Tributary Of Carden Brook at CSO Tilston Sewage Treatment Works
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.
The declared body of water receiving this discharge is the "Tributary Of Carden Brook" This station has discharged sewage 107 time(s). The station has discharged for a total of 204 hour(s). This is 0.77% of the time which we have data for. In total: 8 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 "CSO Tilston Sewage Treatment Works" is 2021, discharging sewage for 139.5 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
Tributary Of Carden Brook | 31 Spills | 48.7 hours | 0.55 The declared body of water receiving this discharge is the "Tributary Of Carden Brook" This station discharged sewage 31 time(s) during 2023. The station discharged for a total of 48.7 hour(s). This is around 2 day(s)* or 0.55% of the year.
98.5 | 130.5 hours This monitor was operational for 98.5% of the year. Leaving 130.5 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
Dwr Cymru Welsh Water
Primary Permit #
CM0021602
Secondary Permit #
CM0021602
2022
Tributary Of Carden Brook | 23 Spills | 15.7 hours | 0.17 The declared body of water receiving this discharge is the "Tributary Of Carden Brook" This station discharged sewage 23 time(s) during 2022. The station discharged for a total of 15.7 hour(s). This is around 0 day(s)* or 0.17% 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
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
Dwr Cymru Welsh Water
Primary Permit #
CM0021602
Secondary Permit #
CM0021602
2021
Tributary Of Carden Brook | 53 Spills | 139.5 hours | 1.59 The declared body of water receiving this discharge is the "Tributary Of Carden Brook" This station discharged sewage 53 time(s) during 2021. The station discharged for a total of 139.5 hour(s). This is around 5 day(s)* or 1.59% of the year. The following comments have been given on the station operators intended actions: N/A - Ongoing Investigation
99.8 | 10.5 hours This monitor was operational for 99.8% of the year. Leaving 10.5 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
Dwr Cymru Welsh Water
Primary Permit #
CM0021602
Secondary Permit #
CM0021602
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
Mill Brook at Tattenhall
River Dee catchment in England from Whitchurch to Chester
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