Reference Source

Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA)

For Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA), regulator is US EPA (National Primary Drinking Water Regulations); limit is 1(unitless); unit is unitless; limit type is MCL (Maximum Contaminant Level), recorded from its source on 2026-08-06; source re-checked 2026-09-16.

Contaminant
Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA) verified
Regulator
US EPA (National Primary Drinking Water Regulations) our reading
Limit
1(unitless) verified
Unit
unitless verified
Limit type
MCL (Maximum Contaminant Level) our reading
Sourceepa.gov
Verified
Review by
DatasetDrinking water contaminant limits by regulator

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

Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA) | 1(unitless) | 1(unitless)

epa.gov, retrieved 2026-08-06

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.