Here are all the reported sewage overflow totals for Caerphilly 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 1 of the total 26 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | Porset Brook | CSO at Lansbury Park Estate | 183 | 2,557 | 98.2 |
| Dwr Cymru Welsh Water | River Rhymney | CWM LAS CSO | 98 | 1,107 | 99 |
| Dwr Cymru Welsh Water | Nant Bargoed Rhymney | CSO AT ABERBARGOED VIADUCT | 56 | 591 | 100 |
| Dwr Cymru Welsh Water | Nant Y Aber | Combined Sewer Overflow at Bryn Siriol | 101 | 355 | 95.9 |
| Dwr Cymru Welsh Water | Nant Yr Aber | Graig-Y-Fedw CSO | 55 | 239 | 96.8 |
| Dwr Cymru Welsh Water | Nant Caeach | Combined Sewer Overflow at Rear of 33 Church Street | 14 | 183 | 99.9 |
| Dwr Cymru Welsh Water | River Rhymney | Tir-y-Berth behind William St | 67 | 164 | 99.3 |
| Dwr Cymru Welsh Water | River Rhymney | Forge Engineering CSO, Bedwas | 48 | 154 | 96.8 |
| Dwr Cymru Welsh Water | River Rhymney | CSO BARGOED | 62 | 105 | 91.7 |
| Dwr Cymru Welsh Water | Nant Cylla | Oaks End Close CSO | 49 | 99 | 99.7 |
| Dwr Cymru Welsh Water | River Rhymney | A CSO AT YSTRAD MYNACH BRIDGE | 74 | 96 | 98.5 |
| Dwr Cymru Welsh Water | Nant Yr Aber | Crossways Retail Park CSO | 22 | 58 | 99.4 |
| Dwr Cymru Welsh Water | Nant Yr Aber | CSO Rear Commerc'l St Senghenydd | 31 | 39 | 100 |
| Dwr Cymru Welsh Water | River Rhymney | Newport Rd CSO, Trethomas | 20 | 39 | 99.2 |
| Dwr Cymru Welsh Water | River Rhymney | CSO at rear of Margaret St., Gilfach | 32 | 36 | 95.1 |
| Dwr Cymru Welsh Water | River Rhymney | High St CSO, Glan-y-Nant | 13 | 19 | 99.9 |
| Dwr Cymru Welsh Water | River Rhymney | Forge Rd CSO, Machen | 19 | 16 | 99.7 |
| Dwr Cymru Welsh Water | River Rhymney | Asset No. 32207 Celtic Steel Factory CSO | 24 | 13 | 99.7 |
| Dwr Cymru Welsh Water | Nant Yr Aber | Windsor Place Senghenydd CSO | 4 | 7 | 100 |
| Dwr Cymru Welsh Water | Nant Cwm-Parc | 64 Commercial Streetreet CSO, Senghenydd | 11 | 7 | 99 |
| Dwr Cymru Welsh Water | Nant-Yr-Aber | 86 Nantgarw Rd CSO | 1 | 0 | 32.7 |
| Dwr Cymru Welsh Water | Rhymney R - Nant Bargod Rhymni To Conf Nant Cyl | Fleur-de-Lys - Rear of Glanddu CSO | 1 | 0 | 99.9 |
| Dwr Cymru Welsh Water | Nant Yr Aber | Abertridwr Coed Cae Road 1 CSO | 1 | 0 | 100 |
| Dwr Cymru Welsh Water | River Rhymney | COMBINED SEWER OVERFLOW SERVING | 0 | 0 | 100 |
| Dwr Cymru Welsh Water | Rhymney River | Old Prince Albert Hotel CSO, Hengoed | 0 | 0 | 100 |
| Dwr Cymru Welsh Water | River Rhymney | BEDWAS SUNNYBANK FARM CSO | 0 | 0 | 0 |
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.
