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Thames at Windsor

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
Thames | 201 Spills |
2115.8 hours | 8.05


The declared body of water receiving this discharge is the "Thames"
This station has discharged sewage 201 time(s).
The station has discharged for a total of 2115.8 hour(s).
This is 8.05% of the time which we have data for.
In total: 88 day(s)* of elapsed time.

98 | 525.6 hours
This monitor has been operational for 98% of its total time we have data for.
There are 525.6 hours unaccounted for due to downtime of the monitor.


The worst year in our records for the "Windsor" is 2023, discharging sewage for 993.3 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
Thames | 87 Spills |
993.3 hours | 11.33

The declared body of water receiving this discharge is the "Thames"
This station discharged sewage 87 time(s) during 2023.
The station discharged for a total of 993.3 hour(s).
This is around 41 day(s)* or 11.33% of the year.

The following reasons have been given for the high spill frequency in 2023:
Not Asset Maintenance - Hydraulic Capacity

The following comments have been given on the station operators intended actions:
N/A - Hydraulic Capacity

99.6 | 32.4 hours
This monitor was operational for 99.6% of the year.
Leaving 32.4 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorThames Water
Primary Permit #TEMP.3014
Secondary Permit #TEMP.3014

2022
Thames | 44 Spills |
378.4 hours | 4.31

The declared body of water receiving this discharge is the "Thames"
This station discharged sewage 44 time(s) during 2022.
The station discharged for a total of 378.4 hour(s).
This is around 15 day(s)* or 4.31% of the year.

The following reasons have been given for the high spill frequency in 2022:
Not Asset Maintenance - Hydraulic Capacity

The following comments have been given on the station operators intended actions:
N/A - Hydraulic Capacity

99.7 | 26.2 hours
This monitor was operational for 99.7% of the year.
Leaving 26.2 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorThames Water
Primary Permit #TEMP.3014
Secondary Permit #TEMP.3014

2021
Thames | 70 Spills |
744 hours | 8.49

The declared body of water receiving this discharge is the "Thames"
This station discharged sewage 70 time(s) during 2021.
The station discharged for a total of 744 hour(s).
This is around 31 day(s)* or 8.49% of the year.

The following reasons have been given for the high spill frequency in 2021:
Not Asset Maintenance - Hydraulic Capacity

The following comments have been given on the station operators intended actions:
N/A - Ongoing Investigation

96.7 | 283.8 hours
This monitor was operational for 96.7% of the year.
Leaving 283.8 hours unaccounted for in the data.


*This is total time in days, not individual days of the year.

Permit & Governance

AttributeValue
Governing BodyThe Environment Agency
OperatorThames Water
Primary Permit #TEMP.3014
Secondary Permit #TEMP.3014


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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
Nearby Flood Warnings
None
Nearby Alert Areas
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River Thames at Old Windsor


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River Thames at Wraysbury


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Moorings and properties closest to the River Thames between Maidenhead, Windsor and Eton


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Groundwater flooding in East Maidenhead


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Properties closest to the River Thames at Wraysbury from Old Windsor Weir to Magna Carta Island


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Properties closest to the River Thames at Old Windsor, from Friday Island to Magna Carta Island


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Properties closest to the River Thames at Datchet from Black Potts Bridge to Albert Bridge


Station Data Information
Station overseen (meaning either provided, or regulated) by: The Environment Agency
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