Bognor Regis and Littlehampton was polluted by sewage 533 times in 2024
lasting 6,274 hours

Constituency

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✔ means we have experimental daily data since 2023

Live data for Bognor Regis and Littlehampton in 2025

So far this year (as of Apr 16, 2025, 5:45 PM) there has been 617 hours of sewage overflows

Totals for Bognor Regis and Littlehampton in 2024

13 Sites polluted by Southern Water

533 sewage dumps
6,274 h duration

That's 8.71 months. On average 1.5 times a day

Change Over Time

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Constituencies near Bognor Regis and Littlehampton

Waterways in Bognor Regis and Littlehampton

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Bognor Regis and Littlehampton, 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 Bognor Regis and Littlehampton 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 15 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 %
Southern Water	Controlled Sea	LITTLEHAMPTON WWPS	154	2,604	100
Southern Water	Tidal River Arun	SOUTH TERRACE LITTLEHAMPTON CSO	122	1,977	100
Southern Water	Controlled Sea	BOGNOR REGIS WASTEWATER PS	136	1,270	100
Southern Water	Tidal River Arun	CSO EAST ST/AVON RD LITTLEHAMPTON	66	141	99.9
Southern Water	Freshwater River	NEW(BOGNOR MAIN) CSO	20	111	99.9
Southern Water	Ryebank Rife Via Surface Sewer	HOBBS COTTAGE CSO, CLIMPING STREET	8	60	100
Southern Water	Controlled Sea	ALDWICK AVENUE CSO	4	39	100
Southern Water	Freshwater River	SHRIPNEY ROAD P.S.	3	26	100
Southern Water	Ryebank Rife/River Arun	ANCTON LANE MIDDLETON-ON-SEA CSO	3	15	99.9
Southern Water	Freshwater River	GLOUCESTER ROAD CSO	7	9	99.8
Southern Water	Controlled Sea	ALDWICK ROAD/VICTORIA ROAD CSO	4	7	99.6
Southern Water	Bartons Lane Ald	CHICHESTER ROAD BOGNOR CSO	4	6	99.8
Southern Water	Controlled Sea	BROADMARK PUMPING STATION	2	2	100
Southern Water	Freshwater River	WATER LANE/ARUNDEL ROAD	0	0	100
Southern Water	Controlled Sea English Channel	CARLTON AVENUE BOGNOR CSO	0	0	98.4

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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