Caerphilly polluted by sewage 762 times in 2022 - lasting 3,009 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 Caerphilly in 2022
21 Sites polluted by Dwr Cymru Welsh Water
762 sewage dumps
3,009 h duration
That's 4.18 months. On average 2.1 times a day

Pollution Summary 2022

Here are all the reported sewage overflow totals for Caerphilly 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 Porset Brook CSO at Lansbury Park Estate 136 1,151 98.4
Dwr Cymru Welsh Water River Rhymney CWM LAS CSO 49 667 99.3
Dwr Cymru Welsh Water Nant Yr Aber Graig-Y-Fedw CSO 84 363 98.2
Dwr Cymru Welsh Water Nant Y Aber Combined Sewer Overflow at Bryn Siriol 71 195 98.9
Dwr Cymru Welsh Water River Rhymney Tir-y-Berth behind William St 68 151 99.3
Dwr Cymru Welsh Water River Rhymney A CSO AT YSTRAD MYNACH BRIDGE 70 93 97
Dwr Cymru Welsh Water River Rhymney Forge Engineering CSO, Bedwas 33 76 99.6
Dwr Cymru Welsh Water River Rhymney CSO at rear of Margaret St., Gilfach 29 69 91.7
Dwr Cymru Welsh Water Nant Cylla Oaks End Close CSO 44 66 99.7
Dwr Cymru Welsh Water River Rhymney CSO BARGOED 59 65 77.2
Dwr Cymru Welsh Water Nant Yr Aber Crossways Retail Park CSO 20 47 99.6
Dwr Cymru Welsh Water Nant Bargoed Rhymney CSO AT ABERBARGOED VIADUCT 4 22 3.2
Dwr Cymru Welsh Water River Rhymney Asset No. 32207 Celtic Steel Factory CSO 28 10 99.9
Dwr Cymru Welsh Water Nant Yr Aber CSO Rear Commerc'l St Senghenydd 18 9 100
Dwr Cymru Welsh Water River Rhymney High St CSO, Glan-y-Nant 8 7 100
Dwr Cymru Welsh Water Nant Yr Aber Windsor Place Senghenydd CSO 13 3 100
Dwr Cymru Welsh Water Nant Cwm-Parc 64 Commercial Streetreet CSO, Senghenydd 11 3 99.2
Dwr Cymru Welsh Water River Rhymney Forge Rd CSO, Machen 10 2 99.4
Dwr Cymru Welsh Water River Rhymney Newport Rd CSO, Trethomas 4 1 96.7
Dwr Cymru Welsh Water Nant Yr Aber Abertridwr Coed Cae Road 1 CSO 2 0 80.8
Dwr Cymru Welsh Water Rhymney R - Nant Bargod Rhymni To Conf Nant Cyl Fleur-de-Lys - Rear of Glanddu CSO 1 0 99.6
Dwr Cymru Welsh Water Nant Caeach Combined Sewer Overflow at Rear of 33 Church Street 0 0 100
Dwr Cymru Welsh Water River Rhymney BEDWAS SUNNYBANK FARM CSO 0 0 0
Dwr Cymru Welsh Water Rhymney River Old Prince Albert Hotel CSO, Hengoed 0 0 100
Dwr Cymru Welsh Water Nant-Yr-Aber 86 Nantgarw Rd CSO 0 0 99.6
Dwr Cymru Welsh Water River Rhymney COMBINED SEWER OVERFLOW SERVING 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.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.