Mr Lloyd said 60 to 80 per cent of the material would be recyclables like glass bottles and aluminium cans. "That's almost the worst part," he said.
FNDC technical officer Allen Cammell said $14,000 had been allocated for an initial clean-up trial, and if the technique used was cost effective, it will be used at other remote and steep sites.
The technique was normally used to winch logs from steep ravines. Contractors haul smaller items into large sacks, which are craned out and trucked to the Russell transfer station. Larger items, like cars and appliances, will be hauled out individually.
Workers wore sharp-proof clothing, including protective leggings, boots and gloves.
"The gentlemen we have here are very experienced tree planters, so this terrain is their normal workplace," Mr Cammell said.
Nearby farmer Sean Walker had been lobbying the council over the dump and said he was pleased to hear work was starting.
At the start of the year, six people were fined $100 each, due to evidence found in the trash which linked them to it. Contractors were looking for more such evidence.