It shall be presumed as a rebuttable presumption of law that a person who causes or allows the release of a hazardous substance shall be liable, without proof of fault, negligence, or causation, for all damages, contamination or pollution within 2,500 feet of the perimeter of the area where the release has occurred. This presumption may be overcome by clear and convincing evidence that the person so charged did not contribute to the damage, contamination or pollution.
35 P.S. § 6020.1109