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Dulais - Headwaters To Confluence With River Neath at Ys.March Crynant Swo 2c

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
Dulais - Headwaters To Confluence With River Neath | 519 Spills |
5696.5 hours | 21.67


The declared body of water receiving this discharge is the "Dulais - Headwaters To Confluence With River Neath"
This station has discharged sewage 519 time(s).
The station has discharged for a total of 5696.5 hour(s).
This is 21.67% of the time which we have data for.
In total: 237 day(s)* of elapsed time.

91.6 | 2189.9 hours
This monitor has been operational for 91.6% of its total time we have data for.
There are 2189.99 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Ys.March Crynant Swo 2c" is 2023, discharging sewage for 2909.7 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
Dulais - Headwaters To Confluence With River Neath | 198 Spills |
2909.7 hours | 33.21

The declared body of water receiving this discharge is the "Dulais - Headwaters To Confluence With River Neath"
This station discharged sewage 198 time(s) during 2023.
The station discharged for a total of 2909.7 hour(s).
This is around 121 day(s)* or 33.21% of the year.

94.5 | 480.9 hours
This monitor was operational for 94.5% of the year.
Leaving 480.9 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 #BW2900701
Secondary Permit #BW2900701

2022
Dulais - Headwaters To Confluence With River Neath | 140 Spills |
1625 hours | 18.55

The declared body of water receiving this discharge is the "Dulais - Headwaters To Confluence With River Neath"
This station discharged sewage 140 time(s) during 2022.
The station discharged for a total of 1625 hour(s).
This is around 67 day(s)* or 18.55% of the year.

93.2 | 588.6 hours
This monitor was operational for 93.2% of the year.
Leaving 588.6 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 #BW2900701
Secondary Permit #BW2900701

2021
Dulais - Headwaters To Confluence With River Ne | 181 Spills |
1161.7 hours | 13.26

The declared body of water receiving this discharge is the "Dulais - Headwaters To Confluence With River Ne"
This station discharged sewage 181 time(s) during 2021.
The station discharged for a total of 1161.7 hour(s).
This is around 48 day(s)* or 13.26% of the year.

88.7 | 982.8 hours
This monitor was operational for 88.7% of the year.
Leaving 982.8 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:
Communications Issue - Escalated Through Business As Usual Process For Communications Failures.


*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 #BW2900701
Secondary Permit #BW2900701


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Local Information
Station Data Information
Station overseen (meaning either provided, or regulated) by: Natural Resources Wales
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