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Harwich and North Essex - Live Sewage

Polluted by sewage 2,844 hours in 2026 , monitoring offline 1,507 hours , potential overflows 340 hours so far..

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

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Harwich and North Essex so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Constituencies near Harwich and North Essex

Daily Data

Jan - 1,011 hours , 105 potential
Feb - 1,774 hours , 235 potential
Mar - 58 hours , 58 offline
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
Please note: We don't have rainfall data for Wales. If you know where to source it please let us know!
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Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Anglian Water DEDHAM STW Dedham Mill Tail- Rv Stour 49 998 h 57m -
Anglian Water W BERGHOLT STW River Colne 25 513 h 50m 33 h
Anglian Water EIGHT ASH GREEN STW River Colne 33 391 h 43m -
Anglian Water EIGHT ASH GREEN-FORD ST TPS River Colne 24 363 h 45m -
Anglian Water COLCHESTER-HAVEN RD OV Tidal River Colne 8 130 h 13m -
Anglian Water HARWICH AND DOVERCOURT STW Tidal River Stour 12 124 h 34m -
Anglian Water THORRINGTON STW Tove 30 119 h 23m -
Anglian Water Colchester Water Recycling Centre Colne Estuary 19 106 h 21m -
Anglian Water Colchester - Rowhedge Regent Court Combined Sewer Overflow River Colne 6 31 h 45m -
Anglian Water LAWFORD-WIGNALL ST SP Wignall Brook 4 20 h 44m -
Anglian Water COLCHESTER STW Colne Estuary 5 13 h 46m 340 h
Anglian Water MANNINGTREE STW Wignall Brook Stour Estuary 5 12 h 14m -
Anglian Water Brightlingsea West Dyke Terminal Pumping Station West Dyke 3 7 h -
Anglian Water COLCHESTER-BOURNE MILL OV Bourne Brook 6 5 h 31m -
Anglian Water COLCHESTER STW Colne Estuary 3 1 h 16m -
Anglian Water Brightlingsea Overflow Lower Park Road West Dyke 2 1 h -
Anglian Water Brightlingsea - Spring Road Combined Sewer Overflow West Dyke 3 0 h 45m -
Anglian Water HARWICH AND DOVERCOURT STW Tidal River Stour 1 0 h 34m -
Anglian Water Brightlingsea Station Road Combined Sewer Overflow West Dyke 2 0 h 30m -
Anglian Water WIVENHOE-PHILLIP RD OV Tidal River Colne 1 0 h 14m -
Anglian Water HARWICH AND DOVERCOURT STW Tidal River Stour 0 0 h -
Anglian Water WIVENHOE-PHILLIP RD OV Tidal River Colne 0 0 h -
Anglian Water EIGHT ASH GREEN-HEATHFIELDS SP River Colne 0 0 h -
Anglian Water COLCHESTER-BOURNE MILL OV Bourne Brook 0 0 h -
Anglian Water WIVENHOE-THE FOLLY OV Tidal River Colne 0 0 h -
Anglian Water Great Bromley Water Recycling Centre Bromley Brook 0 0 h -
Anglian Water Brightlingsea Overflow (Western Road) Community Centre West Dyke 0 0 h -
Anglian Water BRIGHTLINGSEA-SAMPSONS RD SP Unnamed Brightlingsea Bro 0 0 h -
Anglian Water Rowhedge - High Street Pumping Station Birch Brook 0 0 h -
Anglian Water GT HORKESLEY-IVY LODGE R SP Horkesley Black Brook 0 0 h -
Anglian Water Mistley, School Lane CSO River Stour 0 0 h -
Anglian Water Brightlingsea Overflow (Western Road) Community Centre West Dyke 0 0 h -
Anglian Water COLCHESTER STW Colne Estuary 0 0 h -
Anglian Water Brightlingsea Overflow (Bellfld 35) West Dyke 0 0 h -
Anglian Water LAWFORD-WIGNALL ST SP Wignall Brook 0 0 h -
Anglian Water THORRINGTON WRC Ouse 0 0 h -
Anglian Water MANNINGTREE STW Wignall Brook Stour Estuary 0 0 h -
Anglian Water Colchester - Rowhedge Albion Street Combined Sewer Overflow River Colne 0 0 h -
Anglian Water ELMSTEAD-HOLLY WY THTCHRS D SP Frating Brook 0 0 h -
Anglian Water DEDHAM STW Dedham Mill Tail- Rv Stour 0 0 h -
Anglian Water Mistley, School Lane CSO River Stour 0 0 h -
Anglian Water EIGHT ASH GREEN-HEATHFIELDS SP River Colne 0 0 h -
Anglian Water EIGHT ASH GREEN STW River Colne 0 0 h -
Anglian Water Brightlingsea Overflow (Bellfld 35) West Dyke 0 0 h -
Anglian Water Brightlingsea Station Road Combined Sewer Overflow West Dyke 0 0 h -
Anglian Water GT HORKESLEY-IVY LODGE R SP Horkesley Black Brook 0 0 h -
Anglian Water Great Bromley Water Recycling Centre Bromley Brook 0 0 h -
Anglian Water HARWICH AND DOVERCOURT STW Tidal River Stour 0 0 h -
Anglian Water BRIGHTLINGSEA-SAMPSONS RD SP Unnamed Brightlingsea Bro 0 0 h -
Anglian Water Rowhedge - High Street Pumping Station Birch Brook 0 0 h -
Anglian Water Dovercourt - Low Road Pumping Station South Hall Creek 0 0 h -
Anglian Water THORRINGTON STW Tove 0 0 h -
Anglian Water Colchester - Rowhedge Albion Street Combined Sewer Overflow River Colne 0 0 h -
Anglian Water COLCHESTER-HAVEN RD OV Tidal River Colne 0 0 h -
Anglian Water West Mersea Water Recycling Centre Blackwater Estuary 0 0 h -
Anglian Water Colchester Water Recycling Centre Colne Estuary 0 0 h -
Anglian Water Colchester - Rowhedge Regent Court Combined Sewer Overflow River Colne 0 0 h -
Anglian Water WIVENHOE-THE FOLLY OV Tidal River Colne 0 0 h -
Anglian Water COLCHESTER STW Colne Estuary 0 0 h -
Anglian Water West Mersea Water Recycling Centre Blackwater Estuary 0 0 h 1,474 h
Anglian Water THORRINGTON WRC Ouse 0 0 h -
Anglian Water Brightlingsea Overflow Lower Park Road West Dyke 0 0 h -
Anglian Water W BERGHOLT STW River Colne 0 0 h -
Anglian Water EIGHT ASH GREEN-FORD ST TPS River Colne 0 0 h -
Anglian Water Brightlingsea - Spring Road Combined Sewer Overflow West Dyke 0 0 h -
Anglian Water Brightlingsea West Dyke Terminal Pumping Station West Dyke 0 0 h -

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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Analysing sewage pollution by the Water Industry

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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
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