Off-Island Boreholes To Be Improved

borehole coverFour boreholes supplying drinking water for St Agnes and five on St Martin’s are to be improved to bring them into line with national water regulations.

They currently lie flush with the surface of the ground and are protected by a manhole cover.

An Environment Agency risk assessment showed they were at risk of contamination by flooding, and can allow vermin and other wildlife to get in.

Cattle can also come into contact with them.

The Duchy stated in their application that the work was imperative to ensure a safe supply to the off-islands in the future.

The lining of each bore will now be raised to at least 30cm above the ground and surrounded by a 2m square concrete plinth.

There’ll also be a 1.2m high wooden fence built around each one to keep out livestock.

It’s hoped that vegetation will grow quickly to screen each site from view.

But the plan may be delayed as at least one of the holes, just North of the Seven Stones Inn, is within an archaeologically sensitive area and will require Scheduled Monument Consent from English Heritage.

The work was approved subject to obtaining the necessary permits.

Earlier this year, the government announced that Scilly was to be brought under existing regulations regarding water supplies that apply elsewhere in England and Wales.