Chemours Seeks EPA Clearance for an AI Data-Center Coolant. Clean Cape Fear Wants a No.

Same week, same company, same river: Chemours settles nearly $600 million in Cape Fear PFAS damages and asks the EPA to clear a new fluorinated coolant for AI servers. The settlement is not Opteon money. The coolant filing does not pay for wells.

On the riverbank at Battleship North Carolina in Wilmington, Attorney General Jeff Jackson and DEQ Secretary Reid Wilson announced Sept. 10 what DEQ frames as a nearly $600 million PFAS settlement with Chemours, DuPont, and Corteva. Jackson called it the largest environmental damage payment in state history. That deal covers legacy Fayetteville Works GenX and PFAS contamination and related damages.

Across town in the regulatory ether, Chemours is seeking EPA approval for Opteon 2P50, a dielectric fluid for two-phase immersion cooling of high-density AI servers. The product is not commercially available in the United States while regulators review premanufacture notice P-26-0071. The bridge between them is company, river, and timing. Nothing else.

The settlement, by the numbers

DEQ's structure: $455 million guaranteed to the state and 11 local parties over 10 to 15 years, plus a $135 million DuPont and Corteva reserve to backstop 2019 consent-order work if Chemours cannot pay. $590 million total in that framing. WECT has used about $600 million; Carolina Journal has led with $455 million. Both are defensible, and the difference should be labeled, not smoothed over.

Of the $455 million: $75 million to the state, about $55 million into an Emerging Contaminant Mitigation Fund, and $380 million among the locals. New Hanover County Chair LeAnn Pierce said the county gets $22.8 million over 10 years, aimed first at clean drinking water and private-well households. CFPUA is not a party, and its 2017 suit continues. No contractor is named for the new New Hanover dollars, and no AI or novel treatment vendor is sourced for this announcement.

Jackson, in the DEQ release: "Chemours made this mess, and we're making sure Chemours cleans it up."

Pierce, to Carolina Journal: the suit "was never simply about money," and the board intends to use the funds to address the problem itself, "starting with the people who rely on private wells who have carried this burden the longest."

Clean Cape Fear co-founder Emily Donovan told Port City Daily the $590 million figure is "low-balling." SELC senior attorney Jean Zhuang said it is not the end of the story, citing planned expansion, groundwater contamination, and ongoing releases of ultra short-chain PFAS into drinking water supplies. That's the only sourced line that lightly rhymes with the Opteon degradation debate, and it does not name Opteon.

The coolant fight

Chemours announced Opteon 2P50 in 2023 and lined up manufacturing with Navin Fluorine in India, with capacity expected to begin in 2026. On an Aug. 5 call, CEO Denise Dignam said two-phase sales were still "nominal for sampling," and that today's commercial data-center liquid cooling is single-phase. "That's all upside," she said of the market.

To WECT, Chemours said two-phase liquid cooling "offers the highest heat transfer efficiency among available cooling technologies and can help meet the growing cooling demands associated with AI and advanced computing." Claims of roughly 90 percent cooling-energy cuts and near-zero water use are company assertions. WRAL reported Chemours did not provide the underlying data when asked.

A 17-group coalition whose July 15 comments were led through Earthjustice, including Clean Cape Fear, urged EPA to deny the application. Cape Fear River Watch was not on that signatory list. That distinction matters for accuracy and for anyone tracking who speaks for the river.

The classification question

Advocates argue Opteon 2P50 belongs in the PFAS class. Chemours says it is an HFO that breaks down quickly in the atmosphere, is non-PBT, and "does not belong in the PFAS class." We report both positions. We do not pick a label in desk voice, because the chemistry is genuinely contested and the regulatory outcome is pending.

Chemours also told local reporters Opteon 2P50 will not be produced at Fayetteville Works. That is a company claim that matters because of that site's separate consent-order record. Don't conflate GenX history with Opteon chemistry, and don't write the Sept. 10 settlement as Opteon money.

NRDC's Drew Ball, to WECT: "When you combine that expansion of data centers and increased use of PFAS, I think folks have very good reason to be concerned." To WRAL: "There's no real closed-loop system when it comes to PFAS."

For context on the industry side: Amazon has said its Richmond County facilities will not use liquid immersion, and Microsoft told WRAL it does not add PFAS chemicals to data center cooling operations.

What's next

Pierce, separately on data-center readiness, told WECT that New Hanover needs to be prepared on electricity, water, and land use before an application lands. That's the county chair saying the next fight is coming, and it won't be about the last one.

What to watch

• The EPA clock. Comments closed in July; the agency's decision on P-26-0071 has no public date.
• The spend plan. New Hanover's commissioners have not locked how the $22.8 million gets spent.
• Chemours performance data. WRAL asked and didn't get it. The claims stay claims until the data moves.
• A named southeastern NC applicant. No liquid-immersion customer in the region is locked anywhere public.
• DEQ's posture on a novel HFO. Whether the department discloses or stays quiet as the filing moves.

Sources: Chemours press releases · Earthjustice coalition comments PDF (July 15, 2026) · The Guardian · WRAL (Aug. 25, 2026) · WECT (Sept. 1 and Sept. 10, 2026) · NC DEQ (Sept. 10, 2026) · WWAY · Port City Daily · Carolina Journal · Chemours Q2 2026 earnings call transcript. PFAS status of Opteon 2P50 is disputed between advocates and Chemours. Settlement figures follow DEQ's $455M + $135M framing unless attributed otherwise. Opteon is not part of the Sept. 10 settlement.