Here are all the reported sewage overflow totals for Cynon Valley in 2022. Sometimes sewage can be being dumped for months at a time.
Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
---|---|---|---|---|---|
Dwr Cymru Welsh Water | R Cynon - Conf Aman R To Conf R Taff | CSO at R/O 69/70 Bronallt terrace, Abercwmboi | 119 | 2,579 | 90.8 |
Dwr Cymru Welsh Water | River Taff | Settled Storm at Cynon Valley Wastewater Treatment Works | 135 | 2,213 | 100 |
Dwr Cymru Welsh Water | River Taff | Cilfynydd STW Cilfynydd Pontypridd Settled Storm | 102 | 1,831 | 100 |
Dwr Cymru Welsh Water | River Cynon | CSO Opposite Arthurs Place Trecynon | 143 | 1,562 | 100 |
Dwr Cymru Welsh Water | River Cynon | MIKES FIELD CSO ABERAMAN | 106 | 1,482 | 100 |
Dwr Cymru Welsh Water | River Cynon | PONTCYNON PIPE BRIDGE CSO ABERCYNON | 93 | 1,081 | 98.3 |
Dwr Cymru Welsh Water | River Cynon | Penderyn CSO - Tank In Field Raked Scre | 106 | 868 | 97 |
Dwr Cymru Welsh Water | Nant Clydach | Tank Near Pit CSO Ynysybwl | 117 | 662 | 99 |
Dwr Cymru Welsh Water | River Cynon | CSO at West Bank Of River South Of A455 Br | 81 | 457 | 100 |
Dwr Cymru Welsh Water | Nant Clydach | GLYN STREET CSO GLYN ST YNYSYBWL | 101 | 454 | 99.1 |
Dwr Cymru Welsh Water | Nant-Y-Derlwyn | ABERDARE FORECOURT CSO LLWYDCOED | 78 | 406 | 100 |
Dwr Cymru Welsh Water | River Taff | Abercynon Wood Rd SPS | 72 | 405 | 100 |
Dwr Cymru Welsh Water | River Cynon | CSO at Hirwaun Trenant No 66 Rear of Garden | 72 | 350 | 99.3 |
Dwr Cymru Welsh Water | Aberdare Canal | Pant-Y-Cerdin CSO, Aberdare | 94 | 318 | 98.1 |
Dwr Cymru Welsh Water | River Cynon | CSO At Bottom Monk Street | 79 | 275 | 100 |
Dwr Cymru Welsh Water | Unnamed Leading To River Cynon | Llwydcoed CSO Side of Llwydcoed Motors | 61 | 274 | 99.3 |
Dwr Cymru Welsh Water | River Cynon | CSO Opposite Miskin Hotel, far side of railway | 48 | 274 | 34.5 |
Dwr Cymru Welsh Water | River Cynon | CSO AT BOTTOM MONK STREET (Station St Aberdare) | 66 | 232 | 100 |
Dwr Cymru Welsh Water | River Cynon | Cwmbach CSO - Outside Bro Deg | 59 | 177 | 95.1 |
Dwr Cymru Welsh Water | River Aman | PLEASANT VIEW CSO | 62 | 136 | 88.3 |
Dwr Cymru Welsh Water | Nant Clydach | CSO at Clydach Rd, Ynysbwl | 27 | 128 | 61.1 |
Dwr Cymru Welsh Water | River Cynon | Cwmbach Bro Deg Near No44 | 47 | 108 | 99.5 |
Dwr Cymru Welsh Water | River Cynon | Oxford St CSO, Mountain Ash | 42 | 101 | 67.3 |
Dwr Cymru Welsh Water | River Cynon | Glassbrook Terrace CSO, Penrhiwceiber | 50 | 90 | 99.3 |
Dwr Cymru Welsh Water | Nant Clydach | CSO O/S 2 Clydach Terrace, Ynysybwl | 36 | 78 | 80.6 |
Dwr Cymru Welsh Water | River Cynon | CSO ABERAMAN IND EST ABERAMAN | 9 | 75 | 61.1 |
Dwr Cymru Welsh Water | River Cynon River | Aberaman Wind St CSO Nr Mardy lodge | 50 | 61 | 96.8 |
Dwr Cymru Welsh Water | River Cynon | Duffryn Rd Mount 2 CSO | 30 | 56 | 99.7 |
Dwr Cymru Welsh Water | River Cynon | Elizabeth St CSO | 51 | 55 | 99.7 |
Dwr Cymru Welsh Water | Nant Clydach | Old Parish Road CSO, Ynysbwl | 25 | 54 | 45.4 |
Dwr Cymru Welsh Water | To Nant Gwrangon | CSO at Rhigos- Heol Pendarren | 27 | 50 | 82.2 |
Dwr Cymru Welsh Water | River Cynon | NEWTOWN COMMUNITY HALL CSO | 28 | 43 | 99.8 |
Dwr Cymru Welsh Water | River Cynon | Canal Rd CSO, Cwmbach | 9 | 37 | 45.8 |
Dwr Cymru Welsh Water | River Cynon | ABERNANT RUGBY CLUB CSO | 37 | 36 | 99.9 |
Dwr Cymru Welsh Water | River Cynon | Aberaman Curre St CSO | 32 | 35 | 97.2 |
