Creecy said a team of specialists had been employed to assess the overall damage caused by the fire. Tests were being done regarding air emissions and water quality.
"The situation at the site is contained and the final specialist reports will be released soon," she said.
"On the basis of the preliminary results, it appears that the impact of the fire was limited. However, this remains subject to final verification by a team of interdepartmental specialists."
Creecy added that SAPS had yet to release their investigation into an arson charge.