Blaenau Gwent and Rhymney was polluted by sewage 3,329 times in 2024
lasting 13,899 hours - that's 1.61 years!

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
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✔ means we have experimental daily data since 2023
Totals for Blaenau Gwent and Rhymney in 2024
83 Sites polluted by Dwr Cymru Welsh Water
3,329 sewage dumps
13,899 h duration
That's 1.61 years! On average 9.1 times a day
Change Over Time
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Pollution Summary 2024

Here are all the reported sewage overflow totals for Blaenau Gwent and Rhymney in 2024. 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 92 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 Clydach BRYNMAWR STW BLACKROCK BRYNMAWR 147 1,971 99.9
Dwr Cymru Welsh Water River Sirhowy CSO 32075 Opposite Garibaldi Bridge 131 1,267 99.8
Dwr Cymru Welsh Water River Ebbw RIVERSIDE DOCTORS SURGERY EBBW VALE CSO 114 1,004 99.8
Dwr Cymru Welsh Water Nant Bargoed Deri, Darran Valley CSO 96 811 99.4
Dwr Cymru Welsh Water River Rhymney Abertysswg Rugby Playing Field CSO 108 766 97.5
Dwr Cymru Welsh Water River Bargoed Bedwellty Road CSO 188 760 99.3
Dwr Cymru Welsh Water River Rhymney A CSO AT PONTLOTTYN 83 518 99.7
Dwr Cymru Welsh Water River Ebbw The Square Street, Abertillery CSO 67 430 97.8
Dwr Cymru Welsh Water Nant Bargoed Rhymney CSO AT ABERBARGOED VIADUCT 46 416 99.8
Dwr Cymru Welsh Water Unnamed Drain To Ebbw Fach WVTS-Cwmtillery CSO 125 411 92.6
Dwr Cymru Welsh Water River Sirhowy CSO at Tredegar, South of Pochin Crescent 82 295 89.2
Dwr Cymru Welsh Water River Rhymney CSO Opposite Bowen Ind Estate, Aberbargoed 37 250 96.2
Dwr Cymru Welsh Water River Rhymney CSO NEAR RHYMNEY STATION 58 241 98.2
Dwr Cymru Welsh Water River Sirhowy CSO OPP 1 DUKESTOWN ROAD TREDEGAR 63 239 99.8
Dwr Cymru Welsh Water River Ebbw Fawr CWM SSO 59 217 99.3
Dwr Cymru Welsh Water River Sirhowy Tredegar Park Place CSO 109 216 95.4
Dwr Cymru Welsh Water River Ebbw Fach Berea Close CSO, Blaina 50 210 99.1
Dwr Cymru Welsh Water River Sirhowy CSO at Tredegar, Edward Terrace Nr River Bridge 79 208 98.6
Dwr Cymru Welsh Water Sirhowy River CSO at Tredegar, Vicarage Road Rear of Hill Rest 63 198 98.9
Dwr Cymru Welsh Water River Rhymney CSO At New Tredegar Adj Rhosyn Gwyn 16 178 58.6
Dwr Cymru Welsh Water River Rhymney CSO AT REAR OF MEMORIAL HOSPITAL 46 176 99
Dwr Cymru Welsh Water Ebbw Fach River Abertillery Six Bells Colliery No. 2 CSO 37 171 93.5
Dwr Cymru Welsh Water River Rhymney CSO Nr Bethania Cottages 71 155 98.6
Dwr Cymru Welsh Water Nant Yr Ystruth CSO at LIBRARY ON HIGH STREET BLAINA 51 149 89.2
