Mich. Admin. Code R. 325.12708 - Certification for PFAS analyses

Rule 2708. To qualify for certification to conduct analyses for the PFASs in table 1 of R 325.10604g, a laboratory must be in compliance with the following provisions:

(a) Samples must be collected and analyzed in accordance with EPA method 537.1 or other methods as approved by the department.

(b) The minimum reporting limit must be 2 ng/l.

(c) Analytical results must be reported to the nearest ng/l.

(d) The laboratory must analyze performance evaluation samples that include the PFASs in table 1 of this rule and are acquired from a third party proficiency test provider approved by the department at least once per year.

(e) For each regulated PFAS contaminant included in the performance evaluation sample, the laboratory must achieve quantitative results on the analyses that are within the acceptance limits listed in table 1 of this rule.

Table 1 Acceptance limits

Contaminant	Chemical Abstract Services Registry Number	Acceptance Limits (percent)
Hexafluoropropylene oxide dimer acid (HFPO-DA)	13252-13-6	± 30% (GV) 1
Perfluorobutane sulfonic acid (PFBS)	375-73-5	± 30% (GV) 1
Perfluorohexane sulfonic acid (PFHxS)	355-46-4	± 30% (GV) 1
Perfluorohexanoic acid (PFHxA)	307-24-4	± 30% (GV) 1
Perfluorononanoic acid (PFNA)	375-95-1	± 30% (GV)1
Perfluorooctane sulfonic acid (PFOS)	1763-23-1	± 30% (GV) 1
Perfluorooctanoic acid (PFOA)	335-67-1	± 30% (GV) 1

Notes

Mich. Admin. Code R. 325.12708

2020 MR 14, Eff. 8/3/2020