On August 26, 2022, the US Environmental Protection Agency (EPA) released a pre-publication copy of its much-anticipated proposed rule adding perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) to the list of “hazardous substances” under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund). EPA asserts that this regulatory escalation of PFOA and PFOS will facilitate faster cleanup of contaminated sites and reduce exposures to these “forever chemicals.” If finalized, these hazardous substances designations will have significant and immediate impacts on many industries, from creating new reporting obligations to increased compliance, enforcement, and litigation risks related to site cleanup. EPA’s efforts involving PFOA and PFOS fall within the broader, whole-of-agency approach to addressing PFAS first announced in its PFAS Strategic Roadmap and represent its first ever exercise of its authority under CERCLA section 102(a) to designate a hazardous substance.
EPA’s Proposed Rule
EPA proposes amending Part 302 of the CERCLA regulations to add PFOA and PFOS, including their salts and structural isomers, to the list of hazardous substances, a change with significant impacts on cleanup of these compounds in the environment. The potentially affected industries include: PFOA/PFOS manufacturers, importers, and processors; manufacturers of products containing PFOA/PFOS; importers of articles containing PFOA/PFOS; downstream product makers and users of PFOA/PFOS products; and waste management and wastewater treatment facilities.
If finalized, EPA expects that the pace of site remediation for PFOA/PFOS contaminated sites should increase significantly for two primary reasons: 1) EPA will be able to require cleanup by issuing administrative orders at sites where PFOA/PFOS is the only contaminant, and 2) EPA, other federal agencies, and private parties will be able to recover site cleanup costs for PFOA and PFOS releases from potentially responsible parties. While EPA treats these as indirect effects of the rulemaking, they are undoubtedly the most impactful result of this action.
EPA identifies the immediate, direct effects of the rulemaking as: 1) new reporting requirements to the National Response Center (NRC) and other authorities within 24 hours of known releases of at least one pound of PFOA or PFOS by a vessel or facility, 2) entities selling or transferring federally-owned property must provide notice about on-site PFOA/PFOS storage, release, or disposal and warrant that remedial action has been or will be taken on any hazardous substances on the property, either before or after the transaction, and 3) a requirement that the US Department of Transportation (DOT) list PFOA and PFOS as hazardous materials under the Hazardous Materials Transportation Act.
Scientific Basis for Listing PFOA/PFOS
In order to list a “hazardous substance,” CERCLA section 102(a) requires that EPA determine “when released into the environment [it] may present a substantial danger to the public health or welfare or the environment.” The proposal relies on the “totality of the evidence” for potential adverse effects from PFOA and PFOS exposures to make this finding. Human health effects cited by EPA include high cholesterol, changes in liver enzymes, decreased immune response to vaccination, thyroid disorders, testicular cancer, kidney cancer, liver cancer, and pregnancy-induced hypertension and preeclampsia. EPA anticipates long-lasting environmental contamination – and resulting human exposure leading to these health effects –will continue due to PFOA and PFOS’s “environmental persistence, formation from precursor compounds, continued production by international manufacturers and possible domestic production, and as a result of the large legacy production in the United States.”
Impacts of PFOA and PFOS Hazardous Substance Designations
If finalized, this proposed rule will open the floodgates to Superfund liability for actual or potential PFOA and PFOS releases and activate the full panoply of powerful CERCLA enforcement authorities. As previously reported, the significant implications of a hazardous substance designation for PFOA and PFOS designation could include the following:
- The likely addition of more sites to the National Priorities List. As EPA and the regulated community have experienced, PFAS chemicals are being detected at a variety of sites, including sites with no history of PFAS use or disposal. EPA’s enforcement-first approach to Superfund sites will likely continue at sites with PFOA or PFOS if there are potentially responsible parties;
- The potential disruption to ongoing remediation activities at thousands of sites that currently are, or may become, Superfund sites, as well as added complexity and costs if parties are required to utilize different treatment technologies to address PFOA and PFOS impacts;
- The possible reopener of existing Superfund sites if EPA finds that previously undertaken remedial actions are no longer protective during its five-year reviews, with the potential to put even redeveloped sites back into the CERCLA cleanup process; and
- The significant rise in expensive and disruptive Superfund litigation that would result from any associated EPA Section 106 cleanup orders or Section 107 cost recovery actions or private party Section 113 contribution actions. Given the draconian nature of CERCLA’s strict, and joint and several, liability scheme, even entities and industries that might have contributed minimally to PFOA or PFOS contamination at a particular site would be affected.
This proposed rule, coupled with EPA’s recently published near-zero health advisories that recommend levels below available detection or treatment methods, may further drive site-specific cleanup standards for PFOA and PFOS.
Economically Significant Rulemaking
Cost estimates for this rulemaking provided by stakeholders ranged from $11 billion to $22 billion for private party compliance costs, and corresponding annualized private party PFOA/PFOS cleanup costs at non-federal sites between $700 and $800 million.
After some questions about EPA’s intent to assess the full costs and benefits of the rulemaking to the economy, the White House Office of Management and Budget (OMB) ultimately deemed the rule “economically significant,” which requires a full discussion of indirect costs and benefits in a not-yet-released Economic Assessment of the Potential Costs and Other Impacts of the Proposed Rulemaking to Designate Perfluorooctanoic Acid and Perfluorooctanesulfonic Acid as Hazardous Substances. “Economically significant” rules are those expected to impose costs of $100 million or more annually.
