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.
Sewage Reports that include this Station
Operational Summary - 2021-2023
Grasmere Lake | 321 Spills | 5892.2 hours | 22.42
The declared body of water receiving this discharge is the "Grasmere Lake" This station has discharged sewage 321 time(s). The station has discharged for a total of 5892.2 hour(s). This is 22.42% of the time which we have data for. In total: 245 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 "Grasmere WWTW" is 2023, discharging sewage for 2532 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
Grasmere Lake | 105 Spills | 2532 hours | 28.9 The declared body of water receiving this discharge is the "Grasmere Lake" This station discharged sewage 105 time(s) during 2023. The station discharged for a total of 2532 hour(s). This is around 105 day(s)* or 28.9% of the year. The following reasons have been given for the high spill frequency in 2023: Performance - Asset Configuration (E.G. Ps/Rising Main/Storm Tanks) The following comments have been given on the station operators intended actions: N/A - Ongoing Investigation
98.7 | 107.7 hours This monitor was operational for 98.7% of the year. Leaving 107.7 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
United Utilities
Primary Permit #
017370027
Secondary Permit #
17370027
2022
Grasmere Lake | 126 Spills | 2012.3 hours | 22.97 The declared body of water receiving this discharge is the "Grasmere Lake" This station discharged sewage 126 time(s) during 2022. The station discharged for a total of 2012.3 hour(s). This is around 83 day(s)* or 22.97% of the year. The following reasons have been given for the high spill frequency in 2022: Performance - Asset Configuration (E.G. Ps/Rising Main/Storm Tanks) The following comments have been given on the station operators intended actions: N/A - Ongoing Investigation
99.9 | 3.5 hours This monitor was operational for 99.9% of the year. Leaving 3.5 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 #
017370027
Secondary Permit #
17370027
2021
Grasmere Lake | 90 Spills | 1347.8 hours | 15.38 The declared body of water receiving this discharge is the "Grasmere Lake" This station discharged sewage 90 time(s) during 2021. The station discharged for a total of 1347.8 hour(s). This is around 56 day(s)* or 15.38% 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 #
017370027
Secondary Permit #
17370027
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Local Information
Nearby Flood Warnings
None
Nearby Alert Areas
River Rothay at Grasmere, Broadgate, College Street and Town End
River Rothay at Grasmere, White Bridge and Stock Lane
Rivers in Ambleside, Rothay Road, Compston Road, Millans Park, Kirkfield, Fisher Beck
Rivers in Ambleside, Rydal Road, Kirkfield, Rothay Park, Fisher Beck, The Borrans
Station overseen (meaning either provided, or regulated) by: The Environment Agency 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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