Salisbury was polluted by sewage 1,353 times in 2023
lasting 15,734 hours - that's 1.82 years!

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Salisbury in 2023
19 Sites polluted by Southern Water, Wessex Water
1,353 sewage dumps
15,734 h duration
That's 1.82 years! On average 3.7 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Salisbury in 2023. 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 0 of the total 22 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Wessex Water River Bourne HURDCOTT WASTEWATER TREATMENT WORKS 253 3,980 100
Wessex Water River Avon SALISBURY (PETERSFINGER) 102 1,766 100
Southern Water River Blackwater REDLYNCH WWTW 93 1,748 98.6
Wessex Water Fovant Brook FOVANT WATER RECYCLING CENTRE 139 1,707 100
Wessex Water River Nadder BARFORD ST MARTIN WRC 122 1,680 99.9
Wessex Water Hampshire Avon, River DOWNTON SEWAGE TREATMENT WORKS 106 1,231 100
Wessex Water Groundwater Via Infilt System HINDON WASTEWATER TREATMENT WORKS 113 1,017 87.5
Wessex Water River Bourne ALLINGTON OLD INN PS 49 1,004 98.1
Wessex Water River Wylye Via A Reed Bed HANGING LANGFORD PUMPING STATION 170 560 100
Southern Water Groundwater/River Dun EAST GRIMSTEAD WWTW 36 344 100
Wessex Water River Bourne HURDCOTT PS 19 290 98.6
Wessex Water River Nadder BARFORD ST MARTIN PUMPING STATION 11 183 100
Wessex Water River Nadder HINDON PUMPING STATION 14 73 96.1
Wessex Water River Nadder Via Sws TISBURY COMBINED SEWER OVERFLOW 52 68 100
Wessex Water River Avon Via Sw Sewer HIGH STREET SSO 22 29 100
Wessex Water River Avon Via Sws 37 ENDLESS STREET CSO 33 17 100
Wessex Water River Sem SEMLEY WATER RECYCLING CENTRE 15 17 100
Southern Water River Blackwater WHITEPARISH WWTW 3 12 99.9
Wessex Water River Bourne IDMISTON PUMPING STATION 1 0 100
Wessex Water River Avon Via Sws COLLEGE STREET CSO 0 0 100
Wessex Water River Avon CHURCHILL GDNS SSO 0 0 99.9
Wessex Water Ditch CHILMARK PUMPING STATION 0 0 100

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. 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.