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Llugwy - Conwy To Nantygwryd at Capel Curig Sd.Scheme 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.
Sewage Reports that include this Station
Operational Summary - 2021-2023
Llugwy - Conwy To Nantygwryd | 630 Spills |
11592.2 hours | 44.11


The declared body of water receiving this discharge is the "Llugwy - Conwy To Nantygwryd"
This station has discharged sewage 630 time(s).
The station has discharged for a total of 11592.2 hour(s).
This is 44.11% of the time which we have data for.
In total: 483 day(s)* of elapsed time.

93 | 1839.6 hours
This monitor has been operational for 93% of its total time we have data for.
There are 1839.6 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Capel Curig Sd.Scheme CSO" is 2023, discharging sewage for 4677.5 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 | 237 Spills |
4677.5 hours | 53.39

The declared body of water receiving this discharge is the "Llugwy - Conwy To Nantygwryd"
This station discharged sewage 237 time(s) during 2023.
The station discharged for a total of 4677.5 hour(s).
This is around 194 day(s)* or 53.39% 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

AttributeValue
Governing BodyNatural Resources Wales
OperatorDwr Cymru Welsh Water
Primary Permit #CG0074201
Secondary Permit #CG0074201

2022
Llugwy - Conwy To Nantygwryd | 202 Spills |
3395 hours | 38.75

The declared body of water receiving this discharge is the "Llugwy - Conwy To Nantygwryd"
This station discharged sewage 202 time(s) during 2022.
The station discharged for a total of 3395 hour(s).
This is around 141 day(s)* or 38.75% 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

AttributeValue
Governing BodyNatural Resources Wales
OperatorDwr Cymru Welsh Water
Primary Permit #CG0074201
Secondary Permit #CG0074201

2021
Llugwy - Conwy To Nant Gwryd | 191 Spills |
3519.7 hours | 40.17

The declared body of water receiving this discharge is the "Llugwy - Conwy To Nant Gwryd"
This station discharged sewage 191 time(s) during 2021.
The station discharged for a total of 3519.7 hour(s).
This is around 146 day(s)* or 40.17% of the year.

81.8 | 1586.4 hours
This monitor was operational for 81.8% of the year.
Leaving 1586.4 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:
Data Unreliable From 28/07/2021 To 01/10/2021. Due To Static Telemetry Signal. Instrumentation Task Escalated Through Business As Usual For Instrumentation Defect.


*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 #CG0074201
Secondary Permit #CG0074201


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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
Nearby Flood Warnings
None
Nearby Alert Areas
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Conwy Catchment


Nearby Stations
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