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Arundel and South Downs

Polluted by sewage 1,164 times in 2025 lasting 12,154 hours - That's 1.41 years!

Monitoring fell below 50% in some locations so could be more

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

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Live data for Arundel and South Downs in 2026

So far this year (as of 18 May 2026, 12:00) there has been 16,571 hours of sewage overflows, from 70 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 1.92 years!

Totals for Arundel and South Downs in 2025

32 Sites polluted by Southern Water
1,164 sewage dumps
12,154 hours duration
That's 1.41 years. On average 3.2 times a day

Change Over Time

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Waterways in Arundel and South Downs

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Arundel and South Downs in 2025. 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 34 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway locations had reporting enabled for less than half the year.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Southern Water Lidsey Rife LIDSEY WWTW 157 2,406 100
Southern Water River Rother SOUTH HARTING WWTW 97 2,201 100
Southern Water Loxwood Stream LOXWOOD WWTW BREWHURST LANE LOXWOOD 64 1,051 100
Southern Water River Rother BARNETTS BRIDGE GRAFFHAM CEO 64 988 99.9
Southern Water Honeybridge Striver R.Adur ASHINGTON WWTW, LONDON ROAD 59 742 100
Southern Water River Rother FITTLEWORTH S.T.W. 92 599 99.5
Southern Water River Kird NORTHCHAPEL S.T.W. 40 471 99.8
Southern Water Barnham Rife MARSHALL CLOSE CSO - BARNHAM 71 433 100
Southern Water Unnamed Tidal River Adur SMALL DOLE WWTW 37 367 99.9
Southern Water Chess Brook HENFIELD WASTEWATER TREATMENT WORKS 36 327 93
Southern Water River Lod FERNHURST WWTW 34 322 100
Southern Water Loxwood Stream ONSLOW ARMS PUMPING STATION 30 320 100
Southern Water River Rother SOUTH AMBERSHAM WWTW 28 316 100
Southern Water River Kird WISBOROUGH GREEN WWTW 25 258 100
Southern Water Freshwater River HOLLANDS ROAD PUMPING STATION 40 206 99.6
Southern Water River Rother ROGATE WWTW 25 193 100
Southern Water River Arun BURY WWTW 17 183 99.7
Southern Water Black Sewer River Adur STEYNING WWTW 17 129 99.9
Southern Water River Stor STORRINGTON WWTW, STORRINGTON 16 124 100
Southern Water Tidal Waters Of River Arun ARUNDEL PUMPING STATION 93 115 91
Southern Water River Rother PETWORTH WASTEWATER TREATMENT WORKS 36 91 100
Southern Water River Rother West THE LEYS FENHURST CSO 16 77 86.1
Southern Water Freshwater River IPING NORT CSO 9 59 100
Southern Water River Rother West GLEBE ROAD FERNHURST CSO 11 48 97
Southern Water River Lod LURGASHALL WWTW 8 43 100
Southern Water Freshwater River CSO AT TOWN QUAY PS ARUNDEL 20 25 100
Southern Water River Adur ABBEY ROAD STEYNING CSO 14 19 100
Southern Water Freshwater River CSO AT THE WHARF PS SOUTH AMBERSHAM 3 12 100
Southern Water River Arun COLDWALTHAM WWTW 1 8 99.9
Southern Water Freshwater River BRIDGEFOOT PUMPING STATION 1 6 100
Southern Water River Adur WYKEHAM CLOSE STEYNING CSO 2 0 24.7
Southern Water Freshwater River KINGSBARN LANE PUMPING STATION 1 0 99.8
Southern Water River Lavant PUMPING STATION IN FIELD NUMBER 0 0 99.9
Southern Water River Adur TOTTINGTON DRIVE SMALL DOLE CEO 0 0 99.9

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. Live sewage data from Stream Water API

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.

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