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Aberafan Maesteg - Live Sewage

Polluted by sewage 7,318 hours in 2026 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 Aberafan Maesteg 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 Aberafan Maesteg

Daily Data

Jan - 1,850 hours
Feb - 3,160 hours
Mar - 1,389 hours
Apr - 812 hours
May - 106 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 Marlas Storm Overflow River Kenfig 96 1,544h 24m -
Dwr Cymru Welsh Water Abercregan Storm Overflow River Afan 49 968h 45m -
Dwr Cymru Welsh Water Talbot Street Maesteg Storm Overflow River Llynfi 79 889h 24m -
Dwr Cymru Welsh Water Lletty Brongu WwTW Storm Overflow River Llynfi 62 864h 15m -
Dwr Cymru Welsh Water Afan WwTW Storm Overflow Swansea Bay 48 699h -
Dwr Cymru Welsh Water Off Glan-yr-afon road Cwmfelin Maesteg Storm Overflow River Llynfi 45 259h 45m -
Dwr Cymru Welsh Water Bangor Street Nantyffyllon Storm Overflow River Llynfi 13 190h 30m -
Dwr Cymru Welsh Water Telecommunication Mast Cwmafan Storm Overflow River Afan 30 164h 10m -
Dwr Cymru Welsh Water Heol Tywith Maesteg Storm Overflow River Llynfi 28 158h 28m -
Dwr Cymru Welsh Water Cwmavon Road Cwmafan Storm Overflow Nant Cwm - Clais 31 156h 49m -
Dwr Cymru Welsh Water Ton-Mawr Road Storm Overflow Afon Pelenna 19 148h 28m -
Dwr Cymru Welsh Water Newbridge Road No 2 Port Talbot Storm Overflow River Afan 17 145h -
Dwr Cymru Welsh Water Garth Heol Faen Storm Overflow Nant Y Twlc 27 142h 50m -
Dwr Cymru Welsh Water Maesteg Row Maesteg Storm Overflow River Llynfi 32 135h -
Dwr Cymru Welsh Water London Close Cwmafan Overflow River Afan 21 134h 12m -
Dwr Cymru Welsh Water Gwaun Afan Storm Overflow River Afan 29 124h 19m -
Dwr Cymru Welsh Water Bryngyrnos Storm Overflow Ffrwd Wyllt 31 103h 55m -
Dwr Cymru Welsh Water Cymmer Storm Overflow River Afan 33 83h 15m -
Dwr Cymru Welsh Water Caerau Square Storm Overflow River Llynfi 27 74h 1m -
Dwr Cymru Welsh Water Glyncorrwg Storm Overflow Afon Corrwg 28 69h -
Dwr Cymru Welsh Water Hermon Road Storm Overflow River Llynfi 25 50h 42m -
Dwr Cymru Welsh Water Caerau Road Storm Overflow River Llynfi 8 32h 15m -
Dwr Cymru Welsh Water Conduit Street Port Talbot Storm Overflow Ffrwd Wyllt 11 29h 30m -
Dwr Cymru Welsh Water London Terrace Cwmafan Storm Overflow River Afan 11 25h 13m -
Dwr Cymru Welsh Water Parc-Tyn-Y-Waun Llangynwyd Storm Overflow River Llynfi 17 22h 38m -
Dwr Cymru Welsh Water Steel Works Port Talbot Storm Overflow Swansea Bay 14 21h 45m -
Dwr Cymru Welsh Water Maesteg Bridgend Road Storm Overflow River Llynfi 6 19h -
Dwr Cymru Welsh Water Ynys Y Gored Storm Overflow River Afan 8 14h 51m -
Dwr Cymru Welsh Water Pont-rhyd-y-fen Maes-y-bettws Storm Overflow Afon Pelenna 13 11h 46m -
Dwr Cymru Welsh Water Bridgend Road Maesteg Overflow River Llynfi 5 9h 14m -
Dwr Cymru Welsh Water Alder Terrace Storm Overflow River Afan 4 5h 58m -
Dwr Cymru Welsh Water Cyonville Overflow River Afan 5 5h 29m -
Dwr Cymru Welsh Water Pontrhydyfen Viaduct Storm Overflow River Afan 2 3h 58m -
Dwr Cymru Welsh Water Maesteg Market Storm Overflow River Llynfi 9 3h 29m -
Dwr Cymru Welsh Water Afan Way Storm Overflow River Afan 3 3h 15m -
Dwr Cymru Welsh Water Maesteg Paddock Wood Storm Overflow River Llynfi 7 2h 3m -
Dwr Cymru Welsh Water Duffryn Afan Road Storm Overflow River Afan 1 0h 45m -
Dwr Cymru Welsh Water Church Street Maesteg Storm Overflow River Llynfi 2 0h 30m -
Dwr Cymru Welsh Water Giant's Grave Storm Overflow Neath Estuary 1 0h 30m -
Dwr Cymru Welsh Water Duke Street Margam Storm Overflow Arnallt Brook 1 0h 15m -
Dwr Cymru Welsh Water Stallcourt Close Rear Storm Overflow Arnallt Brook Culvert (to Swansea Bay) 0 0h -
Dwr Cymru Welsh Water Heol Las Play Area Storm Overflow Sea Water 0 0h -
Dwr Cymru Welsh Water Morgans Terrace Playground Pontrhydyfen Storm Overflow Afon Pelenna 0 0h -
Dwr Cymru Welsh Water Blaengwynfi Tunnel Storm Overflow River Afan 0 0h -
Dwr Cymru Welsh Water George's Row Neath Storm Overflow Neath Estuary 0 0h -
Dwr Cymru Welsh Water Castle Street Maesteg Storm Overflow River Llynfi 0 0h -
Dwr Cymru Welsh Water Lon-Y-Cariadon Storm Overflow Afon Fach 0 0h -
Dwr Cymru Welsh Water Afan Street Port Talbot Storm Overflow River Afan 0 0h -
Dwr Cymru Welsh Water Ynys Street Storm Overflow River Afan 0 0h -
Dwr Cymru Welsh Water Upper Cymmer Margam Street Storm Overflow River Afan 0 0h -
Dwr Cymru Welsh Water Heol-y-Llwyni Rear Storm Overflow Tributary of Afon Llynfi 0 0h -
Dwr Cymru Welsh Water Pant Bach Storm Overflow River Kenfig 0 0h -
Dwr Cymru Welsh Water Bron-y-Waun Maesteg Storm Overflow Nant Y Twlc 0 0h -
Dwr Cymru Welsh Water Cynonville Overflow River Afan 0 0h -
Dwr Cymru Welsh Water Briton Ferry Storm Overflow River Neath 0 0h -
Dwr Cymru Welsh Water Unknown Unknown 0 0h -
Dwr Cymru Welsh Water Margam PS Prince Street Overflow Culverted Section of Arnallt Brook 0 0h -
Dwr Cymru Welsh Water Ty Draw Lane Overflow Sea Water 0 0h -
Dwr Cymru Welsh Water Pwll y Glaw Cwmafan Overflow River Afan 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,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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