The chair of Te Papa museum in Wellington says he won't be standing down, following protesters calling for him to be removed from his position.
A small group of people gathered at the museum today, and handed a letter to the museum calling for Evan Williams to be stood down.
They say a development of his in North Auckland is causing dirt and sediment to run into the harbour, and the Long Bay Okura marine reserve.
The group's leader, Geoff Reid, said he and others had had enough of the development causing sediment to go into the Long Bay Okura marine reserve and choking marine life.
"Whenever it rains we've got untreated sediment flowing into streams and flowing directly into a marine reserve.
"The marine reserve is part of the Hauraki Gulf, it's a really special place for New Zealanders and it's a refuge for our wildlife."
But Mr Williams said the development was compliant with council standards, and had worked hard protecting waterways in the area.
"We've spent more than $3 million on ponds, dams, treatment systems, streamlinings, silt fences, all of the kind of things that you need to do to stop sediment getting to the sea."
Mr Williams said he had a long track record of building environmentally sensitive properties.