Canterbury Regional Council is confident earthquake rubble stockpiled at an unauthorised dump in Christchurch will be removed.
Businesses in Sydenham expressed concern after demolition operator Skelly Holdings dumped the rubble at a site in Cass Street.
The council says the company did not have the necessary consents to manage the discharge to air and the impact on storm water.
It has issued an abatement notice requiring the dumping to stop and told the company to remove the pile within four weeks.
It says there will be consequences under the Resource Management Act if dumping continues.
The council says other operators were also setting up potentially unauthorised activities and it has now made it clear which consents are needed.