Neath and Swansea East was polluted by sewage 3,619 times in 2024
lasting 25,655 hours - that's 2.97 years!
- but monitoring was disabled in some locations, so could be more

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
Select the constituency from the drop-down
✔ means we have experimental daily data since 2023
Totals for Neath and Swansea East in 2024
69 Sites polluted by Dwr Cymru Welsh Water
3,619 sewage dumps
25,655 h duration
That's 2.97 years! On average 9.9 times a day
Change Over Time
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Constituencies near Neath and Swansea East
Waterways in Neath and Swansea East

Pollution Summary 2024

Here are all the reported sewage overflow totals for Neath and Swansea East in 2024. 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 2 of the total 75 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Dulais CRYNANT STW CRYNANT NEATH 258 5,190 99.9
Dwr Cymru Welsh Water River Dulais YS.MARCH CRYNANT SWO 2C 185 2,583 95.2
Dwr Cymru Welsh Water Swansea Bay BAGLAN SPS BRITON FERRY NEATH 191 2,232 97.1
Dwr Cymru Welsh Water River Camnant Onllwyn SPS 130 1,447 99.9
Dwr Cymru Welsh Water Neath Estuary FABIAN WAY SPS FABIAN WAY SWANSEA 77 1,312 98.9
Dwr Cymru Welsh Water River Tawe Inco CSO Clydach Swansea 135 1,198 95.8
Dwr Cymru Welsh Water Neath Estuary Dynevor Junction SPS 124 1,147 99.4
Dwr Cymru Welsh Water River Dulais Nant-y-Cafan CSO, Dulais Valley 126 1,112 97.7
Dwr Cymru Welsh Water Melin Court Brook MOSES ROW CSO RESOLVEN NEATH 85 936 99.2
Dwr Cymru Welsh Water Swansea Bay Swansea Waste Water Treatment Works 92 730 99.8
Dwr Cymru Welsh Water River Neath Park Avenue CSO 172 707 95.5
Dwr Cymru Welsh Water River Neath CSO 48 NEATH RIVER BRIDGE ADJ CALOR 113 539 99.8
Dwr Cymru Welsh Water River Clydach CSO 27 Farmers Road Pumping Station 87 497 99.8
Dwr Cymru Welsh Water Estuarial Waters Of River Neath Melincryddan SPS 84 406 99.6
Dwr Cymru Welsh Water River Neath CWMGWRCH STW CWMGWRCH NEATH 39 401 100
Dwr Cymru Welsh Water Nant-Bran Felin Fran CSO Walters Rd Llansamle 59 390 98.8
Dwr Cymru Welsh Water Tennant Canal OLD ROAD CSO OLD ROAD SKEWEN NEATH 102 374 99.8
Dwr Cymru Welsh Water Estuarial Waters Of River Neath Fairfield SPS, Neath 93 351 93.5
Dwr Cymru Welsh Water River Clydach Neath Abbey SPS 88 348 99.8
Dwr Cymru Welsh Water River Neath CSO AT REAR GODFREY AVENUE GLYNNEATH NPT 81 315 99.8
Dwr Cymru Welsh Water Nant-Y-Fendrod Samlet Rd CSO 103 46 294 98.7
Dwr Cymru Welsh Water River Neath Chainbridge CSO, Glyn-Neath 32 248 57.4
Dwr Cymru Welsh Water Lower Clydach River Canal CSO. Towpath Off Hebron Road, Clydach 71 227 98.6
Dwr Cymru Welsh Water Tennant Canal CSO 49 LLANGATWG SCHOOL ABERDULIAS 35 214 99.8
Dwr Cymru Welsh Water River Clydach CSO 8 Bryncoch 7B Bryncoch 18 209 99.8
Dwr Cymru Welsh Water River Neath Via Surface Water Sewer Plas-Y-Coed CSO, Glynneath 64 198 98.5
Dwr Cymru Welsh Water River Neath Via Surface Water Sewer Penrhiwtyn SPS 16 158 99.8
Dwr Cymru Welsh Water River Neath Clyne SPS Clyne Neath Neath Port T 29 142 61.9
Dwr Cymru Welsh Water River Dulais BRYNDULAIS CSO 42 123 99.8
Dwr Cymru Welsh Water Estuarial Waters Of River Neath Pentreffynnon Sewage Pumping Station at Neath Abbey Ind Estate, Neath 41 120 99.3
Dwr Cymru Welsh Water River Tawe Glais CSO 36 117 99.8
Dwr Cymru Welsh Water River Tawe Glais SPS 36 117 99.8
Dwr Cymru Welsh Water Nant-Y-Fendrod DRUMAU FARM BIRCHGROVE RD P.S. CSO 38 116 99.8
