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Hawaii DOH Updates PFAS Environmental Action Levels Guidance
Hawaii PFAS Environmental Action Levels (EALs) GuidanceHawaii Department of Health, Hazard Evaluation and Emergency Response OfficeHawaii
Announced
Feb 21, 2025
Description
Hawaii Department of Health updated its interim Environmental Action Levels (EALs) for PFAS, adding HFPO-DA (GenX) to the 'Primary Terminal PFASs' category due to its recalcitrance to breakdown in the environment and TOPs processing. The guidance establishes action levels for over 24 PFAS compounds including PFOA (4 ppt), PFOS (4 ppt), PFHxS (10 ppt), PFNA (10 ppt), HFPO-DA (10 ppt), and others with levels up to 18,000 ppt. Hawaii's EAL guidance is considered one of the most comprehensive PFAS screening frameworks in the United States, incorporating Total Oxidizable Precursors (TOPs) testing, Total Organic Fluorine (TOF) methods, and a Hawaii-specific calculator for cumulative risk assessment from complex PFAS mixtures.
Key Findings
Hawaii DOH Updates PFAS Environmental Action Levels Guidance
mation on PFASs and experience in the field is gained. Comments and suggestions are welcome at any time and should be submitted to John Jacob at john.jacob@doh.hawaii.gov. Attachment 1: Interim PFAS Guidance (pdf) Attachment 2: Summary PFAS EALs (pdf) Attachment 3: Detailed PFAS EALs (pdf) Attachment 4: Total PFAS Risk Fact Sheet (pdf) Attachment 5: Total PFASs Risk Calculator (Excel) Attachment 6: Summary of Previou