River Basins Thames Maidenhead and Sunbury Thames Lower Thames (Egham to Teddington) CSO At Portsmouth/Uxbridge Road
River Thames at CSO At Portsmouth/Uxbridge Road
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
18.6 hours | 0.07
The declared body of water receiving this discharge is the "River Thames"
This station has discharged sewage 15 time(s).
The station has discharged for a total of 18.6 hour(s).
This is 0.07% of the time which we have data for.
In total: 0 day(s)* of elapsed time.
93.3 | 1752 hours
This monitor has been operational for 93.3% of its total time we have data for.
There are 1752 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "CSO At Portsmouth/Uxbridge Road" is 2021, discharging sewage for 10.4 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
5.4 hours | 0.06
The declared body of water receiving this discharge is the "River Thames"
This station discharged sewage 5 time(s) during 2023.
The station discharged for a total of 5.4 hour(s).
This is around 0 day(s)* or 0.06% of the year.
97.8 | 190.9 hours
This monitor was operational for 97.8% of the year.
Leaving 190.9 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Thames Water |
| Primary Permit # | TEMP.2843 |
| Secondary Permit # | TEMP.2843 |
2022
2.7 hours | 0.03
The declared body of water receiving this discharge is the "River Thames"
This station discharged sewage 3 time(s) during 2022.
The station discharged for a total of 2.7 hour(s).
This is around 0 day(s)* or 0.03% of the year.
98 | 168.1 hours
This monitor was operational for 98% of the year.
Leaving 168.1 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Thames Water |
| Primary Permit # | TEMP.2843 |
| Secondary Permit # | TEMP.2843 |
2021
10.4 hours | 0.11
The declared body of water receiving this discharge is the "River Thames"
This station discharged sewage 7 time(s) during 2021.
The station discharged for a total of 10.4 hour(s).
This is around 0 day(s)* or 0.11% of the year.
85.6 | 1256.1 hours
This monitor was operational for 85.6% of the year.
Leaving 1256.1 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:
Comms Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2021:
Resolved - July
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Thames Water |
| Primary Permit # | TEMP.2843 |
| Secondary Permit # | TEMP.2843 |
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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
Station Data Information
Station overseen (meaning either provided, or regulated) by: The Environment Agency
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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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