Dwr Cymru Welsh Water Esturial Water Of River Neath Quay Road PS Town Centre Neath 67 104 98.4
Dwr Cymru Welsh Water River Tawe Bonymaen Rd CSO 61 88 98.2
Dwr Cymru Welsh Water River Clydach CSO NO 10 30M U/S ROADBRIDGE 51 84 97.6
Dwr Cymru Welsh Water River Neath CSO IN FOOTPATH ADJ BETHEL RD 30 69 99.3
Dwr Cymru Welsh Water River Tawe Pentrechwyth Rd CSO 49 67 98.9
Dwr Cymru Welsh Water River Tawe Opp 74 Bonymaen Rd CSO, Swansea , 55 65 93.3
Dwr Cymru Welsh Water Nant Bran PENIEL GREEN CSO PENIEL GREEN ROAD 21 62 79.6
Dwr Cymru Welsh Water Neath - Conf With Nedd Fechan And Mellte To Tl CSO at Resolven Above Clydach Brook 23 58 98.8
Dwr Cymru Welsh Water River Clydach Rear No 1 Dyffryn V'W Bryn Coch CSO 25 57 99.8
Dwr Cymru Welsh Water River Neath Gnoll Park Road CSO 76 50 99.3
Dwr Cymru Welsh Water To Crymlyn Brook Via A Surface Water Culvert Skewen SPS Park Avenue Lonlas Neath 24 43 99.8
Dwr Cymru Welsh Water Neath Estuary ABERDULAIS SPS 17 43 87
Dwr Cymru Welsh Water Gnoll Brook CSO 33 CIMLA ROAD CIMLA NEATH 20 43 99.3
Dwr Cymru Welsh Water River Neath GUNSIGHT OVERFLOW SWO 11 CSO 30 41 99.3
Dwr Cymru Welsh Water River Clydach Longford Road Neath Abbey CSO 16 32 99.1
Dwr Cymru Welsh Water Tidal River Neath Llandarcy 36" Outfall 33 32 98.4
Dwr Cymru Welsh Water River Neath Commercial Road Sewage Pumping Station 35 30 99.8
Dwr Cymru Welsh Water Estuarial Waters Of Llantwit Stream Llantwit Church SPS 30 29 99.8
Dwr Cymru Welsh Water River Dulais CSO Outside Visitor Centre, Aberdulais 6 23 99.4
Dwr Cymru Welsh Water Lower Clydach River Storm Overflow at Heol Eithrim 20 22 79.1
Dwr Cymru Welsh Water Nant Bran Via Culvert Trallwyn Community Centre CSO 15 21 90.3
Dwr Cymru Welsh Water Hollins Clough Ditch CSO 9 CIMLA COMMON CIMLA NEATH 9 18 98.8
Dwr Cymru Welsh Water Eastland Brook St Joseph's Church CSO 18 12 99.1
Dwr Cymru Welsh Water Tennant Canal Church Road CSO Church Road Neath 5 9 99.8
Dwr Cymru Welsh Water Nant Bran Via Culverted Watercourse Heol Dulais CSO at Birchgrove 8 7 98.8
Dwr Cymru Welsh Water Estuarial Waters Of Swansea Ba SWO. QUEENS DOCK (POINT 92 NEW 17 7 99.3
Dwr Cymru Welsh Water Crymlyn Bog CSO HALFWAY CRYMLYN ROAD PS 5 5 67.5
Dwr Cymru Welsh Water Surface Water Culvert, An Nant Bran Birchgrove Road CSO 8 3 99.1
Dwr Cymru Welsh Water Neath Canal Park Street CSO Park Street Tonna 11 3 98.8
Dwr Cymru Welsh Water Nant Bran Adj 27 Bethel Rd Llansamlet CSO 3 2 47.3
Dwr Cymru Welsh Water River Clydach Monastery Road Cso (Cso 35) Neath 1 1 99.4
Dwr Cymru Welsh Water River Neath HEOL ILLTYD CSO BRYNCOCH NPT 1 0 99.8
Dwr Cymru Welsh Water Tennant Cannal CSO at R/O 38 Caenant Terrace, Neath 1 0 99.5
Dwr Cymru Welsh Water Nant Y Fendrod - Headwaters To Conf With Tawe Birchgrove CSO 1 0 99.4
Dwr Cymru Welsh Water Neath - Conf With Nedd Fechan And Mellte To Tl Adj Health Centre CSO, Dyfed Rd 1 0 98.8
Dwr Cymru Welsh Water Unnamed Stream To Tennant Canal New Road Nursing Home CSO, Skewen 1 0 99.2
Dwr Cymru Welsh Water River Tawe CSO at QUARRY ROAD CLYDACH (POINT 125) 0 0 0
Dwr Cymru Welsh Water River Neath Cadoxton Road CSO Cadoxton Road 0 0 99.8
Dwr Cymru Welsh Water River Dulais BRYNDULAIS (SWO 2A) 0 0 0
Dwr Cymru Welsh Water River Neath RESOLVEN STW STORM TANKS NEATH 0 0 99.9
Dwr Cymru Welsh Water River Neath RESOLVEN STW STORM TANKS NEATH 0 0 100
Dwr Cymru Welsh Water River Tawe Heol Y Nant/Sybil Street Clydach CSO 0 0 16.9

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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