m -
Dwr Cymru Welsh Water Waterston WwTW Storm Overflow Hazelbeach Stream 91 1,521h 14m -
Dwr Cymru Welsh Water Angle Village Storm Overflow Milford Haven 84 1,467h -
Dwr Cymru Welsh Water Cosheston WwTW Storm Overflow Cosheston Pill 81 1,414h 21m -
Dwr Cymru Welsh Water Tavernspite WwTW Storm Overflow Afon Cwm-Waun-Gron 65 1,331h 16m -
Dwr Cymru Welsh Water Letterston East Storm Overflow Tributary of Afon Anghof 55 1,221h 45m -
Dwr Cymru Welsh Water St Ishmaels WwTW Storm Overflow Monk Haven Stream 59 1,144h 15m -
Dwr Cymru Welsh Water Hayscastle Storm Overflow Western Cleddau 65 1,064h 42m -
Dwr Cymru Welsh Water Keeston WwTW Storm Overflow Knock Brook 64 1,028h 22m -
Dwr Cymru Welsh Water Johnston WwTW Storm Overflow Unnamed Tributary of Merlins Brook 39 691h -
Dwr Cymru Welsh Water Clarbeston Road Storm Overflow Deepford Brook 41 679h 15m -
Dwr Cymru Welsh Water Saundersfoot WwTW 1 Storm Overflow Coastal Waters - Saundersfoot 38 610h 15m -
Dwr Cymru Welsh Water Spittal WwTW Storm Overflow Tributary of Rudbaxton Water 52 588h 15m -
Dwr Cymru Welsh Water Picton Place Storm Overflow Tidal Waters of the Western Cleddau 46 545h 15m -
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 35 480h 30m -
Dwr Cymru Welsh Water Clarbeston Road WwTW Storm Overflow Cartlett Brook 45 412h 30m -
Dwr Cymru Welsh Water Templeton WwTW Storm Overflow Ford's Lake 34 349h 30m -
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 41 334h 48m -
Dwr Cymru Welsh Water St Davids WwTW Storm Overflow Coastal Waters - Porth Clais 25 313h 45m -
Dwr Cymru Welsh Water Nolton Haven Storm Overflow Tributary of Nolton Bay 20 307h 30m -
Dwr Cymru Welsh Water Solva Storm Overflow Tidal River Solva 18 272h 47m -
Dwr Cymru Welsh Water Hundleton WwTW Storm Overflow Pembroke River 51 261h 45m -
Dwr Cymru Welsh Water Letterston West WwTW Storm Overflow Western Cleddau 47 255h 51m -
Dwr Cymru Welsh Water Wolfscastle Storm Overflow Afon Anghof 27 239h 25m -
Dwr Cymru Welsh Water Narberth West WwTW Storm Overflow Narberth Brook 34 225h 15m -
Dwr Cymru Welsh Water Merlins Bridge WwTW Storm Overflow Cleddau River 30 200h -
Dwr Cymru Welsh Water Newgale WwTW Storm Overflow Newgale 19 197h 45m -
Dwr Cymru Welsh Water Saundersfoot Car Park Overflow Saundersfoot Stream 41 154h 25m -
Dwr Cymru Welsh Water Broadmoor Storm Overflow Tributary of the Cresswell River 20 148h -
Dwr Cymru Welsh Water Burton Ferry WwTW Storm Overflow Estuarial Waters of Milford Haven Waterway 18 124h 24m -
Dwr Cymru Welsh Water Walton West WwTW Storm Overflow Swanswell Brook 17 123h 30m -
Dwr Cymru Welsh Water Stackpole WwTW Storm Overflow Unnamed Tributary of Bosheston Lakes 23 102h 43m -
Dwr Cymru Welsh Water Milford Haven WwTW Settled Storm Overflow Milford Haven Waterway 18 96h 30m -
Dwr Cymru Welsh Water Tiers Cross WwTW Storm Overflow Tributary of Sandy Haven Pill 16 86h 56m -
Dwr Cymru Welsh Water Llangwm Orchard Row Overflow Llangwm Pill 19 81h 17m -
Dwr Cymru Welsh Water Amroth Beach Storm Overflow Trelissey 10 77h -
Dwr Cymru Welsh Water The Rath Storm Overflow Esturial Waters at the Rath, Milford Haven 29 76h 21m -
Dwr Cymru Welsh Water Fleet Street No 2 Pennar Storm Overflow Pembroke River 5 69h 59m -
Dwr Cymru Welsh Water Little Haven Overflow Little Haven Stream 7 69h 44m -
Dwr Cymru Welsh Water Coombs Drive Storm Overflow Castle Pill 26 68h 15m -
Dwr Cymru Welsh Water Crundale Storm Overflow Cartlett Brook 8 67h 13m -
Dwr Cymru Welsh Water Hook WwTW Upper Level Storm Overflow Sprinkle Pill 22 56h 11m -
Dwr Cymru Welsh Water Manorbier Storm Overflow Coastal Waters - Manorbier 6 47h 30m -
Dwr Cymru Welsh Water The Promenade Neyland Storm Overflow Milford Haven Estuary 25 44h 53m -
Dwr Cymru Welsh Water Bridge Hill Narberth Storm Overflow Narberth Brook 20 44h 13m -
Dwr Cymru Welsh Water Neyland PS Storm Overflow Milford Haven 10 39h 15m -
Dwr Cymru Welsh Water Narberth East Storm Overflow Tributary of Afon Marlais 8 38h 30m -
Dwr Cymru Welsh Water Milford Haven WwTW Storm Overflow Estuarial waters in Milford Haven Waterway 23 36h 30m -
