Clean-up crews on Friday continued clearing parts of the Coromandel coastline of fresh debris washed up from the container ship Rena.
Strong winds and waves of up to seven metres have been battering the wreck which grounded on Astrolabe Reef, off Tauranga, on 5 October last year.
The Waikato Regional Council says there has been no sign of oil on beaches in the Coromandel.
So far it has mostly been milk powder, packets of noodles, tiny plastic beads, timber and wheelbarrow wheels landing on Hot Water Beach and Sailors Grave.
Meanwhile, Maritime New Zealand has charged the Daina Shipping company of Greece, which owns the Rena, with discharging harmful substances into a coastal marine area.
