Indiana Code Title 13. Environment § 13-30-9-2

Sec. 2. A person may, regardless of whether the person caused or contributed to the release of a hazardous substance or petroleum into the surface or subsurface soil or groundwater that poses a risk to human health and the environment, bring an environmental legal action against a person that caused or contributed to the release to recover reasonable costs of a removal or remedial action involving the hazardous substances or petroleum.