Items found include polystyrene, bubble wrap and clothing
Douglas Council says 'contamination' in its cardboard waste skips is 'unacceptable'.
The local authority says it can have a 'massive impact' on the running of the service.
Items found included polystyrene, bubble wrap and clothing after the skips were emptied at the processing plant.
The council is asking residents to make sure that 'all materials' are in the correct skips.