Swansea East was polluted by sewage 1,273 times in 2023
lasting 5,338 hours
- but monitoring was disabled in some locations, so could be more

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Swansea East in 2023
35 Sites polluted by Dwr Cymru Welsh Water
1,273 sewage dumps
5,338 h duration
That's 7.41 months. On average 3.5 times a day
Change Over Time
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Constituencies near Swansea East
Waterways in Swansea East

Pollution Summary 2023

Here are all the reported sewage overflow totals for Swansea East 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 3 of the total 40 CSO locations had reporting enabled for less than half the year, of which 3 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Tawe CSO Ynysforgan Roundabout 105 1,210 100
Dwr Cymru Welsh Water Culvert Of Bwrlais Brook CWMBWRLA CSO CWMBWRLA RBOUT SWANSEA 138 976 100
Dwr Cymru Welsh Water River Tawe WYCHTREE STREET CSO MORRISTON 94 824 100
Dwr Cymru Welsh Water Nant-Bran Felin Fran CSO Walters Rd Llansamle 69 414 98.8
Dwr Cymru Welsh Water Nant-Y-Fendrod Samlet Rd CSO 103 68 400 99.5
Dwr Cymru Welsh Water River Tawe CSO 70 A4067 Nthbnd Landore Swansea 106 358 99.5
Dwr Cymru Welsh Water River Tawe Glais CSO 43 129 99.8
Dwr Cymru Welsh Water River Tawe Glais SPS 43 129 99.8
Dwr Cymru Welsh Water River Tawe Bonymaen Rd CSO 71 113 99.9
Dwr Cymru Welsh Water River Llan Blaenymaes Drive CSO 49 111 99.8
Dwr Cymru Welsh Water Culvert Of Cwm Gelli Stream BRYNHYFRYD CSO LLANGYFELACH ROAD 60 85 99.9
Dwr Cymru Welsh Water Nant-Y-Fendrod DRUMAU FARM BIRCHGROVE RD P.S. CSO 24 81 82.5
Dwr Cymru Welsh Water River Tawe Pentrechwyth Rd CSO 57 81 99.7
Dwr Cymru Welsh Water Swansea Bay Swansea Waste Water Treatment Works 19 80 99.3
Dwr Cymru Welsh Water Nant Cwmgelli Via Surface Water Drains CSO at Penlan Cresent (Point 52A) Swansea 67 70 99.7
Dwr Cymru Welsh Water River Llan Skomer Place CSO, Blaen Y Maes 39 67 99.8
Dwr Cymru Welsh Water Nant Bran PENIEL GREEN CSO PENIEL GREEN ROAD 11 63 35.1
Dwr Cymru Welsh Water River Tawe Opp 74 Bonymaen Rd CSO, Swansea , 30 32 49
Dwr Cymru Welsh Water An River Llan BLAEN Y MAES POINT 65 CSO SWANSEA 42 30 99.9
Dwr Cymru Welsh Water Nant Cwm Gelli MYNYDDGARNLLWYD CSO SWANSEA 27 13 85.1
Dwr Cymru Welsh Water River Llan Mynydd Newydd Rd CSO 7 10 100
Dwr Cymru Welsh Water Nant Bran Via Culverted Watercourse Heol Dulais CSO at Birchgrove 9 8 99.5
Dwr Cymru Welsh Water Estuarial Waters Of Swansea Ba SWO. QUEENS DOCK (POINT 92 NEW 14 8 99.7
Dwr Cymru Welsh Water Culvert Of Cwm Gelli Stream CSO 69 TRWYDDFA ROAD SWANSEA 20 7 82
Dwr Cymru Welsh Water Crymlyn Bog CSO HALFWAY CRYMLYN ROAD PS 6 6 98.4
Dwr Cymru Welsh Water Surface Water Culvert, An Nant Bran Birchgrove Road CSO 12 6 100
Dwr Cymru Welsh Water River Llan Via Surface Water Sewer Cadle Common CSO 8 6 78.5
Dwr Cymru Welsh Water River Llan Cadleroad Road CSO 9 4 44
Dwr Cymru Welsh Water Cwmrhydyceirw Brook Via Surface Water Network CSO 80 Pentrpoeth Rd Morriston 14 3 35.4
Dwr Cymru Welsh Water Nant Melyn Via The Surface Water Sewer CSO 72 Slate St Morriston Swansea 4 1 97.5
Dwr Cymru Welsh Water River Llan Via Surface Water Sewer FFORD-Y-BRAIN/PORT TALBOT PLACE CSO 2 1 75.6
Dwr Cymru Welsh Water Nant Y Fendrod - Headwaters To Conf With Tawe Birchgrove CSO 2 0 100
Dwr Cymru Welsh Water Nant Melyn Via The Surface Water Sewer CSO 81 CWM BATH ROAD MORRISTON 2 0 99.9
Dwr Cymru Welsh Water River Tawe CSO Near Chemical Rd. Morriston 1 0 99.7
Dwr Cymru Welsh Water Nant Bran Via Culvert Trallwyn Community Centre CSO 1 0 99.9
Dwr Cymru Welsh Water Surface Water Sewer To Cwm Gelli Stream CSO 64A PENLANFACH BRYNHYFRYD 0 0 48.8
Dwr Cymru Welsh Water Cwm Gelli Stream, River Tawe CSO 69A Heol Nant Gelli Swansea 0 0 99.7
Dwr Cymru Welsh Water River Tawe CSO Ynystawe (Point 86 New Ma) 0 0 0
Dwr Cymru Welsh Water Nant Melyn Via The Surface Water Sewer CSO 73 CROWN ST MORRISTON SWANSEA 0 0 0
Dwr Cymru Welsh Water Nant Bran Adj 27 Bethel Rd Llansamlet CSO 0 0 0

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.

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