Arundel and South Downs - 2025 Sewage

Polluted by sewage 14,848 hours in 2025 - That's 1.72 years

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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You're looking at the totals that we have calculated for sewage in Arundel and South Downs for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

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Constituencies near Arundel and South Downs

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Arundel and South Downs, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

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Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Total Duration (days)
Southern Water SOUTH HARTING SSO - 115830 River Rother 82 1,940 h 8m 80.83
Southern Water LIDSEY SSO - 115776 Lidsey Rife 71 1,242 h 7m 51.75
Southern Water FITTLEWORTH SSO - 115744 River Rother 58 1,052 h 43m 43.83
Southern Water ASHINGTON SSO - 115787 Honeybridge Striver R.Adur 58 1,002 h 45m 41.75
Southern Water BARNETTS BRIDGE GRAFFHAM CEO - 108187 River Rother 49 714 h 21m 29.75
Southern Water LIDSEY SSO - 115776 Lidsey Rife 28 552 h 43m 23
Southern Water HENFIELD SSO - 115743 Chess Brook 31 524 h 12m 21.83
Southern Water SOUTH HARTING SSO - 115830 River Rother 20 454 h 38m 18.92
Southern Water FERNHURST SSO - 115866 River Lod 31 392 h 39m 16.33
Southern Water LOXWOOD SSO - 115416 Loxwood Stream 20 391 h 25m 16.29
Southern Water LOXWOOD SSO - 115416 Loxwood Stream 30 383 h 7m 15.96
Southern Water PULBOROUGH SSO - 115429 River Stor 24 374 h 7m 15.58
Southern Water ASHINGTON SSO - 115787 Honeybridge Striver R.Adur 18 368 h 54m 15.33
Southern Water BARNETTS BRIDGE GRAFFHAM CEO - 108187 River Rother 21 358 h 58m 14.92
Southern Water FORD ROAD ARUNDEL CEO - 108002 Tidal Waters Of River Arun 49 346 h 16m 14.42
Southern Water ROGATE SSO - 115749 River Rother 21 334 h 36m 13.92
Southern Water SMALL DOLE SSO - 115768 Unnamed Tidal River Adur 27 333 h 18m 13.88
Southern Water PETWORTH CSO - 115427 River Rother 31 288 h 48m 12
Southern Water MARSHALL CLOSE BARNHAM CSO - 108037 Barnham Rife 35 240 h 55m 10
Southern Water HENFIELD SSO - 115743 Chess Brook 15 214 h 44m 8.92
Southern Water STEYNING SSO - 115442 Black Sewer River Adur 12 212 h 6m 8.83
Southern Water FERNHURST SSO - 115866 River Lod 13 210 h 21m 8.75
Southern Water WISBOROUGH GREEN SSO - 115793 River Kird 17 199 h 34m 8.29
Southern Water STEYNING SSO - 115442 Black Sewer River Adur 8 171 h 50m 7.12
Southern Water BURY SSO - 115801 River Arun 14 170 h 22m 7.08
Southern Water BURY SSO - 115801 River Arun 10 168 h 32m 7
Southern Water SMALL DOLE SSO - 115768 Unnamed Tidal River Adur 11 160 h 51m 6.67
Southern Water ROGATE SSO - 115749 River Rother 14 158 h 9m 6.58
Southern Water BREWHURST MILL LOXWOOD CEO - 108302 Loxwood Stream 21 146 h 22m 6.08
Southern Water STORRINGTON SSO - 115931 River Stor 12 145 h 22m 6.04
Southern Water SOUTH AMBERSHAM SSO - 115439 River Rother 6 134 h 42m 5.58
Southern Water HOLLANDS ROAD HENFIELD CEO - 107409 River Adur 28 132 h 52m 5.5
