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Afan - Headwaters To Confluence With Corrwg at CSO 107 Below Alder Terrace Afan

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
Afan - Headwaters To Confluence With Corrwg | 160 Spills |
276.7 hours | 1.05


The declared body of water receiving this discharge is the "Afan - Headwaters To Confluence With Corrwg"
This station has discharged sewage 160 time(s).
The station has discharged for a total of 276.7 hour(s).
This is 1.05% of the time which we have data for.
In total: 11 day(s)* of elapsed time.

96.6 | 875.9 hours
This monitor has been operational for 96.6% of its total time we have data for.
There are 875.99 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "CSO 107 Below Alder Terrace Afan" is 2021, discharging sewage for 101.5 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
Afan - Headwaters To Confluence With Corrwg | 49 Spills |
79.7 hours | 0.91

The declared body of water receiving this discharge is the "Afan - Headwaters To Confluence With Corrwg"
This station discharged sewage 49 time(s) during 2023.
The station discharged for a total of 79.7 hour(s).
This is around 3 day(s)* or 0.91% of the year.

99.1 | 72.7 hours
This monitor was operational for 99.1% of the year.
Leaving 72.7 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 #BP0028605
Secondary Permit #BP0028605

2022
Afan - Headwaters To Confluence With Corrwg | 55 Spills |
95.5 hours | 1.09

The declared body of water receiving this discharge is the "Afan - Headwaters To Confluence With Corrwg"
This station discharged sewage 55 time(s) during 2022.
The station discharged for a total of 95.5 hour(s).
This is around 3 day(s)* or 1.09% of the year.

92.1 | 691.1 hours
This monitor was operational for 92.1% of the year.
Leaving 691.1 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 #BP0028605
Secondary Permit #BP0028605

2021
Afan - Headwaters To Confluence With C | 56 Spills |
101.5 hours | 1.15

The declared body of water receiving this discharge is the "Afan - Headwaters To Confluence With C"
This station discharged sewage 56 time(s) during 2021.
The station discharged for a total of 101.5 hour(s).
This is around 4 day(s)* or 1.15% of the year.

99.4 | 49.9 hours
This monitor was operational for 99.4% of the year.
Leaving 49.9 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 #BP0028605
Secondary Permit #BP0028605


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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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