Top of the Poops | Constituency Sewage Map - 2025 Data| Ellesmere Port and Bromborough

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Ellesmere Port and Bromborough 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.

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 Ellesmere Port and Bromborough

Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
United Utilities	BROMBOROUGH WwTW	River Mersey Estuary	90	1,028 h	732 h
United Utilities	Dock Road South PS, Bromborough	River Mersey Estuary	68	560 h 56m	5 h
United Utilities	BROMBOROUGH WwTW	River Mersey Estuary	76	540 h 12m	-
United Utilities	BROMBOROUGH WwTW	River Mersey Estuary	27	396 h 51m	-
United Utilities	Mayfield Drive PS1 CSO (512EZ)	River Mersey Estuary	68	336 h 44m	12 h
United Utilities	Dock Road South PS, Bromborough	River Mersey Estuary	22	175 h 57m	57 h
United Utilities	BROMBOROUGH WwTW	River Mersey Estuary	19	174 h 10m	-
United Utilities	Dock Road South	Mersey Estuary	35	159 h 25m	41 h
United Utilities	The Dell CSO	Mersey Estuary	36	127 h 48m	5 h
United Utilities	Power House Road PS	Manchester Ship Canal	31	126 h 5m	-
United Utilities	Rivacre Valley Park CSO	Rivacre Brook	41	89 h 45m	248 h
United Utilities	Mayfield Drive PS1 CSO (512EZ)	River Mersey Estuary	14	61 h 37m	-
United Utilities	Rivacre Valley Park CSO (182OG) (ELL0010)	Rivacre Brook	12	56 h 52m	22 h
United Utilities	Dock Road South	Mersey Estuary	13	53 h 8m	5 h
United Utilities	Eastham Rake Combined Sewer Overflow (Site ID 51068) (WIR0111)	Dibbinsdale Brook	9	49 h 35m	0 h
United Utilities	Little Stanney SO	Stanney Brook	8	35 h 52m	9 h
United Utilities	The Dell CSO	Mersey Estuary	12	24 h 22m	2 h
United Utilities	Eastham Village CSO	Mersey Estuary	20	23 h 54m	7 h
United Utilities	Thermal Road Port, Causeway	Mersey Estuary	15	20 h 32m	27 h
United Utilities	Rivacre Valley Park CSO	Rivacre Brook	12	18 h 28m	-
United Utilities	Power House Road PS	Manchester Ship Canal	6	16 h 56m	-
United Utilities	Rivacre Valley Park CSO (182OG) (ELL0010)	Rivacre Brook	8	9 h 58m	20 h
United Utilities	Eastham Village CSO	Mersey Estuary	4	4 h 6m	0 h
United Utilities	Bromborough Pool Village PS	Mersey Estuary	2	3 h 59m	-
United Utilities	Rear of Valley Drive CSO	Rivacre Brook	3	3 h 58m	-
United Utilities	Eastham Rake Combined Sewer Overflow (Site ID 51068) (WIR0111)	Dibbinsdale Brook	1	2 h 49m	-
United Utilities	Thermal Road Port, Causeway	Mersey Estuary	2	1 h 6m	-
United Utilities	Bromborough Pool Village PS	Mersey Estuary	0	0 h	-
United Utilities	Port Causeway/Crossway CSO	Bromborough Pool	0	0 h	0 h
United Utilities	Port Causeway/Crossway CSO	Bromborough Pool	0	0 h	-
United Utilities	Little Stanney SO	Stanney Brook	0	0 h	-
United Utilities	Mayfield Drive Ww Ntwk PS	River Mersey	0	0 h	-
United Utilities	No 3 Park Road CSO	Manchester Ship Canal	0	0 h	-
United Utilities	Rear of Valley Drive CSO	Rivacre Brook	0	0 h	-
United Utilities	Mayfield Drive Ww Ntwk PS	River Mersey	0	0 h	-
United Utilities	No 3 Park Road CSO	Manchester Ship Canal	0	0 h	-

Company

Site Name

Receiving Waterway

Overflow Days

Total Duration (hours)

Offline/Potential Pollution

United Utilities

BROMBOROUGH WwTW

River Mersey Estuary

1,028 h

732 h

United Utilities