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Polluted by sewage 856 times in 2025 lasting 11,280 hours - That's 1.31 years!
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Donate NowHere are all the reported sewage overflow totals for Salisbury 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year
| Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
|---|---|---|---|---|---|
| Wessex Water | River Bourne | HURDCOTT WASTEWATER TREATMENT WORKS | 167 | 3,118 | 100 |
| Wessex Water | River Bourne | ALLINGTON OLD INN PS | 85 | 1,977 | 100 |
| Wessex Water | River Nadder | BARFORD ST MARTIN WRC | 81 | 1,550 | 99.9 |
| Wessex Water | Fovant Brook | FOVANT WATER RECYCLING CENTRE | 81 | 1,252 | 100 |
| Southern Water | Groundwater/River Dun | EAST GRIMSTEAD WWTW | 64 | 973 | 99.6 |
| Wessex Water | River Avon | SALISBURY (PETERSFINGER) | 51 | 840 | 99.8 |
| Southern Water | River Blackwater | REDLYNCH WWTW | 35 | 644 | 100 |
| Wessex Water | Hampshire Avon, River | DOWNTON SEWAGE TREATMENT WORKS | 31 | 309 | 99.9 |
| Wessex Water | River Wylye Via A Reed Bed | HANGING LANGFORD PUMPING STATION | 84 | 242 | 100 |
| Wessex Water | Ditch | CHILMARK PUMPING STATION | 7 | 100 | 100 |
| Wessex Water | Groundwater Via Infilt System | HINDON WASTEWATER TREATMENT WORKS | 74 | 96 | 99.6 |
| Wessex Water | River Nadder Via Sws | TISBURY COMBINED SEWER OVERFLOW | 36 | 71 | 100 |
| Wessex Water | River Nadder | BARFORD ST MARTIN PUMPING STATION | 4 | 41 | 100 |
| Wessex Water | River Sem | SEMLEY WATER RECYCLING CENTRE | 17 | 39 | 99.8 |
| Wessex Water | River Avon Via Sw Sewer | HIGH STREET SSO | 7 | 10 | 100 |
| Wessex Water | River Avon Via Sws | 37 ENDLESS STREET CSO | 22 | 9 | 99.9 |
| Wessex Water | River Nadder | HINDON PUMPING STATION | 4 | 1 | 100 |
| Wessex Water | River Bourne | HURDCOTT PS | 1 | 1 | 99.9 |
| Wessex Water | River Avon Via Sws | COLLEGE STREET CSO | 4 | 0 | 100 |
| Wessex Water | River Bourne | IDMISTON PUMPING STATION | 1 | 0 | 100 |
| Wessex Water | River Avon | CHURCHILL GDNS SSO | 0 | 0 | 100 |
| Wessex Water | River Avon | HOME FARM SEWAGE PUMPING STATION | 0 | 0 | 100 |
| Southern Water | River Blackwater | WHITEPARISH WWTW | 0 | 0 | 99.9 |
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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org