River Basins Ganol WWTW (STW) Glan Conwy Corner
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Ganol WWTW (STW) Glan Conwy Corner

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
Coastal Waters Of Penrhyn Bay | 1043 Spills |
5989 hours | 22.78


The declared body of water receiving this discharge is the "Coastal Waters Of Penrhyn Bay"
This station has discharged sewage 1043 time(s).
The station has discharged for a total of 5989 hour(s).
This is 22.78% of the time which we have data for.
In total: 249 day(s)* of elapsed time.

99 | 262.8 hours
This monitor has been operational for 99% of its total time we have data for.
There are 262.8 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Ganol WWTW (STW) Glan Conwy Corner" is 2021, discharging sewage for 3037.5 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
330 Spills |
1676.5 hours | 19.13

This station discharged sewage 330 time(s) during 2023.
The station discharged for a total of 1676.5 hour(s).
This is around 69 day(s)* or 19.13% of the year.

99.8 | 17.5 hours
This monitor was operational for 99.8% of the year.
Leaving 17.5 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 #CG0377701
Secondary Permit #CG0377701

2022
349 Spills |
1275 hours | 14.55

This station discharged sewage 349 time(s) during 2022.
The station discharged for a total of 1275 hour(s).
This is around 53 day(s)* or 14.55% of the year.

99.7 | 24.5 hours
This monitor was operational for 99.7% of the year.
Leaving 24.5 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 #CG0377701
Secondary Permit #CG0377701

2021
Coastal Waters Of Penrhyn Bay | 364 Spills |
3037.5 hours | 34.67

The declared body of water receiving this discharge is the "Coastal Waters Of Penrhyn Bay"
This station discharged sewage 364 time(s) during 2021.
The station discharged for a total of 3037.5 hour(s).
This is around 126 day(s)* or 34.67% of the year.

99.8 | 16.6 hours
This monitor was operational for 99.8% of the year.
Leaving 16.6 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 #CG0377701
Secondary Permit #CG0377701


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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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