In a recent decision by the United States Court of Appeals for the Sixth Circuit, Sierra Club v. EPA, Nos. 23-3581/3583 (6th Cir. Dec. 5, 2025), the Court invoked its statutory interpretation authority to hold that EPA contravened the plain language of the Clean Air Act (“CAA”) by redesignating the Detroit area as in attainment with the 2015 ozone National Ambient Air Quality Standards (“NAAQS”). Conversely, the Court deferred to EPA’s technical expertise in determining that certain air emissions should be excluded from consideration of the Detroit area’s compliance with the ozone NAAQS because of their qualification as “exceptional events” under the CAA, demonstrating that Courts will continue to defer to agencies’ expertise, but will not defer to agency interpretations of their enabling statutes. Read More »

Share | Email| Comments|  Topics: Agency Action, Air, Chevron Deference, Clean Air Act, Emissions, EPA, Hazardous Air Pollutants, Loper Bright, Michigan, Sixth Circuit

On June 23, 2023, in MRP Properties Company LLC v. United States, No. 22-1789, 2023 WL 4141227 (6^th Cir. June 15, 2023), the Sixth Circuit decided that despite having directed production at refineries during World War II, the United States government did not qualify as an “operator” of those facilities under CERCLA, providing additional guidance for courts evaluating what kinds of activities subject a party to operator liability.  Read More »

Share | Email| Comments|  Topics: CERCLA, Contribution, Cost Recovery, Michigan, Operator Liability, Potentially Responsible Parties, Refinery, Sixth Circuit, Superfund

That federal agencies enjoy numerous advantages in defending against legal challenges to their administrative decision-making is a fact of administrative law.  But these advantages extend beyond the favorable standards of review that typically apply to their decisions.  An agency can, for example, sometimes short circuit what might be a meritorious appeal by seeking a “voluntary remand” from the Court, thereby potentially affording itself more control over any reconsideration while avoiding creating unfavorable precedent.  As a reminder of this, the Sixth Circuit recently held that EPA was entitled to reconsider one of its Clean Air Act (CAA) rulemakings, namely its decision to remove the air nuisance rule (ANR), a broad standard that generally prohibited nuisance emissions that endangered the “health, safety, or welfare of the public,” from Ohio’s State Implementation Plan (SIP), without the Court vacating EPA’s underlying decision.  Sierra Club et al. v. EPA, No. 21-3057, 2023 WL 1873168, at * 1 (6th Cir. Feb. 10, 2023).    Read More »

Share | Email| Comments|  Topics: Administrative Appeals, Citizen Suit, Clean Air Act, Sixth Circuit, Standing

In Georgia-Pacific Consumer Products LP v. NCR Corporation, the Sixth Circuit confronted a novel question concerning CERCLA’s statutes of limitations: whether a bare declaratory judgment on liability triggers the Section 113(g)(3) three-year limitations period for a contribution claim brought under Section 113(f)(1). The first circuit court to address this issue, the Court answered in the affirmative. Read More »

Share | Email| Comments|  Topics: Allocation, CERCLA, Contribution, Cost Recovery, Declaratory Relief, Michigan, PCBs, Potentially Responsible Parties, Sediment Sites, Sixth Circuit, Statute of Limitations, Superfund

The Sixth Circuit’s recent decision in American Premier Underwriters v. General Electric Company addressed the sometimes murky question under CERCLA of whether the manufacturer of a product is liable as an “arranger” or “operator” when it sells a product that releases hazardous substances into the environment.  __ F.4th __, No. 20-4010, 2021 WL 4272652 (6th Cir. 2021).  In this case, GE had designed, manufactured, and sold transformers and railcars that contained a coolant with PCBs to APU’s predecessor Penn Central Railroad.  The transformers and railcars were specifically designed to “burp” coolant under certain conditions, which had the effect of releasing PCBs into the environment at various railyards.  The court held that, under the facts of the case, GE was neither an “arranger” or “operator.”    Read More »

Share | Email| Comments|  Topics: Arranger Liability, CERCLA, Decisions of Note, Operator Liability, PCBs, Potentially Responsible Parties, Railroad, Sixth Circuit

