River Basins Western Wales Conwy Conwy Upper Llugwy - Conwy to Nantygwryd Pentre Ddu CSO, Betws-Y-Coed
River Basins . . . Llugwy - Conwy to Nantygwryd Pentre Ddu CSO, Betws-Y-Coed
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Llugwy - Conwy To Nantygwryd at Pentre Ddu CSO, Betws-Y-Coed

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
Llugwy - Conwy To Nantygwryd | 101 Spills |
534.7 hours | 2.03

The declared body of water receiving this discharge is the "Llugwy - Conwy To Nantygwryd"
This station has discharged sewage 101 time(s).
The station has discharged for a total of 534.7 hour(s).
This is 2.03% of the time which we have data for.
In total: 22 day(s)* of elapsed time.

95.3 | 1226.4 hours
This monitor has been operational for 95.3% of its total time we have data for.
There are 1226.4 hours unaccounted for due to downtime of the monitor.

The worst year in our records for the "Pentre Ddu CSO, Betws-Y-Coed" is 2023, discharging sewage for 322.5 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
Llugwy - Conwy To Nantygwryd | 46 Spills |
322.5 hours | 3.68
The declared body of water receiving this discharge is the "Llugwy - Conwy To Nantygwryd"
This station discharged sewage 46 time(s) during 2023.
The station discharged for a total of 322.5 hour(s).
This is around 13 day(s)* or 3.68% of the year.

92.6 | 648.2 hours
This monitor was operational for 92.6% of the year.
Leaving 648.2 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 #CG0162901
Secondary Permit #CG0162901

2022
Llugwy - Conwy To Nantygwryd | 26 Spills |
71.2 hours | 0.81
The declared body of water receiving this discharge is the "Llugwy - Conwy To Nantygwryd"
This station discharged sewage 26 time(s) during 2022.
The station discharged for a total of 71.2 hour(s).
This is around 2 day(s)* or 0.81% of the year.

97.9 | 178.7 hours
This monitor was operational for 97.9% of the year.
Leaving 178.7 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 #CG0162901
Secondary Permit #CG0162901

2021
Llugwy - Conwy To Nant Gwryd | 29 Spills |
141 hours | 1.6
The declared body of water receiving this discharge is the "Llugwy - Conwy To Nant Gwryd"
This station discharged sewage 29 time(s) during 2021.
The station discharged for a total of 141 hour(s).
This is around 5 day(s)* or 1.6% of the year.

97.2 | 244.4 hours
This monitor was operational for 97.2% of the year.
Leaving 244.4 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 #CG0162901
Secondary Permit #CG0162901

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