North Wiltshire was polluted by sewage 2,980 times in 2023
lasting 34,124 hours - that's 3.95 years!

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Constituency

✔ means we have experimental daily data since 2023

Totals for North Wiltshire in 2023

58 Sites polluted by Thames Water, Wessex Water

2,980 sewage dumps
34,124 h duration

That's 3.95 years! On average 8.2 times a day

Change Over Time

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Constituencies near North Wiltshire

Waterways in North Wiltshire

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 North Wiltshire 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 60 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	Abberd Brook	THE PONDS PS	133	2,700	99.9
Wessex Water	Gauze Brook	HULLAVINGTON WWTW	138	2,604	99.95
Wessex Water	River Marden	BROADS GREEN PS	109	2,158	100
Wessex Water	Bristol Avon	SUTTON BENGER WWTW	92	1,683	100
Wessex Water	By Brook	BOX WASTEWATER TREATMENT WORKS	96	1,619	98.5
Thames Water	River Thames	CRICKLADE WWTW	114	1,482	100
Wessex Water	Unnamed Braydon	HANKERTON SEWAGE PUMPING STATION, W	78	1,334	100
Wessex Water	By Brook	LONG DEAN WASTEWATER TREATMENT WORK	76	1,214	99.8
Wessex Water	River Avon	MALMESBURY WWTW	93	1,192	100
Wessex Water	Woodbridge Brook	LEA NORTH PUMPING STATION	86	1,178	100
Wessex Water	Derry Brook	STATION ROAD SEWAGE PUMPING STATION	80	1,144	100
Wessex Water	Springs Watercourse	RAF LYNEHAM WWTW	60	1,060	100
Wessex Water	Charlton Stream	TANNERS BRIDGE PUMPING STATION	70	1,050	100
Wessex Water	River Marden	CALNE WASTEWATER TREATMENT WORKS	114	1,030	99.85
Wessex Water	River Avon	KINGTON LANGLEY PUMPING STATION	68	997	100
Wessex Water	Gauze Brook	MILL LANE COMBINED SEWER OVERFLOW	57	927	96.4
Wessex Water	River Avon	GREAT SOMERFORD WWTW	73	771	100
Wessex Water	River Avon	NOAH'S ARK PUMPING STATION	50	718	100
Wessex Water	Pudding Brook	MANOR COTTAGES PUMPING STATION	100	711	99.9
Wessex Water	Brinkworth Brook	BRINKWORTH WWTW	68	702	99.9
Wessex Water	River Marden	ROUGH LEAZE	34	693	99.9
Wessex Water	Braydon Brook	FLISTERIDGE PS	46	676	99.7
Wessex Water	Hancock'S Water	WOOTTON BASSETT WWTW	56	665	100
Wessex Water	Luckington Brook	LUCKINGTON WATER RECYCLING CENTRE	45	600	100
Thames Water	River Key	PURTON WWTW	41	581	76.5
Thames Water	River Thames	HATCHETTS SPS	31	477	94.2
Wessex Water	Avon	SHERSTON WASTEWATER TREATMENT WORKS	43	476	99.8
Wessex Water	Cowage Brook,	TOCKENHAM	77	445	98.7
Wessex Water	Rivers Brook	COMPTON BASSETT WWTW	30	393	100
Wessex Water	Dauntsey Brook	THE GREEN PS	42	325	100
Wessex Water	By Brook	MILL LANE PUMPING STATION	56	273	100
Wessex Water	River Marden	QUEMERFORD BRIDGE CSO	46	262	99.6
Wessex Water	River Avon	ST JOHNS STREET PUMPING STATION	71	253	100
Wessex Water	Burton Brook	BURTON WASTEWATER TREATMENT WORKS	37	252	99.8
Wessex Water	By Brook	RECREATION GROUND 1 CSO	54	222	99.7
Wessex Water	Unknown	MOSSES MILL CSO 2	50	222	99.9
Wessex Water	Rodbourne Brook	LOWER STANTON ST QUINTIN WW PS	34	186	100
Wessex Water	Sherston Avon	ST. JOHNS BRIDGE CSO	40	149	93.9
Wessex Water	River Avon	RAF HULLAVINGTON PS	12	134	93.2
Wessex Water	Hancock'S Water	WOOTTON BASSETT CSO	35	125	99.7
Wessex Water	Bourne	SWALLETT GATE PUMPING STATION	34	116	100
Wessex Water	River Marden	PATFORD STREET CSO	25	76	94.2
Wessex Water	By Brook	COLERNE WATER RECYLCING CENTRE	11	45	100
Wessex Water	By Brook	RECREATION GROUND 2 CSO	55	39	99.7
Wessex Water	River Avon	PARK ROAD COMBINED SEWER OVERFLOW	38	32	95.8
Wessex Water	Sherston Avon	FOXLEY ROAD COMBINED SEWER OVERFLOW	55	24	100
Wessex Water	River Avon	PARLIAMENT ROW CSO	23	19	99.8
Wessex Water	Westbury Park W/C Via Sws	NEW ROAD COMBINED SEWER OVERFLOW	3	15	99.1
Wessex Water	River Avon	THE TARTERS CSO	41	14	99.7
Wessex Water	River Avon	BURTON HILL PS	4	10	99.8
Wessex Water	River Avon	LAWNWOOD COMBINED SEWER OVERFLOW	21	9	99.8
Wessex Water	River Marden	THE STRAND CSO	22	9	99.8
Wessex Water	Woodbridge Brook	BRINKWORTH CSO	3	5	93
Wessex Water	River Avon	CHURCH ROAD PUMPING STATION	1	2	100
Wessex Water	Unknown	PATFORD ST/BANK OF RIVER MARDEN CSO	2	1	99.8
Wessex Water	River Avon	HARPERS LANE CSO	4	1	92.6
Wessex Water	River Marden Via Sws	MARKET HILL CSO	2	0	99.8
Wessex Water	River Marden Via Sws	WOOD STREET COMBINED SEWER OVERFLOW	1	0	99.8
Wessex Water	Luckington Brook	ALDERTON STW	0	0	100
Wessex Water	Unknown	MOSSES MILL CSO 1	0	0	99.7

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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