Here are the ones that have been overflowing for the longest, without interruption
We are getting more data collated for each of the CSOs... right now we just have the Constituency. Unfortunately, the water companies use different names for the CSOs in their live data than in the annual returns, so it will take a bit of time to link all the data up....
Started 44 minutes ago
Started 36 minutes ago
Started 9 hours ago
Started 35 minutes ago
Started 32 minutes ago
Started 40 minutes ago
Started 3 weeks ago
Started 8 hours ago
Started 2 days ago
We have live data for South West Water so we can track what happens every day - given that overflows are supposed to happen on an 'exceptional' basis only - does the chart indicate that?
The red line indicates the number of CSOs that overflowed for at least 30mins, the grey, the number of CSOs that were offline for at least 30mins, and the blue line is the total number of CSOs that we can get information for.
There is daily updated information on all constituencies covered by South West Water
How does each water company compare? These are the totals by company for each. The totals are really high, counting things in hours doesn't make it very easy to think about. Here we show how many years of continuous sewage dumps happened in a single year, by water company.
It isn't like there are just a few outliers... the problem exists across the entire estate of water assets. Here we show a 'cumulative frequency diagram' - where the number of CSOs that dumped sewage for a time, or longer, is shown. You can see that many CSOs dumped sewage into a river for months and months.
South West Water is highlighted in the plot below
Honiton and Sidmouth polluted for 8,772 hours, into Salcombe Regis Stream
366 incidents
That's 1.02 years!
On average 1 times a day
Central Devon polluted for 8,431 hours, into Wray Brook
385 incidents
That's 11.71 months.
On average 1.1 times a day
Honiton and Sidmouth polluted for 6,198 hours, into Weaver
283 incidents
That's 8.61 months.
5.4 times a week, on average
Honiton and Sidmouth polluted for 5,372 hours, into Payhembury Stream
279 incidents
That's 7.46 months.
5.4 times a week, on average
Honiton and Sidmouth polluted for 4,898 hours, into River Otter
369 incidents
That's 6.8 months.
On average 1 times a day
South East Cornwall polluted for 4,637 hours, into River Tamar
217 incidents
That's 6.44 months.
4.2 times a week, on average
That's 3.5 years!
2,813 incidents
On average 7.7 times a day
That's 2.46 years!
2,001 incidents
On average 5.5 times a day
That's 1.4 years!
694 incidents
On average 1.9 times a day
That's 1.28 years!
1,025 incidents
On average 2.8 times a day
That's 1.26 years!
1,143 incidents
On average 3.1 times a day
That's 1.15 years!
564 incidents
On average 1.5 times a day
That's 1.07 years!
1,333 incidents
On average 3.7 times a day
That's 10.86 months.
987 incidents
On average 2.7 times a day
That's 6.36 months.
442 incidents
On average 1.2 times a day
That's 4.94 months.
226 incidents
4.3 times a week, on average
That's 3.71 months.
142 incidents
2.7 times a week, on average
That's 3.17 months.
228 incidents
4.4 times a week, on average
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.