Top of the Poops | Constituency Sewage Map | Chippenham

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Live data for Chippenham in 2026

So far this year (as of 7 Nov 2026, 14:15) there has been 3,350 hours of sewage overflows, from 62 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Sewage without rain in Chippenham

On 3 occasions since December 2024, no rain fell anywhere in Chippenham 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 1 at once · 72h 3 Mar - 5 Mar 2025 1 at once · 72h 27 Mar 2025 1 at once · 0h

Totals for Chippenham in 2025

23 Sites polluted by Wessex Water

458 sewage dumps

3,798 hours duration

Sewage pollution map of Chippenham: 458 spills in 2025, lasting 3,798 hours, by Wessex Water

That's 5.28 months. On average 1.3 times a day

Change Over Time

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Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Wessex Water	Abberd Brook	THE PONDS PS	70	1,501	98.8
Wessex Water	River Avon	CHIPPENHAM WATER RECYCLING CENTRE	40	495	99.95
Wessex Water	Springs Watercourse	RAF LYNEHAM WWTW	24	315	100
Wessex Water	River Marden	CALNE WASTEWATER TREATMENT WORKS	47	299	100
Wessex Water	Hancock'S Water	WOOTTON BASSETT WWTW	24	265	99.9
Wessex Water	Rivers Brook	COMPTON BASSETT WWTW	16	192	100
Wessex Water	Hardenhuish Brook	GASTON ROAD CSO	46	191	100
Wessex Water	Unknown	MOSSES MILL CSO 2	44	146	100
Wessex Water	Unknown	BRISTOL ROAD CSO	53	79	100
Wessex Water	River Avon	WESTMEAD PUMPING STATION	6	66	99.7
Wessex Water	Cowage Brook,	TOCKENHAM	17	53	99.7
Wessex Water	Hancock'S Water	WOOTTON BASSETT CSO	14	50	99.9
Wessex Water	Bristol Avon	LACOCK WATER RECYCLING CENTRE	8	48	100
Wessex Water	River Marden	PATFORD STREET CSO	10	33	93.9
Wessex Water	River Avon	MONKTON PARK OFFICES CSO	6	21	100
Wessex Water	Byde Mill Brook	NETHERCOTE HILL PUMPING STATION	6	21	100
Wessex Water	River Avon Via Sws	LONG CLOSE CSO	6	5	100
Wessex Water	River Marden	THE STRAND CSO	10	4	95.1
Wessex Water	River Avon	CHARTER ROAD CSO	1	3	94.7
Wessex Water	River Avon	WOOD LANE CSO	7	1	100
Wessex Water	Unknown	PATFORD ST/BANK OF RIVER MARDEN CSO	1	0	100
Wessex Water	River Marden Via Sws	WOOD STREET COMBINED SEWER OVERFLOW	1	0	100
Wessex Water	River Avon	MARY STREET COMBINED SEWER OVERFLOW	1	0	100
Wessex Water	Unknown	DALLAS ROAD CSO	0	0	100
Wessex Water	River Marden Via Sws	MARKET HILL CSO	0	0	100
Wessex Water	Unknown	MOSSES MILL CSO 1	0	0	100
Wessex Water	Westbury Park W/C Via Sws	NEW ROAD COMBINED SEWER OVERFLOW	0	0	100

Chippenham

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Live data for Chippenham in 2026

Sewage without rain in Chippenham

Totals for Chippenham in 2025

23 Sites polluted by Wessex Water

Change Over Time

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