Canterbury

Polluted by sewage 196 times in 2024 lasting 1,099 hours

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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✔ means we have experimental daily data since 2023

Live data for Canterbury in 2025

So far this year (as of Apr 30, 2025, 9:00 AM) there has been 214 hours of sewage overflows

Totals for Canterbury in 2024

7 Sites polluted by Southern Water
196 sewage dumps
1,099 hours duration
That's 1.53 months. 3.8 times a week, on average

Change Over Time

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Your local MP is Rosie Duffield (Labour) - Find out more about their interests, donors, and voting at They Work For You

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Canterbury, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online
Monitoring Offline
Polluting
Potentially Polluting
Unknown
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Pollution Summary 2024

Here are all the reported sewage overflow totals for Canterbury in 2024. 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Southern Water North Sea SWALECLIFFE WWTW 76 700 99.7
Southern Water River Great Stour CANTERBURY WASTEWATER TREATMENT WKS 20 202 99.8
Southern Water Tankerton Bay GORRELL OUTFALL VIA DIAMOND RD CSO 23 86 100
Southern Water Great Stour WINCHEAP CANTERBURY CSO 17 45 99.7
Southern Water Great Stour HOSPITAL FARM HARBLEDOWN CEO 17 34 100
Southern Water Controlled Sea TANKERTON BAY OUTFALL 42 24 99.93
Southern Water Freshwater River CHESTFIELD STORM TANKS 1 4 99.9
Southern Water Freshwater River BROOK ROAD WASTEWATER PUMPING 0 0 99.8
Southern Water Great Stour River KINGSMEAD ROAD CANTERBURY CSO 0 0 99.7

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.