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River Irwell at Sherborne Street CSO

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 Irwell | 118 Spills |
150.4 hours | 0.57


The declared body of water receiving this discharge is the "River Irwell"
This station has discharged sewage 118 time(s).
The station has discharged for a total of 150.4 hour(s).
This is 0.57% of the time which we have data for.
In total: 6 day(s)* of elapsed time.

94.6 | 1401.5 hours
This monitor has been operational for 94.6% of its total time we have data for.
There are 1401.59 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Sherborne Street CSO" is 2021, discharging sewage for 79.1 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 Irwell | 36 Spills |
40.7 hours | 0.46

The declared body of water receiving this discharge is the "River Irwell"
This station discharged sewage 36 time(s) during 2023.
The station discharged for a total of 40.7 hour(s).
This is around 1 day(s)* or 0.46% 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

93.4 | 571.1 hours
This monitor was operational for 93.4% of the year.
Leaving 571.1 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorUnited Utilities
Primary Permit #016993836
Secondary Permit #MAN0052

2022
River Irwell | 31 Spills |
30.6 hours | 0.34

The declared body of water receiving this discharge is the "River Irwell"
This station discharged sewage 31 time(s) during 2022.
The station discharged for a total of 30.6 hour(s).
This is around 1 day(s)* or 0.34% 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

91.8 | 715.6 hours
This monitor was operational for 91.8% of the year.
Leaving 715.6 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorUnited Utilities
Primary Permit #016993836
Secondary Permit #MAN0052

2021
River Irwell | 51 Spills |
79.1 hours | 0.9

The declared body of water receiving this discharge is the "River Irwell"
This station discharged sewage 51 time(s) during 2021.
The station discharged for a total of 79.1 hour(s).
This is around 3 day(s)* or 0.9% 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

AttributeValue
Governing BodyThe Environment Agency
OperatorUnited Utilities
Primary Permit #016993836
Secondary Permit #MAN0052


FloodMapper is not affiliated with this monitoring stations operator(s) or any other entities that may be mentioned on this page.
All trademarks and registered trademarks are the property of their respective owners.

Operator comments are presented, unedited, as they were received by us and do not reflect our views or position

Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
No flood warning icon

River Irwell at Prestolee and Ringley Bridges


No flood warning icon

River Irwell at Salford, Lower Broughton


No flood warning icon

River Irwell at Kearsley


No flood warning icon

River Irwell at Salford, Lower Kersal and Charlestown


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Station Data Information
Station overseen (meaning either provided, or regulated) by: The Environment Agency
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