Dwr Cymru Welsh Water River Sirhowy CSO Opposite White Lion Cottages 47 149 98.6
Dwr Cymru Welsh Water Rasa Brook Under Flyover 49 145 99.2
Dwr Cymru Welsh Water Ebbw Fawr CSO at Ebbw Vale Victoria Reclamation Scheme 30 144 99
Dwr Cymru Welsh Water River Rhymney CSO BARGOED 69 132 99.8
Dwr Cymru Welsh Water Rhymney R - Source To Conf Nant Bargod Rhymni Pontlottyn Newydd Farm CSO 47 131 98.7
Dwr Cymru Welsh Water River Rhymney Rhymney Carno St Bute House CSO 132 128 94
Dwr Cymru Welsh Water River Sirhowy A CSO AT REAR OF CHURCH SQ TREDEGAR 55 127 99.4
Dwr Cymru Welsh Water Sirhowy River CSO 32084 Scwrfa Road, Tredegar 43 123 99.8
Dwr Cymru Welsh Water Ebbw Fawr GOSPEL HALL CSO BEAUFOR RD EBBW VA 54 119 99.8
Dwr Cymru Welsh Water Ebbw River CSO 29 OPP THE CROFT STEELWORKS RD 41 109 99.7
Dwr Cymru Welsh Water Ebbw Fach R - Source To Conf Ebbw R CSO AT ABERTILLERY FOUNDARY BRIDGE NR CAR PARK 45 90 90.4
Dwr Cymru Welsh Water River Tillery Glan Ebbw terrace CSO, Abertillery 44 86 96.1
Dwr Cymru Welsh Water River Clydach Opp Bridge End Inn CSO 46 84 98.5
Dwr Cymru Welsh Water Rhymney R - Source To Conf Nant Bargod Rhymni Pontlottyn Recreation Ground CSO 39 81 95.4
Dwr Cymru Welsh Water Ebbw Fawr CSO 31 ADJ STEELWORKS RD CAR PARK 17 79 99.8
Dwr Cymru Welsh Water Ebbw Fach South Griffin Colliery CSO 21 73 99.1
Dwr Cymru Welsh Water River Sirhowy CSO at Tredegar, Railway View, opposite No13 62 70 98.9
Dwr Cymru Welsh Water Ebbw River Tredegar Rd Nr 62A, Ebbw Vale 34 70 99.2
Dwr Cymru Welsh Water Ebbw River Allotment Rd CSO 11 64 64.8
Dwr Cymru Welsh Water River Rhymney CSO at rear of Margaret St., Gilfach 34 57 98.7
Dwr Cymru Welsh Water Sirhowy River Morgan St CSO, Tredegar 62 52 99
Dwr Cymru Welsh Water River Sirhowy WVTS-Tredegar (MH G57) CSO 35 49 99.2
Dwr Cymru Welsh Water Ebbw Fach Abertillery Six Bells Colliery No.1 CSO 7 44 70.3
Dwr Cymru Welsh Water Nant Melyn/Rasa Brook Coedcae House CSO 20 38 98.1
Dwr Cymru Welsh Water River Sirhowy CSO at Tredegar, Brompton SSO 1 MH No GN86A 9 33 99.3
Dwr Cymru Welsh Water Ebbw Fach Abertillery Park View Terrace CSO 19 32 98.8
Dwr Cymru Welsh Water Ebbw Fawr CSO at Opp No 11 Brynhyfryd Terr Ebbw Vale 24 29 99.8
Dwr Cymru Welsh Water River Rhymney A CSO AT BIRTHDIR NEAR STATION 7 27 99.8
Dwr Cymru Welsh Water Ebbw Fach CSO at Abertillery Six Bells 23 24 96.7
Dwr Cymru Welsh Water Sirhowy River Tredegar Vale Terrace R/O 61 18 23 29.7
Dwr Cymru Welsh Water Ebbw Fawr CSO Adj to The Institute 7 19 99.3
Dwr Cymru Welsh Water Ebbw River CSO AT LLANHILLETH DISUSED COLLIERY 47 18 99.8
Dwr Cymru Welsh Water River Sirhowy CSO at Tredegar, Vale Terrace R/O 101 U/S Garage 33 16 82.1
