River Basins North West Mersey Upper Bollin Dean Mersey Upper Mersey (upstream of Manchester Ship Canal) Outside 91 Styal Road CSO
Gatley Brook Via Sws at Outside 91 Styal Road 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 - 2021-2024
354 hours | 1
The declared body of water receiving this discharge is the "Gatley Brook Via Sws"
This station has discharged sewage 130 time(s).
The station has discharged for a total of 354 hour(s).
This is 1% of the time which we have data for.
In total: 14 day(s)* of elapsed time.
95.5 | 1577.8 hours
This monitor has been operational for 95.5% of its total time we have data for.
There are 1577.88 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Outside 91 Styal Road CSO" is 2021, discharging sewage for 142.4 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 - 2024
76 hours | 0.86
The declared body of water receiving this discharge is the "Gatley Brook Via Sws"
This station discharged sewage 22 time(s) during 2024.
The station discharged for a total of 76 hour(s).
This is around 3 day(s)* or 0.86% of the year.
The following reasons have been given for the high spill frequency in 2024:
High Spill Threshold Not Met
The following comments have been given on the station operators intended actions:
Operational Improvement Ongoing
88.7 | 989.9 hours
This monitor was operational for 88.7% of the year.
Leaving 989.9 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 2024:
Comms Failure / Issue
The following description has been given for downtime related actions intended, or taken, by the operator in 2024:
Resolved - Feb
*This is total time in days, not individual days of the year.
Permit & Governance
| Attribute | Value |
|---|---|
| Governing Body | The Environment Agency |
| Operator | United Utilities |
| Primary Permit # | 01STK0048 |
| Secondary Permit # | STK0048 |
2023
85.5 hours | 0.97
The declared body of water receiving this discharge is the "Gatley Brook Via Sws"
This station discharged sewage 39 time(s) during 2023.
The station discharged for a total of 85.5 hour(s).
This is around 3 day(s)* or 0.97% of the year.
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 | United Utilities |
| Primary Permit # | 01STK0048 |
| Secondary Permit # | STK0048 |
2022
50 hours | 0.57
The declared body of water receiving this discharge is the "Gatley Brook Via Surface Water Sewer"
This station discharged sewage 23 time(s) during 2022.
The station discharged for a total of 50 hour(s).
This is around 2 day(s)* or 0.57% of the year.
94.3 | 499.3 hours
This monitor was operational for 94.3% of the year.
Leaving 499.3 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 | United Utilities |
| Primary Permit # | 01STK0048 |
| Secondary Permit # | STK0048 |
2021
142.4 hours | 1.62
The declared body of water receiving this discharge is the "Gatley Brook Via Sws"
This station discharged sewage 46 time(s) during 2021.
The station discharged for a total of 142.4 hour(s).
This is around 5 day(s)* or 1.62% 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
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 | United Utilities |
| Primary Permit # | 01STK0048 |
| Secondary Permit # | STK0048 |
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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
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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