Cardiff South and Penarth polluted by sewage 634 times in 2022 - lasting 5,677 hours

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Contains OS Data © Crown copyright & database right 2021-2022
© Top of the Poops 2021-2023
✔ means we have experimental daily data for 2023
Totals for Cardiff South and Penarth in 2022
18 Sites polluted by Dwr Cymru Welsh Water
634 sewage dumps
5,677 h duration
That's 7.88 months. On average 1.7 times a day

Pollution Summary 2022

Here are all the reported sewage overflow totals for Cardiff South and Penarth 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 River Rhymney Ball Lane CSO 145 2,426 99.9
Dwr Cymru Welsh Water River Taff Estuary Harrowby Street PS 47 624 100
Dwr Cymru Welsh Water Severn Estuary Settled Storm Overflow at Cardiff Eastern District Pumping Station 59 621 100
Dwr Cymru Welsh Water Severn Estuary CARDIFF EAST DISTRICT LONG OUTFALL 59 621 100
Dwr Cymru Welsh Water Coastal Waters Off Lavernock P COG MOORS STW CDIFF RD DINAS POWYS 54 530 100
Dwr Cymru Welsh Water Sully Brook CSO and EO at Penarth Stonylands Pumping Station, Penarth 29 248 99.7
Dwr Cymru Welsh Water Severn Estuary PENARTH HEAD SEWAGE PUMPING STATION 49 197 100
Dwr Cymru Welsh Water Severn Estuary CARDIFF CENTRAL SPS TREMORFA 54 182 100
Dwr Cymru Welsh Water Severn Estuary BROCKHILL RISE & LAVERNOCK RD SSO'S 66 145 100
Dwr Cymru Welsh Water Severn Estuary Penarth Marina SPS 15 26 22.5
Dwr Cymru Welsh Water Severn Estuary KYMIN PS PENARTH CARDIFF , 24 22 100
Dwr Cymru Welsh Water River Ely Penarth Llandough Moors Cardiff CSO, Cardiff 13 19 99.2
Dwr Cymru Welsh Water Severn Estuary OCEAN PARK PS TREMORFA FORESHORE RO 2 5 100
Dwr Cymru Welsh Water Sully Brook Sully Moors Road SPS 6 3 99.9
Dwr Cymru Welsh Water River Rhymney Fishponds Road No22 CSO, Llanrumey 4 3 87.8
Dwr Cymru Welsh Water Sully Brook A Combined Sewer Overflow Rear Of 2 1 100
Dwr Cymru Welsh Water River Ely Estuary Cogan SPS 4 1 94.7
Dwr Cymru Welsh Water River Rhymney Rumney Hill CSO 2 0 95.5
Dwr Cymru Welsh Water River Ely Cogan Storm Tank Cogan Penarth 0 0 100
Dwr Cymru Welsh Water River Ely Penarth Road WDPS 0 0 100
Dwr Cymru Welsh Water Cardiff Bay Grangetown SPS 0 0 100
Dwr Cymru Welsh Water Rhymney River Hartland Road PS 0 0 100
Dwr Cymru Welsh Water Cardiff Bay Curran 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

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.

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