Dwr Cymru Welsh Water Ebbw Fawr CSO O/S Beaufort Arms, Beaufort Rd, Ebbw Vale 45 15 99.3
Dwr Cymru Welsh Water Sirhowy River Tredegar Ladies Row CSO o/s School Entrance 8 15 95.9
Dwr Cymru Welsh Water River Ebbw CSO NO.32031 EBBW VALE RUGBY GROUND 7 15 99
Dwr Cymru Welsh Water Ebbw River CWM (EBBW VALE) CSO 14 14 83.6
Dwr Cymru Welsh Water River Ebbw Ebbw Vale PontyGof 4 13 13.5
Dwr Cymru Welsh Water River Ebbw Fach WVTS-Nantyglo Station SSO 3 10 99.7
Dwr Cymru Welsh Water Culverted River Fac CSO at Nantyglo Market Rd under crash barrier 9 10 99.2
Dwr Cymru Welsh Water River Ebbw Fach CSO at Limestone Road 5 10 99.7
Dwr Cymru Welsh Water River Ebbw Cwn Marine St CSO 4 8 99.4
Dwr Cymru Welsh Water River Ebbw Fach West Side Sewer CSO 6 7 98.8
Dwr Cymru Welsh Water Ebbw River Brooklyn Terrace CSO 11 6 99.5
Dwr Cymru Welsh Water Ebbw Fawr Beaufort Terrace CSO 15 5 86.5
Dwr Cymru Welsh Water Ebbw River Excelsior Street (rear lane) 2 5 99.9
Dwr Cymru Welsh Water Ebbw Fach OLD SOUTH GRIFFIN COLLIERY CSO 2 4 99.6
Dwr Cymru Welsh Water River Bargoed 63 Bedwellty Rd CSO 11 3 99.9
Dwr Cymru Welsh Water Rhymney Bargoed Colliery CSO 8 2 99.7
Dwr Cymru Welsh Water Ebbw River Commercial Rd 4 2 99.5
Dwr Cymru Welsh Water Rhymney River New Tredegar Birch Grove 3 2 99.4
Dwr Cymru Welsh Water River Tillery CSO at R/O ST MICHAELS CHURCH ABERTILLERY 2 1 99.8
Dwr Cymru Welsh Water River Ebbw CSO at R/O PH Beaufort Rd / R/O 23 Lillian Grove 1 1 100
Dwr Cymru Welsh Water Ebbw Fawr CSO at Ebbw Vale Junction of Tredegar Rd & Harcourt St 1 1 99.2
Dwr Cymru Welsh Water River Ebbw Fach Abertillery Six Bells Rd 1 0 100
Dwr Cymru Welsh Water Ebbw River Lambs Square CSO 2 0 100
Dwr Cymru Welsh Water River Sirhowy CSO at Tredegar, Vale Terrace R/O 123 2 0 99.1
Dwr Cymru Welsh Water Ebbw Fawr Via A Surface Water Culvert CSO at Ebbw Vale Queens Square 1 0 99.7
Dwr Cymru Welsh Water Ebbw Fach Castle St CSO, Abertillery 1 0 99.7
Dwr Cymru Welsh Water Ebbw Fach River Abertillery Victoria Road Six Bells CSO 0 0 13.9
Dwr Cymru Welsh Water River Rhymney Aberbargoed CSO 0 0 97.3
Dwr Cymru Welsh Water Ebbw Fawr CSO at Ebbw Vale Beaufort Rd & Badminton Grove Junction 0 0 99.9
Dwr Cymru Welsh Water River Sirhowy CSO at St James Close Maes-Y-Coed,Tredegar 0 0 27
Dwr Cymru Welsh Water Ebbw River CSO at Rear of 4 Harcourt Street, Ebbw Vale 0 0 99
Dwr Cymru Welsh Water River Tillery Commercial St CSO, Abertillery 0 0 100
Dwr Cymru Welsh Water River Ebbw Lambs Square/Lower Square 0 0 15.1
Dwr Cymru Welsh Water River Tillery Tillery St No9 CSO, Abertillery 0 0 99.5
Dwr Cymru Welsh Water Ebbw Fach Nantyglo Farm Rd/Market Rd Junction CSO 0 0 99.7

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.