A new report shows the estimated cost of planned upgrades to Regina’s wastewater treatment plant has risen by more than $50 million.

The report to the city’s executive committee says the upgrades are now estimated to cost $207 million, plus or minus 15 per cent.

The City of Regina says the initial estimate of $153 million has gone up due to inflation in construction costs.

City council will consider options early in the new year.

Construction is slated to begin in 2014 and is expected to wrap up in 2016.