River Basins . . . Taff - conf Rhondda R to Castle Street Bottom Of Westbourne Crescent CSO, Cardiff
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Taff - Conf Rhondda R To Castle Street at Bottom Of Westbourne Crescent CSO, Cardiff

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
Taff - Conf Rhondda R To Castle Street | 67 Spills |
29.2 hours | 0.11


The declared body of water receiving this discharge is the "Taff - Conf Rhondda R To Castle Street"
This station has discharged sewage 67 time(s).
The station has discharged for a total of 29.2 hour(s).
This is 0.11% of the time which we have data for.
In total: 1 day(s)* of elapsed time.

97.3 | 700.8 hours
This monitor has been operational for 97.3% of its total time we have data for.
There are 700.8 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Bottom Of Westbourne Crescent CSO, Cardiff" is 2021, discharging sewage for 12 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
Taff - Conf Rhondda R To Castle Street | 25 Spills |
11.2 hours | 0.12

The declared body of water receiving this discharge is the "Taff - Conf Rhondda R To Castle Street"
This station discharged sewage 25 time(s) during 2023.
The station discharged for a total of 11.2 hour(s).
This is around 0 day(s)* or 0.12% of the year.

98.6 | 114.7 hours
This monitor was operational for 98.6% of the year.
Leaving 114.7 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyNatural Resources Wales
OperatorDwr Cymru Welsh Water
Primary Permit #AN0086701
Secondary Permit #AN0086701

2022
Taff - Conf Rhondda R To Castle Street | 16 Spills |
6 hours | 0.06

The declared body of water receiving this discharge is the "Taff - Conf Rhondda R To Castle Street"
This station discharged sewage 16 time(s) during 2022.
The station discharged for a total of 6 hour(s).
This is around 0 day(s)* or 0.06% of the year.

95.8 | 363.5 hours
This monitor was operational for 95.8% of the year.
Leaving 363.5 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyNatural Resources Wales
OperatorDwr Cymru Welsh Water
Primary Permit #AN0086701
Secondary Permit #AN0086701

2021
R Taff - Conf Rhondda R To Castle Street | 26 Spills |
12 hours | 0.13

The declared body of water receiving this discharge is the "R Taff - Conf Rhondda R To Castle Street"
This station discharged sewage 26 time(s) during 2021.
The station discharged for a total of 12 hour(s).
This is around 0 day(s)* or 0.13% of the year.

99.3 | 56.9 hours
This monitor was operational for 99.3% of the year.
Leaving 56.9 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyNatural Resources Wales
OperatorDwr Cymru Welsh Water
Primary Permit #AN0086701
Secondary Permit #AN0086701


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Operator comments are presented, unedited, as they were received by us and do not reflect our views or position

Local Information
Station Data Information
Station overseen (meaning either provided, or regulated) by: Natural Resources Wales
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