1. (a) The MCLs and MCLGs for the per- and polyfluoroalkyl substances contaminants specified in (b), below, shall apply to community water systems and non-transient non-community water systems.

2. (b) The MCLs and MCLGs for PFAS contaminants shall be as specified in Table 705-7, below:

   Table 705-7: PFAS Contaminant MCLs and MCLGs

   PFAS Contaminant

   MCL (mg/L)

   MCLG (mg/L)

   Perfluorohexane sulfonic acid (PFHxS)

   0.000018

   0

   Perfluorononanoic acid (PFNA)

   0.000011

   0

   Perfluorooctane sulfonic acid (PFOS)

   0.000015

   0

   Perfluorooctanoic acid (PFOA)

   0.000012

   0

3. (c) Monitoring and compliance for PFAS contaminants shall be as specified in Env-Dw 707, Env-Dw 708, and Env-Dw 712.

Source. #12838, eff 9-30-19