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Reading West and Mid Berkshire was polluted by sewage 644 times in 2023
lasting 11,087 hours - that's 1.28 years!
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Reading West and Mid Berkshire in 2023
9 Sites polluted by Thames Water
644 sewage dumps
11,087 h duration
That's 1.28 years! On average 1.8 times a day
Change Over Time
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Daily Data Since 2023
     Monitoring Online      Monitoring Offline      Polluting      Potentially Polluting      Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2023

Here are all the reported sewage overflow totals for Reading West and Mid Berkshire in 2023. 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 1 of the total 11 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Thames Water Foudry Brook MORTIMER (STRATFIELD MORTIMER) WWTW 150 3,304 99.4
Thames Water Clay Hill Brook BURGHFIELD STW, BURGHFIELD, BERKS 132 2,861 92.2
Thames Water River Bourne CHAPEL ROW (BERKS) WWTW 85 1,362 100
Thames Water Briff Lane Stream Bucklebury 85 1,303 96.2
Thames Water River Pang HAMPSTEAD NORREYS STW, BERKS 83 1,295 99.4
Thames Water Webbs Lane Stream BEENHAM (KEALES COPSE) WWTW 62 531 100
Thames Water Groundwater Via Land Treatment ALDERMASTON WWTW 39 341 100
Thames Water River Sul PANGBOURNE WWTW 5 82 99.9
Thames Water Kennet MIDGHAM WWTW 3 5 98.2
Thames Water Kennet Woolhampton 0 0 0
Thames Water River Pang COMPTON SEWAGE TREATMENT WORKS 0 0 99

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.