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
Cotton Brook | 19 Spills | 32.5 hours | 0.12
The declared body of water receiving this discharge is the "Cotton Brook" This station has discharged sewage 19 time(s). The station has discharged for a total of 32.5 hour(s). This is 0.12% of the time which we have data for. In total: 1 day(s)* of elapsed time.
97.6 | 613.1 hours This monitor has been operational for 97.6% of its total time we have data for. There are 613.19 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Harrington St/Holcombe St CSO" is 2023, discharging sewage for 31.2 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
Cotton Brook | 14 Spills | 31.2 hours | 0.35 The declared body of water receiving this discharge is the "Cotton Brook" This station discharged sewage 14 time(s) during 2023. The station discharged for a total of 31.2 hour(s). This is around 1 day(s)* or 0.35% of the year.
99.4 | 52.5 hours This monitor was operational for 99.4% of the year. Leaving 52.5 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/48/21251/O
Secondary Permit #
T/48/21251/O
2022
Cotton Brook | 4 Spills | 1.1 hours | 0.01 The declared body of water receiving this discharge is the "Cotton Brook" This station discharged sewage 4 time(s) during 2022. The station discharged for a total of 1.1 hour(s). This is around 0 day(s)* or 0.01% of the year. The following reasons have been given for the high spill frequency in 2022: N/A - Ongoing Investigation The following comments have been given on the station operators intended actions: Scheduled
96.5 | 301.3 hours This monitor was operational for 96.5% of the year. Leaving 301.3 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/48/21251/O
Secondary Permit #
T/48/21251/O
2021
Cotton Brook | 1 Spills | 0.1 hours | 0 The declared body of water receiving this discharge is the "Cotton Brook" This station discharged sewage 1 time(s) during 2021. The station discharged for a total of 0.1 hour(s). This is around 0 day(s)* or 0% of the year. The following comments have been given on the station operators intended actions: Scheduled
98.6 | 117.3 hours This monitor was operational for 98.6% of the year. Leaving 117.3 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/48/21251/O
Secondary Permit #
T/48/21251/O
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Local Information
Nearby Flood Warnings
Lower Derwent in Derbyshire
Nearby Alert Areas
River Derwent at Chaddesden
River Derwent at Ambaston
River Derwent at Ambaston Lane
River Derwent at Alvaston
River Derwent at Raynesway
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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