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March for Clean Water

Melksham and Devizes was polluted by sewage 2,169 times in 2023
lasting 25,826 hours - that's 2.99 years!

Select the constituency from the drop-down

Constituency

✔ means we have experimental daily data since 2023

Totals for Melksham and Devizes in 2023

52 Sites polluted by Wessex Water

2,169 sewage dumps
25,826 h duration

That's 2.99 years! On average 5.9 times a day

Change Over Time

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Constituencies near Melksham and Devizes

Waterways in Melksham and Devizes

Pollution Summary 2023

Here are all the reported sewage overflow totals for Melksham and 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 0 of the total 56 CSO locations had reporting enabled for less than half the year, of which 0 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
Wessex Water	River Marden	BROADS GREEN PS	109	2,158	100
Wessex Water	River Avon	MELKSHAM WWTW	115	1,723	99.65
Wessex Water	By Brook	BOX WASTEWATER TREATMENT WORKS	96	1,619	98.5
Wessex Water	Seend Hill Stream	SEEND WASTEWATER TREATMENT WORKS	73	1,324	99.1
Wessex Water	Lam Brook Stream	CHURCH LANE FARM PS	83	1,081	97
Wessex Water	Clackers Brook	SCOUT HUT CSO	83	973	99.9
Wessex Water	Berryfield Stream	BOWERHILL WASTEWATER TREATMENT WORK	84	889	99.95
Wessex Water	Bristol Avon	FRESHFORD WRC	57	753	100
Wessex Water	River Marden	ROUGH LEAZE	34	693	99.9
Wessex Water	South Brook	SHAW C OF E SCHOOL CSO	68	591	100
Wessex Water	River Avon	THE STAR PUMPING STATION	70	530	100
Wessex Water	Summerham Brook	TOWNSEND PS	39	521	100
Wessex Water	River Frome	WESTWOOD WATER RECYCLING CENTRE	33	483	100
Wessex Water	Chalfield Brook	SOUTH WRAXALL STW	32	436	99.9
Wessex Water	Unknown	THE GREEN PUMPING STATION	25	274	100
Wessex Water	By Brook	MILL LANE PUMPING STATION	56	273	100
Wessex Water	Semmington Brook	WICKLEASE PUMPING STATION	21	265	99.6
Wessex Water	River Marden	QUEMERFORD BRIDGE CSO	46	262	99.6
Wessex Water	Semington Brook	SEMINGTON BROOK PUMPING STATION	23	259	100
Wessex Water	River Avon	POUND LANE CSO	58	237	99.9
Wessex Water	By Brook	RECREATION GROUND 1 CSO	54	222	99.7
Wessex Water	Semington Brook	COULSTON PUMPING STATION	28	196	99.8
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	WINSLEY WASTEWATER TREATMENT WORKS	22	173	100
Wessex Water	Unknown	SEMINGTON ROAD PUMPING STATION	18	160	100
Wessex Water	Semington Brook	LAVINGTON (WOODBRIDGE) WWTW	24	139	100
Wessex Water	River Avon	SEMINGTON ROAD CSO	33	136	100
Wessex Water	River Avon	SILVER STREET CSO	19	120	98.9
Wessex Water	Semington Brook	URCHFONT WASTEWATER TREATMENT WORKS	16	117	99.7
Wessex Water	River Avon	BRADFORD ON AVON WWTW	20	115	99.85
Wessex Water	Summerham Brook	TOWERVIEW PUMPING STATION	41	113	99.5
Wessex Water	Semington Brook	GANGBRIDGE S P STN	16	101	100
Wessex Water	Semington Brook	GREAT HINTON PUMPING STATION	13	84	57.4
Wessex Water	Unknown	CURTIS ORCHARD PUMPING STATION	11	79	100
Wessex Water	Summerham Brook	ROWDE WASTEWATER TREATMENT WORKS	8	73	99.8
Wessex Water	River Avon	MARKET STREET CSO	56	70	99.9
Wessex Water	Semington Brook	KEEVIL PUMPING STATION	7	66	100
Wessex Water	River Avon	BARTON FARM CSO	8	64	100
Wessex Water	River Avon	WOOLLEY STREET CSO	28	63	99.5
Wessex Water	By Brook	COLERNE WATER RECYLCING CENTRE	11	45	100
Wessex Water	Semington Brook	POTTERNE WRC	21	42	99.9
Wessex Water	By Brook	RECREATION GROUND 2 CSO	55	39	99.7
Wessex Water	Erlestoke Stream	ERLESTOKE WATER RECYCLING CENTRE	8	18	99.8
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	Poulshot Stream	VALLEY SEWER CSO	1	0	94.8
Wessex Water	Summerham Brook	BELL HILL SPS	0	0	100
Wessex Water	Worton Stream	POTTERNEWICK PUMPING STATION	0	0	100
Wessex Water	Summerham Brook	MILL LANE COMBINED SEWER OVERFLOW	0	0	97.1
Wessex Water	Unknown	SEMINGTON ROUNDABOUT	0	0	100

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

With generous support from:

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