River Basins . . . Nant Morlais - source to conf R Taff Brewers Arms CSO, Balaclava Rd, Dowlais
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Nant Morlais - Source To Conf R Taff at Brewers Arms CSO, Balaclava Rd, Dowlais

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
Nant Morlais - Source To Conf R Taff | 42 Spills |
15 hours | 0.05


The declared body of water receiving this discharge is the "Nant Morlais - Source To Conf R Taff"
This station has discharged sewage 42 time(s).
The station has discharged for a total of 15 hour(s).
This is 0.05% of the time which we have data for.
In total: 0 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 "Brewers Arms CSO, Balaclava Rd, Dowlais" is 2023, discharging sewage for 7.2 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
Nant Morlais - Source To Conf R Taff | 18 Spills |
7.2 hours | 0.08

The declared body of water receiving this discharge is the "Nant Morlais - Source To Conf R Taff"
This station discharged sewage 18 time(s) during 2023.
The station discharged for a total of 7.2 hour(s).
This is around 0 day(s)* or 0.08% of the year.

94.1 | 510.7 hours
This monitor was operational for 94.1% of the year.
Leaving 510.7 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 #AN0230601
Secondary Permit #AN0230601

2022
Nant Morlais - Source To Conf R Taff | 18 Spills |
5.5 hours | 0.06

The declared body of water receiving this discharge is the "Nant Morlais - Source To Conf R Taff"
This station discharged sewage 18 time(s) during 2022.
The station discharged for a total of 5.5 hour(s).
This is around 0 day(s)* or 0.06% of the year.

99.9 | 3.5 hours
This monitor was operational for 99.9% of the year.
Leaving 3.5 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 #AN0230601
Secondary Permit #AN0230601

2021
Nant Morlais - Source To Conf R Taff | 6 Spills |
2.2 hours | 0.02

The declared body of water receiving this discharge is the "Nant Morlais - Source To Conf R Taff"
This station discharged sewage 6 time(s) during 2021.
The station discharged for a total of 2.2 hour(s).
This is around 0 day(s)* or 0.02% of the year.

99.4 | 51.6 hours
This monitor was operational for 99.4% of the year.
Leaving 51.6 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 #AN0230601
Secondary Permit #AN0230601


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