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Limits on three types of PFAS, including what are known as GenX substances found in North Carolina, will be scrapped and reconsidered by the agency, as will a limit on a mixture of several types of PFAS.

The Biden administration’s rule also set standards for the two common types of PFAS, referred to as PFOA and PFOS, at 4 parts per trillion, effectively the lowest level at which they can be reliably detected. The EPA will keep those standards, but give utilities two extra years — until 2031 — to comply.

"We are on a path to uphold the agency’s nationwide standards to protect Americans from PFOA and PFOS in their water. At the same time, we will work to provide common-sense flexibility in the form of additional time for compliance,” said EPA Administrator Lee Zeldin.

The development was first reported by The Washington Post.

Large scale changes and utility pushback

It appears few utilities will be impacted by the withdrawal of limits for certain, newer types of PFAS. So far, utilities are above the Biden administration’s limits. But most utilities face problems with PFOA or PFOS.

Health advocates praised Biden's administration for the limits. But water utilities complained, saying treatment systems are expensive and that customers will end up paying more. The utilities sued the EPA.

The EPA’s actions align with some arguments in the utilities' lawsuit. They argued the EPA lacked authority to regulate a mixture of PFAS and said the agency didn’t properly support limits on several newer types of PFAS that the EPA now plans to rescind. They also sought the two-year extension.

Erik Olson, a senior strategist at the nonprofit Natural Resources Defense Council, said the move is illegal. The Safe Water Drinking Act gives the EPA authority to limit water contaminants, and it includes a provision meant to prevent new rules from being looser than previous ones.

“With a stroke of the pen, EPA is making a mockery of the Trump administration’s promise to deliver clean water for Americans,” Olson said.

President Donald Trump has sought fewer environmental rules and more oil and gas development. EPA Administrator Lee Zeldin has carried out that agenda The EPA plans to loosen regulations for greenhouse gas emissions, cleanup standards for coal plant waste and car emission limits, among many other clean air and water rules.

Zeldin’s history with PFAS is more nuanced; during his time as a New York congressman, he supported legislation to regulate forever chemicals.

Evidence of harm builds and so does the cost

Manufactured by companies like Chemours and 3M, -– among them, helping clothes to withstand rain and ensuring that firefighting foam snuffed out flames. But the chemicals also accumulate in the body. As science advanced in recent years, evidence of harm at far lower levels became clearer.

The Biden-era EPA estimated the rule will cost about $1.5 billion to implement each year. Water utility associations say the costs, combined with recent mandates to , will raise residents’ bills and fall hardest on small communities with few resources.

The Biden administration did work to address cost concerns. The Bipartisan Infrastructure Law provided $9 billion for chemicals like PFAS, utilities have against PFAS polluters.

Utilities see partial relief, activists see a backslide

Some utilities have been surprised to find out they are over limits. And small water providers might struggle with compliance costs and expertise.

“This gives water pros more time to deal with the ones we know are bad, and we are going to need more time. Some utilities are just finding out now where they stand,” said Mike McGill, president of WaterPIO, a water industry communications firm.

Some utilities wanted a higher limit on PFOA and PFOS, according to Mark White, drinking water leader at the engineering firm CDM Smith. He suspects the utility industry will continue to sue over those limits. ��������al groups will likely file challenges, too.

Melanie Benesh, vice president of government affairs at the nonprofit ��������al Working Group, said utilities may not have to install treatment that's as broadly effective if they just have to focus on two types of older PFAS.

“You really reduce what utilities have to do to make sure that the other, newer generation PFAS are captured” she said.

When the Biden administration announced its rule, the head of the EPA traveled to North Carolina and was introduced by activist Emily Donovan, who said she was grateful for the first federal standards. She had long campaigned for tougher rules for GenX substances that had contaminated a local river.

Now the EPA says it will roll back those GenX limits.

“This current administration promised voters it would ‘Make America Healthy Again’ but rescinding part of the PFAS drinking water standards does no such thing,” she said.

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