River Taff polluted by sewage 1,120 times in 2022 - lasting 9,564 hours

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Contains OS Data © Crown copyright & database right 2021-2022
© Top of the Poops 2021-2023
Totals for River Taff in 2022
25 Sites polluted by Dwr Cymru Welsh Water
1,120 sewage dumps
9,564 h duration
That's 1.11 years! On average 3.1 times a day

Pollution Summary 2022

Here are all the reported sewage overflow totals for River Taff in 2022. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page - This is because there is an invalid grid reference on the pollution consent - so we don't know where the CSO is. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Taff Settled Storm at Cynon Valley Wastewater Treatment Works 135 2,213 100
Dwr Cymru Welsh Water River Taff Tongwynlais CSO 106 2,013 100
Dwr Cymru Welsh Water River Taff Cilfynydd STW Cilfynydd Pontypridd Settled Storm 102 1,831 100
Dwr Cymru Welsh Water River Taff Tonteg Road, Upper Boat CSO and Pumping Station Emergency Overflow 128 849 100
Dwr Cymru Welsh Water River Taff Gellideg Tai Mawr Rd CSO, Merthyr Tydfil 79 777 99.3
Dwr Cymru Welsh Water River Taff Abercynon Wood Rd SPS 72 405 100
Dwr Cymru Welsh Water River Taff A CSO AT JACKSONS BRIDGE 89 292 99.4
Dwr Cymru Welsh Water River Taff Rhydfelin CSO Off Lionel Terrace 43 228 99.7
Dwr Cymru Welsh Water River Taff Ynys Bridge CSO 31 206 99.5
Dwr Cymru Welsh Water River Taff CASTLE INN CSO ASSET NO 32280 61 202 78.3
Dwr Cymru Welsh Water River Taff Crossbrook St CSO, Pontypridd 53 154 95.4
Dwr Cymru Welsh Water River Taff CSO COLLEGE CAR PK MERTHYR TYDFIL 46 142 100
Dwr Cymru Welsh Water River Taff YNYSANGHARAD PARK CSO 23 61 99.9
Dwr Cymru Welsh Water River Taff Quakers Yard CSO, Greenfield Victoria Bridge 22 61 80.2
Dwr Cymru Welsh Water River Taff Merthyr Tydfil Georgetown Lines Bridge CSO 50 57 99.8
Dwr Cymru Welsh Water River Taff Quakers Yard CSO, Fiddlers Elbow St, Cynon 15 34 16.5
Dwr Cymru Welsh Water River Taff CSO Avenue De Clichy, Merthyr 25 19 100
Dwr Cymru Welsh Water River Taff Cardiff Wood St/Havelock St Jn CSO 7 3 99.8
Dwr Cymru Welsh Water River Taff Pontypridd West Street CSO 8 2 10.8
Dwr Cymru Welsh Water River Taff Park Street PS 5 2 100
Dwr Cymru Welsh Water River Taff Troedyrhiw, Yew Street CSO 7 2 99.6
Dwr Cymru Welsh Water River Taff 3rd Trunk CSO South of Glan Yr Afon 6 1 100
Dwr Cymru Welsh Water River Taff Phyllis Street CSO, Troedyrhiw 3 0 100
Dwr Cymru Welsh Water River Taff TROEDYRHIW PS 3 0 98.5
Dwr Cymru Welsh Water River Taff Taff St CSO, Pontypridd 1 0 99.9
Dwr Cymru Welsh Water River Taff TRUNK CSO 2A OFF ABERFAN ROAD 0 0 15.8
Dwr Cymru Welsh Water River Taff CSO WILLOW GAS WORKS MERTHYR TYDFIL 0 0 0
Dwr Cymru Welsh Water River Taff YNYSANGHARAD HIGH LEVEL RELIEF CSO 0 0 99.9
Dwr Cymru Welsh Water River Taff Sion Street Sewage Pumping Station 0 0 99.8

Data Sources & Accuracy

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.