Tributary Of Hilden Brook at Hawden Road Tonbridge 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.
The declared body of water receiving this discharge is the "Tributary Of Hilden Brook" This station has discharged sewage 105 time(s). The station has discharged for a total of 668.2 hour(s). This is 2.54% of the time which we have data for. In total: 27 day(s)* of elapsed time.
71.3 | 7533.6 hours This monitor has been operational for 71.3% of its total time we have data for. There are 7533.6 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Hawden Road Tonbridge CSO" is 2023, discharging sewage for 362.5 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 Hilden Brook | 47 Spills | 362.5 hours | 4.13 The declared body of water receiving this discharge is the "Tributary Of Hilden Brook" This station discharged sewage 47 time(s) during 2023. The station discharged for a total of 362.5 hour(s). This is around 15 day(s)* or 4.13% of the year.
90.4 | 840.9 hours This monitor was operational for 90.4% of the year. Leaving 840.9 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
Southern Water
Primary Permit #
A00454
Secondary Permit #
A454/K/89
2022
Tributary Of Hilden Brook | 48 Spills | 269.3 hours | 3.07 The declared body of water receiving this discharge is the "Tributary Of Hilden Brook" This station discharged sewage 48 time(s) during 2022. The station discharged for a total of 269.3 hour(s). This is around 11 day(s)* or 3.07% of the year.
99.9 | 0.8 hours This monitor was operational for 99.9% of the year. Leaving 0.8 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
Southern Water
Primary Permit #
A00454
Secondary Permit #
A454/K/89
2021
Note: Data is potentially unreliable in 2021 Due to high unavailability of the monitor
Tributary Of Hilden Brook | 10 Spills | 36.3 hours | 0.41 The declared body of water receiving this discharge is the "Tributary Of Hilden Brook" This station discharged sewage 10 time(s) during 2021. The station discharged for a total of 36.3 hour(s). This is around 1 day(s)* or 0.41% of the year.
25 | 6570 hours This monitor was operational for 25% of the year. Leaving 6570 hours unaccounted for in the data. This falls below the 90% threshold where a reason should be given
The following reasons have been given for the downtime in 2021: Power Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2021: Resolved - November
*This is total time in days, not individual days of the year.
Permit & Governance
Attribute
Value
Governing Body
The Environment Agency
Operator
Southern Water
Primary Permit #
A00454
Secondary Permit #
A454/K/89
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Medway between Penshurst and Leigh
River Teise and Lesser Teise area from Horsmonden to Yalding
River Medway at Leigh Village
River Medway, Alder Stream, Coult Stream and River Bourne at East Peckham
River Medway, River Teise and River Beult at Yalding
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