Devizes was polluted by sewage 1,175 times in 2023
lasting 15,383 hours - that's 1.78 years!
- but monitoring was disabled in some locations, so could be more

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Constituency

✔ means we have experimental daily data since 2023

Totals for Devizes in 2023

34 Sites polluted by Thames Water, Wessex Water

1,175 sewage dumps
15,383 h duration

That's 1.78 years! On average 3.2 times a day

Change Over Time

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Constituencies near Devizes

Waterways in Devizes

Daily Data Since 2023

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.

Pollution Summary 2023

Here are all the reported sewage overflow totals for Devizes in 2023. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 1 of the total 40 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Wessex Water	River Avon	SPANIEL'S BRIDGE PUMPING STATION	193	4,210	99.9
Wessex Water	Etchilhampton Water	HORTON FARM PUMPING STATION	162	3,627	100
Thames Water	Kennet	MARLBOROUGH WWTW	172	2,383	90
Wessex Water	Seend Hill Stream	SEEND WASTEWATER TREATMENT WORKS	73	1,324	99.1
Wessex Water	River Avon	ALL CANNINGS PS	40	637	100
Wessex Water	Summerham Brook	TOWNSEND PS	39	521	100
Wessex Water	River Avon	NORTH NEWNTON PUMPING STATION	33	478	100
Wessex Water	River Bourne	COLLINGBOURNE DUCIS PUMPING STATION	101	316	100
Thames Water	River Kennet	FYFIELD WASTEWATER TREATMENT WORKS	15	238	84.1
Thames Water	Kennet And Avon Canal	GREAT BEDWYN WWTW	20	236	99.7
Wessex Water	Semington Brook	MILL ROAD PUMPING STATION	22	193	99.8
Wessex Water	Waylen Brook	DEVIZES WATER RECYCLING CENTRE	25	181	99.7
Wessex Water	River Avon	PEWSEY WASTEWATER TREATMENT WORKS	49	171	97.3
Wessex Water	Semington Brook	LAVINGTON (WOODBRIDGE) WWTW	24	139	100
Wessex Water	Semington Brook	URCHFONT WASTEWATER TREATMENT WORKS	16	117	99.7
Wessex Water	Summerham Brook	TOWERVIEW PUMPING STATION	41	113	99.5
Wessex Water	Semington Brook	GANGBRIDGE S P STN	16	101	100
Thames Water	River Dun	EAST GRAFTON STW, EAST GRAFTON, WIL	12	95	97.9
Wessex Water	Summerham Brook	ROWDE WASTEWATER TREATMENT WORKS	8	73	99.8
Wessex Water	Unnamed Watercourse	SMALL STREET PS	8	52	100
Wessex Water	River Avon	HIGH STREET PUMPING STATION	6	49	99.8
Wessex Water	Semington Brook	POTTERNE WRC	21	42	99.9
Wessex Water	River Avon	WILCOT PUMPING STATION	6	27	100
Wessex Water	Erlestoke Stream	ERLESTOKE WATER RECYCLING CENTRE	8	18	99.8
Thames Water	Kennet	CHILTON FOLIAT WWTW	11	6	99.8
Wessex Water	River Avon	PATNEY WEIR PUMPING STATION	3	5	100
Wessex Water	Semington Brook Via Sws	RUSSELL MILL LANE CSO	17	4	93.6
Wessex Water	Summerham Brook	ROUNDWAY HOSPITAL CSO	5	3	88
Wessex Water	Easterton Brook	MANOR HOUSE COMBINED SEWER OVERFLOW	4	2	99.6
Wessex Water	Semington Brook Via Sws	CHURCHILL ARMS COMBINED SEWER OF	14	2	96.9
Wessex Water	Summerham Brook	DUNKIRK HILL PUMPING STATION	4	1	83.2
Wessex Water	River Avon	SWAN PUMPING STATION	4	1	100
Thames Water	Kennet	London Road	2	1	100
Wessex Water	Poulshot Stream	VALLEY SEWER CSO	1	0	94.8
Wessex Water	River Avon	SALISBURY ROAD PUMPING STATION	0	0	100
Thames Water	Shallbourne Stream	Shalbourne	0	0	0
Thames Water	River Kennet	RAMSBURY WASTEWATER TREATMENT WORKS	0	0	98.6
Wessex Water	Worton Stream	POTTERNEWICK PUMPING STATION	0	0	100
Wessex Water	Summerham Brook	BELL HILL SPS	0	0	100
Wessex Water	Summerham Brook	MILL LANE COMBINED SEWER OVERFLOW	0	0	97.1

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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