Federal — PFHxS/PFNA/HFPO-DA/PFBS mixtures

For Federal, state–chemical pair is Federal — PFHxS/PFNA/HFPO-DA/PFBS mixtures; pfas compound is PFHxS, PFNA, HFPO-DA, and PFBS mixtures; concentration limit (ppt) is 1 (Hazard Index); regulation type is MCL; stricter than federal mcl is n/a, recorded from its source on 2026-08-14.

State–chemical pair: Federal — PFHxS/PFNA/HFPO-DA/PFBS mixtures
State: Federal
PFAS compound: PFHxS, PFNA, HFPO-DA, and PFBS mixtures
Concentration limit (ppt): 1 (Hazard Index)
Regulation type: MCL
Stricter than federal MCL: n/a our reading
Effective date: 2024-04-10
Regulatory citation: PFAS National Primary Drinking Water Regulation, 89 FR 32532

Sourceepa.gov

Verified2026-08-14

Review by2027-02-10

DatasetPFAS drinking water concentration limits by US state — MCLs, notification levels, action levels, and health advisories for PFOA, PFOS, and other per- and polyfluoroalkyl substances

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS | 1 (unitless) Hazard Index | 1 (unitless) Hazard Index

— epa.gov, retrieved 2026-08-14

Source

epa.govhttps://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas

Last verified against source: 2026-08-14. Due for re-check by 2027-02-10. This page as Markdown · OKF bundle · full dataset as JSON.