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Milford Haven Waterway polluted by sewage 150 times in 2025 - lasting 1,444 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024
Totals for Milford Haven Waterway in 2025
4 Sites polluted by Dwr Cymru Welsh Water
150 sewage dumps
1,444 h duration
That's 2.01 months. 2.9 times a week, on average
Constituencies along Milford Haven Waterway
Places along Milford Haven Waterway

Pollution Summary 2025

Here are all the reported sewage overflow totals for Milford Haven Waterway in 2025. Sometimes sewage can be being dumped for months at a time.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water Milford Haven Waterway DALE WWTW DALE MILFORD HAVEN PEMBS 62 895 100
Dwr Cymru Welsh Water Milford Haven Waterway BURTON FERRY WWTW NEYLAND PEMBS 57 445 99.9
Dwr Cymru Welsh Water Milford Haven Waterway MILFORD HAVEN STW 18 98 99.9
Dwr Cymru Welsh Water Milford Haven Waterway PEMBROKE DOCK WASTEWATER TREATMENT 13 6 99.9

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. Live sewage data from Stream Water API

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.