Top of the Poops | Constituency Sewage Map | Melksham and Devizes

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Live data for Melksham and Devizes in 2026

So far this year (as of 12 Nov 2026, 22:01) there has been 9,703 hours of sewage overflows, from 130 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 1.12 years!

Sewage without rain in Melksham and Devizes

On 6 occasions since December 2024, no rain fell anywhere in Melksham and Devizes for days — and its CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s discharged anyway.

7 Mar - 9 Mar 2025 2 at once · 59h 25 Dec - 26 Dec 2025 2 at once · 25h 4 Mar - 5 Mar 2025 2 at once · 9h

Totals for Melksham and Devizes in 2025

54 Sites polluted by Wessex Water

1,116 sewage dumps

9,796 hours duration

Sewage pollution map of Melksham and Devizes: 1,116 spills in 2025, lasting 9,796 hours, by Wessex Water

That's 1.13 years. On average 3.1 times a day

Change Over Time

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Your local MP is Brian Mathew (Liberal Democrat) - Find out more about their interests, donors, and voting at They Work For You

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Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Wessex Water	River Avon	SPANIEL'S BRIDGE PUMPING STATION	52	1,077	99.9
Wessex Water	River Marden	BROADS GREEN PS	54	1,057	100
Wessex Water	River Avon	MELKSHAM WWTW	71	803	100
Wessex Water	Seend Hill Stream	SEEND WASTEWATER TREATMENT WORKS	33	601	99.8
Wessex Water	Lam Brook Stream	CHURCH LANE FARM PS	40	523	100
Wessex Water	Clackers Brook	SCOUT HUT CSO	56	512	99.9
Wessex Water	River Frome	WESTWOOD WATER RECYCLING CENTRE	30	421	99.2
Wessex Water	By Brook	BOX WASTEWATER TREATMENT WORKS	45	413	96.6
Wessex Water	Berryfield Stream	BOWERHILL WASTEWATER TREATMENT WORK	45	413	100
Wessex Water	River Marden	ROUGH LEAZE	23	395	99.9
Wessex Water	Bristol Avon	FRESHFORD WRC	32	360	99.9
Wessex Water	South Brook	SHAW C OF E SCHOOL CSO	40	278	100
Wessex Water	River Avon	THE STAR PUMPING STATION	48	253	100
Wessex Water	Summerham Brook	TOWNSEND PS	19	237	100
Wessex Water	Semington Brook	LAVINGTON (WOODBRIDGE) WWTW	15	187	100
Wessex Water	Semington Brook	SEMINGTON BROOK PUMPING STATION	13	183	99.8
Wessex Water	Semington Brook	COULSTON PUMPING STATION	18	173	100
Wessex Water	Unknown	THE GREEN PUMPING STATION	14	169	100
Wessex Water	By Brook	MILL LANE PUMPING STATION	40	165	100
Wessex Water	Chalfield Brook	SOUTH WRAXALL STW	12	164	100
Wessex Water	Semington Brook	MILL ROAD PUMPING STATION	12	126	100
Wessex Water	Etchilhampton Water	HORTON FARM PUMPING STATION	75	113	100
Wessex Water	Semmington Brook	WICKLEASE PUMPING STATION	8	110	99.8
Wessex Water	Semington Brook	URCHFONT WASTEWATER TREATMENT WORKS	13	98	100
Wessex Water	River Avon	BRADFORD ON AVON WWTW	10	97	100
Wessex Water	River Avon	SEMINGTON ROAD CSO	22	81	100
Wessex Water	Waylen Brook	DEVIZES WATER RECYCLING CENTRE	10	79	99.9
Wessex Water	Unknown	CURTIS ORCHARD PUMPING STATION	7	77	100
Wessex Water	Semington Brook	GANGBRIDGE S P STN	8	59	100
Wessex Water	River Avon	MARKET STREET CSO	47	53	100
Wessex Water	River Avon	BARTON FARM CSO	8	53	95.8
Wessex Water	By Brook	RECREATION GROUND 1 CSO	29	50	97.4
Wessex Water	River Avon	WOOLLEY STREET CSO	18	50	94.9
Wessex Water	Unknown	SEMINGTON ROAD PUMPING STATION	6	49	100
Wessex Water	River Avon	SILVER STREET CSO	8	48	84.9
Wessex Water	Semington Brook	GREAT HINTON PUMPING STATION	6	48	100
Wessex Water	River Marden	QUEMERFORD BRIDGE CSO	12	45	96.7
Wessex Water	Semington Brook	POTTERNE WRC	8	25	100
Wessex Water	By Brook	RECREATION GROUND 2 CSO	43	25	100
Wessex Water	River Avon	WINSLEY WASTEWATER TREATMENT WORKS	6	20	99.9
Wessex Water	By Brook	COLERNE WATER RECYLCING CENTRE	4	15	99.9
Wessex Water	Unknown	SEMINGTON ROUNDABOUT	2	12	100
Wessex Water	Summerham Brook	MILL LANE COMBINED SEWER OVERFLOW	2	11	100
Wessex Water	River Avon	POUND LANE CSO	4	10	100
Wessex Water	Erlestoke Stream	ERLESTOKE WATER RECYCLING CENTRE	2	6	98.7
Wessex Water	Semington Brook	KEEVIL PUMPING STATION	1	5	99.8
Wessex Water	Summerham Brook	TOWERVIEW PUMPING STATION	6	5	100
Wessex Water	Summerham Brook	ROUNDWAY HOSPITAL CSO	6	5	100
Wessex Water	Easterton Brook	MANOR HOUSE COMBINED SEWER OVERFLOW	2	4	100
Wessex Water	Summerham Brook	ROWDE WASTEWATER TREATMENT WORKS	1	3	100
Wessex Water	Semington Brook Via Sws	RUSSELL MILL LANE CSO	11	2	100
Wessex Water	Poulshot Stream	VALLEY SEWER CSO	4	2	100
Wessex Water	Semington Brook Via Sws	CHURCHILL ARMS COMBINED SEWER OF	8	1	100
Wessex Water	Summerham Brook	DUNKIRK HILL PUMPING STATION	7	1	100
Wessex Water	Summerham Brook	BELL HILL SPS	0	0	100
Wessex Water	Worton Stream	POTTERNEWICK PUMPING STATION	0	0	100

Melksham and Devizes

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Live data for Melksham and Devizes in 2026

Sewage without rain in Melksham and Devizes

Totals for Melksham and Devizes in 2025

54 Sites polluted by Wessex Water

Change Over Time

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