River Basins Thames Thames AWB Colne Canals and SWT Grand Union Canal, Tring summit to Berkhamstead Berkhamsted Sewage Treatment Works
River Basins . . . Grand Union Canal, Tring summit to Berkhamstead Berkhamsted Sewage Treatment Works
Grand Union Canal at Berkhamsted 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
4061 hours | 15.45
The declared body of water receiving this discharge is the "Grand Union Canal"
This station has discharged sewage 213 time(s).
The station has discharged for a total of 4061 hour(s).
This is 15.45% of the time which we have data for.
In total: 169 day(s)* of elapsed time.
99 | 262.8 hours
This monitor has been operational for 99% of its total time we have data for.
There are 262.8 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Berkhamsted Sewage Treatment Works" is 2021, discharging sewage for 3770.1 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
227.2 hours | 2.59
The declared body of water receiving this discharge is the "Grand Union Canal"
This station discharged sewage 33 time(s) during 2023.
The station discharged for a total of 227.2 hour(s).
This is around 9 day(s)* or 2.59% of the year.
The following reasons have been given for the high spill frequency in 2023:
Performance - Infiltration
The following comments have been given on the station operators intended actions:
Scheduled
99.8 | 15.7 hours
This monitor was operational for 99.8% of the year.
Leaving 15.7 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 # | CATM.3074 |
| Secondary Permit # | WR3075 |
2022
63.7 hours | 0.72
The declared body of water receiving this discharge is the "Grand Union Canal"
This station discharged sewage 12 time(s) during 2022.
The station discharged for a total of 63.7 hour(s).
This is around 2 day(s)* or 0.72% of the year.
The following reasons have been given for the high spill frequency in 2022:
Performance - Gw Inundation
The following comments have been given on the station operators intended actions:
Scheduled
100 | 0 hours
This monitor was operational for 100% of the year.
Leaving 0 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 # | CATM.3075 |
| Secondary Permit # | WR3075 |
2021
3770.1 hours | 43.03
The declared body of water receiving this discharge is the "Grand Union Canal"
This station discharged sewage 168 time(s) during 2021.
The station discharged for a total of 3770.1 hour(s).
This is around 157 day(s)* or 43.03% of the year.
The following reasons have been given for the high spill frequency in 2021:
Performance - Infiltration
The following comments have been given on the station operators intended actions:
N/A - Ongoing Investigation
98.4 | 138.4 hours
This monitor was operational for 98.4% of the year.
Leaving 138.4 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 # | CATM.3075 |
| Secondary Permit # | WR3075 |
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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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