An EMS worker ups peopl from Granitevile get out of a truck that has just brought them into the decontamination area at USC Aiken in Aiken Thursday Jan. 6, 2005.  RON COCKERILLE/STAFF

An EMS worker directs two people brought in for decontamination to where they have to go at USC Aiken  in Aiken Thursday Jan 6, 2005.  RON COCKERILLE/STAFF

Thom Berry, spokesman foe DEHC, gives an update to media as to what chemicals were involved in Ther early morning accident in Graniteville in Aiken Thursday Jan. 6, 2004.  RON COCKERILLE/STAFF

An emergency worker has his air tank replaced as he prepares to head back to Garniteville  in Aiken Thursday Jan. 6, 2004.  RON COCKERILLE/STAFF

Graniteville residents wait at USC Aiken to be decontaminated in Aiken Thursday Jan. 6, 2005.  RON COCKERILLE/STAFFLE/STAFF

Hazardous material workers head to the scene where two  Norfolk Southern freight trains collided early Thursday, Jan. 6, 2005, in Grantville, S.C., spilling a hazardous chemical and sending dozens of people to a decontamination site in Aiken. (AP Photo/Ailen Standard, Michael Gibbons)