Thames Estuary at Crawley Court Gravesend 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
135.6 hours | 0.51
The declared body of water receiving this discharge is the "Thames Estuary"
This station has discharged sewage 99 time(s).
The station has discharged for a total of 135.6 hour(s).
This is 0.51% of the time which we have data for.
In total: 5 day(s)* of elapsed time.
87 | 3416.4 hours
This monitor has been operational for 87% of its total time we have data for.
There are 3416.4 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Crawley Court Gravesend CSO" is 2021, discharging sewage for 72 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
45.3 hours | 0.51
The declared body of water receiving this discharge is the "Thames Estuary"
This station discharged sewage 36 time(s) during 2023.
The station discharged for a total of 45.3 hour(s).
This is around 1 day(s)* or 0.51% of the year.
79.5 | 1795.8 hours
This monitor was operational for 79.5% of the year.
Leaving 1795.8 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:
Power Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2023:
Resolved - May
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Southern Water |
| Primary Permit # | D00074 |
| Secondary Permit # | A113/K/87 |
2022
18.2 hours | 0.2
The declared body of water receiving this discharge is the "Thames Estuary"
This station discharged sewage 22 time(s) during 2022.
The station discharged for a total of 18.2 hour(s).
This is around 0 day(s)* or 0.2% of the year.
85 | 1313.1 hours
This monitor was operational for 85% of the year.
Leaving 1313.1 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:
Power Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2022:
Resolved - Feb
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | Southern Water |
| Primary Permit # | D00074 |
| Secondary Permit # | A113/K/87 |
2021
72 hours | 0.82
The declared body of water receiving this discharge is the "Thames Estuary"
This station discharged sewage 41 time(s) during 2021.
The station discharged for a total of 72 hour(s).
This is around 3 day(s)* or 0.82% 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 | Southern Water |
| Primary Permit # | D00074 |
| Secondary Permit # | A113/K/87 |
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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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