East Worthing and Shoreham - 2025 Sewage

Polluted by sewage 309 hours in 2025 , monitoring offline 20 hours , potential overflows 389 hours

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Contains OS Data © Crown copyright & database right 2021-2024
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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in East Worthing and Shoreham for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

Totals for East Worthing and Shoreham in 2025

Sewage309 hours
Monitoring offline20 hours
Potential pollution389 hours
Storm overflows18

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Daily Data

Jan - 129 hours
Feb - 18 hours
Mar - 9 hours
Apr - 7 hours
May - 1 hours
Jun - 0 hours
Jul - 18 hours , 301 potential
Aug - 4 hours , 64 potential
Sept - 27 hours , 23 potential
Oct - 43 hours
Nov - 21 hours
Dec - 26 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Southern Water EAST WORTHING CSO - 115407 English Channel 33 161h 4m 301 h
Southern Water SHOREHAM CSO - 115434 English Channel 25 84h 19m 108 h
Southern Water EAST WORTHING CSO - 115407 English Channel 5 18h 50m -
Southern Water Unknown Unknown 2 18h 12m -
Southern Water SHOREHAM CSO - 115434 English Channel 7 16h 42m -
Southern Water ALBION STREET PORTSLADE EMO - 110362 English Channel 3 9h 39m -
Southern Water THE GREEN SOUTHWICK CSO - 108356 Adur Estuary 1 0h 36m -
Southern Water SOMPTING ROAD PENFOLD ROAD WORTHING CSO - 109116 A Of Teville Stream 2 0h -
Southern Water ALBION STREET PORTSLADE EMO - 110362 English Channel 0 0h -
Southern Water THE GREEN SOUTHWICK CSO - 108356 Adur Estuary 0 0h -
Southern Water UPPER SHOREHAM ROAD SHOREHAM CSO - 108819 River Adur 0 0h -
Southern Water IVY ARCH ROAD WORTHING CSO - 108262 Freshwater River 0 0h -
Southern Water Unknown Unknown 0 0h -
Southern Water SOMPTING ROAD WORTHING OUTSIDE 22 CSO - 108336 Teville Stream 0 0h -
Southern Water WIGMORE ROAD WORTHING OUTSIDE XX CSO - 108381 A Of Teville Stream 0 0h -
Southern Water Unknown Unknown 0 0h -
Southern Water EAST WORTHING CEO - 115406 English Channel 0 0h -
Southern Water ROPETACKLE STREET SHOREHAM CEO - 108324 River Adur 0 0h -

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.