The River Yare at Norwich Sandy Lane 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.

Sewage Reports that include this Station

Operational Summary - 2021-2023

The River Yare | 271 Spills |
4805.7 hours | 18.28

The declared body of water receiving this discharge is the "The River Yare"
This station has discharged sewage 271 time(s).
The station has discharged for a total of 4805.7 hour(s).
This is 18.28% of the time which we have data for.
In total: 200 day(s)* of elapsed time.

77.3 | 5956.8 hours
This monitor has been operational for 77.3% of its total time we have data for.
There are 5956.8 hours unaccounted for due to downtime of the monitor.

The worst year in our records for the "Norwich Sandy Lane CSO" is 2021, discharging sewage for 4669.5 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 Yare | 62 Spills |
136.1 hours | 1.55
The declared body of water receiving this discharge is the "The River Yare"
This station discharged sewage 62 time(s) during 2023.
The station discharged for a total of 136.1 hour(s).
This is around 5 day(s)* or 1.55% 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

55.7 | 3877.1 hours
This monitor was operational for 55.7% of the year.
Leaving 3877.1 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 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 #	EPREB3296WM
Secondary Permit #	EPR/EB3296WM

2022

The River Yare | 0 Spills |
0 hours | 0
The declared body of water receiving this discharge is the "The River Yare"
This station discharged sewage 0 time(s) during 2022.
The station discharged for a total of 0 hour(s).
This is around 0 day(s)* or 0% 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

78.7 | 1861.5 hours
This monitor was operational for 78.7% of the year.
Leaving 1861.5 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 2022:
Installation Set-Up/Design Issue

The following description has been given for downtime related actions intended, or taken, by the operator in 2022:
Resolved - Dec

*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 #	EPREB3296WM
Secondary Permit #	EPR/EB3296WM

2021

The River Yare | 209 Spills |
4669.5 hours | 53.3
The declared body of water receiving this discharge is the "The River Yare"
This station discharged sewage 209 time(s) during 2021.
The station discharged for a total of 4669.5 hour(s).
This is around 194 day(s)* or 53.3% 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 - Hydraulic Capacity

99.1 | 76.2 hours
This monitor was operational for 99.1% of the year.
Leaving 76.2 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 #	EPREB3296WM
Secondary Permit #	EPR/EB3296WM

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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

The River Yare from Barnham Broom to the A11 at Cringleford

Station Data Information

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