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
Bagley Dike | 153 Spills | 355.8 hours | 1.35
The declared body of water receiving this discharge is the "Bagley Dike" This station has discharged sewage 153 time(s). The station has discharged for a total of 355.8 hour(s). This is 1.35% of the time which we have data for. In total: 14 day(s)* of elapsed time.
99 | 262.8 hours This monitor has been operational for 99% of its total time we have data for. There are 262.8 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Northern General Hospital CSO" is 2023, discharging sewage for 154.7 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
Bagley Dike | 60 Spills | 154.7 hours | 1.76 The declared body of water receiving this discharge is the "Bagley Dike" This station discharged sewage 60 time(s) during 2023. The station discharged for a total of 154.7 hour(s). This is around 6 day(s)* or 1.76% 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
99.6 | 30.6 hours This monitor was operational for 99.6% of the year. Leaving 30.6 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
Yorkshire Water
Primary Permit #
WRA8163
Secondary Permit #
WRA8163 A1
2022
Bagley Dike | 41 Spills | 100.2 hours | 1.14 The declared body of water receiving this discharge is the "Bagley Dike" This station discharged sewage 41 time(s) during 2022. The station discharged for a total of 100.2 hour(s). This is around 4 day(s)* or 1.14% of the year.
99.4 | 46.4 hours This monitor was operational for 99.4% of the year. Leaving 46.4 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
Yorkshire Water
Primary Permit #
WRA8163
Secondary Permit #
WRA8163 A1
2021
Bagley Dike | 52 Spills | 100.8 hours | 1.15 The declared body of water receiving this discharge is the "Bagley Dike" This station discharged sewage 52 time(s) during 2021. The station discharged for a total of 100.8 hour(s). This is around 4 day(s)* or 1.15% of the year.
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
Yorkshire Water
Primary Permit #
WRA8163
Secondary Permit #
WRA8163 A1
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Don at Brightside, Nursery Street and Nursery Lane, Sheffield
River Don at Saville Street, Sheffield
River Don at Kelham Island
River Don at Neepsend and Hillfoot
River Don at Burngreave, Atlas and Attercliffe, Sheffield
River Sheaf and Porter Brook at Effingham Street, Park Square and Victoria Quay
River Don at the Wicker, Sheffield - including Bridge Street and Millsands
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