The River Wensum at Norwich Carrow Road CSO
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
38.5 hours | 0.14
The declared body of water receiving this discharge is the "The River Wensum"
This station has discharged sewage 40 time(s).
The station has discharged for a total of 38.5 hour(s).
This is 0.14% of the time which we have data for.
In total: 1 day(s)* of elapsed time.
81 | 4993.2 hours
This monitor has been operational for 81% of its total time we have data for.
There are 4993.2 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Norwich Carrow Road CSO" is 2021, discharging sewage for 23 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
The River Wensum | 12 Spills | Due to high unavailability of the monitor
8.2 hours | 0.09
The declared body of water receiving this discharge is the "The River Wensum"
This station discharged sewage 12 time(s) during 2023.
The station discharged for a total of 8.2 hour(s).
This is around 0 day(s)* or 0.09% of the year.
51.5 | 4245 hours
This monitor was operational for 51.5% of the year.
Leaving 4245 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:
Comms Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2023:
N/A - Ongoing Investigation
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Anglian Water |
| Primary Permit # | EPREB3296AX |
| Secondary Permit # | EPR/EB3296AX |
2022
7.1 hours | 0.08
The declared body of water receiving this discharge is the "The River Wensum"
This station discharged sewage 11 time(s) during 2022.
The station discharged for a total of 7.1 hour(s).
This is around 0 day(s)* or 0.08% of the year.
95.2 | 419.6 hours
This monitor was operational for 95.2% of the year.
Leaving 419.6 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Anglian Water |
| Primary Permit # | EPREB3296AX |
| Secondary Permit # | EPR/EB3296AX |
2021
23 hours | 0.26
The declared body of water receiving this discharge is the "The River Wensum"
This station discharged sewage 17 time(s) during 2021.
The station discharged for a total of 23 hour(s).
This is around 0 day(s)* or 0.26% of the year.
97 | 262.8 hours
This monitor was operational for 97% of the year.
Leaving 262.8 hours unaccounted for in the data.
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Anglian Water |
| Primary Permit # | EPREB3296AX |
| Secondary Permit # | EPR/EB3296AX |
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Local Information
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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