North Cornwall - Live Sewage

Polluted by sewage 15,177 hours this year - That's 1.76 years so far...

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in North Cornwall 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 North Cornwall

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for North Cornwall, 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	SWW0045	104	1,832 h 6m	76.33
South West Water	SWW0087	92	1,741 h 54m	72.54
South West Water	SWW0342	91	1,624 h 48m	67.67
South West Water	SWW0920	77	1,000 h 28m	41.67
South West Water	SWW0612	64	765 h 9m	31.88
South West Water	SWW0086	35	668 h 52m	27.83
South West Water	SWW0662	37	579 h 5m	24.12
South West Water	SWW1109	37	530 h 15m	22.08
South West Water	SWW1229	52	521 h 21m	21.71
South West Water	SWW1118	50	490 h 5m	20.42
South West Water	SWW1073	33	486 h 4m	20.25
South West Water	SWW0814	33	473 h 18m	19.71
South West Water	SWW0392	60	445 h 25m	18.54
South West Water	SWW0795	24	367 h 33m	15.29
South West Water	SWW0810	83	293 h 5m	12.21
South West Water	SWW0669	61	290 h 30m	12.08
South West Water	SWW1373	18	282 h 22m	11.75
South West Water	SWW0805	71	228 h 40m	9.5
South West Water	SWW0543	49	221 h 27m	9.21
South West Water	SWW1139	49	198 h 48m	8.25
South West Water	SWW1341	22	171 h 58m	7.12
South West Water	SWW0194	25	163 h 6m	6.79
South West Water	SWW0701	24	144 h 42m	6
South West Water	SWW1023	17	133 h 25m	5.54
South West Water	SWW1340	34	128 h 54m	5.33
South West Water	SWW0078	10	111 h 23m	4.62
South West Water	SWW1232	13	102 h 35m	4.25
South West Water	SWW0391	9	88 h 54m	3.67
South West Water	SWW1238	7	82 h 3m	3.42
South West Water	SWW1283	18	79 h 39m	3.29
South West Water	SWW1108	24	70 h 7m	2.92
South West Water	SWW1122	33	68 h 47m	2.83
South West Water	SWW0221	10	67 h 18m	2.79
South West Water	SWW1093	7	62 h 1m	2.58
South West Water	SWW1269	11	60 h 56m	2.5
South West Water	SWW1268	10	60 h 53m	2.5
South West Water	SWW0127	10	52 h 36m	2.17
South West Water	SWW1242	4	50 h 34m	2.08
South West Water	SWW0847	5	47 h 36m	1.96
South West Water	SWW1202	9	47 h 16m	1.96
South West Water	SWW0861	12	47 h 11m	1.96
South West Water	SWW0362	31	37 h 42m	1.54
South West Water	SWW1237	4	32 h 41m	1.33
South West Water	SWW0111	19	32 h 13m	1.33
South West Water	SWW0599	8	31 h 18m	1.29
South West Water	SWW1111	12	29 h 57m	1.21
South West Water	SWW1098	10	20 h 12m	0.83
South West Water	SWW0712	3	20 h 5m	0.83
South West Water	SWW0798	1	14 h 27m	0.58
South West Water	SWW1135	7	11 h 29m	0.46
South West Water	SWW0845	20	9 h 21m	0.38
South West Water	SWW0923	9	6 h 47m	0.25
South West Water	SWW0928	4	6 h 18m	0.25
South West Water	SWW0341	8	6 h 7m	0.25
South West Water	SWW1194	5	5 h 59m	0.21
South West Water	SWW0640	6	5 h 43m	0.21
South West Water	SWW1150	2	4 h 43m	0.17
South West Water	SWW0922	4	3 h 55m	0.12
South West Water	SWW0651	3	3 h 4m	0.12
South West Water	SWW1123	4	3 h	0.12
South West Water	SWW0784	8	1 h 35m	0.04
South West Water	SWW0205	1	1 h 25m	0.04
South West Water	SWW1088	2	1 h 25m	0.04
South West Water	SWW0793	1	0 h 57m	0
South West Water	SWW0839	1	0 h 40m	0
South West Water	SWW0659	1	0 h 30m	0
South West Water	SWW1271	2	0 h 29m	0
South West Water	SWW0544	2	0 h 27m	0
South West Water	SWW0390	1	0 h 22m	0
South West Water	SWW0643	3	0 h 20m	0
South West Water	SWW0123	1	0 h 15m	0
South West Water	SWW1359	2	0 h 12m	0
South West Water	SWW0924	1	0 h 2m	0
South West Water	SWW1377	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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North Cornwall - Live Sewage Polluted by sewage 15,177 hours this year - That's 1.76 years so far...

North Cornwall - Live Sewage