In collaboration with the U.S. Department of Defense, EPA is developing analytical methods to test for PFAS in wastewater as well as surface water, groundwater, leachate, soil, sediment, biosolids, and fish tissue. Forty PFAS are currently the subject of analytical method development.
Method development includes single- and multi-laboratory testing. Following single-laboratory validation, which demonstrates proof of concept, a multi-laboratory validation will be conducted to further determine method viability. EPA anticipates that multi-laboratory validation for this method will be finalized in 2021.