River Basins Humber Trent Lower and Erewash Nottinghamshire South B Devon from Source to Smite Alverton Sewage Treatment Works
Tributary River Devon at Alverton Sewage Treatment Works
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
1989.1 hours | 7.56
The declared body of water receiving this discharge is the "Tributary River Devon"
This station has discharged sewage 133 time(s).
The station has discharged for a total of 1989.1 hour(s).
This is 7.56% of the time which we have data for.
In total: 82 day(s)* of elapsed time.
67.6 | 8497.1 hours
This monitor has been operational for 67.6% of its total time we have data for.
There are 8497.19 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Alverton Sewage Treatment Works" is 2022, discharging sewage for 1202.8 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
Tributary River Devon | 42 Spills | Due to high unavailability of the monitor
640 hours | 7.3
The declared body of water receiving this discharge is the "Tributary River Devon"
This station discharged sewage 42 time(s) during 2023.
The station discharged for a total of 640 hour(s).
This is around 26 day(s)* or 7.3% of the year.
The following reasons have been given for the high spill frequency in 2023:
Data Collection - Confirmed Exceptional Weather – Remaining Spills Not Above Soaf Threshold
The following comments have been given on the station operators intended actions:
Resolved - January After Reporting Year
67 | 2890.8 hours
This monitor was operational for 67% of the year.
Leaving 2890.8 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:
Sensor 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 | Severn Trent Water |
| Primary Permit # | T/65/45944/R |
| Secondary Permit # | T/65/45944/R |
2022
Note: Data is potentially unreliable in 2022
Due to high unavailability of the monitor
Tributary River Devon | 79 Spills | Due to high unavailability of the monitor
1202.8 hours | 13.73
The declared body of water receiving this discharge is the "Tributary River Devon"
This station discharged sewage 79 time(s) during 2022.
The station discharged for a total of 1202.8 hour(s).
This is around 50 day(s)* or 13.73% of the year.
The following reasons have been given for the high spill frequency in 2022:
N/A - Ongoing Investigation
The following comments have been given on the station operators intended actions:
Scheduled
53.9 | 4033.1 hours
This monitor was operational for 53.9% of the year.
Leaving 4033.1 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 2022:
Sensor Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2022:
Resolved - Jun
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Severn Trent Water |
| Primary Permit # | T/65/45944/R |
| Secondary Permit # | T/65/45944/R |
2021
146.1 hours | 1.66
The declared body of water receiving this discharge is the "Tributary River Devon"
This station discharged sewage 12 time(s) during 2021.
The station discharged for a total of 146.1 hour(s).
This is around 6 day(s)* or 1.66% of the year.
The following comments have been given on the station operators intended actions:
Scheduled
83.4 | 1447.1 hours
This monitor was operational for 83.4% of the year.
Leaving 1447.1 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:
Sensor Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2021:
Scheduled
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Severn Trent Water |
| Primary Permit # | T/65/45944/R |
| Secondary Permit # | T/65/45944/R |
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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
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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