Whilst the skies may be clear today, our drainage system is under stress.
Yesterday saw St Germans Pumping Station discharging 77 cubic metres of water per second. We have never previously needed to pump to this level.
There are still vast quantities of water within our system, being pumped into our system by Internal Drainage Boards and flowing into our system from saturated highland areas.
The weather forecast for overnight tonight is a cause for serious concern, with a worst-case prospect of 30-40mm. Even a more realistic forecast of 10-20mm will cause us issues unless we take further action.
We will deploy the demountable defences for the properties in Benwick as a precautionary measure during daylight today.
We will need to take the water level at St Germans as low as we can without risking bank slips in order to create the gradient in the system to be able to cater for tonight’s forecast rainfall as well as the existing water within the catchment.
For boaters moored in our main drainage system this will unfortunately mean you’ll likely experience levels fluctuating significantly higher and/or lower than normal. This will probably start to be noticeable this afternoon and evening. Please take suitable action to secure your safety.
Should the rainfall forecast materialise then levels will quickly rise and if the rainfall does not materialise then there is sufficient water coming into the system to stabilise the levels again tomorrow.