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Mid Sussex

Polluted by sewage 744 times in 2025 lasting 4,289 hours

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 Mid Sussex in 2026

So far this year (as of 6 Oct 2026, 07:30) there has been 4,419 hours of sewage overflows, from 48 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in Mid Sussex

On 14 occasions since December 2024, no rain fell anywhere in Mid Sussex for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

Totals for Mid Sussex in 2025

23 Sites polluted by Southern Water
744 sewage dumps
4,289 hours duration
That's 5.96 months. On average 2 times a day

Change Over Time

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Sewage pollution map of Mid Sussex: 744 spills in 2025, lasting 4,289 hours, by Southern Water
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Pollution Summary 2025

Here are all the reported sewage overflow totals for Mid Sussex 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 25 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 River Adur East GODDARDS GREEN WWTW 72 817 95.2
Southern Water River Adur FOXHILL HAYWARDS HEATH CEO 59 758 99.9
Southern Water Unnamed Herrings Stream WILLOW WAY HURSTPIERPOINT CSO 64 543 100
Southern Water River Adur CUCKFIELD WWTW 47 484 100
Southern Water Freshwater River LEWES ROAD LINDFIELD 50 429 100
Southern Water Freshwater River REAR OF 35 PELHAM ROAD 50 286 99.6
Southern Water River Adur FAIRPLACE HILL WPS 30 156 99.5
Southern Water Freshwater River HURSTPIERPOINT PUMPING STATION 27 139 100
Southern Water River Ouse STAPLEFIELD WWTW 19 124 100
Southern Water Freshwater River FREEKS LANE BURGESS HILL CSO 30 123 82.3
Southern Water Scrase Stream WILLIAM ALLEN LANE CSO 32 110 99.6
Southern Water Pook Bourne MALTHOUSE LANE PUMPING STATION 30 82 99.9
Southern Water River Adur FELRIDE HAYWARDS HEATH CSO 17 62 39
Southern Water Scrase Stream PASTURE HILL ROAD COMBINED SEWER 10 50 99.8
Southern Water Freshwater River BOLNEY SEWAGE PUMPING STATION 6 47 99.3
Southern Water River Adur Via Sws RUMBOLDS LANE HAYWARDS HEATH CEO 13 41 100
Southern Water Freshwater River NOAHS ARK LANE PS 2 12 100
Southern Water Freshwater River PORTSMOUTH LANE CSO 2 6 100
Southern Water Of Scrase Bridge Stream WESTERN ROAD HAYWARDS HEATH CSO 168 6 99.7
Southern Water Freshwater River CUCKFIELD ROAD 10 2 98.6
Southern Water Controlled Sea LONDON ROAD BURGESS HILL CSO 2 0 97.4
Southern Water Pookbourne Stream PARK ROAD BURGESS HILL CSO 2 0 62.3
Southern Water Scrase Bridge Stream MILL GREEN ROAD HAYWARDS 2 0 99.6
Southern Water Freshwater River JUNCTION EASST OF FAIRPLACE HILL 0 0 87.9
Southern Water Adjacent Stream. River Adur POYNINGS WWTW, BRIGHTON 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. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

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.