Regulation ChangeProposedProposed RegulationSubstance Addition
New Jersey Proposes Ground Water Quality Standards for GenX and Related PFAS
New Jersey Ground Water Quality Standards (N.J.A.C. 7:9C)New Jersey Department of Environmental Protection (NJDEP)New Jersey
Announced
Mar 17, 2025
Description
NJDEP proposed ground water quality standards for GenX (hexafluoropropylene oxide dimer acid and its ammonium salt), which are six-carbon perfluoroether carboxylates in the PFAS family. GenX has been detected in New Jersey soil and groundwater, including domestic potable wells. The proposed rule establishes interim ground water quality criteria of 0.02 μg/L for HFPO-DA (GenX), 0.002 μg/L for ClPFPECAs, and 0.0021 μg/L for PFPE-DCAs. The rule also addresses interim soil and soil leachate remediation standards for PFNA, PFOA, PFOS, and GenX.
Key Findings
New Jersey Proposes Ground Water Quality Standards for GenX and Related PFAS
NOTE: THIS IS A COURTESY COPY OF THIS RULE PROPOSAL. THE OFFICIAL VERSION WILL BE PUBLISHED IN THE MARCH 17, 2025 NEW JERSEY REGISTER. SHOULD THERE BE ANY DISCREPANCIES BETWEEN THIS TEXT AND THE OFFICIAL VERSION OF THE PROPOSAL, THE OFFICIAL VERSION WILL GOVERN. 1 ENVIRONMENTAL PROTECTION WATER RESOURCE MANAGEMENT CONTAMINATED SITE REMEDIATION AND REDEVELOPMENT Ground Water Quality Standards Remediation Standards Tec