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Chippenham was polluted by sewage 1,099 times in 2023
lasting 10,725 hours - that's 1.24 years!

© OpenStreetMap contributors
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 Chippenham in 2023
25 Sites polluted by Wessex Water
1,099 sewage dumps
10,725 h duration
That's 1.24 years! On average 3 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Chippenham 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 28 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 Abberd Brook THE PONDS PS 133 2,700 99.9
Wessex Water Bristol Avon LACOCK WATER RECYCLING CENTRE 92 1,536 100
Wessex Water River Avon CHIPPENHAM WATER RECYCLING CENTRE 84 1,219 97.15
Wessex Water Springs Watercourse RAF LYNEHAM WWTW 60 1,060 100
Wessex Water River Marden CALNE WASTEWATER TREATMENT WORKS 114 1,030 99.85
Wessex Water Hancock'S Water WOOTTON BASSETT WWTW 56 665 100
Wessex Water Hardenhuish Brook GASTON ROAD CSO 82 458 100
Wessex Water Cowage Brook, TOCKENHAM 77 445 98.7
Wessex Water Rivers Brook COMPTON BASSETT WWTW 30 393 100
Wessex Water River Avon WESTMEAD PUMPING STATION 21 300 99.9
Wessex Water Unknown MOSSES MILL CSO 2 50 222 99.9
Wessex Water River Avon CSO O/S 29 HIGH STREET 69 148 100
Wessex Water Hancock'S Water WOOTTON BASSETT CSO 35 125 99.7
Wessex Water Unknown BRISTOL ROAD CSO 63 93 99.5
Wessex Water River Avon Via Sws LONG CLOSE CSO 42 77 100
Wessex Water River Marden PATFORD STREET CSO 25 76 94.2
Wessex Water River Avon MONKTON PARK OFFICES CSO 16 75 99.8
Wessex Water Byde Mill Brook NETHERCOTE HILL PUMPING STATION 12 55 100
Wessex Water Westbury Park W/C Via Sws NEW ROAD COMBINED SEWER OVERFLOW 3 15 99.1
Wessex Water River Avon WOOD LANE CSO 7 13 99.8
Wessex Water River Marden THE STRAND CSO 22 9 99.8
Wessex Water Unknown PATFORD ST/BANK OF RIVER MARDEN CSO 2 1 99.8
Wessex Water River Avon CHARTER ROAD CSO 1 0 94.8
Wessex Water River Marden Via Sws MARKET HILL CSO 2 0 99.8
Wessex Water River Marden Via Sws WOOD STREET COMBINED SEWER OVERFLOW 1 0 99.8
Wessex Water Unknown MOSSES MILL CSO 1 0 0 99.7
Wessex Water River Avon MARY STREET COMBINED SEWER OVERFLOW 0 0 99.5
Wessex Water Unknown DALLAS ROAD CSO 0 0 99.4

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.