On March 1, 2021, the U.S. District Court for the Southern District of Ohio issued a ruling denying in part the summary judgment motion of Defendants Ingersoll-Rand and Trane U.S., against whom Plaintiff FIP Realty Co. brought various claims related to the historic release of VOCs on a site now owned by Plaintiff. See Fip Realty Co. v. Ingersoll-Rand Plc, No. 2:19-cv-03291. After acquiring the site out of receivership in 2010, Plaintiff retained several environmental consulting firms and undertook voluntary remediation efforts pursuant to the Ohio Voluntary Action Program (VAP). Six years later Plaintiff submitted a No Further Action (NFA) letter to the Ohio EPA, which in turn issued a Final Order and Covenant releasing Plaintiff from liability at the site as a result of its successful remediation. In 2019 Plaintiff filed the instant lawsuit seeking to recover remediation costs under CERCLA Sections 107(a) and 113(f)(3)(B), and to obtain a declaratory judgment under Section 113(g)(2) that Defendants are liable for all future costs. Defendants moved for summary judgment on various issues, two of which are the subject of disagreement among the federal appellate courts. Read More »

Share | Email| Comments|  Topics: CERCLA, Cleanup, Contribution, Cost Recovery, Groundwater, Ohio, Remediation, Sixth Circuit, Solvents, Statute of Limitations, Superfund

Earlier this month, the United States District Court for the Southern District of Ohio denied motions to dismiss filed by 3M Company, DuPont, Chemours, and other chemical companies in a putative class action lawsuit relating to exposure to PFAS chemicals. Hardwick v. 3M Company, Case No. 2:18-cv-1185 (S.D. Ohio). The court held that the named plaintiff had properly alleged an injury-in-fact for purposes of Article III standing and Ohio law by claiming that he was exposed to PFAS chemicals and that PFAS have been linked to negative health outcomes, despite arguments by the chemical companies that he had not suffered an actual, compensable injury.   Read More »

Share | Email| Comments|  Topics: Class Actions, Medical Monitoring, Ohio, PFAS, Sixth Circuit, Toxic Torts

In a recent decision, the Sixth Circuit Court of Appeals has affirmed that a party who has, without reservation, affirmatively invoked an arbitration provision has waived the right to argue that the provision is unenforceable under the Federal Arbitration Act. The case, PolyOne Corp. v. Westlake Vinyls, Inc., No. 19-5137 (6th Cir. Sep. 6, 2019), dealt with a "unique" agreement partially resolving claims relating to the remediation of an industrial site, known as the B.F. Goodrich Superfund Site, in Calvert City, Kentucky. Read More »

Share | Email| Comments|  Topics: Allocation, Alternative Dispute Resolution, Arbitration, CERCLA, Cleanup, Remediation, Sixth Circuit, Superfund

In Kerns v. Chesapeake Exploration, LLC, No. 18-3636 (6th Cir. Feb. 4, 2019), released on Monday, February 4, the Sixth Circuit Court of Appeals held that a pipeline’s use of Ohio’s forced pooling law is not a taking under the Fourteenth Amendment. This decision, although not recommended for full text publication, is significant as more states enact and/or expand the scope of such laws, and may influence a similar suit brought in Colorado, within the Tenth Circuit, challenging the constitutionality of Colorado’s forced pooling regulations.  Read More »

Share | Email| Comments|  Topics: Deeds, Drilling, Energy, Exploration, Leases, Marcellus Shale, Mineral Rights, Oil and Gas, Royalties, Sixth Circuit, Takings, Takings Clause, Trespass

Last week, the Sixth Circuit Court of Appeals held in two separate cases that the Clean Water Act does not extend liability to pollution that reaches navigable waters via groundwater. Kentucky Waterways All. v. Kentucky Utilities Co., No. 18-5115, 2018 WL 4559315, (6th Cir. Sept. 24, 2018); Tennessee Clean Water Network v. Tennessee Valley Auth., No. 17-6155, 2018 WL 4559103 (6th Cir. Sept. 24, 2018). Instead, the court adopted the bright line rule that for a point source discharge to be actionable under the CWA, it must “dump directly into” navigable waters. The decisions departed from the Fourth and Ninth Circuits’ rulings earlier this year, which held that a “direct hydrological connection” between a discharge and waterbody was sufficient for CWA liability. Our prior blog post on the Fourth Circuit’s decision, Upstate Forever et al. v. Kinder Morgan Energy Partners LP et al., No. 17-1640, 2018 WL 1748154 (4th Cir. April 12, 2018) can be found here. Read More »

Share | Email| Comments|  Topics: Citizen Suit, Clean Water Act, Coal Ash, Contamination, Effluents, Groundwater, Navigability, Rapanos, Sixth Circuit, Water