River Derwent at Derby - Eastgate/Pentagon Island (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 - 2022-2023
River Derwent | 57 Spills | 243.8 hours | 1.39
The declared body of water receiving this discharge is the "River Derwent" This station has discharged sewage 57 time(s). The station has discharged for a total of 243.8 hour(s). This is 1.39% of the time which we have data for. In total: 10 day(s)* of elapsed time.
99 | 175.2 hours This monitor has been operational for 99% 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 "Derby - Eastgate/Pentagon Island (CSO)" is 2023, discharging sewage for 187.7 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
River Derwent | 34 Spills | 187.7 hours | 2.14 The declared body of water receiving this discharge is the "River Derwent" This station discharged sewage 34 time(s) during 2023. The station discharged for a total of 187.7 hour(s). This is around 7 day(s)* or 2.14% of the year.
99.1 | 78.8 hours This monitor was operational for 99.1% of the year. Leaving 78.8 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
Severn Trent Water
Primary Permit #
T/48/00758/O
Secondary Permit #
T/48/00758/O
2022
River Derwent | 23 Spills | 56.1 hours | 0.64 The declared body of water receiving this discharge is the "River Derwent" This station discharged sewage 23 time(s) during 2022. The station discharged for a total of 56.1 hour(s). This is around 2 day(s)* or 0.64% 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
Severn Trent Water
Primary Permit #
T/48/00758/O
Secondary Permit #
T/48/00758/O
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Derwent at Chaddesden
River Derwent at Ambaston
River Derwent at Ambaston Lane
River Derwent at Alvaston
River Derwent at Raynesway
Lower Derwent in Derbyshire
River Derwent at Pride Park and Derby Railway Station
River Derwent at Elvaston Castle Country Park
River Derwent at Little Chester, Eastgate and Cattle Market
River Derwent at Racecourse Park at Chaddesden
River Derwent at Allestree Ford Lane Bridge and Darley Abbey Park
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