Designated shellfish area 'Dee (East)' polluted by sewage 615 times in 2024 - lasting 4,930 hours

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Contains OS Data © Crown copyright & database right 2021-2024
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Totals for Dee (East) in 2024
15 Sites polluted by Dwr Cymru Welsh Water, United Utilities
615 sewage dumps
4,930 h duration
That's 6.85 months. On average 1.7 times a day
How does Dee (East) compare?

Dee (East) was the #7 most polluted shellfish area in England & Wales, by duration of sewage overflows, as reported by the water companies

Pollution Summary 2024

Here are all the reported sewage overflow totals for Dee (East) in 2024.

Accuracy Warning We use data from the water companies, but we are seeing many anomalies, that make us believe that location information is quite poor. The situation is likely far worse than reported here.

In particular: Totals on this page can differ from totals in the Ranked Shellfish page - number on this page are higher - this is due to a lack of standardization on shellfish area names. This page more accurately counts the differing names. For example "Solway" and "SOLWAY" are counted as different in the rankings, but correctly aggregated here.

Other CSOs may also be located nearby, however the water companies claim that these do not affect the water quality here.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water Dee Estuary NESTON PARKGATE PUMPING STATION 145 1,576 99.9
Dwr Cymru Welsh Water Stanney Brook NESTON WASTEWATER TREATMENT WORKS 125 1,367 99.9
Dwr Cymru Welsh Water Dee Estuary HESWALL WASTEWATER TREATMENT WORKS 58 715 99.5
Dwr Cymru Welsh Water Dee Estuary GREENFIELDS DRIVE CSO 34 329 99.9
Dwr Cymru Welsh Water River Dee Estuary MARSHLANDS ROAD PS 24 308 20.5
Dwr Cymru Welsh Water Pipe To River Dee HESWALL SEABANK ROAD 28 228 32.9
Dwr Cymru Welsh Water Dee Estuary HARP INN CSO 55 137 99.9
Dwr Cymru Welsh Water Stanney Brook TANKFIELDS CSO 49 129 99.9
Dwr Cymru Welsh Water Dee COTTAGE LANE PUMPING STATION 20 57 99.8
Dwr Cymru Welsh Water Dee Estuary 5 DEE COTTAGES CSO 16 26 75.7
Dwr Cymru Welsh Water Unnamed Watercourse GLADSTONE ROAD CSO 17 25 99.9
United Utilities River Dee LONG HEY ROAD CSO 8 18 99
Dwr Cymru Welsh Water River Dee GAYTON PARKWAY CSO 11 7 98.9
Dwr Cymru Welsh Water River Dee Estuary HESWALL STORAGE TANK CSO HESWALL 22 2 99.4
Dwr Cymru Welsh Water Unnamed To River Dee GAYTON CEDARWAY PUMPING STATION 3 0 64.2

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.