The Supremes Weigh in on Superfund and the Clean Water Act

Margaret Anne Hill, Frank L. Tamulonis III, and Stephen C. Zumbrun

Notwithstanding that the Comprehensive Environmental Response, Compensation, and Liability Act (more commonly known as “Superfund”) has been around for 40 years, and the fact that numerous cases have made their way to the U.S. Supreme Court analyzing liability under the Act, debates continue as to who can be a Superfund “potentially responsible party” or a “PRP.” For those who still do not get the scope and reach of Superfund liability, the Supreme Court has, once again, provided a clear response with respect to liability under the Act in an April 20, 2020, decision, Atlantic Richfield Co. v. Christian et al. In that case, the Court reaffirmed its position set forth in a 2007 case, United States v. Atlantic Research Corp., 551 U. S. 128, 136 (2007), that even parties whose property has been contaminated by others, and who are innocent with respect to the contamination, fall within the broad definition of liable parties under Section 107(a) of Superfund (which uses the term “covered persons”), subject to the third-party defense set forth in Section 107 (b).

Atlantic Richfield involved a group of 98 property owners who filed claims against Atlantic Richfield in Montana state court in connection with the Anaconda Copper Smelter Superfund Site in Butte, Montana, a 300-square-mile site contaminated with arsenic and lead. The property owners’ claims included trespass, nuisance, and strict liability claims under state common law. The landowners sought restoration damages, among other forms of relief, which was the issue before the Court since Atlantic Richfield conceded that Superfund preserves claims for other types of compensatory damages under state law, including loss of use and enjoyment of property, diminution of value, incidental and consequential damages, and annoyance and discomfort. The property owners sought to implement a remedial restoration plan that exceeded the U.S. Environmental Protection Agency’s (“EPA”) selected remedial actions. The question regarding their PRP status was before the Court in the context of determining if they were prohibited from taking further remedial action without EPA’s approval under Section 122(e)(6). Continue reading “The Supremes Weigh in on Superfund and the Clean Water Act”