Aylesbury was polluted by sewage 597 times in 2024
lasting 7,089 hours

Constituency

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✔ means we have experimental daily data since 2023

Live data for Aylesbury in 2025

So far this year (as of Apr 16, 2025, 6:00 PM) there has been 911 hours of sewage overflows

Totals for Aylesbury in 2024

10 Sites polluted by Anglian Water, Thames Water

597 sewage dumps
7,089 h duration

That's 9.85 months. On average 1.6 times a day

Change Over Time

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Constituencies near Aylesbury

Waterways in Aylesbury

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Aylesbury, 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

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for Aylesbury 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 0 of the total 11 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Anglian Water	Coombe Bottom Brook, R Ouzel	PUMPING STN AT IVINGHOE ASTON STW	131	2,081	95.4
Thames Water	Rowsham Brook	WINGRAVE WASTEWATER TREATMENT WORKS	88	1,333	99.4
Anglian Water	Whistle Brook, River Ouzel	IVINGHOE STW	135	1,276	66.7
Thames Water	River Thame	AYLESBURY WWTW	54	663	100
Thames Water	Groundwater Via Infilt System	DAGNALL WASTEWATER TREATMENT WORKS	53	460	99.5
Anglian Water	River Ouzel	NORTHALL PUMPING STATION	42	459	100
Anglian Water	Un River Ouzel	MENTMORE STW	25	331	100
Thames Water	Rowsham Brook	ROWSHAM WASTEWATER TREATMENT WORKS	25	225	100
Anglian Water	Wing Brook River Ouzel	CUBLINGTON (WING) STW	25	143	90.2
Thames Water	Thame	Marsworth	19	114	99.9
Thames Water	Tring Bourne	WATERY LANE SPS	0	0	100

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.

Analysing sewage pollution by the Water Industry

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