Mr Philip Kwesi Nkrumah, Sekondi-Takoradi Metropolitan Chief Executive said waste disposal was a major challenge confronting the assembly.
He said the only way out was for collaboration among the members to increase revenue generation from waste disposal to meet the increasing expenditure on waste disposal.
Mr Nkrumah was answering questions at the third meeting of the second session of the assembly at Sekondi.
The assembly members complained about the poor service provided by some private waste contractors in the metropolis.
They contended that while some of the companies collected refuse periodically, others collected some and left the rest and such practices had led to spill-over at most refuse dumps making the "dump and pay concept" introduced by the assembly ineffective.
The assembly members stressed the need to intensify monitoring and supervision of the contractors to enable them adhere to their work schedules.
Mr Nkrumah urged the assembly members to inform the assembly on problems they had with the contractors because it generated 20 per cent from waste revenue and spent 60 per cent.
He said the assembly was indebted to some contractors for about six to eight months.