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Polluted by sewage 72 times in 2025 lasting 295 hours
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Donate NowHere are all the reported sewage overflow totals for Prestatyn in 2025. 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 place all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Dwr Cymru Welsh Water | Prestatyn Gutter | PRESTATYN SPS MARINE RD EAST | 15 | 93 | 99.9 |
| Dwr Cymru Welsh Water | Prestatyn Gutter | Meliden Holding Tank - CSO | 14 | 77 | 99.8 |
| Dwr Cymru Welsh Water | Rhyl Cut | Coast Road PS Rhyl | 9 | 47 | 99.7 |
| Dwr Cymru Welsh Water | An Open Discharging To Prestatyn Gutter | Dyserth Bay SPS | 5 | 23 | 99.6 |
| Dwr Cymru Welsh Water | Prestatyn Gutter | CORONATION GARDENS PS | 6 | 18 | 66.4 |
| Dwr Cymru Welsh Water | Overflow Via Sewerage System S | PRESTATYN PURBECK PS | 7 | 11 | 99.9 |
| Dwr Cymru Welsh Water | Prestatyn Gutter | PRESTATYN MELIDEN ROAD - SSO | 9 | 11 | 99.6 |
| Dwr Cymru Welsh Water | Rhyl Cut | MARINE PARK PS | 3 | 6 | 99.9 |
| Dwr Cymru Welsh Water | Overflow Via Sewerage System S | PRESTATYN MALL PS | 4 | 6 | 99.9 |
| Dwr Cymru Welsh Water | Nant Mill Stream | PRESTATYN NANT HALL PS NANT HALL RO | 0 | 0 | 99.9 |
| Dwr Cymru Welsh Water | Railway Ditch | PRESTATYN NANT HALL PS NANT HALL RO | 0 | 0 | 99.9 |
| Dwr Cymru Welsh Water | Overflow Via Sewage System Sur | PRESTATYN NANT PS | 0 | 0 | 99.9 |
| Dwr Cymru Welsh Water | Prestatyn Gutter | PRESTATYN SEVEN SISTERS ROAD SPS | 0 | 0 | 99.9 |
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. Live sewage data from Stream Water API
Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org