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

Michigan PFAS Action Response Team

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Michigan Adds 19 PFAS Contaminated Sites to List

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Michigan Adds 19 PFAS Contaminated Sites to List

In a continuing trend, another 19 sites with PFAS contamination have been added to the latest list of Michigan sites. The newest Michigan EGLE PFAS Map Tracker shows that the number of confirmed PFAS contaminated sites has grown to 93, up from 74  in December 2019 and 52 a year ago.  The latest list of PFAS contamination includes sites spread across Michigan, throughout both the lower and upper peninsulas, in rural, suburban, and urban areas The EGLE also provides a PFAS map viewer, which provides information on the site name, location and address, description of the site, and a link to site-specific background, data, PFAS contaminants, site history, and recent activities. 

Michigan PFAS Drinking Water Rules Moving Forward

Michigan PFAS Drinking Water Rules Moving Forward

Moving Michigan forward on PFAS drinking water regulations, the Science Advisory Workgroup recently provided its health-based values to the Michigan PFAS Action Response Team (MPART). These PFAS health-based values will be used by the State of Michigan to develop regulatory drinking water standards.

Michigan Sets New PFAS Health Screening Levels for Drinking Water

Michigan Sets New PFAS Health Screening Levels for Drinking Water

The State of Michigan has lowered the drinking water health screening levels for PFAS. These new levels replace the federal advisory guidelines of a combined 70 ppt for PFOA and PFOS that the state had been using since January 2018.

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Michigan to Establish PFAS Drinking Water MCLs

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Michigan to Establish PFAS Drinking Water MCLs

The MDEQ has been directed by the governor to begin the process of creating PFAS drinking water standards.  The MDEQ will file a Request for Rulemaking to establish maximum contaminant levels (MCLs). As part of the  governor’s direction, the Michigan PFAS Action Response Team (MPART) will form a science advisory workgroup to review health-based drinking water standards to support the rulemaking process and make recommendations by July 1.