In an officers' report the council admits risk of fraud could be increased and the present site operator says the proposed system would be impossible to police.
Changes relate to Tidy Tips throughout the county set up to take only domestic waste, as required under the Environmental Protection Act 1990. The council now plans to allow commercial waste to be dumped alongside household waste and charge users commercial rates.
According to the paper there are already suspicions that companies are secretly and illegally tipping commercial waste, from office paper to building rubble, on the sites.
But Ron Miller, managing director of M&M Recycling, which took over management of the tips two years ago says the problem will get worse if council plans go ahead, with hazardous waste dumping becoming a problem - and the possibility of pay-offs to dump commercial rubbish on domestic sites.
'If this system was imposed on us, we would simply walk away from the contract. It would make our job impossible', added Mr Miller.