Southern Water MARSHALL CLOSE BARNHAM CSO - 108037 Barnham Rife 17 131 h 47m 5.46
Southern Water WISBOROUGH GREEN SSO - 115793 River Kird 9 127 h 20m 5.29
Southern Water FITTLEWORTH SSO - 115744 River Rother 21 125 h 2m 5.21
Southern Water PULBOROUGH SSO - 115429 River Stor 5 87 h 47m 3.62
Southern Water BREWHURST MILL LOXWOOD CEO - 108302 Loxwood Stream 13 87 h 11m 3.62
Southern Water BRIDGEFOOT KIRDFORD CEO - 108193 Freshwater River 4 83 h 51m 3.46
Southern Water HOLLANDS ROAD HENFIELD CEO - 107409 River Adur 9 76 h 35m 3.17
Southern Water SOUTH AMBERSHAM SSO - 115439 River Rother 4 68 h 34m 2.83
Southern Water THE LEYS FERNHURST CSO - 108357 River Rother West 11 66 h 30m 2.75
Southern Water IPING LANE IPING NORTH CEO - 108261 Freshwater River 9 60 h 34m 2.5
Southern Water LURGASHALL SSO - 115872 River Lod 4 50 h 39m 2.08
Southern Water PETWORTH CSO - 115427 River Rother 9 42 h 42m 1.75
Southern Water FORD ROAD ARUNDEL CEO - 108002 Tidal Waters Of River Arun 10 39 h 42m 1.62
Southern Water STORRINGTON SSO - 115931 River Stor 6 38 h 1.58
Southern Water GLEBE ROAD FERNHURST CSO - 108077 River Rother West 8 37 h 36m 1.54
Southern Water PETWORTH ROAD HAMBLEDON CEO - 109386 Un River Arun 3 31 h 46m 1.29
Southern Water LURGASHALL SSO - 115872 River Lod 3 31 h 9m 1.29
Southern Water BRIDGEFOOT KIRDFORD CEO - 108193 Freshwater River 3 19 h 37m 0.79
Southern Water Unknown Unknown 3 18 h 37m 0.75
Southern Water ABBEY ROAD STEYNING CSO - 107379 River Adur 11 16 h 59m 0.67
Southern Water TOWN QUAY ARUNDEL CEO - 108012 Freshwater River 9 12 h 30m 0.5
Southern Water THE LEYS FERNHURST CSO - 108357 River Rother West 1 11 h 12m 0.46
Southern Water MILL ROAD WEST CHILTINGTON CSO - 111802 River Chilt 4 10 h 39m 0.42
Southern Water GLEBE ROAD FERNHURST CSO - 108077 River Rother West 1 9 h 38m 0.38
Southern Water THE WHARF MIDHURST CEO - 108361 Freshwater River 1 9 h 21m 0.38
Southern Water TOWN QUAY ARUNDEL CEO - 108012 Freshwater River 5 9 h 15m 0.38
Southern Water COLDWALTHAM CSO - 116054 River Arun 1 8 h 11m 0.33
Southern Water PETWORTH ROAD HAMBLEDON CEO - 109386 Un River Arun 2 5 h 45m 0.21
Southern Water THE WHARF MIDHURST CEO - 108361 Freshwater River 2 2 h 50m 0.08
Southern Water ABBEY ROAD STEYNING CSO - 107379 River Adur 2 2 h 31m 0.08
Southern Water SINGLETON RELIEF CEO - 108335 River Lavant 1 1 h 52m 0.04
Southern Water IPING LANE IPING NORTH CEO - 108261 Freshwater River 1 0 h 0
Southern Water Unknown Unknown 0 0 h 0
Southern Water COLDWALTHAM CSO - 116054 River Arun 0 0 h 0
Southern Water SINGLETON RELIEF CEO - 108335 River Lavant 0 0 h 0
Southern Water WYKEHAM CLOSE STEYNING CSO - 108251 River Adur 0 0 h 0
Southern Water Unknown Unknown 0 0 h 0
Southern Water MILL ROAD WEST CHILTINGTON CSO - 111802 River Chilt 0 0 h 0

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. Live sewage data from Stream Water API

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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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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