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Polluted by sewage 914 times in 2024 lasting 15,864 hours - That's 1.84 years!
So far this year (as of Apr 30, 2025, 9:00 AM) there has been 5,310 hours of sewage overflows - that's 0.61 years!
Your local MP is Jessica Brown-Fuller (Liberal Democrat) - Find out more about their interests, donors, and voting at They Work For You
We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Chichester, 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.
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Donate NowHere are all the reported sewage overflow totals for Chichester 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 all the declared CSOs appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Southern Water | River Lavant | LAVANT WWTW | 287 | 6,829 | 96.5 |
| Southern Water | Aldingbourne Rife | TANGMERE WASTEWATER TREATMENT WORKS | 128 | 2,527 | 99.9 |
| Southern Water | Chichester Harbour | CHICHESTER WWTW | 114 | 1,811 | 99.1 |
| Southern Water | Pagham Rife | PAGHAM WASTEWATER TREATMENT WORKS | 72 | 1,194 | 97.5 |
| Southern Water | Broad Rife | SIDLESHAM WWTW | 57 | 789 | 99.9 |
| Southern Water | Chichester Harbour Channel | BOSHAM WWTW | 65 | 742 | 100 |
| Southern Water | Chichester Hbr Via Little Deep | THORNHAM WWTW | 63 | 681 | 100 |
| Southern Water | Ham Brook | CSO BREAKERS YARD NUTBOURNE | 36 | 412 | 99.8 |
| Southern Water | Pagham Rife | NORTH MUNDHAM WPS (PAGHAM ROAD) | 29 | 341 | 100 |
| Southern Water | Chichester Harbour | TAYLORS LANE BOSHAM, WWPS | 22 | 193 | 99.9 |
| Southern Water | Chichester Harbour | MAIN ROAD FISHBOURNE CSO | 19 | 178 | 100 |
| Southern Water | To Chichester Harbour | CHIDHAM LANE SPS CHIDHAM | 12 | 85 | 100 |
| Southern Water | Bremere Rife | MAIN ROAD HUNSTON CEO | 9 | 74 | 100 |
| Southern Water | Ham Brook | SCHOOL LANE PS | 1 | 1 | 99.9 |
| Southern Water | River Ems | LUMLEY ROAD PUMPING STATION | 0 | 0 | 100 |
| Southern Water | English Channel | CHURCH ROAD SELSEY CSO | 0 | 0 | 99.1 |
| Southern Water | English Channel | EAST BEACH ROAD SELSEY CSO | 0 | 0 | 50 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org