Sewage outfall costs quadruple to £15m.
Saturday 17th August 2013, 2:30PM BST.
COSTS for ensuring that Guernsey’s sewage can be taken out to sea and dumped have almost quadrupled to £15m.
Public Services had a bid for refurbishing the long sea outfall of £4m. backed by the States in the 2009 capital prioritisation process – an amount it reconfirmed later that year. But it never went ahead with the project, indicating in a January 2012 report which persuaded States members that full sewage treatment was not needed and that the pipe project, now classed as a replacement, would cost £6m. to £8m.
But it has now come forward with costs of £15m. for a new pipe, which will extend 330m further out to sea, and refurbishment of the shorter pipe that is used as a backup.
A department spokesman denied the States decision to reject full sewage treatment would have been influenced by the outfall costs.
‘Even if it could be shown to not be required, the cost of full treatment was estimated to be in the region of £45m. to £55m. in capital investment and then £2m. a year in operating costs. Those dwarf the cost of the outfall replacement now proposed,’ he said.