Community Groups Sue to Block Permits for Micron’s $100 Billion New York Megafab Over PFAS Wastewater Limits

Environmental and labor coalitions have launched a targeted legal challenge in Albany County Supreme Court to invalidate key environmental permits for Micron Technology’s $100 billion semiconductor complex in Clay, New York, arguing state regulators failed to establish binding controls on toxic chemical discharges.

The Article 78 petition, filed July 31 by Neighbors for a Better Micron and Jobs to Move America, names the New York Department of Environmental Conservation (DEC), Onondaga County, and Micron Technology as respondents. The legal action seeks to annul a Title V air permit granted on March 31 for Micron’s first two fabrication facilities and an April 10 state pollutant discharge permit issued for the nearby Oak Orchard Wastewater Treatment Plant.

At the center of the dispute is a municipal expansion exceeding $1 billion at the Oak Orchard plant, designed to process industrial wastewater from the 1,400-acre megafab campus and increase permitted average discharges into the Oneida River from 10 million to 30.8 million gallons per day. While the wastewater permit identifies 40 per- and polyfluoroalkyl substances (PFAS), it only requires quarterly monitoring and establishes a 10-nanogram-per-liter action level for PFOA and PFOS at the plant’s combined outfall. Plaintiffs emphasize that exceeding this threshold merely triggers internal investigation and minimization steps rather than enforceable discharge limits or prohibitions.

PFAS chemicals are heavily utilized in semiconductor manufacturing, particularly during photolithography, chemical-mechanical planarization, and plasma etching processes due to their heat and chemical resistance. The lawsuit highlights an emerging friction between industrial discharge permits and federal drinking water standards; in April 2024, the U.S. Environmental Protection Agency finalized legally binding national primary drinking water regulations setting enforceable limits for PFOA and PFOS at 4.0 parts per trillion (4.0 nanograms per liter)—significantly lower than the 10-nanogram action level assigned to the municipal facility handling Micron’s effluent.

The petition also targets DEC’s authorization of Micron’s air permit. State regulators previously acknowledged that greenhouse gas emissions from the chip fabs and expanded wastewater operations would conflict with targets under New York’s Climate Leadership and Community Protection Act. However, state officials approved the permits by citing overriding national security priorities and domestic semiconductor supply goals under the federal CHIPS and Science Act, which awarded Micron $6.14 billion in direct funding. The plaintiffs contend that crucial environmental impact analyses and emissions mitigation controls were improperly deferred until after permit issuance.

Micron, which initiated site work in January and poured first concrete in July, stated it does not comment on active litigation, adding that the project underwent extensive regulatory review and will comply with all environmental laws. The Clay campus is planned to house four fabs, creating 9,000 direct positions and over 40,000 supply chain jobs, with its first fab scheduled to begin operations in 2030. The legal action follows a broader environmental review lawsuit filed by the same advocacy groups in January, which faces oral arguments on Micron’s motion to dismiss on August 25.