EPA’s proposed interpretation of CERCLA section 102(a) is that the Agency is precluded from considering costs when designating a hazardous substance. EPA distinguishes the proposed rule’s potential direct and indirect economic impact by only accounting for minimal increases in reporting costs in the proposal. EPA suggests the larger – presumably indirect – costs of additional cleanup are not being created but merely “shifted” from the public to potentially responsible parties. The proposal asserts, however, that site cleanup costs remain unquantifiable at this preliminary stage, as hazardous substance designations do not automatically compel either EPA or private parties to undertake contingent, discretionary, and site-specific response actions. This assertion ignores that EPA’s near-zero health advisories and heightened focus on PFAS, combined with the growing amount of data state regulators are collecting on levels of PFAS in the environment, will almost certainly result in EPA prioritizing sites with PFOA and PFOS releases for CERCLA response actions and enforcement.
Opportunity for Stakeholder Input
Affected stakeholders must provide comments to EPA within 60 days of the proposed rule’s forthcoming publication in the Federal Register. Stakeholders may wish to consider providing input focusing on the following:
- EPA’s interpretation of its CERCLA section 102(a) authority to designate as “hazardous” substances which, when released, “may present substantial danger” to the public health or welfare or the environment;
- EPA’s reliance on supporting materials, such as the 2016 EPA Heath Effects Support Documents for PFOA/PFOS;
- EPA’s conclusions as to the frequency, nature, and geographic scope of PFOA/PFOS releases into the environment, fate and transport of the substances once released, potential human exposure, or other technical matters;
- EPA’s interpretation of CERCLA section 102(a) to preclude consideration of cost; and
- Strategies to improve access to reporting data expected to be collected for communities with environmental justice concerns.
Future similar actions for other PFAS are also forthcoming, as EPA intends to issue an advanced notice of proposed rulemaking later this year that will consider designating additional PFAS as hazardous substances under CERCLA.
Hunton Andrews Kurth LLP’s environmental team has the legal knowledge and scientific background required to address PFAS- and CERCLA-related regulatory and compliance challenges. Our natural resource and chemical attorneys work together with our firm’s in-house scientists and policy advisors to create comprehensive strategies for our clients nationwide.
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- utility
- vapor intrusion
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Authors
- Yaniel Abreu
- Elizabeth E. Aldridge
- Walter J. Andrews
- John J. Beardsworth, Jr.
- Nancy B. Beck, PhD, DABT
- Jordan L. Bernstein
- Timothy E. Biller
- George Borovas
- Lawrence J. Bracken II
- Shannon S. Broome
- Karma B. Brown
- Samuel L. Brown
- F. William Brownell
- Courtney Cochran Butler
- Julia J. Casciotti
- Michelle G. Chan
- E. Carter Chandler Clements
- Abigail Contreras
- Benjamin Y. Cooper IV
- Christopher J. Cunio
- Alexandra B. Cunningham
- Andrea DeField
- Meredith Doswell
- Douglas L. Dua
- Deidre G. Duncan
- Frederick R. Eames
- Clare Ellis
- Latosha M. Ellis
- Susan S. Failla
- Geoffrey B. Fehling
- Andrea Field
- Hannah Flint
- Steven C. Friend
- Kevin E. Gaunt
- Andrew G. Geyer
- Erin Grisby
- Elisabeth R. Gunther
- Steven M. Haas
- Alexandra Hamilton
- Patrick Jamieson
- Kevin W. Jones
- Dan J. Jordanger
- Ryan T. Ketchum
- Sami M. Khan
- Jonathan H. Kim
- Scott H. Kimpel
- Charles H. Knauss
- Garrett Kral
- J. Pierce Lamberson
- Lucinda Minton Langworthy
- Jaclyn E. Lee
- Matthew Z. Leopold
- Charlotte Leszinske
- Brian R. Levey
- Michael S. Levine
- Elbert Lin
- Eric R. Link
- Nash E. Long
- David S. Lowman, Jr.
- Phyllis H. Marcus
- Jeffrey N. Martin
- Lorelie S. Masters
- Patrick M. McDermott
- Kerry L. McGrath
- Robert J. McNamara
- Michael J. Messonnier, Jr.
- Jennifer MikoLevine
- Todd S. Mikolop
- Angela Morrison
- Michael J. Mueller
- Eric J. Murdock
- Ted J. Murphy
- William L. Newton
- Henry V. Nickel
- Paul T. Nyffeler, PhD
- Peter K. O’Brien
- G. Michael O’Leary
- Evangeline C. Paschal
- Kate Perkins
- Shemin V. Proctor
- Shawn Patrick Regan
- Myles F. Reynolds
- Doris Rodríguez
- Brent A. Rosser
- Christian Rudloff
- Rachel Saltzman
- Arthur E. Schmalz
- Penny A. Shamblin
- Michael R. Shebelskie
- George P. Sibley, III
- Joseph C. Stanko
- Martin P. Stratte
- Javaneh S. Tarter
- Thomas W. Taylor
- Patricia Tiller
- Linda Trees
- Andrew J. Turner
- Emily Burkhardt Vicente
- Gregory R. Wall
- Thomas R. Waskom
- Malcolm C. Weiss
- Michelle-Ann C. Williams
- Susan F. Wiltsie