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Blackwater polluted by sewage 60 times in 2023 - lasting 422 hours

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
Totals for Blackwater in 2023
4 Sites polluted by Thames Water
60 sewage dumps
422 h duration
That's 17.58 days. 1.2 times a week, on average

Pollution Summary 2023

Here are all the reported sewage overflow totals for Blackwater in 2023. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page. We're working on it.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water Blackwater Sandhurst 18 145 100
Thames Water Blackwater Camberley 26 139 99.8
Thames Water Blackwater Ash Vale 15 137 99.8
Thames Water Blackwater SWS, SOUTH LANE, ASH, SURREY 1 0 95.6

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.