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.
Operational Summary - 2021-2023
River Wandle | 1 Spills | 0.8 hours | 0
The declared body of water receiving this discharge is the "River Wandle" This station has discharged sewage 1 time(s). The station has discharged for a total of 0.8 hour(s). This is 0% of the time which we have data for. In total: 0 day(s)* of elapsed time.
98.3 | 438 hours This monitor has been operational for 98.3% of its total time we have data for. There are 438 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "CSO At Penwith Road" is 2021, discharging sewage for 0.8 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 Wandle | 0 Spills | 0 hours | 0 The declared body of water receiving this discharge is the "River Wandle" This station discharged sewage 0 time(s) during 2023. The station discharged for a total of 0 hour(s). This is around 0 day(s)* or 0% of the year.
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
Thames Water
Primary Permit #
TEMP.2841
Secondary Permit #
TEMP.2841
2022
River Wandle | 0 Spills | 0 hours | 0 The declared body of water receiving this discharge is the "River Wandle" This station discharged sewage 0 time(s) during 2022. The station discharged for a total of 0 hour(s). This is around 0 day(s)* or 0% of the year.
99.9 | 4.3 hours This monitor was operational for 99.9% of the year. Leaving 4.3 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
Thames Water
Primary Permit #
TEMP.2841
Secondary Permit #
TEMP.2841
2021
River Wandle | 1 Spills | 0.8 hours | 0 The declared body of water receiving this discharge is the "River Wandle" This station discharged sewage 1 time(s) during 2021. The station discharged for a total of 0.8 hour(s). This is around 0 day(s)* or 0% of the year.
97.4 | 225.1 hours This monitor was operational for 97.4% of the year. Leaving 225.1 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
Thames Water
Primary Permit #
TEMP.2841
Secondary Permit #
TEMP.2841
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
Norbury Brook at Thornton Heath and Streatham Vale
River Wandle at Wandsworth
Groundwater flooding in the Caterham Bourne catchment
River Wandle at Morden
River Graveney at Tooting and Colliers Wood
River Wandle at Wimbledon
River Wandle at Beddington Park
River Wandle area in the London Boroughs of Wandsworth, Merton, Lambeth, Croydon and Sutton
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