Designated shellfish area 'Tamar' polluted by sewage 739 times in 2023 - lasting 5,981 hours

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
Totals for Tamar in 2023
28 Sites polluted by South West Water
739 sewage dumps
5,981 h duration
That's 8.31 months. On average 2 times a day
How does Tamar compare?

Tamar was the #7 most polluted shellfish area in England & Wales, by duration of sewage overflows, as reported by the water companies

Pollution Summary 2023

Here are all the reported sewage overflow totals for Tamar in 2023.

Accuracy Warning We use data from the water companies, but we are seeing many anomalies, that make us believe that location information is quite poor. The situation is likely far worse than reported here.

In particular: Totals on this page can differ from totals in the Ranked Shellfish page - number on this page are higher - this is due to a lack of standardization on shellfish area names. This page more accurately counts the differing names. For example "Solway" and "SOLWAY" are counted as different in the rankings, but correctly aggregated here.

Other CSOs may also be located nearby, however the water companies claim that these do not affect the water quality here.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
South West Water River Tamar ERNESETTLE SEWAGE TREATMENT WORKS 90 1,455 100
South West Water Weston Mill Lake CAMELS HEAD WWTW 78 1,207 100
South West Water Weston Mill Lake CAMELS HEAD WWTW 76 930 100
South West Water River Tamar ERNESETTLE SEWAGE TREATMENT WORKS 106 776 100
South West Water Weston Mill Stream HONDA GARAGE CSO 67 701 100
South West Water Tamerton Stream HAYESEND FARM CSO 18 187 100
South West Water Tamerton Lake WHITLEIGH WOOD CSO 44 171 100
South West Water River Lyner FORDER NO 1 PSCSO/EO 20 148 100
South West Water Saltmill Creek RIVERVIEW PSCSO/EO 14 111 100
South West Water Honicknowle Stream HONICKNOWLE CSO 23 75 100
South West Water Tamerton Lake TAMERTON FOLIOT PUMPING STATION 16 44 100
South West Water Southway Stream SOUTHWAY DRIVE CSO 33 41 100
South West Water Saltmill Creek ADIT LANE CSO 31 38 38
South West Water River Lyner FORDER NO 2 PSCSO/EO 11 23 100
South West Water River Tamar Estuary COOMBE ROAD CSO 18 22 96.4
South West Water Tamar Estuary OLD FERRY ROAD CSO 12 13 100
South West Water Weston Mill Lake FLORENCE STREET CSO 43 8 100
South West Water River Tamar Estuary WATERSIDE PUMPING STATION 6 7 100
South West Water Weston Mill Lake CAMELS HEAD WWTW 2 3 98.6
South West Water River Tamar BRUNEL BRIDGE CSO 9 3 100
South West Water River Tamar Estuary COWDRY CLOSE CSO 5 2 100
South West Water Weston Mill Creek Via Wtr Crse WOLSELEY ROAD TANK CSO 1 1 100
South West Water River Lynher Estuary MOORLANDS PSCSO/EO 4 1 100
South West Water Saltmill Creek HOMER PARK CSO 3 1 100
South West Water Ham Brook HAM LANE STORM TANK CSO 3 0 100
South West Water Honicknowle Stream MOWHAY ROAD NO.2 CSO 2 0 96.4
South West Water Weston Mill Lake Via W'Course MAUNSELL CLOSE CSO 2 0 100
South West Water Kinterbury Creek Via W/Crse R/O 615 WOLSELEY ROAD 2 0 47.5

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales

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.