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.
View Reports that include this Station
Operational Summary - 2021-2024
River Meavy | 629 Spills | 11719.3 hours | 33.42
The declared body of water receiving this discharge is the "River Meavy" This station has discharged sewage 629 time(s). The station has discharged for a total of 11719.3 hour(s). This is 33.42% of the time which we have data for. In total: 488 day(s)* of elapsed time.
78.5 | 7538.7 hours This monitor has been operational for 78.5% of its total time we have data for. There are 7538.76 hours unaccounted for due to downtime of the monitor.
The worst year in our records for the "Gratton Wastewater Treatment Works" is 2022, discharging sewage for 3522.8 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
River Meavy | 161 Spills | 2842 hours | 32.35 The declared body of water receiving this discharge is the "River Meavy" This station discharged sewage 161 time(s) during 2024. The station discharged for a total of 2842 hour(s). This is around 118 day(s)* or 32.35% of the year. The following reasons have been given for the high spill frequency in 2024: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: Operational Improvement Completed
99.7 | 18.4 hours This monitor was operational for 99.7% of the year. Leaving 18.4 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
South West Water
Primary Permit #
302125
Secondary Permit #
302125
2023
River Meavy | 175 Spills | 3347.5 hours | 38.21 The declared body of water receiving this discharge is the "River Meavy" This station discharged sewage 175 time(s) during 2023. The station discharged for a total of 3347.5 hour(s). This is around 139 day(s)* or 38.21% 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
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
South West Water
Primary Permit #
302125
Secondary Permit #
302125
2022
Note: Data is potentially unreliable in 2022 Due to high unavailability of the monitor
River Meavy | 173 Spills | 3522.8 hours | 40.21 The declared body of water receiving this discharge is the "River Meavy" This station discharged sewage 173 time(s) during 2022. The station discharged for a total of 3522.8 hour(s). This is around 146 day(s)* or 40.21% of the year. The following reasons have been given for the high spill frequency in 2022: Not Asset Maintenance - Hydraulic Capacity The following comments have been given on the station operators intended actions: N/A - Hydraulic Capacity
15 | 7446 hours This monitor was operational for 15% of the year. Leaving 7446 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 - Nov
*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 #
302125
Secondary Permit #
302125
2021
River Meavy | 120 Spills | 2006.9 hours | 22.91 The declared body of water receiving this discharge is the "River Meavy" This station discharged sewage 120 time(s) during 2021. The station discharged for a total of 2006.9 hour(s). This is around 83 day(s)* or 22.91% 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
South West Water
Primary Permit #
302125
Secondary Permit #
302125
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