The group, set up with the Welsh Local Government Association, will consist of five AMs and an equivalent number of councillors. An assembly spokesman said that it will not be set up until after the assembly returns from holidays on 8 May, although it would be expected to complete its deliberations by June.
Some AMs are worried that the group could end up allowing a major city such as Cardiff to pay its leaders similar sums to that earmarked for Mr Goodway.
Jonathan Morgan, Conservative AM for south central, said: 'My concern is that the guidelines which this group will recommend will be very broad to allow the top salary to be set at£60,000 or even higher.
First, it would be able to consider whether it should base its recommendations on the salary of a professional person, such as a lawyer or accountant, rather than on the average working wage for Wales used by the Boyne repot.
It will also be able to base its payments on the far greater amount of work that senior councillors will be engaged in under the new cabinet system.
Third, local government secretary Peter Law accepts that councillors deserve a much better deal than Boyne offered them.
Colin Jones, of the Welsh Local Government Association, said: 'There will be a full review taking place of all aspects, including recognising the new responsibilities which councillors will have under the new Local Government Bill.'