Mr Quayle attempted to clarify the reasons why there was a hole in the wall at Glen Road and why further holes appeared.

He told members a hole was put in the wall on July 29, ’wide enough to allow an excavator to go into the stream was put in further up to allow a salmon, not a catchment area, but to allow them to migrate up the stream’.

He said: ’This should have started slightly earlier but high rains in that month meant they could not start.

’Lower down the river actually burst the wall just above the weir and, as a result of the water coming into that area, people on the site then made a hole in the wall lower down to let that water go back into the stream rather than carry on down the road.’