This is a sewage discharge monitoring station, which is usually a type of Event Duration Monitor (EDM). These stations themselves are designed to mitigate the impact of heavy rainfall by discharging, under permitted conditions, any overflow into a water body. They are often actively discharging during flood events. This page presents the data acquired by the monitoring system for this discharge station.
Sewage Reports that include this Station
Operational Summary - 2021-2023
River Mersey | 331 Spills | 1343.5 hours | 5.11
The declared body of water receiving this discharge is the "River Mersey" This station has discharged sewage 331 time(s). The station has discharged for a total of 1343.5 hour(s). This is 5.11% of the time which we have data for. In total: 55 day(s)* of elapsed time.
99.3 | 175.2 hours This monitor has been operational for 99.3% of its total time we have data for. There are 175.2 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Withington Pumping Station 28009" is 2021, discharging sewage for 558.2 hours of the year.
Uptimes below 90% (red line) should be accompanied by a reason
*This is total time in days, not individual days.
Yearly Summary
Most Recent Year - 2023
River Mersey | 127 Spills | 492.3 hours | 5.62 The declared body of water receiving this discharge is the "River Mersey" This station discharged sewage 127 time(s) during 2023. The station discharged for a total of 492.3 hour(s). This is around 20 day(s)* or 5.62% of the year. The following reasons have been given for the high spill frequency in 2023: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
99.9 | 5.2 hours This monitor was operational for 99.9% of the year. Leaving 5.2 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
United Utilities
Primary Permit #
01MAN0250
Secondary Permit #
MAN0250
2022
River Mersey | 94 Spills | 292.9 hours | 3.34 The declared body of water receiving this discharge is the "River Mersey" This station discharged sewage 94 time(s) during 2022. The station discharged for a total of 292.9 hour(s). This is around 12 day(s)* or 3.34% of the year. The following reasons have been given for the high spill frequency in 2022: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
99.9 | 8.7 hours This monitor was operational for 99.9% of the year. Leaving 8.7 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
United Utilities
Primary Permit #
01MAN0250
Secondary Permit #
MAN0250
2021
River Mersey | 110 Spills | 558.2 hours | 6.37 The declared body of water receiving this discharge is the "River Mersey" This station discharged sewage 110 time(s) during 2021. The station discharged for a total of 558.2 hour(s). This is around 23 day(s)* or 6.37% of the year. The following reasons have been given for the high spill frequency in 2021: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
100 | 0 hours This monitor was operational for 100% of the year. Leaving 0 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
United Utilities
Primary Permit #
01MAN0250
Secondary Permit #
MAN0250
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Mersey at Chorlton & Sale Golf Clubs, Chorlton Water Parks and Stretford
River Mersey at East Didsbury, from Tuscan Road to Wilmslow Road
Old Eea Brook at Urmston
River Mersey at Urmston and Ashton-on-Mersey
River Mersey at Flixton Rural
Middle River Mersey catchment including areas near Bramhall, Stockport, Sale, Altrincham and Urmston
River Mersey at West Didsbury, Northenden Golf Club and Palatine Road
Gatley Brook at Sharston Industrial Estate
River Mersey at West Didsbury, Mersey Bank Playing Fields and surrounding areas
River Mersey at East Didsbury, Millgate Lane and Stenner Lane areas
River Mersey at Fletcher Moss and Withington Golf Course
Station overseen (meaning either provided, or regulated) by: The Environment Agency The information displayed here is used under license. We are not affiliated with any governing, or other, bodies. Nor do they necessarily endorse us, or us them. Please note that FloodMapper does not verify or check the accuracy of the data provided by third parties. The data is used as received from the source. Any underlying errors, inconsistencies, or inaccuracies in the original data will be reflected in the information presented on our platform. Users are advised to exercise their own judgment and caution when using the data for decision-making purposes. Information about our data sources and licenses can be found
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