River Basins South West North Cornwall Seaton Looe and Fowey Camel St Lawrence Stream Blowing House Lane CSO
St Lawrence Stream at Blowing House 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.
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
1884 hours | 7.16
The declared body of water receiving this discharge is the "St Lawrence Stream"
This station has discharged sewage 192 time(s).
The station has discharged for a total of 1884 hour(s).
This is 7.16% of the time which we have data for.
In total: 78 day(s)* of elapsed time.
79 | 5518.8 hours
This monitor has been operational for 79% of its total time we have data for.
There are 5518.8 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Blowing House Lane CSO" is 2021, discharging sewage for 1815.1 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
58.6 hours | 0.66
The declared body of water receiving this discharge is the "St Lawrence Stream"
This station discharged sewage 53 time(s) during 2023.
The station discharged for a total of 58.6 hour(s).
This is around 2 day(s)* or 0.66% of the year.
The following reasons have been given for the high spill frequency in 2023:
N/A - Ongoing Investigation
The following comments have been given on the station operators intended actions:
N/A - Ongoing Investigation
89.7 | 899.6 hours
This monitor was operational for 89.7% of the year.
Leaving 899.6 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 - Feb
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | South West Water |
| Primary Permit # | 301825 |
| Secondary Permit # | 301825 |
2022
Note: Data is potentially unreliable in 2022
Due to high unavailability of the monitor
St Lawrence Stream | 14 Spills | Due to high unavailability of the monitor
10.2 hours | 0.11
The declared body of water receiving this discharge is the "St Lawrence Stream"
This station discharged sewage 14 time(s) during 2022.
The station discharged for a total of 10.2 hour(s).
This is around 0 day(s)* or 0.11% 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:
N/A - Ongoing Investigation
59 | 3591.6 hours
This monitor was operational for 59% of the year.
Leaving 3591.6 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 - Sep
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | South West Water |
| Primary Permit # | 301825 |
| Secondary Permit # | 301825 |
2021
1815.1 hours | 20.72
The declared body of water receiving this discharge is the "St Lawrence Stream"
This station discharged sewage 125 time(s) during 2021.
The station discharged for a total of 1815.1 hour(s).
This is around 75 day(s)* or 20.72% of the year.
89 | 963.6 hours
This monitor was operational for 89% of the year.
Leaving 963.6 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:
Comms Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2021:
Resolved - April
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | South West Water |
| Primary Permit # | 301825 |
| Secondary Permit # | 301825 |
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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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