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Bristol North West was polluted by sewage 1,786 times in 2023
lasting 5,691 hours

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Bristol North West in 2023
49 Sites polluted by Wessex Water
1,786 sewage dumps
5,691 h duration
That's 7.9 months. On average 4.9 times a day
Change Over Time
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Constituencies near Bristol North West
Waterways in Bristol North West

Pollution Summary 2023

Here are all the reported sewage overflow totals for Bristol North West 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 59 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 Severn Estuary AVONMOUTH STW 148 2,336 100
Wessex Water River Avon Via Sws THE PORTWAY CSO 60 631 93.6
Wessex Water River Avon Via Sws LOWER HIGH STREET CSO 44 356 99.6
Wessex Water Horfield Brook Via Sws FILTON AVENUE CSO 116 302 99.9
Wessex Water River Trym Via Sws WELLINGTON HILL WEST CSO 67 208 99.9
Wessex Water River Avon WEST TOWN ROAD PUMPING STATION 71 195 100
Wessex Water River Trym Via Sws STOKE LANE COMBINED SEWER OVERFLOW 78 152 100
Wessex Water River Avon WESTBURY ON TRYM STORM OVERFLOW 53 141 100
Wessex Water River Trym GLENWOOD ROAD CSO 65 125 100
Wessex Water River Trym Via Sws CHERINGTON ROAD CSO 57 124 100
Wessex Water River Trym Via Sws 11 NEWCOMBE ROAD CSO 44 118 100
Wessex Water River Trym Via Sws BISHOPTHORPE ROAD CSO 78 112 100
Wessex Water River Trym Via Sws HENLEAZE ROAD CSO 73 111 99.7
Wessex Water River Avon Via Sws PORTWAY COMBINED SEWER OVERFLOW 54 99 50.2
Wessex Water River Trym Via Sws DRUID WOOD COMBINED SEWER OVERFLOW 50 88 99.7
Wessex Water River Trym TRYM ROAD CSO 39 86 100
Wessex Water River Severn Estuary Via Sws THIRD WAY CSO 25 68 100
Wessex Water River Avon AVONMOUTH WAY COMBINED SEWER OF 25 60 99.7
Wessex Water River Avon WEST TOWN ROAD PUMPING STATION 29 55 100
Wessex Water River Trym MERLIN CLOSE CSO 35 50 100
Wessex Water River Trym Via Sws 224 HENLEAZE ROAD CSO 49 39 94.5
Wessex Water Bristol Avon Via Sws Estuarine GLOUCESTER ROAD CSO 43 31 99.5
Wessex Water River Severn Via Sws QUEEN STREET CSO 12 22 98.8
Wessex Water River Avon BRIDGE VALLEY ROAD CSO 36 19 99.6
Wessex Water River Avon Via Sws HUDDS VALE ROAD CSO 38 17 100
Wessex Water Boiling Wells Lane Stream MULLER ROAD ALLOTMENTS CSO 25 17 99.8
Wessex Water River Avon Via Sws AVONMOUTH ROAD CSO 52 16 100
Wessex Water River Trym Via Sws ABBEY ROAD COMBINED SEWER OVERFLOW 32 15 100
Wessex Water River Trym Via Sws WESTBURY ROAD COMBINED SEWER OF 24 15 100
Wessex Water River Trym Via Sws WESTBURY ROAD COMBINED SEWER OF 36 15 99.1
Wessex Water River Avon Via Sws 5 SPRINGFIELD AVENUE CSO 35 7 100
Wessex Water River Trym Via Sws HENLEAZE ROAD CSO 21 6 93.9
Wessex Water River Trym Via Sws 250 HENLEAZE ROAD CSO 20 6 99.7
Wessex Water Cranbrook Via Sws DEVONSHIRE ROAD CSO 32 5 100
Wessex Water River Trym Via Sws 175 WELLINGTON HILL WEST CSO 8 5 100
Wessex Water River Trym Via Sws SHIREHAMPTON ROAD CSO 25 4 84
Wessex Water River Avon Via Sws SEA MILLS LANE (2) CSO 3 4 99.7
Wessex Water River Avon Via Sws 30 STATION ROAD CSO 21 3 99.9
Wessex Water River Avon Via Sws OLD PARK RD COMBINED SEWER OVERFLOW 24 3 74.2
Wessex Water River Avon Via Sws SEA MILLS LANE (PORTWAY BRIDGE) CSO 2 2 100
Wessex Water River Avon Via Sws 7 SPRINGFIELD AVENUE CSO 18 2 94.2
Wessex Water River Avon WATLING WAY COMBINED SEWER OVERFLOW 4 0 100
Wessex Water Cranbrook 82 HOWARD ROAD CSO 3 0 99.8
Wessex Water Cranbrook Via Sws 1 HOWARD ROAD CSO 3 0 100
Wessex Water River Trym Via Sws HARBURY ROAD COMBINED SEWER OF 4 0 100
Wessex Water Tidal Avon O/S 82 CHARLTON ROAD CSO 2 0 99.8
Wessex Water River Avon LAMPLIGHTERS SEWAGE PUMPING STATION 1 0 99.9
Wessex Water River Trym Via Sws HARBURY ROAD CSO 1 0 99.8
Wessex Water River Trym Via Sws OAKWOOD ROAD CSO 1 0 100
Wessex Water Bristol Avon AVONMOUTH 'B' PUMPING STATION 0 0 100
Wessex Water River Trym Via Sws EASTFIELD ROAD CSO 0 0 100
Wessex Water River Trym Via Sws 147 WELLINGTON HILL WEST NO2 CSO 0 0 99.8
Wessex Water River Trym Via Sws LAWRENCE GROVE CSO 0 0 99.9
Wessex Water River Trym Via Sws HENBURY ROAD CSO 0 0 100
Wessex Water River Trym Via Sws HENLEAZE PARK DRIVE CSO 0 0 91.3
Wessex Water River Trym Via Sw ROCKSIDE DRIVE CSO 0 0 99.9
Wessex Water River Trym Via Sws 147 WELLINGTON HILL WEST NO2 CSO 0 0 74
Wessex Water Bristol Avon 201 GLOUCESTER ROAD CSO 0 0 100
Wessex Water River Avon Via Sws LOWER HIGH STREET CSO 0 0 78.2

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.

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