Dwr Cymru Welsh Water | R Cynon - Conf Aman R To Conf R Taff | Station Terrace CSO, Penrhiwceiber | 47 | 33 | 99.2 |
Dwr Cymru Welsh Water | River Cynon | HIRWAUN - REAR OF BUTE TERRACE | 21 | 29 | 99.3 |
Dwr Cymru Welsh Water | River Aman | CSO at Aberaman Cardiff Road No 104 | 34 | 28 | 88.5 |
Dwr Cymru Welsh Water | River Cynon | Penywaun - Rear Of 37/39 Erw L | 38 | 24 | 99.6 |
Dwr Cymru Welsh Water | River Cynon | CSO at Cwmbach Side of Police House | 17 | 23 | 99.9 |
Dwr Cymru Welsh Water | River Cynon | Penrhiwceiber Point D CSO | 38 | 23 | 99.8 |
Dwr Cymru Welsh Water | River Cynon | TOWN HALL | 22 | 16 | 91.5 |
Dwr Cymru Welsh Water | River Camnant | Hirwaun Wastewater Treatment Works | 15 | 16 | 100 |
Dwr Cymru Welsh Water | Nant Wenallt And Then To River Cynon | Forge Tip CSO Aberdare | 29 | 13 | 99.8 |
Dwr Cymru Welsh Water | River Cynon | CSO at Rear of No12 Bonhaul, Cwmbach | 10 | 7 | 99.8 |
Dwr Cymru Welsh Water | Nant Cae-Dudwg | End of Park Place CSO, Cilfynydd | 6 | 5 | 99.7 |
Dwr Cymru Welsh Water | River Cynon | Cwmpennar CSO, Adj Low Rd, Mountain Ash | 3 | 3 | 59.1 |
Dwr Cymru Welsh Water | River Cynon | Cwmbach Sion Terrace No 11 CSO | 6 | 3 | 97.2 |
Dwr Cymru Welsh Water | River Cynon | CSO at Aberaman | 6 | 2 | 98.9 |
Dwr Cymru Welsh Water | River Cynon | Abercwmboi Parkview Capcoch Infant School CSO | 5 | 1 | 100 |
Dwr Cymru Welsh Water | Unnamed Leading To Aman River | Aberaman Cynon St rear of | 4 | 1 | 100 |
Dwr Cymru Welsh Water | Gadlys Feeder | GLADLYS TUDOR TERRACE CSO | 4 | 1 | 99.9 |
Dwr Cymru Welsh Water | River Cynon | No. 29 Maeshyfryd CSO, Cwmbach | 2 | 0 | 100 |
Dwr Cymru Welsh Water | River Cynon | CSO at Rear Of St Winifreds Church Hirwa | 2 | 0 | 100 |
Dwr Cymru Welsh Water | River Cynon | CSO at Hirwaun Trenant No70 Rear of Garden | 2 | 0 | 82.1 |
Dwr Cymru Welsh Water | Nant Cae-Dudwg | PARK PLACE CSO | 1 | 0 | 100 |
Dwr Cymru Welsh Water | Unnamed Stream And Thence To River Cynon | CSO at HIRWAUN - ON TRAMWAY | 1 | 0 | 74.7 |
Dwr Cymru Welsh Water | River Aman | CSO at Junction of David St & Pant Rd, Aberaman | 1 | 0 | 75.6 |
Dwr Cymru Welsh Water | Aman R - Source To Conf River Cynon | Fforchaman Street CSO | 0 | 0 | 100 |
Dwr Cymru Welsh Water | River Dare | CSO Off Glan Road (St John the Baptist Church) | 0 | 0 | 0 |
Dwr Cymru Welsh Water | River Dare | A CSO AT FIELD ADJACENT TO DAVID ST | 0 | 0 | 0 |
Dwr Cymru Welsh Water | Nant Gwawr | CSO at No20 Glancynon Terrace, Aberaman | 0 | 0 | 99.6 |
Dwr Cymru Welsh Water | River Cynon | No 1 Wellington St CSO, Robertstown | 0 | 0 | 28.2 |
Dwr Cymru Welsh Water | River Cynon | Cwmbach SPS | 0 | 0 | 99.4 |
Dwr Cymru Welsh Water | Nant-Y-Derlwyn | Trecynon, Harriet St CSO | 0 | 0 | 0 |
Dwr Cymru Welsh Water | River Cynon | No 10 Hamilton St CSO, Mountain Ash | 0 | 0 | 99.5 |
Dwr Cymru Welsh Water | River Cynon | Abercynon Rugby Club CSO | 0 | 0 | 99.7 |
Dwr Cymru Welsh Water | Culvert | NEW ROAD SEWERAGE SYSTEM (REDESIGNE | 0 | 0 | 0 |
Dwr Cymru Welsh Water | Aman R - Source To Conf River Cynon | Aberaman Park Industrial Estate CSO, Aberdare | 0 | 0 | 99.9 |
Dwr Cymru Welsh Water | River Cynon | CSO at Cwmbach Bryngolwg No 45 | 0 | 0 | 53.3 |
Dwr Cymru Welsh Water | River Aman | Incline Row CSO, Aberaman | 0 | 0 | 98.3 |
EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales
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.