Cardiff South and Penarth was polluted by sewage 1,027 times in 2023
lasting 8,091 hours

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Constituency

✔ means we have experimental daily data since 2023

Totals for Cardiff South and Penarth in 2023

20 Sites polluted by Dwr Cymru Welsh Water

1,027 sewage dumps
8,091 h duration

That's 11.24 months. On average 2.8 times a day

Change Over Time

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Constituencies near Cardiff South and Penarth

Waterways in Cardiff South and Penarth

Pollution Summary 2023

Here are all the reported sewage overflow totals for Cardiff South and Penarth 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 0 of the total 23 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 Rhymney	Ball Lane CSO	155	2,149	100
Dwr Cymru Welsh Water	Severn Estuary	Settled Storm Overflow at Cardiff Eastern District Pumping Station	127	1,205	100
Dwr Cymru Welsh Water	Severn Estuary	CARDIFF EAST DISTRICT LONG OUTFALL	127	1,205	100
Dwr Cymru Welsh Water	Coastal Waters Off Lavernock P	COG MOORS STW CDIFF RD DINAS POWYS	97	1,159	100
Dwr Cymru Welsh Water	Sully Brook	CSO and EO at Penarth Stonylands Pumping Station, Penarth	73	772	97.1
Dwr Cymru Welsh Water	Severn Estuary	CARDIFF CENTRAL SPS TREMORFA	105	555	100
Dwr Cymru Welsh Water	Severn Estuary	PENARTH HEAD SEWAGE PUMPING STATION	76	372	100
Dwr Cymru Welsh Water	Severn Estuary	BROCKHILL RISE & LAVERNOCK RD SSO'S	95	333	100
Dwr Cymru Welsh Water	Severn Estuary	Penarth Marina SPS	43	109	56.4
Dwr Cymru Welsh Water	Severn Estuary	KYMIN PS PENARTH CARDIFF ,	38	61	100
Dwr Cymru Welsh Water	Sully Brook	Sully Moors Road SPS	22	51	100
Dwr Cymru Welsh Water	River Ely	Cogan Storm Tank Cogan Penarth	5	41	100
Dwr Cymru Welsh Water	River Taff Estuary	Harrowby Street PS	31	23	99.7
Dwr Cymru Welsh Water	River Rhymney	Fishponds Road No22 CSO, Llanrumey	11	16	99.9
Dwr Cymru Welsh Water	River Ely	Penarth Llandough Moors Cardiff CSO, Cardiff	7	16	15.7
Dwr Cymru Welsh Water	River Ely Estuary	Cogan SPS	7	8	99.3
Dwr Cymru Welsh Water	River Rhymney	Rumney Hill CSO	4	5	99.9
Dwr Cymru Welsh Water	River Ely	Penarth Road WDPS	1	4	100
Dwr Cymru Welsh Water	Severn Estuary	OCEAN PARK PS TREMORFA FORESHORE RO	2	1	99.9
Dwr Cymru Welsh Water	Sully Brook	A Combined Sewer Overflow Rear Of	1	0	100
Dwr Cymru Welsh Water	Rhymney River	Hartland Road PS	0	0	100
Dwr Cymru Welsh Water	Cardiff Bay	Curran SPS	0	0	99.9
Dwr Cymru Welsh Water	Cardiff Bay	Grangetown 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.

Analysing sewage pollution by the Water Industry

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