River Basins Penrhyndeudraeth CSO
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Glaslyn at Penrhyndeudraeth 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
Glaslyn | 363 Spills |
3080.2 hours | 11.72


The declared body of water receiving this discharge is the "Glaslyn"
This station has discharged sewage 363 time(s).
The station has discharged for a total of 3080.2 hour(s).
This is 11.72% of the time which we have data for.
In total: 128 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 "Penrhyndeudraeth CSO" is 2023, discharging sewage for 1483.7 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
Glaslyn | 160 Spills |
1483.7 hours | 16.93

The declared body of water receiving this discharge is the "Glaslyn"
This station discharged sewage 160 time(s) during 2023.
The station discharged for a total of 1483.7 hour(s).
This is around 61 day(s)* or 16.93% of the year.

99.9 | 6.1 hours
This monitor was operational for 99.9% of the year.
Leaving 6.1 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 #CG0359101
Secondary Permit #CG0359101

2022
Glaslyn | 88 Spills |
616.2 hours | 7.03

The declared body of water receiving this discharge is the "Glaslyn"
This station discharged sewage 88 time(s) during 2022.
The station discharged for a total of 616.2 hour(s).
This is around 25 day(s)* or 7.03% of the year.

99.9 | 7 hours
This monitor was operational for 99.9% of the year.
Leaving 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 #CG0359101
Secondary Permit #CG0359101

2021
Un-Named Tributary Dwyryd Estuary | 115 Spills |
980.2 hours | 11.19

The declared body of water receiving this discharge is the "Un-Named Tributary Dwyryd Estuary"
This station discharged sewage 115 time(s) during 2021.
The station discharged for a total of 980.2 hour(s).
This is around 40 day(s)* or 11.19% 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 #CG0359101
Secondary Permit #CG0359101


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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
None
Nearby Stations
No nearby stations
 
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