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....
Brighton Kemptown and Peacehaven
Started 2 months ago
Started 4 hours ago
Started 4 hours ago
Started 4 hours ago
Started 2 hours ago
Started 1 hour ago
Started 4 months ago
Started 4 days ago
Started 1 hour ago
We have live data for Southern 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 Southern 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.
Southern Water is highlighted in the plot below
Chichester polluted for 6,829 hours, into River Lavant
287 incidents
That's 9.48 months.
5.5 times a week, on average
Romsey and Southampton North polluted for 5,481 hours, into River Test
252 incidents
That's 7.61 months.
4.8 times a week, on average
Lewes polluted for 4,824 hours, into Tidal River Ouse
259 incidents
That's 6.7 months.
5 times a week, on average
Sussex Weald polluted for 4,130 hours, into Shovelstrode Stream
193 incidents
That's 5.74 months.
3.7 times a week, on average
Tunbridge Wells polluted for 4,084 hours, into Hexden Channel
213 incidents
That's 5.67 months.
4.1 times a week, on average
Isle of Wight East polluted for 4,081 hours, into English Channel
283 incidents
That's 5.67 months.
5.4 times a week, on average
That's 1.64 years!
1,141 incidents
On average 3.1 times a day
That's 1.6 years!
1,986 incidents
On average 5.4 times a day
That's 1.2 years!
1,261 incidents
On average 3.5 times a day
That's 1.11 years!
556 incidents
On average 1.5 times a day
That's 10.38 months.
417 incidents
On average 1.1 times a day
That's 9.01 months.
426 incidents
On average 1.2 times a day
That's 7.1 months.
450 incidents
On average 1.2 times a day
That's 5.67 months.
283 incidents
5.4 times a week, on average
That's 5.64 months.
226 incidents
4.3 times a week, on average
That's 4.25 months.
510 incidents
On average 1.4 times a day
That's 3.51 months.
128 incidents
2.5 times a week, on average
That's 3.22 months.
194 incidents
3.7 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.
Get in touch if you have queries or want to discuss our data.
press [at] top-of-the-poops.org
