Plymouth Sutton and Devonport - Live Sewage

Polluted by sewage 4,371 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 Plymouth Sutton and Devonport 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 Plymouth Sutton and Devonport

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Plymouth Sutton and Devonport, 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.

Monitoring Online

Monitoring Offline

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)
South West Water	SWW0214	72	589 h 40m	24.54
South West Water	SWW0196	31	534 h 5m	22.25
South West Water	SWW0195	32	497 h 23m	20.71
South West Water	SWW0193	50	422 h 38m	17.58
South West Water	SWW0389	38	401 h 26m	16.71
South West Water	SWW0356	26	186 h 20m	7.75
South West Water	SWW0033	38	181 h 25m	7.54
South West Water	SWW0357	25	176 h 1m	7.33
South West Water	SWW0385	26	151 h 40m	6.29
South West Water	SWW0051	13	127 h 27m	5.29
South West Water	SWW0429	49	116 h 37m	4.83
South West Water	SWW1037	14	88 h 23m	3.67
South West Water	SWW0895	12	84 h 48m	3.5
South West Water	SWW0666	52	76 h 8m	3.17
South West Water	SWW0981	66	70 h 11m	2.92
South West Water	SWW0211	10	68 h 33m	2.83
South West Water	SWW0883	4	68 h 21m	2.83
South West Water	SWW0207	24	65 h 32m	2.71
South West Water	SWW0788	26	50 h 23m	2.08
South West Water	SWW0941	17	46 h 52m	1.92
South West Water	SWW0072	28	41 h 3m	1.71
South West Water	SWW0291	17	34 h 9m	1.42
South West Water	SWW0667	26	31 h 6m	1.29
South West Water	SWW0834	21	30 h 13m	1.25
South West Water	SWW1320	27	22 h 49m	0.92
South West Water	SWW0857	8	17 h 51m	0.71
South West Water	SWW0746	6	14 h 53m	0.58
South West Water	SWW0009	24	14 h 37m	0.58
South West Water	SWW0865	15	14 h 15m	0.58
South West Water	SWW0632	6	13 h 31m	0.54
South West Water	SWW0010	13	10 h 41m	0.42
South West Water	SWW1014	13	10 h 41m	0.42
South West Water	SWW0030	9	9 h 56m	0.38
South West Water	SWW1233	16	9 h 48m	0.38
South West Water	SWW1011	7	7 h 15m	0.29
South West Water	SWW0387	10	6 h 55m	0.25
South West Water	SWW0071	4	6 h 34m	0.25
South West Water	SWW0035	17	6 h 34m	0.25
South West Water	SWW0816	6	5 h 28m	0.21
South West Water	SWW0332	7	5 h 23m	0.21
South West Water	SWW1035	11	5 h 15m	0.21
South West Water	SWW0398	2	4 h 41m	0.17
South West Water	SWW0523	8	4 h 20m	0.17
South West Water	SWW0754	4	4 h	0.17
South West Water	SWW0601	3	3 h 59m	0.12
South West Water	SWW1264	3	3 h 48m	0.12
South West Water	SWW0210	7	3 h 25m	0.12
South West Water	SWW0884	3	3 h 23m	0.12
South West Water	SWW0642	9	3 h 20m	0.12
South West Water	SWW1036	10	3 h 17m	0.12
South West Water	SWW1293	3	2 h 50m	0.08
South West Water	SWW0027	11	2 h 31m	0.08
South West Water	SWW0028	3	1 h 46m	0.04
South West Water	SWW0023	3	1 h 43m	0.04
South West Water	SWW0303	2	0 h 58m	0
South West Water	SWW0290	3	0 h 51m	0
South West Water	SWW0910	3	0 h 44m	0
South West Water	SWW0405	2	0 h 40m	0
South West Water	SWW0355	1	0 h 34m	0
South West Water	SWW0539	1	0 h 33m	0
South West Water	SWW0778	1	0 h 30m	0
South West Water	SWW0769	1	0 h 14m	0
South West Water	SWW0043	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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Plymouth Sutton and Devonport - Live Sewage Polluted by sewage 4,371 hours this year so far...

Plymouth Sutton and Devonport - Live Sewage