Quarrying would be pushed away from the heavily-rated sites and pop up at locations under the radar. It could result in aggregate being trucked in from outside the district, and create a barrier to the mining industry the council was hoping to attract.
Mr Cates said charging a roading rate using a land value-based differential made no sense. The roading rate would be better based on tonnage of goods transported, the current road-user charges (RUCs) or a GPS system capturing actual truck movements.
Councillors agreed, but said by law, rates had to be based on land value.
Cr Monty Knight called for a working group to develop a policy for mines and quarries that was sensible and palatable.
"The last place council would want to over-tax is the sector that provides road maintenance and construction," he said.
Mr Cates conceded the rates currently paid by quarries were low, but they did not have the margins to pay the kind of increases the council was proposing. They were, however, prepared to pay their fair share.
Mr Brown said rating on land value was a blunt instrument but was the system chosen by government. The council was seeking ideas from the forest and quarry industries on alternative methods such as charging by weight and distance travelled on council roads, especially as the government was unwilling to share its RUCs income.
Transfield operates five quarries in the Far North, the biggest on Puketona Road, near Paihia. Other submitters on quarry rates included Straterra, the Aggregate and Quarry Association, Fulton Hogan and Imerys Tableware, which operates the china clay quarry at Matauri Bay.