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.
The declared body of water receiving this discharge is the "Milford Haven Inner" This station has discharged sewage 61 time(s). The station has discharged for a total of 331 hour(s). This is 1.25% of the time which we have data for. In total: 13 day(s)* of elapsed time.
97.3 | 700.8 hours This monitor has been operational for 97.3% of its total time we have data for. There are 700.8 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Hook WWTW" is 2021, discharging sewage for 287 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
Milford Haven Inner | 9 Spills | 34.5 hours | 0.39 The declared body of water receiving this discharge is the "Milford Haven Inner" This station discharged sewage 9 time(s) during 2023. The station discharged for a total of 34.5 hour(s). This is around 1 day(s)* or 0.39% of the year.
99.9 | 2.6 hours This monitor was operational for 99.9% of the year. Leaving 2.6 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 #
BN0000402
Secondary Permit #
BN0000402
2022
Milford Haven Inner | 8 Spills | 9.5 hours | 0.1 The declared body of water receiving this discharge is the "Milford Haven Inner" This station discharged sewage 8 time(s) during 2022. The station discharged for a total of 9.5 hour(s). This is around 0 day(s)* or 0.1% of the year.
100 | 0 hours This monitor was operational for 100% of the year. Leaving 0 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 #
BN0000402
Secondary Permit #
BN0000402
2021
Sprinkle Pill - Hw To Tl, Cleddau Es | 44 Spills | 287 hours | 3.27 The declared body of water receiving this discharge is the "Sprinkle Pill - Hw To Tl, Cleddau Es" This station discharged sewage 44 time(s) during 2021. The station discharged for a total of 287 hour(s). This is around 11 day(s)* or 3.27% of the year.
93 | 610.5 hours This monitor was operational for 93% of the year. Leaving 610.5 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 #
BN0000402
Secondary Permit #
BN0000402
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Station overseen (meaning either provided, or regulated) by: Natural Resources Wales 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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