The firm will begin remediation work - chiefly the removal of asbestos materials - on the buildings beginning next week.
This flood probability was used by consulting engineers to estimate the cost of the remediation work.
"If you want some diversity," he said, "you are going to have to do some remediation work, considering the state of our high schools."
"They were clearly told remediation work must take place on the whole of the site," he said.
Up to four months additional time would be allowed for remediation work, they said.
The main mall structure was demolished, but environmental remediation work still remains.
Water damage occurring during the shut down required remediation work, adding $1 million in cost to the county.
The township then applied for and received a grant to help with the anticipated remediation work.
Following the remediation work, Plainfield was to partner with developers to put the building back into use.
Much of this has changed with the landfill dump on adjacent Garden Island closed in 2000 and remediation work begun.