Analysing sewage pollution by the Water Industry
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NORTH WIRRAL (EAST) was the #3 most polluted shellfish area in England & Wales, by duration of sewage overflows, as reported by the water companies
Here are all the reported sewage overflow totals for NORTH WIRRAL (EAST) in 2022.
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 % |
|---|---|---|---|---|---|
| United Utilities | Bidston Stream | LEASOWE ROAD CSO | 80 | 1,813 | 100 |
| United Utilities | River Mersey Estuary | BROMBOROUGH WWTW | 131 | 1,608 | 100 |
| United Utilities | River Mersey Estuary/River Birket | BIRKENHEAD WWTW BIRKE | 114 | 1,104 | 100 |
| United Utilities | Mersey Estuary | WOODSIDE CSO | 55 | 761 | 99.8 |
| United Utilities | River Mersey Estuary | BROMBOROUGH WWTW | 102 | 758 | 100 |
| United Utilities | River Mersey Estuary | DOCK ROAD SOUTH CSO | 114 | 754 | 100 |
| United Utilities | River Mersey Estuary | LIVERPOOL WWTW | 164 | 556 | 100 |
| United Utilities | River Fender | UPTON STORM TANKS | 43 | 354 | 99.7 |
| United Utilities | River Birkett | BIDSTON BY-PASS CSO | 44 | 295 | 100 |
| United Utilities | River Alt | ST MICHAELS ROAD/MANOR ROAD CSO | 57 | 255 | 100 |
| United Utilities | Middle Brook | NO 76 MIDDLE BROOK CSO | 94 | 237 | 95.9 |
| United Utilities | River Calder | HONEY HOLME LANE CSO | 42 | 205 | 100 |
| United Utilities | Mersey Estuary | THE DELL COMBINED SEWER OVERFLOW | 87 | 181 | 99.9 |
| United Utilities | Mersey Estuary | ST ANDREWS ROAD/ST MICHAEL CSO | 83 | 141 | 100 |
| United Utilities | Rvr Irwell Via Langwood Brook | MANCHESTER RD DALESFORD RD 362EJ | 84 | 118 | 100 |
| United Utilities | Trub Brook River Irk | WAVERLEY RD CSO 352W4 | 24 | 87 | 100 |
| United Utilities | Carr Drain | HARRINGTON AVENUE CSO | 41 | 86 | 100 |
| United Utilities | River Mersey Estuary/River Birket | BIRKENHEAD WWTW BIRKE | 34 | 75 | 99.8 |
| United Utilities | Bidston Stream | SANDY LANE CSO | 79 | 71 | 100 |
| United Utilities | Prenton Brook | BARNSTON STORM TANK 51070 | 18 | 63 | 100 |
| United Utilities | Arrowe Brook River Birket | ARROWEBROOK LANE CSO | 20 | 55 | 43.4 |
| United Utilities | Bidston Stream | STATION RD COMBINED SEWER OVERFLOW | 14 | 49 | 99.5 |
| United Utilities | River Fender | HOYLAKE ROAD/CHAPELHILL CSO | 18 | 32 | 86 |
| United Utilities | Mersey Estuary | WALLACRE ROAD CSO | 36 | 30 | 100 |
| United Utilities | River Mersey | STRAND ROAD STORM SEWER OVERFLOW | 12 | 28 | 100 |
| United Utilities | River Mersey Estuarine Waters | BANKHALL RELIEF CSO 99005 | 32 | 27 | 0 |
| United Utilities | Mersey Estuary | EASTHAM VILLAGE CSO | 34 | 24 | 100 |
| United Utilities | River Ribble Estuary | ST PAULS ROAD CSO | 37 | 22 | 100 |
| United Utilities | Mersey Estuary | THERMAL ROAD/PORT CAUSEWAY CSO | 32 | 19 | 100 |
| United Utilities | Liverpool Bay | HARBORD ROAD PS 99047 | 20 | 16 | 100 |
| United Utilities | Mersey Estuary | BROMBOROUGH POOL VILLAGE PS 51026 | 3 | 9 | 100 |
| United Utilities | River Mersey Estuary | WINDBOURNE CSO | 5 | 7 | 100 |
| United Utilities | River Mersey | BANKHALL CSO 99007 LIV0038 | 14 | 6 | 0 |
| United Utilities | Mill Dam | ST NICHOLAS LANE PUMPING STATION | 11 | 3 | 100 |
| United Utilities | River Mersey Estuary | BOOTLE NORTHERN OPC CSO 99102 | 12 | 3 | 0 |
| United Utilities | River Mersey Estuary | RIMROSE BROOK CSO | 13 | 3 | 100 |
| United Utilities | River Mersey Estuary | BEACONS GUTTER SSO | 9 | 2 | 100 |
| United Utilities | River Mersey Estuary | FULWOOD CSO | 1 | 2 | 100 |
| United Utilities | Mersey Estuary | SANDHILLS LANE CSO | 3 | 0 | 100 |
| United Utilities | Mersey Estuary | BATTERY LANE CSO | 7 | 0 | 100 |
| United Utilities | Bromborough Pool | PORT CAUSEWAY/CROSSWAY CSO | 5 | 0 | 100 |
| United Utilities | Bidston Stream | WALLACRE ROAD/BEAUFORT DRIVE CSO | 4 | 0 | 100 |
| United Utilities | River Mersey Estuary | MILLERS BRIDGE CSO 99004 | 1 | 0 | 99.9 |
| United Utilities | River Mersey Estuary | LIVERPOOL WWTW | 2 | 0 | 100 |
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.
Analysing sewage pollution by the Water Industry
With generous support from: