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Chichester - Live Sewage

Polluted by sewage 10,698 hours in 2026 - That's 1.24 years so far..

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

Which Year?

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✔ means we have live data (𝑥 if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Chichester so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

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.

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Daily Data

Jan - 2,999 hours
Feb - 6,121 hours
Mar - 1,306 hours
Apr - 6 hours
May - 264 hours
Jun - 0 hours
Jul - 0 hours
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Southern Water LAVANT NO.1 SSO - 115745 River Lavant 99 2,114h 56m -
Southern Water CHICHESTER WTW 1 SSO - 115402 Chichester Harbour 71 1,554h 43m -
Southern Water THORNHAM SSO - 115369 Chichester Hbr Via Little Deep 49 1,047h 34m -
Southern Water BOSHAM SSO - 115735 Chichester Harbour Channel 45 921h 25m -
Southern Water CHICHESTER WTW 2 SSO - 115401 Chichester Harbour 42 898h 17m -
Southern Water TANGMERE SSO - 115777 Aldingbourne Rife 39 845h 25m -
Southern Water THORNHAM INLET CEO - 115371 Chichester Hbr Via Little Deep 40 769h 30m -
Southern Water SIDLESHAM SSO - 115807 Broad Rife 39 743h 17m -
Southern Water Unknown Unknown 44 417h 1m -
Southern Water PRIORS LEAZE LANE NUTBOURNE CSO - 111267 Ham Brook 28 412h 1m -
Southern Water TAYLORS LANE BOSHAM PUMPED SSO - 116066 Chichester Harbour 23 223h 56m -
Southern Water OLD PORTSMOUTH ROAD CSO - 111371 Chichester Harbour 20 204h 54m -
Southern Water SUMMER LANE PAGHAM SSO - 115443 Pagham Rife 10 167h 15m -
Southern Water MAIN ROAD HUNSTON CEO - 108280 Bremere Rife 15 155h 53m -
Southern Water CHIDHAM CEO - 108205 To Chichester Harbour 11 101h 13m -
Southern Water OUTSIDE 83 EAST BEACH SELSEY CEO - 115286 English Channel 10 66h 15m -
Southern Water PAGHAM ROAD NORTH MUNDHAM CEO - 108291 Pagham Rife 24 26h 14m -
Southern Water CHICHESTER ROAD BOGNOR CSO - 103301 Bartons Lane Ald 3 19h 58m -
Southern Water EAST BEACH ROAD SELSEY CSO - 108220 English Channel 3 8h 43m -
Southern Water PAGHAM ROAD NORTH MUNDHAM CEO - 108291 Pagham Rife 0 0h -
Southern Water MAIN ROAD HUNSTON CEO - 108280 Bremere Rife 0 0h -
Southern Water SCHOOL LANE NUTBOURNE CEO - 108299 Ham Brook 0 0h -
Southern Water SIDLESHAM SSO - 115807 Broad Rife 0 0h -
Southern Water CHICHESTER ROAD BOGNOR CSO - 103301 Bartons Lane Ald 0 0h -
Southern Water SUMMER LANE PAGHAM SSO - 115443 Pagham Rife 0 0h -
Southern Water Unknown Unknown 0 0h -
Southern Water CHICHESTER WTW 1 SSO - 115402 Chichester Harbour 0 0h -
Southern Water SCHOOL LANE NUTBOURNE CEO - 108299 Ham Brook 0 0h -
Southern Water OLD PORTSMOUTH ROAD CSO - 111371 Chichester Harbour 0 0h -
Southern Water CHIDHAM CEO - 108205 To Chichester Harbour 0 0h -
Southern Water THORNHAM SSO - 115369 Chichester Hbr Via Little Deep 0 0h -
Southern Water OUTSIDE 83 EAST BEACH SELSEY CEO - 115286 English Channel 0 0h -
Southern Water LAVANT NO.1 SSO - 115745 River Lavant 0 0h -
Southern Water BOSHAM SSO - 115735 Chichester Harbour Channel 0 0h -
Southern Water CHICHESTER WTW 2 SSO - 115401 Chichester Harbour 0 0h -
Southern Water PRIORS LEAZE LANE NUTBOURNE CSO - 111267 Ham Brook 0 0h -
Southern Water TANGMERE SSO - 115777 Aldingbourne Rife 0 0h -
Southern Water THORNHAM INLET CEO - 115371 Chichester Hbr Via Little Deep 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

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.