Milford Haven Inner at SPS At St Ishmaels WWTW
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.
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
2815.7 hours | 10.71
The declared body of water receiving this discharge is the "Milford Haven Inner"
This station has discharged sewage 171 time(s).
The station has discharged for a total of 2815.7 hour(s).
This is 10.71% of the time which we have data for.
In total: 117 day(s)* of elapsed time.
68.3 | 8322 hours
This monitor has been operational for 68.3% of its total time we have data for.
There are 8322 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "SPS At St Ishmaels WWTW" is 2021, discharging sewage for 1980.2 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
Note: Data is potentially unreliable in 2023
Due to high unavailability of the monitor
Milford Haven Inner | 19 Spills | Due to high unavailability of the monitor
359.2 hours | 4.1
The declared body of water receiving this discharge is the "Milford Haven Inner"
This station discharged sewage 19 time(s) during 2023.
The station discharged for a total of 359.2 hour(s).
This is around 14 day(s)* or 4.1% of the year.
8.3 | 8026.7 hours
This monitor was operational for 8.3% of the year.
Leaving 8026.7 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 2023:
Sensor Failure / Issue
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | BG0011502 |
| Secondary Permit # | BG0011502 |
2022
476.2 hours | 5.43
The declared body of water receiving this discharge is the "Milford Haven Inner"
This station discharged sewage 42 time(s) during 2022.
The station discharged for a total of 476.2 hour(s).
This is around 19 day(s)* or 5.43% of the year.
99.9 | 0.8 hours
This monitor was operational for 99.9% of the year.
Leaving 0.8 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | BG0011502 |
| Secondary Permit # | BG0011502 |
2021
1980.2 hours | 22.6
The declared body of water receiving this discharge is the "St Ishmaels Stream - Hw To Tidal Limit, Monk Ha"
This station discharged sewage 110 time(s) during 2021.
The station discharged for a total of 1980.2 hour(s).
This is around 82 day(s)* or 22.6% of the year.
98.5 | 126.1 hours
This monitor was operational for 98.5% of the year.
Leaving 126.1 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | Natural Resources Wales |
| Operator | Dwr Cymru Welsh Water |
| Primary Permit # | BG0011502 |
| Secondary Permit # | BG0011502 |
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Local Information
Station Data Information
Station overseen (meaning either provided, or regulated) by: Natural Resources Wales
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Please note that FloodMapper does not verify or check the accuracy of the data provided by third parties. The data is used as received from the source. Any underlying errors, inconsistencies, or inaccuracies in the original data will be reflected in the information presented on our platform. Users are advised to exercise their own judgment and caution when using the data for decision-making purposes.
Information about our data sources and licenses can be found
The information displayed here is used under license. We are not affiliated with any governing, or other, bodies. Nor do they necessarily endorse us, or us them.
Please note that FloodMapper does not verify or check the accuracy of the data provided by third parties. The data is used as received from the source. Any underlying errors, inconsistencies, or inaccuracies in the original data will be reflected in the information presented on our platform. Users are advised to exercise their own judgment and caution when using the data for decision-making purposes.
Information about our data sources and licenses can be found
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