South West Wiltshire - Live Sewage

Polluted by sewage 1,152 hours this year so far...

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in South West Wiltshire so far this year. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see report for last year in the other page.

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Constituencies near South West Wiltshire

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for South West Wiltshire, 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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Polluting

Potentially Polluting

Unknown

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

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Totals so far

Company	CSO ID	Overflow Days	Total Duration (hours)	Total Duration (days)
Wessex Water	WSX0657	18	271 h 44m	11.29
Wessex Water	WSX0021	13	156 h 46m	6.5
Wessex Water	WSX0645	13	142 h 8m	5.92
Wessex Water	WSX0963	8	105 h 6m	4.38
Wessex Water	WSX0086	14	100 h 39m	4.17
Wessex Water	WSX0650	13	74 h 16m	3.08
Wessex Water	WSX0861	9	64 h 30m	2.67
Wessex Water	WSX0053	5	49 h 10m	2.04
Wessex Water	WSX1021	5	41 h 33m	1.71
Wessex Water	WSX0448	27	38 h 30m	1.58
Wessex Water	WSX0604	17	35 h 40m	1.46
Wessex Water	WSX0351	30	32 h 45m	1.33
Wessex Water	WSX0080	5	10 h 54m	0.42
Wessex Water	WSX0214	5	7 h 30m	0.29
Wessex Water	WSX0030	6	6 h 56m	0.25
Wessex Water	WSX1014	9	5 h 54m	0.21
Wessex Water	WSX0077	2	3 h 4m	0.12
Wessex Water	WSX0052	2	2 h 30m	0.08
Wessex Water	WSX0878	7	1 h 26m	0.04
Wessex Water	WSX1155	1	0 h 34m	0
Wessex Water	WSX0815	1	0 h 22m	0
Wessex Water	WSX1097	1	0 h 14m	0
Wessex Water	WSX0762	1	0 h 2m	0
Wessex Water	WSX0081	0	0 h	0
Wessex Water	WSX1273	0	0 h	0
Wessex Water	WSX10086	0	0 h	0
Wessex Water	WSX0226	0	0 h	0
Wessex Water	WSX0198	0	0 h	0
Wessex Water	WSX10153	0	0 h	0
Wessex Water	WSX1277	0	0 h	0

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.

Analysing sewage pollution by the Water Industry

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press [at] top-of-the-poops.org

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South West Wiltshire - Live Sewage Polluted by sewage 1,152 hours this year so far...

South West Wiltshire - Live Sewage