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Aberafan Maesteg was polluted by sewage 3,193 times in 2023
lasting 23,822 hours - that's 2.76 years!

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Aberafan Maesteg in 2023
52 Sites polluted by Dwr Cymru Welsh Water
3,193 sewage dumps
23,822 h duration
That's 2.76 years! On average 8.7 times a day
Change Over Time
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Constituencies near Aberafan Maesteg
Waterways in Aberafan Maesteg

Pollution Summary 2023

Here are all the reported sewage overflow totals for Aberafan Maesteg in 2023. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 0 of the total 55 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Llynfi 27 Talbot Street CSO, Maesteg 321 4,250 98.5
Dwr Cymru Welsh Water Swansea Bay AFAN WWTW PHOENIX WHARF HARBOUR RD 204 2,866 93.7
Dwr Cymru Welsh Water River Afan Abercregan PS 107 1,996 100
Dwr Cymru Welsh Water River Llynfi LLETTY BRONGU STW LLANGYNWYD MAESTG 126 1,671 100
Dwr Cymru Welsh Water River Pelenna CSO No 110 Tonmawr 114 1,074 96.7
Dwr Cymru Welsh Water River Afan CSO No. 109 at Cymmer SPS 161 1,068 99.9
Dwr Cymru Welsh Water River Llyfni CAERAU STH CSO ASSET 52420 MAESTEG 82 1,059 100
Dwr Cymru Welsh Water River Llynfi LLETTY BRONGU WWTW LLANGYNWYD MAES 57 918 100
Dwr Cymru Welsh Water River Tawe CSO 104 NEWBRIDGE ROAD PUMPING STAT 83 864 100
Dwr Cymru Welsh Water River Llynfi Maesteg South CSO Asset 95015 126 786 100
Dwr Cymru Welsh Water River Llynfi SPELTER CSO ASSET 52423 100 779 100
Dwr Cymru Welsh Water River Llynfi CSO at Maesteg Market (Point 18) 74 626 100
Dwr Cymru Welsh Water Nant Y Twlc CSO HEOL FAEN GARTH (POINT 22) 133 516 98
Dwr Cymru Welsh Water River Afan CSO 101 THE WAUN 200M U/S FOOTBRIDGE 97 490 98.9
Dwr Cymru Welsh Water Nant Cwm-Clais CSO at rear of Ynys Y Wern 100 473 63.4
Dwr Cymru Welsh Water River Kenfig Marlas STW SPS 40 396 100
Dwr Cymru Welsh Water River Afan Duffryn CSO 73 381 99.9
Dwr Cymru Welsh Water Llynfi River CSO Greenfield Street 74 374 99.9
Dwr Cymru Welsh Water Ffrwd Wyllt CSO No 134 Goytre Bryn Afan 107 369 98.7
Dwr Cymru Welsh Water River Llynfi CSO STH OF GREENFIELD TERRACE PONT 107 364 100
Dwr Cymru Welsh Water River Llynfi CSO Cwmfelin (Point 26) 85 319 98.3
Dwr Cymru Welsh Water River Pelenna CSO 103 Under R'Dbr Pontrhydyfen 77 297 97.8
Dwr Cymru Welsh Water River Alyn Cwmafan RFC CSO 46 280 96.9
Dwr Cymru Welsh Water River Llynfi Hermon Road CSO Asset 52425 Maesteg 80 267 100
Dwr Cymru Welsh Water River Llynfi CSO Caerau Square (Point 10) 110 252 99
Dwr Cymru Welsh Water River Llynfi SLAUGHTER HOUSE CSO ASSET 52415 57 200 100
Dwr Cymru Welsh Water River Afan Blaengwnfi Stormwater Overflow Cham 54 182 98.5
Dwr Cymru Welsh Water River Afan CSO No 115 Scotts Yard Cwmafan 30 160 97.9
Dwr Cymru Welsh Water River Afan CSO 107 Below Alder Terrace Afan 49 79 99.2
Dwr Cymru Welsh Water Croeserw Brook CSO 122 18 DUKE STREET AFAN 21 68 99.7
Dwr Cymru Welsh Water River Afan Britannia Inn CSO, Cwmafan 23 66 56
Dwr Cymru Welsh Water River Corrwg CSO 129 Glyncorrwg CSO Glyncorrwg 25 49 97.8
Dwr Cymru Welsh Water Ffrwd Wyllt GLANDYRRRYN CLOSE CSO PORT TALBOT 27 40 100
Dwr Cymru Welsh Water River Afan CSO at O/S 54 YNYS STREET 31 39 85.8
Dwr Cymru Welsh Water River Afan CSO NO 126 MOORS ST CULVERT AFAN 14 38 27.6
Dwr Cymru Welsh Water Nant Y Twlc CSO at Bridgend Road Garth (Point 23) 36 38 99.7
Dwr Cymru Welsh Water Swansea Bay ABBEY SPS BRITISH STEEL SITE 18 38 94
Dwr Cymru Welsh Water River Llynfi Church Street CSO, Maesteg 32 29 99.8
Dwr Cymru Welsh Water River Llynfi Via Surface Water Sewer Castle Street CSO 23 15 95.3
Dwr Cymru Welsh Water Neath Estuary GIANTS GRAVE SPS PILL TERRACE 9 8 100
Dwr Cymru Welsh Water River Afan CSO 108 REAR 16 MARGAM ST CYMMER 15 5 100
Dwr Cymru Welsh Water River Afan Pontrhydyfen Road Bridge CSO 13 3 97.6
Dwr Cymru Welsh Water Neath Estuary GEORGES ROW SPS GEORGES ROW NEATH 4 3 99.4
Dwr Cymru Welsh Water Neath Estuary BRITON FERRY SPS INNER DOCK NEATH 4 2 99.9
Dwr Cymru Welsh Water River Llynfi Via Culvert Heol Y Llwyni CSO 7 2 99.7
Dwr Cymru Welsh Water River Afan Afan St CSO 5 1 99.7
Dwr Cymru Welsh Water River Llynfi CAERAU ROAD CSO ASSET 52427 MAESTEG 4 1 100
Dwr Cymru Welsh Water River Cynffig Via Surface Water Sewer Hazel Grove SPS 1 1 100
Dwr Cymru Welsh Water River Pelenna CSO 117 Playground 3 Morgan Trce 3 0 96.8
Dwr Cymru Welsh Water Kenfig/Sea Via Sker Surface Water Sewer HEOL FACH CSO NORTH CORNELLY 2 0 100
Dwr Cymru Welsh Water River Fach Lon-Y-Caridan CSO 1 0 100
Dwr Cymru Welsh Water Sea Via Sker Surface Water Sewer South Cornelly Green Avres PS 1 0 99.6
Dwr Cymru Welsh Water Arnallt Brook CSO 123 MARGAM PS NR BROMBILL ST 0 0 99.9
Dwr Cymru Welsh Water Sea Via Sker Outfall GREEN ACRES PS SOUTH CLOVELLY 0 0 99.9
Dwr Cymru Welsh Water River Llynfi HEARTS OF OAK COTTAGES (STORM) MA 0 0 97.1

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. This 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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