PAULSBORO - The National Transportation Safety Board has issued a preliminary report on the derailment that released vinyl chloride when seven cars of the 84-car train derailed on Nov. 30. in Gloucester County.

The report says the initial damage estimates provided by Conrail are $721,114, which does not include environmental remediation.

Workers have removed the final tanker car that was part of a freight train. Recovery efforts are now focused on repairing a swivel-style bridge over Mantua Creek in Paulsboro where the accident occurred.

The gas, used to make PVC plastic, led to the evacuation of more than 329 families and businesses. No one was seriously sickened, though dozens were checked out at a hospital.

Federal Railroad Administration officials will inspect the track and the bridge's locking mechanism before the span will reopen.