The Environmental Protection Agency is telling environmentalists it will start a rulemaking that could limit fluorination of plastic containers, making another attempt at regulating the coating technology after a federal court in March blocked its earlier attempt.
EPA told Earthjustice and other groups in a July 10 letter that it was accepting a petition they made in April that asked the agency to use the Toxic Substances Control Act to ban a coating process for high density polyethylene containers that EPA says releases toxic PFAS chemicals into the environment.
In the letter, EPA said it also wanted to know about alternative manufacturing technologies that didn't use a fluorination coating process.
The EPA letter comes after the agency in March lost an attempt to limit Houston-based Inhance Coating Technologies LLC's fluorination process for coating HDPE containers.
Three judges on the U.S. Court of Appeals for the Fifth Circuit in New Orleans ruled unanimously March 21 that EPA exceeded its authority when it issued a December enforcement order against Inhance, telling the company to shut down or change its process.
The court said the EPA erred in using Section 5 of TSCA, allowing for faster action. But the environmental and public health groups asked the EPA to reopen proceedings to regulate the processes under Section 6 of TSCA.
The court's March decision did not limit the EPA from acting under Section 6.
In the July 10 letter Michal Freedhoff, EPA's assistant administrator for chemical safety and pollution prevention, said the petitioners pointed to studies from EPA and others to indicate risks from the fluorination process.
"The petition, taken together with information reasonably available to the EPA, sets forth facts establishing that it is necessary to initiate an appropriate proceeding under TSCA Section 6 to address PFOA, PFNA, and PFDA formed during the fluorination of plastic containers," Freedhoff wrote. "The petitioners submitted sufficient evidence to show that PFOA, PFNA, and PFDA formed during the fluorination of plastic containers presents risk of concern."
Freedhoff's letter said that when EPA begins its more formal rulemaking, it will ask interested parties for information on the number, location and uses of fluorinated containers in the U.S., along with alternatives to fluorination and what could be done to address risks from the three PFAS compounds leaching into the environment or into products.
The letter said that EPA's acceptance of the petition does not signal that will make any particular final decision.