Ogmore polluted by sewage 4,383 times in 2023 - lasting 44,491 hours
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
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 Ogmore in 2023
46 Sites polluted by Dwr Cymru Welsh Water
4,383 sewage dumps
44,491 h duration
That's 5.15 years! On average 12 times a day
Change Over Time

Pollution Summary 2023

Here are all the reported sewage overflow totals for Ogmore 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 2 of the total 53 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Garw STATION ROW CSO PONTYRHYL BRIDGEND 271 5,344 99.2
Dwr Cymru Welsh Water River Llynfi 27 Talbot Street CSO, Maesteg 321 4,250 98.5
Dwr Cymru Welsh Water Ogwr Fach Blackmill CSO & Storage Tanks Br'Nd 183 3,658 100
Dwr Cymru Welsh Water River Garw BETTWS ROAD CSO LLANGEINOR 177 3,293 79.2
Dwr Cymru Welsh Water Nant-Y-Ci, The Ogwr Fawr TY YR AFON CSO TY YR AFON PANTARWEL 187 2,920 100
Dwr Cymru Welsh Water Ogwr Fawr CSO BELOW CEMETERY RD OGMORE VALE 170 2,451 95.8
Dwr Cymru Welsh Water Ewenny Fach CSO at Hillside Avenue Llanharan 191 2,182 90.6
Dwr Cymru Welsh Water Ogwr Fawr OGWR FAWR CSO OGMORE VALE 131 1,859 98
Dwr Cymru Welsh Water Ogwr Fach DIMBATH AVE BLACKMILL BRIDGEND CSO 142 1,692 99.9
Dwr Cymru Welsh Water River Llynfi LLETTY BRONGU STW LLANGYNWYD MAESTG 126 1,671 100
Dwr Cymru Welsh Water River Ogwr Fawr CSO Car Park New Ogmore Vale School 117 1,451 99.9
Dwr Cymru Welsh Water Ewenni Fach CSO SOUTH OF RAILWAY LLANHAREN 124 1,227 100
Dwr Cymru Welsh Water River Garw Fenton Place CSO Pont Y Cymer 151 1,172 100
Dwr Cymru Welsh Water River Llyfni CAERAU STH CSO ASSET 52420 MAESTEG 82 1,059 100
Dwr Cymru Welsh Water Nant Iorwerth Goch CSO AT BEDFORD ROAD CEFN CRIBWR , 133 1,052 100
Dwr Cymru Welsh Water River Llynfi LLETTY BRONGU WWTW LLANGYNWYD MAES 57 918 100
Dwr Cymru Welsh Water Ogwr Fawr Nant Y Moel Junior School CSO 132 844 100
Dwr Cymru Welsh Water Ogwr Fawr CSO BLANDY TERRACE ADJ ST JOHN ST 101 826 100
Dwr Cymru Welsh Water Ogwr Fach CSO At Farmland Nr Elm Street 93 799 99.9
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 Nant Y Geifr REDLANDS CLOSE CSO PENCOED BRIDGEND 81 430 100
Dwr Cymru Welsh Water Llynfi River CSO Greenfield Street 74 374 99.9
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 Nant Heol-Y-Geifr Hendre Road CSO Pencoed 80 280 99.8
Dwr Cymru Welsh Water River Llynfi Hermon Road CSO Asset 52425 Maesteg 80 267 100
Dwr Cymru Welsh Water Ogwr Fawr SWO East Bank Behind Gilead C Nant 103 263 99.9
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 Ogwr CSO at Riverside Aberkenfig 39 83 99.4
Dwr Cymru Welsh Water Ogwr Fach Via A Surface Water Sewer Rear of Dan-Y-Bryn CSO, Gilfach Goch 63 75 97.8
Dwr Cymru Welsh Water Ogwr Fawr CSO at E E.Bank Opp SWO Northern 22 43 96.6
Dwr Cymru Welsh Water River Llynfi Brid Ogwr Pt 32 Aberkenfig CSO Br'd 22 39 100
Dwr Cymru Welsh Water Nant Y Twlc CSO at Bridgend Road Garth (Point 23) 36 38 99.7
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 River Garw CSO at Victoria Street 12 14 99.7
Dwr Cymru Welsh Water Ogwr Fawr CORBETT STREET CSO OGMORE VALE 14 8 100
Dwr Cymru Welsh Water Nant Y Ffosp Oakfield Terrace CSO, Nantymoel 4 3 56.6
Dwr Cymru Welsh Water River Llynfi Via Culvert Heol Y Llwyni CSO 7 2 99.7
Dwr Cymru Welsh Water River Llynfi CAERAU ROAD CSO ASSET 52427 MAESTEG 4 1 100
Dwr Cymru Welsh Water River Ogmore Swo. Tynycoed (Point 30) CSO 3 1 97.2
Dwr Cymru Welsh Water Ogwr Fawr Via A Culverted Watercourse CSO at End of Railway Terrace, Ogmore Vale 3 0 99.4
Dwr Cymru Welsh Water Nant Abercerdin Via Surface Water Sewer CSO Nr Glannant, Heol Heulog 0 0 100
Dwr Cymru Welsh Water River Llynfi HEARTS OF OAK COTTAGES (STORM) MA 0 0 97.1
Dwr Cymru Welsh Water Nant Heol Y Geifr COYCHURCH ROAD CSO BRIDGEND 0 0 0
Dwr Cymru Welsh Water River Ely YNYSDDU PUMPING STATION PONTYCLUN 0 0 99.8
Dwr Cymru Welsh Water Nant Ffornwg Ty-Isaf Road CSO 0 0 0
Dwr Cymru Welsh Water River Cynon CSO Meadow Street Pontycymmer 0 0 30
Dwr Cymru Welsh Water River Nant Felin Fach Llanharry SPS 0 0 100

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.