Laboratories Offering Home Testing
PFAS MCLs and Drinking Water
PFAS Sites and Areas of Interest
There are two major classes of firefighting foam: Class A and Class B. Class B is also called Aqueous film forming foam (AFFF) and is usually created using PFAS. It is a highly effective foam used for fighting high-hazard flammable liquid fires, like gasoline, oil, and jet fuel.
Official Correspondence
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Values are listed in parts per trillion (ppt) which are equivalent to nanograms per liter.
| Specific PFAS | Criteria (ppt) |
|---|---|
| PFOS | 16 |
| PFOA | 8 |
| PFNA | 6 |
| PFBS | 420 |
| PFHxA | 400,000 |
| PFHxS | 51 |
| HXPO-DA (GenX) | 370 |
To find cleanup criteria for other contaminants under Part 201, visit the EGLE Cleanup Criteria Requirements for Response Activity webpage.