Let’s be honest, most of us don’t think twice when we fill up a glass of tap water. It’s supposed to be safe, right? But the truth is, there’s a growing buzz about what’s really in our water, and two big players are grabbing headlines right now: PFAS (aka "forever chemicals") and fluoride.

PFAS (Per- and Polyfluoroalkyl Substances) and TSS (Total Suspended Solids) are important in water quality monitoring, but very different.

On June 15, 2022, the EPA issued interim updated drinking water health advisories for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) that replace those the EPA originally issued in 2016.