A Waterloo mayoral candidate is calling on the premier to hold a referendum on the LRT. 

Former local TV weatherman Dave MacDonald says he will ask Kathleen Wynne to allow voters in the Region of Waterloo to have a "final say" on the transit project. 

Under provincial law a referendum is only binding if at least half of all eligible voters cast their ballot.

Voter turnout in Waterloo Region for the 2010 municipal elections was between 30 and 40 percent.

However, MacDonald says he's confident people will turn out to voice their opinion on the project. 

"If this becomes a question on the ballot, I think the turnout will be far higher than normal," said MacDonald. "Everywhere I go, I run into people, I talk to them about the LRT, and I'm getting the message that they really do want to have a say and the referendum would be something that they would welcome."

Regional councillors will hold a final vote on whether to award the contract to design and build the LRT to Grandlinq on Wednesday.