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Afan - Confluence With Pelenna To Tidal Limit at CSO No 115 Scotts Yard Cwmafan

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
Afan - Confluence With Pelenna To Tidal Limit | 179 Spills |
1264.2 hours | 4.81


The declared body of water receiving this discharge is the "Afan - Confluence With Pelenna To Tidal Limit"
This station has discharged sewage 179 time(s).
The station has discharged for a total of 1264.2 hour(s).
This is 4.81% of the time which we have data for.
In total: 52 day(s)* of elapsed time.

98.3 | 438 hours
This monitor has been operational for 98.3% of its total time we have data for.
There are 438 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "CSO No 115 Scotts Yard Cwmafan" is 2021, discharging sewage for 764.5 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 - Confluence With Pelenna To Tidal Limit | 30 Spills |
160.2 hours | 1.82

The declared body of water receiving this discharge is the "Afan - Confluence With Pelenna To Tidal Limit"
This station discharged sewage 30 time(s) during 2023.
The station discharged for a total of 160.2 hour(s).
This is around 6 day(s)* or 1.82% of the year.

97.9 | 181.3 hours
This monitor was operational for 97.9% of the year.
Leaving 181.3 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 #BW0200101
Secondary Permit #BW0200101

2022
Afan - Confluence With Pelenna To Tidal Limit | 52 Spills |
339.5 hours | 3.87

The declared body of water receiving this discharge is the "Afan - Confluence With Pelenna To Tidal Limit"
This station discharged sewage 52 time(s) during 2022.
The station discharged for a total of 339.5 hour(s).
This is around 14 day(s)* or 3.87% of the year.

99.5 | 36.7 hours
This monitor was operational for 99.5% of the year.
Leaving 36.7 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 #BW0200101
Secondary Permit #BW0200101

2021
Afon Afan | 97 Spills |
764.5 hours | 8.72

The declared body of water receiving this discharge is the "Afon Afan"
This station discharged sewage 97 time(s) during 2021.
The station discharged for a total of 764.5 hour(s).
This is around 31 day(s)* or 8.72% of the year.

99.4 | 50.8 hours
This monitor was operational for 99.4% of the year.
Leaving 50.8 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 #BW0200101
Secondary Permit #BW0200101


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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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