Dwr Cymru Welsh Water Hook WwTW Low Level Storm Overflow Sprinkle Pill 18 35h -
Dwr Cymru Welsh Water Houghton Storm Overflow Westfield Pill 6 35h -
Dwr Cymru Welsh Water New Road Begelly Storm Overflow River Cresswell 8 34h 15m -
Dwr Cymru Welsh Water Fleet Street No 1 Pennar Storm Overflow Cocheston Pill - headwaters to tidal limit 6 31h 7m -
Dwr Cymru Welsh Water Union Hill Storm Overflow Western Cleddau 23 30h 7m -
Dwr Cymru Welsh Water Park Road Lower Park Road Overflow River Ritec 10 28h 30m -
Dwr Cymru Welsh Water Perrots Road Island Storm Overflow Western Cleddau 12 26h 30m -
Dwr Cymru Welsh Water Rosemarket WwTW Storm Overflow Tributary of Westfield Pill 7 24h -
Dwr Cymru Welsh Water Saundersfoot WwTW 2 Storm Overflow Saundersfoot Stream 9 24h -
Dwr Cymru Welsh Water Pembroke Dock Sycamore Street Storm Overflow Tributary of Pembroke River 6 21h 59m -
Dwr Cymru Welsh Water Quay Street Haverfordwest Storm Overflow Tidal Waters of the Western Cleddau 12 18h 45m -
Dwr Cymru Welsh Water Oakridge Acres Overflow Afon Rhydeg 10 15h 24m -
Dwr Cymru Welsh Water Portfield Storm Overflow Western Cleddau 10 14h 52m -
Dwr Cymru Welsh Water Penycwm Overflow Tributary of Cwm Mawr stream 3 14h 45m -
Dwr Cymru Welsh Water Llandewi Velfrey WwTW Storm Overflow Tributary of Pont Shan Brook 2 14h -
Dwr Cymru Welsh Water Bishop's Palace St David's Storm Overflow River Alun 8 13h 51m -
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 New Hedges Overflow Unnamed Stream 4 12h 45m -
Dwr Cymru Welsh Water Milford Haven Pier Storm Overflow Esturial Waters - Hakin Point 10 12h 42m -
Dwr Cymru Welsh Water Milton Overflow Radford Pill 8 11h 8m -
Dwr Cymru Welsh Water Water Street Pembroke Dock Storm Overflow Llanion Pill 11 10h 12m -
Dwr Cymru Welsh Water Pembroke Dock WwTW Storm Overflow Milford Haven Waterway 23 7h 56m -
Dwr Cymru Welsh Water Mill Bridge Pembroke Storm Overflow Castle Pond 9 7h 33m -
Dwr Cymru Welsh Water Beach Hill Storm Overflow Castle Pill 13 6h 42m -
Dwr Cymru Welsh Water Pit Street St David's Storm Overflow River Alun 9 6h 15m -
Dwr Cymru Welsh Water Neyland WwTW Storm Overflow Milford Haven Waterway 5 5h 15m -
Dwr Cymru Welsh Water St Nicholas Crescent Storm Overflow Castle Pond 6 5h 2m -
Dwr Cymru Welsh Water Milford Haven Lower Priory Storm Overflow River Hubberston Pill 4 4h 47m -
Dwr Cymru Welsh Water Lamack Vale Tenby Overflow Knightston Brook 2 3h -
Dwr Cymru Welsh Water Saundersfoot East Storm Overflow Saundersfoot Stream 1 2h -
Dwr Cymru Welsh Water Picton Road Neyland Storm Overflow Milford Haven Estuary 3 1h 13m -
Dwr Cymru Welsh Water Penally Storm Overflow Unnamed Watercourse 1 0h 45m -
Dwr Cymru Welsh Water Western Way Pembroke Dock Storm Overflow Milford Haven 1 0h 26m -
Dwr Cymru Welsh Water Unknown Unknown 0 0h -
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 Unknown Unknown 0 0h -
Dwr Cymru Welsh Water Holyland Road Pembroke Storm Overflow Upper Mill Pond 0 0h -
Dwr Cymru Welsh Water Woodbine Terrace Pembroke Storm Overflow Lower Mill Pond 0 0h -
Dwr Cymru Welsh Water Valley Road Overflow Saundersfoot Stream 0 0h -
Dwr Cymru Welsh Water Kensington Gardens Haverfordwest Storm Overflow St Martins Brook 0 0h -
Dwr Cymru Welsh Water Lamphey WwTW Storm Overflow River Pembroke 0 0h -
Dwr Cymru Welsh Water Unknown Unknown 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 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 Bridge Terrace Pembroke Storm Overflow Downstream Barrage/Pembroke River 0 0h -
Dwr Cymru Welsh Water Tenby Lifeboat Slip Storm Overflow Coastal Waters 0 0h -
Dwr Cymru Welsh Water The Glen Storm Overflow Stream above Beach 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

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Analysing sewage pollution by the Water Industry

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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
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