EPA 1633, PFAS, ASTM D8421, MUR
Merit Laboratories, Inc.
PFAS by EPA 1633A and ASTM D8421 Included in ...

The analysis of PFAS by EPA 1633A and ASTM D8421 is part of the U.S. EPA’s Methods Update Rule (MUR) Rule 22. The action will promulgate EPA into 40 CFR Part 136. Also part of this action, PFAS method ASTM D8421 is proposed to be codified. 

PFAS by EPA 1633A and ASTM D8421 Included in EPA Methods Update Rule 22

Groundwater

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Michigan’s PFAS Groundwater Cleanup Rules Remain in Effect After Court of Claims Order

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Michigan’s PFAS Groundwater Cleanup Rules Remain in Effect After Court of Claims Order

Despite a Michigan Court of Claims order issued in November siding with 3M that the State of Michigan did not follow the required administrative procedures when establishing PFAS groundwater cleanup rules, the rules can continue to be used and remain active.