Stroud mayor Amanda Moriarty raised concerns over the viability of the proposed Javelin Park incinerator.
Speaking at a planning inquiry into the project Councillor Morarity questioned the suitability of the incinerator.
Gloucestershire County Council planning committee unanimously rejected Urbaser Balfour Beatty’s application for the incinerator in March 2013.
But the county council had already signed a 25-year contract with UBB for the waste-disposal facility and will consequently have to cover a significant proportion of the company’s costs of appeal.
Councillor Moriarty was speaking on behalf of Stroud Town Council at the inquiry being held at the Hallmark hotel in Matson.
“There are financial considerations that cast into doubt the suitability of this incinerator,” she said.
“Surely the most financially efficient way of dealing with a project like this would have been to first obtain planning permission and then sign a contract for a facility that already had approval.
“Given GCC’s profligacy over this project, for example willing to risk £1million over the cost of an appeal, it could be that there will be similarly lax controls on overruns, future costs and charges for using the incinerator.
Stroud Town Council preferred technology that would maximise recycling, she said.
“We are a town that hugely values all things green, including aspirations for as local and sustainable an economy as possible,” she said.
“We actively support small local businesses at the heart of the town. Our Transition Stroud movement embraces many initiatives, including community agriculture in the Severn Vale, promotion of energy efficient homes and organic gardening.
“Our preference for the processing of municipal waste would be a technology that maximises the recycling of materials, rather than incinerating them.
“We recognise that there needs to be a strategy about waste and our concerns are not about nimbyism but finding the best way to deal with an ongoing issue.”
The 23-day public inquiry has now finished and a decision is expected later this year.