The Association of State Drinking Water Administrators (ASDWA) released the enclosed document “Per- and Polyfluoroalkyl Substances (PFAS) Laboratory TestingPrimer for State Drinking Water Programs and Public Water Systems.” (ASDWA-PFAS-Lab-Testing-Primer_2020-10-20)
Text copied from the introduction:
“This document provides guidance on how state drinking water programs can work with laboratories to test per- and polyfluoroalkyl substances (PFAS) in drinking water samples collected from public water systems. The document provides information on:
1) Selecting an analytical method;
2) Finding a qualified laboratory;
3) Specifying a PFAS list and the form that each PFAS needs to be reported in;
4) Specifying reporting limits;
5) Sample collection procedures;
6) Technical issues that cause variability in testing results;
7) Interpreting results; and
8) USEPA’s ongoing work to develop new analytical methods”
