Polluted by sewage 3,483 hours in 2025
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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Gosport, 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 Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| Southern Water | LEES LANE GOSPORT CEO - 108828 | Portsmouth Harbour | 90 | 2,122 h 40m | 88.42 |
| Southern Water | QUEENS RD LEE ON THE SOLENT CEO - 110196 | Solent | 18 | 410 h 38m | 17.08 |
| Southern Water | APPLEY PARK RYDE TRANSFER CEO - 108941 | Solent | 30 | 342 h 27m | 14.25 |
| Southern Water | PEEL COMMON SSO - 115425 | Solent | 18 | 259 h 14m | 10.79 |
| Southern Water | APPLEY PARK RYDE TRANSFER CEO - 108941 | Solent | 14 | 175 h 44m | 7.29 |
| Southern Water | GROVE ROAD GOSPORT CEO - 108833 | Portsmouth Harbour | 4 | 23 h 46m | 0.96 |
| Southern Water | ALVER ROAD GOSPORT CEO - 108838 | Workhouse Lake | 3 | 23 h 38m | 0.96 |
| Southern Water | FAREHAM ROAD GOSPORT OUTSIDE 359 CSO - 108505 | Portsmouth Harbour | 9 | 19 h 29m | 0.79 |
| Southern Water | SALTERNS ROAD HILL HEAD CEO - 108441 | Solent | 4 | 19 h 13m | 0.79 |
| Southern Water | FAREHAM ROAD GOSPORT OUTSIDE 359 CSO - 108505 | Portsmouth Harbour | 7 | 17 h 13m | 0.71 |
| Southern Water | NEWGATE LANE PEEL COMMON CEO - 108849 | To River Alver | 1 | 14 h 56m | 0.58 |
| Southern Water | FAREHAM ROAD GOSPORT OUTSIDE 68 CSO - 108847 | Frater Lake | 3 | 11 h 40m | 0.46 |
| Southern Water | FOSTER ROAD GOSPORT CEO - 110703 | Workhouse Lake, Portsmouth Hbr | 4 | 8 h 27m | 0.33 |
| Southern Water | GREEN CRESCENT GOSPORT CSO - 108436 | Saline Estuary | 1 | 7 h 38m | 0.29 |
| Southern Water | SALTERNS ROAD HILL HEAD CEO - 108441 | Solent | 2 | 6 h 59m | 0.25 |
| Southern Water | BURY ROAD GOSPORT CEO - 108846 | Workhouse Lake | 3 | 6 h 10m | 0.25 |
| Southern Water | BREWERS LANE GOSPORT CSO - 108840 | Frater Lake, Portsmouth Hbr | 1 | 4 h 20m | 0.17 |
| Southern Water | QUEENS RD LEE ON THE SOLENT CEO - 110196 | Solent | 2 | 2 h 57m | 0.08 |
| Southern Water | SALTERNS ROAD STUBBINGTON CSO - 108480 | Solent | 1 | 2 h 22m | 0.08 |
| Southern Water | NEWGATE LANE PEEL COMMON CEO - 108849 | To River Alver | 1 | 1 h 36m | 0.04 |
| Southern Water | CAMBRIDGE ROAD GOSPORT CEO - 108462 | Portsmouth Harbour | 2 | 1 h 28m | 0.04 |
| Southern Water | VILLAGE ROAD ALVERSTOKE CEO - 108824 | Stoke Lake | 1 | 0 h 57m | 0 |
| Southern Water | HARDWAY CEO - 108830 | Portsmouth Harbour | 1 | 0 h | 0 |
| Southern Water | FAREHAM ROAD GOSPORT OUTSIDE 68 CSO - 108847 | Frater Lake | 0 | 0 h | 0 |
| Southern Water | FOSTER ROAD GOSPORT CEO - 110703 | Workhouse Lake, Portsmouth Hbr | 0 | 0 h | 0 |
| Southern Water | SALTERNS ROAD STUBBINGTON CSO - 108480 | Solent | 0 | 0 h | 0 |
| Southern Water | BURY ROAD GOSPORT CEO - 108846 | Workhouse Lake | 0 | 0 h | 0 |
| Southern Water | HARDWAY CEO - 108830 | Portsmouth Harbour | 0 | 0 h | 0 |
| Southern Water | CAMBRIDGE ROAD GOSPORT CEO - 108462 | Portsmouth Harbour | 0 | 0 h | 0 |
| Southern Water | VILLAGE ROAD ALVERSTOKE CEO - 108824 | Stoke Lake | 0 | 0 h | 0 |
| Southern Water | LAKESIDE LEE ON THE SOLENT CEO - 108829 | Solent | 0 | 0 h | 0 |
| Southern Water | Unknown | Unknown | 0 | 0 h | 0 |
| Southern Water | GROVE ROAD GOSPORT CEO - 108833 | Portsmouth Harbour | 0 | 0 h | 0 |
| Southern Water | PEEL COMMON SSO - 115425 | Solent | 0 | 0 h | 0 |
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.